• 제목/요약/키워드: 3'-Processing

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인공지능 기술 기반 인슈어테크와 디지털보험플랫폼 성공사례 분석: 중국 평안보험그룹을 중심으로 (Analysis of Success Cases of InsurTech and Digital Insurance Platform Based on Artificial Intelligence Technologies: Focused on Ping An Insurance Group Ltd. in China)

  • 이재원;오상진
    • 지능정보연구
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    • 제26권3호
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    • pp.71-90
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    • 2020
  • 최근 전 세계 보험업계에도 기계학습, 자연어 처리, 딥러닝 등의 인공지능 기술 활용을 통한 디지털 전환이 급속도로 확산하고 있다. 이에 따라 인공지능 기술을 기반으로 한 인슈어테크와 플랫폼 비즈니스 성공을 이룬 해외 보험사들도 증가하고 있다. 대표적으로 중국 최대 민영기업인 평안보험그룹은 '금융과 기술', '금융과 생태계'를 기업의 핵심 키워드로 내세우며 끊임없는 혁신에 도전한 결과, 인슈어테크와 디지털플랫폼 분야에서 괄목할만한 성과를 보이며 중국의 글로벌 4차 산업혁명을 선도하고 있다. 이에 본 연구는 평안보험그룹 인슈어테크와 플랫폼 비즈니스 활동을 ser-M 분석 모델을 통해 분석하여 국내 보험사들의 인공지능 기술기반 비즈니스 활성화를 위한 전략적 시사점을 제공하고자 했다. ser-M 분석 모델은 기업의 경영전략을 주체, 환경, 자원, 메커니즘 관점에서 통합적으로 해석이 가능한 프레임으로, 최고경영자의 비전과 리더십, 기업의 역사적 환경, 다양한 자원 활용, 독특한 메커니즘 관계가 통합적으로 해석되도록 연구하였다. 사례분석 결과, 평안보험은 안면·음성·표정 인식 등 핵심 인공지능 기술을 활용하여 세일즈, 보험인수, 보험금 청구, 대출 서비스 등 업무 전 영역을 디지털로 혁신함으로써 경비 절감과 고객서비스 발전을 이루었다. 또한 '중국 내 온라인 데이터'와 '회사가 축적한 방대한 오프라인 데이터 및 통찰력'을 인공지능, 빅데이터 분석 등 신기술과 결합하여 금융 서비스와 디지털 서비스 사업이 통합된 디지털 플랫폼을 구축하였다. 이러한 평안보험그룹의 성공 배경을 ser-M 관점에서 분석해 보면, 창업자 마밍즈 회장은 4차 산업혁명 시대의 디지털 기술발전, 시장경쟁 및 인구 구조의 변화를 빠르게 포착하여 새로운 비전을 수립하고 디지털 기술중시의 민첩한 리더십을 발휘하였다. 환경변화에 대응한 창업자 주도의 강력한 리더십을 바탕으로 인공지능 기술 투자, 우수 전문인력 확보, 빅데이터 역량 강화 등 내부자원을 혁신하고, 외부 흡수역량의 결합, 다양한 업종 간의 전략적 제휴를 통해 인슈어테크와 플랫폼 비즈니스를 성공적으로 끌어냈다. 이와 같은 성공사례 분석을 통하여 인슈어테크와 디지털플랫폼 도입을 본격 준비하고 있는 국내 보험사들에게 디지털 시대에 필요한 경영 전략과 리더십에 대한 시사점을 줄 수 있다.

외식 프랜차이즈 가맹본부의 사후 지원서비스가 가맹점의 관계품질과 경영성과에 미치는 영향 (The Effect of Franchisor's On-going Support Services on Franchisee's Relationship Quality and Business Performance in the Foodservice Industry)

  • 이재한;이용기;한규철
    • 한국유통학회지:유통연구
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    • 제15권3호
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    • pp.1-34
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    • 2010
  • 본 연구의 목적은 국내 외식 프랜차이즈 시스템에서 가맹점에 대한 가맹본부의 관계품질에 영향을 미치는 변수를 사후 지원서비스로 설정하고, 사후 지원서비스가 가맹점의 관계품질(신뢰, 만족, 몰입)과 경영성과(재무적 성과, 비재무적 성과)에 미치는 영향에 대한 포괄적인 모형을 개발하는 것이다. 제안된 모형을 검증하기 위하여 서울 및 경기 지역의 외식 프랜차이즈 가맹점 경영자 500명을 대상으로 설문 조사를 하여, 구조방정식을 통해 실증 분석하였다. 분석결과는 다음과 같다. 첫째, 사후 지원서비스 요인 중 제품범주 및 가격 요인과 정보제공 및 문제해결 능력 요인은 가맹점의 만족과 몰입에만 영향을 미치는 것으로 나타났다. 둘째, 물류지원과 슈퍼바이저 지원 요인은 신뢰와 만족에만 영향을 미치는 것으로 나타났다. 셋째, 재교육 및 훈련지원 요인은 가맹점의 신뢰와 몰입에만 영향을 미치는 것으로 나타났다. 넷째, 판매촉진 요인은 신뢰 만족, 그리고 몰입 모두에 영향을 미치는 것으로 나타났다. 다섯째, 관계품질요인들 간의 관계는 신뢰가 만족에 긍정적인 영향을 미치지만 몰입에는 직접적으로 영향을 미치지 못하고, 만족을 통해서 몰입에 긍정적인 영향을 미치는 것으로 나타났다. 여섯째, 신뢰는 재무적 성과에만 긍정적인 영향을 미치고, 만족과 몰입은 재무적 성과와 비재무적 성과 모두에 긍정적 영향을 미치는 것으로 나타났다. 마지막으로 본 연구의 결과요약과 시사점, 그리고 연구의 한계점과 향후 연구방향이 제시되었다.

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High Resolution HC$_3$N Observations toward the Central Region of Sagittarius B2

  • H.S-Ching;Oh, M.ishi;M.Morimoto
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 1993년도 한국우주과학회보 제2권2호
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    • pp.17-17
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    • 1993
  • The wall shear stress in the vicinity of end-to end anastomoses under steady flow conditions was measured using a flush-mounted hot-film anemometer(FMHFA) probe. The experimental measurements were in good agreement with numerical results except in flow with low Reynolds numbers. The wall shear stress increased proximal to the anastomosis in flow from the Penrose tubing (simulating an artery) to the PTFE: graft. In flow from the PTFE graft to the Penrose tubing, low wall shear stress was observed distal to the anastomosis. Abnormal distributions of wall shear stress in the vicinity of the anastomosis, resulting from the compliance mismatch between the graft and the host artery, might be an important factor of ANFH formation and the graft failure. The present study suggests a correlation between regions of the low wall shear stress and the development of anastomotic neointimal fibrous hyperplasia(ANPH) in end-to-end anastomoses. 30523 T00401030523 ^x Air pressure decay(APD) rate and ultrafiltration rate(UFR) tests were performed on new and saline rinsed dialyzers as well as those roused in patients several times. C-DAK 4000 (Cordis Dow) and CF IS-11 (Baxter Travenol) reused dialyzers obtained from the dialysis clinic were used in the present study. The new dialyzers exhibited a relatively flat APD, whereas saline rinsed and reused dialyzers showed considerable amount of decay. C-DAH dialyzers had a larger APD(11.70${\pm}$1.32mmHg/min)compared to CF dialyzers(4.32${\pm}$0.55mmHg/min)(p<0.05). However, there was no observable difference in the UFR between the two dialyzers. Neither APD nor UFR showed any significant increase with an increasing number of reuses for up to more than 20reuses. A substantial number of failures observed in APD(larger than 20mmHe/min)on the reused dialyzers(2 out of 40 CP and S out 26 C-DAK) were attributed to the Possible damage on the fibers. The CF 15-11 HFDs which failed APD test did not show changes in the UFR compared to normal dialyzers indicating that APD is a more sensitive test than UFR test to evaluate the integrity of the fibers. 30527 T00401030527 ^x For quantitative measurement of reflected light from a clinical diagnostic strip, a prototype old reflectance photometer was designed. The strip loader and cassette were made to obtain more accurate reflectance parameters. The strip was illuminated at 45˚c through optical fiber and the intensity of reflected light was determined at rectanguLat angle using a photodiode. The kubelka-munk coefficient and reflection optical density were determined ar four different wavelengths(500,550,570 and 610nm) for blood glucose strip. For higher concentration than 300mg/41 about glucose, a saturation state of abforbance was observed at 500,550 and 570nm. The correlation between glucose concentration and parameters was the best at 610nm. 30535 T00401030535 ^x Radiation-induced fibrosarcoma tumors were grown on the flanks of C3H mice. The mice were divided into two groups. One group was injected with Photofrin II, intravenously (2.5mg/kg body weight). The other group received no Photofrin II. Mice from both groups were irradialed for approximately 15 minutes at 100,300, or 500 mW/cm2 with the argon (488nm/514.5 nm), dye(628nm) and gold vapor (pulsed 628 nm) laser light. A photosensitizer behaved as an added absorber. Under our experimental conditions, the presence of Photolfrin II increased surface temperature by at least 40% and the temperature rise due to 300 mW/cm2 irradiation exceeded values for hyperthermia. Light and temperature distributions with depth were estimated by a computer model. The model demonstrated the influence of wavelength on the thermal process and proved to be a valuable tool to investigate internal temperature rise. 30536 T00401030536 ^x We investigated the structural geometry of thirty-eight Korean femurs. The purpose of this study is to identify major geometrical differences between Korean femurs 3nd others that we believe belong to Caucasians so that we would be able to get insights into the femoral component design that fits Asians including Koreans. We utilized computerized tomography (CT) images of femurs extracted from cadavers. The CT images were transformed into bitmap data by using a film scanner, and then analyzed by using a commercially available software called Image v.1.0 and a Macintosh IIci computer.The resulting data were compared with already published data. The major results show that the geometry of the Korean femurs is significantly different from that of Caucasians: (1) the anteversion angle and the canal flare index are greater by the amount of approximately 8˚ and 0.5, respectively, (2) the shape of the isthmus cross section is more round, and (3) the distance between the teaser trochanter and the proximal border of the isthmus is shelter by about 15 mm. The results suggested that the femoral component suitable for Asians should be different from the currently-used components designed and manufactured mostly by European or American companies. 30537 T00401030537 ^x It is well known that nonlinear propagation characteristics of the wave in the tissue may give very useful information for the medical diagnoisis. In this paper, a new method to detect nonlinear propagation characteristics of the internal vibration in the tissue for the low frequency mechanical vibration by using bispectral analysis is proposed. In the method, low frequency vibration of f0( = 100Hz) is applied on the surface of the object, and the waveform of the internal vibration x (t) is measured from Doppler frequency modulation of silmultaneously transmitted probing ultrasonic waves. Then, the bispectra of the signal x (t) at the frequencies (f0, f0) and (f0, 2f0) are calculated to estimate the nonlinear propagation characteristics as their magnitude ratio, w here since bispectrum is free from the gaussian additive noise we can get the value with high S/N. Basic experimental system is constructed by using 3.0 MHz probing ultrasonic waves and the several experiments are carried out for some phantoms. Results show the superiority of the proposed method to the conventional method using power spectrum and also its usefulness for the tissue characterization. 30541 T00401030541 ^x This paper describes the implementation of a computerized radial pulse diagnosis by aids of a clinical expert. On this base, we composed of the radial pulse diagnosis system in korean traditional medicine. The system composed of a radial pulse wave detection system and a radial pulse diagnosis system. With a detection system, we detected Inyoung and Cheongu radial pulse wave and processed it. Then, we have got the characteristic parameters of radial pulse wave and also quantified that according to the method of Inyoung-Cheongu Comparison Radial Pulse Diagnosis. We defined the jugement standard of radial pulse diagnosis system and then we confirmed the possibility for realization of automatic radial pulse diagnosis in korean traditional medicine. 30545 T00401030545 ^x Microspheres are expected to be applied to biomedical areas such as solid-phase immunoassays, drug delivery systems, immunomagnetic cell separation. To synthesize microspheres for biomedical application, "two stage shot growth method" was developed. The uniformity ratio of synthesized microspheres was always smaller than 1.05. And the surface charge density (or the number of ionizable functional groups) of the microspheres synthesized by "two stage shot growth method" was 6~13 times higher than that of the microspheres synthesized by conventional seeded batch copolymerization. As a previous step for biomedical application, adsorption experiments of bovine albumin on microspheres were carried out under various conditions. The maximum adsorbed amount was obtained in the neighborhood of pH 4.5. Isoelectric point of bovine albumin is pH 5.0, so experimental result shows that it shifted to acid area. The adsorption isotherm was obtained, the plateau region was always reached at 2.Og/L (bulk concentration of bovine albumin).The effect of the kind and the amount of surface functional group was also examined. 30575 T00401030575 ^x A medical image workstation was developed using multimedia technique. The system based on PC-486DX was designed to acquire medical images produced by medical imaging instruments and related audio information, that is, doctors' reporting results. Input information was processed and analyzed, then the results were presented in the form of graph and animation. All the informations of the system were hierarchically related with the image as the apex. Processing and analysis algorithms were implemented so that the diagnostic accuracy could be improved. The diagnosed information can be transferred for patient diagnosis through LAN(local area network). 30592 T00401030592 ^x In the conventional infrared imaging system, complex infrared lens systems are usually used for directing collimated narrow infrared beams into the high speed 2-dimensional optic scanner. In this paper, a simple reflective infrared optic system with a 2-dimensional optic scanner is proposed for the realization of medical infrared thermography system. It has been experimentally proven that the intfrared thermography system composed of the proposed optic system has the temperature resolution of 0.1˚c under the spatial resolution of lmrad, the image matrix size of 256 X 240, and tile imaging time of 4 seconds. 30593 T00401030593 ^x In this paper, MIIS (Medical Image Information System) has been designed and implemented using INGRES RDBMS, which is based on a client/server architecture. The implemented system allows users to register and retrieve patient information, medical images and diagnostic reports. It also provides the function to display these information on workstation windows simultaneously by using the designed menu-driven graphic user interface. The medical image compression/decompression techniques are implemented and integrated into the medical image database system for the efficient data storage and the fast access through the network. 30594 T00401030594 ^x In this paper, computerized BEAM was implemented for the space domain analysis of EEG. Trans-formation from temporal summation to two-dimensional mappings is formed by 4 nearest point inter-polaton method. Methods of representation of BEAM are two. One is dot density method which classify brain electrical potential 9 levels by dot density of gray levels and the other is colour method which classify brain electrical 12 levels by red-green colours. In this BEAM, instantaneous change and average energy distribution over any arbitrary time interval of brain electrical activity could be observed and analyzed easily. In the frequency domain, the distribution of energy spectrum of a special band can easily be distinguished normality and abnormality. 30608 T00401030608 ^x Laboratory information system (LIS) is a key tool to manage laboratory data in clinical pathology. Our department has developed an information system for routine hematology using down-sized computer system. We have used an IBM 486 compatible PC with 16MB main memory, 210 MB hard disk drive, 9 RS-232C port and 24 pin dot printer. The operating system and database management system were SCO UNIX and SCO foxbase, respectively. For program development, we used Xbase language provided by SCO foxbase. The C language was used for interface purpose. To make the system use friendly, pull-down menu was used. The system connected to our hospital information system via application program interface (API), so the information related to patient and request details is automatically transmitted to our computer. Our system interfaced with fwd complete blood count analyzers(Sysmex NE-8000 and Coulter STKS) for unidirectional data tansmission from analyzer to computer. The authors suggests that this system based on down-sized computer could provide a progressive approach to total LIS based on local area network, and the implemented system could serve as a model for other hospital's LIS for routine hematology. 30609 T00401030609 ^x To develop an artificial bone substitute that is gradually degraded and replaced by the regenerated natural bone, the authors designed a composite that is consisted of calcium phosphate and collagen. To use as the structural matrix of the composite, collagen was purified from human umbilical cord. The obtained collagen was treated by pepsin to remove telopeptides, and finally, the immune-free atelocollagen was produced: The cross linked atelocollagen was highly resistant to the collagenase induced collagenolysis. The cross linked collagen demonstrated an improved tensile strength. 30618 T00401030618 ^x This paper is a study on the design of adptive filter for QRS complex detection. We propose a simple adaptive algorithm to increase capability of noise cancelation in QRS complex detection with two stage adaptive filter. At the first stage, background noise is removed and at the next stage, only spectrum of QRS complex components is passed. Two adaptive filters can afford to keep track of the changes of both noise and QRS complex. Each adaptive filter consists of prediction error filter and FIR filter The impulse response of FIR filter uses coefficients of prediction error filter. The detection rates for 105 and 108 of MIT/BIH data base were 99.3% and 97.4% respectively. 30619 T00401030619 ^x To develop an artificial bone substitute that is gradually degraded and replaced by the regenerated natural bone, the authors designed and produced a composite that is consisted of calcium phosphate and collagen. Human umbilical cord origin pepsin treated type I atelocollagen was used as the structural matrix, by which sintered or non-sintered carbonate apatite was encapsulated to form an inorganic-organic composite. With cross linking atelocollagen by UV ray irradiation, the resistance to both compressive and tensile strength was increased. Collagen degradation by the collagenase induced collagenolysis was also decreased. 30620 T00401030620 ^x We have developed a monoleaflet polymer valve as an inexpensive and viable alternative, especially for short-term use in the ventricular assist device or total artificial heart. The frame and leaflet of the polymer valve were made from polyurethane, To evaluate the hemodynamic performance of the polymer valve a comparative study of flow dynamics past a polymer valve and a St. Jude Medical prosthetic valve under physiological pulsatile flow conditions in vitro was made. Comparisons between the valves were made on the transvalvular pressure drop, regurgitation volume and maximum valve opening area. The polymer valve showed smaller regurgitation volume and transvalvular pressure drop compared to the mechanical valve at higher heart rate. The results showed that the functional characteristics of the polymer valve compared favorably with those of the mechanical valve at higher heart rate. 30621 T00401030621 ^x Explosive evaporative removal process of biological tissue by absorption of a CW laser has been simulated by using gelatin and a multimode Nd:YAG laser. Because the point of maximun temperature of laser-irradiated gelatin exists below the surface due to surface cooling, evaporation at the boiling temperature is made explosively from below the surface. The important parameters of this process are the conduction loss to laser power absorption (defined as the conduction-to-laser power parameter, Nk), the convection heat transfer at the surface to conduction loss (defined as Bi), dimensionless extinction coefficient (defined as Br.), and dimensionless irradiation time (defined as Fo). Dependence of Fo on Nk and Bi has been observed by experiment, and the results have been compared with the numerical results obtained by solving a 2-dimensional conduction equation. Fo and explosion depth (from the surface to the point of maximun temperature) are increased when Nk and Bi are increased.To find out the minimum laser power for explosive evaporative removal process, steady state analysis has been also made. The limit of Nk to induce evaporative removal, which is proportional to the inverse of the laser power, has been obtained. 30622 T00401030622 ^x N1 and N2 gross neural action potentials were measured from the round window of the guinea pig cochlea at the onset of the acoustic stimuli. N1-N2 audiograms were made by means of regulating stimulant intensities in order to produce constant N1-N2 potentials as criteria for different input tone pip frequencies. The lowest threshold was measured with an input tone pip I5 dB SPL in intensity and 12 KHz in frequency when the animal was in normal physiological condition. The procedure of experimental measurements is explained in detail. This experimental approach is very useful for the investigation of the Cochlear function. Both noN1inear and active functions of the Cochlea can be monitored by N1-N2 audiograms. 30623 T00401030623 ^x In electrical impedance tomography(EIT), we use boundary current and voltage measurements toprovide the information about the cross-sectional distribution of electrical impedance or resistivity. One of the major problems in EIT has been the inaccessibility of internal voltage or current data in finding the internal impedance values. We propose a new image reconstruction method using internal current density data measured by NMR. We obtained a two-dimensional current density distribution within a phantom by processing the real and imaginary MR images from a 4.77 NMR machine. We implemented a resistivity mage reconstruction algorithm using the finite element method and sensitivity matrix. We presented computer simulation results of the mage reconstruction algorithm and furture direction of the research. 30624 T00401030624 ^x A new method of digital image analysis technique for discrimination of cancer cell was presented in this paper. The object image was the Thyroid eland cells image that was diagnosed as normal and abnormal (two types of abnormal: follicular neoplastic cell, and papillary neoplastic cell), respectively. By using the proposed region segmentation algorithm, the cells were segmented into nucleus. The 16 feature parameters were used to calculate the features of each nucleus. A9 a consequence of using dominant feature parameters method proposed in this paper, discrimination rate of 91.11% was obtained for Thyroid Gland cells. 30625 T00401030625 ^x An electrical stimulator was designed to induce locomotion for paraplegic patients caused by central nervous system injury. Optimal stimulus parameters, which can minimize muscle fatigue and can achieve effective muscle contraction were determined in slow and fast muscles in Sprague-Dawley rats. Stimulus patterns of our stimulator were designed to simulate electromyographic activity monitored during locomotion of normal subjects. Muscle types of the lower extremity were classified according to their mechanical property of contraction, which are slow muscle (msoleus m.) and fast muscle (medial gastrocneminus m., rectus femoris m., vastus lateralis m.). Optimal parameters of electrical stimulation for slow muscles were 20 Hz, 0.2 ms square pulse. For fast muscle, 40 Hz, 0.3 ms square pulse was optimal to produce repeated contraction. Higher stimulus intensity was required when synergistic muscles were stimulated simultaneously than when they were stimulated individually. Electrical stimulation for each muscle was designed to generate bipedal locomotion, so that individual muscles alternate contraction and relaxation to simulate stance and swing phases. Portable electrical stimulator with 16 channels built in microprocessor was constructed and applied to paraplegic patients due to lumbar cord injury. The electrical stimulator restored partially gait function in paraplegic patients. 30626 T00401030626 ^x Two-Dimensional modelling of the Cochlear biomechanics is presented in this paper. The Laplace partial differential equation which represents the fluid mechanics of the Cochlea has been transformed into two-dimensional electrical transmission line. The procedure of this transformation is explained in detail. The comparison between one and two dimensional models is also presented. This electrical modelling of the basilar membrane (BM) is clearly useful for the next approach to the further. Development of active elements which are essential in the producing of the sharp tuning of the BM. This paper shows that two-dimension model is qualitatively better than one-dimensional model both in amplitude and phase responses of the BM displacement. The present model is only for frequency response. However because the model is electrical, the two-dimensional transmission line model can be extended to time response without any difficult. 30627 T00401030627 ^x A method has been proposed for the fully automatic detection of left ventricular endocardial boundary in 2D short axis echocardiogram using geometric model. The procedure has the following three distinct stages. First, the initial center is estimated by the initial center estimation algorithm which is applied to decimated image. Second, the center estimation algorithm is applied to original image and then best-fit elliptic model estimation is processed. Third, best-fit boundary is detected by the cost function which is based on the best-fit elliptic model. The proposed method shows effective result without manual intervention by a human operator. 30628 T00401030628 ^x The intelligent trajectory control method that controls moving direction and average velocity for a prosthetic arm is proposed by pattern recognition and force estimations using EMG signals. Also, we propose the real time trajectory planning method which generates continuous accelleration paths using 3 stage linear filters to minimize the impact to human body induced by arm motions and to reduce the muscle fatigue. We use combination of MLP and fuzzy filter for pattern recognition to estimate the direction of a muscle and Hogan's method for the force estimation. EMG signals are acquired by using a amputation simulator and 2 dimensional joystick motion. The simulation results of proposed prosthetic arm control system using the EMf signals show that the arm is effectively followed the desired trajectory depended on estimated force and direction of muscle movements. 30638 T00401030638 ^x A new neural network architecture for the recognition of patterns from images is proposed, which is partially based on the results of physiological studies. The proposed network is composed of multi-layers and the nerve cells in each layer are connected by spatial filters which approximate receptive fields in optic nerve fields. In the proposed method, patterns recognition for complicated images is carried out using global features as well as local features such as lines and end-points. A new generating method of matched filers representing global features is proposed in this network. 30659 T00401030659 ^x An implementation scheme of the magnetic nerve stimulator using a switching mode power supply is proposed. By using a switching mode power supply rather than a conventional linear power supply for charging high voltage capacitors, the weight and size of the magnetic nerve stimulator can be considerably reduced. Maximum output voltage of the developed magnetic nerve stimulator using the switching mode power supply is 3,000 volts and switching time is about 100 msec. Experimental results or human nerve stimulations using the developed stimulator are presented. 30768 T00401030768 ^x In this paper, we describe the design methodology and specifications of the developed module-based bedside monitors for patient monitoring. The bedside monitor consists of a main unit and module cases with various parameter modules. The main unit includes a 12.1" TFT color LCD, a main CPU board, and peripherals such as a module controller, Ethernet LAN card, video card, rotate/push button controller, etc. The main unit can connect at maximum three module cases each of which can accommodate up to 7 parameter modules. They include the modules for electrocardiograph, respiration, invasive blood pressure, noninvasive blood pressure, temperature, and SpO2 with Plethysmograph.

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한·중 FTA가 항공운송 부문에 미치는 영향과 우리나라 항공정책의 방향 (The Effect on Air Transport Sector by Korea-China FTA and Aviation Policy Direction of Korea)

  • 이강빈
    • 항공우주정책ㆍ법학회지
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    • 제32권1호
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    • pp.83-138
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    • 2017
  • 한 중 FTA가 2015년 12월 20일 발효되었고, 우리나라 제1위의 교역상대국인 중국과의 FTA로서 발효된 후 1년이 경과하였다. 따라서 본 연구에서는 한국과 중국 간 항공운송 교역 동향을 살펴보고, 한 중 FTA의 항공운송서비스 부문에 대한 양허내용을 검토하고, 항공운송 부문에 미치는 영향을 분석하며, 이에 대응하기 위한 우리나라 항공정책의 방향을 도출하여 제시하고자 한다. 2016년 한 중 간 항공운송 교역 동향을 살펴보면, 대중국 항공운송 수출액은 전년대비 9.3% 감소한 400.3억 달러로서, 대중국 전체 수출액의 32.2%를 차지하고 있다. 대중국 항공운송 수입액은 전년대비 9.1% 감소한 242.6억 달러로서, 대중국 전체 수입액의 27.7%를 차지하고 있다. 한 중 FTA의 항공운송서비스 부문 양허내용을 검토해 보면, 중국은 한 중 FTA 협정문 제8장 부속서 중국의 양허표에서 항공운송서비스 분야의 항공기 보수 및 유지 서비스, 컴퓨터 예약시스템(CRS)서비스에 대하여 시장접근과 내국민대우에 대한 제한을 두고 양허하였다. 한국은 한 중 FTA 협정문 제8장 부속서 한국의 양허표에서 항공운송서비스 분야의 컴퓨터 예약시스템서비스, 항공운송서비스의 판매 및 마케팅, 항공기 유지 및 보수 서비스에 대하여 시장접근과 내국민대우에 대한 제한을 두지 않고 양허하였다. 한 중 FTA가 항공운송 부문에 미치는 영향을 분석해 보면, 항공여객시장에 미친 영향으로, 2016년 국제선 중국노선 도착여객은 996만 명으로 전년대비 20.6% 증가하였고, 출발여객은 990만 명으로 전년대비 34.8% 증가하였다. 항공화물시장에 미친 영향으로, 2016년 대중국 항공화물 수출물동량은 105,220.2톤으로 전년대비 6.6% 증가하였고, 수입물동량은 133,750.9톤으로 전년대비 12.3% 증가하였다. 대중국 수출 항공화물 주요품목가운데 한 중 FTA 협정문 중국 관세양허표 상 수혜품목의 수출물동량이 증가하였고, 대중국 수입항공화물 주요품목가운데 한 중 FTA 한국 관세양허표 상 수혜품목의 수입물 동량이 증가하였다. 항공물류시장에 미친 영향으로 2016년 국내 포워더의 대중국 수출 항공화물 취급실적은 119,618톤으로 전년대비 2.1% 감소하였고, 대중국 수입 항공화물 취급실적은 79,430톤으로 전년대비 4.4% 감소하였다. 2016년 대중국 역직구(전자상거래 수출) 수출금액은 1억 916만 달러로 전년대비 27.7% 증가하였고, 대중국직구(전자상거래 수입) 수입금액은 8,943만 달러로 전년대비 72% 증가하였다. 한 중 FTA에 따른 우리나라 항공정책의 방향을 도출하여 제시해 보면 다음과 같다. 첫째 한 중 간에 항공자유화를 추진한다. 한국과 중국은 2006년 6월 중국의 산동성과 해남성에 대해 여객 및 화물 제3자유 및 제4자유를 범위로 하는 항공자유화 협정을 체결하였으며, 2010년 하계부터 양국 간 항공운항을 전면 자유화하기로 합의하였으나, 중국 측에서 항공협정 양해각서 문안의 해석 상 이의를 제기함에 따라 추가적인 항공자유화는 이루어지지 못하고 있다. 한 중 FTA와는 별도의 항공회담을 통해 중국과의 점진적 선별적 항공여객시장 및 화물시장의 항공자유화를 추진해야 할 것이다. 둘째 항공운송산업 및 공항의 경쟁력을 확보해야 한다. 한국의 항공운송산업 경쟁력의 강화방안으로 국적항공사 경쟁력의 강화를 위한 지원체계를 마련하며, 국적항공사의 새로운 공정경쟁의 기반을 조성하며, 국익기반 전략적 네트워크를 구축해야 할 것이다. 한국의 공항 특히 인천공항의 경쟁력 강화방안으로 항공수요 창출 네트워크 경쟁력을 강화하며, 공항시설과 안전인프라를 확충하며, 공항을 통한 새로운 부가가치를 창출하며, 세계 1위 수준의 서비스 수준을 유지해야 할 것이다. 셋째 항공물류업의 경쟁력을 강화한다. 한국의 항공물류업 경쟁력의 강화방안으로 산업트렌드 변화에 대응한 고부가가치 물류산업의 육성전략으로 신규 물류시장을 개척하며, 물류인프라를 확충하며, 물류전문인력을 양성한다. 또한 글로벌 물류시장의 확대전략으로 물류기업의 해외투자 지원체계를 구축하며, 글로벌 운송네트워크 확장에 따른 국제협력 강화 및 인프라를 확보해야 할 것이다. 인천공항 항공물류 경쟁력의 강화방안으로 기업의 물류단지 입주수요에 대응하며, 신 성장 화물분야의 비교우위 선점을 하며, 물류허브 역량을 강화하며, 공항 내 화물처리속도 경쟁력을 향상해야 할 것이다. 넷째 한 중 FTA 후속 협상에서 항공운송서비스 분야의 추가 개방을 확보한다. 한 중 FTA 발효 후 2년 내에 개시될 후속 협상에서 중국 측 항공운송서비스 분야의 양허수준이 중국의 기체결 FTA에 비해 미흡한 분야인 컴퓨터 예약시스템서비스 및 항공기 보수 및 유지 서비스의 양허에 대해 추가 개방을 요구하는 것이 필요할 것이다. 결론적으로 한 중 FTA가 우리나라 항공여객시장, 항공화물시장 및 항공물류시장에 미치는 영향에 대응하여 추진해야 할 정책과제로서, 국적항공사의 경쟁력과 국민 편익을 고려하여 중국과의 점진적 선별적 항공자유화를 추진하며, 항공운송산업과 공항의 경쟁력 강화를 위한 지원체계를 구축하며, 물류기업들의 항공물류시장 진출을 확대하며, 중국 측 양허수준이 낮은 항공운송서비스 분야의 추가 개방 요구를 위한 준비를 해야 할 것이다.

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미술교육에 있어서 시각적 미디어를 통한 조형교육에 관한 연구 (Visual Media Education in Visual Arts Education)

  • 박지숙
    • 조형예술학연구
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    • 제7권
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    • pp.64-104
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    • 2005
  • Visual media transmits image and information reproduced in large quantities, such as a photography, film, television, video, advertisement, or computer image. Correspondence to the students' reception and recognition of culture in the future. arrangements for the field of studies of visual culture. 'Visual Culture' implies cultural phenomena of visual images via visual media, which includes not only the categories of traditional arts like a painting, sculpture, print, or design, but the performance arts including a fashion show or parade of carnival, and the mass and electronic media like a photography, film, television, video, advertisement, cartoon, animation, or computer image. In the world of visual media, Image' functions as an essential medium of communication. Therefore, people call the culture of today fra of Image Culture', which has been converted from an alphabet convergence era to an image convergence one. Image, via visual media, has become a dominant means for communication in large part of human life, so we can designate an Image' as a typical aspect of visual culture today. Image, as an essential medium of communication, plays an important role in contemporary society. The one way is the conversion of analogue image like an actual picture, photograph, or film into digital one through the digitalization of digital camera or scanner as 'an analogue/digital commutator'. The other is a way of process with a computer drawing, or modeling of objects. It is appropriate to the production of pictorial and surreal images. Digital images, produced by the other, can be divided into the form of Pixel' and form of Vector'. Vector is a line linking the point of departure to the point of end, which organizes informations. Computer stores each line's standard location and correlative locations to one another Digital image shows for more 'Perfectness' than any other visual media. Digital image has been evolving in the diverse aspects, such as a production of geometrical or organic image compositing, interactive art, multimedia art, or web art, which has been applied a computer as an extended trot of painting. Someone often interprets digitalized copy with endless reproduction of original even as an extension of a print. Visual af is no longer a simple activity of representation by a painter or sculptor, but now is intimately associated with a matter of application of media. There is some problem in images via visual media. First, the image via media doesn't reflect a reality as it is, but reflects an artificial manipulated world, that is, a virtual reality. Second, the introduction of digital effect and the development of image processing technology have enhanced a spectacle of destructive and violent scenes. Third, a child intends to recognize the interactive images of computer game and virtual reality as a reality, or truth. Education needs not only to point out an ill effect of mass media and prevent the younger generation from being damaged by it, but also to offer a knowledge and know-how to cope actively with social, cultural circumstances. Visual media education is one of these essential methods for the contemporary and future human being in the overflowing of image informations. The fosterage of 'Visual Literacy' can be considered as a very purpose of visual media education. This is a way to lead an individual to the discerning, active consumer and producer of visual media in life as far as possible. The elements of 'Visual Literacy' can be divided into a faculty of recognition related to the visual media, a faculty of critical reception, a faculty of appropriate application, a faculty of active work and a faculty of creative modeling, which are promoted at the same time by the education of 'visual literacy'. In conclusion, the education of 'Visual Literacy' guides students to comprehend and discriminate the visual image media carefully, or receive them critically, apply them properly, or produce them creatively and voluntarily. Moreover, it leads to an artistic activity by means of new media. This education can be approached and enhanced by the connection and integration with real life. Visual arts and education of them play an important role in the digital era depended on visual communications via image information. Visual me야a of day functions as an essential element both in daily life and in arts. Students can soundly understand visual phenomena of today by means of visual media, and apply it as an expression tool of life culture as well. A new recognition and valuation visual image and media education is required to cultivate the capability of active, upright dealing with the changes of history of civilization. 1) Visual media education helps to cultivate a sensibility for images, which reacts to and deals with the circumstances. 2) It helps students to comprehend the contemporary arts and culture via new media. 3) It supplies a chance of students' experiencing a visual modeling by means of new media. 4) There are educational opportunities of images with temporality and spaciality, and therefore a discerning person becomes to increase. 5) The modeling activity via new media leads students to be continuously interested in the school and production of plastic arts. 6) It raises the ability of visual communications dealing with image information society. 7) An education of digital image is significant in respect of cultivation of man of talent for the future society of image information as well. To correspond to the changing and developing social, cultural circumstances, and the form and recognition of students' reception of them, visual arts education must arrange the field of studying on a new visual culture. Besides, a program needs to be developed, which is in more systematic and active level in relation to visual media education. Educational contents should be extended to the media for visual images, that is, photography, film, television, video, computer graphic, animation, music video, computer game and multimedia. Every media must be separately approached, because they maintain the modes and peculiarities of their own according to the conveyance form of message. The concrete and systematic method of teaching and the quality of education must be researched and developed, centering around the development of a course of study. Teacher's foundational capability of teaching should be cultivated for the visual media education. In this case, it must be paid attention to the fact that a technological level of media is considered as a secondary. Because school education doesn't intend to train expert and skillful producers, but intends to lay stress on the essential aesthetic one with visual media under the social and cultural context, in respect of a consumer including a man of culture.

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PET/CT 영상에서 조영제를 사용하지 않은 CT와 조영제를 사용한 CT를 이용한 감쇠보정에 따른 표준화섭취계수의 비교 (A Comparative Study of the Standard Uptake Values of the PET Reconstruction Methods; Using Contrast Enhanced CT and Non Contrast Enhanced CT)

  • 이승재;박훈희;안샤론;오신현;남궁혁;임한상;김재삼;이창호
    • 핵의학기술
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    • 제12권3호
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    • pp.235-240
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    • 2008
  • PET/CT 검사의 사용 초기에 CT는 주로 감쇠보정(Attenuation Correction: AC)의 목적으로 사용되어졌지만, CT의 성능이 향상됨으로써 조영제를 이용한 CT검사를 진단에 반영하여 보다 진보된 진단적 가치를 가질 수 있게 되었다. 조영제의 사용이 없이도 CT를 판독할 수 있지만 병변의 정확한 범위를 확인하고 정상 구조물을 구별하는데 있어서 조영제의 사용은 판독자로 하여금 판독을 매우 용이하게 하는 도움을 줄 수 있다. 하지만, 그동안 PET/CT검사 시 조영제가 감쇠보정에 영향을 줄 수 있다는 논쟁으로 이견이 많았다. 40-140 keV 정도의 낮은 엑스선을 이용하는 CT영상에 비하여, 조영제를 사용한 CT영상에서는 조영제로 인해 감쇠가 많이 되지만 511 keV의 에너지를 가진 감마선은 조영제로 인해 거의 영향을 받지 않게 되고 이로 인해 감쇠보정 시 과보정을 하게 되어 PET영상에서 오류를 나타낼 수 있다는 의견이 보고되기도 하였다. 이와는 반대로 조영제가 감쇠보정에 과대평가를 가져올 수 있다는 의견과 과보정으로 인한 표준화섭취계수에 변화의 가능성은 있으나 결정적인 영향을 미치지 않는다는 의견도 제시되었다. 본 연구에서는 조영제의 영향이 SUV에 어떠한 영향을 미치는지에 대해서만 비교 평가하였다. 2007년 12월에서 2008년 6월 사이에 본원에서 PET/CT 검사를 시행한 환자 중 요오드 조영제에 대한 부작용이 없고 당뇨병이 없는 진행성 암 환자 30명을 대상으로 하였으며, DSTe (General Electric Healthcare, Milwaukee, MI, USA)를 사용하여, 각각의 환자는 조영제를 사용하지 않은 CT를 시행한 후 PET영상을 얻었고 그 후, 조영제를 사용한 CT검사를 하였다. 각각의 CT정보로 감쇠보정을 실시, 종류별로 PET영상을 획득하여, 각 영상에 동일한 관심영역(Region of Interests : ROIs)을 설정 후, SUV를 비교 하였다. 얻어진 두 가지 결과 값의 정량 분석의 비교를 위해서 대응표본 T-검정 (Paired t-test)을 사용하였다. 검사를 시행한 30명의 환자에게서 폐, 간, 심장의 $SUV_{max}$ 값과 $SUV_{mean}$값을 측정하여 총 180개 영역을 분석하였다. 조영제를 사용하기 전과 후를 비교하였을 때, 측정한 거의 모든 영역에서 조영 후의 $SUV_{max}$$SUV_{mean}$가 상승하였고 통계적으로도 유의한 것으로 나타났다(p value<0.05). 심장 영역에서 조영 전 보다 조영 후의 $SUV_{mean}$값이 증가된 것으로 나타났지만, 통계적으로 유의하게 나타나지는 않았다. 조영제를 사용한 CT영상의 SUV값이 과보정되어, 조영제를 사용하지 않은 CT의 SUV 보다 높게 나왔으나 기존의 보고된 논문에서는 이와 같은 결과는 실제 임상 판독에 있어서 큰 영향을 미치지 않는다고 보고되어 있다. 그러나 원발성병변의 진행을 알아보는 과정에서는 SUV의 작은 변동도 분명 영향을 줄 수 있으므로 간 영역과 같이 SUV의 변동이 다른 영역에 비해 상대적으로 큰 영역에서는 수치의 변화에 대한 주의가 요구 될 것으로 사료된다.

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전주지역 학교급식 조리종사자의 위생지식 및 위생관리 수행에 관한 연구 (A Study on the Investigation of Sanitary Knowledge and Practice Level of School Foodservice Employees in Jeonju)

  • 한은희;양향숙;손희숙;노정옥
    • 한국식품영양과학회지
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    • 제34권8호
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    • pp.1210-1218
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    • 2005
  • 본 연구는 전주시 학교급식 조리종사자에 대한 위생교육 현황 및 실태를 파악하고자 시도되었다. 이를 위해 전주시 초$\cdot$$\cdot$고 급식학교 88개교의 조리종사자 508명을 대상으로 2002년 11월 13일부터 11월 28일까지 설문조사를 실시하였으며, 수집된 자료는 SPSS 10.0을 이용하여 통계 처리하였다. 분석결과는 다음과 같다. 조리종사자의 연령층은 41세 $\∼$50세가 62.2$\%$로 많았고, 84.4$\%$가 임시직으로 근무하고 있었으며 학교급식 경력은 10년 미만이 33.7$\%$로 가장 높게 나타났다. 학력은 고등학교 졸업이 52.4$\%$로 가장 높았고 54.1$\%$가 조리사 자격증을 소지하고 있었다. 위생교육 경험은 84.0$\%$가 월1회 이상 교육을 받고 있었으며 82.8$\%$가 교육받은 내용을 작업 시 적용하는 것으로 조사되었다. 조리종사자의 위생지식평가 결과는 개인위생관리영역에서 정답율(91.1$\%$)이 가장 높았으나 생산단계별영역은 75.3%으로 가장 낮았다 조리종사자의 인적특성이 위생지식에 미치는 영향을 분석한 결과, 연령과 학력은 위생지식 전체영역에서 유의적인 차이가 있었으며(p<0.01),특히 생산단계별 위생영역에서 높은 점수를 나타내었다. 경력은 기기설비위생영역에서 유의적인 차이를 나타내었고(p<0.05), 5년 미만의 그룹이 높은 점수를 나타내었다. 또한 자격증 소지여부도 위생지식 전체영역에 유의적인 영향을 주었으며(p<0.05), 생산단계별위생영역에서 자격증을 소지한 집단이 유의적으로(p<0.01) 높은 점수를 나타내었다. 조리종사자 위생관리수행수준 평가결과 기기설비위생(4.90/5점 ), 식중독 및 미생물(4.86/5점), 개인위생(4.79/5점), 생산단계별위생(4.70/5점) 순으로 높게 평가되었다. 조리종사자의 인적특성이 위생관리 수행수준에 미치는 영향을 분석한 결과, 고용상태는 개인위생(p<0.05)에서 유의적인 차이를 나타냈으며 경력은 기기설비위생(p<0.05)에서 유의적인 차이를 보였다. 학력은 위생관리 수행수준의 생산단계별위생(p<0.05), 기기설비위생(p<0.01)등 위생관리 수행수준 전체영역에서 유의적인 차이를 나타냈다. 위생교육 횟수는 위생관리 수행수준의 생산단계별위생(P<0.01), 식중독 및 미생물(P<0.05) 및 위생관리 수행수준 전체영역(p<0.01)에서 유의적인 차이를 보였다. 근무학교별로 조리종사자의 위생지식과 위생관리 수행수준을 조사한 결과, 위생지식에 있어서는 중학교에 근무하는 조리 종사자가 개인위생에서 유의적으로 낮은 점수를 나타내었고(p<0.01), 생산단계별위생에서는 초등학교 조리종사자가 유의적으로 높은 점수를 나타내었다(p<0.01). 위생관리수행수준에 있어서는 개인위생(p<0.01)과 기기설비위생(p<0.01)에서 유의적인 차이가 있었으며, 초등학교 조리종사자의 기기설비위생 점수가 유의적으로 높은 점수를 나타내었다. 조리종사자의 위생지식 점수와 위생관리 수행수준의 상관관계를 조사한 결과, 위생지식의 기기설비위생은 위생관리 수행수준의 합계(p<0.01)에서 유의적인 상관관계(p<0.01)를 나타내었으며, 위생지식의 식중독 및 미생물은 위생관리 수행수준의 개인위생(p<0.01)과 유의적인 상관관계가 있는 것으로 나타났다 위생지식의 점수합계는 개인위생(p<0.05)과 식중독 및 미생물(p<0.05)과 유의적인 상관관계가 있는 것으로 조사되었다. 조리종사자의 위생지식이 위생관리 수행수준간에 미치는 영향을 분석한 결과, 위생관리 수행수준의 합계가 위생지식의 기기설비위생과 유의적인 상관관계를 나타내었지만(p<0.001), 설명율은 2.4$\%$로 매우 낮아 거의 영향력이 없는 것으로 조사되었다. 이상의 연구결과에서 학교급식 조리종사자의 위생관리 수행수준을 향상시키기 위해서는 시행되고 있는 위생교육이 전체적인 위생습관의 변화를 수반하지 않고 지식의 전달에만 그치고 있으며 내용면에 있어서도 편중된 교육이 행해지고 있는 것으로 조사되었다. 따라서 조리종사자의 연령 및 교육수준, 근무경력 등을 고려한 실제적인 위생교육 내용을 구성할 필요성이 매우 높은 것으로 보인다. 특히 조리종사자의 위생지식 평가결과, 식중독 및 미생물 영역의 점수가 매우 낮아 위생지식 개념부족으로 인한 식중독 발생의 우려가 높으므로 이 부분에 대한 집중적인 교육 및 훈련이 지속적으로 필요하리라 생각된다.

GEMINI PET/CT의 X-ray CT, $^{137}Cs$ 기반 511 keV 광자 감쇠계수의 정량적 차이 (Quantitative Differences between X-Ray CT-Based and $^{137}Cs$-Based Attenuation Correction in Philips Gemini PET/CT)

  • 김진수;이재성;이동수;박은경;김종효;김재일;이홍재;정준기;이명철
    • 대한핵의학회지
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    • 제39권3호
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    • pp.182-190
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    • 2005
  • 목적: CT기반 감쇠보정 영상의 표준섭취계수(Standard Uptake Value:SUV)가 $^{137}Cs$ 기반 감쇠보정 영상의 SUV보다 높다. 이 연구에서는 이러한 오차가 생기는 원인을 밝히고자 감쇠계수가 정확하게 변환되었는지 여부를 관심영역 분석을 통하여 평가하였다. 대상 및 방법: Philips GEMINI PET/CT는 X-ray CT (평균 40 keV) 혹은 $^{137}Cs$ (662 keV) 투과영상을 감쇠보정에 이용하는데 GEMINI PET/CT에서 사용하는 각각 선원의 에너지는 511 keV에서 얻은 감쇠계수와 틀리기 때문에 스캐너 내부에 장착된 감쇠계수 변환 알고리즘을 이용하여 511 keV에 해당하는 감쇠계수 값으로 변환된 감쇠지도를 사용하므로 감쇠계수의 변환이 정확하게 이루어졌는지 평가하는 것이 중요하다. 각각의 실험과정은 다음과 같다. 먼저 시스템 성능평가 팬텀 CT 투과 영상을 사용하여 Hounsfield units (HU)값을 측정하였다. 다음으로 NEMA 타원형 ECT 팬텀의 CT, $^{137}Cs$ 투과영상을 얻어 $^{68}Ge$ 투과선원을 장착한 Siemens ECAT EXACT 47 PET 스캐너에서 얻은 팬텀 투과 영상과 비교하여 감쇠계수가 511 keV에 해당하는 감쇠계수로 잘 변환되었는지 측정하였고 Gammex 467 electron density CT 팬텀의 CT, $^{137}Cs$ 투과영상에서 관심영역 분석을 하여 다양한 전자밀도 값에 대한 감쇠계수 변환의 정확성을 평가하였다. 또, 재구성한 영상에 미치는 영향을 평가하기 위하여 정상 및 병적 조직에서 CT, $^{137}Cs$ 기반 감쇠계수와 표준섭취계수를 비교하였다. 결과: CT에서 측정한 HU는 신뢰할 수 있는 값임을 확인하였으나 전자밀도와 원자번호가 큰 영역에서 CT 기반 감쇠계수에 오차가 있었는데 NEMA 타원형 ECT 팬텀 실험결과에 의하면 뼈 영역에서 오차는 11%이었다. 임상데이터에서도 마찬가지로 CT를 이용하여 얻은 감쇠계수가 $^{137}Cs$을 이용하여 얻은 감쇠계수보다 낮았고 전자밀도와 원자번호가 큰 영역에서 오차가 컸다. 그러나, 표준섭취계수는 $^{137}Cs$를 사용하여 감쇠보정을 한 영상의 값이 CT를 이용하여 감쇠보정을 한 값보다 오히려 낮았고 표준섭취계수의 백분율 차이는 $6.6{\sim}52.7%$이었다. 결론: CT의 HU가 정확함에도 불구하고 뼈 영역에서 CT 투과영상을 기반으로 한 감쇠계수의 변환이 부정확하고 CT 및 $^{137}Cs$ 투과영상을 기반으로 얻은 표준 섭취계수에 차이가 있으므로 이에 관한 추가적인 연구가 필요할 것으로 생각한다.

텍스트 마이닝 기법을 활용한 인공지능 기술개발 동향 분석 연구: 깃허브 상의 오픈 소스 소프트웨어 프로젝트를 대상으로 (A Study on the Development Trend of Artificial Intelligence Using Text Mining Technique: Focused on Open Source Software Projects on Github)

  • 정지선;김동성;이홍주;김종우
    • 지능정보연구
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    • 제25권1호
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    • pp.1-19
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    • 2019
  • 제4차 산업혁명을 이끄는 주요 원동력 중 하나인 인공지능 기술은 이미지와 음성 인식 등 여러 분야에서 사람과 유사하거나 더 뛰어난 능력을 보이며, 사회 전반에 미치게 될 다양한 영향력으로 인하여 높은 주목을 받고 있다. 특히, 인공지능 기술은 의료, 금융, 제조, 서비스, 교육 등 광범위한 분야에서 활용이 가능하기 때문에, 현재의 기술 동향을 파악하고 발전 방향을 분석하기 위한 노력들 또한 활발히 이루어지고 있다. 한편, 이러한 인공지능 기술의 급속한 발전 배경에는 학습, 추론, 인식 등의 복잡한 인공지능 알고리즘을 개발할 수 있는 주요 플랫폼들이 오픈 소스로 공개되면서, 이를 활용한 기술과 서비스들의 개발이 비약적으로 증가하고 있는 것이 주요 요인 중 하나로 확인된다. 또한, 주요 글로벌 기업들이 개발한 자연어 인식, 음성 인식, 이미지 인식 기능 등의 인공지능 소프트웨어들이 오픈 소스 소프트웨어(OSS: Open Sources Software)로 무료로 공개되면서 기술확산에 크게 기여하고 있다. 이에 따라, 본 연구에서는 온라인상에서 다수의 협업을 통하여 개발이 이루어지고 있는 인공지능과 관련된 주요 오픈 소스 소프트웨어 프로젝트들을 분석하여, 인공지능 기술 개발 현황에 대한 보다 실질적인 동향을 파악하고자 한다. 이를 위하여 깃허브(Github) 상에서 2000년부터 2018년 7월까지 생성된 인공지능과 관련된 주요 프로젝트들의 목록을 검색 및 수집하였으며, 수집 된 프로젝트들의 특징과 기술 분야를 의미하는 토픽 정보들을 대상으로 텍스트 마이닝 기법을 적용하여 주요 기술들의 개발 동향을 연도별로 상세하게 확인하였다. 분석 결과, 인공지능과 관련된 오픈 소스 소프트웨어들은 2016년을 기준으로 급격하게 증가하는 추세이며, 토픽들의 관계 분석을 통하여 주요 기술 동향이 '알고리즘', '프로그래밍 언어', '응용분야', '개발 도구'의 범주로 구분하는 것이 가능함을 확인하였다. 이러한 분석 결과를 바탕으로, 향후 다양한 분야에서의 활용을 위해 개발되고 있는 인공지능 관련 기술들을 보다 상세하게 구분하여 확인하는 것이 가능할 것이며, 효과적인 발전 방향 모색과 변화 추이 분석에 활용이 가능할 것이다.

일본 '고증파(考證派)' 의학에 관한 연구 (A Study on The 'Kao Zheng Pai'(考證派) of The Traditional Medicine of Japan)

  • 박현국;김기욱
    • 대한한의학원전학회지
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    • 제20권4호
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    • pp.211-250
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    • 2007
  • 1. The 'Kao Zheng Pai(考證派) comes from the 'Zhe Zhong Pai' and is a school that is influenced by the confucianism of the Qing dynasty. In Japan Inoue Kinga(井上金娥), Yoshida Koton(吉田篁墩) became central members, and the rise of the methodology of historical research(考證學) influenced the members of the 'Zhe Zhong Pai', and the trend of historical research changed from confucianism to medicine, making a school of medicine based on the study of texts and proving that the classics were right. 2. Based on the function of 'Nei Qu Li '(內驅力) the 'Kao Zheng Pai', in the spirit of 'use confucianism as the base', researched letters, meanings and historical origins. Because they were influenced by the methodology of historical research(考證學) of the Qing era, they valued the evidential research of classic texts, and there was even one branch that did only historical research, the 'Rue Xue Kao Zheng Pai'(儒學考證派). Also, the 'Yi Xue Kao Zheng Pai'(醫學考證派) appeared by the influence of Yoshida Kouton and Kariya Ekisai(狩谷掖齋). 3. In the 'Kao Zheng Pai(考證派)'s theories and views the 'Yi Xue Kao Zheng Pai' did not look at medical scriptures like the "Huang Di Nei Jing"("黃帝內經") and did not do research on 'medical' related areas like acupuncture, the meridian and medicinal herbs. Since they were doctors that used medicine, they naturally were based on 'formulas'(方劑) and since their thoughts were based on the historical ideologies, they valued the "Shang Han Ja Bing Lun" which was revered as the 'ancestor of all formulas'(衆方之祖). 4. The lives of the important doctors of the 'Kao Zheng Pai' Meguro Dotaku(目黑道琢) Yamada Seichin(山田正珍), Yamada Kyoko(山田業廣), Mori Ritsi(森立之) Kitamura Naohara(喜多村直寬) are as follows. 1) Meguro Dotaku(目黑道琢 1739${\sim}$1798) was born of lowly descent but, using his intelligence and knowledge, became a professor as a Shi Jing Yi(市井醫) and as a professor for 34 years at Ji Shou Guan mastered the "Huang Di Nei Jing" after giving over 300 lectures. Since his pupil, Isawara Ken taught the Lan Men Wu Zhe(蘭門五哲) and Shibue Chusai, Mori Ritsi(森立之), Okanishi Gentei(岡西玄亭), Kiyokawa Gendoh(淸川玄道) and Yamada Kyoko(山田業廣), Meguro Dotaku is considered the founder of the 'Yi Xue Kao Zheng Pai'. 2) The family of Yamada Seichin(山田正珍 1749${\sim}$1787) had been medical officials in the Makufu(幕府) and the many books that his ancestors had left were the base of his art. Seichin learned from Shan Ben Bei Shan(山本北山), a 'Zhe Zhong Pai' scholar, and put his efforts into learning, teaching and researching the "Shang Han Lun"("傷寒論"). Living in a time between 'Gu Fang Pai'(古方派) member Nakanishi Goretada(中西惟忠) and 'Kao Zheng Pai' member Taki Motohiro(多紀元簡), he wrote 11 books, 2 of which express his thoughts and research clearly, the "Shang Han Lun Ji Cheng"("傷寒論集成") and "Shang Han Kao"("傷寒考"). His comparison of the 'six meridians'(3 yin, 3 yang) between the "Shang Han Lun" and the "Su Wen Re Lun"("素問 熱論) and his acknowledgement of the need and rationality of the concept of Yin-Yang and Deficient-Replete distinguishes him from the other 'Gu Fang Pai'. Also, his dissertation of the need for the concept doesn't use the theories of latter schools but uses the theory of the "Shang Han Lun" itself. He even researched the historical parts, such as terms like 'Shen Nong Chang Bai Cao'(神農嘗百草) and 'Cheng Qi Tang'(承氣湯) 3) The ancestor of Yamada Kyoko(山田業廣) was a court physician, and learned confucianism from Kao Zheng Pai 's Ashikawa Genan(朝川善庵) and medicine from Isawa Ranken and Taki Motokata(多紀元堅), and the secret to smallpox from Ikeda Keisui(池田京水). He later became a lecturer at the Edo Yi Xue Guan(醫學館) and was invited as the director to the Ji Zhong(濟衆) hospital. He also became the first owner of the Wen Zhi She(溫知社), whose main purpose was the revival of kampo, and launched the monthly magazine Wen Zi Yi Tan(溫知醫談). He also diagnosed and prescribed for the prince Ming Gong(明宮). His works include the "Jing Fang Bian"("經方辨"), "Shang Han Lun Si Ci"("傷寒論釋司"), "Huang Zhao Zhu Jia Zhi Yan Ji Yao"("皇朝諸家治驗集要") and "Shang Han Ja Bing Lun Lei Juan"("傷寒雜病論類纂"). of these, the "Jing Fang Bian"("經方辨") states that the Shi Gao(石膏) used in the "Shang Han Lun" had three meanings-Fa Biao(發表), Qing Re(淸熱), Zi Yin(滋陰)-which were from 'symptoms', and first deducted the effects and then told of the reason. Another book, the "Jiu Zhe Tang Du Shu Ji"("九折堂讀書記") researched and translated the difficult parts of the "Shang Han Lun", "Jin Qui Yao Lue", "Qian Jin Fang"("千金方"), and "Wai Tai Mi Yao"("外臺秘要"). He usually analyzed the 'symptoms' of diseases but the composition, measurement, processing and application of medicine were all in the spectrum of 'analystic research' and 'researching analysis'. 4) The ancestors of Mori Rits(森立之 1807${\sim}$ 1885) were warriors but he became a doctor by the will of his mother, and he learned from Shibue Chosai(澁江抽齋) and Isawaran Ken and later became a pupil of Shou Gu Yi Zhai, a historical research scholar. He then became a lecturer of medical herbs at the Yi Xue Guan, and later participated in the proofreading of "Yi Xin Fang"("醫心方") and with Chosai compiled the "Jing Ji Fang Gu Zhi"("神農本草經"). He visited the Chinese scholar Yang Shou Jing(楊守敬) in 1881 and exchanged books and ideas. Of his works, there are the collections(輯複本) of "Shen Nong Ben Cao Jing"(神農本草經) and "You Xiang Yi Hwa"("遊相醫話") and the records, notes, poems, and diaries such as "Zhi Yuan Man Lu"("枳園漫錄") and "Zhi Yuan Sui Bi"("枳園隨筆") that were not published. His thoughts were that in restoring the "Shen Nong Ben Cao Jing", "the herb to the doctor is like the "Shuo Wen Jie Zi"("說文解字") to the scholar", and he tried to restore the ancient herbal text using knowledge of medicine and investigation(考據). Also with Chosai he compiled the "Jing Ji Fang Gu Zhi"("經籍訪古志") using knowledge of ancient text. Ritzi left works on pure investigation, paid much attention to social problems, and through 12 years of poverty treated all people and animals in all branches of medicine, so he is called a 'half confucianist half doctor'(半儒半醫). 5) Kitamurana Ohira(喜多村直寬 1804${\sim}$1876) learned scriptures and ancient texts from confucian scholar Asaka Gonsai, and learned medicine from his father Huai Yaun(槐園). He became a teacher in the Yi Xue Guan in his middle ages, and to repay his country, he printed 266 volumes of "Yi Fang Lei Ju("醫方類聚") and 1000 volumes of "Tai Ping Yu Lan"("太平禦覽") and devoted it to his country to be spread. His works are about 40 volumes including "Jin Qui Yao Lue Shu Yi" and "Lao Yi Zhi Yan" but most of them are researches on the "Shang Han Za Bing Lun". In his "Shang Han Lun Shu Yi"("傷寒論疏義") he shows the concept of the six meridians through the Yin-Yang, Superficial or internal, cold or hot, deficient or replete state of diseases, but did not match the names with the six meridians of the meridian theory, and this has something in common with the research based on the confucianism of Song(宋儒). In clinical treatment he was positive toward old and new methods and also the experience of civilians, but was negative toward western medicine. 6) The ancestor of the Taki family Tanbano Yasuyori(丹波康賴 912-955) became a Yi Bo Shi(醫博士) by his medical skills and compiled the "Yi Xin Fang"("醫心方"). His first son Tanbano Shigeaki(丹波重明) inherited the Shi Yao Yuan(施藥院) and the third son Tanbano Masatada(丹波雅忠) inherited the Dian You Tou(典藥頭). Masatada's descendents succeeded him for 25 generations until the family name was changed to Jin Bao(金保) and five generations later it was changed again to Duo Ji(多紀). The research scholar Taki Motohiro was in the third generation after the last name was changed to Taki, and his family kept an important part in the line of medical officers in Japan. Taki Motohiro(多紀元簡 1755-1810) was a teacher in the Yi Xue Guan where his father was residing, and became the physician for the general Jia Qi(家齊). He had a short temper and was not good at getting on in the world, and went against the will of the king and was banished from Ao Yi Shi(奧醫師). His most famous works, the "Shang Han Lun Ji Yi" and "Jin Qui Yao Lue Ji Yi" are the work of 20 years of collecting the theories of many schools and discussing, and is one of the most famous books on the "Shang Han Lun" in Japan. "Yi Sheng" is a collection of essays on research. Also there are the "Su Wen Shi"("素問識"), "Ling Shu Shi"("靈樞識"), and the "Guan lu Fang Yao Bu"("觀聚方要補"). Taki Motohiro(多紀元簡)'s position was succeeded by his third son Yuan Yin(元胤 1789-1827), and his works include works of research such as "Nan Jing Shu Jeng"("難經疏證"), "Ti Ya"("體雅"), "Yao Ya"("藥雅"), "Ji Ya"("疾雅"), "Ming Yi Gong An"("名醫公案"), and "Yi Ji Kao"("醫籍考"). The "Yi Ji Kao" is 80 volumes in length and lists about 3000 books on medicine in China before the Qing Dao Guang(道光), and under each title are the origin, number of volumes, state of existence, and, if possible, the preface, Ba Yu(跋語) and biography of the author. The younger sibling of Yuan Yin(元胤 1789-1827), Yuan Jian(元堅 1795-1857) expounded ancient writings at the Yi Xue Guan only after he reached middle age, was chosen for the Ao Yi Shi(奧醫師) and later became a Fa Yan(法眼), Fa Yin(法印) and Yu Chi(樂匙). He left about 15 texts, including "Su Wen Shao Shi"("素間紹識"), "Yi Xin Fang"("醫心方"), published in school, "Za Bing Guang Yao"("雜病廣要"), "Shang Han Guang Yao"(傷寒廣要), and "Zhen Fu Yao Jue"("該腹要訣"). On the Taki family's founding and working of the Yi Xue Guan Yasuka Doumei(失數道明) said they were "the people who took the initiative in Edo era kampo medicine" and evaluated their deeds in the fields of 'research of ancient text', 'the founding of Ji Shou Guan and medical education', 'publication business', 'writing of medical text'. 5. The doctors of the 'Kao Zheng Pai ' based their operations on the Edo Yi Xue Guan, and made groups with people with similar ideas to them, making a relationship 'net'. For example the three families of Duo Ji(多紀), Tang Chuan(湯川) and Xi Duo Cun(喜多村) married and adopted with and from each other and made prefaces and epitaphs for each other. Thus, the Taki family, the state science of the Makufu, the tendency of thinking, one's own interests and glory, one's own knowledge, the need of the society all played a role in the development of kampo medicine in the 18th and 19th century.

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