• Macromolecular Research
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• 제14권5호
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• pp.499-503
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• 2006

This report presents a new technical approach for evaluating the fiber orientation of composites using small-angle light scattering (SALS). Glass fiber (GF)/polypropylene (PP) composites with different fiber orientations were prepared by drawing compression-molded specimens. The drawn samples were remelted and then annealed at $150^{\circ}C$ in order to induce a crystalline structure on the fiber surface, and then underwent SALS analysis. The samples showed a combination of circular and streak patterns. The model calculations demonstrated that the number of nuclei on the fiber surface and the thickness of the transcrystalline layer affected the sharpness and intensity of the streak pattern. In addition, the azimuthal angle of the streak pattern was found to be dependent on the direction of the transcrystalline layer, which correlated with the fiber direction. This correlation suggests that the fiber orientation in the composites can be easily evaluated using SALS.

• 한국언론정보학보
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• 제30권
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• pp.143-174
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• 2005

매체 기술의 발달에 따라 뉴스전달의 흐름이 일방향에서 쌍방향으로, 뉴스 수용자가 적극적인 이용자로 새로이 자리매김 해가는 추세다. 이러한 상황 인식을 바탕으로 본 연구는 온라인 뉴스 제공자로서의 포털 뉴스 사이트와 뉴스 소비자로서의 네티즌이 상호 어떤 인식을 갖고 있는지 탐구하는 데에 그 목적을 두었다. 이를 위해 포털 뉴스의 매체적인 특성을 쌍방향상으로 인한 적극적 이용자 부상, 뉴스 제공자와 시민기자로의 확장, 선택권의 확대(이용자 특성), 컨텐츠 업데이트, 컨텐츠 분량의 무제한성, 하이퍼텍스트성, 컨텐츠 보존성, 멀티미디어 컨텐츠 제공(컨텐츠 특성) 등 8가지를 추출하고 그에 대한 이용자와 사용자간 상호인식을 채피와 맥리오드의 상호지향성 모형을 적용해 알아보았다. 연구결과 이용자 특성에 관한 문항은 부분 일치로, 서로 일치하는 인식에 대해 이용자들이 오해를 하고 있었던 반면, 컨텐츠 특성 항목에서는 대부분의 문항에서 제공자가 더 긍정적인 인식을 갖고 있는 것으로 나타났다. 이는 포털을 통한 뉴스전달방식에 대해 제공자와 이용자가 아직 상호 지향되지 않고 있으며, 이는 새로운 매체실험에 따른 역동성의 결과로서 향후 상호지향을 위한 커뮤니케이션의 증대를 시사한다.

• 디지털융복합연구
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• 제19권2호
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• pp.83-92
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• 2021

코로나19로 인한 '사회적 거리 두기' 확산에 따라 비대면 근무가 불가피하게 시행되고 있는데, 실효성에 대한 논란이 있어 구성원의 인식을 살펴볼 필요가 있다. 본 연구는 비대면 근무에 관한 기존 문헌 검토 후 쟁점들을 도출하고, 비대면 근무를 경험한 근로자와 관리자를 대상으로 심층 면담을 실시하여 정성적으로 내용을 분석하고, 상호지향성 모델을 적용하여 비교하였다. 두 집단 공통으로 '소통의 어려움'을 가장 많이 지적하였고, 직무만족, 소속감, 일과 삶의 균형 등에 대한 근로자와 관리자의 인식 차이는 발견하지 못했으나, 인사고과 시 불이익에 대해 인식(객관적 일치도, 근로자의 정확도)의 차이를 보였고, 업무 생산성에 대한 인식(근로자의 주관적 일치도)에서도 차이를 보였다. 기존 연구는 비대면 근무의 일반적인 쟁점들을 논의하였지만, 본 연구는 근로자와 관리자의 인식 차이에 초점을 맞추어 조사하고 인식 차이를 완화시킬 방안의 필요성을 제기한 점에 의의가 있으며, 향후 더 많은 근로자와 관리자를 대상으로 하는 정량적 연구로 확장할 필요가 있다.

• Asia Marketing Journal
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• 제15권2호
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• pp.175-194
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• 2013

The purpose of this study is to investigate the effects of the locomotion orientation on salespeople' sales performance with the mediating effect of selling behavior(adaptive selling behavior, SOCO). And we figure out the relationship between customer-oriented selling behavior and adaptive selling behavior because those relationships are not clear. The authors infer research hypotheses based on literature review. We have confirmed the reliability and validity test and those results can be acceptable. Hypotheses test were conducted with structural equation modeling, AMOS. All paths in the research model reasoned by authors have been supported statistically at the significant level. This study with the theoretical implications is as follows. First, this study is the first attempt to investigate the path between locomotion orientation and adaptive selling behavior and SOCO. Secondly, there is an empirical conflict between our study and Franke and Park(2006)'s study. Our study was contradictory to Franke and Park(2006)'s consequences. And so, figuring out clearly those causal paths remains. This study with practical implications are as follows. First of all, the salespeople' selling performance was affected by adaptive selling behavior, customer-oriented selling behavior, and sales-oriented activities, such as the importance of selling behavior once again proven. It is necessary to enhance the capabilities that can be transformed into action appropriate to the needs of customers each sales step-by-step in the process of salespeople for various system through education and incentives, and to interact with customers and understand their customers relative to salespeople will. In order to enhance adaptive selling behavior, the company needs to do educational program and monitoring system with the positional promotion when salespeople get the high adaptive selling behavior. Secondly, the locomotion orientation of the salespeople is to cause this selling behavior. Management style to increase locomotion orientation is needed, which means, salespeople' superior about something should be conducted. In order to stimulate the selling behavior of the salespeople, most supervisors should use some managerial tools such as feedback, engagement, and rewards.

• 천문학회보
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• 제36권1호
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• pp.27.2-27.2
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• 2011

The Kepler(NASA) and CoRoT(ESA) space telescopes are surveying thousands of exoplanet for finding Earth-like exoplanets with similar environments of the Earth. Then the TPF(NASA), DARWIN(ESA) and many large-aperture ground telescopes have plan for spectroscopic observations of these earth-like exoplanets in next decades. Now, it has been started to simulate the disk averaged spectra of the earthlike exoplanets for comparing the observed spectra and suggesting solutions of environment of these planets. Previous research, the simulations are based on radiative transfer method, but these are limited by optical models of Earth system and instruments. We introduce a new simulation method, IRT(Integrated Ray Tracing) to overcome limitations of previous method. The 3 components are defined in IRT; 1)Sun model, 2)Earth system model (Atmosphere, Land and Ocean), 3)Instrument model. The ray tracing in IRT is simulated in composed 3D real scale space from inside the sun model to the detector of instrument. The Sun model has hemisphere structure with Lambertian scattering optical model. Atmosphere is composed of 16 distributed structures and each optical model includes BSDF with using 6SV radiative transfer code. Coastline and 5 kinds of vegetation distribution data are used to land model structure, and its non-Lambertian scattering optical model is defined with the semi-empirical "parametric kernel method" used for MODIS(NASA) and POLDER(CNES) missions. The ocean model includes sea ice cap structure with the monthly sea ice area variation, and sea water optical model which is considering non-lambertian sun-glint scattering. Computation of spectral imaging and radiative transfer performance of Earth system model is tested with hypothetical space instrument in IRT model. Then we calculated the disk averaged spectra of the Earth system model in IRT computation model for 8 cases; 4 viewing orientation cases with full illuminated phase, and 4 illuminated phase cases in a viewing orientation. Finally the DAS results are compared with previous researching results of radiative transfer method.

• 로봇학회논문지
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• 제15권3호
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• pp.233-239
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• 2020

The aims of this paper is to develop a modular agricultural robot and its autonomous driving algorithm that can be used in field farming. Actually, it is difficult to develop a controller for autonomous agricultural robot that transforming their dynamic characteristics by installation of machine modules. So we develop for the model based control algorithm of rotary machine connected to agricultural robot. Autonomous control algorithm of agricultural robot consists of the path control, velocity control, orientation control. To verify the developed algorithm, we used to analytical techniques that have the advantage of reducing development time and risks. The model is formulated based on the multibody dynamics methods for high accuracy. Their model parameters get from the design parameter and real constructed data. Then we developed the co-simulation that is combined between the multibody dynamics model and control model using the ADAMS and Matlab simulink programs. Using the developed model, we carried out various dynamics simulation in the several rotation speed of blades.

• Journal of Mechanical Science and Technology
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• 제14권10호
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• pp.1072-1080
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• 2000

Leakage magnetic flux (LMF) is widely used for non-contact detection of cracks. The combination of optics and LMF offers advantages such as real time inspection, elimination of electrical noise, high spatial resolution, etc. This paper describes a new nondestructive evaluation method based on an original magneto-optical inspection system, which uses a magneto-optical sensor, LMF, and an improved magnetization method. The improved magnetization method has the following characteristics: high observation sensitivity, independence of the crack orientation, and precise transcription of the geometry of a complex crack. The use of vertical magnetization enables the visualization of the length and width of a crack. The inspection system provides the images of the crack, and shows a possibility for the computation of its depth.

• 한국치위생학회지
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• 제20권1호
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• pp.107-116
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• 2020

Objectives: This study applied the co-orientation model to investigate the degree to which dental hygienists and dentists recognize the efficiency of dental hygienists' non-surgical periodontal therapy work; the basic data can be provided as a systematic arrangement that can be applied and extended to dental clinics to raise mutual understanding. Methods: Independent sample t-tests, one-way ANOVA, and paired t-tests were conducted with a total of 888 subjects (530 dental hygienists and 358 dentists) using SPSS Statistics 22.0. Results: The analysis showed that, dental hygienists had higher recognition of the efficiency of their work (p<0.001) than dentists, with respect to all items(p>0.05). With respect to subjective agreement, dental hygienists estimated lower recognition among dentists than other dental hygienists and dentists estimated higher recognition among dentists than dental hygienists. With respect to accuracy, dentists' estimation was lower than the actual recognition among dental hygienists and dental hygienists' estimation was higher than the actual recognition among dentists in all cases except the efficiency of dental hygienists' patient education work and constant learning. Conclusions: There was wide gap between dental hygienists and dentists in recognition of the efficiency of dental hygienists' non-surgical periodontal therapy work. Actions must be taken to raise mutual understanding between dental hygienists and dentists regarding dental hygienists' non-surgical periodontal therapy work, to spread this recognition throughout the dental industry, and to implement systematic support at dental clinics.

• 한국입자에어로졸학회지
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• 제9권4호
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• pp.201-208
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• 2013

Copper (II) and Nickel (II) mimic complexes of enzyme carbonic anhydrase were evaluated under ambient condition for carbon dioxide capture and conversion process. The synthesized complexes were characterized by ATR-FTIR and UV-DR spectroscopy. It was found that all the complexes have biomimetic activity towards $CO_2$ using para-nitrophenyl acetate (p-NPA) hydrolysis as the model reaction. Interestingly, the proper geometry obtained by the restricted orientation of tripodal N atoms in Cu (II) complex of 2,6-bis(2-benzimidazolyl) pyridine showed the highest activity (1.14 au) compared to others. The $CO_2$ bio-mineralization to $CaCO_3$ was carried out via in-vitro crystallization approach. Results indicate that the biomimetic complexes have a role in determining $CaCO_3$ morphology. The present observations establish a qualitative insight for the design of improved small-molecule catalysts for carbon capture.

• 한국프랜차이즈경영연구
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• 제9권2호
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• pp.17-29
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• 2018

Purpose - The environment surrounding the franchise industry in recent years is a big threat to the franchise business. In this perspective, this study examines the effect of franchise CEO's Innovation, CSR Passion, and customer orientation(CO) on customers' perceived service quality(PSQ), affection, and commitments in the context of food-service franchise industry. This study suggests the guidelines on how franchisor uses their passion and customer orientation on customer to maintain and increase the commitments. Research design, data, and methodology - In order to achieve these purposes, research model and hypotheses were developed. Out of 500 respondents received through online survey, 449 respondents were used, because of 51 incomplete respondents. The data were analyzed using frequency analysis, confirmatory factor analysis, correlation analysis, and structural equational modeling with SPSS 23.0 and AMOS 23.0 statistical program. Result - The results of the study are as follows. First, innovation passion has a significant impact on PSQ and customer affection. And CSR passion have a significant impact on PSQ. Second, customer orientation has a significant impact on PSQ and customer affection. Third, PSQ has a significant impact on customer affection and sustainable commitment. Fourth, customer affection has a significant impact on behavioral commitment. Fifth, behavioral commitment has a significant impacts on sustainable commitment. Conclusions - The implications of this study are following as: Restaurants franchisor and CEOs should have a passion for innovation to continuously identify consumer needs and develop new menus and services that meet their needs. Second, franchisor and CEOs need to demonstrate the importance of creating the right environment, creating a fair business, and trying to create products in a given environment. Finally, franchisor and CEOs should demonstrate how to build relationships with customers and how to maintain positive feelings. In addition, it is necessary to appeal to the customers with enthusiasm and a customer-oriented tendency of the entrepreneur of the franchise head office in order to maintain the relationship with the customer and feelings.