• 한국분말재료학회지
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• 제8권2호
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• pp.110-116
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• 2001

Abstract To investigate the effect of mechanical alloying process to thermoelectric properties of PbTe sintered body, Pb-Te mixed powder with Pb : Te : 1 : 1 composition was mechanically alloyed using tumbler-ball mill. Thermoelectric properties of the sintered body were evaluated by measuring of the Seebeck coefficient and specific electric resistivity from the room temperature to 50$0^{\circ}C$. Sintered body of only mechanically alloyed PbTe powder showed p-type behavior at the room temperature, and occurred type transition from p-type to n-type at about 30$0^{\circ}C$. PbTe sintered body which was fabricated using heat treated powder in $H_2$ atmosphere after mechanical alloying showed stable n-type behavior under 50$0^{\circ}C$. N-type PbTe sintered body fabricated by mechanical alloying process had 4 times higher power factor than that fabricated by the melt-crushing process. Application of a mechanical alloying process to fabricate of n-type PbTe thermoelectric material seemed to be useful to increase the power factor of PbTe sintered body.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2008년도 춘계학술발표대회 개요집
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• pp.23-23
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• 2008

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 추계학술대회
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• pp.154-156
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• 2012

This paper presents a user authentication scheme for healthcare application using wireless medical sensor networks, where wireless medical sensors are used for patients monitoring. These medical sensors' sense the patient body data and transmit it to the professionals (e.g., doctors, nurses, and surgeons). Since, the data of an individual are highly vulnerable; it must ensures that patients medical vital signs are secure, and are not exposed to an unauthorized person. In this regards, we have proposed a user1 authentication scheme for healthcare application using medical sensor networks. The proposed scheme includes: a novel two-factor professionals authentication (user authentication), where the healthcare professionals are authenticated before access the patient's body data; a secure session key is establish between the patient sensor node and the professional at the end of user authentication. Furthermore, the analysis shows that the proposed scheme is safeguard to various practical attacks and achieves efficiency at low computation cost.

• 국제물리치료학회지
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• 제7권1호
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• pp.979-988
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• 2016

The purpose of this systematic review is to investigate the effects of tape application on improving body conditions. The search strategy for this review included a literature search by members of the International Kinematic Academy in 12 countries between January 2014 and February 2015 using PubMed, CINAHL, Cochrane, Google Scholar, websites and national journals. The search words included "Kinesiotape, Kinesio tape, kinesiotaping, elastic taping, taping, functional taping, myofascial taping, sensomotor taping". The review included all articles, even those published in different languages. These searches resulted in 821 publications. There are several effects of tape application were revealed such as improving blood circulation, lymphatic circulation, body range of motion, activation of mechanoreceptor and joint stability, and decreasing pain. No one negative about the positive effects of taping, however the more effort is required to find evidence of effects of tape application.

• Fibers and Polymers
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• 제7권2호
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• pp.195-202
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• 2006

Tight-fitting clothing pattern reflecting the accurate information of the 3D body shape has been one of the challenges for garment industry, however, fitting problems still exist. The objectives of the paper is to develop a 2D pattern which fits tightly to the 3D human scan data for sports suits that need comfort and function for maximum performance. In this study, the user graphic interface application software for the semi-automatic garment pattern generation has been implemented using the triangle simplification scheme together with 2D projections of free-falling of 3D surface polygons keeping the original 3D surface area preservation. A typical application of the developed pattern to the functional body suits is presented and verification of the proposed method is also provided.

• 한국방사선학회논문지
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• 제13권1호
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• pp.95-101
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• 2019

본 연구는 AEC를 이용하여 복부검사를 하는 과정에서 체질량지수(BMI)에 따른 ASIR의 적용을 달리하여 노이즈의 변화와 이에 따른 영상의 효용성에 대해 알아보고 표준체격에서 가장 적합한 ASIR의 적용 값을 알아보고자 하였다. 연구결과 체질량 지수가 25 이하인 환자 군에서는 ASIR의 적용을 50%로 증가하면 FBP만 적용하여 검사하는 것과 비교하였을 때 CTDIvol 58.17%, DLP 60.49%가 감소하는 것이 확인되었다. BMI에 따른 노이즈와 SNR값의 비교분석 결과 BMI가 증가할수록 노이즈는 증가하였으나 ASIR의 적용으로 인하여 FBP만 적용한 경우보다 노이즈가 감소한 것을 확인하였고 이로 인하여 ASIR의 적용을 증가시킬수록 SNR은 증가하는 것으로 확인되었다.

• 대한인간공학회지
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• 제22권3호
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• pp.57-73
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• 2003

Although body pressure distribution is sensitive to movements and is relatively simple to measure even in small space, there are few researches involving applications to driver's posture and its change. The main objective in this study is the application of body pressure distribution measurements for the prediction of the driver's posture and its change. This requires quantitative analyses of the dynamic body pressure distribution, which is the change of body pressure distribution with time. The experiment involved 16 male subjects who drove for 45 minutes in a seating buck. Measurement time, stature group, and lumbar support prominence were selected as independent variables, with subjective ratings of driver's discomfort, body posture data of hip, torso. knee angle, and body pressure data variables as dependent variables. The body pressure change variables and subjective ratings were found to increase as the measurement time increased and body pressure ratio variables reflected the torso angle. From the results and analysis of the body posture data and subjective rating results, it was predicted that the seats and the design of the lumbar supports used in the experiment was not fit for tall subjects, which could also be confirmed through the body pressure distribution data.

• 한국전자파학회논문지
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• 제25권2호
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• pp.137-148
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• 2014

본 논문에서는 인체 부착형 Ultra-Wideband(UWB) Multiple-Input Multiple-Output(MIMO) 안테나를 제안하고, 인체의 영향을 고려한 안테나 성능과 인체에 미칠 수 있는 영향에 대한 분석을 하였다. 제안된 안테나는 사각 모노폴 형태의 두 안테나와 격리도 특성을 개선하기 위하여 안테나 사이에 위치한 plunger형 isolator로 구성되어 있다. 안테나의 근거리장에 인체가 존재할 때, 인체가 안테나에 미치는 영향을 분석하기 위하여 시뮬레이션과 측정을 수행하였다. 측정 결과, Specific Absorption Rate(SAR) 값은 공급전력 0.5 mW에서 안테나 1, 2 각각 0.132, 0.08 W/Kg으로 1 g 평균 전자파 흡수율을 1.6 W/kg으로 제한한 FCC 지침을 초과하지 않음을 알 수 있다.

• 기본간호학회지
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• 제6권3호
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• pp.452-463
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• 1999

This study was performed to inquire into recognition of cold and heat application. The subjects in the study were 429 adults who were collected by disproportional quota sampling according to age, sex. The instrument was 36 questions that constitured closed questions and semiopened questions that encluded general characteristics, recognition of cold and heat applications. and what will you do when requested cold and heat applications on abdomial and perineal areas. Data were collected from september 25 to October 25, 1998. Data was analysed by SPSS/win, into frequency, Pearson correlation, t-test, ANOVA. The results were following. 1) The subjects consisted of male and female who was from teenage to fifty year old above. According to general characteristics, who endureed moderate cold-heat application, had constitutional fever, good sweat, and taked a cold bath accationally. And the woman think that their body were more cold than man. and the number of cold bath was less than man. Woman felt more harder than man that endured exposing cold. According to the recognitions of cold-heat applications, the 61.9% of the subjects think that cold application is more positive, and the 61.7% of the subjects think that heat application is more positive. 2) The subjects think that oral cavity, abdomen, back, extremes must be warm. 3) The percents of cold or heat application at abdomen were 77.4%, 86.5% respectely and the percents of cold or heat application at perineum were 56.9%. 93.6% respectely. With the above results. we know that the subjects have the fixed perceptions that each body part has to maintain its temperature. especially, they think that postpartum care is correlated with cold-heat application. So when we intervent nursing care, we also must regard their recognitions of cold and heat applications. and we need to educate and explain correctly about cold-heat application.

• KSBB Journal
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• 제16권1호
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• pp.11-14
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• 2001

Techniques for protein refolding from inclusion body are discussed in view of its engineering application to large scale protein purification. Among the techniques, dilution and dialysis are mainly utilized due to simple operation. Membrane reactor, gel filtration chromatography, and continuous tank operation are emerging tools for their process-scale possibility in refolding. Reaction engineering approaches could be used to analyze the kinetic behaviour in the process scale refolding reactor. The kinetic analysis is helpful in the optimization of refolding yield in the refolding reactor.