• 대한인간공학회지
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• 제12권1호
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• pp.17-24
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• 1993

Today, rapid development and timeliness of introducing a new product be- comes a more influencing factor of determing its competitive power due to a shortened product cycle, while rapid improvement of manufacturing technology makes product design and manufacturing fuse together. This implies that prod- uct usability evaluation and improvement starts right from its design phase, resulting in less development time and cost. To make this possible, proper as- sessment of human reach is one of essential functions for ergonomic product us- ability evaluation, specifically in the platform of computer-aided ergonomic evaluation models or any CAD system with a built-in man model. In this study, an analytic reach prediction algorithm ensuring the posture that human naturally takes, is presented by employing the methods developed for robot kinematics. Among robot kinematic methods for solving the multi-link system, the resolved motion method was found to be effective to solve human reach as a redundant manipulator model. Also, the joint range availability was used as a performance fonction to guarantee human naturalness. The result is expected to be directly applicable to product usability evaluations.

• 한국환경보건학회지
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• 제9권1호
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• pp.89-93
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• 1983

Various analytical methods for p-Nitrophenol derivatives have been reported as follows. 1) Thin-Layer Chromatography, 2) Gas Chromatography, 3) Cholinesterase Activity Determination, 4) Diazo Method, 5) Nitrophenol Method, 6) Indophenol Method. But these methods are mainly analyse total quantity of p-Nitrophenol and are not available for the seperation and pose some analytical problems associated with extensive clean up procedure. A rapid and simple method was developed for the seperation and quantitation for the p-Nitrophenol and it's derivatives by HPLC. Also an experiment was undertaken by the authors for the quantitation of the p-Nitrophenol in the blood of the intoxicated body. Levels of p-Nitrophenol ranging from approximately 0.10 to $1.69 \mu g/ml$ for Parathion and $3.44 \mu g/ml$ for EPN in each sample were measured with the average recovery of $95.5\pm0.52%$

• Journal of Electrical Engineering and Technology
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• 제6권5호
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• pp.723-730
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• 2011

The GPS modernization program offered a new civil signal on the L2 band, and the first modernized GPS Block IIR satellite was launched in September 2005. Currently, eight GPS Block IIRM satellites and two Block IIF satellites transmit L2C signal. The L2C signal contains two codes of CM and CL that are much longer than the L1 C/A code. Thus, the acquisition of the CM and CL codes takes more time compared with that of L1 C/A code. Under the assumption that the L2C signal is strong enough for detection, this paper suggests rapid acquisition methods for the GPS L2C signals for software receivers and compares its performance with that of other methods.

• 대한정형외과학회지
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• 제55권3호
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• pp.222-228
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• 2020

노년층 인구가 증가함에 따라 요추 유합술의 빈도가 높아지면서 수술 후 빠른 회복 및 기능 회복 치료법에 대한 관심이 증가하고 있다. 수술 후 조기 회복 프로그램, 다중 통증 조절법을 통하여 합병증을 줄이고 빠른 회복을 기대할 수 있으며 유합률을 높일 수 있는 다양한 방법을 사용하고 있다.

• 한국미생물·생명공학회지
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• 제44권4호
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• pp.493-496
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• 2016

Peach rosette mosaic virus (PRMV)는 1933년 복숭아에서 처음 보고되었으며, 복숭아, 자두, 블루베리, 민들레, 벚나무 등에 감염되는 식물바이러스이다. PRMV는 한국에서 보고된 적이 없으나, 식물검역에서 관리병(control viruses)으로 지정되어 있다. 이번 연구에서는 PRMV를 더욱 신속하고 특이적으로 진단하기 위하여 Loop-mediated isothermal amplification 분석법을 적용한 진단법을 개발하였다. LAMP 방법은 기존의 PCR 방법(RT-PCR 및 nested PCR)과 같은 검출 강도를 가지고 있다. 또한 LAMP 반응을 확인하기 위해 PRMV cDNA을 outer primer sets (Product size 264 bp)로 PCR 한 뒤, Pvu II (CAG/CTG) 제한효소를 처리하였다. 제한효소 처리 결과 2개의 digestion fragments (207 + 57 bp)가 확인되었다. PRMV의 LAMP 진단 방법은 관련 식물로부터 더욱 신속한 모니터링이 가능할 것으로 기대된다.

• 한국수산과학회지
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• 제50권6호
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• pp.669-674
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• 2017

Paralytic shellfish toxins (PSTs) are produced by marine dinoflagellate phytoplankton Alexandrium spp. and Gymnodinium spp. These toxins accumulate in filter feeding organisms such as bivalves and the ingestion of contaminated shellfish can cause illness in humans. The mouse bioassay (MBA) has been the preferred PST testing method worldwide for more than 50 years. However, this assay has several disadvantages, such as detection limits, non-toxic-profiles, and the ethical issues of using animals. The aim of this study was to establish an alternative to the MBA method for testing for PSTs. We optimized the analysis conditions of a post-column oxidation-high performance liquid chromatography (PCOX-HPLC) method and the Scotia Rapid Test Kit, and then compared the accuracy of these methods to the MBA method. The results demonstrated a strong correlation between the PCOX-HPLC method and the MBA, although the PCOX-HPLC method required expensive equipment and standard material, and was time consuming. The Scotia Rapid Test Kit promises to be a useful tool, as it provided rapid and qualitative results, although the method sometimes gave a false positive result that could not be explained by toxin profiles.

• Mass Spectrometry Letters
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• 제5권4호
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• pp.110-114
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• 2014

The method of direct mass spectrometry profiling is reliable and reproducible for the rapid identification of clinical isolates of bacteria and fungi. This is the first study evaluating the approach of MALDI-TOF mass spectrometry profiling for rapid identification of carbapenemase-resistant enterobacteriaceae (CRE). Proof of concept was achieved by the discrimination of CRE using MALDI Biotyper MS based on the protein. This profiling appears promising by the visual observation of consistent unique peaks, albeit low intensity, that could be picked up from the mean spectra (MSP) method. The Biotyper MSP creation and identification methods needed to be optimized to provide significantly improved differences in scores to allow for subspecies identification with and without carbapenemases. These spectra were subjected to visual peak picking and in all cases; there were pertinent differences in the presence or absence of potential biomarker peaks to differentiate isolates. We also evaluated this method for potential discrimination between different carbapenemases bacteria, utilizing the same strategy. Based on our data and pending further investigation in other CREs, MALDI-TOF MS has potential as a diagnostic tool for the rapid identification of even closely related carbapenemases but would require a paradigm shift in which Biotyper suppliers enable more flexible software control of mass spectral profiling methods.

• 대한물리의학회지
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• 제15권3호
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• pp.61-68
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• 2020

PURPOSE: The purpose of this study was to investigate the current state of rapid weight loss and physical and mental complaints among elite combat athletes who were selected and trained as national representatives. METHODS: A total of 127 combat athletes who had trained at the national training center in 2019 were enrolled. The questionnaire used as the survey tool was interpreted as words that Korean athletes could easily understand based on the Portuguese version of the 'Rapid Weight Loss Questionnaire' (RWLQ). χ² tests was performed to determine the differences in physical and mental changes according to sports and weight loss method. RESULTS: Combat athletes in Korea regularly undergo rapidly weight loss within a short period of time prior to competition. There were statistically similar results in terms of weight loss method, physical and mental changes and information about weight loss according to the sport. Weight loss methods often limit food and water intake and dehydrate. The physical complaints associated with them are symptoms such as "no energy", "dizziness", and "muscle spasms". The mental complaints include "irritability", "concentration loss" and "anxiety". These symptoms can be caused by side effects such as food intake limitation, water restriction and dehydration. Information sources for weight loss were in the order of "senior or colleagues", "supervisor or coach", and "Internet". No information was obtained from a doctor or dietitian. CONCLUSION: These results provide a baseline for predicting proper weight loss in athletes and provide useful information for developing performance enhancement as well as weight loss.

• 대한공간정보학회지
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• 제23권3호
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• pp.3-10
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• 2015

지상의 모든 물체는 고유의 분광 반사율을 갖고 있으며, 이러한 특성을 이용하여 지상 물체의 분류와 목표물 탐지 등이 가능하다. 정확한 분석을 위해서는 취득된 원격탐사 자료를 분광 반사율로 변환해야 한다. 이를 위한 절대복사보정 기법으로는 자료 제공 기관에서 명시한 변환 수식을 이용하는 방법, 지상에서 측정한 분광 반사율만으로 단순 경험적 회귀 분석을 이용하는 방법, ATCOR/FLAASH 같은 수학적 모델을 이용하는 방법 등이 있다. 본 연구에서는 CASI 초분광 영상의 분광 반사율 자료를 이용하여 RapidEye 위성영상의 대리복사보정을 수행하고, 그 결과를 다른 복사보정 기법 결과 및 지상 자료와 비교하였다. 실험 결과 제안 기법이 ATCOR 및 New Kurucz 2005 기법보다 높은 유사성을 보였으며, 일반적으로 활용되는 ELM 기법과 유사한 결과를 도출하였다.

• 한국식품영양과학회지
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• 제14권2호
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• pp.202-213
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• 1985

The protein nutritional quality of foods has become an important factor to food processors with the advent of nutritional labeling regulations for foods. Then, as is true today, the officially approved assay for protein nutritional quality was the rat based protein efficiency ratio(PER) bioassay. The PER bioassay requires a minimum of 28 days to performe, and is therefore not applicable to routine quality assurance use by the food industry. Within the past ten years there has been a research emphasis placed on the development of rapid, inexpensive, biological and/or chemical based assays for protein nutritional quality. It was hoped that if a rapid assay could be developed and thoroughly tested, it could be used in lieu of the PER bioassay in the day-to-day quality assurance screening of food ingredients and products. The rapid assays developed in the hope of attaining this goal have been based on microorganisms, proteolytic enzymes, and amino acid profiles, as well as combinations of the above. In this review, it will be described and briefly discussed many of procedures which had contributed conceptually as well as practically to the development of in vitro methods for the evaluation of protein quality. Special emphasis will be placed on the C-PER(computed protein efficiency ratio) assay which combines data from in vitro protease digestion and amino acid composition to predict protein nutritional quality designed by Satterlee et al. (1980), and the DC-PER(discriminant computed PER) which is a method of estimating protein quality based on rat assay and in vitro digestibility obtained using solely essential amino acid data will be also introduced.