• International journal of advanced smart convergence
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• 제11권3호
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• pp.23-27
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• 2022

In this paper, we explore a new type of Android evasive malware based on the Sequential Probability Ratio Test (SPRT) that does not perform malicious task when it discerns that dynamic analyzer is input generator. More specifically, a new type of Android evasive malware leverages the intuition that dynamic analyzer provides as many inputs within a certain amount of time as possible to Android apps to be tested, while human users generally provide necessary inputs to Android apps to be used. Under this intuition, it harnesses the SPRT to discern whether dynamic analyzer runs in Android system or not in such a way that the number of inputs per time slot exceeding a preset threshold is regarded as evidence that inputs are provided by dynamic analyzer, expediting the SPRT to decide that dynamic analyzer operates in Android system and evasive malware does not carry out malicious task.

• 산업기술연구
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• 제21권B호
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• pp.149-153
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• 2001

A study on the particle growth in $TEOS/O_2$ plasma was performed, and particle size and its distribution was measured by the electrical aerosol analyzer (EAA), light scattering particle size analyzer and the particle size was also determined by SEM. The effects of process variables such as total gas flow rate, reactor pressure, supplied power and initial reactant concentration on the particle growth were investigated. From the EAA results, the particle size distribution is divided into three groups of the cluster size and the small and large size particles. The particle size distribution measured by the light scattering particle size analyzer becomes bimodal, because the cluster size particles smaller than 20 nm in diameter cannot be detected by the light scattering particle size analyzer. The size of particles measured by the light scattering particle size analyzer is in good agreements with those by the SEM. Also we could understand that the particle formation is very sensitive to the changes of reactor pressure and reactant concentration. As the total gas flow rate increases, the particle size decreases because of the shorter residence time. As the reactor pressure, or the reactant concentration increases, the particle concentration increases and the particles grow more quickly by the faster coagulation between particles.

• 한국통신학회논문지
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• 제36권3B호
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• pp.195-207
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• 2011

본 논문에서는 IMS 망에서 단말기간 세션 연결 정보를 그래픽으로 표현해주는 비쥬얼 프로토콜 분석기(VIPA: Visual IMS Protocol Analyzer)를 설계하고 구현한다. 구현된 프로토콜 분석기는 IMS 망에서 세션 설정을 위해 사용되는 SIP 프로토콜 정보를 패킷 단위로 수집하고 분석하여 세션 상태를 그래픽으로 표현함으로써 프로토콜 분석의 편의성을 제공한다. 기존의 프로토콜 분석기가 단말기 측면의 부분적인 세션 연결 상태만 보여주는 한계가 있었으나 구현된 프로토콜 분석기는 세션에 참여하는 모든 사용자 기기들 간의 세션 연결 상태를 확인할 수 있다.

• 대한한의진단학회지
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• 제13권2호
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• pp.88-116
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• 2009

Background : EBM (the evidence based medicine) is the direction of the development for oriental medicine. The pulse meter-analyzer is the important part to standardize the pulse diagnosis. When we set up the direction of the study on the pulse meter-analyzer, the awereness about the pulse meter and analyzer of the clinical oriental medical doctors as consumers is very important. Objectives : In order to prepare for the mutual study and the export strategy on the pulse meter-analyzer of Korea and China, the attitude of the study and the grasp of the awereness about the pulse meter-analyzer of the Chinese medical doctors are very important. Methods : We developed the several items as the important factor of the development of the pulse meter and analyzer. They were translated by chinese medical doctor. The investigation for demend was conducted during 3 months in Guangzhou City, Guangdong Province, China. The results of the investigation was done the statistical method of frequency analysis, Chi-squared test, correspondence analysis. Results : The most important differentiation of symptom is the symptom of JANG-BU(臟腑). The method of the utility in the pulse diagnosis is Chon-Gu (寸口) pulse diagnosis and the research on Chon-Kwan-Cheok(寸關尺) is the most important measurement factor. And the typical the old pulse is the little-fine weak pulse. The pulse meter-analyzer is most suitable to the diagnosis of the hypertension and the arteriosclerosis. Conclusion : The development of the pulse analyzer including the requests of Korean and Chinese medical doctors is very important. Specially the researches on the influence factors of the traditional diagnosis and the environment of the measurement are important for developing the pulse analyze.

• 한국콘텐츠학회논문지
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• 제19권6호
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• pp.565-574
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• 2019

본 연구는 혈액은행 자동화 장비 QWALYS-2 up (Diagast, Loos Cedex, France)의 유용성을 평가하기 위하여 수행되었다. 2013년 10월 1일부터 10월 31말까지 1개월간 강원대학교병원 진단검사의학과에 의뢰된 ABO 및 RhD 혈액형 검사 1,636건, 항체선별검사 1,374건을 대상으로 하였고, ABO 및 RhD 혈액형 검사의 평가는 200건을 대상으로 하였다. 혈액은행 자동화장비의 경제성을 평가하기 위해서는 2018년 12월을 기준으로 장비 도입 전인 2013년 1월부터 장비 도입 후 5개년의 ABO 및 RhD 혈액형 검사와 항체선별검사의 단가를 비교하였다. 본 연구의 주요 결과는 ABO 및 Rh 혈액형 검사 결과, 슬라이드나 시험관을 이용한 수기법의 결과가 100% (200/200) 일치하였고 동종항체 선별검사 결과, 불일치 3검체는 수기법으로 재검을 한 결과, 음성을 보여 QWALYS-2 up에서 위양성의 결과를 나타냈으나, 반응의 정도를 비교한 결과 QWALYS-2 up에서 상대적으로 높게 나타났다. 결론적으로 혈액형자동화 장비 도입 전후의 효과를 평가한 결과, 기존의 수기법과 비교하였을 때 높은 일치율을 보였으며, 정확도 면에서도 신뢰할 만한 것으로 판단되었다. 도입 전후의 시약의 비용은 증가하였지만 인건비의 절감을 감안하면 경제적으로도 유용하다고 평가할 수 있다.

• 대한임상검사과학회지
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• 제55권2호
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• pp.82-92
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• 2023

소변 침전물은 일반적으로 검사자가 원심분리한 소변을 현미경으로 검사한다. 따라서 소변 침전물 표본제작 과정의 차이가 검사 결과에 영향을 미치는지 확인했다. 요시험지 검사와 cobas u 701 analyzer에서 각각 백혈구 및 적혈구가 양성 반응으로 나온 107개의 신선한 검체를 수동 현미경검사를 위해 선택했다. 연구에서는 백혈구와 적혈구에 대해 자동분석기와 세 가지 수동 현미경검사법을 각각의 검사지침에 따라 평가하였다. 백혈구와 적혈구에 대한 cobas u 701 analyzer와 대한임상검사정도관리협회 간의 결정계수는 각각 r²=0.977과 r²=0.970이었다. 백혈구와 적혈구에 대한 cobas u 701 analyzer와 대한 임상검사정도관리협회 간의 일치도는 각각 74.8%, 77.6%였다. 대한임상검사정도관리협회 방법으로 표본을 제작하여 검사한 결과에서 자동분석기와 가장 좋은 상관성 및 일치도를 보였다. 결과적으로 소변 침전물 표본제작 방법의 차이는 침전물 농도에 영향을 미쳤으며 이는 HPF당 세포 등급과 수에 영향을 미쳤다. 따라서 보다 일관되고 정확한 검사 결과를 위해 소변 침전물 표본제작 과정을 표준화하는 것이 좋을 것으로 사료된다.

• 동의생리병리학회지
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• 제23권1호
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• pp.174-179
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• 2009

Arterial pulse palpation is an important diagnostic method in Oriental Medicine, particularly for obtaining information about a patient's health conditions or illness, or for confirming a diagnostic conclusion based on the patient's pulsation. The pulse analyzer is both a leading Oriental Medical equipment and a promising tool with such a strong industrial ripple effect that it was selected as one of the four strategic tools for world Oriental Medical instrument market domination at a recent survey. Although various pulse analyzers had been developed, however, most of these were not widely used for clinical diagnosis, due perhaps to lack of the appliance's reliability caused by its inability to reflect the requirements of the clinicians. Thus, in this thesis, the clinical requirements for the pulse analyzer were identified and analyzed by conducting a questionnaire survey among Oriental Medicine clinicians. By looking into the basic functions of a pulse analyzer, the required measurement time, and the medical insurance fee required were determined and among others, the appliance's specific requirements were determined. Moreover, by investigating on the latest patent trend, the technical elements that are needed for the development of a next-generation pulse analyzer were identified. Through these processes, the flow of the technology that must be developed for the pulse analyzer was determined, and the direction for the development of the specific pulse analyzer hardware, sensor, and diagnostic algorithm was identified and proposed.

• 한국전자파학회논문지
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• 제29권7호
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• pp.491-499
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• 2018

잡음지수분석기의 일반적인 교정방법은 잡음전원을 이용하는 방법이다. 이 방법은 교정 시 잡음전원과 잡음지수분석기의 부정합을 고려하지 않기 때문에 측정결과에서 심각한 불규칙 리플을 동반한다. 본 논문에서는 잡음전원과 잡음지수분석기의 부정합을 모두 고려한 새로운 잡음지수분석기의 교정 및 이를 이용한 새로운 잡음상관행렬 측정방법을 제안한다. 제안하는 방법은 uncorrected 잡음전력을 이용, 교정하지 않은 잡음지수분석기의 이득과 잡음상관행렬을 결정하였다. 그리고 결정된 이득과 잡음상관행렬을 이용, DUT에 대한 잡음상관행렬 측정결과에서 잡음지수분석기의 영향을 교정하였다. 제안된 방법을 통해, 측정된 DUT의 잡음파라미터는 상대적인 잡음비를 이용한 측정 결과와 같은 정도의 불규칙 리플을 보였다.

• 대한예방한의학회지
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• 제13권1호
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• pp.29-40
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• 2009

The demand of research for the development of pulse meter and analyzer by the examination questionnaire made from repeated preliminary investigations. Which was presented in the exhibition KIMES 2008, it's has been proved to be practical. 159 people(oriental medical doctor) sent in the question papers and selected the double answers in the relevant question. At the time of the development of the pulse meter and analyzer, we put the investigation for oriental medical doctor's demands in practice and found the following results. The development of the pulse analyzer is getting more important for modernization of oriental medicine. The purpose of this study was to find out the research needs for the pulse analyzer considering the practical use in the oriental medical clinics. A survey was conducted at the KIMES 2008 exhibition with a set of questionnaires. We collected the data from 159 oriental medical doctors who attended the exhibition, and we found following results. The more oriental doctors did not think the diagnostic devices were important in their clinical practices. Most responders preferred to use the Chon-Kwan-Cheok pulse diagnosis. To find out the mechanism of the pulse diagnosis and to standardize it, the clinical data base containing the results of the pulse diagnosis and the patten discrimination of each patient should be established. In conclusion, the researches on the standardization of Chon-Kwan-Chuk pulse diagnosis including the measurement techniques and the pulse-pattern correlations are very important for developing the pulse analyzer.

• Korean Journal of Acupuncture
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• 제28권4호
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• pp.91-99
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• 2011

Objectives : The purpose of our investigation is to determine degrees of concordance rate among interpreters. Furthermore, we have examined how much concordance rate to come out when beginners have been compared with the pulse analyzer. Methods : Thirty-nine volunteers were enrolled for this study. These subjects took a 5-minute rest in a sitting position as instructed by the protocol. As they were not allowed to move or speak, radial artery pulse conditions were measured on the lower arm of each subject by means of the pulse analyzer under investigation. Two Korean medical doctors, who did not know the status of default pulse conditions, were also instructed to intuitively choose the most corresponding one in comparison with 13 default pulse conditions. Subsequently, we investigated results between interpreters as well as results between interpreter and pulse analyzer. Results : The total concordance rate, with similar concordance rates being included, between interpreters, between interpreter A and pulse analyzer, and between interpreter B and pulse analyzer was 56.4%, 79.5%, and 71.8% respectively. In faint fine weak pulse(微細弱脈) case, interpreter A and B selected 6 and 7 cases respectively, matched the concordance rate 5, and corresponded separately with the pulse analyzer interpreting 8 cases. Conclusions : In case of skipping pulse 2(促2脈), short pulse(短脈), faint fine weak pulse(微細弱脈), the concordance between interpreters also matches with results drawn from the pulse analyzer. The concordance rate goes higher in proportion with such smaller pulse conditions as faint fine weak pulse(微細弱脈) and short pulse(短脈).