• 대한임베디드공학회논문지
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• 제10권2호
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• pp.109-117
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• 2015

In this paper, we have developed smart-phone App(application) for screening Dementia using bionic sensors, urine test and questionnaire. Since small amounts of urinary protein strongly predict faster cognitive decline in the elderly, smart-phone based urinalysis is adopted to screen dementia more accurately as well as bionic sensors such as $SpO_2$ and HRV(Heart Rate Variability). Firstly, DI(Dementia Index) is calculated from urinalysis, two bionic sensors and electric questionnaire, and then compared to the threshold from clinical test. Finally the results of Dementia screening is shown in your smart-phone and useful information to prevent or relieve Dementia is also given. We performed simple testing on persons aged over 60 and found out the proposed application can be useful devices for screening Dementia easily and quickly.

• Toxicological Research
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• 제18권3호
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• pp.267-273
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• 2002

Fructose 1,6-diphosphate(FDP), a glycolytic metabolite, is reported to ameliorate inflammation and inhibit the nitric oxide production in murine macrophages stimulated with endotoxin. It is also reported that FDP has cytoprotective effects against hypoxia or ischemia/reperfusion injury in brain and heart, and may play a protective role in ultraviolet B (UVB, 280~320 nm)-injured keratinocyte by attenuating prostaglandin (PG)-E$_2$production and cyclooxygenase (COX)-2 expression, which are possibly through blocking the intracellular reactive oxygen species (ROS) accumulation. Therefore FDP is considered to act as a potent antioxidant especially in the skin. We conducted the several safety tests (single-dose toxicity, primary skin irritation test, eye irritation test, skin sensitization test, phototoxicity test, photosenitization test and human patch test) to see if FDP is safe in case used for the skin application. Our data obtained hitherto suggest that FDP is very safe if applied to the skin.

• 인터넷정보학회논문지
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• 제17권5호
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• pp.89-95
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• 2016

In a software testing domain, test case prioritization techniques improve the performance of regression testing, and arrange test cases in such a way that maximum available faults be detected in a shorter time. User-sessions and cookies are unique features of web applications that are useful in regression testing because they have precious information about the application state before and after making changes to software code. This approach is in fact a user-session based technique. The user session will collect from the database on the server side, and test cases are released by the small change configuration of a user session data. The main challenges are the effectiveness of Average Percentage Fault Detection rate (APFD) and time constraint in the existing techniques, so in this paper developed an intelligent framework which has three new techniques use to manage and put test cases in group by applying useful criteria for test case prioritization in web application regression testing. In dynamic weighting approach the hybrid criteria which set the initial weight to each criterion determines optimal weight of combination criteria by evolutionary algorithms. The weight of each criterion is based on the effectiveness of finding faults in the application. In this research the priority is given to test cases that are performed based on most common http requests in pages, the length of http request chains, and the dependency of http requests. To verify the new technique some fault has been seeded in subject application, then applying the prioritization criteria on test cases for comparing the effectiveness of APFD rate with existing techniques.

• 한국도로학회논문집
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• 제19권2호
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• pp.75-85
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• 2017

PURPOSES : The purpose of this study was to determine the optimum mix design of the content of 100 % reclaimed asphalt pavement (RAP) for spray injection application with different binder types. METHODS : Literature review revealed that spray injection method is the one of the efficient and economical methods for repairing a small defective area on an asphalt pavement. The Rapid-Setting Polymer modified asphalt mixtures using two types of rapid setting polymers-asphalt emulsion and a quick setting polymer asphalt emulsion-were subjected to the following tests to determine optimum mix designs and for performance comparison: 1) Marshall stability test, 2) Retained stability test, 3) Wet track abrasion test, and 4) Dynamic stability test. RESULTS and CONCLUSIONS : Type A, B, and C emulsions were tested with different mix designs using RAP aggregates, to compare the performances and determine the optimum mix design. Performance of mixtures with Type A emulsion exceeded that of mixtures with Type B and C emulsion in all aspects. In particular, Type A binder demonstrated the highest performance for WTAT at low temperature. It demonstrated the practicality of using Type A mixture during the cold season. Furthers studies are to be performed to verify the optimum mix design for machine application. Differences in optimum mix designs for machine application and lab application will be corrected through field tests.

• ETRI Journal
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• 제38권3호
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• pp.479-486
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• 2016

System-on-chip (SoC) designs have a number of flip-flops; the more flip-flops an SoC has, the longer the associated scan test application time will be. A scan shift operation accounts for a significant portion of a scan test application time. This paper presents physical-aware approaches for speeding up scan shift operations in SoCs. To improve the speed of a scan shift operation, we propose a layout-aware flip-flop insertion and scan shift operation-aware physical implementation procedure. The proposed combined method of insertion and procedure effectively improves the speed of a scan shift operation. Static timing analyses of state-of-the-art SoC designs show that the proposed approaches help increase the speeds of scan shift operations by up to 4.1 times that reached under a conventional method. The faster scan shift operation speeds help to shorten scan test application times, thus reducing test costs.

• 대한전기학회논문지:시스템및제어부문D
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• 제54권7호
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• pp.458-461
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• 2005

Power dissipated during test application is substantially higher than power dissipated during functional operation which can decrease the reliability and lead to yield loss. This paper presents a new technique for power minimization during test application in full scan sequential circuits. This paper shows freezing of combinational logic parts during scan shift operation in test mode. The freezing technique leads to power to minimization. Significant power reduction in the scan techniques is achieved on ISCAS 89 benchmarks.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 추계 학술논문 발표대회
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• pp.104-105
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• 2013

The buildings constructed with steel structure is coated with certified fire resistive material to resist from fire. Coating materials lose their initial performances as time passes, so they need some maintenance. Fireproof spray-application also loses its performance and this performance loss of thr fireproof spray-application is very important because fire resistance of buildings depends on fireproof spray-application. So this study is to develop Acceleration durability test method of Fireproof spray-application, and use the Certification of fire resistant coating system.

• KIEAE Journal
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• 제7권4호
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• pp.119-126
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• 2007

In this study, we processed two procedures of application test of filler for fire-resistance utility that are new application methods of aerated concrete and properties test of aerated concrete according to mixing ratio because we investigated the better use of aerated concrete as filler for fireproof safety and we proposed basic data about standardization of mixing of aerated concrete. We measured flow and volume change of aerated concrete. And if its volume doesn't change, we added measuring unit weight and compressive strength. To test application of aerated concrete as filler for fireproof safety, we filled up aerated concrete to fireproof safety according to suitable mixing ratio. Then we measured maximum temperature of inner part of fireproof safety in accordance with the standard test of fireproof. According to the results, aerated concrete as filler for fireproof safety could be possibly used. So when we make aerated concrete, we should consider using an adding agent as well as a foaming agent.

• 한국정보과학회논문지:소프트웨어및응용
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• 제36권9호
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• pp.706-717
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• 2009

웹 어플리케이션은 프레임워크가 제공하는 라이브러리를 재사용해서 구현하며, 다계층 아키텍처를 갖는다. 또한 사용자 요청을 처리하기 위해, 화면에서 시작하여 해당 웹 어플리케이션 구성 컴포넌트를 실행하고 데이터베이스를 경유하여 다시 화면으로 돌아오는 실행 흐름, 즉 비즈니스 로직을 갖는다. 웹 어플리케이션을 효과적으로 테스트하기 위해서는 이러한 웹 어플리케이션의 특징을 반영하는 테스트 방안이 필요하다. 본 논문은 웹 어플리케이션 테스트를 위해 사용자 화면으로 테스트를 수행하되, 웹 비즈니스 로직 상의 인터페이스 테스트 커버리지로 검증하는 방법을 제안한다. 이를 자동화한 테스트 도구인 Testopiacov를 통해 웹 어플리케이션을 테스트하고 그 결과를 통하여 제안하는 웹 어플리케이션 테스트 방법을 분석한다.

• 대한전자공학회논문지SD
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• 제46권5호
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• pp.1-8
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• 2009

스캔 기반 테스트 방법은 큰 순차 회로를 테스트하기 위한 매우 효율적이며 널리 사용되는 방법이다. 그러나 스캔 기반 테스트 방법은 테스트 패턴을 긴 스캔 체인을 통해서 순차적으로 인가해야 하기 때문에 긴 테스트 인가 시간을 필요로 한다. 또한, 스캔 쉬프트 동작이 정상 동작과 비교할 때 전력 소모를 급격히 증가시킨다. 이러한 문제점을 해결하기 위해서, 본 논문에서는 테스트 패턴 인가 시간과 테스트시의 전력 소모를 줄이기 위한 새로운 스캔 구조를 제안한다. 제안하는 스캔 구조는 스캔 체인을 여러 개의 세그먼트로 분할하고 specified bit를 포함하지 않는 세그먼트들을 바이패스 한다. 바이패스 되는 스캔 세그먼트들은 테스트 패턴 인가 동작에서 제외되기 때문에 테스트 패턴 인가 시간과 테스트시의 소모 전력이 상당히 줄어들게 된다.