• Title/Summary/Keyword: Environment Test

Search Result 9,742, Processing Time 0.037 seconds

Characterization of Test Substance in the GLP (GLP 시험에서의 시험물질 특성파악)

  • Lee, Eun-Jung;Song, Kyung-Seuk;Yu, Il-Je
    • Toxicological Research
    • /
    • v.23 no.2
    • /
    • pp.173-177
    • /
    • 2007
  • The GLP contains specific language concerning characterization of the test, control and reference substances used in toxicity studies. This paper will describe and discuss what types of documents are required to support test/reference substance characterization under GLP system. The purpose of this article is to present an overview of data needed in the characterization package that will adequately define the substance. Most sponsors use a certificate of analysis (COA) to communicate the test sub-stance characterization status information to the contracting research organizations. The COA should provide the test $material^{\circ}{\phi}s$ characterization results, substance storage requirements, expiration dates, verification of the collection of the retention sample, archival location of the data to support the characterization and GLP compliance status of the characterization.

Effective Test & Evaluation Method of Weapon Systems in the Change of Acquisition Environment (획득환경변화(獲得環境變化)에 따른 효율적(效率的)인 무기체계(武器體系) 시험평가(試驗評價) 방법(方案))

  • Yang, Byeong-Hee;Kim, Heung-Bin
    • Journal of the military operations research society of Korea
    • /
    • v.31 no.1
    • /
    • pp.93-106
    • /
    • 2005
  • The complexity of modern weapon systems using the IT(intelligence technology) demands that rapid and effective transition from force requirements to deployment and fielding. Thus this paper deals with the DT&E(developmental test & evaluation), OT&E(operational test & evaluation) and SBT(simulation based test) procedure using the case study in the test & evaluation of weapon systems. This study is aimed to produce the effective test & evaluation method of weapon systems in the change of acquisition environment.

Reliability Assessment Criteria of Window switch for automobiles (자동차용 윈도우 스위치의 신뢰성 평가기준)

  • Choi, Man-Yeop;Choi, Beom-Jin;Baik, Jai-Wook
    • Journal of Applied Reliability
    • /
    • v.11 no.1
    • /
    • pp.1-15
    • /
    • 2011
  • Automobile markets are so fierce in the world market that every major manufacturer assure the buyer of the car by give a provocative warranty plan for their cars. For instance Hyundai motor company offer 10 years and 100,000 miles of warranty whichever comes first. But in order for this effort to be successful every critical component such as window switch has to be proven to be reliable in an adverse environment. Therefore, in this article reliability assessment criteria for window switch are established in terms of basic performance test, environment test and life test.

Reliability Assessment Criteria of Reflector for Lamp of BLU(Back Light Units) (BLU(Back Light Units) 램프 반사갓의 신뢰성평가기준)

  • Park, Chang-Kyu;Jeong, Hee-Suk;Jeong, Hai-Sung
    • Journal of Applied Reliability
    • /
    • v.11 no.1
    • /
    • pp.17-30
    • /
    • 2011
  • Many domestic manufacturers make reflectors for Lamps of BLU(back light units). However, color change and parting occur as a result of diverse usage environment. Therefore, many of the manufacturers are reluctant in R&D investment of reflectors for Lamps of BLU. Hence, in this article reliability assessment criteria for reflector for lamp of BLU are established in terms of performance test, environment test and life test.

Performance Assesment of the Existing Tunnel drain and higher permeable for the In-plane Test (평면투수 실험을 통한 기존 배수재와 고투수성 배수재의 성능 평가)

  • Ma, Sang-Joon;Lee, Heung-Soo;Choi, Hee-Sup;Kim, Kyung-Duk
    • Proceedings of the Korean Geotechical Society Conference
    • /
    • 2008.10a
    • /
    • pp.1581-1584
    • /
    • 2008
  • In this study, performance Assesment of the existing tunnel drain and higher permeable for the In-plane Test. Two separate simulation tests from geotexitile and Lightweight Foamed Mortar compare. perfomed:the one is the in-plane test and the other is the clogging phenomenon test. As a result, NATM Composite used to Ligheweight Foamed Mortar pemability 80%, more than existing tunnel drain. Also, clogging phenomenon test do low assesment more than existing tunnel drain geotextile.

  • PDF

Thermal environmental performance evaluation of 4kW power electronic cooling system for commercial vehicle (4kW급 상용차량용 전력전자 냉방장치의 열 환경 성능평가)

  • Han, Keun-Woo;Kim, Seong-Gon;Lee, Chung-Hoon;Choi, Myoung-Hyun;Jung, Young-Gook
    • Proceedings of the KIPE Conference
    • /
    • 2017.07a
    • /
    • pp.290-291
    • /
    • 2017
  • This study deals with an evaluation method for testing the robustness of the 4 kW commercial power electronic cooling system to the thermal environment. The power electronic cooling system consists of a cascaded push-pull DC / DC converter, a three-phase DC / AC inverter, and an electric compressor. The system manufactured by the thermal environment evaluation test (heat distribution test, thermal impact test, high temperature operation test, temperature cycle test, low temperature operation test) for the commercial electric power cooling system for commercial vehicle proves that it is robust against thermal environment.

  • PDF

TDX-1의 시험자동화를 위한 Test Environment 의 구현

  • Yun, Byeong-Nam;No, Cheol-U;Lee, U-Seop
    • ETRI Journal
    • /
    • v.9 no.1
    • /
    • pp.104-117
    • /
    • 1987
  • 본고는 TDX-1의 기능 및 시스팀 시험을 시험전용 컴퓨터를 사용하여 자동화시켜, 체계적이고 능률적인 시험수행과 test quality를 보장할 수 있는 test environment system에 대해 그 기능들의 설명과 그에 대한 implement 방법 및 logical, physical structure를 소개하였다.

  • PDF

Slug Interference Tests: Performance and Comparison

  • 이진용;이명재;최예권;김용철
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
    • /
    • 2001.09a
    • /
    • pp.184-187
    • /
    • 2001
  • This study presents procedure and analysis method for not well known slug interference tests. Results of the slug interference tests were compared with those of pumping and recovery tests and conventional slug tests.

  • PDF

Implementation of GPS Spoofing Test Environment using Multiple GPS Simulators

  • So, Hyoungmin
    • Journal of Positioning, Navigation, and Timing
    • /
    • v.5 no.4
    • /
    • pp.165-172
    • /
    • 2016
  • A Global Navigation Satellite System (GNSS), which is typically exemplified by the Global Positioning System (GPS), employs a open signal structure so it is vulnerable to spoofing electronic attack using a similar malicious signal with that used in the GPS. It is necessary to require a spoofing test evaluation environment to check the risk of spoofing attack and evaluate the performance of a newly developed anti-spoofing technique against spoofing attacks. The present paper proposed a simulation method of spoofing environment based on simulator that can be implementable in a test room and analyzed the spoofing simulation performance using commercial GPS receivers. The implemented spoofing simulation system ran synchronized two GPS simulator modules in a single scenario to generate both of spoofing and GPS signals simultaneously. Because the signals are generated in radio frequency, a commercial GPS receiver can be tested using this system. Experimental test shows the availability of this system, and anti-spoofing performance of a commercial GPS receiver has been analyzed.

Patterns of Antimicrobial Resistance and Detection of mecA Gene from Methicillin Resistant Staphylococcus aureus Isolated from Healthcare Facilities and U.S. Military Hospital in Korea

  • Sin Chin-Su;Lee Gyu-Sang;Lim Kwan-Hun;Kim Jong-Bae
    • Biomedical Science Letters
    • /
    • v.11 no.4
    • /
    • pp.447-453
    • /
    • 2005
  • A total of 108 strains of MRSA (Methicillin-resistant Staphylococcus aureus) clinical isolates was collected from $121^{st}$ general hospital (U.S. military hospital), Korean healthcare facility from January to March in 2005 and Wonju Christian hospital in 1999. Antimicrobial susceptibility test by Vitek System and MIC test using oxacillin and cephalothin stripes by E-test were executed. PCR based detection of mecA gene was performed on the all of MRSA clinical isolates, too. MRSA clinical isolates were characterized with antimicrobial resistance patterns, PCR based detection of mecA gene and validation of the multiplex PCR strategy of SCCmec among clinical isolates.

  • PDF