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SPIRET: An Innovative Technique for Random Vibration Testing Of Large Spacecraft SPIRET:大型航天器随机振动测试的创新技术
Journal of the IEST Pub Date : 2016-11-15 DOI: 10.17764/1098-4321.59.1.4
P. Girolamo
{"title":"SPIRET: An Innovative Technique for Random Vibration Testing Of Large Spacecraft","authors":"P. Girolamo","doi":"10.17764/1098-4321.59.1.4","DOIUrl":"https://doi.org/10.17764/1098-4321.59.1.4","url":null,"abstract":"Abstract System Point Input Random Excitation Testing (SPIRET) was developed as an alternative to both system level acoustics and base-shake random vibration testing of large spacecraft. The goal of SPIRET was to obtain an enhanced workmanship test of the spacecraft, prior to launch, by inducing a higher, more uniform dynamic acceleration response throughout the integrated system. The underlying SPIRET concept is to utilize the spacecraft modal characteristics to amplify the shaker input force and produce a high acceleration response throughout the flexible structure. SPIRET utilized commercial off-the-shelf vibration equipment coupled with satellite specific Mechanical Aerospace Ground Equipment (MAGE). Random vibration control was achieved using inline load cells and a Force Spectral Density (FSD) input spectrum which effectively provided both feedback control of the shaker and force limiting during the vibration test. SPIRET effectiveness was verified using a hi-fidelity spacecraft simulator which was ...","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"59 1","pages":"4-21"},"PeriodicalIF":0.0,"publicationDate":"2016-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67782518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
IEST Leads Development of First ISO 14644 Nanotechnology Standard est领导第一个ISO 14644纳米技术标准的发展
Journal of the IEST Pub Date : 2016-11-15 DOI: 10.17764/1098-4321.59.1.1
D. Ensor, A. Dixon, Roberta Burrows
{"title":"IEST Leads Development of First ISO 14644 Nanotechnology Standard","authors":"D. Ensor, A. Dixon, Roberta Burrows","doi":"10.17764/1098-4321.59.1.1","DOIUrl":"https://doi.org/10.17764/1098-4321.59.1.1","url":null,"abstract":"","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"59 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2016-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67781423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Real-time Particle Deposition Monitoring of Operational Cleanroom Quality 运行洁净室质量颗粒沉积实时监测
Journal of the IEST Pub Date : 2016-11-15 DOI: 10.17764/1098-4321.59.1.40
K. Agricola
{"title":"Real-time Particle Deposition Monitoring of Operational Cleanroom Quality","authors":"K. Agricola","doi":"10.17764/1098-4321.59.1.40","DOIUrl":"https://doi.org/10.17764/1098-4321.59.1.40","url":null,"abstract":"Abstract Real-time particle deposition monitoring is a new way to monitor the operational quality of a cleanroom. Up to now the performance of a cleanroom is often monitored with light-scattering airborne particle counters. These give valuable information on airborne particles, but no information on the potentially threatening macroparticles in a cleanroom. In this paper, particle deposition phenomena and ways to determine particle deposition are discussed. A real-time particle deposition monitor using holographic imaging of the witness plates in a sensing device is described. Some practical experiences with real-time particle deposition measurements are demonstrated. Real-time particle deposition monitoring can be a valuable method to control the operational quality of a cleanroom where personnel are working.","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"59 1","pages":"40-52"},"PeriodicalIF":0.0,"publicationDate":"2016-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67782605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Commissioning of an Atypical Acoustic Facility for Experimental Testing 非典型声学设备的试验测试
Journal of the IEST Pub Date : 2016-11-15 DOI: 10.17764/1098-4321.59.1.22
Viken N. Koukounian, C. Mechefske
{"title":"Commissioning of an Atypical Acoustic Facility for Experimental Testing","authors":"Viken N. Koukounian, C. Mechefske","doi":"10.17764/1098-4321.59.1.22","DOIUrl":"https://doi.org/10.17764/1098-4321.59.1.22","url":null,"abstract":"Abstract Computational modeling (BEM, FEM, and SEA) is often implemented at different stages of the design process to optimize manufacturing and performance parameters. Computational results are typically verified experimentally. Experimental testing standards, particularly those related to vibro-acoustic testing, are defined by various agencies such as ASTM, ANSI, and ISO. An investigation proposing a new computational methodology of analyzing the vibro-acoustic behavior of an aircraft fuselage due to the turbulent boundary layer required verification of the predictions experimentally. In the face of certain limitations, an atypical acoustic facility was constructed challenging conventional standards while complying with the defined criteria of international testing standards. Principal deviations relate to the geometric requirements that recommend large volumes of certain construct, and microphone and acoustic source positioning. The calculated 95% confidence intervals compared exceptionally well agains...","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"1 1","pages":"22-39"},"PeriodicalIF":0.0,"publicationDate":"2016-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67782282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Aspiring to Unintended Consequences of Natural Language Processing: A Review of Recent Developments in Clinical and Consumer-Generated Text Processing. 渴望自然语言处理的意外后果：临床和消费者生成的文本处理最新发展综述》。
Journal of the IEST Pub Date : 2016-11-10 DOI: 10.15265/IY-2016-017
D Demner-Fushman, N Elhadad
{"title":"Aspiring to Unintended Consequences of Natural Language Processing: A Review of Recent Developments in Clinical and Consumer-Generated Text Processing.","authors":"D Demner-Fushman, N Elhadad","doi":"10.15265/IY-2016-017","DOIUrl":"10.15265/IY-2016-017","url":null,"abstract":"<p><strong>Objectives: </strong>This paper reviews work over the past two years in Natural Language Processing (NLP) applied to clinical and consumer-generated texts.</p><p><strong>Methods: </strong>We included any application or methodological publication that leverages text to facilitate healthcare and address the health-related needs of consumers and populations.</p><p><strong>Results: </strong>Many important developments in clinical text processing, both foundational and task-oriented, were addressed in community- wide evaluations and discussed in corresponding special issues that are referenced in this review. These focused issues and in-depth reviews of several other active research areas, such as pharmacovigilance and summarization, allowed us to discuss in greater depth disease modeling and predictive analytics using clinical texts, and text analysis in social media for healthcare quality assessment, trends towards online interventions based on rapid analysis of health-related posts, and consumer health question answering, among other issues.</p><p><strong>Conclusions: </strong>Our analysis shows that although clinical NLP continues to advance towards practical applications and more NLP methods are used in large-scale live health information applications, more needs to be done to make NLP use in clinical applications a routine widespread reality. Progress in clinical NLP is mirrored by developments in social media text analysis: the research is moving from capturing trends to addressing individual health-related posts, thus showing potential to become a tool for precision medicine and a valuable addition to the standard healthcare quality evaluation tools.</p>","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"45 1","pages":"224-233"},"PeriodicalIF":0.0,"publicationDate":"2016-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5171557/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89890173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clothing Systems in Operating Rooms - A Comparative Study 手术室服装系统的比较研究
Journal of the IEST Pub Date : 2015-11-01 DOI: 10.17764/1098-4321.58.1.20
B. Ljungqvist, Berit Reinmüller, Jan Gustén, Johan Nordenadler
{"title":"Clothing Systems in Operating Rooms - A Comparative Study","authors":"B. Ljungqvist, Berit Reinmüller, Jan Gustén, Johan Nordenadler","doi":"10.17764/1098-4321.58.1.20","DOIUrl":"https://doi.org/10.17764/1098-4321.58.1.20","url":null,"abstract":"The number of airborne bacteria-carrying particles in the operating room is considered an indicator of the risk of infections to the patient undergoing surgery. When the supply air in the operating room is HEPA-filtered, the main source of microorganisms is people (patient and staff). The filtration efficacy of the fabric in operating clothing systems plays an important role. The design of the clothing systems also affects the number of particles emitted from people into the air of the operating room. In ultraclean operating rooms, the selection of clothing systems for the operating team should be considered in terms of patient safety. Examples of clothing systems evaluated in operating rooms will be presented. The predicted influence of different clothing systems in the operating room will be discussed.","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"58 1","pages":"20-23"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67781444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Implementing Multidisciplinary Research Center Infrastructure-A Trendsetting Example: SUNUM 实施多学科研究中心基础设施——一个引领潮流的例子:SUNUM
Journal of the IEST Pub Date : 2014-10-29 DOI: 10.17764/JIET.57.1.U435HL4721J1858V
B. Birkan, V. Ozguz
{"title":"Implementing Multidisciplinary Research Center Infrastructure-A Trendsetting Example: SUNUM","authors":"B. Birkan, V. Ozguz","doi":"10.17764/JIET.57.1.U435HL4721J1858V","DOIUrl":"https://doi.org/10.17764/JIET.57.1.U435HL4721J1858V","url":null,"abstract":"Sabanci University Nanotechnology Research and Application Center (SUNUM) became operational in January 2012. SUNUM is a trendsetting example of a green and flexible research facility that is a test bed for the cost-effective operation of a Centralized Demand-Controlled Ventilation (CDCV) system, a state-of-the-art cleanroom, and world-class high technology equipment. The total investment in the facility was US$35 million.","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"57 1","pages":"35-46"},"PeriodicalIF":0.0,"publicationDate":"2014-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67808539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anatomy of a HALT HALT的解剖
Journal of the IEST Pub Date : 2014-10-29 DOI: 10.17764/jiet.57.1.k52757322222m365
H. Schwab
{"title":"Anatomy of a HALT","authors":"H. Schwab","doi":"10.17764/jiet.57.1.k52757322222m365","DOIUrl":"https://doi.org/10.17764/jiet.57.1.k52757322222m365","url":null,"abstract":"A Highly Accelerated Life Test (HALT) consists of much more than simply subjecting a product to extreme environments to discern potential design weaknesses. Before testing, careful attention must be paid to planning, hardware and equipment availability, and ensuring the appropriate personnel are involved. The test must also include reviews of any potential hardware failures and the procedure for handling them. After test completion, a report must be written to document the entire procedure and any lessons learned. This article covers the entire anatomy of a HALT test from inception to final report.","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"57 1","pages":"57-62"},"PeriodicalIF":0.0,"publicationDate":"2014-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67808894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selecting the Best ALT 选择最佳ALT
Journal of the IEST Pub Date : 2014-10-29 DOI: 10.17764/JIET.57.1.V0152402158H8774
F. Schenkelberg
{"title":"Selecting the Best ALT","authors":"F. Schenkelberg","doi":"10.17764/JIET.57.1.V0152402158H8774","DOIUrl":"https://doi.org/10.17764/JIET.57.1.V0152402158H8774","url":null,"abstract":"Throughout the many years of accelerated life testing (ALT) development, colleagues have found numerous ways to take advantage of the interaction of stress and failure mechanisms.[1-14] In an ideal situation, the reliability engineer will have ample time, samples, test resources, and knowledge to conduct ALT. However, this is often not the case. Trading off the risks in conducting ALT and meeting the myriad constraints and expectations is a challenge. Understanding the basics of ALT approaches and associated assumptions permits test designers to select the ALT method that will provide meaningful results in time for technical and business decisions while meeting budgetary and risk-tolerance limits. There is no single way to design ALT for a specific set of conditions, but clearly articulating the tradeoffs involved permits the entire design team to fully understand the test results. The \"best\" ALT is a method that adds value to the design process. The most accurate results would involve testing all the pro...","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"57 1","pages":"47-56"},"PeriodicalIF":0.0,"publicationDate":"2014-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67808591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ISO Technical Committee on Cleanrooms and Associated Controlled Environments Enters Third Decade with New Changes on Horizon ISO洁净室及相关受控环境技术委员会进入第三个十年，新的变化即将出现
Journal of the IEST Pub Date : 2014-10-29 DOI: 10.17764/JIET.57.1.K8560855151101N8
D. Ensor
{"title":"ISO Technical Committee on Cleanrooms and Associated Controlled Environments Enters Third Decade with New Changes on Horizon","authors":"D. Ensor","doi":"10.17764/JIET.57.1.K8560855151101N8","DOIUrl":"https://doi.org/10.17764/JIET.57.1.K8560855151101N8","url":null,"abstract":"ISO Technical Committee (TC) 209: \"Cleanrooms and associated controlled environments\" produced many significant standards during its first 20 years of existence. Much remains to be accomplished, however, as the committee is on the verge of completing revisions to two major standards while it also embarks on creating vital new documents.","PeriodicalId":35935,"journal":{"name":"Journal of the IEST","volume":"57 1","pages":"29-34"},"PeriodicalIF":0.0,"publicationDate":"2014-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67809016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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