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rapid Identification of rice Samples Using an electronic Nose

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Journal of Bionic engineering 2009年第3期6卷 290-297页

作者： John Westbrook W.C.Hoffmann r.e.lacey USDA-ArS College Station Department of Biological and Agricultural engineering Texas A&M UniversityCollege Station

Four rice samples of long grain type were tested using an electronic nose (Cyranose-320).Samples of 5 g of each var.e.y of rice were placed individually in vials and were analyzed with the electronic nose unit consisting of 32 polymer *** Cyranose-320 was able to differentiate between var.e.ies of *** chemical composition of the rice odors for differentiating rice samples needs to be *** optimum parameter settings should be considered during the Cyranose-320 training process especially for multiple samples,which are helpful for obtaining an accurate training model to improve identification ***,it is necessary to investigate the e-nose sensor selection for obtaining better classification accuracy.A re- duced number of sensors could potentially shor.e. the data processing time,and could be used to establish an application pro- cedure and reduce the cost for a specific electronic *** research is needed for developing analytical procedures that adapt the Cyranose-320 as a tool for testing rice quality.

关键词： rice grain identification electronic nose data analysis pattern recognition

Multisensor Data Fusion for High Quality Data Analysis and Processing in Measurement and Instrumentation

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Journal of Bionic engineering 2007年第1期4卷 53-62页

作者： Yan-bo Huang Yu-bin Lan W. C. Hoffmann r. e. lacey USDA ArS Agricultural engineer Areawide Pest Management Research Unit Texas 77845 USA Biological and A g ricultural engineering Department Texas A ＆M University Texas 77843-2117 USA

Multisensor data fusion （MDF） is an emerging technology to fuse data from multiple sensors in or.e. to make a more accurate estimation of the environment through measurement and detection. Applications of MDF cross a wide spectrum in military and civilian areas. With the rapid evolution of computers and the proliferation of micro-mechanical/electrical systems sensors, the utilization of MDF is being popularized in research and applications. This paper focuses on application of MDF for high quality data analysis and processing in measurement and instrumentation. A practical, general data fusion scheme was established on the basis of feature extraction and mer.e.of data from multiple sensors. This scheme integrates artificial neural networks for high performance pattern recognition. A number of successful applications in areas of NDI （Non-Destructive Inspection） corrosion detection, food quality and safety characterization, and precision agriculture are described and discussed in or.e. to motivate new applications in these or other areas. This paper gives an overall picture of using the MDF method to increase the accuracy of data analysis and processing in measurement and instrumentation in different areas of applications.

关键词： multisensor data fusion artificial neural networks NDI food quality and safety characterization precision agriculture

Multisensor Data Fusion for High Quality Data Analysis and Processing in Measurement and Instrumentation

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Multisensor Data Fusion for High Quality Data Analysis and P...

Capsule endoscopy in suspected small bowel Crohn's disease:economic impact of disease diagnosis and treatment

The International Conference of Bionic engineering(ICBe’06)

作者： Hoffmann W.C. lacey r.e. USDA ArS Agricultural engineerAreawide Pest Management research Unit Biological and Agricultural engineering DepartmentTexas A&M University

＜正＞Multisensor data fusion is an emerging technology to fuse data from multiple sensors in or.e. to make a more accurate estimation of the environment through measurement and *** of multisensor data fusion cross a wide spectrum in military and civilian *** the rapid evolution of computers and the proliferation of micro-mechanical/electrical systems sensors,the utilization of multisensor data fusion is being popularized in research and *** paper focuses on application of multisensor data fusion for high quality data analysis and processing in measurement and instrumentation.A practical,general data fusion scheme is established on the basis of feature extraction and mer.e.of data from multiple *** scheme integrates artificial neural networks fur high performance pattern recognition. A number of successful applications in areas of NDI （Non-Destructive Inspection） corrosion detection,food quality and safety characterization,and precision agriculture are described and discussed in or.e. to motivate new applications in these or other *** paper gives an overall picture of using the multisensor data fusion method to increase the accuracy of data analysis and processing in measurement and instrumentation in different areas of applications.

关键词： multisensor data fusion artificial neural networks NDI food quality and safety characterization precision agriculture

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World Journal of Gastr.e.terology 2009年第45期15卷 5685-5692页

作者： Jonathan A Leighton Ian M Gralnek randel e richner Michael J lacey Frank J Papatheofanis Division of Gastr.e.terology and Hepatology Mayo Clinic ScottsdaleAZ 85259United States rappaport Faculty of Medicine Technion-Israel Institute of Technology GI Outcomes Unit Departments of Gastroenterology and Ambulatory Care Services Rambam Health Care Campus The Neocure Group SherbornMA 01770 United States Division of Health Policy Departments of Radiology and Economics University of California San DiegoSan Diego CA 92103United States

AIM: To model clinical and economic benef its of capsule endoscopy (Ce) compared to ileo-colonoscopy and small bowel follow-through (SBFT) for.e.aluation of suspected Crohn’s disease (CD). MeTHODS: Using decision analytic modeling, total and yearly costs of diagnostic work-up for suspected CD were calculated, including procedure-related adver.e.events, hospitalizations, off ice visits, and medications. The model compared Ce to SBFT following ileo-colonoscopy and secondarily compared Ce to SBFT for initial evaluation. reSULTS: Aggregate char.e. for newly diagnosed, medically managed patients are approximately $8295. Patients requiring aggressive medical management costs are $29 508; requiring hospitalization, $49 074. At sensitivity > 98.7% and specifi city of > 86.4%, Ce is less costly than SBFT. CONCLUSION: Costs of Ce for diagnostic evaluationof suspected CD is comparable to SBFT and may be used immediately following ileo-colonoscopy.

关键词： Capsule endoscopy Costs Crohn's disease Disease management

Analysis of variograms with various sample sizes from a multispectral image

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International Journal of Agricultural and Biological engineering 2009年第4期2卷 62-69页

作者： Huihui Zhang Yubin Lan ronald e.lacey Yanbo Huang W.Clint Hoffmann D.Martin G.C.Bora Department of Biological and Agricultural engineering Texas A&M UniversityCollege StationTexasUSA USDA-ArS 2771 F&B RoadCollege StationTexasUSA USDA-ArS 141 Experiment Station RoadStonevilleMississippiUSA Department of Agriculture and Biosystems engineering North Dakota State University FargoNorth DakotaUSA

Variogram plays a crucial role in remote sensing application and *** is very important to estimate variogram reliably from sufficient *** this study,the analysis of variograms computed on various sample sizes of remotely sensed data was conducted.A 100×100-pixel subset was chosen randomly from an aerial multispectral image which contains thr.e.wavebands,Gr.e.,red and near-infrared(NIr).Gr.e.,red,NIr and Normalized Difference Vegetation Index(NDVI)datasets were impor.e. into r software for spatial *** of these four full image datasets and sub-samples with simple random sampling method were *** this case,half size of the subset image data was enough to reliably estimate the variograms for NIr and red *** map the variation on NDVI within the weed field,ground sampling interval should be smaller than 12 *** information will be particularly important for Kriging and also give a good guide of field sampling on the weed field in the future study.

关键词： variogram multispectral image geostatistics

中国e抗原阳性慢性乙型肝炎抗病毒治疗方案的经济学评价

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中华肝脏病杂志 2007年第6期15卷 431-436页

作者： Larry lacey 卢宪中 Alison Tan lacey Solutions Ltd. The Beaches South StrandSkerries Co. Dublin. Rep. of Ireland 葛兰素史克（中国）投资有限公司上海分公司

目的对HBeAg阳性慢性乙型肝炎短期和长期的抗病毒治疗方案进行经济学评价。方法建立包含10个健康状态的Markov模型,估计不同方案治疗HBeAg阳性CHB患者的长期效果和费用,并进行增量分析。结果与非抗病毒治疗相比,拉米夫定治疗1年是具... 详细信息

目的对HBeAg阳性慢性乙型肝炎短期和长期的抗病毒治疗方案进行经济学评价。方法建立包含10个健康状态的Markov模型,估计不同方案治疗HBeAg阳性CHB患者的长期效果和费用,并进行增量分析。结果与非抗病毒治疗相比,拉米夫定治疗1年是具有高度成本效果的短期治疗方案;拉米夫定治疗必要时换用阿德福韦,或者阿德福韦治疗必要时换用拉米夫定作挽救用药治疗5年,可以更持续地延缓疾病进展。与拉米夫定治疗1年相比,更具成本效果的长期治疗方案则是拉米夫定＋阿德福韦,或者阿德福韦＋拉米夫定作为挽救用药治疗5年,每单位质量调整生命年的增量费用分别为25 115元和35 577元,分别比国际阈值的中国估计值低55．2％和36.5％。结论在HBeAg阳性CHB短期治疗方案中,拉米夫定比IFNα、恩替卡韦、聚乙二醇干扰素α-2a和非抗病毒治疗更具成本效果。在长期治疗方案中,拉米夫定＋阿德福韦或阿德福韦＋拉米夫定挽救治疗均具有成本效果。

关键词：肝炎乙型慢性评价研究经济学药学

中国HBeAg阴性慢性乙型肝炎抗病毒治疗方案的经济学评价

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中华传染病杂志 2007年第8期25卷 473-479页

作者： Larry lacey 卢宪中 Alison Tan laceySolutions Ltd SkerriesRepublic of Ireland 葛兰素史克(中国)投资有限公司上海分公司

目的从中国医疗系统的角度,对HBeAg阴性慢性乙型肝炎(乙肝)短期和长期抗病毒治疗方案进行经济学评价。方法建立包含10个健康状态的Markov模型,估计不同方案治疗HBeAg阴性慢性乙肝患者的长期效果和费用,并进行增量分析。结果与非抗病毒... 详细信息

目的从中国医疗系统的角度,对HBeAg阴性慢性乙型肝炎(乙肝)短期和长期抗病毒治疗方案进行经济学评价。方法建立包含10个健康状态的Markov模型,估计不同方案治疗HBeAg阴性慢性乙肝患者的长期效果和费用,并进行增量分析。结果与非抗病毒治疗比较,最具成本效果的短期治疗方案是拉米夫定治疗1年;拉米夫定治疗必要时换用阿德福韦,或阿德福韦治疗必要时换用拉米夫定作为挽救治疗5年,可更持续地延缓疾病进展。与拉米夫定治疗1年比较,最具成本效果的长期治疗方案是拉米夫定+阿德福韦,或阿德福韦+拉米夫定作为挽救治疗5年,每单位质量调整生命年(QALY)的增量费用分别为16 465元和17 884元,分别比国际阈值的中国估值低70.6%和68.1%。结论HBeAg阴性慢性乙肝短期治疗方案中,拉米夫定比恩替卡韦、聚乙二醇干扰素α-2a和非抗病毒治疗更具成本效果;长期治疗方案中,拉米夫定加阿德福韦或阿德福韦加拉米夫定挽救治疗均具有成本效果。

关键词：肝炎e抗原乙型肝炎乙型慢性 Markov模型费用效益分析

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抑制地层破坏的几种特殊泥浆

国外地质勘探技术 1980年第5期 17-19页

作者： D.G.Feuerbacher.e.S.lacey 胡梅海

地层产生破坏,这是油田花费代价最大的问题之一,由于受到某种形式的破坏,减少了地层原有的渗透性,因而亿万桶原油和亿万立方英尺天然气白白损失了。特别是根据美国从外国进口石油的情况,必须尽一切努力来消除地层破坏或减少到最低限度... 详细信息

地层产生破坏,这是油田花费代价最大的问题之一,由于受到某种形式的破坏,减少了地层原有的渗透性,因而亿万桶原油和亿万立方英尺天然气白白损失了。特别是根据美国从外国进口石油的情况,必须尽一切努力来消除地层破坏或减少到最低限度。众所周知,要从地下获得任何一种碳氢化合物,首先是钻一口井,为此要尽力抑制地层破坏。泥浆构成钻井作业的"生命的血

关键词：地层泥浆体系水乳化液井眼机械钻速纯钻速碎屑岩页岩冲洗液钻井液

文献快报(4):童年期不良经历与成年后慢性炎症存在相关

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中国学校卫生 2021年第7期42卷 1055-1055页

作者：袁静怡(编译) 孙莹(审校) IOB e lacey r STePTOe A 安徽医科大学公共卫生学院儿少卫生与妇幼保健学系合肥230032 不详

暴露于童年期不良经历(adver.e.childhood exper.e.ces,ACes)可导致应激诱导的炎症和神经内分泌过程上调。近期,伦敦大学学院的Steptoe教授及其团队基于“英国老龄化纵向研究”(english Longitudinal Study of Ageing)的数据,在老年人... 详细信息

暴露于童年期不良经历(adver.e.childhood exper.e.ces,ACes)可导致应激诱导的炎症和神经内分泌过程上调。近期,伦敦大学学院的Steptoe教授及其团队基于“英国老龄化纵向研究”(english Longitudinal Study of Ageing)的数据,在老年人群中探讨了ACes对慢性炎症指标——C反应蛋白(CrP)的影响。

关键词：伦敦大学学院慢性炎症应激诱导老年人群神经内分泌童年期不良经历纵向研究 ACe