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RE-ENGINEERING TRANSFORMER MAINTENANCE PROCESSES TO IMPROVE CUSTOMIZED SERVICE DELIVERY

journal of Systems Science and Systems Engineering 2011年第3期20卷 323-345页

作者： Amy j.C. TRAPPEY Yong SUN Charles V. TRAPPEY Lin MA Department of Industrial Engineering and Engineering Management National Tsing Hua University Taiwan China Department of Industrial Engineering and Management National Taipei University of Technology Taiwan China School of Engineering Systems Queensland University of Technology Australia Department of Management Science National Chiao Tung University Taiwan China

The outage of a transformer in a power generation system will generally result in a shutdown of the entire system. Consequentially, large amounts of revenue are lost to the plant owner with a substantial negative impact on the civil community and industrial customers. This paper analyzes the current maintenance practices （i.e., an as-is process model） of a transformer manufacturing company, which provides maintenance services to power generation plants and reports the major weaknesses in current business practices. The maintenance weaknesses include isolated processes and paper based information communication. These inefficient processes result in service delays, cost increases, and inappropriate responses to customers＇ specific requests and complaints. To improve the efficiency and flexibility of the entire transformer maintenance service system, an e-integration approach is implemented with three key tasks. First, the current business processes are re-engineered to provide an improved （to-be） business model. Then, we replace paper based documentation methods with an electronic filing system for efficient and cost-effective information exchange. Afterward, the improved process model is implemented as an Internet based system to enhance the interactions among the transformer manufacturer, end-users, and service contractors for customized maintenance services. The case study demonstrates that implementing the e-integration approach increases the efficiency and effectiveness of the customized maintenance services.

关键词： Business Processes Reengineering (BPR) asset maintenance power industry after-sales services transformers engineering

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Relationship between pro-and anti-inflammatory cytokines profiles and some haematological parameters in some Cameroonians infected with Onchocerca volvulus

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Asian Pacific journal of Tropical Medicine 2012年第9期5卷 713-717页

作者： Nmorsi OPG Nkot BP Isaac C Che j Tropical Disease Research Unit Department of ZoologyAmbrose Alli UniversityEkpomaNigeria

Objective:To investigate the relationship between white blood cells,lymphocytes,monocytes, and Interleukin(IL)-1α,***-10 and IL-13 production in Cameroonians with Onchocerca volvulus(***) ***:A lolal of 357 individuals from five sites at Upper *** and Sanaga Maritime divisions and located along Sanaga valley of Sanaga River in South Cameroon were screened for the presence of *** using the skin *** levels of the interleukins(IL-) namely IL-1α,IL-6,IL-10 and IL-13 were evaluated using enzyme linked immunoabsorbent assay *** parameters were evaluated using standard laboratory automated ***:*** microfilariae were found in skin tissues of 85(23.81%) *** mean interleukin(IL-) levels in the 0,volvulus control and infected individuals were IL-1αin(1.65±0.79 and 2.31±0.5) pg/ml.:IL-6 in(278.36±55.34 and 20l.74±34.56) pg/ml.:IL-10 in(436.03±208.64 and 418.49±I47.88) pg/*** IL-13 in(8.98±7.28 and 3S.06±11.92) pg/*** was a negative correlation between monocyte counts and IL-10 concentration in positive individuals.A negative correlation of IL-6 with while blood cell and lymphocyte counts was observed(P<0.05).The level of IL-13 was positively associated with microfilaria]load(P<0.05).Conclusions:We observed depressed IL-6 and raised IL-13 concentrations in the sera of individuals with onchocerciasis which implicate these interleukins in the immunological responses of the ***,these IL-6 and IL-13 are associated with *** infection among Cameroonians.

关键词： Pro inflammatory cytokines Anti inflammatory cytokines Haematological parameters Onchocerca volvulus Cameroonians Microfilarial load

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Meiosis:Recent Progress and New Opportunities

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journal of Genetics and Genomics 2014年第3期41卷 83-85页

作者： Hong Ma Howard j.Cooke Qinghua Shi State Key Laboratory of Genetic Engineering Institute of Plant BiologySchool of Life SciencesFudan University CAS Institute of Physics Hefei National Laboratory for Physical Sciences at MicroscaleSchool of Life SciencesUniversity of Science and Technology of China MRC Human Genetics Unit and Institute of Genetics and Molecular Medicine University of Edinburgh

Sexual reproduction in diploid organisms requires the production of haploid gametes via the process of meiosis, in which a single round of DNA replication is followed by two consecutive cell divisions （or two nuclear divisions and one cytokinesis）. In the majority of known cases the proper segregation of the parental genome into gametes is accom- panied and facilitated by meiotic crossover formation, which contributes to physical association between homologous chromosomes and results in the generation of new combina- tions of alleles in the progeny. This is necessarily a complex and highly regulated process with multiple steps in a tight sequence, including exit from mitosis, DNA double strand break （DSB） formation, homology search, recombinational repair of DSBs and regulation of cohesion between homolo- gous chromosomes. The process of meiosis is astonishingly effective, even in mammals and flowering plants with extremely large genomes, in which this entails the manipula- tion of approximately twelve metres or even more of the replicated diploid DNA, on the order of 10^10 base pairs, with close to base pair accuracy. In plants, meiosis does not pro- duce gametes directly, but progenitors of haploid multicellular structures called gametophytes, which contain haploid cells that differentiate into gametes.

关键词： Meiosis

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A comparative study on H_2S removal using Mg–Al spinel(MgAl_2O_4) and MgO/Al_2O_3 nanocomposites

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Chinese journal of Chemical Engineering 2017年第9期25卷 1329-1334页

作者： S.M.Latifi j.Bakhshi Azghandi A.Salehirad M.Parvini Department of Chemical Technology Iranian Research Organization for Science & Technology Chemical Engineering Oil &Gas Semnan University

In this work MgO/Al_2O_3 nanocomposites with weight ratios from 5% to 25% were synthesized by precipitationimpregnation method and their structural properties were characterized. In the next step, the capability of the nanocomposites in H_2S removal compared to Mg–Al spinel(MgAl_2O_4), synthesized through ion-pair complex precursor route and alumina samples, prepared via sol–gel precipitation methods, was investigated. The results indicated that among the studied sorbents Mg–Al spinel presents a distinctly higher H_2S removal. In addition, the MgO/Al_2O_3 nanocomposites compared to the alumina sorbents, exhibited much better performance in H_2S removal. Also CO_2-TPD analysis reveals higher amounts of basic sites for Mg–Al spinel compared to 25 wt% MgO/75 wt% Al_2O_3 nanocomposite.

关键词： Nanomaterials Adsorption Alumina Desulfurization MgO

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Highlights in applications of nanotechnology in radiation research

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Chinese journal of Cancer Research 2013年第5期25卷 613-614页

作者： Nancy Q.Zhong Molly j.Wang Editorial Office Translational Cancer Research

Translational Cancer Research （Transl Cancer Res; TCR; Print ISSN： 2218-676X; Online ISSN 2219-6803; www. ***） launched in August 2013 a special issue on Applications of Nanotechnology in Radiation Research inviting Prof. Rao V.L. Papineni from University of Kansas Medical Center, Pataje G.S. Prasanna from National Cancer Institute and Mansoor M. Ahmed, National Cancer Institute to serve as the Guest Editors.

关键词： ISSN Highlights in applications of nanotechnology in radiation research

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The hepatitis B virus-associated tumor microenvironment in hepatocellular carcinoma

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National Science Review 2014年第3期1卷 396-412页

作者： Pengyuan Yang Geoffrey j.Markowitz Xiao-Fan Wang Department of Pharmacology and Cancer Biology Duke University Medical Center CAS Key Laboratory of Infection and Immunity Institute of Biophysics Chinese Academy of Sciences

In contrast to a majority of cancer types, the initiation of hepatocellular carcinoma(HCC) is intimately associated with a chronically diseased liver tissue, with one of the most prevalent etiological factors being hepatitis B virus(HBV). Transformation of the liver in HBV-associated HCC oten follows from or accompanies long-term symptoms of chronic hepatitis, inlammation and cirrhosis, and viral load is a strong predictor for both incidence and progression of HCC. Besides aiding in transformation, HBV plays a crucial role in modulating the accumulation and activation of both cellular components of the microenvironment,such as immune cells and ibroblasts, and non-cellular components of the microenvironment, such as cytokines and growth factors, markedly inluencing disease progression and prognosis. his review will explore some of these components and mechanisms to demonstrate both underlying themes and the inherent complexity of these interacting systems in the initiation, progression, and metastasis of HBV-positive HCC.

关键词： hepatitis B hepatocellular carcinoma tumor microenvironment leukocytes cytokines growth factors

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Analysis of High Frequency Data in Finance:A Survey

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Frontiers of Economics in China-Selected Publications from Chinese Universities 2020年第2期15卷 141-166页

作者： George j.jiang Guanzhong Pan Department of Finance and Management Science College of BusinessWashington State UniversityPullmanWA 99164USA School of Finance Yunnan University of Finance and EconomicsKunming 650221China

This study examines the use of high frequency data in finance,including volatility estimation and jump *** frequency data allows the construction of model-free volatility measures for asset *** variance is a consistent estimator of quadratic variation under mild regularity *** variation concepts,such as power variation and bipower variation,are useful and important for analyzing high frequency data when jumps are *** frequency data can also be used to test jumps in asset *** discuss three jump tests:bipower variation test,power variation test,and variance swap test in this *** presence of market microstructure noise complicates the analysis of high frequency *** survey introduces several robust methods of volatility estimation and jump tests in the presence of market microstructure ***,some applications of jump tests in asset pricing are discussed in this article.

关键词： high frequency data quadratic variation(QV) realized variance(RV) power variation(PV) bipower variation jump tests market microstructure noise asset pricing

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Remodeling neuroscience education in medical student training:how early exposure and mentorship are promoting student interest in neurology and neurosurgery

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Neural Regeneration Research 2016年第7期11卷 1064-1066页

作者： Andrew D.Tieniber William j.Readdy Rutgers Robert Wood johnson Medical School New BrunswickNew Jersey NJ USA

Exposure to clinical neurology is an essential aspect of a young clinician＇s training. Neuroscience forms the cornerstone of a wide variety of clinical pathologies and many believe it is currently under represented in medical education. This phenomenon persists as the rapidly aging population places an increasing burden on neuromedical specialists. This demographic change, compounded by the expected 19% shortage in clinical neurologists by 2025, makes it imperative to reexamine specific aspects of neuro- medical education （Dall et al., 2013）. These aspects include the timing of pre-clinical neuroscience education, the presence of faculty supported interest groups, the existence of formal mentorship programs, and the availability of neurology and neurosurgical clerkships to 3rd year medical students. Given the increasing importance of neuromedi- cal training, several recent studies have examined the state of neurology training in modern medical education and its impact on medical graduates.

关键词： neuroscience neurosurgery Neuroscience clinician exposure currently burden match publications profession

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Discovery of an Inverted DNA Repeat Required for nodD Gene Transcription

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Chinese Science Bulletin 1994年第21期39卷 1828-1829页

作者：毛成建洪国藩 j.A.Dowine Shanghai Institute of Biochemistry Shanghai 200031 PRC john Innes Institute NorwchNR4 7UHUK

It has been demonstrated that there are 13 genes in R. leguminosarum responsible for nodule formation on legume *** genes are named nod genes,nodD is a regulatory gene,which has two functions:(i) the nodD product (NodD)

关键词： inverted DNA repeat nodulation genes.

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A CONVENIENT PROCEDURE TO PREPARE TRICYCLODECANE

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Chinese Chemical Letters 1995年第1期6卷 1-4页

作者： Yang, XT Zheng, j Huang, MY jiang, YY Acad Sinica Inst Chem Beijing 100080 Peoples R China

A magnesium oxide suppported-polytitazane-platinum complex has been prepared and used to catalyze the hydrogenation of dicyclopentadiene. This complex was very active and stable in the reaction. Dicyclopentadiene could be completely hydrogenated to tricyclo[5.***.1.0(2,6)]decane in 100% yield at 60 degreesC and under atmospheric hydrogen pressure.

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