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A Cell-based smoothed Finite Element Method for Modal Analysis of Non-woven Fabrics

Computers, Materials & Continua 2021年第6期67卷 2765-2795页

作者： Nguyen T.Quyen N.Dourado A.j.P.Gomes F.b.N.Ferreira C2T—Centro de Ciência e Tecnologia Têxtil Departamento de Engenharia TêxtilUniversidade do MinhoCampus de AzurémGuimarães4804-533Portugal CMEMs-UMinho Departamento de Engenharia MecânicaUniversidade do MinhoCampus de AzurémGuimarães4804-533Portugal Department of Computer science Universidade da Beira InteriorConvento de Sto.AntónioCovilhã6201-001Portugal Instituto de Telecomunicações R.Marquês deÁvila e BolamaCovilhã6201-001Portugal

The combination of a 4-node quadrilateral mixed interpolation of tensorial components element(MITC4)and the cell-based smoothed finite element method(CsFEM)was formulated and implemented in this work for the analysis of free vibration and unidirectional buckling of shell *** formulation was applied to numerous numerical examples of non-woven *** CsFEM schemes do not require coordinate transformation,spurious modes and numerical instabilities are prevented using bilinear quadrilateral element subdivided into two,three and four smoothing *** improvement of the original CsFEM formulation was made regarding the calculation of outward unit normal vectors,which allowed to remove the integral operator in the strain smoothing *** procedure conducted both to the simplification of the developed formulation and the reduction of computational cost.A wide range of values for the thickness-to-length ratio and edge boundary conditions were *** developed numerical model proved to overcome the shear locking phenomenon with success,revealing both reduced implementation effort and computational cost in comparison to the conventional FEM *** cell-based strain smoothing technique used in this work yields accurate results and generally attains higher convergence rate in energy at low computational cost.

关键词： Mindlin-Reissner theory of plates shear-locking gradient/strain smoothing technique non-woven fabric

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Visualizing light-induced dynamic structural transformations of Au clusters-based photocatalyst via in situ TEM

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Nano Research 2021年第8期14卷 2805-2809页

作者： bo weng Youhong jiang Hong-Gang Liao Maarten b.j.Roeffaers Feili Lai Haowei Huang Zichao Tang state Key Laboratory for Physical Chemistry of solid surfaces Collaborative Innovation Center of Chemistry for Energy MaterialsCollege of Chemistry and Chemical Engineering Xiamen UniversityXiamen 361005China cMACs Department of Microbial and Molecular SystemsKU LeuvenCelestijnenlaan 200F3001 LeuvenBelgium Department of Chemistry KU LeuvenCelestijnenlaan 200F3001 LeuvenBelgium

Ultrasmall gold(Au)clusters have been regarded as one of the prototypes materials for solar energy conversion due to their unique strong molecular-like light absorption ***,the light-induced aggregation of Au clusters into nanoparticles is one of the most important factors that restricts its application in *** Au clusters aggregation has been widely demonstrated,the underlying mechanism for cluster fusion is still unclear due to the lack of experimental ***,we report the direct observation of Au clusters on TiO_(2) nanosheets aggregating when used as visible light photocatalysts for the reduction of *** in situ high-resolution transmission electron microscopy(TEM),the coexistence of two fusion mechanisms of Au clusters on TiO_(2) under ultraviolet-visible(UV-Vis)light irradiation in air is identified,i.e.,the migration and coalescence(MC)and Ostwald ripening(OR).Additionally,the correlation between the photostability of Au clusters and reaction atmospheres has been investigated,among which Au clusters have higher stability in an inert N_(2) atmosphere or vacuum than the oxidizing atmospheres(i.e.,air and O_(2)).These results indicate the inherent stability of Au cluster during photocatalysis,and instability comes from the consuming of ligand *** work not only discloses the underlying mechanism of Au cluster sintering but also provides guidelines for enhancing metal clusters-based photocatalysts stability.

关键词： photocatalysis dynamic structural transformation Au clusters in situ TEM

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采用短积累时间的超视距雷达检测海上船只

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雷达与对抗 1998年第3期18卷 11-15页

作者： j.A.奥尔金 w.C.诺林 j.R.巴纳姆

采用高频超视距雷达定位并跟踪海上航行的船只通常需要较长的相干积累时间（ＣＩＴ），并对现有较匮乏的雷达资源提出了较高的要求。本文以可能比标准傅里叶技术短的相干积累时间，采用现代频谱分析技术（ＭＳＡＴ）在多普勒空间对杂波... 详细信息

采用高频超视距雷达定位并跟踪海上航行的船只通常需要较长的相干积累时间（ＣＩＴ），并对现有较匮乏的雷达资源提出了较高的要求。本文以可能比标准傅里叶技术短的相干积累时间，采用现代频谱分析技术（ＭＳＡＴ）在多普勒空间对杂波和噪声中的船只进行定位。利用信号结构的统计知识得到ＭＳＡＴ的多普勒“超高分辨率”。本文讨论了统计假设的特性并概括介绍了潜在的问题。我们采用的ＭＳＡＴ是Ｔｕｆｔｓ和Ｋｕｍａｒｅｓａｎ提出的技术的变形，它具有确定由自回归模型表示的极点数的信息理论准则以及用以提供Ｆｒｉｅｄｌａｎｄｅｒ建议的精确ＳＮＲ估值的附加步骤。通过增加预处理过程，形成滤波器来消除Ｂｒａｇｇ线，我们对ＭＳＡＴ作了进一步的改进。根据加利福尼亚宽孔径研究设施（ＷＡＲＦ）和美国海军可再定位ＯＴＨＲ（ＲＯＴＨＲ－ＶＡ）上收集的数据对此算法进行了测试。在这两种情况下，ＣＩＴ通常下降３８倍而分辨率无损失。在稍好一些的条件下，以仅２ｓ的ＣＩＴ便可定位Ｂｒａｇｇ线附近的船只，这和飞机检测采用的ＣＩＴ一样。

关键词：超视距雷达检测海船

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细胞色素P-450 CYP2D6基因分型与表型的吻合率<英文>

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中国药理学报 1999年第7期20卷 585-588页

作者：陈枢青 Peter j wEDLUND 浙江大学医学院生物化学教研室 Department of Pharmacology and Experiment Therapeutics College of PharmacyUniversity of Kentucky Lexington KY 40536 USA

目的:研究细胞色素P-450 2D6基因分型测定方法及其与表型的吻合率。方法:利用等位基因特异扩增法基本原理,对CYP2D6酶缺陷等位基因CYP2D6*3,*4,*6和*7进行测定。结果:通过168例基因分型,并将结果与表型对照,发现同时测定CYP2D6*3,*4,*6... 详细信息

目的:研究细胞色素P-450 2D6基因分型测定方法及其与表型的吻合率。方法:利用等位基因特异扩增法基本原理,对CYP2D6酶缺陷等位基因CYP2D6*3,*4,*6和*7进行测定。结果:通过168例基因分型,并将结果与表型对照,发现同时测定CYP2D6*3,*4,*6和*7等位基因时,125例快代谢者和43例慢代谢者的基因分型结果与表型结果的吻合率为100％。快代谢者至少有一个野生型CYP2D6等位基因,基因型为*1/*1,*1/*3和*1/*4。发现慢代谢者是CYP2D6突变型纯合子,基因型为*3/*4,*4/*4,*3/*6,*4/*7,*4/*6和*6/*6。结论:对CYP2D6*3,*4,*6和*7等位基因的测定能够准确预测其表型。

关键词：细胞色素P4-50 CYP2D6 吻合率基因分型

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全身放疗及应用免疫抑制剂后发生多发性汗腺汗孔瘤

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世界核心医学期刊文摘（皮肤病学分册） 2006年第11期2卷 8-9页

作者： Mahlberg M.j. McGinnis K.s. Draft K.s. Fakharzadeh s.s. 董平 Departments of Dermatology University of Pennsylvania School of Medicine Philadelphia United StatesDr.

Eccrine poromas are benign, adnexal tumors that most often occur as a solitary lesion on the palm or sole. The occurrence of multiple eccrine poromas is extremely rare. In this report, we describe the development of several eccrine poromas in an acral distribution in a 42-year-old man. before the appearance of these tumors, the patient had received total body irradiation and allogeneic bone marrow transplantation for treatment of acute lymphocytic leukemia. As a complication of the bone marrow transplant, the patient developed chronic graft-versus-host disease, which was treated with immunosuppressive therapy. we discuss this patient and review the available literature regarding multiple eccrine poromas.

关键词：汗孔瘤免疫抑制剂同种骨髓移植附件肿瘤掌跖肢端

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Expected energy spectrum of cosmic ray protons and helium below4 PeV measured by LHAAsO

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Chinese Physics C 2019年第7期43卷 86-96页

作者： L.Q.Yin s.s.Zhang Z.Cao b.Y.bi C.wang j.L.Liu L.L.Ma M.j.Yang Y.Zhang Z.Y.You Z.Z.Zong Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences University of Chinese Academy of science Institut für Astronomie und Astrophysik Eberhard Karls Universit?t Kunming University Institut de Physique Nucléaire d’Orsay IN2P3-CNRS Université Paris-Sud China Nuclear Power Engineering Co. Ltd.

The Large High Altitude Air shower Observatory(LHAAsO) is a composite cosmic ray observatory consisting of three detector arrays: kilometer square array(KM2 A), which includes the electromagnetic detector array and muon detector array, water Cherenkov detector array(wCDA) and wide field-of-view Cherenkov telescope array(wFCTA). One of the main scientific objectives of LHAAsO is to precisely measure the cosmic rays energy spectrum of individual components from 10^14 eV to 10^18 eV. The hybrid observation will be employed by the LHAAsO experiment, in which the lateral and longitudinal distributions of extensive air shower can be observed simultaneously. Thus, many kinds of parameters can be used for primary nuclei identification. In this paper, high purity cosmic ray simulation samples of the light nuclei component are obtained using multi-variable analysis. The apertures of 1/4 LHAAsO array for pure proton and mixed proton and helium(H&He) samples are 900 m^2 sr and1800 m^2 sr, respectively. Prospect of obtaining proton and H&He spectra from 100 TeV to 4 PeV is discussed.

关键词： LHAAsO hybrid measurement energy spectrum composition TMVA

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Prognostic value of baseline FDG uptake on PET-CT in esophageal carcinoma

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world journal of Gastrointestinal Oncology 2014年第5期6卷 139-144页

作者： Omar s Al-Taan Amar Eltweri David sharpe Peter M Rodgers sukhbir s Ubhi David j bowrey Departments of surgery University Hospitals of Leicester Departments of Radiology University Hospitals of Leicester

AIM: To evaluate the influence of baseline maximum standardized uptake value(sUVmax) on survival in a cohort of patients, undergoing positron emission tomography-computed tomography(PET-CT) scan for esophageal carcinoma. METHODs: The pre-treatment sUVmax numeric reading was determined in patients with confirmed esophageal or junctional cancer having PET-CT scan during the time period 1st january 2007 until 31 st july 2012. A minimum follow up of 12 mo was required. Patients were subdivided into quartiles according to sUVmax value and the influence of sUVmax on survival was assessed using univariate and multivariate analysis. The following pre-treatment factors were investigated: patient characteristics, tumor characteristics and planned treatment. REsULTs: The study population was 271 patients(191male) with esophageal or junctional carcinoma. The median age was 65 years(range 40-85) and histologic subtype was adenocarcinoma in 197 patients and squamous carcinoma in 74 patients. The treatment intent was radical in 182 and palliative in 89 patients. sUVmax was linked to histologic subtype(P = 0.008), tumor site(P = 0.01) and Union for International Cancer Control(UICC) stage(P sis, prognosis was significantly associated with sUVmax(P = 0.001), T-stage(P stage(P sis, only T-stage and UICC stage remained significant. CONCLUsION: Pretreatment sUVmax was not a useful marker in isolation for determining prognosis of patients with esophageal carcinoma.

关键词： Esophageal neoplasms Fluorodeoxyglucose F18 Positron emission tomography Positron emission tomography-computed tomography Prognosis

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Analysis of Compression Resistance and Oil Adsorption Capacity of Cellulose/NaOH Cryogels

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journal of Renewable Materials 2019年第3期7卷 227-234页

作者： Lídia K.Lazzari Vitória b.Zampieri Ademir j.Zattera Camila baldasso Center for Exact sciences and Technologies-University of Caxias do sul.1130 Francisco Getúlio Vargas Street Caxias do Sul95070-560Brazil

This work aimed at analyzing the petroleum adsorption capacity and the compressive strength of cellulose cryogels produced with the addition of 4 and 8%(w/w)sodium hydroxide(NaOH).Cryogels were produced from a 1.5%(m/m)suspension of cellulose microfibers,which originated from Pinus elliotti,in distilled *** addition of NaOH increased the compression strength of cryogel by 30% when compared to cryogel without the *** to the 50% decrease in volume,the cryogel FLNb-8h(8%NaOH)has its petroleum adsorption capacity decreased in average by 58%,whereas the FLNb-4(4%NaOH)cryogel had it only by 14%.The cellulose suspension which provided the best results for the properties of the cryogels tested had a 4%concentration of NaOH.

关键词： Cryogel cellulose NaOH adsorption compression resistance

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Celiac disease:Management of persistent symptoms in patients on a gluten-free diet

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world journal of Gastroenterology 2012年第12期18卷 1348-1356页

作者： David H Dewar suzanne C Donnelly simon D McLaughlin Matthew w johnson H julia Ellis Paul j Ciclitira King's College London Division of Diabetes and Nutritional SciencesDepartment of GastroenterologyThe Rayne InstituteSt Thomas' HospitalLondon SE1 7EHUnited Kingdom

AIM:To investigate all patients referred to our center with non-responsive celiac disease (NRCD),to establish a cause for their continued ***:we assessed all patients referred to our center with non-responsive celiac disease over an 18-mo *** individuals were investigated to establish the eitiology of their continued *** patients were first seen in clinic where a thorough history and examination were performed with routine blood work including tissue transglutaminase antibody *** were also referred to a specialist gastroenterology dietician to try to identift any lapses in the diet and sources of hidden gluten ingestion.A repeat small intestinal biopsy was also performed and compared to biopsies from the referring hospital where ***,lactulose hydrogen breath testing,pancreolauryl testing and computed tomography scan of the abdomen were undertaken if the symptoms *** clinical progress was followed over a minimum of 2 ***:One hundred and twelve consecutive patients were referred with *** were found not to have celiac disease (CD).Of the remaining 100 patients,45% were not adequately adhering to a strict gluten-free diet,with 24 (53%) found to be inadvertently ingesting gluten,and 21 (47%) admitting *** colitis was diagnosed in 12% and small bowel bacterial overgrowth in 9%.Refractory CD was diagnosed in 9%.Three of these were diagnosed with intestinal *** 2 years,78 patients remained well,eight had continuing symptoms,and four had ***:In individuals with NRCD,a remediable cause can be found in 90%:with continued gluten ingestion as the leading *** propose an algorithm for investigation.

关键词： Celiac disease Non-responsive celiac disea-se Refractory celiac disease Gluten Gluten-free diet

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令医生大失所望的临床信息系统:超越现有技术的机遇

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中国数字医学 2009年第3期4卷 77-81页

作者： M. j. ball j. s. silva s. bierstock j. V. Douglas A. F. Norcio j. Chakraborty j. srini 张林（译） IbM医疗保健管理研究中心不详白求恩国际和平医院核医学科／PET中心河北省石家庄市中山西路398号050082

目的：旨在论述当前的临床信息系统为何惨遭失败。方法：对过去几十年临床信息系统的发展进行主观分析。结果与讨论：富有挑战性的难题就是预先考虑到临床医生们到底需要什么样的信息，继而专门针对他们的独特视角。为其提供这些信息。... 详细信息

目的：旨在论述当前的临床信息系统为何惨遭失败。方法：对过去几十年临床信息系统的发展进行主观分析。结果与讨论：富有挑战性的难题就是预先考虑到临床医生们到底需要什么样的信息，继而专门针对他们的独特视角。为其提供这些信息。临床医生需要的是那些能够提供由用户决定的。最大可能程度灵活性和用户化的工作站。我们设想并概括介绍了一种所谓的医疗服务点工作站。这种工作站能够在形形色色的医疗信息系统范围内，自动适应用户所需的显示方式、硬件能力、操作系统以及（本地或分布式的）应用程序。

关键词：临床工作站卫生专业人员工作站临床信息系统医疗信息系统

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