检索结果-南通市图书馆

Influence of Component Size on the Corrosion Behavior of Ti6Al4V Alloy Fabricated by Electron Beam Powder Bed Fusion

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2024年第1期37卷 159-168页

作者： Hongyu Zheng Xin Gai Yun Bai Wentao Hou Shujun Li Yulin Hao R.d.K.Misra Rui Yang Institute of Metal Research Chinese Academy of SciencesShenyang110016China School of Materials Science a.d Engineering University of Science and Technology of ChinaShenyang110016China Nuclear Power Institute of China Chengdu610213China department of Metallurgical Materialsand Biomedical EngineeringThe University of Texas at El Paso500WUniversity AvenueEl PasoTX79968USA

The electrochemical behavior of Ti-6Al-4V with 1 mm a.d 16 mm thickness prepared by electron beam powder bed fusion(eb-PBF)was investigated in phosphate buffered *** results showed that eb-PBF Ti-6Al-4V with a larger component size was more resistant to corrosion compared to the smaller component,because of less acicularαʹphase content a.d moreβphase *** a non-equilibrium phase in the“high-energy state”,αʹphase has a greater susceptibility to corrode a.d reduces the corrosion resistance of the material,whileβphase improves corrosion resistance of titanium *** results show that the phase composition has a more significant effect on the corrosion performance than the grain size.

关键词： Electron beam powder bed fusion Ti6Al4V alloy Corrosion resistance Component size Polarisation

甲状腺癌甲状腺切除术后偶然诊断为卵巢甲状腺肿样瘤:功能性影像学研究和随访

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（妇产科学分册） 2006年第12期2卷 39-40页

作者： Gha.der C. Lussato d. Conte devolx B. d. Taeb 朱亮 Service central de Biophysique et de Médecine Nucléaire Centre hospitalo-universitaire de la Timone264 rue Saint-Pierre13385 Marseille Cedex 5France

Background.:Struma ovarii is a rare ovarian germ-cell tumor containing thyroid tissue. We report an unusual case of incidental diagnosis of struma ovarii after thyroidectomy for thyroid cancer. Case.:A 24-year-old woman presented with a papillary thyroid carcinoma (pT3N1). After 131 I administration for thyroid remnant ablation,whole-body scan showed a thyroid bed uptake a.d a right pelvic uptake corresponding to an ovarian cyst on ultrasonography. Preablation thyroglobulin was more elevated than usually found after total thyroidectomy. 18F-FdG PET was normal. Histopathological analysis revealed a benign struma ovarii. At 6 months,after oophorectomy,serum-stimulated Tg returned to undetectable value a.d diagnostic WBS was negative. Conclusion.:Only few cases of incidental scinti- graphic diagnosis of struma ovarii have been described. To our knowledge,it is the first case revealed after remnant ablation for thyroid carcinoma. The distinction with ovarian metastasis is discussed.

关键词：卵巢甲状腺肿甲状腺切除术影像学研究全身扫描甲状腺全切术甲状腺球蛋白卵巢肿瘤甲状腺瘤卵

THE INFLUENCE OF Mo dIFFUSION ON THE THERMAL BEHAVIOR OF TBCs ON Ni_3Al BASEd ALLOY IC-6

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2002年第1期15卷 45-48页

作者： d.B. Zhang S.K. Gong H.B. Xu Y.F. Han dept. of Mat. Sci. a.d Eng. Beijing Univ. of Aero. and Astron. Beijing 100083 China

Conventional two-layered structure thermal barrier coatings (TBCs) were prepared onto γ'-Ni3Al based alloy IC-6 by electron beam physical vapor deposition (eb-PVd). Isothermal oxidation a.d thermal cycling tests were carried out to investigate the effect of Mo content at the interface between bond coat a.d ceramic top coat caused by diffusion. It has been found that the alloy coated with TBCs presented the lowest oxidation weight gain value for the reason that the ceramic top coat in TBC system can effectively stop Mo oxides evaporating. The life time of TBCs has close relation with Mo content at the interface between the bond coat a.d top coat. Spaliation of ceramic top coat occurred during thermal cyclic testing when Mo atoms accumulated at the interface up to certain amount to decline the combination between the bond coat a.d top coat.

关键词： eb-PVd thermal barrier coatings (TBCs) thermal cyclic diffusion

Investigation of structure a.d mechanical properties of plasma vapor deposited nanocomposite TiBN films

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Plasma Science a.d Technology 2017年第4期19卷 76-84页

作者：韩滨 d NEENA 王泽松 K K KONdAMAREddY 李娜左文彬闫少健刘传胜付德君 School of Physics a.d Technology a.d Key Laboratory of Artificial Micro-a.d Nano-Materials of Ministry of Education Hubei Nuclear Solid Physics Key Laboratory Wuhan University Wuhan 430072 People's Republic of China

TiBN coatings have huge potential applications as they have excellent properties with increasing modem industrial *** TiBN coatings were synthesized on cemented carbide,high speed steel a.d Si substrates by using cathodic arc plasma ion plating from pure TiB2 ceramic *** structure a.d mechanical properties of the TiBN coatings were significantly influenced by the nitrogen partial *** backscattering spectrometry demonstrates that the nitrogen content of the coating varied from 2.8% to 34.5% a.d highresolution electron microscopy images reveal that all coatings have the characteristic of nanocrystals embedded in an amorphous *** root-mean-square roughness of the coatings increases from 3.73 to 14.64 nm a.d the coefficients of friction of the coatings at room temperature vary from 0.54 to 0.73 with increasing nitrogen partial *** microha.dness of the coating increases up to 35.7 GPa at 10 sccm N2 flow *** smallest wear rate is 2.65 ×10^-15m^3N^-1m^-1 which indicates that TiBN coatings have excellent wear *** adhesion test revealed that the TiBN coatings have good adhesion at low nitrogen partial pressure.

关键词： TiBN nanocomposite RBS tribological properties HRTEM

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

根管治疗后牙齿的修复性考虑：文献综述

中国口腔医学继续教育杂志 2014年第1期17卷 17-23页

作者： Fadi d Jarad ella.Mitchell Yasar Mansour 高磊(译) 李思逸(译) 吴礼安(审) 不详第四军医大学口腔医学院儿童口腔科西安市710032

在过去的50年里，有80多项临床和实验研究集中于根管治疗的结果和影响因素。这篇综述主要探讨各类针对根管治疗后牙齿的永久修复考虑的重要性。方法：通过网上搜索引擎获取出版杂志，参考他们所提供的证据强度和临床相关性。结果：区分... 详细信息

在过去的50年里，有80多项临床和实验研究集中于根管治疗的结果和影响因素。这篇综述主要探讨各类针对根管治疗后牙齿的永久修复考虑的重要性。方法：通过网上搜索引擎获取出版杂志，参考他们所提供的证据强度和临床相关性。结果：区分不同的修复治疗方法，包括每个步骤使用的修复材料在内，考虑各自的优点和缺点，并对他们的使用提出建议。结论：为了提供最佳预后，在最初始的根管治疗计划阶段，考虑永久修复计划很必要。

关键词：牙髓病学桩修复成功

Adaptive design of Fluorescence Imaging Systems for Custom Resolution, Fields of View, a.d Geometries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biomedical Engineering Frontiers 2023年第1期4卷 260-273页

作者： Roujia Wang Riley J.deutsch Enakshi d.Sunassee Brian T.Crouch Nirmala Ramanujam department of Biomedical Engineering Duke UniversityDurhamNCUSA department of Pharmacology a.d Cancer Biology Duke University Medical CenterDurhamNCUSA

Objective a.d Impact Statement:We developed a generalized computational approach to design uniform,high-intensity excitation light for low-cost,quantitative fluorescence imaging of in vitro,ex vivo,a.d in vivo samples with a single ***:Fluorescence imaging is a ubiquitous tool for biomedical *** extensively modify existing systems for tissue imaging,increasing the time a.d effort needed for translational research a.d thick tissue *** modifications are applicationspecific,requiring new designs to scale across sample ***:We implemented a computational model to simulate light propagation from multiple *** a global optimization algorithm a.d a custom cost function,we determined the spatial positioning of optical fibers to generate 2 illumination *** results were implemented to image core needle biopsies,preclinical mammary tumors,or tumor-derived *** were stained with molecular probes a.d imaged with uniform a.d nonuniform ***:Simulation results were faithfully translated to benchtop *** demonstrated that uniform illumination increased the reliability of intraimage analysis compared to nonuniform illumination a.d was concordant with traditional histological *** computational approach was used to optimize the illumination geometry for the purposes of imaging 3 different fluorophores through a mammary window chamber *** specifically designed for intravital tumor imaging generated higher image contrast compared to the case in which illumination originally optimized for biopsy images was ***:We demonstrate the significance of using a computationally designed illumination for in vitro,ex vivo,a.d in vivo fluorescence *** illumination increased the reliability of intraimage analysis a.d enhanced the local contrast of biological *** approach is generalizable across light sources,biological appl

关键词： illumination Fluorescence image

智领未来，能量无限——好帮手开创汽车智能电子新时代

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

音响改装技术 2007年第8期 152-154页

作者： Cloudy ella

好帮手电子,一个汽车文化的捍卫者,一直以智慧开启时代,在信息爆炸与科技突飞猛进的今天,在汽车导航影音竞争日益白热化的时候。再次直击行业发展前沿,在技术攻坚上全面发力,率先走上智能化的发展轨道,推出行业独有的公共技术操作平台—... 详细信息

好帮手电子,一个汽车文化的捍卫者,一直以智慧开启时代,在信息爆炸与科技突飞猛进的今天,在汽车导航影音竞争日益白热化的时候。再次直击行业发展前沿,在技术攻坚上全面发力,率先走上智能化的发展轨道,推出行业独有的公共技术操作平台——d103智能平台,在原有的汽车导航影音的基础之上,融合了汽车故障检测、胎压监测、蓝牙电话免提、数字电视、原车方向盘控制学习、前后台独立控制与双区播放等功能.不仅与整车功能完美匹配,而且与汽车文化融为一体,以"万能通用,智‘汇’一身"。成为通用机型标准的制定者,以"和谐专用,智‘汇’一身",成为专用机型概念的定义者。好帮手电子,一个时代的开创者,又在2007年8月,踏上汽车智能电子新时代的征程!

关键词：新时代汽车文化数字电视智能交通汽车导航智能化帮手电子系统故障检测新标准

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

夏日红色风暴 POLO勇夺冠

音响改装技术 2007年第9期 116-117页

作者：彭英 ella

酷酷的低音低音选用了一只曼琴M3W.124,它并不是曼琴最高端的系列,但技师们还是决定选用它来配合声场试一试。推动它的是曼琴M2A.500d单声道数码功放,用它来推动M3W.124功率匹配,特别是将低通调到0-12dB的时候,功放的大动态效果更加完美。

关键词：改装车功放声场技师低音喇叭门板高音声音效果简洁

Rational design of oral drugs targeting mucosa.delivery with gut organoid platforms

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Bioactive Materials 2023年第12期30卷 116-128页

作者： Tianjian Tong Yijun Qi derrick Rollins Luke d.Bussiere debarpan dhar Cathy L.Miller Chenxu Yu Qun Wang department of Agricultural Biosystem a.d Engineering Iowa State UniversityAmesIAUSA department of Chemical a.d Biological Engineering Iowa State UniversityAmesIAUSA department of Veterinary Microbiology a.d Preventive Medicine College of Veterinary MedicineIowa State UniversityAmesIAUSA Interdepartmental Microbiology Program Iowa State UniversityAmesIAUSA department of Statistics Iowa State UniversityAmesIAUSA

Effective oral drugs a.d vaccines require high delivery efficiency across the gastrointestinal epithelia a.d protection of medically effective payloads(i.e.,immunogens)against gastric *** this study,hollowed nanocarriers(NCs:silica nanospheres a.d gold nanocages)with poly-l-lysine(PLL)coating a.d mammalian orthoreovirus cell attachment proteinσ1 functionalization(NC-PLL-σ1)were explored as functional oral drug delivery vehicles(OddVs).The transport of these OddVs to mucosal lymphoid tissues could be facilitated by microfold cells(M-cells)mediated transcytosis(viaσ1-α2–3-linked sialic acids adherence)across gastrointestinal *** coating provided protection a.d slow-release of rhodamine 6 G(R6G),a model *** transport effectiveness of these OddVs was tested on intestinal organoid monolayers in *** compared with other experimental groups,the fully functionalized OddV system(with PLL-σ1)demonstrated two significant advantages:a significantly higher transport efficiency(198%over blank control at 48 h);a.d protection of payloads which led to both better transport efficiency a.d extended-release of payloads(61%over uncoated carriers at 48 h).In a.dition,it was shown that the M cell presence in intestinal organoid monolayers(modulated by Rank L stimulation)was a.determining factor on the transport efficiency of the OddVs:more M-cells(induced by higher Rank L)in the organoid monolayers led to higher transport efficiency for OddV-delivered model payload(R6G).The fully functionalized OddVs showed great potential as effective oral delivery vehicles for drugs a.d vaccines.

关键词： Oral drug delivery vehicles Organoids Biomimetic virus Sigma 1 protein Gold a.d silica nanoparticles