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CaO-SrO-SiO2-GeO2系统中环链结构转换的研究

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科学通报 1984年第20期29卷 1247-1250页

作者：温树林,d.a.jefferson,j.m.thomas 中国科学院上海硅酸盐研究所英国剑桥大学物理化学系英国剑桥大学物理化学系

前言偏硅酸钙有硅灰石和假硅灰石两种结构,其中硅灰石为链状结构,假硅灰石为环状结构,转变温度为1250℃。当用Sr2+取代偏硅酸钙中的Ca2+时,产生环状结构,与温度没有关系。与此同时,用锗取代偏硅酸钙中的硅所生成的产物应如何呢?对硅... 详细信息

前言偏硅酸钙有硅灰石和假硅灰石两种结构,其中硅灰石为链状结构,假硅灰石为环状结构,转变温度为1250℃。当用Sr2+取代偏硅酸钙中的Ca2+时,产生环状结构,与温度没有关系。与此同时,用锗取代偏硅酸钙中的硅所生成的产物应如何呢?对硅进行全部取代生成的锗酸钙肯定是链状结构,与温度没有关系。但如果进行局部取代,并进一步对阴阳离子同时取

关键词：链状环结构类型离子半径比假硅灰石阳离子正离子环链硅氧四面体 SrO 链状结构环状结构 CaO-SrO-SiO2-GeO2 晶格象

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环-链结构共生长

自然杂志 1982年第5期 396-397页

作者：温树林,d.a.jefferson,j.m.thomas 中国科学院上海硅酸盐研究所英国剑桥大学物理化学系英国剑桥大学物理化学系

硅灰石（CaSiO3）呈链状结构,属三斜晶系,但在1250°时发生相变,成为环状结构;对称性也由三斜变到假六方。

关键词：链结构链状结构环状结构

(Ca,Sr)GeO3晶体中环-链结构的共生长

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化学学报 1983年第4期41卷 297-301页

作者：温树林 d.a.jefferson j.m.thomas 中国科学院上海硅酸盐研究所英国剑桥大学物理化学系英国剑桥大学物理化学系

通过（1-x）CaO+xSrO+GeO2→（Ca1-xSrx）GeO3的反应获得的产物经过淬火、退火形成晶态。用X射线衍射和分析电子显微镜进行研究,并用高分辨电子显微镜观察,由jEOLjEm200CX获得晶格象照片。研究结果指出:（Ca,Sr）GeO3晶体中存在环-链结... 详细信息

通过（1-x）CaO+xSrO+GeO2→（Ca1-xSrx）GeO3的反应获得的产物经过淬火、退火形成晶态。用X射线衍射和分析电子显微镜进行研究,并用高分辨电子显微镜观察,由jEOLjEm200CX获得晶格象照片。研究结果指出:（Ca,Sr）GeO3晶体中存在环-链结构的共生长,其共生长接触晶面为（100）SrGeO3/（101）CaGaO3·

关键词：链结构 Ca,Sr)GeO3 射线衍射晶格象电子衍射晶面面(晶体) 晶种链状结构晶粒颗粒硅灰石矽灰石链状硅酸盐矿物照片电子显微镜电镜 Sr 晶体

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氮化硅晶界玻璃相结晶化的研究

硅酸盐学报 1982年第1期 1-8页

作者： d.a.jefferson,温树林,j.m.thomas 英国剑桥大学物理化学系中国科学院上海硅酸盐研究所英国剑桥大学物理化学系

三种经过不同温度下热处理的热压氮化硅样品（含5wt％Y2O3和2wt％Al2O3添加物）,用X射线衍射、X射线微量分析和高分辨率电子显微镜进行了研究。结果表明在热处理后晶界区产生相变化。晶界玻璃相由于热处理而结晶化。

关键词：晶界玻璃相结晶化氮化硅四氮化三硅氮化物晶格像

THE TRANSITION BETWEEN CHAIN ANd RING STRUCTURES IN THE SYSTEm OF CaO-SrO-SiO_2-GeO_2

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Chinese Science Bulletin 1985年第4期30卷 471-474页

作者：温树林 d.a.jefferson j.m.thomas Shanghai Institute of Ceramics Academia Sinica department of Physical Chemistry University of Cambrdge U. K. department of Physical Chemistry University of Cambrdge U. K.? INTRODUCTION Calcium metasilicate possesses two kinds of structures namely wollastonite and pseudowollastonite. Wollastonite has chain structure but pseudowollastonite ring structure. The transition temperature between the two is 1250°C.

Ⅰ. INTROdUCTION Calcium metasilicate possesses two kinds of structures, namely, wollastonite and pseudowollastonite. Wollastonite has chain structure, but pseudowollastonite ring structure. The transition temperature... 详细信息

关键词： Radius corner hough appearance powerful partially annealing 刃刀 struc figure

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硅锗酸钙多型体晶格象的观察

电子显微学报 1983年第1期 5-7页

作者：温树林 jefferson,d.A thomas,j.m 中国科学院上海硅酸盐研究所英国剑桥大学物理化学系英国剑桥大学物理化学系

硅灰石（CaSiO3）是链状硅酸盐。本工作发现,用锗局部取代硅所形成的硅锗酸钙,只要取代量X≤0.2,其结构与硅灰石完全相同。但形成的多型体无序程度较高。样品由氧化钙、二氧化锗和二氧化硅在1500℃反应制得。在制备过程中,配料按照关系m... 详细信息

硅灰石（CaSiO3）是链状硅酸盐。本工作发现,用锗局部取代硅所形成的硅锗酸钙,只要取代量X≤0.2,其结构与硅灰石完全相同。但形成的多型体无序程度较高。样品由氧化钙、二氧化锗和二氧化硅在1500℃反应制得。在制备过程中,配料按照关系mSi+mGe=mCa进行。式中mSi,mGe和mCa分别代表SiO2,GeO和CaO的克分子数。由此取代量为:X=mGe/mGe+mSi。对制得的Ca(Si1-xGex)O3晶体进行X—射线衍射和电子衍射,均证明其结构与硅灰石相同。样品用jEOL200CX高分辨电子显微镜进行了观察并获得晶格象照片。晶格象指出Ca(Si0.8Ge0.2O3具有硅灰石结构。晶格象还显示单斜和三斜两种多型体交替分布的情形。其无序分布程度较高。

关键词：晶格象晶体硅灰石矽灰石链状硅酸盐矿物电子衍射环状结构堆积顺序高分辨率电子显微镜 CaO 硅氧四面体链状结构单斜多型体照片

STCF conceptual design report (Volume 1): Physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： m.Achasov X.C.Ai L.P.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov d.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.H.Bu F.m.Cai H.Cai j.j.Cao Q.H.Cao X.Cao Z.Cao Q.Chang K.T.Chao d.Y.Chen H.Chen H.X.Chen j.F.Chen K.Chen L.L.Chen P.Chen S.L.Chen S.m.Chen S.Chen S.P.Chen W.Chen X.Chen X.F.Chen X.R.Chen Y.Chen Y.Q.Chen H.Y.Cheng j.Cheng S.Cheng T.G.Cheng j.P.dai L.Y.dai X.C.dai d.dedovich A.denig I.denisenko j.m.dias d.Z.ding L.Y.dong W.H.dong V.druzhinin d.S.du Y.j.du Z.G.du L.m.duan d.Epifanov Y.L.Fan S.S.Fang Z.j.Fang G.Fedotovich C.Q.Feng X.Feng Y.T.Feng j.L.Fu j.Gao Y.N.Gao P.S.Ge C.Q.Geng L.S.Geng A.Gilman L.Gong T.Gong B.Gou W.Gradl j.L.Gu A.Guevara L.C.Gui A.Q.Guo F.K.Guo j.C.Guo j.Guo Y.P.Guo Z.H.Guo A.Guskov K.L.Han L.Han m.Han X.Q.Hao j.B.He S.Q.He X.G.He Y.L.He Z.B.He Z.X.Heng B.L.Hou T.j.Hou Y.R.Hou C.Y.Hu H.m.Hu K.Hu R.j.Hu W.H.Hu X.H.Hu Y.C.Hu j.Hua G.S.Huang j.S.Huang m.Huang Q.Y.Huang W.Q.Huang X.T.Huang X.j.Huang Y.B.Huang Y.S.Huang N.Hüsken V.Ivanov Q.P.ji j.j.jia S.jia Z.K.jia H.B.jiang j.jiang S.Z.jiang j.B.jiao Z.jiao H.j.jing X.L.Kang X.S.Kang B.C.Ke m.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.Lei E.Levichev C.H.Li C.Li d.Y.Li F.Li G.Li G.Li H.B.Li H.Li H.N.Li H.j.Li H.L.Li j.m.Li j.Li L.Li L.Li L.Y.Li N.Li P.R.Li R.H.Li S.Li T.Li W.j.Li X.Li X.H.Li X.Q.Li X.H.Li Y.Li Y.Y.Li Z.j.Li H.Liang j.H.Liang Y.T.Liang G.R.Liao L.Z.Liao Y.Liao C.X.Lin d.X.Lin X.S.Lin B.j.Liu C.W.Liu d.Liu F.Liu G.m.Liu H.B.Liu j.Liu j.j.Liu j.B.Liu K.Liu K.Y.Liu K.Liu L.Liu Q.Liu S.B.Liu T.Liu X.Liu Y.W.Liu Y.Liu Y.L.Liu Z.Q.Liu Z.Y.Liu Z.W.Liu I.Logashenko Y.Long C.G.Lu j.X.Lu N.Lu Q.F.Lü Y.Lu Y.Lu Z.Lu P.Lukin F.j.Luo T.Luo X.F.Luo Y.H.Luo H.j.Lyu X.R.Lyu j.P.ma P.ma Y.ma Y.m.ma F.maas S.malde d.matvienko Z.X.meng R.mitchell A.Nefediev Y.Nefedov S.L.Olsen Q.Ouyang P.Pakhlov G.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei H.P.Peng L.Peng X.Y.Peng X.j.Peng K.Peters S.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian C.F.Qiao j.j.Qin j.j.Qin L.Q.Qin X.S.Qin T.L.Qiu j.Rademacker C.F.Redmer H.Y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear Physics Novosibirsk 630090Russia CAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University of Geosciences Wuhan 430074China China University of mining and Technology Xuzhou 221116China École Polytechnique Fédérale de Lausanne(EPFL) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced Study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hefei University of Technology Hefei 230601China Helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy Physics Center Chung-Ang UniversitySeoul 06974Korea Higher School of Economy 11 Pokrovsky Bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University of Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University of Science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China jilin University Changch

The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard *** STCF project in China is under development with an extensive R&d *** document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&d and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

A new perspective on intervertebral disc calcification—from bench to bedside

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Bone Research 2024年第1期12卷 50-61页

作者： Emanuel j.Novais Rajkishen Narayanan jose A.Canseco Koen van de Wetering Christopher K.Kepler Alan S.Hilibrand Alexander R.Vaccaro makarand V.Risbud department of Orthopaedic Surgery Sidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPAUSA Unidade Local de Saúde do Litoral Alentejano Orthopedic DepartmentSantiago do CacémPortugal Rothman Orthopedic Institute at thomas jefferson University PhiladelphiaPAUSA

disc degeneration primarily contributes to chronic low back and neck ***,there is an urgent need to understand the spectrum of disc degeneration phenotypes such as fibrosis,ectopic calcification,herniation,or mixed *** these phenotypes,disc calcification is the least *** calcification,by definition,is the pathological mineralization of soft tissues,widely studied in the context of conditions that afflict vasculature,skin,and ***,disc calcification is associated with poor surgical outcomes and back pain refractory to conservative *** is frequently seen as a consequence of disc aging and progressive degeneration but exhibits unique molecular and morphological characteristics:hypertrophic chondrocyte-like cell differentiation;TNAP,ENPP1,and ANK upregulation;cell death;altered Pi and PPi homeostasis;and local *** studies in mouse models have provided a better understanding of the mechanisms underlying this *** is essential to recognize that the presentation and nature of mineralization differ between AF,NP,and EP ***,the combination of anatomic location,genetics,and environmental stressors,such as aging or trauma,govern the predisposition to ***,the systemic regulation of calcium and Pi metabolism is less important than the local activity of PPi modulated by the ANK-ENPP1 axis,along with disc cell death and differentiation *** there is limited understanding of this phenotype,understanding the molecular pathways governing local intervertebral disc calcification may lead to developing disease-modifying drugs and better clinical management of degeneration-related pathologies.

关键词： degeneration metabolism intervertebral

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Assessing the academic achievement of United States orthopaedic departments

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World journal of Orthopedics 2022年第2期13卷 201-211页

作者： Rishi Trikha thomas E Olson Ameen Chaudry Chad R Ishmael Cristina Villalpando Clark j Chen Kellyn R Hori Nicholas m Bernthal department of Orthopaedic Surgery University of CaliforniaLos AngelesCA 90404United States department of Orthopaedic Surgery David Geffen School of Medicine at UCLALos AngelesCA 90095United States

BACKGROUNd Assessing academic productivity allows academic departments to identify the strengths of their scholarly contribution and provides an opportunity to evaluate areas for *** To provide objective benchmarks for departments seeking to enhance academic productivity and identify those with significant improvement in recent *** Our study retrospectively analyzed a cohort of orthopaedic faculty at United States-based academic orthopaedic programs.5502 full-time orthopaedic faculty representing 178 programs were included in *** included for analysis were National Institutes of Health funding(2014-2018),leadership positions in orthopaedic societies(2018),editorial board positions of top orthopaedic journals(2018),total number of publications and Hirsch-index.A weighted algorithm was used to calculate a cumulative score for each academic *** study was performed at a large,United States medical *** All 178 programs included in analysis were evaluated using the comprehensive weighted *** five institutions with the highest cumulative score,in decreasing order,were:Washington University in ***,the Hospital for Special Surgery,Sidney Kimmel medical College(SKmC)at thomas jefferson University,the University of California,San Francisco(UCSF)and massachusetts General Hospital(mGH)/Brigham and Women’s/*** five institutions with the highest score per capita,in decreasing order,were:mayo Clinic(Rochester),Washington University in ***,Rush University,Virginia Commonwealth University(VCU)and mGH/Brigham and Women’s/*** five academic programs that had the largest improvement in cumulative score from 2013 to 2018,in decreasing order,were:VCU,SKmC at thomas jefferson University,UCSF,mGH/Brigham and Women’s/Harvard,and Brown *** This algorithm can provide orthopaedic departments a means to assess academic productivity,monitor progress,and identify areas for improvement as th

关键词： Bibliometrics Academic achievement Number of publications National Institutes of Health funding Hirsch-index