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宇航材料工艺 1991年第6期21卷 51-56,61页

作者： AndrewJ.Dixon NickDoe tia-Minpang 雷祖圣

共焦扫描光学显微镜开拓了点探针光学扫描系统三个独特的功能:差分相衬、共焦剖面和光束感生电流(OBIC)像。本文叙述了这些功能在材料显微术、半导体失效分析、生物显微术上的应用,概述了激光扫描共焦显微镜的设计特点。

关键词：激光扫描光学显微镜应用

MAIN TOPICS, ABSTRACTS ＆ KEY WORDSResearch status of cored wires applied in remanufacturing crankshaft by high velocity arc spraying

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焊接技术 2014年第1期43卷 I0001-I0002页

作者： tia N Hao-liang WEI Shi-cheng CHEN Yong-xiong TONG Hui LIU Yi XU Bin-shi LI Wen School of Material Science and Engineering Beijing University of Aeronautics & Astronautics Beijing 100037 National Key Laboratory for Remanufacturing Academy of Armored Forces Engineering Beijing 100072China XCMG Construction Machinery Research Institute Xuzhou 221004 Jiangsu pro. China

A New Type of Silicone Rubber Membrane for Amperometric Oxygen Gas Sensor

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Chemical Research in Chinese Universities 1996年第1期12卷 114-119页

作者： LIU Shan-jun and SHEN Han-xi(Department of Chemistry, Nankai University, tianjin, 300071 )QIU Ying-hua and FENG Jian-xing.(Department of Environmental Science, Nankai University, tia’din, 300071) NANKAI UNIV DEPT CHEMTIANJIN 300071PEOPLES R CHINA NANKAI UNIV DEPT ENVIRONM SCITIANJIN 300071PEOPLES R CHINA

A Review of the Characteristics and Challenges of Electricity Distribution in Ghana: Case Study of the Northern Electricity Distribution Company

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Energy and Power Engineering 2022年第11期14卷 615-634页

作者： Nutifafa K. Fiasorgbor Robert Aziz tia Abdulai Mina Antwi-Yeboah ECOWAS Regional Electricity Regulatory Authority (ERERA) Accra Ghana Public Utilities Regulatory Commission (PURC) Ghana Accra Ghana

This paper presents a review of the characteristics and challenges of electricity distribution in Ghana with an emphasis on the Northern Electricity Distribution Company (NEDCo) in the northern half of Ghana. NEDCo is used as a case study due to the peculiarity of its geographical area of operation and customer characteristics which better highlights the challenges of electricity distribution in Ghana. NEDCo’s electricity distribution operations cover approximately 64% of the total landmass of Ghana and contain the most deprived communities and consumers, who are extensively dispersed. In addition to the scattered settlements, NEDCo has a predominantly lifeline customer base that pay tariffs below the average cost of service. These peculiarities, together with regulatory complexities, have contributed to many challenges, such as high system losses, high cost of service and poor network reliability, in the electricity distribution sector in Ghana.

关键词： System Losses Electricity Tariffs Regulatory Regime Metering and Billing

Could a Cutaneous Lesion Mean Gastric Cancer? Case Report of a Rare Diagnostic Tool and the Management of a Cardiac Complication during Chemotherapy

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Journal of Cancer Therapy 2020年第10期11卷 639-645页

作者： Cátia Fava Gaspar Maria João Leitão Manuela Machado Medical Oncology Department Portuguese Institute of Oncology of Porto (IPO Porto) Porto Portugal

Cutaneous presentation of gastric cancer is very rare. This case report is about a patient with a metastatic gastric cancer in which the diagnosis was made by a cutaneous biopsy. Following this unusual diagnostic tool, the patient had an intracardiac thrombus, during the chemotherapy regimen, which wasn’t a contraindication for pursuing chemotherapy treatment for over 12 months. This case report is presented to make clinicians aware of a possible atypical sign of presentation of gastrointestinal tract cancer, as well as the importance of clinical suspicion of a well-known problem affecting cancer patients such as venous thromboembolism and its repercussions in the treatment options.

关键词： Gastric Cancer Cutaneous Metastasis Intracardiac Thrombus

Synthesis and structure of a praseodymium (Ⅲ) complex with carboxylate ligand：A thermal and spectroscopic study

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Journal of Rare Earths 2018年第10期36卷 1090-1097页

作者： Kátia Veronica Tenório José Augusto Teixeira Leandro Moreira de Campos Pinto Flávio Júnior Caires Oswaldo Treu-Filho Fáhio Alencar dos Santos tiago André Denck Colman Alexandre Cuin Cláudio Teodoro de Carvalho Federal University of Grande Dourados CP 364 79804-970 Dourados MS Brazil Institute of Chemistry State University of Sao Paulo 14.801-970 Araraquara SP Brazil Chemistry Institute Federal University of Mato Grosso do Sul 79074-460 Campo Grande MS Brazil Chemistry Department State University of Sao Paulo 17033-360 Bauru SR Brazil Federal University of Juiz de Fore 36036-330 Juiz de Fora MG Brazil

One Pr（Ⅲ） lanthanide ion complex was initially synthesized and characterized by TGA-DSC in air atmosphere, as well as characterized by CHN elemental analysis, defining the stoichiometric ratio as Pr（DMBz）3. The gaseous products evolved during the thermal decomposition were also monitored in N2 atmosphere employing TGA/FT-IR system. A crystal structure is obtained by state-of-the-art powder X-rays diffraction methods measured in conventional laboratory equipment and refined by the Rietveld method, which defined it as a monoclinic system of the space group P21/C with a polymeric crystal structure, [Pr（DMBZ）3]n. FT-IR theoretical spectrum and time-dependent density functional theory（TD-DFT） were calculated from TGA-DSC and crystalline system data. The experimental and theoretical FT-IR spectra present a high correlation degree when the main stretching bands are compared, while the energy transfer（HOMO - LUMO） in their neighborhoods suggests the main contributions of the light-emitting states.

关键词： Complex Thermal analysis Powder diffraction state-of-art Polymeric structure Theoretical calculation Rare earths

Effect of ECAP processing on distribution of second phase particles,hardness and electrical conductivity of Cu-0.81Cr-0.07Zr alloy

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Transactions of Nonferrous Metals Society of China 2022年第1期32卷 217-232页

作者： Filipe CALDATTO DALAN Gisele Ferreira de LIMA ANDREANI Dilermando Nagle TRAVESSA Ilshat Albertovich FAIZOV Svetlana FAIZOVA Kátia Regina CARDOSO Institute of Science and Technology Federal University of São Paulo330 Talim St.São Josédos Campos12231-280Brazil Institute for Metals Superplasticity Problems RAS 39 S.Khalturin St.Ufa450001Russia Ufa State Aviation Technical University 12 K.Marx St.Ufa450008Russia

The effect of equal-channel angular pressing(ECAP)processing at room temperature and 300℃on the distribution of the second phase particles and its influence on hardness and electrical conductivity of the commercial Cu-0.81Cr-0.07Zr alloy were *** characterization indicated that the area fraction of coarse Cr-rich particles decreased after ECAP *** reduction was attributed to the Cr dissolution induced by plastic *** electrical conductivity of the alloy decreased by 12%after 4 ECAP passes at room temperature due to the increase of electrons scattering caused by higher Cr content in solid solution and higher density of defects in the *** results were supported by the reduction of the Cu lattice parameter and by the exothermic reactions,during differential scanning calorimetry(DSC)analysis,observed only in the samples subjected to ECAP *** heat treatment after ECAP processing promoted an additional hardening effect and the complete recuperation of the electrical conductivity,caused by the re-precipitation of the partially dissolved *** better combination of hardness(191 HV)and electrical conductivity(83.5%(IACS))was obtained after 4 ECAP passes at room temperature and subsequent aging at 380℃for 1 h.

关键词： ECAP Cu-Cr-Zr alloy second phase particles phase transition

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格陵兰岛的冰层在融化

新世纪智能 2019年第15期 4-5页

作者： tia Parker 不详

全球没有任何角落可以幸免于气候变化带来的影响,但格陵兰岛尤为糟糕。气候变暖对北极地区的影响更大,常年被冰雪覆盖的格陵兰岛尤其脆弱。新的研究发现,气候变暖导致格陵兰岛冰层融化的速度比过去350年的任何时候都要快。此前的研究只... 详细信息

全球没有任何角落可以幸免于气候变化带来的影响,但格陵兰岛尤为糟糕。气候变暖对北极地区的影响更大,常年被冰雪覆盖的格陵兰岛尤其脆弱。新的研究发现,气候变暖导致格陵兰岛冰层融化的速度比过去350年的任何时候都要快。此前的研究只是测量了格陵兰岛上的冰融化了多少,甚至发现,通常很坚不可摧的北部海冰都正在融化。所有的科学都认为:格陵兰岛正在变暖,它的冰层正在融化。

关键词：格陵兰岛气候变暖

区域旅游业碳排放的时空差异——以山东省为例

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北京理工大学学报（社会科学版） 2018年第6期20卷 45-54页

作者：田红丁长安山东师范大学地理与环境学院山东省可持续发展研究中心山东济南250014

碳排放问题是区域旅游业发展不可忽视的环境问题之一。根据相关统计数据,按照"自下而上"分析法对2000—2015年山东省旅游业碳排放进行定量估算,并采用系统聚类法将山东省旅游业碳排放划分为高、中、低三类碳排放区域,具体剖析山东省旅... 详细信息

碳排放问题是区域旅游业发展不可忽视的环境问题之一。根据相关统计数据,按照"自下而上"分析法对2000—2015年山东省旅游业碳排放进行定量估算,并采用系统聚类法将山东省旅游业碳排放划分为高、中、低三类碳排放区域,具体剖析山东省旅游业碳排放的区域差异。结果表明:(1)碳排放总量、游客人均碳排放量和碳排放强度是衡量区域旅游业碳排放的重要指标。2000—2015年山东省旅游业碳排放总量持续增长,而游客人均碳排放量和旅游业碳排放强度则逐年下降,旅游业节能减排取得一定成效。(2)区域旅游业三大部门碳排放存在明显差异,旅游交通是区域旅游业碳排放的主要来源,旅游活动碳排放增长速度最快,而旅游住宿碳排放波动性较大。2000—2015年山东省旅游业累积碳排放总量为4 764.05万吨,其中,旅游交通、旅游住宿、旅游活动三大部门占比分别为66.52%、25.80%、7.68%。(3)区域旅游业碳排放水平空间差异显著。从空间分布上看,山东省旅游业碳排放总体上呈现东高西低、北高南低的特征,旅游业碳排放总量呈现出东部沿海>鲁中地区>鲁西地区,游客人均碳排放量和旅游业碳排放强度则是东部沿海>鲁西地区>鲁中地区;从碳排放指标上看,山东省大多数地市位于中高旅游业碳排放的行列,东部沿海是旅游业碳排放的主要来源区。

关键词：旅游业碳排放时空差异

Serum-circulating His-tRNA synthetase inhibits organ-targeted immune responses

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Cellular & Molecular Immunology 2021年第6期18卷 1463-1475页

作者： Ryan AAdams Cátia Fernandes-Cerqueira Antonella Notarnicola Elisabeth Mertsching Zhiwen Xu Wing-Sze Lo Kathleen Ogilvie Kyle PChiang Jeanette Ampudia Sanna Rosengren Andrea Cubitt David JKing John DMendlein Xiang-Lei Yang Leslie ANangle Ingrid ELundberg Per-Johan Jakobsson Paul Schimmel aTyr Pharma 3545 John Hopkins CourtSuite 250San DiegoCA92121USA Division of Rheumatology Department of MedicineSolnaKarolinska InstitutetKarolinska University HospitalSE-17176StockholmSweden IAS HKUST-Scripps R&D Laboratory Institute for Advanced StudyHong Kong University of Science and Technologyand Pangu BiopharmaHong KongChina The Scripps Laboratories for tRNA Synthetase Research 10650 North Torrey Pines RoadLa JollaCA92037USA The Scripps Laboratories for tRNA Synthetase Research Scripps Florida130 Scripps WayJupiterFL33458USA

His-tRNA synthetase (HARS) is targeted by autoantibodies in chronic and acute inflammatory anti-Jo-1-positive antisynthetase syndrome. The extensive activation and migration of immune cells into lung and muscle are associated with interstitial lung disease, myositis, and morbidity. It is unknown whether the sequestration of HARS is an epiphenomenon or plays a causal role in the disease. Here, we show that HARS circulates in healthy individuals, but it is largely undetectable in the serum of anti-Jo-1-positive antisynthetase syndrome patients. In cultured primary human skeletal muscle myoblasts (HSkMC), HARS is released in increasing amounts during their differentiation into myotubes. We further show that HARS regulates immune cell engagement and inhibits CD4+ and CD8+ T-cell activation. In mouse and rodent models of acute inflammatory diseases, HARS administration downregulates immune activation. In contrast, neutralization of extracellular HARS by high-titer antibody responses during tissue injury increases susceptibility to immune attack, similar to what is seen in humans with anti-Jo-1-positive disease. Collectively, these data suggest that extracellular HARS is homeostatic in normal subjects, and its sequestration contributes to the morbidity of the anti-Jo-1-positive antisynthetase syndrome.

关键词： Immunology Autoimmunity Synthetase tRNA HARS