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Double Slag Operation Dephosphorization in BOF for Producing Low Phosphorus Steel

Journal of Iron and Steel Research International 2009年第3期16卷 6-14页

作者： tian zhi-hong li ben-hai zhang xiao-ming jiang zhong-hang Shougang Research Institute of Technology Shougang Group Beijing 100041 China

A study on the production of low phosphorus steel by double slag operation in 210 t converter was carried out. A phosphorus content of less than 0.005% （mass percent） was obtained before tapping. About 80% phosphorus could be removed by the first slag after 5 min. High Fe^3＋ content and high basicity in the first slag were in favor of dephosphorization. On the other hand,Fe3＋ content had less effect on dephosphorization during second slag treatment. In the second slag period,the fraction of dephosphorization increased with the increase of basicity up to a basicity of 6. Further increase of basicity of the second slag had very little effect on dephosphorization. The tapping temperature had great impact on dephosphorization. It was impossible to get phosphorus less that 0.005% when the tapping temperature was higher than 1 943 K. The optimum operation conditions were suggested. On the basis of these conditions,the amount of the second slag and the effect of the remaining first slag were estimated.

关键词： dephosphorization double slag low phosphorus steel converter

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CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci xiao-Jun Bi Yuanjie Bi tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen mingjun Chen mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen tianlu Chen Wei Chen Xiang Chen xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho ming-Chung Chu xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui xiaohao Cui Zhaoyuan Cui Brunella D'Anzi ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-tian Deng zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding haiyi Dong Jianin AGH University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui University HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing Normal University Beijing Brown University ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo University Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central China Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan China academy of engineering physics MianyangSichuan China building materials academy Beijing China Center of Advanced Science and Technology Beijing China Institute of Atomic Energy Beijing China Jiliang University HangzhouZhejiang China Nuclear Instrument CO. LTDBeijing China University of Geosciences Beijing China University of Geosciences WuhanHubei China University of Mining and Technology XuzhouJiangsu China West Normal University NanchongSichuan Chongqing University Department of PhysicsChongqing Chulalongkorn University Bangkok City University of hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell University IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East China University Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

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Nanophotonics in China： Overviews and highlights

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Frontiers of physics 2012年第6期7卷 601-631页

作者： zhi-Yuan li Laboratory of Optical Physics Institute of PhysicsChinese Academy of SciencesP.O.Box 603Beijing 100190China

The major purpose of this paper is to present a brief overview of the history and the current status of nanophotonics research in China, and to highlight some research results in the past years made by the Chinese nanophotonics communities. I will first briefly introduce the principles of nanophotonics and several of its major disciplines including photonic crystals, plasmonics and metamaterials, and related artificial acoustic structures. Then I will highlight some major progresses made by Chinese research groups in these areas with the selection made merely based on my personal taste. The aim is to let these results better known and appreciated by researchers in the Chinese communities of nanophotonics and related areas, and provide better opportunities of researchers in different areas to have more communications. I also hope that this brief introduction will help to make a better bridge to connect Chinese nanophotonics communities with the broader communities in the world.

关键词： nanophotonics photonic crystals plasmonics metamaterials phononic crystals

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中国心脏瓣膜术后多中心低强度抗凝治疗注册登记及随访研究

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中华医学杂志 2016年第19期96卷 1489-1494页

作者：董力石应康许建屏张尔永刘金成李亚雄倪一鸣杨谦韩涛付博陈进任莉魏蜀亮陈灏柳克祥于风旭刘建实肖明第吴树明张凯伦黄焕雷蒋树林乔晨辉王春生徐志云周新民王东进倪立新肖颖彬姜胜利张桂敏梁贵友杨思远伯平钟前进张进宝张希朱亚彬滕晓朱鹏黄烽肖亦敏曹广庆田海夏利民陆方林刘寅强刘达兴徐航袁烨李明常超邬晓臣许哲郭平白阳静薛卫斌蒋小英那竹惠曾秋芸蔡红王亚莉熊锐金素郑晓梅吴丹四川大学华西医院心血管外科成都610041 中国医学科学院阜外心血管病医院成人心脏中心第四军医大学西京医院心血管外科昆明市延安医院心血管外科浙江大学附属第一医院心血管外科厦门市心血管病医院心外科福建省立医院心血管外科中国循证医学中心四川大学华西医院胸部肿瘤科川北医学院附属医院胸心外科重庆市人民医院心血管外科吉林大学第二医院心血管外科泸州医学院附属医院胸心外科天津市胸科医院上海远大心胸医院心血管外科山东大学齐鲁医院心血管外科华中科技大学协和医院心血管外科广东省心血管病研究所心血管外科哈尔滨医科大学附属第二医院心血管外科郑州大学第一附属医院心血管外科复旦大学附属中山医院心血管外科第二军医大学长海医院心血管外科中南大学湘雅二医院心血管外科南京市鼓楼医院心血管外科哈尔滨医科大学附属第一医院心血管外科第三军医大学新桥医院心血管外科解放军总医院心血管外科昆明医学院第一附属医院心血管外科遵义医学院附属医院胸心外科贵阳医学院附属医院胸心外科首都医科大学附属北京安贞医院心血管外科第三军医大学大坪医院心血管外科成都军区总医院心血管外科中山大学附属第一医院心血管外科杭州市第一人民医院胸心外科郑州大学第二附属医院心血管外科

目的研究我国不同于西方国家的心脏瓣膜置换术后抗凝治疗强度、方法及监测指标。方法采用多中心、前瞻性、队列研究方法，分析2011年1月1日至2015年12月31日期间，“中国人心脏瓣膜置换术后抗凝治疗数据库”中注册登记的全国35家医院25... 详细信息

目的研究我国不同于西方国家的心脏瓣膜置换术后抗凝治疗强度、方法及监测指标。方法采用多中心、前瞻性、队列研究方法，分析2011年1月1日至2015年12月31日期间，“中国人心脏瓣膜置换术后抗凝治疗数据库”中注册登记的全国35家医院25773例心脏瓣膜置换术患者住院期间抗凝治疗数据，并就其临床流行病学特征与西方人群[美国胸科医师学会成人心外科数据库（STS—ACSD），美国胸科医师学会（ACCP）抗凝治疗指南]进行比较。随访11家医院20519例术后患者（研究终点2年），探讨适合中国人的抗凝治疗强度及方法。结果25773例心脏瓣膜置换术患者年龄（48．6±11．2）岁，女性占56．7％（14613／25773）；风湿性心脏病为主要病因（87．5％，22551／25773），二尖瓣狭窄是最主要病变（56．2％，14484／25773）；术前40．9％的患者合并心房纤颤（房颤），同期射频消融手术（Maze）者占9．2％；二尖瓣置换是最主要的手术方式（47．4％），使用机械瓣膜占94．8％；35家医院（100％）均使用国际标准比值（INR）作为抗凝监测指标，31家医院（88．6％）INR目标值1．5—2．5。住院期间100069例次INR的实测均值为1．84±0．53，其中89．2％在1．5—2．5，华法林平均剂量（2．82±0．93）mg／d；瓣膜术后早期抗凝治疗的主要方法：首次服用华法林在术后48h内占88．5％，维持量给药法占79．4％，不需其他抗凝药桥接治疗占84．6％；术后住院期间抗凝并发症发生率低：严重出血率0．02％，血栓形成及栓塞率均为0．05％，无抗凝相关死亡。共18974例获随访（9493例随访满2年），随访率92．47％，随访总量30012人年，失访1545例（7．53％）。总抗凝并发症发生率及病死率分别为0．67／100人年（202例次）和0．15／100人年（47例），严重出血发生率及病死率分别为0．25／100人年（76例次）和0．13／100人年（38例）。其中，颅内出血死亡31例，占总出血病死人数的81．6％（31／38）。血栓栓塞发生及病死率分别为0．45／100人年（136例次）和0．03／100人年（9例）。华法林剂量0．63—10．00（2．85±1．23）mg／d，共抗凝监测111408例次，INR均值1．82±0．57，国内不同医院实际抗凝强度与地域分布无显著相关性（P〉0．05）。结论INR已可作为我国抗凝监测的规范化指标；我国心脏瓣膜置换术后采用低强度抗凝治疗（INR1．5—2．5）取得了抗凝总并发症及严重出血并发症发生率显著降低，栓塞率无明显变化的疗效；国内不同医院实际抗凝治疗强度与地域分布无显著相关性，但抗凝治疗方法函待统一和规范。

关键词：心脏瓣膜假体植入低强度抗凝治疗多中心研究随访研究

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