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A High Dielectric N-Type Small Molecular Acceptor Containing oligoethyleneglycol Side-Chains for organic Solar Cellst

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Chinese Journal of Chemistry 2018年第3期36卷 199-205页

作者： Bomee Jang Changyeon Lee Young Woong Lee Donguk kim Mohammad Afsar Uddin felix sunj.o kim Bumjoon J. kim Han Young Woo Department of Chemistry Korea University Seoul 02841 Republic of Korea Department of Chemical and Biornolecular Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea School of Chemical Engineering and Materials Science Chung-Ang UniversitySeoul 06974 Republic of Korea

We report a new small molecular acceptor, ITIC-oEG, which is based on indacenodithieno[3,2-b]thiophene and 1,1-（dicyanomethylene）-3- indanone including oligoethyleneglycol （oEG） side-chains. ITIC-oEG was found to have higher dielectric constant （ε1=5.6} than that of a reference molecule of ITIC with normal alkyl substituents （ε1=3.9）. The dielectric constant of medium influences significantly the exciton binding energy and the resulting charge separation and recombination. The optical, electrochemical and morphological properties of ITIC-oEG and its photovoltaic characteristics were investigated by blending with a semi-crystalline donor polymer, PPDT2FBT, with comparison to those of ITIC. ITIC-oEG shows more red-shifted absorption and stronger crystalline packing than ITIC. However, the lower photovoltaic performance （with 1.58% power conversion efficiency, PCE） was measured for PPDT2FBT-ITIC-oEG, compared to PPDT2FBT：ITIC （5..52% PCE）. The incompatibility between PPDT2FBT and ITIC-oEG （due to high hydrophilic nature of oEG chains） resulted in poor intermixing with large domain separation over 300 nm, showing inefficient charge separation and significant charge recombination. Therefore, to investigate the effect of dielectric constant of the materials on the charge separation and recombination, the blend morphology of the PPDT2FBT：ITIC-oEG should be optimized first by improving their miscibility and phase separation.

关键词： N-type small molecule dielectric constant morphology organic solar cells

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The chemosensory appendage proteome of Amblyomma americanum （Acari： Ixodidae） reveals putative odorant-binding and other chemoreception-related proteins

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Insect Science 2017年第5期24卷 730-742页

作者： Robert Renthal Leena Manghnani Sandra Bernal Yanyan Qu Wendell P. Griffith kim Lohmeyer felix o. Guerrero Ligia M.F. Borges Adalberto Perez de Leon Department of Biology University of Texas at San Antonio San Antonio TX 78249 USA Department of Biochemistry University of Texas Health Science Center San Antonio IX 78229 USA RCMI Protein Biomarkers Core University of Texas at San AntonioSan Antonio TX 78249 USA Department of Chemistry University of Texas at San Antonio San Antonio TX 78249 USA USDA-ARS Knipling-Bushland U.S. Livestock Insects Research Laboratory Veterinary Pest Genomics Center Kerrville TX 78029 USA Instituto de Patologia Tropical e Saude Publica Universidade Federal de Goias Goiania Goias Brazil

Proteomic analyses were done on 2 chemosensory appendages of the lone star tick, Amblyomma americanum. Proteins in the fore tarsi, which contain the olfactory Haller＇s organ, and in the palps, that include gustatory sensilla, were compared with proteins in the third tarsi. Also, male and female ticks were compared. Proteins were identified by sequence similarity to known proteins, and by 3-dimensional homology modeling. Proteomic data were also compared with organ-specific transcriptomes from the tick Rhipicephalus microplus. The fore tarsi express a lipocalin not found in the third tarsi or palps. The fore tarsi and palps abundantly express 2 proteins, which are similar to insect odorant-binding proteins （oBPs）. Compared with insect oBPs, the tick oBP-like sequences lacked the cysteine absent in C-minus oBPs, and 1 tick oBP-like sequence had additional cysteines that were similar to C-plus oBPs. Four proteins similar to the antibiotic protein microplusin were found： 2 exclusively expressed in the fore tarsi and 1 exclusively expressed in the palps. These proteins lack the microplusin copper-binding site, but they are modeled to have a significant internal cavity, potentially a ligand-binding site. Proteins similar to the dust mite allergens Der p7 and Der f 7 were found differentially expressed in female fore tarsi. A protein exclusively expressed in the fore tarsi has similarities to Neto, which is known to be involved in clustering ofionotropic glutamate receptors. These results constitute the first report of oBP-like protein sequences in ticks and point to several research avenues on tick chemosensory reception.

关键词： dust mite allergen Haller's organ lipocalin microplusin odorant-binding protein 3-dimensional homology modeling

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在华留学生的心理痛苦与文化适应压力和应对的关系

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中国心理卫生杂志 2019年第2期33卷 132-136页

作者：黄飞 felix Shereka kim 郭林鑫华中师范大学心理学院青少年网络心理与行为教育部重点实验室武汉430079

目的:调查在华留学生的心理痛苦水平,检验文化适应压力、应对及其交互作用与心理痛苦的关系。方法:选取华中某市留学生373人[在华平均时间(2. 2±1. 7)年;男生248人,女生125人],采用简明症状调查表(BSI-18)、留学生文化适应压力量表(ASS... 详细信息

目的:调查在华留学生的心理痛苦水平,检验文化适应压力、应对及其交互作用与心理痛苦的关系。方法:选取华中某市留学生373人[在华平均时间(2. 2±1. 7)年;男生248人,女生125人],采用简明症状调查表(BSI-18)、留学生文化适应压力量表(ASSIS)和应对调查表(CoPE)测量在华期间的心理痛苦、文化适应压力和应对(积极应对和消极应对)。结果:在华留学生的BSI-18得分为(0. 66±0. 72)。BSI-18得分与ASSIS得分、CoPE消极应对得分正相关(r=0. 49、0. 31,均P <0. 001);多元回归分析表明,文化适应压力、消极应对、文化适应压力×消极应对均与心理痛苦正向关联(β=0. 43、0. 19、0. 26)。结论:文化适应压力和消极应对与心理痛苦相关,在高文化适应压力条件下,消极应对对心理痛苦的效应更大。

关键词：心理痛苦文化适应压力积极应对消极应对在华留学生

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Advanced bioactive glue tethering Lubricin/PRG4 to promote integrated healing of avascular meniscus tears

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Bioactive Materials 2023年第10期28卷 61-73页

作者： Solaiman Tarafder Jaskirti Ghataure David Langford Rachel Brooke Ryunhyung kim Samantha Lewis Eyen Julian Bensadoun Jeffrey T.felix James L.Cook Chang H.Lee Regenerative Engineering Laboratory Columbia University Medical Center630 W.168 St.-VC12-212New YorkNY10032USA Thompson Laboratory for Regenerative orthopaedics Missouri Orthopedic InstituteUniversity of Missouri1100 Virginia AvenueColumbi1MO65212USA

Meniscus injuries are extremely common with approximately one million patients undergoing surgical treatment annually in the U.S. alone, but no regenerative therapy exist. Previously, we showed that controlled applications of connective tissue growth factor (CTGF) and transforming growth factor beta 3 (TGFβ3) via fibrin-based bio-glue facilitate meniscus healing by inducing recruitment and stepwise differentiation of synovial mesenchymal stem/progenitor cells. Here, we first explored the potential of genipin, a natural crosslinker, to enhance fibrin-based glue’s mechanical and degradation properties. In parallel, we identified the harmful effects of lubricin on meniscus healing and investigated the mechanism of lubricin deposition on the injured meniscus surface. We found that the pre-deposition of hyaluronic acid (HA) on the torn meniscus surface mediates lubricin deposition. Then we implemented chemical modifications with heparin conjugation and CD44 on our bioactive glue to achieve strong initial bonding and integration of lubricin pre-coated meniscal tissues. our data suggested that heparin conjugation significantly enhances lubricin-coated meniscal tissues. Similarly, CD44, exhibiting a strong binding affinity to lubricin and hyaluronic acid (HA), further improved the integrated healing of HA/lubricin pre-coated meniscus injuries. These findings may represent an important foundation for developing a translational bio-active glue guiding the regenerative healing of meniscus injuries.

关键词： Knee meniscus Bioactive glue Stem cell recruitment Lubricin

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社交网络对大学生心理健康的影响

社交网络对大学生心理健康的影响

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作者： Shereka kim felix（菲丽）华中师范大学

学位级别：硕士

在武汉,中国大学生的社会网络模式进行了研究。它试图发现社交网络对大学生的两个不同群体的影响：中国学生和留学生(非洲)这项研究和37项通过问卷调查,采用5点-李克特量规模问卷(写在英语和汉语)。与会者包括600名学生(300中国男、女... 详细信息

在武汉,中国大学生的社会网络模式进行了研究。它试图发现社交网络对大学生的两个不同群体的影响：中国学生和留学生(非洲)这项研究和37项通过问卷调查,采用5点-李克特量规模问卷(写在英语和汉语)。与会者包括600名学生(300中国男、女学生和300非洲男性和女性学生),选择通过方便取样的程序。两个零假设,即被制定和使用独立样本t检验和相关测试。调查结果表明,社交网络对(非洲)国际学生有更强的积极影响的中国留学生比。结果还发现非洲男学生和中国学生只非中国网站青睐中国社交网站。关于动机的SNS使用,中国学生似乎在国际学生的同时更多是出于深层心理和情感上的原因(例如寻找幸福和连接与外面的世界)似乎更多出于非情感的原因：没有发现两个男性和女性性社会网络模式之间的差异。对两组学生提出了一些建议：非洲学生被鼓励利用社交网络,目的是提高他们的生活,而不是单纯的娱乐为使用它的某些方面。这项研究可能会提示进一步研究到社交网络和其他族裔群体心理福祉,因为不在本研究中探讨这一领域了。在另一个角度来看,在特定的社会机构还可以开展职业目标种族社会网络模式的比较。

关键词：社交心理幸福感民族性别

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High-performance oxygen reduction and evolution carbon catalysis： From mechanistic studies to device integration

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Nano Research 2017年第4期10卷 1163-1177页

作者： John W. F. To Jia Wei Desmond Ng Samira Siahrostami Ai Leen Koh Yangjin Lee Zhihua Chen Kara D. Fong Shucheng Chen Jiajun He Won-Gyu Bae Jennifer Wilcox Hu Young Jeong Kwanpyo kim felix Studt Jens K. Nфrskov Thomas F. Jaramillo Zhenan Bao Department of Chemical Engineering Stan ford University Stanford CA 94305 USA Institute of Chemical and Engineering Sciences Agency for Science Technology and Research Jurong Island 627833 Singapore Stanford Nano Shared Facilities Stanford University Stanford CA 94305 USA Department of Physics Ulsan National Institute of Science and Technology (UNIST) Ulsan 689-798 Republic of Korea Department of Chemical and Biological Engineering Colorado School of Mines Golden CO 80401 USA UNIST Central Research Facilities (UCRF) Ulsan National Institute of Science and Technology (UNIST) Ulsan 689-798 Republic of Korea SUNCAT Center for Interface Science and Catalysis SLAC National Accelerator Laboratory 2575 Sand Hill Road Menlo Park CA 94025 USA Institute of Catalysis Research and Technology Karlsruhe Institute of Technology Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology Engesserstr. 18 76131 Karlsruhe Germany

The development of high-performance and low-cost oxygen reduction and evolution catalysts that can be easily integrated into existing devices is crucial for the wide deployment of energy storage systems that utilize o2-H2o chemistries, such as regenerative fuel cells and metal-air batteries. Herein, we report an NHB-activated N-doped hierarchical carbon （NHC） catalyst synthesized via a scalable route, and demonstrate its device integration. The NHC catalyst exhibited good performance for both the oxygen reduction reaction （oRR） and the oxygen evolution reaction （oER）, as demonstrated by means of electrochemical studies and evaluation when integrated into the oxygen electrode of a regenerative fuel cell. The activities observed for both the oRR and the oER were comparable to those achieved by state-of-the-art Pt and Ir catalysts in alkaline environments. We have further identified the critical role of carbon defects as active sites for electrochemical activity through density functional theory calculations and high-resolution TEM visualization. This work highlights the potential of NHC to replace commercial precious metals in regenerative fuel cells and possibly metal-air batteries for cost-effective storage of intermittent renewable energy.

关键词： electrocatalysis porous carbon density functional theory

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企业多元化与股价暴跌风险

企业多元化与股价暴跌风险

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作者： felix oWUSU 厦门大学

学位级别：硕士

先前的研究已经记录了公司多元化对公司业绩,资本成本,公司政策,公司风险和真实业务活动的影响。本研究通过进一步调查公司多元化是否影响多元化公司股票价格崩溃的风险,从以前的研究中脱离出来。如果多元化公司接受高质量的财务报告,... 详细信息

先前的研究已经记录了公司多元化对公司业绩,资本成本,公司政策,公司风险和真实业务活动的影响。本研究通过进一步调查公司多元化是否影响多元化公司股票价格崩溃的风险,从以前的研究中脱离出来。如果多元化公司接受高质量的财务报告,并减少对市场不利消息的吸引力,那么他们就会与未来更低的碰撞风险相关联。但是,如果管理人员利用多元化来隐瞒不利消息,并分散股东的注意力,那么企业多元化将与更高的未来碰撞风险有关。研究结果表明,公司多元化对碰撞风险具有风险调节作用。具体来说,在考虑过去研究中公认的股价暴跌风险的其他决定因素之后,企业的多元化战略与未来一年的崩溃风险之间存在显着的负相关关系。这些结果证实了该研究的早期估计,并且在我考虑了潜在的内生性之后,这一结果一直很强劲。此外,横截面分析显示,公司多元化对未来股价暴跌风险的减轻效应对于公司治理薄弱或机构投资者偏低的公司更为明显。这一发现与kim等人的工作一致。(2014)表明强大的公司治理和高水平的机构投资者与碰撞风险负相关。总的来说,这项研究给企业多元化带来了未来极端负面股票回报的影响,应该引起投资者以及关注公司生存能力的其他利益相关者的兴趣。

关键词：公司多元化崩盘风险坏消息囤积公司破产

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从“合群”到“本我”:细观中国时尚消费者六大新趋势

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科技中国 2018年第7期 24-27页

作者： Antonio Achille Aimee kim 栾岚 felix Poh 麦肯锡公司

毋庸置疑,中国早已成为全球时尚品牌的兵家必争之地。而需求不断升级、变化的中国时尚消费者,正给这个市场注入新鲜的血液和源源不断的活力。本文旨在分析中国时尚消费者的六大新趋势(见图1),探究背后的动因,希望对品牌商、零售商和运... 详细信息

毋庸置疑,中国早已成为全球时尚品牌的兵家必争之地。而需求不断升级、变化的中国时尚消费者,正给这个市场注入新鲜的血液和源源不断的活力。本文旨在分析中国时尚消费者的六大新趋势(见图1),探究背后的动因,希望对品牌商、零售商和运营商有所借鉴。从需求来说,中国消费者的偏好越来越多样化,品味也越来越个性化。整体来看,品牌知名度、体现个人品味的设计、制作精良是决定购买的首要因素。同时我们也发现,在品牌选择上消费者更注重个人感受,开始从深层次思考品牌和个人价值的连接。

关键词：时尚品牌消费者中国细观本我合群品牌知名度品牌选择

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中国时尚消费新势:从“合群”到“本我”

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现代商业银行 2018年第1X期 120-124页

作者： Antonio Achille Aimee kim 栾岚 felix Poh 麦肯锡咨询公司麦肯锡咨询公司

随着信息的全球化和社交化,以及线上和线下科技的突破,中国的时尚消费者更加成熟,更知道自己认同的价值观和品牌内涵,多触点、重体验、随时即兴地按个人喜好进行购买。消费者的新面貌,也给业界带来了新启示和挑战。毋庸置疑,中国早已成... 详细信息

随着信息的全球化和社交化,以及线上和线下科技的突破,中国的时尚消费者更加成熟,更知道自己认同的价值观和品牌内涵,多触点、重体验、随时即兴地按个人喜好进行购买。消费者的新面貌,也给业界带来了新启示和挑战。毋庸置疑,中国早已成为全球时尚品牌的必争之地。需求不断升级、变化的中国时尚消费者,正给这个市场注入新鲜的血液和源源不断的活力(见图1)。

关键词：国际品牌购物体验接触点消费者大悦城受访者实体店品牌数量

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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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