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World Journal of Clinical Cases 2024年第15期12卷 2636-2641页

作者： Zhi-Yun Weng Wen-Ye Huang bin-kan Shi Jian-Jia Pan Department of Hematology The Affiliated Yueqing Hospital of Wenzhou Medical UniversityYueqing 325600Zhejiang ProvinceChina

BACKGROUND Brain metastases(BM)are very rare in gastric adenocarcinoma(GaC),and patients with BMs have a higher mortality rate due to stronger tumor ***,its pathogenesis remains *** testing revealed cellular-mesenchymal epithelial transition factor receptor(MET)***,treatment with savolitinib,a small molecule inhibitor of c-Met,was *** SUMMARY A 66-year-old woman was diagnosed with advanced GaC 6 months prior to presentation due to back *** and meningeal metastases were observed during candonilimab combined with oxaliplatin and capecitabine *** patient experienced frequent generalized seizures and persistent drowsiness in the emergency *** testing of cerebrospinal fluid and peripheral blood revealed increased MET *** discussing treatment options with the patient,savolitinib tablets were *** a month of treatment,the intracranial lesions shrank *** BM is very rare in advanced GaC,especially in meningeal cancer,that is characterized by rapid disease *** are very few effective treatment options available;however,technological breakthroughs in genomics have provided a basis for personalized ***,MET amplification may be a key driver of BM in gastric cancer;however,this conclusion requires further investigation.

关键词： Cellular-mesenchymal epithelial transition factor receptor Savolitinib Meningeal carcinomatosis Gastric adenocarcinoma Case report

Delicate chemical structure regulation of nonfullerene acceptor for efficient and large thickness organic solar cells

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Science China Chemistry 2024年第5期67卷 1596-1604页

作者： Zhe Zhang Wanying Feng Yunxin Zhang Shaohui Yuan Yuyang Bai Peiran Wang Zhaoyang Yao Chenxi Li Tainan Duan Xiangjian Wan bin kan Yongsheng Chen State Key Laboratory and Institute of Elemento-Organic Chemistry Frontiers Science Center for New Organic MatterThe Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071China School of Materials Science and Engineering National Institute for Advanced MaterialsNankai UniversityTianjin 300350China Chongqing Institute of Green and Intelligent Technology Chongqing SchoolUniversity of Chinese Academy of Sciences(UCAS Chongqing)Chinese Academy of SciencesChongqing 400722China

Inspired by the success of CH-series acceptors, a small-molecular acceptor, CH-Tz was reported by adopting a new conjugationextended electron-deficient unit([1,2,5]thiadiazolo[3,4-b]pyrazine) on the central core. Owing to the enhanced inter-/intramolecular interactions, CH-Tz exhibited near-infrared absorption and an effective three-dimensional molecular packing network in its single crystal. When blended with polymer donor PM6, the binary device achieved a high power conversion efficiency(PCE) of 18.54%, with a notable short-circuit current density(J_(sc)) of 27.54 m A cm-2and an excellent fill factor(FF) over 80%,which can be partly ascribed to the balanced charge transport properties in the blend film. After employing D18-Cl as the third component, an enhanced PCE of 18.85% was achieved due to a more obvious fiber network. Impressively, the CH-Tz-based OSC devices show excellent thermal stability and thickness insensitivity. Record-breaking Jscof 28.92 m A cm-2was reached for PM6:D18-Cl:CH-Tz ternary device with a thickness of 560 nm. Besides, CH-Tz shows potential in fabricating multicomponent high-performance organic solar cells, where over 19% efficiency could be realized in the quaternary device. Our work advances the strong influence of electron-deficient central units on molecular photovoltaic properties and guides the design of acceptors for stable and large-thickness organic solar cells.

关键词： organic solar cells non-fullerene acceptor central unit large thickness molecular packing

A case study of comparing two dimerized acceptor molecules built by different branch-connected and terminal-connected approaches

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Science China Chemistry 2024年第5期67卷 1687-1696页

作者： kangqiao Ma Huazhe Liang Yuxin Wang Tengfei He Tainan Duan Xiaodong Si Wendi Shi Guankui Long Xiangjian Cao Zhaoyang Yao Xiangjian Wan Chenxi Li bin kan Yongsheng Chen State Key Laboratory and Institute of Elemento-Organic Chemistry Frontiers Science Center for New Organic MatterThe Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsInstitute of Polymer ChemistryRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071China School of Materials Science and Engineering National Institute for Advanced MaterialsRenewable Energy Conversion and Storage Center(RECAST)Nankai UniversityTianjin 300350China Chongqing Institute of Green and Intelligent Technology Chongqing SchoolUniversity of Chinese Academy of Sciences(UCAS Chongqing)Chinese Academy of SciencesChongqing 400015China

Dimerized small-molecule acceptors(SMAs) built by the conventional connection of terminal groups of monomers have contributed to exciting long-term stabilities of organic solar cells(OSCs). However, device efficiencies, especially fill factors(FFs), still need to be improved. This probably originates from unsymmetrical molecular structure/conformation-determined less compact/ordered molecular stackings, such as ineffective stackings of constraint terminals. Herein, an exotic dimerized SMA of BC-Th is established by bridging the branched groups(BC-type, branch coupling) of two monomers rather than conventional terminal units(TC-type, terminal coupling). Benefiting from the three-dimensional conformation and more uncurbed terminals,BC-Th exhibits multiple molecular orientations along with a larger dielectric constant and electron mobility compared with TCTh. Finally, an efficiency of 17.43% is achieved by BC-Th-based OSCs, along with the highest FF of 79.13% among all dimerized SMAs-based OSCs to date. When introducing L8-BO as the third component, overall enhanced efficiency of 18.05%and FF of 80.11% are further afforded. Contrarily, TC-Th-based OSCs exhibit much inferior PCE of 16.29% and FF of 74.81%,demonstrating the great advantages of “branch coupling” over “terminal coupling” when building dimerized SMAs.

关键词： organic solar cells dimerized acceptor molecules branch coupling morphology control stability

Additive Manufacturing of Nickel-Based Superalloy Single Crystals with IN-738 Alloy

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Acta Metallurgica Sinica(English Letters) 2022年第3期35卷 369-374页

作者： Yang Li Ye-Feng Yu Zhi-bin Wang Xiao-Yu Liang Wen-bin kan Feng Lin Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing Technology Ministry of Education of ChinaBeijing 100084China Bio-Manufacturing and Rapid Forming Technology Key Laboratory of Beijing Beijing 100084China

The production of non-weldable nickel-based superalloys,especially single-crystal superalloys,is important for additive ***-crystal specimens of non-weldable nickel-based superalloys were produced by electron beam selective melting using an IN-738 *** this study,single-crystal nickel-based superalloy specimens of diff erent sizes were prepared by a multiple preheating process and tight control of the melting parameters without the need for a grain selector or single-crystal seed for the first *** backscattered diff raction measurements were performed to confi rm the presence of a single *** transition boundaries between the polycrystalline and single-crystal regions at the edges and bottom of the samples were characterized to analyze the formation of single crystals.

关键词： Non-weldable superalloys Electron beam selective melting Single crystal Grain selection

基于LSTM的分布式光伏系统数据价值发掘研究

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电力系统装备 2024年第7期 34-36页

作者：阚斌杜虎高武山李浩马燕红中节能甘肃武威太阳能发电有限公司甘肃武威733000

随着可再生能源在能源结构中占比的不断提高,分布式光伏系统的数据分析与优化显得尤为重要。文章阐述了长短期记忆网络模型的构建,旨在从分布式光伏系统中发掘数据价值,以准确预测光伏发电量及识别系统异常模式。通过试验验证,模型在预... 详细信息

随着可再生能源在能源结构中占比的不断提高,分布式光伏系统的数据分析与优化显得尤为重要。文章阐述了长短期记忆网络模型的构建,旨在从分布式光伏系统中发掘数据价值,以准确预测光伏发电量及识别系统异常模式。通过试验验证,模型在预测发电量方面展现了高度的准确性,并能有效识别出数据中的异常模式,为光伏系统的优化运行提供了可靠支持。

关键词：分布式光伏系统长短期记忆网络数据价值发掘异常模式识别

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分布式光伏配网储能优化及系统研究

电力系统装备 2024年第7期 97-99页

作者：杜虎阚斌高武山王志杰陈延虎中节能甘肃武威太阳能发电有限公司甘肃武威733000

为改善配网电能质量、实现配网负荷水平的调节,文章对分布式光伏配网储能系统进行优化处理,建立双阶段优化配置模型,采用改进的遗传算法对两阶段储能优化配置模型进行求解,以此确定储能的最佳配置方案及运行优化策略。

关键词：分布式光伏系统优化遗传算法

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基于图像识别的光伏板积灰判断研究

电力系统装备 2024年第7期 103-105页

作者：高武山阚斌王志杰陈志文张克玉中节能甘肃武威太阳能发电有限公司甘肃武威733000

光伏板长期工作在户外环境中,由于大气中尘埃、颗粒物、工业排放物等的沉积会造成光伏板较为严重的积灰现象。光伏板积灰不仅影响其发电效率,还严重影响光伏板的使用寿命,甚至造成光伏板的损毁。文章介绍了光伏板积灰的形成原因和对光... 详细信息

光伏板长期工作在户外环境中,由于大气中尘埃、颗粒物、工业排放物等的沉积会造成光伏板较为严重的积灰现象。光伏板积灰不仅影响其发电效率,还严重影响光伏板的使用寿命,甚至造成光伏板的损毁。文章介绍了光伏板积灰的形成原因和对光伏系统的影响,分析了图像识别技术在光伏板积灰检测中的原理和方法,提出了基于深度学习的图像处理算法,以实现高效准确的积灰检测。

关键词：光伏发电深度学习光伏板积灰图像识别

Flexible organic solar cells for biomedical devices

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Nano Research 2021年第9期14卷 2891-2903页

作者： bin kan Faheem Ershad Zhoulyu Rao Cunjiang Yu Department of Mechanical Engineering University of HoustonHoustonTX 77204USA Department of Biomedical Engineering University of HoustonHoustonTX 77204USA Materials Science and Engineering Program University of HoustonHoustonTX 77204USA Department of Electrical and Computer Engineering University of HoustonHoustonTX 77204USA Texas Center for Superconductivity University of HoustonHoustonTX 77204USA

Organic solar cells(OSCs),particularly made based on solution processing methods,have made significant progress over the past decades through the concurrent evolution of organic photovoltaic materials and device ***,high power conversion efficiencies around 18%and over 16%have been demonstrated in both rigid and flexible OSCs,*** most of the OSC research has centered on efficiency and cost,their emerging and potential usages in many critical applications,particularly in biomedical fields have been *** this mini-review,we will briefly discuss the high-performance organic photovoltaic materials and the representative flexible OSCs to give a scope on the recent rapid development of ***,we will review some progress on the applications of OSCs in biomedical devices and integrated *** potential challenges associated with integrating OSCs for biomedical devices will be put forward.

关键词： organic solar cells photovoltaic flexible biomedical bioelectronics

Calixarenes enabling well-adjusted organic-inorganic interface for inverted organic solar cells with 18.25%efficiency and multifold improved photostability under max power point tracking

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Science China Chemistry 2023年第1期66卷 195-201页

作者： Shitong Li Zheng Xiao Juan-Juan Li Zong-Ying Hu Yang Yang bin kan Dong-Sheng Guo Xiangjian Wan Zhaoyang Yao Chenxi Li Yongsheng Chen State Key Laboratory of Elemento-Organic Chemistry The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai University Tianjin300071China College of Materials Science and Engineering Nankai UniversityTianjin 300350China The Institute of Seawater Desalination and Multipurpose Utilization Ministry of Natural Resources(Tianjin)Tianjin 300192China

Compared with organic solar cells(OSCs) adopting conventional architecture,inverted OSCs have offered generally better stability,where Zn O is the most widely used electron transporting layer(ETL) *** ZnO-based inverted OSCs,a welltuned interface of organic(active layer)-inorganic(Zn O film) with matched surface energy(γS) is critical for both high performance and high *** this work,two typical calixarenes,C4A and Bu C4A,were employed as the tuning agents to adjust this organic-inorganic interface for ZnO-based inverted *** a result,with PM6:L8-BO as the active layer,significantly promoted power conversion efficiencies(PCEs) from 17.14%(for ZnO) to 18.25%(for ZnO/C4A) and 17.80%(for ZnO/Bu C4A) were *** studies indicate that the enhanced performance is due to the faster charge extraction process,the suppressed recombination and more ideal internal electric field in ZnO/calixarene-based *** addition,wellmatched interface energy and more ordered molecular aggregation in active layer effectively improved photostability and thermal stability for ZnO/calixarene-based *** results indicate that calixarenes could act as effective modifying agents of ZnO to improve inverted OSCs’ performance and stability simultaneously,and likely also stimulate calixarenes’ and other macromolecules’ broader studies in other organic electronic devices.

关键词： organic solar cell calixarenes interface adjustment ZnO modification high performance high stability

P-doped all-small-molecule organic solar cells with power conversion efficiency of 17.73%

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Science China Chemistry 2023年第8期66卷 2371-2379页

作者： Wanying Feng kangqiao Ma Guangkun Song Tianyin Shao Huazhe Liang Shudi Lu Yu Chen Guankui Long Chenxi Li Xiangjian Wan Zhaoyang Yao bin kan Yongsheng Chen State Key Laboratory and Institute of Element-Organic Chemistry The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin300071China School of Materials Science and Engineering National Institute for Advanced MaterialsNankai UniversityTianjin300350China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing100043China State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou510640China

All-small organic solar cells(ASM OSCs)inherit the advantages of the distinct merits of small molecules,such as well-defined structures and less batch-to-batch *** comparison with the rapid development of polymer-based OSCs,more efforts are needed to devote to improving the performance of ASM OSCs to close the performance gap between ASM and polymer-based ***,a well-known p-dopant named fluoro-7,7,8,8-tetracyano-p-quinodimethane(FTCNQ)was introduced to a highefficiency system of HD-1:BTP-e C9,and a high power conversion efficiency(PCE)of 17.15%was achieved due to the improved electrical properties as well as better morphology of the active layer,supported by the observed higher fill factor(FF)of 79.45%and suppressed non-radiative recombination ***,combining with the further morphology optimization from solvent additive of 1-iodonaphthalene(IN)in the blend film,the HD-1:BTP-e C9-based device with the synergistic effects of both FTCNQ and IN demonstrates a remarkable PCE of 17.73%(certified as 17.49%),representing the best result of binary ASM OSCs to date.

关键词： organic solar cells all-small-molecule power conversion efficiency p-dopant