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Dual‑Donor‑Induced Crystallinity Modulation Enables 19.23% Efficiency Organic Solar Cells

Nano-Micro Letters 2025年第3期17卷 376-388页

作者： Anhai Liang Yuqing Sun Sein Chung Jiyeong Shin Kangbo Sun Chaofeng Zhu Jingjing zhao zhenmin zhao Yufei Zhong Guangye Zhang Kilwon Cho Zhipeng Kan Center On Nanoenergy Research Institute of Science and Technology for Carbon Peak&NeutralitySchool of Physical Science&TechnologyGuangxi UniversityNanning 530004People’s Republic of China Department of Chemical Engineering Pohang University of Science and TechnologyPohang 37673South Korea College of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118People’s Republic of China Zhejiang Engineering Research Center for Fabrication and Application of Advanced Photovoltaic Materials School of Materials Science and EngineeringNingboTech UniversityNingbo 315100People’s Republic of China State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures Nanning 530004People’s Republic of China

Trap-assisted charge recombination is one of the primary limitationsof restricting the performance of organic solar cells. However, effectivelyreducing the presence of traps in the photoactive layer remains ***, wide bandgap polymer donor PTzBI-dF is demonstrated as an effectivemodulator for enhancing the crystallinity of the bulk heterojunction active layerscomposed of D18 derivatives blended with Y6, leading to dense and orderedmolecular packings, and thus, improves photoluminescence quenching *** a result, the photovoltaic devices exhibit reduced trap-assisted charge recombinationlosses, achieving an optimized power conversion efficiency of over 19%.Besides the efficiency enhancement, the devices comprised of PTzBI-dF as athird component simultaneously attain decreased current leakage, improved chargecarrier mobilities, and suppressed bimolecular charge recombination, leading toreduced energy losses. The advanced crystalline structures induced by PTzBI-dFand its characteristics, such as well-aligned energy level, and complementaryabsorption spectra, are ascribed to the promising performance *** findings suggest that donor phase engineering is a feasible approach to tuning the molecular packings in the active layer, providingguidelines for designing effective morphology modulators for high-performance organic solar cells.

关键词： Trap-assisted charge recombination Photoluminescence Miscibility Current leakage Power conversion efficiency

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Secrecy energy efficiency maximization for UAV-enabled multi-hop mobile relay system

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The Journal of China Universities of Posts and Telecommunications 2022年第3期29卷 81-91页

作者： Miao Jiansong Li Hairui Zheng Ziyuan Wang Chu zhao zhenmin Beijing Laboratory of Advanced Information Networks Beijing University of Posts and TelecommunicationsBeijing 100876China

To deal with the secrecy issues and energy efficiency issues in the unmanned aerial vehicles(UAVs) assisted communication systems, an UAV-enabled multi-hop mobile relay system is studied in an urban environment. Multiple rotary-wing UAVs with energy budget considerations are employed as relays to forward confidential information between two ground nodes in the presence of multiple passive eavesdroppers. The system secrecy energy efficiency(SEE), defined by the ratio of minimum achievable secrecy rate(SR) to total propulsion energy consumption(PEC), is maximized via jointly optimizing the trajectory and transmit power of each UAV relay. To solve the formulated non-convex fractional optimization problem subject to mobility, transmit power and information-causality constraints, an effective iterative algorithm is proposed by applying the updated-rate-assisted block coordinate decent method, successive convex approximation(SCA) technique and Dinkelbach method. Simulation results demonstrate the effectiveness of the proposed joint trajectory design and power control scheme.

关键词： secrecy transmission unmanned aerial vehicle(UAV) trajectory optimization mobile relay

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Application of digital technology in nasal reconstruction

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Chinese Journal of Plastic and Reconstructive Surgery 2021年第4期3卷 204-208页

作者： Yidan Sun zhenmin zhao Yang An Department of Plastic Surgery Peking University Third HospitalBeijing 100191China

Nasal defects are facial defects caused by trauma,tumors,or congenital diseases that seriously damage a patient’s physical and mental *** defects,from skin defects to total nasal defects,require surgical repair and reconstruction to restore the appearance and function of the nose,which have always been challenges for *** development of digital technology has increased the possibility of nasal *** technology is involved in the preoperative,intraoperative,and postoperative stages of nasal construction and is of great significance in improving the effect of this *** article reviews the application of major digital technologies,including three-dimensional(3D)imaging technology,computer-assisted surgical navigation,and 3D printing,in nasal reconstruction and discusses the shortcomings of the current application of digital technology.

关键词： Nasal reconstruction Digital technology Computer-aided design/manufacturing Three-dimensional printing

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Identification of Estrogen-associated Intrinsic Aging Genes in Chinese Han Female Skin by cDNA Microarray Technology

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Biomedical and Environmental Sciences 2011年第4期24卷 364-373页

作者： YAN Wei zhao zhenmin ZHANG LiLi WANG DunMei YAN Li YIN NingBei WU Di ZHANG Feng Plastic Surgery Hospital Chinese Academy of Medical Science Peking Union Medical College Beijing 100144 China CAS Key Laboratory of Genome Sciences and Information Beijing Institute of Genomics Chinese Academy of Sciences Beijing 100029 China

Objective Estrogens play an important role in intrinsic skin *** associated changes in global gene expression are poorly *** We used the Illumina microarray platform to obtain comprehensive gene expression profiles in female Chinese Han skin,and confirmed the data by quantitative real-time PCR （Q-RT-PCR）.Results We found 244 genes significantly related to estrogen-associated intrinsic skin aging,and some of these genes were confirmed by *** also performed functional analysis by both Gene Ontology annotation and enrichment of the Kyoto Encyclopedia of Genes and Genomes （KEGG） pathways *** functional analysis revealed 11 biological pathways （including the KEGG pathways,the mitogen-activated protein kinase signaling pathway and metabolic pathways）,that were associated with multiple cellular functions which may be involved in intrinsic skin *** This study suggests that estrogen-associated intrinsic skin aging is a complicated biological process involving many genes and pathways.

关键词： Estrogen Intrinsic aging Microarray Metabolism

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Factors influencing myogenic differentiation of adipose-derived stem cells and their application in muscle regeneration

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Chinese Journal of Plastic and Reconstructive Surgery 2022年第3期4卷 126-132页

作者： Na Liu Guanhuier Wang Yonghuan Zhen Yujia Shang Fangfei Nie Lingjuan Zhu zhenmin zhao Yang An Department of Plastic Surgery Peking University Third HospitalBeijing 100191China School of Traditional Chinese Materia Medica Key Laboratory of Structure-Based Drug Design&Discovery of Ministry of EducationShenyang Pharmaceutical UniversityShenyang 110016China

Skeletal muscle regeneration mainly depends on muscle satellite cells;however,these cells are not sufficient for supporting repair and regeneration in volumetric muscle loss(VML),Duchenne muscular dystrophy,and other muscle injuries or muscle *** such,much work has been conducted in recent years to search for myogenic stem ***-derived stem cells(ADSCs)have a wide range of sources,rapid growth,and multi-directional differentiation potential,and have become vital candidates for muscle *** factors influence the myogenic differentiation capacity of *** paper reviews the regulatory aspects and possible factors that have been identified in recent years to affect myogenic differentiation of *** on these factors,gene editing,and perfusion concepts,a method was proposed to achieve maximal differentiation efficiency of *** study focused on the application of ADSCs in muscle regeneration and *** on the importance of myogenic differentiation of ADSCs for the repair and regeneration of muscle damage,this study provides a basis for future research surrounding the efficient induction of myogenic differentiation of ADSCs in vitro.

关键词： Adipose-derived stem cells Muscle regeneration Muscle diseases Myogenic differentiation Regulatory factors

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Forensic investigation of 23 autosomal STRs and application in Han and Mongolia ethnic groups

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Forensic Sciences Research 2018年第2期3卷 138-144页

作者： Xiang Sheng Yali Wang Jiashuo Zhang Liqin Chen Yuan Lin zhenmin zhao Chengtao Li Suhua Zhang Shanghai Key Laboratory of Forensic Medicine Shanghai Forensic Service PlatformAcademy of Forensic ScienceShanghaiChina Department of Forensic Medicine Medical College of Soochow UniversitySuzhouChina Department of Forensic Medicine Inner Mongolia Medical UniversityHohhotChina

A forensic validation study of the Early Access HuaxiaTM Platinum Polymerase Chain Reaction (PCR) kit was completed to document the performance capabilities and *** genotyping of DNA samples was consistent across a large range of template DNA concentrations,with complete profiles obtained at 0.125 ng;however,no more than 2 mm× 1.2 mm punches of samples would be recommended for direct *** size precision and accuracy test revealed the genotyping ability;while consistent results were obtained when comparing the kit with other commercially available *** addition,the whole PCR amplification can finish within approximately 45 min,making the system suitable for ***,only partial profiles may be obtained with challenging samples,including DNA stored on Foam-Tipped Applicators (FTA) cards or some case *** the forensic application in ethnic groups,a total of 282 and 229 alleles were obtained in Han and Mongolia,*** the 23 short tandem repeats were independent from each other,the cumulative power of exclusion in duos was 0.999999157188 and the cumulative power of exclusion in trios was 0.999999999859 in the Han group while the cumulative power of exclusion in duos (CPEduo) was 0.999 998 848 26 and cumulative power of exclusion in trios (CPEtrio) was 0.999 999 999 79 in the Mongolia *** good internal consistency was found between the two investigated groups and the Sichuan Han,Hui,Tibetan and Uygur according to available reference data.

关键词： Forensic genetics short tandem repeats(STRs) Early Access HuaxiaTM Platinum PCR kit

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基于虚拟同步发电机的固态变压器交流端口柔性控制策略研究

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电力系统保护与控制 2023年第4期51卷 138-147页

作者：程静赵振民可再生能源发电与并网控制教育部工程研究中心(新疆大学) 新疆乌鲁木齐830017 国网新疆电力有限公司电力科学研究院新疆乌鲁木齐830011

固态变压器(solid state transformer, SST)能实现传统电力变压器的变压、隔离作用,还可实现灵活的电能调控作用,但不具备传统同步发电机的机械特性及同步运行机制。当分布式电源经SST接入电网时,由于其出力的随机性和波动性,将对上级... 详细信息

固态变压器(solid state transformer, SST)能实现传统电力变压器的变压、隔离作用,还可实现灵活的电能调控作用,但不具备传统同步发电机的机械特性及同步运行机制。当分布式电源经SST接入电网时,由于其出力的随机性和波动性,将对上级电网造成冲击,导致电网电压/频率波动。提出一种基于虚拟同步发电机的SST交流端口控制策略。首先,建立模块化多电平型输入级和同步发电机等效模型,将虚拟同步发电机原理融入输入级控制策略,以提高SST并网端口的电能质量、惯性及阻尼特性,并使其具备参与电网调频、调压能力。其次,提出储能装置辅助调频控制,保障SST参与一次调频时低压系统负载功率消耗平衡。最后,确立了输出级虚拟同步发电机控制策略,以提高低压交流端口负荷功率响应特性,实现SST对上级电网的友好性。在Matlab/Simulink平台搭建仿真模型,验证了所提SST拓扑结构及其控制策略的正确性和有效性。

关键词：虚拟同步发电机固态变压器分布式电源模块化多电平变换器控制策略

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Application of decellularization-recellularization technique in plastic and reconstructive surgery

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Chinese Medical Journal 2023年第17期136卷 2017-2027页

作者： Yujia Shang Guanhuier Wang Yonghuan Zhen Na Liu Fangfei Nie zhenmin zhao Hua Li Yang An Department of Plastic Surgery Peking University Third HospitalHaidian DistrictBeijing 100191China Wuya College of Innovation Key Laboratory of Structure-Based Drug Design&DiscoveryMinistry of EducationShenyang Pharmaceutical UniversityShenyangLiaoning 110016China

In the field of plastic and reconstructive surgery,the loss of organs or tissues caused by diseases or injuries has resulted in challenges,such as donor shortage and *** recent years,with the development of regenerative medicine,the decellularization-recellularization strategy seems to be a promising and attractive method to resolve these *** decellularized extracellular matrix contains no cells and genetic materials,while retaining the complex ultrastructure,and it can be used as a scaffold for cell seeding and subsequent transplantation,thereby promoting the regeneration of diseased or damaged tissues and *** review provided an overview of decellularization-recellularization technique,and mainly concentrated on the application of decellularization-recellularization technique in the field of plastic and reconstructive surgery,including the remodeling of skin,nose,ears,face,and ***,we proposed the challenges in and the direction of future development of decellularization-recellularization technique in plastic surgery.

关键词： Decellularization Recellularization Extracellular matrix Plastic surgery Tissue regeneration

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不平衡电压条件下VSG-SST控制策略

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太阳能学报 2023年第3期44卷 393-400页

作者：程静赵振民张陵南东亮新疆大学电气工程学院乌鲁木齐830017 新疆大学可再生能源发电与并网控制工程技术教育部工程研究中心乌鲁木齐830017 国网新疆电力有限公司电力科学研究院乌鲁木齐830011

当低压配电网电压不平衡时,产生的负序分量将引起传统VSG控制中SST输出级发生电流不平衡和功率振荡现象,为此该文提出基于改进VSG的T型三电平输出级联合控制策略,以提高输出级电能质量。首先,对不平衡电压下VSG电流不平衡及功率振荡进... 详细信息

当低压配电网电压不平衡时,产生的负序分量将引起传统VSG控制中SST输出级发生电流不平衡和功率振荡现象,为此该文提出基于改进VSG的T型三电平输出级联合控制策略,以提高输出级电能质量。首先,对不平衡电压下VSG电流不平衡及功率振荡进行机理分析;其次,基于VSG控制算法和瞬时功率理论设计新型电流基准发生器,与正负序电流调节器实现级联控制,以此保障SST输出电流平衡及有功/无功功率恒定,实现不同运行工况的可靠切换;最后,对正负序分量分离方法和中点电位平衡算法进行分析研究,并对控制策略进行仿真验证。结果表明,所提联合控制策略有效可行,能保障电压三相不平衡工况下SST输出级并网电流功率质量。

关键词：电能质量固态变压器虚拟同步机 T型三电平电网电压不平衡控制策略

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机械牵张力对创面愈合瘢痕形成不同时期影响机制研究进展

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中华整形外科杂志 2024年第2期40卷 243-248页

作者：张文涵安阳赵振民北京大学第三医院成形外科北京100191

创面愈合瘢痕形成对患者的正常生活及心理健康造成影响,是整形外科中的棘手问题。近年来机械力及其信号传导对创口愈合的影响机制受到广泛关注,并为防治病理性瘢痕的相关研究提供了新思路。该文综述了机械牵张力对不同时期创面愈合影响... 详细信息

创面愈合瘢痕形成对患者的正常生活及心理健康造成影响,是整形外科中的棘手问题。近年来机械力及其信号传导对创口愈合的影响机制受到广泛关注,并为防治病理性瘢痕的相关研究提供了新思路。该文综述了机械牵张力对不同时期创面愈合影响机制的研究进展,在伤口愈合的止血炎症期、增殖期和组织重塑期3个阶段中,机械牵张力通过复杂的信号传导与反馈机制引起慢性炎症、纤维化增生、血管形成、细胞外基质重塑等生物学反应,对伤口愈合和瘢痕形成造成影响。该文还综述了近年临床与实验室关于创面愈合瘢痕形成的机械牵张力治疗研究的进展。

关键词：创面愈合机械牵张力信号传导病理性瘢痕

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