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Alkyl chain modulation of asymmetric hexacyclic fused acceptor synergistically with wide bandgap third component for high efficiency ternary organic solar cells

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1713-1719页

作者： shufang li Huilan Guan Can Zhu Chaoyuan Sun Qingya Wei Jun Yuan Yingping Zou College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Institute of Carbon Neutrality and New Energy School of Electronics and InformationHangzhou Dianzi UniversityHangzhou 310018China

Herein,two asymmetric hexacyclic fused small molecule acceptors(SMAs),namely BP4F-HU and BP4F-UU,were *** elongated outside chains in the BP4F-UU molecule played a crucial role in optimizing the morphology of blend film,thereby improving charge mobility and reducing energy loss within the corresponding ***,the PM6:BP4F-UU device exhibited a higher open-circuit voltage(V_(oc))of 0.878 V compared to the PM6:BP4F-HU device with a V_(oc)of 0.863 ***,a new wide bandgap SMA named BTP-TA was designed and synthesized as the third component to the PM6:BP4F-UU host binary devices,which showed an ideal complementary absorption spectrum in PM6:BP4F-UU *** addition,BTP-TA can achieve efficient intermolecular energy transfer to BP4F-UU by fluorescence resonance energy transfer(FRET)pathway,due to the good overlap between the photoluminescence(PL)spectrum of BTP-TA and the absorption region of ***,ternary devices with 15wt%BTP-TA exhibits broader photon utilization,optimal blend morphology,and reduced charge recombination compared to the corresponding binary ***,PM6:BP4F-UU:BTP-TA ternary device achieved an optimal power conversion efficiency(PCE)of 17.83%with simultaneously increased V_(oc)of 0.905 V,short-circuit current density(J_(sc))of 26.14 mA/cm^(2),and fill factor(FF)of 75.38%.

关键词： asymmetric hexacyclic acceptor outside chain wide bandgap acceptor ternary organic solar cells

Anomaly detection in smart grid based on encoder-decoder framework with recurrent neural network

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The Journal of China Universities of Posts and Telecommunications 2017年第6期24卷 67-73页

作者： Zheng Fengming li shufang Guo Zhimin Wu Bo Tian Shiming Pan Mingming Beijing Laboratory of Advanced Information Networks Beijing University of Posts and Telecommunications Beijing 100876 China Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Beijing 100876 China State Grid Henan Electric Power Research Institute Zhengzhou 450052 China China Electric Power Research Institute Beijing 100192 China

Anomaly detection in smart grid is critical to enhance the reliability of power systems. Excessive manpower has to be involved in analyzing the measurement data collected from intelligent motoring devices while performance of anomaly detection is still not satisfactory. This is mainly because the inherent spatio-temporality and multi-dimensionality of the measurement data cannot be easily captured. In this paper, we propose an anomaly detection model based on encoder-decoder framework with recurrent neural network （RNN）. In the model, an input time series is reconstructed and an anomaly can be detected by an unexpected high reconstruction error. Both Manhattan distance and the edit distance are used to evaluate the difference between an input time series and its reconstructed one. Finally, we validate the proposed model by using power demand data from University of California, Riverside （UCR） time series classification archive and IEEE 39 bus system simulation data. Results from the analysis demonstrate that the proposed encoder-decoder framework is able to successfully capture anomalies with a precision higher than 95%.

关键词： smart grid encoder-decoder framework anomaly detection time series mining

An Open Chinese Space Industry Helpful For International Cooperation——An Interview with IAF President

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Aerospace China 2009年第4期10卷 16-17页

作者： Reng shufang,li Hui

On October 21,2009,adelegation from the International Astronautical Federation (IAF) visited China Aerospace Science and Technology Corporation (CASC) .

关键词：中国航天科技集团公司国际合作航天工业宇航宇宙航行记者采访共和国 IAC

An Optimal lifetime Utility Routing for 5G and Energy-Harvesting Wireless Networks

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ZTE Communications 2015年第1期13卷 35-42页

作者： Gina Martinez shufang li Chi Zhou Department of Electrical and Computer Engineering Illinois Institute of Technology Telecommunication Engineering Institute Beijing University of Posts and Telecommunication

Harvesting energy from environmental sources such as solar and wind can mitigate or solve the limited-energy problem in wireless sensor networks. In this paper, we propose an energy-harvest-aware route-selection method that incorporates harvest availability properties and energy storage capacity limits into the routing decisions. The harvest-aware routing problem is formulated as a lin- ear program with a utility-based objective function that balances the two conflicting routing objectives of maximum total and maxi- mum minimum residual network energy. The simulation results show that doing so achieves a longer network lifetime, defined as the time-to-first-node-death in the network. Additionally, most existing energy-harvesting routing algorithms route each traffic flow independently from each other. The LP formulation allows for a joint optimization of multiple trafic flows. Better residual energy statistics are also achieved by such joint consideration compared to independent optimization of each commodity.

关键词： routing 5G energy-harvesting wireless sensor networks

The clinical and genetic characteristics in children with mitochondrial disease in China

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Science China(life Sciences) 2017年第7期60卷 746-757页

作者： Fang Fang Zhimei liu Hezhi Fang Jian Wu Danmin Shen Suzhen Sun Changhong Ding Tongli Han Yun Wu Junlan Lv Lei Yang shufang li Jianxin Lv Ying Shen Department of Neurology Beijing Children 's Hospital Capital Medical University National Center for Children's Health Beijing 100045 China Inspection Medical School Wenzhou Medical College Wenzhou 325035 China Translational Medical Center The General Hospital of the Chinese People's Liberation Army Beijing 100853 China Department of Neurology Children's Hospital of Hebei Province Hebei Medical University Shijiazhuang 050030 China

Mitochondrial disease was a clinically and genetically heterogeneous group of diseases, thus the diagnosis was very difficult to clinicians. Our objective was to analyze clinical and genetic characteristics of children with mitochondrial disease in China. We tested 141 candidate patients who have been suspected of mitochondrial disorders by using targeted next-generation sequencing(NGS), and summarized the clinical and genetic data of gene confirmed cases from Neurology Department, Beijing Children's Hospital, Capital Medical University from October 2012 to January 2015. In our study, 40 cases of gene confirmed mitochondrial disease including eight kinds of mitochondrial disease, among which Leigh syndrome was identified to be the most common type, followed by mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes(MELAS). The age-of-onset varies among mitochondrial disease, but early onset was common. All of 40 cases were gene confirmed, among which 25 cases(62.5%)with mitochondrial DNA(mtDNA) mutation, and 15 cases(37.5%) with nuclear DNA(nDNA) mutation. M.3243A>G(n=7)accounts for a large proportion of mtDNA mutation. The nDNA mutations include SURF1(n=7),PDHA1(n=2),and NDUFV1,NDUFAF6, SUCLA2, SUCLG1, RRM2 B, and C12orf65, respectively.

关键词： mitochondrial disease targeted next generation sequencing clinical features gene

Research on the Relationship Between Soft and Hard Power of Enterprises

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Research on the Relationship Between Soft and Hard Power of ...

2019年第四届经济与企业管理国际学术会议

作者： Yanan Fu shufang li Inner Mongolia University of Technology

Since the concept of enterprise soft power was put forward,experts and scholars have shifted their research from the perspective of international politics to *** are mostly involved in the concept of soft power on the definition,characteristics,structural models,methods,which means that aspects of the study of soft power is more specific,but they ignore the hard power of the enterprise to *** a lot of relevant literature,based on the study of soft power,I defined the hard power and systematically defined the relationship between soft and hard power by using the triangle principle and DNA double helix model.

关键词： enterprise soft power enterprise hard power the relationship between hard and soft power

来源： cnki会议评论

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cnki会议

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澳大利亚草菇室内栽培技术

食用菌 1995年第5期17卷 34-36页

作者：廖世煌卢元祥 shufang li 广东微生物所广州510070 澳大利亚东兴公司

应澳大利亚东兴公司的邀请,我们于1992年8月抵达澳大利亚维多利亚州的阿维诺(Avenel),建立了澳洲首家草菇室内周年栽培的商业化菇场,初步获得成功,产品批量投放墨尔本等市场。现将其设备系统及配套的栽培工艺简报如下:

关键词：草菇室内栽培澳大利亚

Observation on the modifying activity of the protein from Elytrzgia repens rhizome for ice crystal

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Journal of Northeast Agricultural University(English Edition) 2007年第3期14卷 198-201页

作者： YANG Tao GONG shufang li Yan CHE Daidi College of Horticulture Northeast Agricultural University Harbin 150030 China

In winter, spring and summer, the rhizome of wild Elytrzgia repens of Heilongjiang Province was selected to extract the soluble which whole protein and the apoplastic protein, and analyzed by SDS-PAGE. The result indicated that there were two specific polypeptides in two types protein from winter; their relative molecular weight were identified as 52 ku and 26 ku by analyzing software; the apoplastic protein from winter had the ability of modifing the growth of ice crystal which appeared hexagonal in shape observed with the phase-contrast photomicroscope. So the apoplastic protein from winter has the antifreeze characters and the 52 ku protein is more likely the antifreeze protein

关键词： Elytrzgia repens apoplastic protein antifreeze proteins ice crystal modifying

助熔剂法合成钨氧氯化合物li23CuW10O40Cl5

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无机材料学报 2020年第7期35卷 834-838页

作者：李淑芳赵爽李满荣中山大学化学学院生物无机和合成化学教育部重点实验室广州510275

由于不同阴离子之间的电负性、离子半径、极化率和氧化态之间的差异,混合阴离子化合物可以产生不同于单一类型阴离子的新特性。混合阴离子金属材料在电子、湿度探测器、气体传感器、太阳能电池电极等领域有着广泛的应用前景。助熔剂方... 详细信息

由于不同阴离子之间的电负性、离子半径、极化率和氧化态之间的差异,混合阴离子化合物可以产生不同于单一类型阴离子的新特性。混合阴离子金属材料在电子、湿度探测器、气体传感器、太阳能电池电极等领域有着广泛的应用前景。助熔剂方法是一种广泛应用于混合离子晶体生长的方法,它以适当的金属盐作为助熔剂,在较温和的条件下进行复分解反应。助熔剂法在混合阴离子化合物的合成中具有重要意义。钨氧氯化合物li23CuW10O40Cl5单晶以高质量的li4WO5为前驱体,以CuCl2为助熔剂通过两步法合成。通过X射线单晶衍射确定其晶体结构。结果表明, li23CuW10O40Cl5结晶属于P63/mcm空间群,晶胞参数分别为a=1.02846(3) nm, c=1.98768(9) nm,V=1.82076(11) nm3, Z=2。单胞中分别包含五个晶体学独立的li原子,两个W原子,一个Cu原子,两个Cl原子以及五个O原子。结构中, W(1)原子和一个Cl原子及五个O原子相连接,形成畸变八面体,而W(2)原子与四个O原子相连接形成四面体,Cu原子与六个O原子相连形成八面体。因此,li23CuW10O40Cl5的晶体结构主要由[CuO6]和[W(1)O5Cl]八面体以及[W(2)O4]四面体构成。助熔剂法合成钨氧氯化合物li23CuW10O40Cl5对今后探索新型的混合阴离子化合物具有重要意义。

关键词：钨氧氯化合物 CuCl2助熔剂晶体结构 X射线衍射