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Active Layer Morphology Engineering of All-polymer Solar Cells by Systematically Tuning Molecular Weights of Polymer Donors/Acceptors

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Chinese Journal of Polymer Science 2021年第11期39卷 1449-1458页

作者： Ning Wang ying-jian yu Ru-Yan Zhao Ji-Dong Zhang Jun Liu Li-Xiang Wang State Key Lboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China

In all-polymer solar cells(APSCs),number-average molecular weights(Mns)of polymer donors and polymer acceptors play an important role in active layer morphology and photovoltaic *** this work,based on a series of APSCs with power conversion efficiency of approaching 10%,we study the effect of Mns of both polymer donor and polymer acceptor on active layer morphology and photovoltaic performance of *** select poly[4-(5-(4,8-bis(5-((2-butyloctyl)thio)thiophen-2-yl)-6-methylbenzo[1,2-b:4,5-b’]dithiophen-2-yl)thiophen-2-yl)-5,6-difluoro-2-(2-hexyldecyl)-7-(5-methylthiophen-2-yl)-2 H-benzo[d][1,2,3]triazole](CD1)as the polymer donor and poly[4-(5-(5,10-bis(2-dodecylhexadecyl)-4,4,9,9-tetrafluuoro-7-methyl-4,5,9,10-tetrahydro3 a,5,8,10-tetraaza-4,9-diborapyren-2-yl)thiophen-2-yl)-7-(5-methylthiophen-2-yl)benzo[c][1,2,5]thiadiazole](PBN-14)as the polymer *** Mns of polymer donor CD1 are 14.0,35.5 and 56.1 kg/mol,respectively,and the Mns of polymer acceptor PBN-14 are 32.7,72.4 and 103.4 kg/mol,*** get the desired biscontinueous fibrous network morphololgy of the polymer donor/polymer acceptor blends,at least one polymer should have high or medium ***,when the Mn of polymer acceptor is high,the active layer morphology and APSC device performance are insensitive to the Mn of polymer *** optimal APSC device performance is obtained when the Mn of both the polymer donor and the polymer acceptor are *** results provide a comprehensive and deep understanding on the interplay and the effect of Mn of polymer donors and polymer acceptors in highperformance APSCs.

关键词： All-polymer solar cells Molecular weights Polymer aggregation Active layer morphology

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Clinical effect of ultrasound-guided nerve block and dexmedetomidine anesthesia on lower extremity operative fracture reduction

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World Journal of Clinical Cases 2022年第13期10卷 4064-4071页

作者： Cheng-Bin Ao Ping-Lei Wu Liang Shao jian-ying yu Wei-Guo Wu Department of Anesthesiology The People’s Hospital of YuhuanTaizhou 317600Zhejiang ProvinceChina Department of Orthopedics Taizhou Luqiao Second People’s HospitalTaizhou 318000Zhejiang ProvinceChina

BACKGROUND Lower extremity fractures are mainly treated by surgical reduction,but this operation is often affected by the patient’s level of agitation and the type of anesthesia *** main treatment for lower-extremity fractures is operative ***,operations can often be affected by both agitation and the degree of ***,it is of great importance to develop an effective anesthesia program to effectively ensure the progress of *** To discuss the effect of ultrasound-guided nerve block combined with dexmedetomidine anesthesia in lower extremity fracture *** A total of 120 hospital patients with lower extremity fractures were selected for this retrospective study and divided into an observation group(n=60)and a control group(n=60)according to the anesthesia scheme;the control group received ultrasound-guided nerve block;the observation group was treated with dextromethomidine on the basis of the control group,and the mean arterial pressure,heart rate(HR),and blood oxygen saturation were observed in the two *** The mean arterial pressure of T1,T2 and T3 in the observation group were 94.40±7.10,90.84±7.21 and 91.03±6.84 mmHg,significantly higher than that of the control group(P<0.05).The observation group’s HR at T1 was 76.60±7.52 times/min,significantly lower than that of the control group(P<0.05);The observation group’s HR at T2 and T3 was 75.40±8.03 times/min and 76.64±7.11 times/min,significantly higher than that of the control group(P<0.05).The observation group’s visual analog score at 2 h,6 h and 12 h after operation was 3.55±0.87,2.84±0.65 and 2.05±*** recovery time was 15.51±4.21 min,significantly lower than that of the control group(P<0.05).Six hours post-anesthesia,epinephrine and norepinephrine in the observation group were 81.10±21.19 pg/mL and 510.20±98.27 pg/mL,significantly lower than that of the control group(P<0.05),and the mini-mental state exam score of the observation group was 25.51±1

关键词： Ultrasound Nerve block Dexmedetomidine Lower extremity fracture Anesthesia effect

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Implementation of Computational Electromagnetic on Distributed Systems

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The Journal of China Universities of Posts and Telecommunications 2002年第3期9卷 32-37页

作者： LIU Bao hua, LU ying hua, CUI jian, yu Xue ping (Beijing Universities of Ports and Telecommunications, Beijing 100876, P.R. China) Beijing Universities of Ports and Telecommunications Beijing 100876 P.R. China

Now the new generation of technology could raise the bar for distributedcomputing. It seems to be a trend to solve computational electromagnetic work on a distributedsystem with parallel computing techniques. In this paper, we analyze the parallel characteristics ofthe distributed system and the possibility of setting up a tightly coupled distributed system byusing LAN in our lab . The analysis of the performance of different computational methods, such asFEM, MOM, FDTD and finite difference method, are given. Our work on setting up a distributed systemand the performance of the test bed is also included . At last, we mention the implementation of oneof our computational electromagnetic codes.

关键词： computational electromagnetics parallel computing algorithm distributedcomputing technique

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Protective effect of chrysoeriol against doxorubicin-induced cardiotoxicity in vitro

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Chinese Medical Journal 2009年第21期122卷 2652-2656页

作者： LIU Zhe SONG Xiao-dong XIN ying WANG Xiao-jian yu Hui BAI Yong-yi LIU Jun-hao HANG Chan-na HUI Ru-tai Sino-German Laboratory for Molecular Medicine Key Laboratory for Clinical Cardiovascular Genetics of Ministry of Education Cardiovascular Institute & Fu Wai Hospital Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100037 China

Background The use of doxorubicin （DOX） is limited by its dose-dependent cardiotoxicity. Reactive oxygen species （ROSs） play an important role in the pathological process of DOX-induced cardiotoxicity. The aim of this study was to evaluate the protective effect of chrysoeriol, a flavone compound, against DOX-induced apoptosis and death in H9c2 cells and to find out its preliminary mechanism. Methods We used 3-（4,5-dimethylthiazol-2-yl）-2,5-diphenyl-2H-tetrazolium bromide （MTT） assay, Hoechst33258 staining and measurement of lactate dehydrogenase （LDH） release to evaluate the protective effect of chrysoeriol against DOX-induced apoptosis and death in H9c2 cells. To find out the mechanism of this protective effect, we observed the immunofluorescence of intracellular ROS and measured the activities of malondialdehyde （MDA）, superoxide dismutase （SOD） and glutathione peroxidase （GPx）. Furthermore, we evaluated the effect of chrysoeriol on the antitumor activity of DOX in HeLa cells with MTT assay. Results The results of MTT assay, Hoechst 33258 staining and measurement of LDH release showed that chrysoeriol significantly reduced doxorubicin-induced apoptosis and cell death. Chrysoeriol at a dose of 20 μg/ml notably reduced intracellular ROS, decreased the concentration of MDA in the supernatant of DOX-treated H9c2 cells and increased SOD and GPx activities to their normal levels. Further study showed that the addition of chrysoeriol did not affect the antitumor activity of DOX. Conclusion Chrysoeriol could potentially serve as a novel cardioprotective agent against DOX-induced cardiotoxicity without affecting the antitumor activity of DOX.

关键词： chrysoeriol doxorubicin cardiotoxicity reactive oxygen species

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Nanostructured ZnO/BiVO_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao yu yingjie Zhou Yao Lin ying Wu Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVO_(4)porous spheres modified by ZnO were designed and synthesized using a facile two-step *** resulting ZnO/BiVO_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40wt%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along with good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active ***,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

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Observation of topological charge transformations in acoustic vortex using passive periodic systems

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 140-147页

作者： Di-Chao Chen Xie Liu Changqing Xu Da-jian Wu ying Cheng Xiao-Jun Liu School of Physics and Technology Nanjing Normal University Key Laboratory of Modern Acoustics School of Physics Nanjing University

Vortex transmutation utilizes a periodic system, which not only enables the alteration of the topological charge(TC) of unstable input vortices but also facilitates their transformation into stable structures. This approach is crucial for investigating the characteristics of vortices in various wave systems. Here, we achieve acoustic vortex TC transmutation by employing a welldesigned dual-structured plate external system(DPES). The interactions between the acoustic vortex and the finite-order discrete rotational symmetry lead to the transformation of its topological charge when complete rotational symmetry is broken to Nthorder discrete symmetry. Our results experimentally demonstrate the acoustic vortex TC transmutation based on passive artificial structures, enabling numerous applications in particle manipulation and information multiplexing as well as advancing our understanding and control over free-space acoustic vortices.

关键词： acoustic vortex topological charge transformation artificial structure

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Ideal Bi-Based Hybrid Anode Material for Ultrafast Charging of Sodium-Ion Batteries at Extremely Low Temperatures

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NANO-MICRO LETTERS 2025年第1期17卷 1-16页

作者： Bai, Jie Jia, jian Hui Wang, yu Yang, Chun Cheng jiang, Qing Jilin Univ Key Lab Automobile Mat Sch Mat Sci & Engn Minist Educ Changchun 130022 Peoples R China

Metallic nanoparticles with excellent size controllability and high loading rate are obtained via ultrafast high temperature shock *** Bi/CNRs-15 electrode exhibits an unprecedented rate performance (237.9 mAh g-1 at 2 A g-1) at - 60 degrees C, while the energy density of the full cell can reach to 181.9 Wh kg-1 at - 40 degrees C.A novel strategy of high-rate activation is proposed to obtain high capacity and superior stability at low temperature by creating new active sites for interfacial reaction. Sodium-ion batteries have emerged as competitive substitutes for low-temperature applications due to severe capacity loss and safety concerns of lithium-ion batteries at - 20 degrees C or lower. However, the key capability of ultrafast charging at ultralow temperature for SIBs is rarely reported. Herein, a hybrid of Bi nanoparticles embedded in carbon nanorods is demonstrated as an ideal material to address this issue, which is synthesized via a high temperature shock method. Such a hybrid shows an unprecedented rate performance (237.9 mAh g-1 at 2 A g-1) at - 60 degrees C, outperforming all reported SIB anode materials. Coupled with a Na3V2(PO4)3 cathode, the energy density of the full cell can reach to 181.9 Wh kg-1 at - 40 degrees C. Based on this work, a novel strategy of high-rate activation is proposed to enhance performances of Bi-based materials in cryogenic conditions by creating new active sites for interfacial reaction under large current.

关键词： Bi nanoparticles High temperature shock High-rate activation Ultrafast charging Low-temperature sodium-ion batteries

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Isolation and short term cultivation of swine hepatocytes for bioartificial liver support system

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Hepatobiliary & Pancreatic Diseases International 2005年第2期4卷 249-253页

作者： Jun Li, Lan-Juan Li, Hong-Cui Chao, Qian Yang, Xiao-Li Liu, Ji-Fang Sheng, Hai-ying yu and jian-Rong Huang Hangzhou, China Key Laboratory of Infectious Disease, Ministry of Pub- lic Health of China Institute of Infectious Disease, Department of Infectious Diseases, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China Department of Infectious Diseases The First Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310003 China. lilj@***

BACKGROUND: The demand for the clinical use of hepa- tocytes is increasing. The aim of this study was to develop a method for procurement of high qualitative pig hepatocytes and to evaluate the state of freshly isolated and cultured hepatocytes. METHODS: The domestic extracorporeal circulating perfu- sion apparatus was used to isolate and harvest swine hepato- cytes by the two-step perfusion method with EDTA and collagenase. The viability, function and morphology of the freshly isolated and cultured cells were evaluated and ob- served by the trypan blue exclusion test, biochemical mea- surements, phase contrast microscopy and transmission electron micrography (TEM). RESULTS: The total yield of isolated hepatocytes reached to 1.5(±0.4)×l010 per liver with a viability of 92(±5)%, and the purity of hepatocytes reached to 98% Immediately after isolation, phase-contrast microscope and TEM showed that undamaged hepatocytes appeared bright, translucent and spherical in shape, with a characteristic well-contrasted border. After 24 hours, the concentrations of alanine aminotransferase (ALT), aspartate aminotrans- ferase ( AST ), lactate dehydrogenase ( LDH ), albumin (ALB), creatinine (Cr) and blood urea nitrogen (BUN) in the fluid of culture were declined significantly. CONCLUSION: This method of procuring swine hepato- cytes could get high quality cells with active metabolic function.

关键词： bioartificial liver support system porcine hepatocytes cell isolation cell transplantation

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2株耐碳青霉烯类植生拉乌尔菌耐药基因检测分析

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中华医院感染学杂志 2018年第6期28卷 815-817,821页

作者：鲁勇汪一萍马坚应建飞俞燕红宁波市鄞州人民医院检验科浙江宁波315040 宁波市鄞州人民医院呼吸科浙江宁波315040

目的研究耐碳青霉烯类抗菌药物的植生拉乌尔菌耐药机制。方法收集2014年10月-2015年03月临床分离的两株来自痰液标本耐碳青霉烯类植生拉乌尔菌,采用Vitek2-compact全自动微生物分析仪进行细菌鉴定,并用16SrRNA进行菌株确认,采用E-test... 详细信息

目的研究耐碳青霉烯类抗菌药物的植生拉乌尔菌耐药机制。方法收集2014年10月-2015年03月临床分离的两株来自痰液标本耐碳青霉烯类植生拉乌尔菌,采用Vitek2-compact全自动微生物分析仪进行细菌鉴定,并用16SrRNA进行菌株确认,采用E-test进行药敏试验,用PCR扩增检测碳青霉烯酶(KPC、GES、IMI、NDM、VIM、IMP、SIM、OXA-48)、超广谱β内酰胺酶(TEM、SHV、CTX-M、VEB、PER)、质粒介导的喹诺酮耐药基因(qnrA、qnrB、qnrS、aac(6')-Ib-cr)以及Ⅰ类整合子可变区结构,Southern杂交方法检测2株菌株质粒相关情况。结果 1号菌株携带blaKPC-2和qnrB4耐药基因,Ⅰ类整合子基因盒种类为arr-3-dfrA27;2号菌株携带blaIMP-4、blaTEM-1、blaCTX-M-3、blaSHV-12、qnrS1和aac(6')-Ib-cr等耐药基因,但无相关整合子基因盒结构。质粒分析发现blaKPC-2和blaIMP-4均位于54kb-60kb可结合质粒上。结论两株耐碳青霉烯类泛耐药植生拉乌尔菌分别产KPC-2和IMP-4型碳青霉烯酶,需加强耐药监测,避免多重耐药菌播散。

关键词：植生拉乌尔菌碳青霉烯酶质粒 KPC-2 IMP-4

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Broadband and perfect terahertz absorber based on multilayer metamaterial with cross-ring patterned structures

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Optoelectronics Letters 2025年第1期21卷 1-6页

作者： WEN Jin LIU Zhanzhi WU Zhengwei PAN yu ZHANG ying School of Science Xi'an Shiyou University Shaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells

Broadband and perfect terahertz absorber based on multilayer metamaterial using cross-ring patterned structures is proposed and investigated. The structure of the absorber is double absorption layers consisting of a chromium cross ring and eight isosceles right triangles. The unique structure of the double absorbing layers excites the electric dipole multimode resonance, giving rise to high absorption performance. Meanwhile, the influence of construal parameters on absorber behavior is also discussed. The numerical results show that the absorption achieves over 90% ranging from 2.45 THz to 6.25 THz and 99% absorption in the range of 3.7—5.3 THz. The realization of broadband and perfect absorber is described using the impedance matching principle. It is obviously found that the absorber is insensitive to the high angle of incidence for both transverse electric(TE) and transverse magnetic(TM) polarizations. Compared with the former reports, this absorber has remarkable improved absorption efficiency and smaller period. The terahertz absorber may be found applications in the fields of energy capture and thermal detection.

关键词： Metamaterials

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