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20篇 您的检索式:作者名="Zhang Chenxin"
    题名 作者 年代 出处 被引量
1Origin of High Efficiency and Long-Term Stability in Ionic Liquid Perovskite Photovoltaic显示文摘Environment-friendly protic amine carboxylic acid ionic liquids(ILs)as solvents is a significant breakthrough with respect to traditional highly coordinating and toxic solvents in achieving efficient and stable perovskite solar cells(PSCs)with a simple one-step air processing and without an antisolvent treatment approach.However,it remains mysterious for the improved efficiency and stability of PSCs without any passivation strategy.Here,we unambiguously demonstrate that the three functions of solvents,additive,and passivation are present for protic amine carboxylic acid ILs.We found that the ILs have the capability to dissolve a series of perovskite precursors,induce oriented crystallization,and chemically passivate the grain boundaries.This is attributed to the unique molecular structure of ILs with carbonyl and amine groups,allowing for strong interaction with perovskite precursors by forming C=O…Pb chelate bonds and N-H…I hydrogen bonds in both solution and film.This finding is generic in nature with extension to a wide range of IL-based perovskite optoelectronics.Lingfeng Chao Tingting Niu Hao Gu Yingguo Yang Qi Wei Yingdong Xia Wei Hui Shouwei Zuo Zhaohua Zhu Chengjie Pei Xiaodong Li Jing Zhang Junfeng Fang Guichuan Xing Hai Li Xiao Huang Xingyu Gao Chenxin Ran Lin Song Li Fu Yonghua Chen Wei Huang 2020Research2020,,1:2
2PVAm-PIP/PS composite membrane with high performance for CO2/N2 separation显示文摘Qiao Zhihua Wang Zhi Zhang Chenxin 2013AICHE J2013,59,1:1
3Microstructure evolution and growth mechanism of core-shell silicon-based nanowires by thermal evaporation of SiO显示文摘Core-shell structured SiC@SiO_(2)nanowires and Si@SiO_(2)nanowires were prepared on the surface of carbon/carbon(C/C)composites by a thermal evaporation method using SiO powders as the silicon source and Ni(NO3)2 as the catalyst.The average diameters of SiC@SiO_(2)nanowires and Si@SiO_(2)nanowires are about 145 nm,and the core-shell diameter ratios are about 0.41 and 0.53,respectively.The SiO_(2)shells of such two nanowires resulted from the reaction between SiO and CO and the reaction of SiO itself,respectively,based on the model analysis.The growth of these two nanowires conformed to the vapor-liquid-solid(VLS)mode.In this mode,CO played an important role in the growth of nanowires.There existed a critical partial pressure of CO(pC)determining the microstructure evolution of nanowires into whether SiC@SiO_(2)or Si@SiO_(2).The value of pC was calculated to be 4.01×10^(-15) Pa from the thermodynamic computation.Once the CO partial pressure in the system was greater than the pC,SiO tended to react with CO,causing the formation of SiC@SiO_(2)nanowires.However,the decomposition of SiO played a predominant role and the products mainly consisted of Si@SiO_(2)nanowires.This work may be helpful for the regulation of the growth process and the understanding of the growth mechanism of silicon-based nanowires.Bing LIU Jia SUN Lei ZHOU Pei ZHANG Chenxin YAN Qiangang FU 2022Journal of Advanced Ceramics2022,11,9:1
4ZnS Quantum Dots Derived a Reagentless Uric Acid Biosensor显示文摘Zhang Fenfen Lia Chenxin Lia Xiaohua 2006Talanta2006,68,4:1
5β- and α-Bi 2 O 3 nanoparticles synthesized via microwave-assisted method and their photocatalytic activity towards the degradation of rhodamine B显示文摘Qianqian Huang Suning Zhang Chenxin Cai Bo Zhou 2010Materials Letters2010,,:1
6Tbermo-responsive polymer- functionalized mesoporous carbon for controlled drug release显示文摘Zhu Shenmin Chen Chenxin Chen Zhixin Liu Xinye Li Yao Shi Yang Zhang Di 2011Materials Chemistry and Physics2011,126,12:1
7Time Domain Synchronous OFDM System for Optical Fiber Communications显示文摘A spectrum efficient OFDM scheme named Time Domain Synchronous-OFDM(TDS-OFDM)is introduced into coherent optical transmission system,in which the pseudo noise(PN)sequence is exploited as guard interval to realize frame synchronization,compensate the carrier frequency offset(CFO),and estimate and equalize channel simultaneously.Since there is no pilot signals or training symbols in TDS-OFDM,the proposed scheme can achieve higher spectral efficiency(SE)above 10%improvement comparing with CPOFDM.The proposed method is implemented and verified in a 28GBaud QPSK OFDM system and a 28GBaud 16QAM OFDM system.It is demonstrated that the proposed scheme shows high CFO estimation accuracy and synchronous accuracy.Under CFO and linewidth of laser source set as 100MHz and 100kHz respectively,BER of QPSK OFDM system is below 3.8e-3 at the optical signal-to-noise ratio(OSNR)of 13dB,and BER of 16QAM OFDM system is below 3.8e-3 at the OSNR of 20dB.Chenxin Jing Xianfeng Tang Xiaoguang Zhang Lixia Xi Wenbo Zhang 2019China Communications2019,16,9:1
8显示文摘Huang Qianqian Zhang Suning Cai Chenxin 2011Materi- als Letters2011,65,6:1
9fl-and a-Bi203 nanoparticles syntiesized via micro- wave-assisted method and their photoeatalytie activity towards the degradation of rhodamine B 显示文摘HUAN( Qianqian ZHANG Suning CAI Chenxin 2011Mater Lett2011,65,6:1
10Bandwidth enhancement of a microstrip - line - fed printed wide - slot antenna with a fractal -shaped slot显示文摘Chen Wenling Wang Guangming Zhang Chenxin 2009IEEE transactions on antennas and propagation2009,57,7:1
11Effectiveness of E-SBIRT intervention in community healthcare institution in China:study proposal for a randomised controlled trial显示文摘Background Many studies have demonstrated the effectiveness of Screening,Brief Intervention and Referral to Treatment(SBIRT)in addressing substance use problem.However,owing to the shortage of counsellors,it has not been widely used in China.With the development of smart medicine,we developed a web-based electronic SBIRT(E-SBIRT)program and explored the effectiveness of E-SBIRT in reducing substance use in China.Methods A randomised controlled trial will be conducted in primary healthcare institutions.Four primary healthcare institutions will be selected and randomly divided into an intervention group and a control group(each institution will recruit 60 participants,and in total,240 participants will be recruited).The control group will get a pamphlet of drug abuse prevention,and the intervention group will get the E-SBIRT intervention and the pamphlet.Both groups will receive baseline and follow-up assessment at 1 and 3 months after the intervention.The primary outcome is the change in scores on the Alcohol,Smoking and Substance Use Involvement Screening Test,and the secondary outcomes include changes in motivation,depression,anxiety,positive/negative emotion,self-esteem,addiction knowledge and addiction severity index.Conclusions If the‘E-SBIRT’program is found to be effective,it will be an accessible,affordable and widely implementable intervention to help participants at moderate risk of substance use to reduce their consumption.The potential benefit is to provide early intervention to high-risk patients in time and reduce the harmful consequences to individuals and society.Rao Fu Chenxin Yuan Wei Sun Wenzheng Wang Lei Zhang Jing Zhai Qun Guan Xiaojun Wu Jiang Long Min Zhao Jiang Du 2021General Psychiatry2021,34,5:1
12PVAm-PIP/ PS Composite Membrane with High Performance for COJN2 Separation 显示文摘Qiao Zhihua Wang Zhi Zhang Chenxin 2013AIChEJ2013,59,1:1
13Synthesis of graphene-supported hollow Pt–Ni nanocatalysts for highly active electrocatalysis toward the methanol oxidation reaction显示文摘Yaojuan Hu Ping Wu Hui Zhang Chenxin Cai 2012Electrochimica Acta2012,,:1
14Phase Morphology Evolution in AISI301 Austenite Stainless Steel under Different Cooling Rates显示文摘Quenching experiments were performed at different cooling rates under non-directional solidification by differential thermal analysis, and the morphologic variation of primary phase, phase transition temperature and hardness change at the same quenching temperature were investigated. The experimental results show that, with the gradual decrease of the cooling rate from 25 K/min, the morphology of ferrite starts to transform experiencing the dendrite, radial pattern, Widmanstatten-like and wire-net. Sample starts to present the Widmanstatten-like microstructure at 10 K/min which does not exist at higher or lower cooling rates, and this microstructure is detrimental to the mechanical property. Except 10 K/min, the hardness decreases with decreasing cooling rate.白亮 麻永林 XING Shuqing LIU Chenxin ZHANG Jieyu 2015Journal of Wuhan University of Technology(Materials Science)2015,30,2:0
15Structure and Combustion Characteristics of Methane/Air Premixed Flame under the Action of Wall显示文摘In order to obtain the combustion characteristics of the CH4/Air premixed flame under the action of the wall interaction,a study on the impact of the jet flame on the wall at different separation distances was carried out.The separation distance from the burner outlet to the lower surface of the wall is changed and the flame structure is obtained through experiments.The temperature,velocity and reaction rate are obtained through numerical simulation,and the law of flame characteristics change is obtained through analysis.The results show that as the separation distance increases,the premixing cone inside the flame gradually changes from a horn shape to a complete cone shape and the length of the premixing cone profile increases.Also,the peak temperature and velocity of the mixture in the axial direction gradually increase,and the temperature and velocity in the radial direction first increase and then decrease.The temperature gradient and velocity reach the maximum when the separation distance is 11 mm.The peaks of reactants(CH_(4))net reaction rate intermediate products(CO)and products(CO_(2),H_(2)O)on the axis and the axial distance corresponding to the peaks increase accordingly.The chemical reaction rate near the wall also gradually decreases with the increase of the separation distance.Feiyang Li Jianfeng Pan Chenxin Zhang Evans K.Quaye Xia Shao 2021Energy Engineering2021,118,4:0
16Experimental Investigation of Flame Structure and Combustion Limit During Premixed Methane/Air Jet Flame and Sidewall Interaction显示文摘The effects of inlet gas parameters and sloping sidewall angle on the flame structure and combustion limit with and without sidewall were experimentally investigated.Flame height and impact angle were obtained by chemiluminescence intensity analysis of CH*distribution.First,the combustion characteristics of flame with and without sidewall at different equivalence ratios were explored;then,the influence of Reynolds number and inlet gas temperature on flame structure and combustion limit of v-shaped flame with sidewall were analyzed,and the results with sidewall were compared with those without sidewall.Finally,the variation trend of flame parameters with different sloping sidewall angles was analyzed.The experimental results show that the existence of sidewall makes flame shape change from“M-shaped”to“inverted N-shaped”,and conical shape to trapezoidal shape.The inhibition effect of sidewall on flame stretching downstream is strengthened with the increase in Reynolds number;but as the temperature of the inlet gas increases,the inhibitory effect is obviously weakened.When sloping sidewall angle decreases from 90°to 55°at 5°intervals,flame height and impact angle of v-shaped flame reach the extreme value whenβ=80°.Compared with the case without sidewall,the range of v-shaped flame with sidewall has no obvious trend of broadening or shrinking when inlet gas temperature is increased;however,as sloping sidewall angle decreases,the range of the v-shaped flame shrinks obviously and flammability limit increases significantly.Ying Chen Jianfeng Pan Qingbo Lu Yu Wang Chenxin Zhang 2021Energy Engineering2021,118,1:0
17Individual blastomeres of 4-and 8-cell embryos have ability to develop into a full organism in mouse显示文摘Following fertilization in mammals,the zygote initiates the developmental program,which has a transient capacity to generate cell types of both embryonic and extraembryonic lineages,which is defined as totipotency (Condic,2014),In mice, only zygotes and blastomeres of 2-cell stage embryos are considered totipotent,since they have the ability to develop into a full organism without the requirement of carrier cells (Tarkowski, 1959;Ishiuchi and Torres-Padilla,2013).However,the blastomeres of the 4-cell or later stage embryos quickly lose this ability (Rossant,1976).Xinxin Zhang Tianda Li Linlin Zhang Liyuan Jiang Tongtong Cui Xuewei Yuan Chenxin Wang Zhonghua Liu Ying Zhang Wei Li Qi Zhou 2018Journal of Genetics and Genomics2018,45,12:0
18Clustering compression-based computation-efficient calibration method for digital twin modeling of HVAC system显示文摘Digital twin is regarded as the next-generation technology for the effective operation of heating,ventilation and air conditioning(HVAC)systems.It is essential to calibrate the digital twin models to match them closely with real physical systems.Conventional real-time calibration methods cannot satisfy such requirements since the computation loads are beyond acceptable tolerances.To address this challenge,this study proposes a clustering compression-based method to enhance the computation efficiency of digital twin model calibration for HVAC systems.This method utilizes clustering algorithms to remove redundant data for achieving data compression.Moreover,a hierarchical multi-stage heuristic model calibration strategy is developed to accelerate the calibration of similar component models.Its basic idea is that once a component model is calibrated by heuristic methods,its optimal solution is utilized to narrow the ranges of parameter probability distributions of similar components.By doing so,the calibration process can be guided,so that fewer iterations would be used.The performance of the proposed method is evaluated using the operational data from an HVAC system in an industrial building.Results show that the proposed clustering compression-based method can reduce computation loads by 97%,compared to the conventional calibration method.And the proposed hierarchical heuristic model calibration strategy is capable of accelerating the calibration process after clustering and saves 14.6%of the time costs.Jie Lu Xiangning Tian Chenxin Feng Chaobo Zhang Yang Zhao Yiwen Zhang Zihao Wang 2023Building Simulation2023,16,6:0
19Molecular oxygen-mediated selective hydroxyalkylation and alkylation of quinoxalin-2(1H)-ones with alkylboronic acids显示文摘Herein, an efficient molecular oxygen-mediated method for the selective hydroxyalkylation and alkylation of quinoxalin-2(1 H)-ones with alkylboronic acids under transition-metal free conditions has been developed. This strategy demonstrates a broad scope of quinoxalin-2(1 H)-ones and alkylboronic acids, giving3-hydroxyalkylquinoxalin-2(1 H)-ones and 3-alkylquinoxalin-2(1 H)-ones in moderate-to-good yield. Control experiments reveal that a radical pathway is involved.Hongdou Zhang Jun Xu Yani Ouyang Xiaoguang Yue Chenxin Zhou Zhigang Ni Wanmei Li 2022Chinese Chemical Letters2022,33,4:0
20PRMT6 promotes tumorigenicity and cisplatin response of lung cancer through triggering 6PGD/ENO1 mediated cell metabolism显示文摘Metabolic reprogramming is a hallmark of cancer,including lung cancer.However,the exact underlying mechanism and therapeutic potential are largely unknown.Here we report that protein arginine methyltransferase 6(PRMT6)is highly expressed in lung cancer and is required for cell metabolism,tumorigenicity,and cisplatin response of lung cancer.PRMT6 regulated the oxidative pentose phosphate pathway(PPP)flux and glycolysis pathway in human lung cancer by increasing the activity of 6-phosphogluconate dehydrogenase(6PGD)and a-enolase(ENO1).Furthermore,PRMT6 methylated R324 of 6PGD to enhancing its activity;while methylation at R9 and R372 of ENO1 promotes formation of active ENO1 dimers and 2-phosphoglycerate(2-PG)binding to ENO1,respectively.Lastly,targeting PRMT6 blocked the oxidative PPP flux,glycolysis pathway,and tumor growth,as well as enhanced the antitumor effects of cisplatin in lung cancer.Together,this study demonstrates that PRMT6 acts as a posttranslational modification(PTM)regulator of glucose metabolism,which leads to the pathogenesis of lung cancer.It was proven that the PRMT6-6PGD/ENO1 regulatory axis is an important determinant of carcinogenesis and may become a promising cancer therapeutic strategy.Mingming Sun Leilei Li Yujia Niu Yingzhi Wang Qi Yan Fei Xie Yaya Qiao Jiaqi Song Huanran Sun Zhen Li Sizhen Lai Hongkai Chang Han Zhang Jiyan Wang Chenxin Yang Huifang Zhao Junzhen Tan Yanping Li Shuangping Liu Bin Lu Min Liu Guangyao Kong Yujun Zhao Chunze Zhang Shu-Hai Lin Cheng Luo Shuai Zhang Changliang Shan 2023Acta Pharmaceutica Sinica B2023,13,1:0
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