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| 1 | Dark matter direct search sensitivity of the PandaX-4T experiment显示文摘The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2. | HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，3： | 6 |
| 2 | Bimetallic nano-mushrooms with DNA-mediated interior nanogaps for high-efficiency SERS signal amplification显示文摘有为散布的提高表面的拉曼(重量的单位) 分析的 ultrasensitive 的明确的 nanogaps 抓住伟人诺言的一致包含银的金属 nanostructures。不过,有强壮、稳定的重量的单位的如此的 nanostructures 的直接合成表明极其质问的遗体。这里,我们与内部 nanogaps 为金银的 nano 蘑菇的直接合成报导一条调停 DNA 的途径。这些 nano 蘑菇的重量的单位紧张极其依赖于在金头和银帽子之间的 nanogap 的区域。我们发现 nanogaps 的形成由控制在金 nanoparticles 上标记搁浅单人赛的 DNA (ssDNA ) 的 6-carboxy-X-rhodamine (ROX ) 的表面密度是细微地悦耳的。我们与 1.0 的一个高重量的单位信号改进因素在高产量获得了 nano 蘑菇我们作为一项 retrofit 措施在 CHS 在用阶段变化材料(脉冲编码调制) 的热存储的采纳以后。结果显示那与融化 23 的温度使用脉冲编码调制 ? 訄吗?? | Jianlei Shen Jing Su Juan Yan Bin Zhao Dongfang Wang Siyi Wang Kun Li Mengmeng Liu Yao He Sanjay Mathur Chunhai Fan Shiping Song | 2015 | Nano Research2015，8，3： | 4 |
| 3 | Settling behavior of spherical particles in vertical annulus:Experimental study and model development显示文摘Coiled tubing(CT)drilling technology offers significant advantages in terms of cost and efficiency for exploitations of unconventional oil and gas resources.However,the development of CT drilling technol-ogy is restricted by cuttings accumulation in the wellbore due to non-rotation of the drill string and limited circulating capacity.Cuttings cleaning becomes more difficult with the wall resistance of pipe-wellbore annulus on the cutting transport.Accurate description of particle transport process in the pipe-wellbore annulus is,therefore,important for improving the wellbore cleanliness.In this study,high-speed cam-era is used to record and analyze the settling process of particles in the transparent annulus filled with power-law fluids.A total of 540 tests were carried out,involving dimensionless diameters of 0.10-0.95 and particle Reynolds Numbers of 0.01-12.97,revealing the effect of the dimensionless diameter and particle Reynolds number on the annulus wall effect,and the wall factor model with an average relative error of2.75%was established.In addition,a dimensionless parameter,Archimedes number,independent of the settling velocity,was introduced to establish an explicit model of the settling velocity of spherical particles in the vertical annulus,with the average relative error of 7.89%.Finally,a calculation example was provided to show how to use the explicit model of settling velocity in annulus.The results of this study are expected to provide guidance for field engineers to improve the wellbore cleanliness of coiled tubing drilling. | Zhaopeng Zhu Mengmeng Zhou Xianzhi Song Shuo Zhu Gensheng Li Zhengming Xu Xuezhe Yao Buwen Yu | 2022 | Particuology2022，20，9： | 2 |
| 4 | Adverse Effect of Nonalcoholic Fatty Liver Disease on the Therapeutic Response in Patients with Chronic Hepatitis B显示文摘Background and Aims:The impact of nonalcoholic fatty liver disease(NAFLD)on the treatment outcome of chronic hepatitis B(CHB)is undefined and deserves an in-depth investigation.Methods:Histologically-proven CHB receiving first-line antiviral regimens as initial therapy was enrolled and grouped by the concurrence of NAFLD,and followed up at six monthly intervals.Therapeutic response related data were recorded and compared at multiple time points.Kaplan-Meier and Cox regression analyses were utilized to estimate the impact of NAFLD on complete virological response(CVR).Results:We enrolled 267 patients(CHB:164;CHB with NAFLD:103)with comparable follow-up durations.They were also comparable in baseline HBV DNA levels and HBeAg positivity.Patients with concomitant NAFLD showed less significant decline in HBV DNA,qHBsAg,pgRNA,and liver enzyme levels over time;moreover,their cumulative incidences of CVR were significantly lower and that of low-level viremia(LLV)were significantly higher at 6,12,18,24 months.First CVR of CHB was delayed with the presence NAFLD(11.0 vs.7.0 months,p<0.001)and further prolonged with higher grade of liver steatosis(Grade 2–3 vs.1:13.0 vs.9.0 months).On multivariate analysis,HBeAg positivity(HR:0.650,p=0.036),grade of steatosis(G2[HR:0.447,p=0.004];G3[HR:0.085,p=0.002])and HBV DNA(log10 IU/mL)(HR:0.687,p<0.001)were significantly associated with delayed CVR,whereas grade of necroinflammation(HR:1.758,p<0.001)accelerated the CVR.Conclusions:In CHB patients receiving initial antiviral therapy,NAFLD was associated with higher levels of HBV DNA,pgRNA,and liver enzymes,and higher incidence of LLV and delayed CVR. | Siyu Zhang Xiaoxiao Zhang Huiming Jin Yao Dou Lu Li Xiwei Yuan Chen Dong Mengmeng Hou Yue-min Nan Jia Shang | 2023 | Journal of Clinical and Translational Hepatology2023，11，1： | 1 |
| 5 | Hierarchical porous nitrogen,oxygen,and phosphorus ternary doped hollow biomass carbon spheres for high-speed and long-life potassium storage显示文摘Limited lithium resources have promoted the exploration of new battery technologies.Among them,potassium-ion batteries are considered as promising alternatives.At present,commercial graphite and other carbon-based materials have shown good prospects as anodes for potassium-ion batteries.However,the volume expansion and structural collapse caused by periodic K+insertion/extraction have severely restricted further development and application of potassium-ion batteries.A hollow biomass carbon ball(NOP-PB)ternarily doped with N,O,and P was synthesized and used as the negative electrode of a potassium-ion battery.X-ray photoelectron spectroscopy,Fourier‐transform infrared spectroscopy,and transmission electron microscopy confirmed that the hollow biomass carbon spheres were successfully doped with N,O,and P.Further analysis proved that N,O,and P ternary doping expands the interlayer distance of the graphite surface and introduces more defect sites.DFT calculations simultaneously proved that the K adsorption energy of the doped structure is greatly improved.The solid hollow hierarchical porous structure buffers the volume expansion of the potassium insertion process,maintains the original structure after a long cycle and promotes the transfer of potassium ions and electrons.Therefore,the NOP‐PB negative electrode shows extremely enhanced electrochemical performance,including high specific capacity,excellent long‐term stability,and good rate stability. | Mengmeng Yang Qingquan Kong Wei Feng Weitang Yao Qingyuan Wang | 2022 | Carbon Energy2022，4，1： | 1 |
| 6 | A robust polyacrylic acid/chitosan cryogel for rapid hemostasis显示文摘Currently,it is a challenge to develop hemostatic materials with high water absorption capacity and anti-fatigue properties for quickly preventing massive hemorrhage from arteries and visceral organs.A series of polyacrylic acid/chitosan(PAA/CS)cryogels were prepared by a cryostructurization technique to improve mechanical performance and hemostatic efficiency of chitosan(CS).In this system,the chemically cross-linked PAA network was used as a framework to improve water absorption behaviors and mechanical strength.The CS network was co-blended by hydrogen bonding and electrostatic interactions,both of which synergistically promoted hemostasis.These cryogels had high porosity(>94%),rapid water absorption rate(<3 s),high blood absorption capacity(>2000%),outstanding mechanical strength,and fatigue resistance.Moreover,the results of cytotoxicity and hemolysis demonstrated that the cryogels had good biocompatibility.Notably,the PAA/CS cryogels exhibited superior whole blood coagulation ability and red blood cell and platelet adhesion ability compared to those of commercial hemostatic dressing(gauze,gelatin sponges,and CS sponges).Based on these results,mouse femoral artery hemorrhage models and liver hemorrhage models were prepared to investigate the hemostatic ability of the prepared PAA/CS cryogels.Results suggested that the hemostatic ability of PAA5/CS cryogels was superior to that of commercial hemostatic materials.Therefore,the PAA/CS cryogels showed potential application in preventing massive hemorrhage from arteries and visceral organs. | SHI MingYue JIANG LiJie YU ChaoJie DONG XiaoRu YU QingYu YAO MengMeng HE ShaoShuai YUE ZhiWei YAO FangLian ZHANG Hong SUN Hong LI JunJie | 2022 | Science China(Technological Sciences)2022，65，5： | 1 |
| 7 | Propagation properties of foreshock cavitons: Cluster observations显示文摘Foreshock cavitons are transient phenomena observed in the terrestrial foreshock region.They are characterized by a simultaneous depression of magnetic field magnitude and plasma density,which are bounded with enhancements of these two parameters and surrounded by ultralow frequency(ULF)waves.Previous studies focused on the interplanetary magnetic field(IMF)conditions,solar wind(SW)conditions,and the growth of the foreshock waves related to the generation of foreshock cavitons.Previously,a multipoint spacecraft analysis method using Cluster data was applied to analyze only two foreshock cavitons,and this method did not consider uncertainties.In this study,multipoint spacecraft analysis methods,including the timing method,the minimum directional derivative(MDD)method,and the spatiotemporal difference(STD)method are applied to determine the velocity in both spacecraft and solar wind frames.The propagation properties show good agreement with previous results from simulations and observations that most cavitons move sunward in the solar wind frame,with the velocities larger than the Alfvén speed.The propagation properties of foreshock cavitons support the formation mechanism of cavitons in previous simulations,which suggested that cavitons are formed due to the nonlinear evolution of compressive ULF waves.We find that there is clear decreasing trend between the size of cavitons and their velocity in the solar wind frame.In addition,the timing method considering errors has been applied to study the evolution properties by comparing the velocities with errors of the leading and trailing edges,and we identify three stable cavitons and one contracting caviton,which has not been studied before.Most cavitons should remain stable when they travel toward the Earth’s bow shock.The relationship between the size of foreshock cavitons and their distance from the bow shock is also discussed. | WANG MengMeng YAO ShuTao SHI QuanQi ZHANG Hui TIAN AnMin DEGELING Alexander William ZHANG Shuai GUO RuiLong SUN WeiJie LIU Ji BAI ShiChen SHEN XiaoChen ZHU XiaoQiong FU SuiYan PU ZuYin | 2020 | Science China(Technological Sciences)2020，63，1： | 1 |
| 8 | Tyramine-enhanced zwitterion hyaluronan hydrogel coating for anti-fouling and anti-thrombosis显示文摘Zwitterions have aroused much interest to endow implantable medical devices with anti-fouling and anti-thrombosis performance,due to their ability to form a hydrated layer that can provide a good barrier against protein and cell adhesion. Herein,tyramine modified sulfobetaine-derived sodium hyaluronan(HST) hydrogel coating was fabricated, in which hyaluronan(HA)was used as polysaccharide skeleton to graft zwitterionic sulfobetaine, and tyramine was introduced as crosslinker to construct both the network of hydrogel and a strong covalent bond between coating and substrate. Hydrogel coating was prepared by spin coating or painting HST prepolymer solution under ultraviolet light irradiation. The obtained HST hydrogel coating shows good stability. Moreover, in addition to its outstanding anti-fouling performance and good biocompatibility, it can effectively prevent thrombosis in blood circulation ex vivo. This work offers a universal strategy to prepare a high-performance anti-fouling and antithrombosis coating, which is expected to promote the development of functional coatings for biomedical materials. | GUO ZhiCheng YAO MengMeng SUN Hong SHI MingYue DONG XiaoRu HE ShaoShuai GUO BingYan YAO FangLian ZHANG Hong LI JunJie | 2022 | Science China(Technological Sciences)2022，65，8： | 1 |
| 9 | Pacific decadal oscillation impact on East China precipitation and its imprint in new geological documents显示文摘This paper briefly introduces the history of the study of the Pacific decadal oscillation(PDO) and explores the relationship between the PDO and sediment grain size from two typical sediment cores from the lower Changjiang(Yangtze River) and Huanghe(Yellow River) estuaries. It is found that the median grain sizes of both cores exhibit relatively high correlation with the PDO. This is because the PDO causes interdecadal variability of precipitation in the East Asia Monsoon region, thus changing the hydrodynamics in both the Changjiang and Huanghe catchments, eventually resulting in variation of sediment grain size. Our analysis also revealed that during different phases of the PDO, the sediment grain size of the Changjiang and Huanghe estuaries showed different variations in cold and warm PDO phases. This is related to movement of the precipitation center driven by the shift in different PDO phases. Moreover, we compared more high resolution geological proxies with the PDO, including stalagmites and tree rings, in East China over the past century. The results indicate that variations of studied geological proxies are generally well correlated with the PDO but have some differences. Finally, longer variations of sediment grain sizes in the Changjiang and Huanghe estuaries are compared with a reconstructed PDO over the last 200 years;sediment grain sizes were still correlated with the PDO, implying that sediment grain size may be used as a new proxy for studying the long-term behavior of the PDO. This result supports previous knowledge of the PDO impact on East China climate evolution and offers a new proxy for further PDO study. Our study will improve paleoenvironment reconstruction in East China on a decadal time scale and benefit future climatic predictions. | Jiahui YAO Linxiang XIAO Mengmeng GOU Chao LI Ergang LIAN Shouye YANG | 2018 | Science China Earth Sciences2018，61，4： | 1 |
| 10 | Mechanistic studies of initial deposition of fine adhesive particles on a fiber using discrete-element methods显示文摘 | YANG Mengmeng LI Shuiqing YAO Qiang | 2013 | Powder Technology2013，248，2： | 1 |
| 11 | Synthesis and electromagnetic wave absorption performances of a novel(Mo_(0.25)Cr_(0.25)Ti_(0.25)V_(0.25))_(3)AlC_(2)high-entropy MAX phase显示文摘Herein,a novel kind of high-entropy MAX phases,(Mo_(0.25)Cr_(0.25)Ti_(0.25)V_(0.25))_(3)AlC_(2)powders were success-fully synthesized by a newly proposed two-step solid state reaction process.The oxidation experiments demonstrate that the oxidation products of Al_(2)Mo_(3)O_(12) and rutile TiO 2 are formed at about 600 and 800℃,respectively.Besides,the dielectric and electromagnetic(EM)wave absorption properties of(Mo_(0.25)Cr_(0.25)Ti_(0.25)V_(0.25))_(3)AlC_(2)powders and those after oxidation at different temperatures were also exam-ined.The results show that the as-synthesized(Mo_(0.25)Cr_(0.25)Ti_(0.25)V_(0.25))_(3)AlC_(2)powders possess excellent EM wave absorption performances with the minimum reflection loss(RL)of-45.80 dB(at 1.7 mm thickness)and the maximum effective absorption bandwidth(E AB)of 3.6 GHz(at 1.5 mm thickness).After oxidation at 400-800℃,due to the coupling of conductivity loss and polarization loss,(Mo_(0.25)Cr_(0.25)Ti_(0.25)V_(0.25))_(3)AlC_(2)powders can retain good EM wave absorption properties in a certain frequency range.In this paper,the effects of oxidation on EM wave absorption properties of high-entropy MAX phases were systematically investigated for the first time.This work manifests that high-entropy MAX phases are promising EM wave absorbing candidates and can maintain good EM wave absorption performances after oxidation. | Linjing Qiao Jianqiang Bi Guandong Liang Chen Liu Zhuangzhuang Yin Yao Yang Hongyi Wang Shaoyin Wang Mengmeng Shang Weili Wang | 2023 | Journal of Materials Science & Technology2023，，6： | 1 |
| 12 | High-throughput screening of SARS-CoV-2 main and papain-like protease inhibitors显示文摘The global COVID-19 coronavirus pandemic has infected over 109 million people,leading to over 2 million deaths up to date and still lacking of effective drugs for patient treatment.Here,we screened about 1.8 million small molecules against the main protease(M^(pro))and papain like protease(PL^(pro)),two major proteases in severe acute respiratory syndrome-coronavirus 2 genome,and identified 1851M^(pro)inhibitors and 205 PL^(pro)inhibitors with low nmol/l activity of the best hits.Among these inhibitors,eight small molecules showed dual inhibition effects on both M^(pro)and PL^(pro),exhibiting potential as better candidates for COVID-19 treatment.The best inhibitors of each protease were tested in antiviral assay,with over 40%of M^(pro)inhibitors and over 20%of PL^(pro)inhibitors showing high potency in viral inhibition with low cytotoxicity.The X-ray crystal structure of SARS-CoV-2 M^(pro)in complex with its potent inhibitor 4a was determined at 1.8Åresolution.Together with docking assays,our results provide a comprehensive resource for future research on anti-SARS-CoV-2 drug development. | Yi Zang Mingbo Su Qingxing Wang Xi Cheng Wenru Zhang Yao Zhao Tong Chen Yingyan Jiang Qiang Shen Juan Du Qiuxiang Tan Peipei Wang Lixin Gao Zhenming Jin Mengmeng Zhang Cong Li Ya Zhu Bo Feng Bixi Tang Han Xie Ming-Wei Wang Mingyue Zheng Xiaoyan Pan Haitao Yang Yechun Xu Beili Wu Leike Zhang Zihe Rao Xiuna Yang Hualiang Jiang Gengfu Xiao Qiang Zhao Jia Li | 2023 | Protein & Cell2023，14，1： | 0 |
| 13 | Field-effect at electrical contacts to two-dimensional materials显示文摘The inferior electrical contact to two-dimensional(2D)materials is a critical challenge for their application in post-silicon very large-scale integrated circuits.Electrical contacts were generally related to their resistive effect,quantified as contact resistance.With a systematic investigation,this work demonstrates a capacitive metal-insulator-semiconductor(MIS)field-effect at the electrical contacts to 2D materials:The field-effect depletes or accumulates charge carriers,redistributes the voltage potential,and gives rise to abnormal current saturation and nonlinearity.On one hand,the current saturation hinders the devices’driving ability,which can be eliminated with carefully engineered contact configurations.On the other hand,by introducing the nonlinearity to monolithic analog artificial neural network circuits,the circuits’perception ability can be significantly enhanced,as evidenced using a coronavirus disease 2019(COVID-19)critical illness prediction model.This work provides a comprehension of the field-effect at the electrical contacts to 2D materials,which is fundamental to the design,simulation,and fabrication of electronics based on 2D materials. | Yao Guo Yan Sun Alvin Tang Ching-Hua Wang Yanqing Zhao Mengmeng Bai Shuting Xu Zheqi Xu Tao Tang Sheng Wang Chenguang Qiu Kang Xu Xubiao Peng Junfeng Han Eric Pop Yang Chai | 2021 | Nano Research2021，14，12： | 0 |
| 14 | 单细胞技术揭示肝癌免疫图谱与动态特征显示文摘文章简介肝细胞癌是世界范围内死亡率排名第三的癌症,其中中国的肝癌发病率居世界之先。肿瘤存在多种免疫逃逸机制,提出了研究肿瘤微环境中不同免疫细胞状态的重要性。而不同类型的单细胞测序技术则是研究不同类型免疫细胞的状态和动态的有力手段。本研究结合了两种单细胞测序技术,充分发挥不同数据类型的优势,获得高分辨率的肝癌免疫图谱。肿瘤中的树突状细胞是重要的抗原呈递细胞,除传统的树突状细胞外。 | Qiming Zhang Yao He Nan Luo Shashank J.Patel Yanjie Han Ranran Gao Madhura Modak Sebastian Carotta Christian Haslinger David Kind Gregory W.Peet Guojie Zhong Shuangjia Lu Weihua Zhu Yilei Mao Mengmeng Xiao Michael Bergmann Xueda Hu Sid P.Kerkar Anne B.Vogt Stefan Pflanz Kang Liu 彭吉润 任仙文 张泽民 | 2020 | 科学新闻2020，，2： | 0 |
| 15 | Synthesis and Characterization of Dinuclear Aluminum Complexes Bearing N,N-Dialkylaniline-amido Ligands and Its Catalytic Properties for Lactone Polymerization显示文摘 | HAN Yancheng ZHU Guangyun ZHANG Mengmeng WANG Shuai YAO Wei GAO Aihong LU Ping | 2014 | Chemical Research in Chinese Universities2014，30，5： | 0 |
| 16 | Prenatal Diagnosis of Dystrophinopathy and Cytogenetic Analysis in 303 Chinese Families显示文摘Objective:This study was to supply information of the Duchenne muscular dystrophy(DMD)mutational spectrum in 303 Chinese families and further offer 5-year clinical experience of DMD/Becker muscular dystrophy genetic counseling and prenatal diagnosis.Methods:In this retrospective cohort study,three hundred and five pregnancies in 303 pregnant women who has a birth history of DMD/Becker muscular dystrophy patients underwent prenatal diagnosis using multiplex ligation-dependent probe amplification followed by Sanger sequencing between January 2014 and December 2018 at Peking Union Medical College Hospital.The mean age of pregnant women was(33.0±4.1)years old.Karyotype analysis was performed to exclude fetal abnormal karyotype.Results:The detection rate of DMD gene mutation in 303 probands was(296/303)97.7%with seven families having a negative genetic diagnosis.The mutational spectrum comprised of large arrangements in 288/303(95.0%)and small mutations in 8/303(2.6%).Carrier testing was performed among 204 pregnant women among whom,108 mothers had the same mutation as family proband.Of the 305 pregnancies underwent prenatal diagnosis,55 of 173 male fetuses were affected.We also performed karyotype analysis and found three abnormal karyotypes of trisomy 21.We even found a fetus with DMD gene mutation and trisomy 21 in a same fetus by further analysis.We also identified two times of germline mosaicism.Conclusion:This study demonstrated the distribution and mutation profile of 303 probands and 305 fetuses.Furthermore,considering the possbility of maternl germilne mosaicism,prenatal diagnosis should be suggested to mothers with a proband whether they carry the causative mutation in their blood or not. | Mengmeng Li Na Hao Fengxia Yao Weimin Zhang Jing Zhou Li Tan Zhengqing Qiu Juntao Liu | 2021 | Maternal-Fetal Medicine2021，3，4： | 0 |
| 17 | Profiling Drug-Protein Interactions by Micro Column Affinity Purification Combined with Label Free Quantification Proteomics显示文摘of main observation and conclusion We developed a method for comprehensively profiling drug-protein interactions using micro-column affinity purification(AP)combined with label-free quantitative(LFQ)proteomics as well as the statistical and bioinformatics analysis.FK506 was used as the experimental model for proof of concept.The true interacting proteins were distinguished from the background proteins by their fold changes of FLQ intensities combined with p-values.Totally 116 FK506 interacting proteins including 5 known target proteins were identified.The method was validated by using the LFQ intensity of the endogenous known drug targets together with statistical analysis.We demonstrated that the micro-column-based affinity purification in combination with LFQ proteomics provides a highly reproducible and robust approach for profiling drug-protein interactions. | Li Gong Yao Xu Guizhen Liu Mengmeng Zheng Xuepei Zhang Ying Hang Jingwu Kang | 2020 | Chinese Journal of Chemistry2020，38，12： | 0 |
| 18 | Shape-dependence in seeded-growth of Pd-Cu solid solution from Pd nanostructure towards methanol oxidation electrocatalyst显示文摘Ultrathin Pd nanosheets(NSs)have great advantages in catalysis due to their large specific surface area and high percentage of under-coordinated atoms.However,the electrochemical performance still can be improved via composition-controllable growth of their solid solution.Herein,seeded alloying strategy was proposed to synthesize Pd-Cu solid solution from Pd NSs and Pd-Cu nanostructures with tunable molar ratios obtained by changing the amount of Cu precursor.As compared to the pristine Pd NSs,the Pd-Cu solid solution shows significantly enhanced methanol oxidation reaction(MOR)performance over those of Pd NSs and homemade Pd/C as the incorporation of Cu weakens the adsorption of CO intermediate on Pd in the MOR process.The choice of template is pivotal to the growth,as a shape-dependent behavior could be identified in the alloying of Cu with Pd nanosheets enclosed by{111}and{100}facets,Pd nanocubes enclosed by{100}facet,and Pd nano-tetrahedrons enclosed by{111}facet.The Pd-Cu solid solution with tunable composition can only be obtained from Pd NSs and the shape-dependent alloying process is mainly determined by the diffusion barrier and the minimum diffusion depth of the different facets. | Lianxi Si Hui Li Yu Zhang Donghao Zhang Xiaowei An Mengmeng Yao Yuanyuan Shao Jesse Zhu Shi Hu | 2023 | Nano Research2023，16，7： | 0 |
| 19 | Multiple description video coding using correlation optimized temporal sampling显示文摘We propose a novel multiple description video coding scheme based on pre-and post-processing of video sequences without modifying the actual coding process itself,thus making it compatible with the current standard coding.In pre-processing,adaptive modes of temporal sampling are employed to regulate the motion change between frames before performing odd/even frame splitting,which facilitates good estimation of lost frames in post-processing after side decoding.Significantly,given a central distortion,rate-distortion optimization with Lagrangian formulation is applied in pre-processing to achieve a good tradeoff between bit rate and side distortion.Furthermore,to simplify Lagrangian optimization,a new optimization criterion is proposed based on the correlation of intra-and inter-descriptions.In the experiments,the proposed scheme achieves better performance compared with other tested multiple description coding(MDC)schemes in both an on-off MDC environment and lossy packet networks. | BAI HuiHui ZHANG MengMeng WANG AnHong ZHAO Yao | 2014 | Science China(Information Sciences)2014，57，5： | 0 |
| 20 | A new method for quantifying mitochondrial axonal transport显示文摘线粒体的 Axonal 运输为 neuronal 幸存和功能是批评的。自动地确定并且在质问的一个大数量遗体分析 mitochondrial 运动。这里,我们和一个最新发达的分析包裹用 microfluidic-chamber-cultured 神经原为成像和确定的 axonal mitochondrial 运输报导一个有效方法命名 MitoQuant。这个工具箱为为分析线粒体的动态运动模式在实时 neuronal 轴突和一个短暂速度的分析节目内追踪 mitochondrial 运动由一个自动化节目组成。用这个方法,我们在 vivo 在有教养的哺乳动物的神经原并且在果蝇的马达神经原轴突检验了 axonal mitochondrial 运动。在影响线粒体的 3 个不同范例(温度变化,药处理和基因操作) ,我们证明了这个新方法为在 mitochondrial 运动检测变化高度有效、敏感。方法显著地提高了我们的能力到份量上分析 axonal mitochondrial 运动并且允许我们在没被传统的 kymographic 分析检测的 axonal mitochondrial 运输检测动态变化。 | Mengmeng Chen Yang Li Mengxue Yang Xiaoping Chen Yemeng Chen Fan Yang Sheng Lu Shengyu Yao Timothy Zhou Jianghong Liu Li Zhu Sidan Du Jane Y. Wu | 2016 | Protein & Cell2016，7，11： | 0 |
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