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| 1 | Gear geometry of cycloid drives显示文摘According to differential geometry and gear geometry, the equation of meshing for small teeth difference planetary gearing and a universal equation of conjugated profile are established based on cylindrical pin tooth and given motion. The correct meshing condition, contact line, contact ratio, calculating method for pin tooth's maximum contact point are developed. Investigation on the theory of conjugated meshing is carried out when the tooth difference numbers between pin wheel and cycloidal gear are 1, 2, 3 and ?1, respectively. A general method called enveloping method to generate hypocycloid and epicycloid is put forward. The correct meshing condition for cycloid pin wheel gearing is provided, and the contact line and the contact ratio are also discussed. | CHEN BingKui FANG TingTing LI ChaoYang WANG ShuYan | 2008 | Science China(Technological Sciences)2008，51，5： | 18 |
| 2 | Multifunctional core/satellite polydopamine@Nd^3+- sensitized upconversion nanocomposite: A single 808 nm near-infrared light-triggered theranostic platform for in vivo imaging-guided photothermal therapy显示文摘重要变细并且过热,在水里由刺激乐队(980 nm ) 的吸收引起了,是主要障碍在在里面做 lanthanide 的 upconversion nanoparticles (UCNP ) 的 vivo 申请。因此,有 808 nm 刺激的适当地组织的 Nd 3+-doped UCNP 能是一种有希望的选择。此处,我们开发了 core-shell-shell 作为成像代理人组织了 Nd 3+-sensitized UCNP,并且装饰了他们到 polydopamine (PDA ) 的表面上构造新奇多功能的核心 / 卫星 nanotheranostic (PDA@UCNPs ) 为在 vivo 成像指导 photothermal 治疗使用单身者 808 nm 激光照耀。core-shell-shell 组织了设计启用的突出的 upconversion 光性质和强壮的 X 光检查变细,从而为优秀 upconversion luminescence/computed 断层摄影术使 nanocomposites 成为潜在的候选人双形式的成像。另外, PDA 核心不仅提供高 photothermal 变换效率和突出的 antitumor 效果,而且由于它的自然特征赋予站台以柔韧的 biocompatibility。因此,这多功能的 nanocomposite 能是在未来 oncotherapy 的有希望的 theranostic,与高治疗学的有效性但是低副作用。这研究将刺激在设计 bio-application-compatible 使多功能的 nanocomposites 感兴趣,特别为在 vivo 的癌症诊断和治疗。 | Xing Ding Jianhua Liu Dapeng Liu Junqi Li Fan Wang Leijiao Li Yinghui Wang Shuyan Song Hongjie Zhang | 2017 | Nano Research2017，10，10： | 16 |
| 3 | Adjunctive treatment with high frequency repetitive transcranial magnetic stimulation for the behavioral and psychological symptoms of patients with Alzheimer's disease: a randomized, double-blind, sham-controlled study显示文摘 | Yue WU Wenwei XU Xiaowei LIU Qing XU Li TANG Shuyan WU | 2015 | 上海精神医学2015，27，5： | 15 |
| 4 | Spatial distribution, seasonal variation and regionalization of PM_(2.5) concentrations in China显示文摘In order to provide scientific support to policy makers in the regulation of PM2.5 pollution in China, it is important to accurately assess the current status, spatiotemporal characteristics and regionalization data for this air pollutant. An analysis of the pollution status of PM2.5 was conducted using daily averaged mass concentration data recorded in 74 cities in 2013 and 161 cities in 2014. The rotated empirical orthogonal function(REOF) method was applied to analyze this data. Results showed that the average annual PM2.5 concentration in urban areas of China is 62.2±21.5 ?g/m3, and that the distribution is spatially heterogeneous. The North China Plain, middle and lower Yangtze River Plain, Sichuan Basin and Guanzhong Plain had relatively high annual PM2.5 concentrations compared with the southeast coastal region, the Tibetan Plateau and the Yungui Plateau. PM2.5 mass concentrations tended to be higher in winter than in summer, however, the data for many cities showed a small peak in concentrations from May to July. An analysis of the spatial correlation of PM2.5 indicated a significant influence of topographic conditions. A lower correlation was observed where terrain features varied greatly. Based on the results of the REOF analysis and topographic characteristics, ten regions were identified in mid-eastern China, which could be considered as basic pollution prevention divisions for PM2.5; these include the North China Plain region, Pearl River Delta region, Jianghuai Plain region, middle Yangtze River Plain region, Northeast Plain region, Jiangnan coastal region, Sichuan Basin region, Qiantao Plain region, Guanzhong-Central Plain region and Yungui Plateau region. Seasonal variations in the regionalization data were observed, especially for the North China Plain and Pearl River Delta regions. Among the ten regions identified in this study, the North China Plain, Guanzhong-Central Plain, middle Yangtze River Plain and Jianghuai Plain had relatively high PM2.5 mass concentrations in comparison with the others. Therefore, these regions should be considered as the key regions to target in developing PM2.5 pollution prevention strategies. This study improves the present understanding of the spatial distribution, seasonal changes and regional status of PM2.5 pollution in China and helps establish possible control strategies for the reduction of this air pollutant. | Shuai Wang Guogang Li Zhengyu Gong Li Du Qingtao Zhou Xiaoyan Meng Shuyan Xie Lei Zhou | 2015 | Science China Chemistry2015，58，9： | 12 |
| 5 | Joint utilization of genetic analysis and semi-cloning technology reveals a digenic etiology of Müllerian anomalies显示文摘Dear Editor,Identifying pathogenic gene mutations and their combination is critical but challenging in dissecting the etiology of complex diseases when more than one gene is involved.1 The digenic/oligogenic/omnigenic models,holding that more than one gene could act synergistically,appeal to a wide range of genes responsible for complex phenotypes.1,2,3,4 These genetic models advanced our understanding of genetic factors underlying complex phenotypes,yet an accordingly rapid and efficient experimental assay for identifying pathogenic combinations of genetic variants at animal model level is lacking and urgently needed. | Lingbo Wang Ying Zhang Xiaoyi Fu Shuangshuang Dong Shuyan Tang Ning Zhang Chengcheng Song Nan Yang Lin Zhang Hongyan Wang Huijuan Shi Li Jin Feng Zhang Jinsong Li Keqin Hua | 2020 | Cell Research2020，30，1： | 8 |
| 6 | Homozygous loss-of-function mutations in FSIP2 cause male infertility with asthenoteratospermia显示文摘Male infertility, as a major issue of human reproduction health, prevents successful natural conception. Asthenoteratospermia mainly presents one or multiple anomalies in head, neck and tail of spermatozoa, and impairs sperm function and motility (Coutton et al., 2015). Recurrent abnormalities of the fibrous sheath lead to multiple morphological abnormaliries of the sperm flagella (MMAF), which is a quite frequent type of asthenoteratospermia in male infertility (Chemes et al., 1987;Ben Khelifa et al, 2014). | Wangjie Liu Huan Wu Li Wang Xiaoyu Yang Chunyu Liu Xiaojin He Weiyu Li Jiajia Wang Yujie Chen Hongyan Wang Yang Gao Shuyan Tang Shenmin Yang Li Jin Feng Zhang Yunxi Cao | 2019 | Journal of Genetics and Genomics2019，46，1： | 7 |
| 7 | Numerical simulation of particle flow behavior in a screw conveyor using the discrete element method显示文摘Particle motion in a screw conveyor was simulated w让h the discrete element method. The particle flow behavior and transport processes at different screw rotating speeds and filling levels were investigated in this study. The spatial distributions of particle velocity were predicted. The predicted mass flow rate increased w让h increasing screw rotating speed and filling level. The contact forces and granular temperatures of particles were also calculated. The simulation results showed that the translational granular particle temperatures were higher than the rotational granular particle temperatures. In add让ion, the configurational temperatures of particles were calculated from simulated instantaneous particle overlaps, and results indicated that deformation of elastic particles contributed to the rate of energy dissipation. Good agreement between the numerical simulation and experimental results was achieved in this study. | Shuyan Wang Haolong Li Ruichao Tian Ruichen Wang Xu Wang Qiji Sun jiawei Fan | 2019 | Particuology2019，17，2： | 7 |
| 8 | In situ grown Fe_(3)O_(4)particle on stainless steel:A highly efficient electrocatalyst for nitrate reduction to ammonia显示文摘NH_(3)is an essential feedstock for fertilizer synthesis.Industry-scale NH_(3)synthesis mostly relies on the Haber-Bosch method,however,which suffers from massive CO_(2) emission and high energy consumption.Electrocatalytic NO_(3)-reduction is an attractive substitute to the Haber-Bosch method for synthesizing NH_(3)under mild conditions.As this reaction will produce a variety of products,it highly desires efficient and selective electrocatalyst for NH_(3)generation.Here,we report in situ grown Fe_(3)O_(4)particle on stainless steel(Fe_(3)O_(4)/SS)as a high-efficiency electrocatalyst for NO_(3)^(-)reduction to NH_(3).In 0.1 M NaOH with 0.1 M NaNO_(3),such Fe_(3)O_(4)/SS reaches a remarkable Faradaic efficiency of 91.5%and a high NH_(3)yield of 10,145μg·h^(-1)·cm^(-2)at-0.5 V vs.reversible hydrogen electrode(RHE).Furthermore,it owns robust structural and electrochemical stability.This work provides useful guidelines to expand the scope of metallic oxide electrocatalysts for NH_(3)synthesis.The catalytic mechanism is uncovered and discussed further by theoretical calculations. | Xiaoya Fan Lisi Xie Jie Liang Yuchun Ren Longcheng Zhang Luchao Yue Tingshuai Li Yonglan Luo Na Li Bo Tang Yang Liu Shuyan Gao Abdulmohsen Ali Alshehri Qian Liu Qingquan Kong Xuping Sun | 2022 | Nano Research2022，15，4： | 7 |
| 9 | Research progress of natural antioxidants in foods for the treatment of diseases显示文摘A large amount of free radicals can be generated in human body during metabolic process.These free radicals can result in oxidative stress and homeostasis imbalance,even some chronic diseases and cancers if they are not promptly removed.Currently,many studies devote to exploring and utilizing natural antioxidants to remove excessive free radicals in human body,thus realizing the prevention and treatment of diseases.In the present study,the major species of natural antioxidants in foods that are benefit for the prevention and treatments of diseases have been summarized.Meanwhile,the research progress and future development have also been proposed.All of these studies,on the one hand,can provide a theoretical basis for the development of drugs and healthy foods;on the other hand,can offer novel development ideas for food industry,especially for food additive industry. | Sen Li Guowei Chen Chao Zhang Man Wu Shuyan Wu Qing Liu | 2014 | Food Science and Human Wellness2014，3，3： | 6 |
| 10 | A Salmonella enterica serovar Typhi plasmid induces rapid and massive apoptosis in infected macrophages显示文摘pRST98 is a chimeric plasmid isolated from Salmonella enterica serovar Typhi(S.typhi)that mediates the functions of drug resistance and virulence.Previously,we reported that Salmonella plasmid virulence(spv)genes were present in S.typhi.In our current study,we investigated whether plasmid pRST98 exhibits significant cytotoxicity in macrophages.pRST98 was transferred into the avirulent Salmonella enterica serovar Typhimurium(S.typhimurium)strain RIA to create the transconjugant pRST98/RIA.The standard S.typhimurium virulent strain SR-11,which carries a 100-kb virulence plasmid,was used as a positive control.The bacterial strains were incubated with a murine macrophage-like cell line(J774A.1)in vitro.Apoptosis of J774A.1 cells was examined by electron microscopy and flow cytometry after annexin-V/propidium iodide labeling,and the survival of Salmonella strains in J774A.1 cells was determined.Results showed that macrophages infected with strain pRST98/RIA displayed greater levels of apoptosis than those infected with RIA and that pRST98 may increase bacterial survival in macrophages.Further studies showed that the pRST98-induced death of macrophages was associated with the loss of mitochondrial membrane potential and that pRST98 may activate caspase-9 and then caspase-3.The research data indicate that the virulence of bacteria that contain the pRST98 plasmid is enhanced;the presence of this plasmid increases the survival of the bacterial pathogen and acts through the mitochondrial pathway to mediate macrophage apoptosis. | Shuyan Wu Yuanyuan Li Yang Xu Qiong Li Yuanyuan Chu Rui Huang Zhenghong Qin | 2010 | Cellular & Molecular Immunology2010，7，4： | 6 |
| 11 | Predictive cruise control for heavy trucks based on slope information under cloud control system显示文摘With the advantage of fast calculation and map resources on cloud control system(CCS), cloud-based predictive cruise control(CPCC) for heavy trucks has great potential to improve energy efficiency, which is significant to achieve the goal of national carbon neutrality. However, most investigations focus on the on-board predictive cruise control(PCC) system,lack of research on CPCC architecture under CCS. Besides, the current PCC algorithms have the problems of a single control target and high computational complexity, which hinders the improvement of the control effect. In this paper, a layered architecture based on CCS is proposed to effectively address the realtime computing of CPCC system and the deployment of its algorithm on vehicle-cloud. In addition, based on the dynamic programming principle and the proposed road point segmentation method(RPSM), a PCC algorithm is designed to optimize the speed and gear of heavy trucks with slope information. Simulation results show that the CPCC system can adaptively control vehicle driving through the slope prediction, with fuel-saving rate of 6.17% in comparison with the constant cruise control. Also,compared with other similar algorithms, the PCC algorithm can make the engine operate more in the efficient zone by cooperatively optimizing the gear and speed. Moreover, the RPSM algorithm can reconfigure the road in advance, with a 91% roadpoint reduction rate, significantly reducing algorithm complexity.Therefore, this study has essential research significance for the economic driving of heavy trucks and the promotion of the CPCC system. | LI Shuyan WAN Keke GAO Bolin LI Rui WANG Yue LI Keqiang | 2022 | Journal of Systems Engineering and Electronics2022，33，4： | 5 |
| 12 | Analysis of severe human adenovirus infection outbreak in Guangdong Province,southern China in 2019显示文摘During 2018–2019,a severe human adenovirus(HAdV)infection outbreak occurred in southern China.Here,we screened 18 respiratory pathogens in 1704 children(≤14 years old)hospitalized with acute respiratory illness in Guangzhou,China,in 2019.In total,151 patients had positive HAdV test results;34.4%(52/151)of them exhibited severe illness.HAdV infection occurred throughout the year,with a peak in summer.The median patient age was 3.0(interquartile range:1.1–5.0)years.Patients with severe HAdV infection exhibited increases in12 clinical indexes(P≤0.019)and decreases in four indexes(P≤0.007),compared with patients exhibiting nonsevere infection.No significant differences were found in age or sex distribution according to HAdV infection severity(P>0.05);however,the distributions of comorbid disease and HAdV co-infection differed according to HAdV infection severity(P<0.05).The main epidemic types were HAdV-3(47.0%,71/151)and HAdV-7(46.4%,70/151).However,the severe illness rate was significantly higher in patients with HAdV-7(51.4%)than in patients with HAdV-3(19.7%)and other types of HAdV(20%)(P<0.001).Sequencing analysis of genomes/capsid genes of 13 HAdV-7 isolates revealed high similarity to previous Chinese isolates.A representative HAdV-7isolate exhibited a similar proliferation curve to the curve described for the epidemic HAdV-3 strain Guangzhou01(accession no.DQ099432)(P>0.05);the HAdV-7 isolate exhibited stronger virulence and infectivity,compared with HAdV-3(P<0.001).Overall,comorbid disease,HAdV co-infection,and high virulence and infectivity of HAdV-7 were critical risk factors for severe HAdV infection;these data can facilitate treatment,control,and prevention of HAdV infection. | Wenkuan Liu Shuyan Qiu Li Zhang Hongkai Wu Xingui Tian Xiao Li Duo Xu Jing Dai Shujun Gu Qian Liu Dehui Chen Rong Zhou | 2022 | Virologica Sinica2022，37，3： | 5 |
| 13 | Coriander Genomics Database:a genomic,transcriptomic,and metabolic database for coriander显示文摘Coriander(Coriandrum sativum L.),also known as cilantro,is a globally important vegetable and spice crop.Its genome and that of carrot are models for studying the evolution of the Apiaceae family.Here,we developed the Coriander Genomics Database(CGDB,http://gffzzc8ce0bd092c048a1h5xnqo0nnu9cn6k0w.ffgz.tsg.suse.edu.cn/)to collect,store,and integrate the genomic,transcriptomic,metabolic,functional annotation,and repeat sequence data of coriander and carrot to serve as a central online platform for Apiaceae and other related plants.Using these data sets in the CGDB,we intriguingly found that seven transcription factor(TF)families showed significantly greater numbers of members in the coriander genome than in the carrot genome.The highest ratio of the numbers of MADS TFs between coriander and carrot reached 3.15,followed by those for tubby protein(TUB)and heat shock factors.As a demonstration of CGDB applications,we identified 17 TUB family genes and conducted systematic comparative and evolutionary analyses.RNA-seq data deposited in the CGDB also suggest dose compensation effects of gene expression in coriander.CGDB allows bulk downloading,significance searches,genome browser analyses,and BLAST searches for comparisons between coriander and other plants regarding genomics,gene families,gene collinearity,gene expression,and the metabolome.A detailed user manual and contact information are also available to provide support to the scientific research community and address scientific questions.CGDB will be continuously updated,and new data will be integrated for comparative and functional genomic analysis in Apiaceae and other related plants. | Xiaoming Song Fulei Nie Wei Chen Xiao Ma Ke Gong Qihang Yang Jinpeng Wang Nan Li Pengchuan Sun Qiaoying Pei Tong Yu Jingjing Hu Xinyu Li Tong Wu Shuyan Feng Xiu-Qing Li Xiyin Wang | 2020 | Horticulture Research2020，7，1： | 4 |
| 14 | Impact of National Centralized Drug Procurement Policy on Antiviral Utilization and Expenditure for Hepatitis B in China显示文摘Background and Aims:The National Centralized Drug Procurement(NCDP)policy was launched in China's Mainland in April 2019,with entecavir(ETV)and tenofovir disoproxil fumarate(TDF)being included in the procurement list.We conducted the current study to investigate the impact of the NCDP policy on the utilization and expenditures of antiviral therapy for chronic hepatitis B(CHB)in China.Methods:Procurement records,including monthly purchase volume,expenditure,and price of nucleos(t)ide analogs(NAs),were derived from the National Healthcare Security Administration from April 2018 to March 2021.The changes in volumes and expenditures of the first-line NAs and bid-winning products were calculated.The effects of price,volume,and structure related to drug expenditure were calculated by the Addis and Magrini(AM)Index System Analysis.Results:The purchase volume of NAs significantly increased from 134.3 to 318.3 million DDDs,whereas the expenditure sharply decreased from 1,623.41 to 490.43 million renminbi(RMB)or 241.94 to 73.09 million US dollars(USD).The proportions of firstline NAs rose from 72.51%(ETV:69.00%,TDF:3.51%)to 94.97%(ETV:77.42%,TDF:17.55%).AM analysis showed that the NCDP policy decreased the expenditure of all NAs(S=0.91)but increased that of the first-line NAs in the bidwinning list(S=1.13).Assuming the population size of CHB patients remains stable and a compliance rate of≥75%,the proportion of CHB patients receiving first-line antiviral therapy would increase from 6.36–8.48%to 11.56–15.41%.Conclusions:The implementation of the NCDP policy significantly increased the utilization of first-line NAs for CHB patients at a lower expenditure.The findings provided evidence for optimizing antiviral therapy strategy and allocating medical resources in China. | Xinyu Zhao Min Li Hao Wang Xiaoqian Xu Xiaoning Wu Yameng Sun Canjian Ning Bingqiong Wang Shuyan Chen Hong You Jidong Jia Yuanyuan Kong | 2022 | Journal of Clinical and Translational Hepatology2022，10，3： | 4 |
| 15 | CoFe-LDH nanowire arrays on graphite felt: A high-performance oxygen evolution electrocatalyst in alkaline media显示文摘Developing non-noble-metal oxygen evolution reaction(OER) electrocatalysts with high performance is critical to electrocatalytic water splitting. In this work, we fabricated Co Fe-layered double hydroxide(LDH) nanowire arrays on graphite felt(Co Fe-LDH/GF) via a hydrothermal method. The Co Fe-LDH/GF, as a robust integrated 3 D OER anode, exhibits excellent catalytic activity with the need of low overpotential of 252 and 285 mV to drive current densities of 10 and 100 mA/cm^(2) in 1.0 mol/L KOH, respectively. In addition, it also maintains electrochemical durability for at least 24 h. This work would open up avenues for the development of GF like attractive catalyst supports for oxygen evolution applications. | Biao Deng Jie Liang Luchao Yue Tingshuai Li Qian Liu Yang Liu Shuyan Gao Abdulmohsen Ali Alshehri Khalid Ahmed Alzahrani Yonglan Luo Xuping Sun | 2022 | Chinese Chemical Letters2022，33，2： | 4 |
| 16 | Accelerated generation of oligodendrocyte progenitor cells from human induced pluripotent stem cells by forced expression of Sox10 and Olig2显示文摘Oligodendrocyte progenitor cells(OPCs) hold great promise for treatment of dysmyelinating disorders, such as multiple sclerosis and cerebral palsy. Recent studies on generation of human OPCs mainly use human embryonic stem cells(hESCs) or neural stem cells(NSCs) as starter cell sources for the differentiation process. However, NSCs are restricted in availability and the present method for generation of oligodendrocytes(OLs) from ESCs often requires a lengthy period of time. Here, we demonstrated a protocol to efficiently derive OPCs from human induced pluripotent stem cells(hiPSCs) by forced expression of two transcription factors(2TFs), Sox10 and Olig2. With this method, PDGFRα+ OPCs can be obtained in 14 days and O4^+ OPCs in 56 days.Furthermore, OPCs may be able to differentiate to mature OLs that could ensheath axons when co-cultured with rat cortical neurons. The results have implications in the development of autologous cell therapies. | Pengyan Li Mo Li Xihe Tang Shuyan Wang Y.Alex Zhang Zhiguo Chen | 2016 | Science China(Life Sciences)2016，59，11： | 4 |
| 17 | Recent Advancements on Photothermal Conversion and Antibacterial Applications over MXenes-Based Materials显示文摘The pernicious bacterial proliferation and emergence of super-resistant bacteria have already posed a great threat to public health,which drives researchers to develop antibiotic-free strategies to eradicate these fierce microbes.Although enormous achievements have already been achieved,it remains an arduous challenge to realize efficient sterilization to cut off the drug resistance generation.Recently,photothermal therapy(PTT)has emerged as a promising solution to efficiently damage the integrity of pathogenic bacteria based on hyperthermia beyond their tolerance.Until now,numerous photothermal agents have been studied for antimicrobial PTT.Among them,MXenes(a type of two-dimensional transition metal carbides or nitrides)are extensively investigated as one of the most promising candidates due to their high aspect ratio,atomic-thin thickness,excellent photothermal performance,low cytotoxicity,and ultrahigh dispersibility in aqueous systems.Besides,the enormous application scenarios using their antibacterial properties can be tailored via elaborated designs of MXenes-based materials.In this review,the synthetic approaches and textural properties of MXenes have been systematically presented first,and then the photothermal properties and sterilization mechanisms using MXenes-based materials are documented.Subsequently,recent progress in diverse fields making use of the photothermal and antibacterial performances of MXenes-based materials are well summarized to reveal the potential applications of these materials for various purposes,including in vitro and in vivo sterilization,solar water evaporation and purification,and flexible antibacterial fabrics.Last but not least,the current challenges and future perspectives are discussed to provide theoretical guidance for the fabrication of efficient antimicrobial systems using MXenes. | Shuyan Hao Hecheng Han Zhengyi Yang Mengting Chen Yanyan Jiang Guixia Lu Lun Dong Hongling Wen Hui Li Jiurong Liu Lili Wu Zhou Wang Fenglong Wang | 2022 | Nano-Micro Letters2022，14，11： | 4 |
| 18 | Solid ion transition route to 3D S-N-codoped hollow carbon nanosphere/graphene aerogel as a metal-free handheld nanocatalyst for organic reactions显示文摘新奇没有金属的体积 nanocatalyst, S-N-codoped 空碳 nanosphere/graphene aerogel (SNC-GA-1000 ) ,成功地用一条灵巧、干净的稳固的离子转变线路被制作了。在这个方法, ZnS 被用作难模板和 S 来源,当 polydopamine 充当一个减少的代理人和碳来源时。在高退火温度, Zn 金属被减少并且蒸发,离开仅仅自由的 S 蒸汽扩散进碳层。有趣地,同样获得的 SNC-GA-1000 比卸掉的赤裸的 S-N-codoped 碳 nanospheres 在器官的减小反应展出许多更高催化的活动。与 ZnS@polydopamine 核心壳 nanospheres (ZnS@PDA ) 装载的 graphene 氧化物表的热水的减小负担得起三维的体积 graphene aerogel。尽管 nanosized 催化剂展出高催化的活动,他们的随后的分离不总是是令人满意的,成为处理以后困难。这条途径完成在活动和可分性之间的一宗交易。更重要地,由于 3D,结构的自然,如此的体积和手持 nanocatalysts 能容易被分开并且再循环。 | Jing Pan Shuyan Song Junqi Li Fan Wang Xin Ge Shuang Yao Xiao Wang Hongjie Zhang | 2017 | Nano Research2017，10，10： | 3 |
| 19 | Spatial Pattern and Influencing Factor Analysis of Attended Collection and Delivery Points in Changsha City, China显示文摘Attended collection and delivery points are vital components of ‘last-mile logistics’.Based on point of interest(POI) data for Cainiao Stations and China Post stations in Changsha City, China, this paper provides a detailed exploration of the basic features, spatial distribution, and location influencing factors of attended collection and delivery points.Specifically, analyses of the types, service objects and location distributions of the attended collection and delivery points alongside a discussion of their spatial pattern and influencing factors provides a reference for their general geographic layout and characteristics.The findings of this study indicate that: 1) The main mode of operation of attended collection and delivery points is franchises, with other modes of operation rely on supermarkets and other individual shop types.2) The main service targets of attended collection and delivery points are communities, schools, and businesses, followed by townships, enterprises, scenic spots, and administrative units.3) Approximately 77.44% of the attended collection and delivery points are located near the exits of service areas;others are situated in the centre of the service areas.For the Cainiao Stations, 80% are located within 125 m of the exit;for the China Post stations, 80% are located within 175 m of the exit.4) The spatial distribution of the attended collection and delivery points in Changsha is unbalanced, with ‘more centre and fewer surrounding’.The centre is an ‘inverted triangle’, and the edge is an ‘orphan’, showing a northwest-southeast orientation and symmetrical along the axis.The layout of the attended collection and delivery points forms three core areas, and the number of sites decreases with the distance from the core.5) The number and distribution of the attended collection and delivery points are strongly consistent with the regional economic development level, population, and roadway system traffic convenience.Most attended collection and delivery points are on residential, scientific and educational, and commercial and financial land. | XUE Shuyan LI Gang YANG Lan LIU Ling NIE Qifan Muhammad Sajid MEHMOOD | 2019 | Chinese Geographical Science2019，29，6： | 3 |
| 20 | Construction of trace silver modified core@shell structured Pt-Ni nanoframe@CeO2 for semihydrogenation of phenylacetylene显示文摘The Pt-Ni nanoframe catalysts have attracted great interest owing to their unique electronic structure and excellent catalytic performance. However, the stability of the tenu ous edges of nano frame-structures is dissatisfactory and their un iversal applicati ons in catalytic market beyond electrocatalytic reactions are yet to be tapped and explored. Herein, we developed a new core@ shell structured Pt-Ni nanoframe@CeO2 (Pt-Ni NF@CeO2) composite via etching the Ni from inhomogeneous Pt-Ni rhombic dodecahedra (Pt-Ni RD) by cerium(lll) acetate hydrate (Ce(OAc)3). In this path, Pt-Ni RD was used as self-sacrificial 怕mplate, while the Ce(OAc)3 serves as the provider of the Ce3* source and OH' for the formation of CeO2 shell, etchant of Pt-Ni RD, and the surface modification agent. By this way, the etching of Pt-Ni RD and the formation of the CeO2 shell are simultaneously proceeded to form the final Pt-Ni NF@CeO2 in one step. The obtained Pt-Ni NF@CeO2 exhibits strong in terfacial charge tran sfer interactio n betwee n Pt-Ni NF core and CeO2 shell eve n without reductio n treatment, leading to enhan ced catalytic activity in the hydrogenation of phenylacetylene. After introduction of trace silver, the Pt-Ni-Ag4.9 NF@CeO2 achieves remarkable catalytic performa nee for the selective con versi on of phe ny lacetyle ne to styrene: high con version (100%), styre ne selectivity (86.5%), and good stability. It reveals that enc apsulatio n n oble metal nano frames into metal oxide to form core @ shell structured hybrids will in deed enhance their stability and catalytic properties. Particularly, this work expends the application of noble metal nanoframes materials to hydrogenation reacti ons. | Yan Long Jian Li Lanlan Wu Qishun Wang Yu Liu Xiao Wang Shuyan Song Hongjie Zhang | 2019 | Nano Research2019，12，4： | 3 |
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