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| 1 | Synthesis of well-defined Fe3O4 nanorods/N-doped graphene for lithium-ion batteries显示文摘磁性的 nanoparticles 的几何尺寸和分发对 graphene (GN ) 的形态学批评 nanocomposites,并且当这些 composites 在锂离子电池(解放) 被用作阳极材料时,因此,他们能影响能力和骑车的性能。在这个工作, Fe 3 O 4 nanorods 在二步,一个热水的过程和一个退火的过程从一位二进制先锋被扔到充分扩大的做氮的 GN 表上。这条线路有效地调节了 Fe 3 O 4 nanorod 尺寸分发并且阻止了他们的聚集。二进制先锋的转变被 X 光检查衍射(XRD ) 描绘, Fourier 变换红外线(FTIR ) 光谱学, X 光检查光电子光谱学(XPS ) , thermogravimetric 分析(TGA ) ,和传播电子显微镜学(TEM ) 。XPS 分析显示了做 N 的 GN 表的存在,并且磁性的 nanocrystals 在弄平的做 N 的 GN 表的表面上被抛锚并且一致地散布了。作为高效阳极材料,结构为电子运输和交换是有益的,吗导致 929 妈頿酎鯺?的一个大可逆能力?钱醨?鎓?鑟醫???钳????頿铭????龜鴿????讵??徬?讂?疞???鐿?鯷鳅?醛???讬????锿???魝??螮?箖徬吗?? | Jiqing Jiao Wenda Qiu Jianguo Tang Liuping Chen Laiying Jing | 2016 | Nano Research2016，9，5： | 18 |
| 2 | A "green pathway" different from simple diffusion in soft matter: Fast molecular transport within micro/nanoscale multiphase porous systems显示文摘 | Jiantao Feng Fang Wang Xinxiao Han Zhuo Ao Quanmei Sun Wenda Hua Peipei Chen Tianwei Jing Hongyi Li Dong Han | 2014 | Nano Research2014，7，3： | 18 |
| 3 | Chemical Compositions and Distribution Characteristics of Cements in Longmaxi Formation Shales, Southwest China显示文摘Shale gas resources have been regarded as a viable energy source, and it is of great significance to characterize the shale composition of different cements, such as quartz and dolomite. In this research, chemical analysis and the multifractal method have been used to study the mineral compositions and petrophysical structures of cements in shale samples from the Longmaxi Formation, China. X-ray diffraction, electron microprobe, field emission scanning electron microscopy, cathodoluminescence microscopy and C-O isotope analyses confirmed that cements in the Longmaxi Formation shales are mainly composed of Fe-bearing dolomite and quartz. Fe-bearing dolomite cements concentrate around dolomite as annuli, filling micron-sized inorganic primary pores. Quartz cements in the form of nanoparicles fill primary inter-crystalline pores among clay minerals. Theoretical calculation shows that the Fe-bearing dolomite cements formed slightly earlier than the quartz cements, but both were related to diagenetic illitization of smectite. Moreover, multifractal analysis reveals that the quartz cements are more irregularly distributed in pores than the Fe-bearing dolomite cements. These results suggest that the plugging effect of the quartz cements on the primary inoraganic pore structures is the dominant factor resulting in low interconnected porosity of shales, which are unfavorable for the enrichment of shale gas. | Wenda Zhou Shuyun Xie Zhengyu Bao Emmanuel John M. Carranza Lei Lei Zhenzhen Ma | 2019 | Journal of Earth Science2019，30，5： | 12 |
| 4 | The enhanced X-ray Timing and Polarimetry mission—eXTP显示文摘In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the dynamics of matter in strong-field gravity. In addition to investigating fundamental physics, eXTP will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects. In particular, its wide field monitoring capabilities will be highly instrumental to detect the electro-magnetic counterparts of gravitational wave sources.The paper provides a detailed description of:(1) the technological and technical aspects, and the expected performance of the instruments of the scientific payload;(2) the elements and functions of the mission, from the spacecraft to the ground segment. | ShuangNan Zhang Andrea Santangelo Marco Feroci YuPeng Xu FangJun Lu Yong Chen Hua Feng Shu Zhang Sφren Brandt Margarita Hernanz Luca Baldini Enrico Bozzo Riccardo Campana Alessandra De Rosa YongWei Dong Yuri Evangelista Vladimir Karas Norbert Meidinger Aline Meuris Kirpal Nandra Teng Pan Giovanni Pareschi Piotr Orleanski QiuShi Huang Stephane Schanne Giorgia Sironi Daniele Spiga Jiri Svoboda Gianpiero Tagliaferri Christoph Tenzer Andrea Vacchi Silvia Zane Dave Walton ZhanShan Wang Berend Winter Xin Wu Jean J.M.in't Zand Mahdi Ahangarianabhari Giovanni Ambrosi Filippo Ambrosino Marco Barbera Stefano Basso Jörg Bayer Ronaldo Bellazzini Pierluigi Bellutti Bruna Bertucci Giuseppe Bertuccio Giacomo Borghi XueLei Cao Franck Cadoux Francesco Ceraudo TianXiang Chen Yu Peng Chen Jerome Chevenez Marta Civitani Wei Cui WeiWei Cui Thomas Dauser Ettore Del Monte Sergio Di Cosimo Sebastian Diebold Victor Doroshenko Michal Dovciak YuanYuan Du Lorenzo Ducci QingMei Fan Yannick Favre Fabio Fuschino JoséLuis Ga'lvez Min Gao MingYu Ge Olivier Gevin Marco Grassi QuanYing Gu YuDong Gu DaWei Han Bin Hong Wei Hu Long Ji ShuMei Jia WeiChun Jiang Thomas Kennedy Ingo Kreykenbohm Irfan Kuvvetli Claudio Labanti Luca Latronico Gang Li MaoShun Li Xian Li Wei Li ZhengWei Li Olivier Limousin HongWei Liu XiaoJing Liu Bo Lu Tao Luo Daniele Macera Piero Malcovati Adrian Martindale Malgorzata Michalska Bin Meng Massimo Minuti Alfredo Morbidini Fabio Muleri Stephane Paltani Emanuele Perinati Antonino Picciotto Claudio Piemonte JinLu Qu Alexandre Rachevski Irina Rashevskaya Jerome Rodriguez Thomas Schanz ZhengXiang Shen LiZhi Sheng JiangBo Song LiMing Song Carmelo Sgro Liang Sun Ying Tan Phil Uttley Bo Wang DianLong Wang GuoFeng Wang Juan Wang LangPing Wang YuSa Wang Anna L.Watts XiangYang Wen Jörn Wilms ShaoLin Xiong JiaWei Yang Sheng Yang YanJi Yang Nian Yu WenDa Zhang Gianluigi Zampa Nicola Zampa Andrzej A.Zdziarski AiMei Zhang ChengMo Zhang Fan Zhang Long Zhang Tong Zhang Yi Zhang XiaoLi Zhang ZiLiang Zhang BaoSheng Zhao ShiJie Zheng Yu Peng Zhou Nicola Zorzi J.Frans Zwart | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，2： | 11 |
| 5 | Artificial root exudates and soil organic carbon mineralization in a degraded sandy grassland in northern China显示文摘Plant root exudates contain various organic and inorganic components that include glucose, citric and oxalic acid. These components affect rhizosphere microbial and microfaunal activities, but the mechanisms are not fully known. Studies concerned from degraded grassland ecosystems with low soil carbon(C) contents are rare, in spite of the global distribution of grasslands in need of restoration. All these have a high potential for carbon sequestration, with a reduced carbon content due to overutilization. An exudate component that rapidly decomposes will increase soil respiration and CO2 emission, while a component that reduces decomposition of native soil carbon can reduce CO2 emission and actually help sequestering carbon in soil. Therefore, to investigate root exudate effects on rhizosphere activity, citric acid, glucose and oxalic acid(0.6 g C/kg dry soil) were added to soils from three biotopes(grassland, fixed dune and mobile dune) located in Naiman, Horqin Sandy Land, Inner Mongolia, China) and subjected to a 24-day incubation experiment together with a control. The soils were also analyzed for general soil properties. The results show that total respiration without exudate addition was highest in grassland soil, intermediate in fixed dune and lowest in mobile dune soil. However, the proportion of native soil carbon mineralized was highest in mobile dune soil, reflecting the low C/N ratio found there. The exudate effects on CO2-C emissions and other variables differed somewhat between biotopes, but total respiration(including that from the added substrates) was significantly increased in all combinations compared with the control, except for oxalic acid addition to mobile dune soil, which reduced CO2-C emissions from native soil carbon. A small but statistically significant increase in pH by the exudate additions in grassland and fixed dune soil was observed, but there was a major decrease from acid additions to mobile dune soil. In contrast, electrical conductivity decreased in grassland and fixed dune soil and increased in mobile dune. Thus, discrete components of root exudates affected soil environmental conditions differently, and responses to root exudates in soils with low carbon contents can differ from those in normal soils. The results indicate a potential for, e.g., acid root exudates to decrease decomposition rate of soil organic matter in low carbon soils, which is of interest for both soil restoration and carbon sequestration. | YongQing LUO XueYong ZHAO Olof ANDRéN YangChun ZHU WenDa HUANG | 2014 | Journal of Arid Land2014，6，4： | 11 |
| 6 | Forecast of Flood in Chaohu Lake Basin of China Based on Grey-Markov Theory显示文摘Flood is one kind of unexpected and the most common natural disasters, which is affected by many factors and has complex mechanism. At home and abroad, there is still no mature theory and method used for the long-term forecast of natural precipitation at present. In the present paper the disadvantages of grey GM (1, 1) and Markov chain are ana- lyzed, and Grey-Markov forecast theory about flood is put forward and then the modifying model is developed by making prediction of Chaohu Lake basin. Hydrological law was conducted based on the theoretical forecasts by grey system GM (1, 1) forecast model with improved Markov chain. The above method contained Stat-analysis, embodying scientific approach, precise forecast and its reliable results. | LI Xiang WANG Xinyuan SHAO Wei XIA Linyi ZHANG Guangsheng TIAN Bing LI Wenda PENG Peng | 2007 | Chinese Geographical Science2007，17，1： | 10 |
| 7 | Diamonds Discovered from High–Cr Podiform Chromitites of Bulqiza,Eastern Mirdita Ophiolite,Albania显示文摘Various combinations of diamond, moissanite, zircon, corundum, rutile and titanitehave been recovered from the Bulqiza chromitites. More than 10 grains of diamond have been recovered, most of which are pale yellow to reddish–orange to colorless. The grains are all 100–300 μm in size and mostly anhedral, but with a range of morphologies including elongated, octahedral and subhedral varieties. Their identification was confirmed by a characteristic shift in the Raman spectra between 1325 cm^(-1) and 1333 cm^(-1), mostly at 1331.51 cm^(-1) or 1326.96 cm^(-1). This investigation extends the occurrence of diamond and moissanite to the Bulqiza chromitites in the Eastern Mirdita Ophiolite. Integration of the mineralogical, petrological and geochemical data of the Bulqiza chromitites suggests their multi–stage formation. Magnesiochromite grains and perhaps small bodies of chromitite formed at various depths in the upper mantle, and encapsulated the ultra–high pressure, highly reduced and crustal minerals. Some oceanic crustal slabs containing the magnesiochromite and their inclusion were later trapped in suprasubduction zones, where they were modified by tholeiitic and boninitic arc magmas, thus changing the magnesiochromite compositions and depositing chromitite ores in melt channels. | XIONG Fahui YANG Jingsui ROBINSON Paul T. DILEK Yildirim MILUSHI Ibrahim XU Xiangzhen ZHOU Wenda ZHANG Zhongming RONG He | 2017 | Acta Geologica Sinica(English Edition)2017，91，2： | 9 |
| 8 | An in vivo study of the biodistribution of gold nanoparticles after intervaginal space injection in the tarsal tunnel显示文摘金 nanoparticles (AuNPs ) 的 biodistribution 是仔细与毒物学的效果有关并且因为他们的潜在的申请,担心大。与为液体运输的新奇解剖、组织学的结构的发现,然而,内在的机制包含了在在里面 AuNPs 的 vivo 运输和 biodistribution 要求进一步深入的调查。在当前的学习,在腱,容器,和神经纤维的一个焦点的点可以最佳地与另外的遥远的结缔组织连接的地方,我们在跗骨的隧道在 intervaginal 空间注射(ISI ) 以后在老鼠调查了 10-nm AuNPs 的 biodistribution。AuNPs 的静脉内的注射(IVI ) 用作控制。血和机关与诱导地联合的血浆团 spectrometry (ICPMS ) 为 Au 分发的定量分析在注射以后在 5, 15,和 30 min 并且在 1, 4, 12,和 24 h 被收集。IVI 和 ISI 产出显著地不同的结果:在在 ISI 以后的血的 AuNP 内容在 IVI 以后是比那低得多的;在肺,心,和肠是类似的;并且在皮和肌肉是更高的。这些调查结果被 AuNP 内容和相对机关 AuNP 分发比例的比率支持。我们表明的结果一快,直接并且发行量无关的 AuNP 器官运输小径,它可以改进我们生理、病理学的 biodistribution 的理解在生物系统处理。而且,这些结果提供新奇卓见进在里面 vivo 运输和 AuNPs 的 biodistribution,它可以导致新奇、有效治疗学并且管理策略。 | Xiaoli Shi Yuting Zhu Wenda Hua Yinglu Ji Qing Ha Xinxiao Han Yang Liu Jingwei Gao Qiang Zhang Sidi Liu Keli Ren Xiaochun Wu Hongyi Li Dong Han | 2016 | Nano Research2016，9，7： | 7 |
| 9 | Toward sustainable desertification reversion:A case study in Horqin Sandy Land of northern China显示文摘Desertification reversion is an interactive process involving climate, land use change, and water processes. In order to reveal the relationship between desertification reversion and these factors, we analyzed historical data on precipitation, air temperature, desertified land changes, underground water tables, and water body changes in Naiman County in the central part of Horqin Sandy Land. Our analysis showed that during 1961-2010 the annual precipitation fluctuated dramatically and has decreased fairly consistently in recent years. The air temperature increased by 0.50-1.25 °C, and the minimum temperature increased more obviously. The desertified land area increased from 42,300 km2 in 1959 to 62,000 km2 in 1985, and then declined to about 50,000 km2 in 2010. The underground water tables have been lowered by about 10 m in the past 30 years, and declined more rapidly in recent years. Desertified land is significantly related to the amount of total cropland, and underground water tables are significantly correlated with annual precipitation and the amount of irrigated cropland. Therefore, it is necessary to pursue sustainable desertification reversion without compromising the capacity for local development and restoration of degraded land, through application of appropriate management measures for improving water availability in this region. | XueYong Zhao ShaoKun Wang YaYong Luo WenDa Huang Hao Qu Jie Lian | 2015 | Research in Cold and Arid Regions2015，7，1： | 6 |
| 10 | Carbon confinement synthesis of interlayer-expanded and sulfur-enriched MoS2+x nanocoating on hollow carbon spheres for advanced Li-S batteries显示文摘High energy density and low-cost lithium-sulfur batteries have been considered as one of the most promising candidates for next-generation energy storage systems.However,the intrinsic problems of the sulfur cathode severely restrict their further practical application.Here,a unique double-shell architecture composed of hollow carbon spheres@interlayer-expanded and sulfur-enriched MoS2+x nanocoating composite has been developed as an efficient sulfur host.A uniform precursor coating derived from heteropolyanions-induced polymerization of pyrrole leads to space confinement effect during the in-situ sulfurization process,which generates the interlayer-expanded and sulfur-enriched MoS2+x nanosheets on amorphous carbon hollow spheres.This new sulfur host possesses multifarious merits including sufficient voids for loading sulfur active materials,high electronic conductivity,and fast lithium-ion diffusive pathways.In addition,additional active edge sites of MoS2+x accompanied by the nitrogen-doped carbon species endow the sulfur host with immobilizing and catalyzing effects on the soluble polysulfide species,dramatically accelerating their conversion kinetics and re-utilization.The detailed defect-induced interface catalytic reaction mechanism is firstly proposed.As expected,the delicately-designed sulfur host exhibits an outstanding initial discharge capacity of 1,249 mAh·g^−1 at 0.2 C and a desirable rate performance(593 mAh·g^−1 at 5.0 C),implying its great prospects in achieving superior electrochemical performances for advanced lithium sulfur batteries. | Wenda Li Dezhu Wang Zihao Song Zhijiang Gong Xiaosong Guo Jing Liu Zhonghua Zhang Guicun Li | 2019 | Nano Research2019，12，11： | 6 |
| 11 | Improved Baseline Correction Method Based on Polynomial Fitting for Raman Spectroscopy显示文摘 | Haibing HU Jing BAI Guo XIA Wenda ZHANG Yan MA | 2018 | Photonic Sensors2018，8，4： | 6 |
| 12 | Fixed-length roof cutting with vertical hydraulic fracture based on the stress shadow effect:A case study显示文摘Pre-driven longwall retracement roadway(PLRR)is commonly used in large mine shaft.The support crushing disasters occur frequently during the retracement,and roof management is necessary.Taking the 31107 panel as research background,the roof breaking structure of PLRR is analyzed.It is concluded that the roof cutting with vertical hydraulic fracture(HF)at a specified position,that is,fixed-length roof cutting,can reduce support load and keep immediate roof intact.The extended finite element method(XFEM)is applied to simulate hydraulic fracturing.The results show that both the axial and transverse hydraulic fracturing cannot effectively create vertical HFs.Therefore,a novel construction method of vertical HF based on the stress shadow effect(SSE)is proposed.The stress reversal region and HF orientation caused by the prefabricated hydraulic fracture(PF)are verified in simulation.The sub-vertical HFs are obtained between two PFs,the vertical extension range of which is much larger than that of directional hydraulic fracturing.The new construction method was used to determine the field plan for fixed-length roof cutting.The roof formed a stable suspended structure and deformation of the main PLRR was improved after hydraulic fracturing. | Feiteng Zhang Xiangyu Wang Jianbiao Bai Wenda Wu Bowen Wu Guanghui Wang | 2022 | International Journal of Mining Science and Technology2022，32，2： | 4 |
| 13 | Topological domain states and magnetoelectric properties in multiferroic nanostructures显示文摘Multiferroic nanostructures have been attracting tremendous attention over the past decade, due to their rich cross-coupling effects and prospective electronic applications. In particular, the emergence of some exotic phenomena in size-confined multiferroic systems, including topological domain states such as vortices, center domains, and skyrmion bubble domains, has opened a new avenue to a number of intriguing physical properties and functionalities, and thus underpins a wide range of applications in future nanoelectronic devices. It is also highly appreciated that nano-domain engineering provides a pathway to control the magnetoelectric properties, which is promising for future energy-efficient spintronic devices. In recent years, this field, still in its infancy, has witnessed a rapid development and a number of challenges too.In this article, we shall review the recent advances in the emergent domain-related exotic phenomena in multiferroic nanostructures. Specific attention is paid to the topological domain structures and related novel physical behaviors as well as the electric-field-driven magnetic switching via domain engineering. This review will end with a discussion of future challenges and potential directions. | Guo Tian Wenda Yang Deyang Chen Zhen Fan Zhipeng Hou Marin Alexe Xingsen Gao | 2019 | National Science Review2019，6，4： | 4 |
| 14 | Energy-efficient cognitive access approach to convergence communications显示文摘This article studies the cognitive access in convergence communications.Convergence communications provide upper-layer applications with uniform communication service,converging different lower-layer networks into a uniform access pattern such as all-IP communications.As an import access in convergence communications,the cognitive access provides users with a flexible and dynamic access to networks.In this article,we do not only take into account the spectrum usage of convergence communication networks,but also consider theirs energy efficiency.An energy-efficient access algorithm is proposed to improve network performance and efficiency.Different from the existing cognitive access,we regard energy efficiency as the optimal objective to turn the energy-efficient cognitive access into an optimal problem.The collision avoidance and sleeping mechanisms are used to reduce energy consumption and raise network throughput.The utility function is proposed to maximize networks’energy efficiency and then achieve the energy-efficient cognitive access.Simulation results show that the proposed approach is effective and feasible,which can significantly improve networks’energy efficiency. | XU ZhengZheng QIN WenDa TANG QingYi JIANG DingDe | 2014 | Science China(Information Sciences)2014，57，4： | 4 |
| 15 | Influence of Rare Earth Modification and Homogenization on the Microstructure and Mechanical Properties of Recycled Can 3004 Aluminum显示文摘The microscopic structure of waste can aluminum material was researched by adding Al5TiB refining agent, La-Ce rare earth and mixed rare earth modifiers, and the microstructure and mechanical performance of the modified aluminum material were studied. The experimental results show that the optimal refiner addition amount is 1.1wt%; the material performance can be significantly improved when the content of La-Ce rare earth ranges to a certain degree, but the mixed rare earth barely affects the refinement effect of the aluminum. When being homogenized, the mixed rare earth plays more obvious role in refining the aluminum material than La-Ce rare earth. The optimal plan is modifying the aluminum material with 3wt% mixed rare earth and homogenizing with annealing temperature of 580 ℃, annealing time of 12 hours and heating rate of 5 ℃/min while refining the material with 1.1wt% Al-5Ti-1B. | 段瑞斌 白培康 YANG Jing ZHANG Wenda DING Hao | 2014 | Journal of Wuhan University of Technology(Materials Science)2014，29，2： | 4 |
| 16 | 羟基磷灰石负载金催化丙酮醇与甲醇氧化酯化合成丙酮酸甲酯:酸碱性质的基本作用(英文)显示文摘丙酮醇是一种可由木质纤维素类生物质经分步或快速热裂解获得的主要轻质含氧化合物.本文报道了金基催化剂上,丙酮醇可经氧化酯化反应被选择性转化为重要的精细化学品--丙酮酸甲酯.研究结果表明具有适宜强度和比例酸碱位点的两性载体负载金催化剂能够促进氧化酯化反应进行,同时不加快羟醛缩合缩合和Cannizzaro反应等副反应进行.其中,羟基磷灰石(钙磷比为1.62)负载金催化剂上,丙酮醇转化率为62%,丙酮酸甲酯选择性可达87%. | Yan Wan Congcong Zheng Xianchi Lei Mengqi Zhuang Jinhan Lin Wenda Hu Jing dongLin Shaolong Wan Yong Wang | 2019 | Chinese Journal of Catalysis2019，40，11： | 3 |
| 17 | Afforestation effects on soil microbial abundance, microbial biomass carbon and enzyme activity in dunes of Horqin Sandy Land, northeastern China显示文摘In order to investigate the effects of afforestation on soil microbial abundance, microbial biomass carbon and enzyme activity in sandy dunes, 20-year-old Pinus sylvestris var. mongolica Litv. (PSM) and Populus simonii Carrière (PSC) mature forests were selected in Horqin Sandy Land, and mobile dunes was set as a control (CK). Results show that PSM and PSC plantations can improve soil physicochemical properties and significantly increase microbiological activity in mobile dunes. Soil microbial abundance, microbial biomass carbon and enzyme activity show an order of PS>PSM>CK. Total soil microbial abundance in PSM and PSC was respectively 50.16 and 72.48 times more than that in CK, and the differences were significant among PSM, PSC and CK. Soil microbial biomass carbon in PSM and PSC was respectively 23.67 and 33.34 times more than that in CK, and the difference was insignificant between PSM and PSC. Soil enzyme activity, including dehydrogenase (DEH), peroxidase (PER), protease (PRO), urease (URE) and cellobiohydrolase (CEL) in PSM and PSC were respectively 19.00 and 27.54, 4.78 and 9.89, 4.05 and 8.67, 29.93 and 37.46, and 9.66 and 13.42 times of that in CK. P. sylvestris and P. simonii can effectively improve soil physicochemical and microbiological properties in sandy dunes and fix mobile dunes in Horqin Sandy Land. The C mic :C ratio is an applicable indicator to estimate soil stability and soil water availability, and based on an overall consideration of plantation stability and sustainability, P. sylvestris is better than P. simonii in fixing mobile dunes in sandy land. | ShaoKun Wang XueYong Zhao TongHui Zhang YuQiang Li Jie Lian WenDa Huang JianYing Yun | 2013 | Research in Cold and Arid Regions2013，5，2： | 3 |
| 18 | Value of Preoperative Neutrophil-to-Lymphocyte Ratio in Predicting Prognosis of Surgically Resectable Urinary Cancers: Systematic Review and Meta-Analysis显示文摘Objective Accumulated evidence has suggested that there is a close association between preoperative neutrophilto-lymphocyte ratio(NLR)and prognosis of various malignant tumors.However,the relationship between NLR and surgically resectable urinary cancers remains contradictory.Therefore,we performed this systematic review and meta-analysis to explore whether preoperative NLR could predict the prognosis of surgically resectable urinary cancers.Methods After searching the Embase,PubMed/MEDLINE and Cochrane databases and screening the articles,we finally included 25 studies involving 15950 patients.Hazard ratios(HRs)and their 95%confidence intervals(CIs)were extracted to assess the association between preoperative NLR and the overall survival(OS)and cancerspecific survival(CSS)of surgically resectable urinary cancers.Results The pooled results revealed that an elevated preoperative NLR could predict a worse OS(HR=1.40,95%CI:1.26–1.54,P<0.001)and CSS(HR=1.43,95%CI:1.27–1.59,P<0.001)in urinary cancers.In addition,our analyses also suggested that high preoperative NLR was associated with worse prognosis in renal cell carcinoma(OS:HR=2.06,95%CI:1.54–2.76,P=0.131;CSS:HR=2.46,95%CI:1.46–4.16,P=0.178),upper tract urothelial carcinoma(OS:HR=1.91,95%CI:1.50–2.42,P=0.616;CSS:HR=1.84,95%CI:1.41–2.39,P=0.001),bladder cancer(OS:HR=1.09,95%CI:1.02–1.17,P<0.001;CSS:HR=1.05,95%CI:1.01–1.09,P=0.163)and prostate cancer(OS:HR=1.69,95%CI:1.19–2.41,P=0.714).Regardless of the participants’race or the cutoff value of the preoperative NLR,the results remained valid.Conclusion Elevated preoperative NLR could predict a worse prognosis in surgically resectable urinary cancers,namely,renal cell carcinoma,bladder cancer,prostate cancer and upper tract urothelial carcinoma. | Zhan Wang Xu Wang Wenda Wang Guoyang Zheng Hao Guo Yushi Zhang | 2020 | Chinese Medical Sciences Journal2020，35，3： | 2 |
| 19 | Terminal sulfur atoms formation via defect engineering strategy to promote the conversion of lithium polysulfides显示文摘The defect engineering shows great potential in boosting the conversion of lithium polysulfides intermediates for high energy density lithium-sulfur batteries(LSBs),yet the catalytic mechanisms remain unclear.Herein,the oxygen-defective Li_(4)Ti_(5)O_(12)-xhollow microspheres uniformly encapsulated by N-doped carbon layer(OD-LTO@NC)is delicately designed as an intrinsically polar inorganic sulfur host for the research on the catalytic mechanism.Theoretical simulations have demonstrated that the existence of oxygen deficiencies enhances the adsorption capability of spinel Li_(4)Ti_(5)O_(12)towards soluble lithium polysulfides.Some-S-S-bonds of the Li2S6on the defective Li_(4)Ti_(5)O_(12)surface are fractured by the strong adsorption force,which allows the inert bridging sulfur atoms to be converted into the susceptible terminal sulfur atoms,and reduces the activation energy of the polysulfide conversion in some degree.In addition,with the N-doped carbon layer,secondary hollow microspheres architecture built with primary ultrathin nanosheets provide a large amount of void space and active sites for sulfur storage,adsorption and conversion.The as-designed sulfur host exhibits a remarkable rate capability of 547 m Ah g^(-1)at 4C(1 C=1675 m A g^(-1))and an outstanding long-term cyclability(519 m Ah g^(-1)after 1000 cycles at 3 C).Besides,a high specific capacity of 832 m Ah g^(-1)is delivered even after 100 cycles under a high sulfur mass loading of 3.2 mg cm^(-2),indicating its superior electrochemical performances.This work not only provides a strong proof for the application of oxygen defect in the adsorption and catalytic conversion of lithium polysulfides,but offers a promising avenue to achieve high performance LSBs with the material design concept of incorporating oxygen-deficient spinel structure with hierarchical hollow frameworks. | Yuanchang Li Wenda Li Xiujuan Yan Zhenfang Zhou Xiaosong Guo Jing Liu Changming Mao Zhonghua Zhang Guicun Li | 2022 | Journal of Materials Science & Technology2022，，8： | 2 |
| 20 | Transient tribo-dynamic analysis of crosshead slipper in lowspeed marine diesel engines during engine startup显示文摘A crosshead slipper-guide system,which bears a significant thrust force,is an essential friction pair in low-speed marine diesel engines.Owing to the low moving speed of the crosshead slipper during engine startup,it is difficult to form good hydrodynamic lubrication between the crosshead slipper and guide.Therefore,a detailed analysis of the crosshead slipper during engine startup is needed.In this study,a new transient tribo-dynamic model for a crosshead slipper during the engine startup process is presented.The model consists of a mixed lubrication model of the crosshead slipper-guide and dynamic models of the piston assembly,crosshead assembly,connecting rod,and crankshaft.The tribo-dynamic performances of the crosshead slipper during startup and under the rated conditions were simulated and compared.The results show that the tribo-dynamics of the crosshead slipper during the startup process are significantly different from those under the rated conditions.Some measures beneficial for the low friction of a crosshead slipper-guide under the rated conditions may significantly increase the friction loss of the crosshead slipper-guide system during the startup process. | Rui LI Xianghui MENG Jingjin DONG Wenda LI | 2021 | Friction2021，9，6： | 2 |
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