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105篇 您的检索式:作者名="Shichao LI"
    题名 作者 年代 出处 被引量
1Farmland marginalization in the mountainous areas: Characteristics, influencing factors and policy implications显示文摘基于 SPOT-5 图象, 1:1 百万张地志的地图,到森林工程和重庆森林工程的回来的农田的地图,聚会和经济统计,等等,这份报纸识别影响农田 marginalization 的特征和因素。结果出现了:(1 ) 在 20022012 期间,农田 marginalization 的率是 16.18% ,它主要在北 Qiyao 山的高区域和南部的 Qiyao 山的中等高度的区域被发现。并且这农田 marginalization 将增加,与农村劳动者的 non-agriculturalization 和留下的劳动者的老化联系了。(2 ) 举起,来自村庄的距离半径和道路连接在农田 marginalization 上有大影响。农田 marginalization 率随举起的增加显示出一个增加的趋势,并且 60.88% 全部的农田 marginalization 区域在海水平上面在比 1000 m 大的高度被发现。marginalization 趋势也从分发网络与斜坡和距离增加。(3 ) 农田区域每劳动者和农场劳动者的平均年龄是驾驶农田 marginalization 的主要因素。农田转移和小农业机械集合关于管理和生产率效率影响农田 marginalization。(4 ) 有 comparative-disadvantage-dominated marginalization 的农田说明了 55.32% 全部的农田 marginalization 区域,由地点主导的 marginalization (33.80%) 列在后面。(5 ) 根据每种真实状况的细节,不同政策被建议减轻 marginalization。一条连续 marginalization 政策将在地面主导的 marginalization 鼓励农田的回来到森林。一条 anti-marginalization 政策被建议创造新农村住所并且改进农村道路系统抵抗地面主导的 marginalization。并且另一条 anti-marginalization 政策被计划改进管理并且为 comparative-disadvantage-dominated marginalization 微机械化。一个新想法被开发与调查信息集成高分辨率遥感和统计数据在多山的区域识别陆地 marginalization 和它的驱动力。SHAO Jing'an ZHANG Shichao LI Xiubin 2015Journal of Geographical Sciences2015,25,6:22
2Effect of different concentrations of surfactant on the wettability of coal by molecular dynamics simulation显示文摘Anionic surfactant sodium dodecyl benzene sulfonate(SDBS)at varying concentrations was selected to investigate the influence on the wettability of Zhaozhuang Coal by molecular dynamics simulation.Six groups of water/surfactant/coal systems with different concentrations were constructed.The influence of surfactant with different concentrations on the wettability of coal was concluded by analyzing various properties from the energetic behaviors to the dynamic characteristics.The results show that the interfacial tension decreases sharply and then rises slowly with the increase of SDBS surfactant concentration,obtaining that surfactants can obviously reduce the interfacial tension.The surfactant molecules could be detected at the water/coal interface through analyzing the system’s relative concentration distribution.In addition,the difference in the wettability of surfactants on coal surfaces is caused by the spatial distribution differences of alkyl chains and the benzene ring of the surfactant molecules.And the negative interaction energy between SDBS and the coal surface indicates that adsorption process is spontaneous.Furthermore,it is of great practical significance for improving the dust reduction effect and reducing the disaster of coal dust by exploring the effects of surfactant molecules on the wettability of coal.Junqing Meng Feifei Yin Shichao Li Ruquan Zhong Zeyuan Sheng Baisheng Nie 2019International Journal of Mining Science and Technology2019,29,4:20
3Excellent Structure-Based Multifunction of Morpho Butterfly Wings: A Review显示文摘Shichao Niu Bo Li Zhengzhi Mu Meng Yang Junqiu Zhang Zhiwu Han Luquan Ren 2015Journal of Bionic Engineering2015,12,2:19
4Flexible design of gradient multilayer nanofilms coated on carbon nanofibers by atomic layer deposition for enhanced microwave absorption performance显示文摘阻抗匹配为完成高效率的微波吸收器是重要的。象纯金属和碳 nanomaterials 那样的绝缘的损失材料的高传导性通常由于在吸收器和表情之间匹配的低阻抗导致差的吸收。因为他们的吸引人的特征,碳 nanostructures 很包括低密度,高表面区域,和好稳定性为高效率的吸收正在答应候选人。此处,新策略被建议改进作为一个例子用 electrospun 碳 nanofibers 绝缘的损失材料匹配的阻抗。碳 nanofibers 与明确地设计的坡度是涂的有逐渐地增加 electroconductibility 的多层的 nanofilms 由与不同艾尔 2 O 3 内容(偶氮) 旁边原子层免职。也就是,坡度 nanofilms 由绝缘的电影的五层组成纯艾尔 2 O 3, 偶氮(5:1,到艾尔 2 O 3), 纯 ZnO,偶氮(10:1 ) ,并且偶氮(20:1 ) 。万用的坡度电影用作中间的层调节在空气和碳 nanofiber 表面之间匹配的阻抗。因此,与讲道理地选择的厚度的电影显著地展出的坡度涂的碳 nanofibers 提高了微波吸收性能,和最佳的思考损失活动范围在有仅仅 1.8 公里的厚度的 16.2 GHz 的 58.5 dB。这个工作能进一步帮助理解阻抗匹配到微波吸收的贡献。我们的策略是一般的并且能被使用在新窗户中在另外的 fields.OpenShichao Zhao Lili Yan Xiaodong Tian Yequn Liu Chaoqiu Chen Yunqin Li Jiankang Zhang Yan Song Yong Qin 2018Nano Research2018,11,1:8
5Phytoplankton composition and its ecological effect in subsurface cold pool of the northern Bering Sea in summer as revealed by HPLC derived pigment signatures显示文摘CHEMTAX analysis of high-performance liquid chromatography(HPLC) pigment was conducted to study phytoplankton community structure in the northern Bering Sea shelf, where a seasonal subsurface cold pool emerges. The results showed that fucoxanthin(Fuco) and chlorophyll a(Chl a) were the most abundant diagnostic pigments, with the integrated water column values ranging from 141 to 2 160 μg/m2 and 477 to 5 535 μg/m2, respectively. Moreover, a diatom bloom was identified at Sta. BB06 with the standing stock of Fuco up to 9 214 μg/m3. The results of CHEMTAX suggested that the phytoplankton community in the northern Bering Sea shelf was dominated by diatoms and chrysophytes with an average relative contribution to Chl a of 80% and 12%, respectively, followed by chlorophytes, dinoflagellates, and cryptophytes. Diatoms were the absolutely dominant algae in the subsurface cold pool with a relative contribution exceeding 90%, while the contribution of chrysophytes was generally higher in oligotrophic upper water. Additionally, the presence of a cold pool would tend to favor accumulation of diatom biomass and a bloom that occurred beneath the halocline would be beneficial to organic matter sinks, which suggests that a large part of the phytoplankton biomass would settle to the seabed and support a rich benthic biomass.ZHUANG Yanpei JIN Haiyan LI Hongliang CHEN Jianfang WANG Bin CHEN Fajin BAI Youcheng LU Yong TIAN Shichao 2014Acta Oceanologica Sinica2014,33,6:7
6Application of deep learning in ecological resource research:Theories, methods, and challenges显示文摘Ecological resources are an important material foundation for the survival,development,and self-realization of human beings.In-depth and comprehensive research and understanding of ecological resources are beneficial for the sustainable development of human society.Advances in observation technology have improved the ability to acquire long-term,cross-scale,massive,heterogeneous,and multi-source data.Ecological resource research is entering a new era driven by big data.Traditional statistical learning and machine learning algorithms have problems with saturation in dealing with big data.Deep learning is a method for automatically extracting complex high-dimensional nonlinear features,which is increasingly used for scientific and industrial data processing because of its ability to avoid saturation with big data.To promote the application of deep learning in the field of ecological resource research,here,we first introduce the relationship between deep learning theory and research on ecological resources,common tools,and datasets.Second,applications of deep learning in classification and recognition,detection and localization,semantic segmentation,instance segmentation,and graph neural network in typical spatial discrete data are presented through three cases:species classification,crop breeding,and vegetation mapping.Finally,challenges and opportunities for the application of deep learning in ecological resource research in the era of big data are summarized by considering the characteristics of ecological resource data and the development status of deep learning.It is anticipated that the cooperation and training of cross-disciplinary talents may promote the standardization and sharing of ecological resource data,improve the universality and interpretability of algorithms,and enrich applications with the development of hardware.Qinghua GUO Shichao JIN Min LI Qiuli YANG Kexin XU Yuanzhen JU Jing ZHANG Jing XUAN Jin LIU Yanjun SU Qiang XU Yu LIU 2020Science China Earth Sciences2020,63,10:7
7Catalytic performance of hierarchical H-ZSM-5/MCM-41 for methanol dehydration to dimethyl ether显示文摘Micro-mesoporous composite molecular sieves H-ZSM-5/MCM-41 were prepared by the hydrothermal technique with alkali-treated H-ZSM-5zeolite as the source and characterized by scanning electron microscopy,transmission electron microscopy,energy dispersive spectroscopy,X-ray diffraction,N2 adsorption-desorption measurement and NH3 temperature-programmed desorption.The catalytic performances for the methanol dehydration to dimethyl ether over H-ZSM-5/MCM-41 were evaluated.Among these catalysts,H-ZSM-5/MCM-41 prepared with NaOH dosage (nNa/nSi) varying from 0.4 to 0.47 presented excellent catalytic activity with more than 80%methanol conversion and 100%dimethyl ether selectivity in a wide temperature range of 170—300℃,and H-ZSM-5/MCM-41 prepared with nNa/nSi=0.47 showed constant methanol conversion of about 88.7%,100% dimethyl ether selectivity and excellent lifetime at 220℃.The excellent catalytic performances were due to the highly active and uniform acidic sites and the hierarchical porosity in the micro-mesoporous composite molecular sieves.The catalytic mechanism of H-ZSM-5/MCM-41 for the methanol dehydration to dimethyl ether process was also discussed.Yu Sang Hongxiao Liu Shichao He Hansheng Li Qingze Jiao Qin Wu Kening Sun 2013Journal of Energy Chemistry2013,22,5:7
8A Quantitative Evaluation of Shale Gas Content in Different Occurrence States of the Longmaxi Formation: A New Insight from Well JY-A in the Fuling Shale Gas Field,Sichuan Basin显示文摘Comprehensive quantitative evaluation of shale gas content and the controlling factors in different occurrence states is of great significance for accurately assessing gas-bearing capacity and providing effective well-production strategies. A total of 122 core samples from well JY-A in the Fuling shale gas field were studied to reveal the characteristics of S_1 l shale,15 of which were selected to further predict the shale gas content in different occurrence states, which are dependent on geological factors in the thermal evolution process. Geological parameters were researched by a number of laboratory programs, and the factors influential in controlling shale gas content were extracted by both PCA and GRA methods and prediction models were confirmed by the BE method using SPSS software. Results reveal that the adsorbed gas content is mainly controlled by TOC, Ro, SSA, PD and pyrite content, and the free gas content is mainly controlled by S_2, quartz content, gas saturation and formation pressure for S_1 l in well JY-A. Three methods, including the on-site gas desorption method, the empirical formula method, and the multiple regression analysis method were used in combination to evaluate the shale gas capacity of well JY-A, all of which show that the overall shale gas content of well JY-A is in the range of 2.0–5.0 m^3/t and that the free gas ratio is about 50%, lower than that of well JY-1. Cause analysis further confirms the tectonics and preservation conditions of S_1 l in the geological processes, especially the influence of eastern boundary faults on well JY-A, as the fundamental reasons for the differences in shale gas enrichment in the Jiaoshiba area.TANG Ling SONG Yan LI Qianwen PANG Xiongqi JIANG Zhenxue LI Zhuo TANG Xianglu YU Hailong SUN Yue FAN Shichao ZHU Lin 2019Acta Geologica Sinica(English Edition)2019,93,2:7
9Geochemical characteristics of the Permian Changxing Formation reef dolomites,northeastern Sichuan Basin,China显示文摘The recent discovery of deep and ultra-deep gas reservoirs in the Permian Changxing Formation reefs, northeastern Sichuan Basin is a significant development in marine carbonate oil & gas exploration in China. Reef dolomites and their origins have been major research topics for sedimentologists and oil & gas geologists. The petrography, trace element and isotope geochemistry of the reef dolomites indicated that the dolomites are characterized by low Sr and Mn contents, relatively low Fe contents, very similar δ 13 C and δ 18 O values and very different 87 Sr/ 86 Sr ratios. Although the calculated results of the fluid mixing suggested that a mixture with 85%-95% meteoric water and 5%-15% seawater seemed to be the dolomitizing fluids of the reef dolomites, the low Mn contents, relatively low Fe contents, high δ 13 C values and high homogenization temperatures of the dolomites did not support that there were large proportions of meteoric water in the dolomitization process, and the 87 Sr/ 86 Sr ratios which were close to coeval seawater also did not support the possibility of the mixture of deep-burial circulated fluids from clastic rocks. High temperature deep-burial circulated seawater with low Mn and Fe contents, high Sr content and high δ 13 C values from the dissolution of widely distributed Triassic evaporites during the burial diagenetic processes (including dehydration of water-bearing evaporites) could have been the dolomitizing fluids of the reef dolomites.Hu Zuowei Huang Sijing Li Zhiming Zhang Yingying Xu Ershe Qi Shichao 2013Petroleum Science2013,10,1:6
10Exploring Seasonal and Circadian Rhythms in Structural Traits of Field Maize from LiDAR Time Series显示文摘Plant growth rhythm in structural traits is important for better understanding plant response to the ever-changing environment.Terrestrial laser scanning(TLS)is a well-suited tool to study structural rhythm under field conditions.Recent studies have used TLS to describe the structural rhythm of trees,but no consistent patterns have been drawn.Meanwhile,whether TLS can capture structural rhythm in crops is unclear.Here,we aim to explore the seasonal and circadian rhythms in maize structural traits at both the plant and leaf levels from time-series TLS.The seasonal rhythm was studied using TLS data collected at four key growth periods,including jointing,bell-mouthed,heading,and maturity periods.Circadian rhythms were explored by using TLS data acquired around every 2 hours in a whole day under standard and cold stress conditions.Results showed that TLS can quantify the seasonal and circadian rhythm in structural traits at both plant and leaf levels.(1)Leaf inclination angle decreased significantly between the jointing stage and bell-mouthed stage.Leaf azimuth was stable after the jointing stage.(2)Some individual-level structural rhythms(e.g.,azimuth and projected leaf area/PLA)were consistent with leaf-level structural rhythms.(3)The circadian rhythms of some traits(e.g.,PLA)were not consistent under standard and cold stress conditions.(4)Environmental factors showed better correlations with leaf traits under cold stress than standard conditions.Temperature was the most important factor that significantly correlated with all leaf traits except leaf azimuth.This study highlights the potential of time-series TLS in studying outdoor agricultural chronobiology.Shichao Jin Yanjun Su Yongguang Zhang Shilin Song Qing Li Zhonghua Liu Qin Ma Yan Ge LingLi Liu Yanfeng Ding Frédéric Baret Qinghua Guo 2021Plant Phenomics2021,3,1:5
11The cotton WRKY transcription factor GhWRKY70 negatively regulates the defense response against Verticillium dahliae显示文摘WRKY transcription factors (TFs) play important roles in the regulation of biotic and abiotic stresses. However, the functions of most WRKY TFs in upland cotton (Gossypium hirsutum) are still unknown. In this study, we functionally identified a group Ⅲ WRKY transcription factor, GhWRKY70, in upland cotton. Reverse transcription-quantitative PCR analysis showed that GhWRKY70 expression was induced by Verticillium dahliae, salicylic acid (SA) and methyl jasmonate. Virus-induced gene silencing of GhWRKY70 increased the resistance of cotton to V. dahliae. Specifically, jasmonic acid (JA) response-associated genes were upregulated and SA-related genes were downregulated in GhWRKY70-silenced cotton plants. Overexpression of GhWRKY70 reduced tolerance to V. dahliae in Arabidopsis thaliana. Transgenic Arabidopsis plants showed increased expression of SA-associated genes and reduced expression of JA response-associated genes. These results suggest that GhWRKY70 negatively regulates tolerance to V. dahliae in at least two ways: (ⅰ) by upregulating the expression of SA-associated genes and (ⅱ) by reducing the expression of JA-associated genes.Xianpeng Xiong Shichao Sun Yanjun Li Xinyu Zhang Jie Sun Fei Xue 2019The Crop Journal2019,7,3:5
12Designing safer lithium-based batteries with nonflammable electrolytes:A review显示文摘Lithium-based batteries have had a profound impact on modern society through their extensive use in portable electronic devices,electric vehicles,and energy storage systems.However,battery safety issues such as thermal runaway,fire,and explosion hinder their practical application,especially for using metal anode.These problems are closely related to the high flammability of conventional electrolytes and have prompted the study of flameretardant and nonflammable electrolytes.Here,we review the recent research on nonflammable electrolytes used in lithium-based batteries,including phosphates,fluorides,fluorinated phosphazenes,ionic liquids,deep eutectic solvents,aqueous electrolytes,and solid-state electrolytes.Their flame-retardant mechanisms and efficiency are discussed,as well as their influence on cell electrochemical performance.We conclude with a summary of future prospects for the design of nonflammable electrolytes and the construction of safer lithium-based batteries.Shichao Zhang Siyuan Li Yingying Lu 2021eScience2021,1,2:5
13Tectonic Evolution of Southeast Central Asian Orogenic Belt: Evidence from Geochronological Data and Paleontology of the Early Paleozoic Deposits in Inner Mongolia显示文摘In this study, we present detrital zircon U-Pb dating and paleontological data for the newly identified Ayadeng Formation in the northern margin of the North China Block(NCB) and Xibiehe Formation(molasse) in the Bainaimiao arc belt(BAB), which could provide strong evidence indicating the affinity of the BAB and the evolution of the southeast Central Asian orogenic belt(CAOB). Zircon U-Pb data of siltstone samples and paleontological data indicate the Ayadeng Formation dates back to the Early Ordovician. Although its location is near the NCB, its zircon age spectra and paleontology share a closer affinity with those of Tarim and NE Gondwana, as the U-Pb data suggest an age range of 490–2 192 Ma(peak age=629, 788, 965 and 1 935 Ma), and similar gastropod fossils are found in Tarim and NE Gondwana. The U-Pb ages of meta-sandstone samples in the Xuniwusu Formation indicate a shared inheritance with the Ayadeng Formation(before 440 Ma), and the U-Pb ages of sandstone samples in the Xibiehe Formation are concentrated, with age peaks centered at ca. 420 Ma. Fossil corals occur in these two formations, and their age components also indicate a collisional setting. Therefore, it is speculated that the BAB drifted away from Tarim or NE Gondwana during the Ordovician and became attached to northern NCB between 440–420 Ma as an exotic terrane. During the Early Paleozoic, there may have occurred a collision between an arc and a continental block.Shijie Wang Shichao Li Wenjie Li Zhongyuan Xu Jinfeng Zhang Changhai Li Qiang Shi Yang Liu Wenlong Wang Qingbin Guan 2020Journal of Earth Science2020,31,4:4
14Simultaneous Prediction of Wheat Yield and Grain Protein Content Using Multitask Deep Learning from Time-Series Proximal Sensing显示文摘Wheat yield and grain protein content(GPC)are two main optimization targets for breeding and cultivation.Remote sensing provides nondestructive and early predictions of yield and GPC,respectively.However,whether it is possible to simultaneously predict yield and GPC in one model and the accuracy and influencing factors are still unclear.In this study,we made a systematic comparison of different deep learning models in terms of data fusion,time-series feature extraction,and multitask learning.The results showed that time-series data fusion significantly improved yield and GPC prediction accuracy with R 2 values of 0.817 and 0.809.Zhuangzhuang Sun Qing Li Shichao Jin Yunlin Song Shan Xu Xiao Wang Jian Cai Qin Zhou Yan Ge Ruinan Zhang Jingrong Zang Dong Jiang 2022Plant Phenomics2022,4,1:4
15Energy efficient downlink MIMO transmission with linear precoding显示文摘Energy efficiency (EE) is becoming increasingly important for wireless cellular networks. This paper addresses EE optimization problems in downlink multiuser MIMO systems with linear precoding. Referring to different active transmit/receive antenna sets and transmission schemes as different modes, we propose a joint bandwidth/power optimization and mode switching scheme to maximize EE. With a specific mode, we prove that the optimal bandwidth and transmit power is either full transmit power or full bandwidth. After deriving the optimal bandwidth and transmit power, we further propose mode switching to select the mode with optimal EE. Since the optimal mode switching, i.e. exhaustive search, is too complex to implement, an alternative heuristic method is developed to decrease the complexity through reducing the search size and avoiding the EE calculation during each search. Through simulations, we demonstrate that the proposed methods can significantly improve EE and the performance is similar to the optimal exhaustive search.XU Jie LI ShiChao QIU Ling SLIMANE Ben S. YU ChengWen 2013Science China(Information Sciences)2013,56,2:4
16Angle-dependent discoloration structures in wing scales of Morpho menelaus butterfly显示文摘The Morpho butterfly is famous for its typical structural color and has increasingly attracted the interest of scholars in a wide variety of research fields. Herein, it was found that the color of Morpho menelaus butterfly wings is not only structure-based but also viewing-angle-dependent. Firstly, the discoloration effect of this typical butterfly was confirmed by a series of experiments. Then, the general form, arrangements, and geometrical dimensions of the scales were observed using a stereomicroscope. Scanning electron microscopy was also used to examine the two-dimensional morphologies and structures of a single scale. Afterwards, one model with the optimized three-dimensional profile of the structure was described using Pro-engineer software. The associate model was then analyzed to reconstruct the process between the incident light and the model surface. Finally, the mechanism of the angle-dependent discoloration effect was analyzed by theoretical calculation and optical simulation. Different light propagation paths and the length of the incident light at different angles caused destructive or constructive interference between the light reflected from the different layers. The different spectra of the reflected light make the wings appear with different structural colors, thereby endowing the angle-dependent discoloration effect. The consistency of the calculation and simulation results confirms that these structures possess an excellent angle-dependent discoloration effect. This functional 'biomimetic structure' would not only be of great scientific interest but could also have a great impact in a wide range of applications such as reflective displays, credit card security, and military stealth technology.NIU ShiChao LI Bo YE JunFeng MU ZhengZhi ZHANG JunQiu LIU Yan HAN ZhiWu 2016Science China(Technological Sciences)2016,59,5:4
17Tailoring active color rendering and multiband photodetection in a vanadium-dioxide-based metamaterial absorber显示文摘Metamaterials have demonstrated exotic electromagnetic properties, which offer a good platform for realizing light absorption, photodetection, filtering, and so on. However, broadband multifunctional metamaterial absorbers are restricted in cascaded structures. Here, broadband multifunctional properties were realized by introducing vanadium dioxide into a metamaterial absorber. Through the modified design and highly efficient utilization of multiple resonant modes, both plasmonic tunable color filters and near-infrared photodetectors can be simultaneously achieved by this construction. Meanwhile, active color and a photodetection band in the near-infrared range can become tunable with the insulating–metallic transition of vanadium dioxide. Thus, the variations of rendering colors could correspondingly indicate shifts of the near-infrared photodetection bands. This method theoretically confirms the feasibility of designing multifunctional devices via a vanadium-dioxide-based metamaterial absorber, which holds great promise for future versatile utilization of multiple physical mechanisms to achieve numerous functionalities in a simple nanostructure or device.SHICHAO SONG XIAOLIANG MA MINGBO PU XIONG LI YINGHUI GUO PING GAO XIANGANG LUO 2018Photonics Research2018,6,6:4
18m6A RNA methylation-mediated HNF3γreduction renders hepatocellular carcinoma dedifferentiation and sorafenib resistance显示文摘Hepatocyte nuclear factor 3γ(HNF3γ)is a hepatocyte nuclear factor,but its role and clinical significance in hepatocellular carcinoma(HCC)remain unclear.Herein,we report that HNF3γexpression is downregulated in patient HCC and inversely correlated with HCC malignancy and patient survival.Moreover,our data suggested that the HNF3γreduction in HCC could be mediated by METTL14-dependent m6A methylation of HNF3γmRNA.HNF3γexpression was increased during hepatic differentiation and decreased in dedifferentiated HCC cells.Interestingly,HNF3γdelivery promoted differentiation of not only HCC cells but also liver CSCs,which led to suppression of HCC growth.Mechanistic analysis suggested an HNF3γ-centered regulatory network that includes essential liver differentiation-associated transcription factors and functional molecules,which could synergistically facilitate HCC cell differentiation.More importantly,enforced HNF3γexpression sensitized HCC cells to sorafenib-induced growth inhibition and cell apoptosis through transactivation of OATP1B1 and OATP1B3 expression,which are major membrane transporters for sorafenib uptake.Clinical investigation showed that patient-derived HCC xenografts with high HNF3γexpression exhibited a sorafenib response and patients with high HCC HNF3γlevels benefited from sorafenib therapy.Together,these results suggest that HNF3γplays an essential role in HCC differentiation and may serve as a therapeutic target and predictor of sorafenib benefit in patients.Tengfei Zhou Shichao Li Daimin Xiang Junyu Liu Wen Sun Xiuliang Cui Beifang Ning Xiao Li Zhuo Cheng Weiqi Jiang Cheng Zhang Xijun Liang Liang Li Xin Cheng Liu Hui Hongyang Wang Jin Ding 2020Signal Transduction and Targeted Therapy2020,5,1:4
19Solid-state lithium batteries: Safety and prospects显示文摘Solid-state lithium batteries are flourishing due to their excellent potential energy density.Substantial efforts have been made to improve their electrochemical performance by increasing the conductivity of solid-state electrolytes(SEs)and designing a compatible battery configuration.The safety of a solid lithium battery has generally been taken for granted due to the nonflammability and strength of SEs.However,recent results have shown the release of dangerous gases and intense heat due to the formation of lithium dendrites,indicating the safety of solid-state lithium batteries may have been overestimated.In this review,we introduce a safety evaluation methodology,then focus on the garnet Li_(7)La_(3)Zr_(2)O_(12)(LLZO)and sulfide-based SEs,summarizing their structure,conductivity,compatibility with a lithium metal anode,electrochemical/chemical stability,and mechanical/thermal stability,which correlate closely with battery safety.We also evaluate the safety of all-solid-state lithium batteries,then conclude by discussing future avenues for improving the safety of SE-based batteries.Yong Guo Shichao Wu Yan-Bing He Feiyu Kang Liquan Chen Hong Li Quan-Hong Yang 2022eScience2022,2,2:4
20Semisolid-rolling and annealing process of woven carbon fibers reinforced Al-matrix composites显示文摘Semisolid-rolling method was successfully developed to prepare the Ni-coated woven carbon fibers reinforced Al-matrix composite. Due to the appropriate matrix flowability and rolling pressure, the Al-matrix could infiltrate into the woven fibers sufficiently and attach to the reinforcements closely forming a smooth interface. The rolling speed of 4 rad/min offered a subtle equilibrium between the heat transfer and the material deformation. The covering matrix should be controlled at semisolid state to provide a better infiltration behavior and a protective effect on the carbon fibers. With the addition of fibers, an improvement for more than 25% was obtained in the bending strength of the materials. Furthermore, the woven carbon fibers could strengthen the composite in multiple directions, rather than only along the fiber longitudinal directions. The annealing process promoted the Ni coating to react with and to diffuse into the matrix, resulted in an obvious increase of the bending strength.Junjia Zhang Shichao Liu Yiping Lu Li Jiang Yubo Zhang Tingju Li 2017Journal of Materials Science & Technology2017,33,7:3
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