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21篇 您的检索式:作者名="Shiyang Lu"
    题名 作者 年代 出处 被引量
1Spatial Heterogeneity of Soil Mineral Oxide Components in Depression Between Karst Hills,Southwest China显示文摘In karst regions,the spatial heterogeneity of soil mineral oxides and environmental variables is still not clear.We investigated the spatial heterogeneity of SiO2,Al2O3,Fe2O3,CaO,MgO,P2O5,K2O,and MnO contents in the soils of slope land,plantation forest,secondary forest,and primary forest,as well as their relationships with environmental variables in a karst region of Southwest China.Geostatistics,principal component analysis(PCA),and canonical correlation analysis(CCA)were applied to analyze the field data.The results show that SiO2was the predominant mineral in the soils(45.02%–67.33%),followed by Al2O3and Fe2O3.Most soil mineral oxide components had a strong spatial dependence,except for CaO,MgO,and P2O5in the plantation forest,MgO and P2O5in the secondary forest,and CaO in the slope land.Dimensionality reduction in PCA was not appropriate due to the strong spatial heterogeneity in the ecosystems.Soil mineral oxide components,the main factors in all ecosystems,had greater influences on vegetation than those of conventional soil properties.There were close relationships between soil mineral oxide components and vegetation,topography,and conventional soil properties.Mineral oxide components affected species diversity,organic matter and nitrogen levels.DU Hu WANG Kelin PENG Wanxia ZENG Fuping SONG Tongqing ZHANG Hao LU Shiyang 2014Chinese Geographical Science2014,24,2:9
2Integrated Control of Agricultural Non-point Source Pollution to Provide Safe and Healthy Drinking Water for Rural Areas显示文摘Agricultural non-point source pollution has become the main part of water pollution prevention and control in China. This paper made a brief introduction to the causes and hazards of agricultural non-point source pollution and the current situation of agricultural non-point source pollution prevention and control in China. In view of the serious agricultural non-point source pollution in water environment of Guangxi and the difference in quality of drinking water between urban and rural areas,it came up with recommendations for strengthening agricultural non-point source pollution prevention and control from scientific distribution,linked operation and maintenance,popular science education,and legal system construction,to guarantee safe and healthy drinking water in rural areas.Qi LIANG Zhen ZHANG Yongxian LIU Jinghao DAI Ziju JIANG Liping PAN Shiyang LU Xiu LAN 2017Asian Agricultural Research2017,9,9:4
3Advances in Studies on Interaction between Selenium and Heavy Metal Cadmium显示文摘Selenium is an essential functional element of the human body,and the issue of selenium accompanying heavy metals is receiving much concern.This paper expounded the form of existence of selenium and cadmium in soil and influencing factors of their bioavailability,and further elaborated the interaction between selenium and cadmium.On the basis,it provided references for further studies on the interaction between selenium and cadmium,and provided basis for establishing selenium-enriched barrier technology for crops.Liping PAN Yongxian LIU Yanfei HUANG Mengling NONG Shiyang LU Jinping CHEN Yuying ZHAO Liumei XIONG Xiu LAN Kebing LI 2017Asian Agricultural Research2017,9,8:3
4Integration of high-performance spin-orbit torque MRAM devices by 200-mm-wafer manufacturing platform显示文摘We demonstrate in-plane field-free-switching spin-orbit torque(SOT)magnetic tunnel junction(MTJ)devices that are capable of low switching current density,fast speed,high reliability,and,most importantly,manufactured uniformly by the 200-mm-wafer platform.The performance of the devices is systematically studied,including their magnetic properties,switch-ing behaviors,endurance and data retention.The successful integration of SOT devices within the 200-mm-wafer manufactur-ing platform provides a feasible way to industrialize SOT MRAMs.It is expected to obtain excellent performance of the devices by further optimizing the MTJ film stacks and the corresponding fabrication processes in the future.Hongchao Zhang Xiangyue Ma Chuanpeng Jiang Jialiang Yin Shuqin Lyu Shiyang Lu Xiantao Shang Bowen Man Cong Zhang Dandan Li Shuhui Li Wenjing Chen Hongxi Liu Gefei Wang Kaihua Cao Zhaohao Wang Weisheng Zhao 2022Journal of Semiconductors2022,43,10:2
5Current Development and Prospects of Selenium-enriched Moringa oleifera Industry in Guangxi显示文摘Due to its unique economic value,Moringa oleifera Lam. has become a tree species with great development potential. This paper firstly introduced the value of development and utilization of M. oleifera in nutrition,medicinal,industrial,greening,etc. Then,focusing on the current development status of M. oleifera industry in Guangxi and combining Guangxi's resource conditions,it came up with recommendations for the comprehensive development and rational utilization of M. oleifera. Besides,it made a prediction of the prospect of Se-enriched M.oleifera industry in Guangxi.Panxia LIANG Yongxian LIU Guoxin SHA Liping PAN Ying XING Qing LIAO Zepu JIANG Xiu LAN Jinping CHEN Shiyang LU 2018Asian Agricultural Research2018,10,6:2
6Taking the pulse of COVID-19:a spatiotemporal perspective显示文摘The sudden outbreak of the Coronavirus disease(COVID-19)swept across the world in early 2020,triggering the lockdowns of several billion people across many countries,including China,Spain,India,the U.K.,Italy,France,Germany,Brazil,Russia,and the U.S.The transmission of the virus accelerated rapidly with the most confirmed cases in the U.S.,India,Russia,and Brazil.In response to this national and global emergency,the NSF Spatiotemporal Innovation Center brought together a taskforce of international researchers and assembled implementation strategies to rapidly respond to this crisis,for supporting research,saving lives,and protecting the health of global citizens.This perspective paper presents our collective view on the global health emergency and our effort in collecting,analyzing,and sharing relevant data on global policy and government responses,human mobility,environmental impact,socioeconomical impact;in developing research capabilities and mitigation measures with global scientists,promoting collaborative research on outbreak dynamics,and reflecting on the dynamic responses from human societies.Chaowei Yang Dexuan Sha Qian Liu Yun Li Hai Lan Weihe Wendy Guan Tao Hu Zhenlong Li Zhiran Zhang John Hoot Thompson Zifu Wang David Wong Shiyang Ruan Manzhu Yu Douglas Richardson Luyao Zhang Ruizhi Hou You Zhoua Cheng Zhong Yifei Tian Fayez Beaini Kyla Carte Colin Flynn Wei Liu Dieter Pfoser Shuming Bao Mei Li Haoyuan Zhang Chunbo Liu Jie Jiang Shihong Du Liang Zhao Mingyue Lu Lin Li Huan Zhou Andrew Ding 2020International Journal of Digital Earth2020,13,10:2
7Coupling magnetic particles with flocculants to enhance demulsification and separation of waste cutting emulsion for engineering applications显示文摘Magnetic particles were coupled with a flocculant to enhance the demulsification and separation of waste cutting emulsions.The optimal magnetic particle size and critical magnetic field conditions were investigated to achieve large-scale engineering application of magnetic demulsification separation for waste cutting emulsion treatment.The micro-scale magnetic particles were found to show comparable effects to nano-scale magnetic particles on enhancing the demulsification and separation of cutting emulsions,which are beneficial for broadening the selectivity of low-cost magnetic particles.The critical magnetic separation region was determined to be an area 40 mm from the magnetic field source.Compared to the flocculant demulsification,the magnetic demulsification separation exhibited a significant advantage in accelerating flocs-water separation by decreasing the separation time of flocs from 180-240 min to less than 15 min,compressing the flocs by reducing the floc volume ratio from 60%-90%to lower than 20%,and showing excellent adaptability to the variable properties of waste cutting emulsions.Coupled with the design of the magnetic disk separator,continuous demulsification separation of the waste cutting emulsion was achieved at 1.0 t/hr for at least 10 hr to obtain clear effluent with 81%chemical oxygen demand removal and 89%turbidity reduction.This study demonstrates the feasibility of applying magnetic demulsification separation to large-scale continuous treatment of waste emulsion.Moreover,it addresses the flocs-water separation problems that occur in practical flocculant demulsification engineering applications.Yongjiao Xiong Baoqiang Wu Xiangfeng Huang Chenlu Li Bin Lu Jia Liu Lijun Lu Shiyang Li Kaiming Peng 2021Journal of Environmental Sciences2021,33,7:2
8Distributed Feedback Lasers Based on Thiophene/PhenyleneCo-oligomer Single Crystals 显示文摘FANG Honghua DING Ran LU Shiyang 2012Adv Funct Mater2012,22,1:1
9Study on Extraction Method of Selenium-enriched Rice显示文摘[Objectives] The aims were to optimize the extraction process of selenoproteins from selenium-enriched rice in Guangxi and provide references for the intensive processing and comprehensive utilization of selenium protein resources. [Methods]Selenium-enriched rice was used as materials to extract selenoproteins by phosphate buffer extraction method and to optimize the extraction process of selenoproteins by using the orthogonal experiment. Proteins and selenium content was measured by Coomassie Brilliant Blue G-250 reagent and AFS( atomic fluorescence spectrometry) respectively. [Results] The most significant factor affecting extraction of rice Selenoproteins was extraction NaO H concentration,followed by the ratio of solid-liquid,temperature and then extraction time. The optimum extraction conditions of selenoproteins from rice were extraction temperature of 50 ℃,NaO H concentration of 0. 14 mol/L,extraction time of 5 h,and solid-liquid ratio of 1∶ 30. [Conclusions]The alkali extraction process optimized by orthogonal test could effectively improve the extraction rate of selenoproteins,and the optimized process parameters could be popularized and applied in practical production.Panxia LIANG Xiu LAN Yongxian LIU Liping PAN Mengling NONG Ying XING Qing LIAO Shiyang LU Jinping CHEN 2018Agricultural Biotechnology2018,7,3:1
10Mo-based perpendicularly magnetized thin films with low damping for fast and low-power consumption magnetic memory显示文摘Perpendicular magnetic anisotropy-based magnetic tunnel junctions(p-MTJs) with low Gilbert damping constant(α) are of particular interest for fast and low-power consumption magnetic random-access memory(MRAM). However, obtaining a faster switching speed and lower power consumption is still a big challenge. Herein, we report a Mo-based perpendicular double free layer structure with a low Gilbert damping constant of 0.02 relative to W-based films, as measured by time-resolved magnetooptical Kerr effect equipment. To show the influence of different film structures on the Gilbert damping constant, we measured the Mo-based single free layer. Thereafter, we deposited the full stacks with the Mo-based double free layer and obtained a high tunneling magnetoresistance of 136.3% and high thermal stability. The results of high-resolution transmission electron microscopy(HR-TEM) and energy-dispersive X-ray spectroscopy(EDS) showed that the Mo-based films had better crystallinity,sharper interfaces, and weaker diffusion than the W-based films and thus produced a weaker external contribution of the Gilbert damping constant. As a result of the weak spin-orbit coupling in the Mo-based structure, the intrinsic contribution of the Gilbert damping constant was also weak, thereby leading to the small Gilbert damping constant of the Mo-based stacks. In addition, the macro-spin simulation results demonstrated that the magnetization switching by the spin transfer torque of the Mo-based MTJs was faster than that of the W-based MTJs. These findings help to understand the mechanism behind the good performance of Mo-based p-MTJ films and show the great promise of these structures in low-power consumption MRAM or other spintronic devices.Houyi Cheng Boyu Zhang Yong Xu Shiyang Lu Yuxuan Yao Rui Xiao Kaihua Cao Yongshan Liu Zilu Wang Renyou Xu Danrong Xiong Yan Wang Helin Ma Sylvain Eimer Chao Zhao Weisheng Zhao 2022Science China(Physics,Mechanics & Astronomy)2022,65,8:0
11Ferrodifferentiation regulates neurodevelopment via ROS generation显示文摘Iron is important for life,and iron deficiency impairs development,but whether the iron level regulates neural differentiation remains elusive.In this study,with iron-regulatory proteins(IRPs)knockout embryonic stem cells(ESCs)that showed severe iron deficiency,we found that the Pax6-and Sox2-positive neuronal precursor cells and Tuj1 fibers in IRP1^(-/-)IRP2^(-/-)ESCs were significantly decreased after inducing neural differentiation.Consistently,in vivo study showed that the knockdown of IRP1 in IRP2^(-/-)fetal mice remarkably affected the differentiation of neuronal precursors and the migration of neurons.These findings suggest that low intracellular iron status significantly inhibits neurodifferentiation.When supplementing IRP1^(-/-)IRP2^(-/-)ESCs with iron,these ESCs could differentiate normally.Further investigations revealed that the underlying mechanism was associated with an increase in reactive oxygen species(ROS)production caused by the substantially low level of iron and the downregulation of iron-sulfur cluster protein ISCU,which,in turn,affected the proliferation and differentiation of stem cells.Thus,the appropriate amount of iron is crucial for maintaining normal neural differentiation that is termed ferrodifferentiation.Shiyang Chang Peina Wang Yingying Han Qiang Ma Zeyuan Liu Suijuan Zhong Yufeng Lu Ruiguo Chen Le Sun Qian Wu Guofen Gao Xiaoqun Wang Yan-Zhong Chang 2023Science China(Life Sciences)2023,66,8:0
12Effects of Several Passivating Agents on Improvement of Cd Polluted Soil显示文摘Clay minerals,phosphates,alkaline materials,organic materials are common improvers in the management of Cd polluted soil. This paper systematically summarized types of common soil improvers and their passivation mechanism of Cd in soil. It reviewed advances in researches of soil improvers. Besides,it introduced major problems in four common passivating agents for management of Cd polluted soil. Finally,according to different mechanism characteristics of passivating agents,it came up with some recommendations.Yuying ZHAO Yongxian LIU Zhilian FAN Yanfei HUANG Liping PAN Mengling NONG Shiyang LU Jinping CHEN Xiu LAN 2017Asian Agricultural Research2017,9,10:0
13Spin-orbit torque efficiency enhancement to tungsten-based SOT-MTJs by interface modification with an ultrathin MgO显示文摘Spin-orbital torque (SOT) based three-terminal magnetic tunnel junctions (MTJs) have attracted much interest as the next generation magnetic random-access memory (MRAM)key device both in the academy and the industry.This is because SOT-MTJs feature high endurance and fast switching speed,benefiting tremendously from the separation of read/write current paths and less incubation time during the write in contrast to the spin-transfer torque (STT) MTJs [1].Shiyang LU Xiaobai NING Hongchao ZHANG Sixi ZHEN Xiaofei FAN Danrong XIONG Dapeng ZHU Gefei WANG Hong-Xi LIU Kaihua CAO Weisheng ZHAO 2024Science China(Information Sciences)2024,67,1:0
14Casein kinase 2 modulates the spindle assembly checkpoint to orchestrate porcine oocyte meiotic progression显示文摘Background:CK2(casein kinase 2)is a serine/threonine-selective protein kinase that has been involved in a variety of cellular processes such as DNA repair,cell cycle control and circadian rhythm regulation.However,its functional roles in oocyte meiosis have not been fully determined.Results:We report that CK2 is essential for porcine oocyte meiotic maturation by regulating spindle assembly checkpoint(SAC).Immunostaining and immunoblotting analysis showed that CK2 was constantly expressed and located on the chromosomes during the entire oocyte meiotic maturation.Inhibition of CK2 activity by its selective inhibitor CX-4945 impaired the first polar body extrusion and arrested oocytes at M I stage,accompanied by the presence of BubR1 at kinetochores,indicative of activated SAC.In addition,we found that spindle/chromosome structure was disrupted in CK2-inhibited oocytes due to the weakened microtubule stability,which is a major cause resulting in the activation of SAC.Last,we found that the level DNA damage as assessed byγH2A.X staining was considerably elevated when CK2 was inhibited,suggesting that DNA damage might be another critical factor leading to the SAC activation and meiotic failure of oocytes.Conclusions:Our findings demonstrate that CK2 promotes the porcine oocyte maturation by ensuring normal spindle assembly and DNA damage repair.Xiayan ShiYang Yilong Miao Zhaokang Cui Yajuan Lu Changyin Zhou Yu Zhang Bo Xiong 2020Journal of Animal Science and Biotechnology2020,11,3:0
15Investigation on step overcharge to self-heating behavior and mechanism analysis of lithium ion batteries显示文摘To obtain intrinsic overcharge boundary and investigate overcharge mechanism,here we propose an innovative method,the step overcharge test,to reduce the thermal crossover and distinguish the overcharge thermal behavior,including 5%state of charge(SOC)with small current overcharge and resting until the temperature equilibrium under adiabatic conditions.The intrinsic thermal response and the self-excitation behaviour are analysed through temperature and voltage changes during the step overcharge period.Experimental results show that the deintercalated state of the cathode is highly correlated to self-heating parasitic reactions.Before reaching the upper limit of Negative/Positive(N/P)ratio,the temperature changes little,the heat generation is significantly induced by the reversible heat(endothermic)and ohmic heat,which could balance each other.Following that the lithium metal is gradually deposited on the surface of the anode and reacts with electrolyte upon overcharge,inducing selfheating side reaction.However,this spontaneous thermal reaction could be“self-extinguished”.When the lithium in cathode is completely deintercalated,the boundary point of overcharge is about 4.7 V(~148%SOC,>40℃),and from this point,the self-heating behaviour could be continuously triggered until thermal runaway(TR)without additional overcharge.The whole static and spontaneous process lasts for 115 h and the side reaction heat is beyond 320,000 J.The continuous self-excitation behavior inside the battery is attributed to the interaction between the highly oxidized cathode and the solvent,which leads to the dissolution of metal ions.The dissolved metal ions destroy the SEI(solid electrolyte interphase)film on the surface of the deposited Li of anode,which induces the thermal reaction between lithium metal and the solvent.The interaction between cathode,the deposited Li of anode,and solvent promotes the temperature of the battery to rise slowly.When the temperature of the battery reaches more than 60℃,the reaction between lithium metal and solvent is accelerated.After the temperature rises rapidly to the melting point of the separator,it triggers the thermal runaway of the battery due to the short circuit of the battery.Fengling Yun Shiyang Liu Min Gao Xuanxuan Bi Weijia Zhao Zenghua Chang Minjuan Yuan Jingjing Li Xueling Shen Xiaopeng Qi Ling Tang Yi Cui Yanyan Fang Lihao Guo Shangqian Zhao Xiangjun Zhang Shigang Lu 2023Journal of Energy Chemistry2023,,4:0
16Demonstration of a manufacturable SOT-MRAM multiplexer array towards industrial applications显示文摘We have successfully demonstrated a 1 Kb spin-orbit torque(SOT)magnetic random-access memory(MRAM)multiplexer(MUX)array with remarkable performance.The 1 Kb MUX array exhibits an in-die function yield of over 99.6%.Additionally,it provides a sufficient readout window,with a TMR/RP_sigma%value of 21.4.Moreover,the SOT magnetic tunnel junctions(MTJs)in the array show write error rates as low as 10^(-6)without any ballooning effects or back-hopping behaviors,ensuring the write stability and reliability.This array achieves write operations in 20 ns and 1.2 V for an industrial-level temperature range from-40 to 125℃.Overall,the demonstrated array shows competitive specifications compared to the state-of-the-art works.Our work paves the way for the industrial-scale production of SOT-MRAM,moving this technology beyond R&D and towards widespread adoption.Chuanpeng Jiang Jinhao Li Hongchao Zhang Shiyang Lu Pengbin Li Chao Wang Zhongkui Zhang Zhengyi Hou Xu Liu Jiagao Feng He Zhang Hui Jin Gefei Wang Hongxi Liu Kaihua Cao Zhaohao Wang Weisheng Zhao 2023Journal of Semiconductors2023,44,12:0
17Evolutionary dynamics and conserved function of the Tudor domain-containing(TDRD)proteins in teleost fish显示文摘Tudor domain-containing(TDRD)proteins,the germline enriched protein family,play essential roles in the process of gametogenesis and genome stability through their interaction with the PIWI-interacting RNA(piRNA)pathway.Several studies have suggested the rapid evolution of the piRNA pathway in teleost lineages with striking reproductive diversity.However,there is still limited information about the function and evolution of Tdrd genes in teleost species.In this study,through genome wide screening,13 Tdrd family genes were identified in economically important aquaculture fish,including spotted sea bass(Lateolabrax maculatus),Asian sea bass(Lates calcarifer),and tongue sole(Cynoglossus semilaevis).With copy number,structure,phylogeny,and synteny analysis,duplication of Tdrd6 and Tdrd7,as well as loss of Stk31 and Tdrd10,were characterized in teleost lineages.Codon based molecular evolution analysis indicated faster evolution of teleost Tdrd genes than that in mammals,potentially associated with the accelerated evolution of the piRNA pathway in teleost lineages.The evolutionary diversity of Tdrd genes was also detected between different teleost lineages.RNA-seq analysis showed that most teleost Tdrd genes were dominantly expressed in gonads,particularly highly expressed in testis,such as Tdrd6,Tdrd7a,Tdrd9,Ecat8,and Tdrd15.The varied expression and evolutionary pattern between the duplicated Tdrd6 and Tdrd7 in teleosts may indicate their functional diversification.All these results suggest a conserved function of teleost Tdrd family in gametogenesis and the piRNA pathway,which could lay a foundation for the evolution of Tdrd genes and be helpful for further deciphering of Tdrd functions in teleosts.Zeyu Liu Saisai Liu Shiyang Guo Wei Lu Quanqi Zhang Jie Cheng 2022Marine Life Science & Technology2022,4,1:0
18Pomegranate-like C_(60)@cobalt/nitrogen-codoped porous carbon for high-performance oxygen reduction reaction and lithium-sulfur battery显示文摘Porous carbon materials play essential roles in electrocatalysis and electrochemical energy storage.It is of significant importance to rationally design and tune their porous structure and active sites for achieving high electrochemical activity and stability.Herein,we develop a novel approach to tune the morphology of porous carbon materials(PCM)by embedding fullerene C_(60),achieving improved performance of oxygen reduction reaction(ORR)and lithium-sulfur(Li-S)battery.Owing to the strong interaction between C_(60)and imidazole moieties,pomegranate-like hybrid of Ow-embedded zeolitic imidazolate framework(ZIF-67)precursor is synthesized,which is further pyrolyzed to form C_(60)-embedded cobalt/nitrogen-codoped porous carbon materials(abbreviated as C_(60)@Co-N-PCM).Remarkably,the unique structure of C_(60)@Co-N-PCM offers excellent ORR electrocatalytic activity and stability in alkaline solutions,outperforming the commercial Pt/C(20 wt.%)catalyst.Besides,C_(60)@Co-N-PCM as a novel cathode delivers a high specific capacity of-900 mAh·g^(-1) at 0.2 C rate in Li-S batteries,which is superior to the pristine ZIF-67-derived PCM without embedding C_(60).Jianhua Wu Shiyang Wang Zhanwu Lei Runnan Guan Muqing Chen Pingwu Du Yalin Lu Ruiguo Cao Shangfeng Yang 2021Nano Research2021,14,8:0
19Simulation Analysis of New Energy Vehicle Engine Cooling System Based on K-E Turbulent Flow Mathematical Model显示文摘New energy vehicles have better clean and environmental protection characteristics than traditional fuel vehicles.The new energy engine cooling technology is critical in the design of new energy vehicles.This paper used oneand three-way joint simulation methods to simulate the refrigeration system of new energy vehicles.Firstly,a k-εturbulent flow model for the cooling pump flow field is established based on the principle of computational fluid dynamics.Then,the CFD commercial fluid analysis software FLUENT is used to simulate the flow field of the cooling pump under different inlet flow conditions.This paper proposes an optimization scheme for new energy vehicle engines’“boiling”phenomenon under high temperatures and long-time climbing conditions.The simulation results show that changing the radiator’s structure and adjusting the thermostat’s parameters can solve the problem of a“boiling pot.”The optimized new energy vehicle engine can maintain a better operating temperature range.The algorithm model can reference each cryogenic system component hardware selection and control strategy in the new energy vehicle’s engine.Hongyu Mu Yinyan Wang Chuanlei Yang Hong Teng Xingtian Zhao Hongquan Lu Dechun Wang Shiyang Hao Xiaolong Zhang Yan Jin 2023Energy Engineering2023,120,10:0
20Magnetic coupling governed pinning directions in magnetic tunnel junctions under magnetic field annealing with zero magnetic field cooling显示文摘With the rapid development of emerging concepts,such as the Internet of things and big data,the use of various magnetoresistance(MR)sensors,especially tunneling MR(TMR)in magnetic tunnel junctions(MTJs),for information perception is considered the critical first step.A typical topic in this field is the construction of a Wheatstone bridge structure to restrain the temperature drift and amplify the magnetic response signal.Weibin CHEN Shaohua YAN Zhiqiang CAO Shiyang LU Xiaonan ZHAO Runrun HAO Zitong ZHOU Zhi LI Kun ZHANG Shishen YAN Qunwen LENG 2023Science China(Information Sciences)2023,66,4:0
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