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87篇 您的检索式:作者名="Shibo Zhang"
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1AXL is a candidate receptor for SARS-CoV-2 that promotes infection of pulmonary and bronchial epithelial cells显示文摘The current coronavirus disease 2019(COVID-19)pandemic presents a global public health challenge.The viral pathogen responsible,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),binds to the host receptor ACE2 through its spike(S)glycoprotein,which mediates membrane fusion and viral entry.Although the role of ACE2 as a receptor for SARS-CoV-2 is clear,studies have shown that ACE2 expression is extremely low in various human tissues,especially in the respiratory tract.Thus,other host receptors and/or co-receptors that promote the entry of SARS-CoV-2 into cells of the respiratory system may exist.In this study,we found that the tyrosine-protein kinase receptor UFO(AXL)specifically interacts with the N-terminal domain of SARS-CoV-2 S.Using both a SARS-CoV-2 virus pseudotype and authentic SARS-CoV-2,we found that overexpression of AXL in HEK293T cells promotes SARS-CoV-2 entry as efficiently as overexpression of ACE2,while knocking out AXL significantly reduces SARS-CoV-2 infection in HI 299 pulmonary cells and in human primary lung epithelial cells.Soluble human recombinant AXL blocks SARS-CoV-2 infection in cells expressing high levels of AXL.The AXL expression level is well correlated with SARS-CoV-2 S level in bronchoalveolar lavage fluid cells from COVID-19 patients.Taken together,our findings suggest that AXL is a novel candidate receptor for SARS-CoV-2 which may play an important role in promoting viral infection of the human respiratory system and indicate that it is a potential target for future clinical intervention strategies.Shuai Wang Zongyang Qiu Yingnan Hou Xiya Deng Wei Xu Tingting Zheng Peihan Wu Shaofang Xie Weixiang Bian Chong Zhang Zewei Sun Kunpeng Liu Chao Shan Aifu Lin Shibo Jiang Youhua Xie Qiang Zhou Lu Lu Jing Huang Xu Li 2021Cell Research2021,31,2:39
2Characterization of the receptor-binding domain(RBD)of 2019 novel coronavirus:implication for development of RBD protein as a viral attachment inhibitor and vaccine显示文摘The outbreak of Coronavirus Disease 2019(COVID-19)has posed a serious threat to global public health,calling for the development of safe and effective prophylactics and therapeutics against infection of its causative agent,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),also known as 2019 novel coronavirus(2019-nCoV).The CoV spike(S)protein plays the most important roles in viral attachment,fusion and entry,and serves as a target for development of antibodies,entry inhibitors and vaccines.Here,we identified the receptor-binding domain(RBD)in SARS-CoV-2 S protein and found that the RBD protein bound strongly to human and bat angiotensin-converting enzyme 2(ACE2)receptors.SARS-CoV-2 RBD exhibited significantly higher binding affinity to ACE2 receptor than SARS-CoV RBD and could block the binding and,hence,attachment of SARS-CoV-2 RBD and SARS-CoV RBD to ACE2-expressing cells,thus inhibiting their infection to host cells.SARS-CoV RBD-specific antibodies could crossreact with SARS-CoV-2 RBD protein,and SARS-CoV RBD-induced antisera could cross-neutralize SARS-CoV-2,suggesting the potential to develop SARS-CoV RBD-based vaccines for prevention of SARS-CoV-2 and SARS-CoV infection.Wanbo Tai Lei He Xiujuan Zhang Jing Pu Denis Voronin Shibo Jiang Yusen Zhou Lanying Du 2020Cellular & Molecular Immunology2020,17,6:35
3Fields experiments in North China show no decrease in winter wheat yields with night temperature increased by 2.0-2.5°C显示文摘The trends of daily maximum and minimum temperature in global warming indicated that the daily minimum temperature (Tmin) has risen more than twice as fast as the daily maximum temperature (Tmax) during the 20th century. Most researchers have focused on how the crops respond to daily mean temperature, whereas few controlled experiments were carried out to investigate how the crops respond to the Tmin rise. In particular, no experiment research has reported on how crops respond to the higher night temperature, which was the main trend in the climate warming. Taking winter wheat as the test crop, we investigated how the winter wheat growth and yields responded to the higher night temperature. In the field experiments, infrared heaters were used to increase higher night temperature (HNT) by about 2.5°C in contrast to the normal night temperature (CK) in two whole growth durations of winter wheat in 2008-2009 and 2009-2010 in North China. The results indicated that, compared to the CK treatment, winter wheat yield did not decline in HNT treatment, which increased temperatures by 2.0 2.5°C in both Warmer year (WY) and Colder year (CY). Furthermore, winter wheat yield in CY increased significantly in HNT treatment. HNT treatment in CY could significantly promote tillering and increase the effective panicles, which increased grain yield significantly (by more than 30% compared with CK). HNT treatment in CY contributed to an increase in the effective panicles and Kernels significantly, although making a significant reduction in 1000-grain weight, but did not lead to the yield decline. Under the HNT treatment, the whole growth duration of the winter wheat was shortened and the phenological dates were earlier except for the beginning of overwintering; the beginnings of the overwintering phase were postponed substantially and the ends of the overwintering phase were ahead of date compared to CK, which shortened the duration of overwintering considerably. We draw on our own studies to show examples of higher night temperature impact on winter wheat in a relatively cold year and relatively warm year in North China. Our results refer to winter wheat in North China, not all main winter wheat producing regions, in Huang-Huai and Southwest of China. Some uncertainties of our predictions derive from fast progress in crop breeding, the variability of climate, and the role of adaptive actions in the future. As expected, the adaptation measures should be considered to cope with the impacts of global warming on crops, and further research and assessments should be conducted.FANG ShiBo TAN KaiYan REN SanXue ZHANG XinShi ZHAO JunFang 2012Science China Earth Sciences2012,55,6:13
4Identification of an ideal adjuvant for receptor-binding domain-based subunit vaccines against Middle East respiratory syndrome coronavirus显示文摘Naru Zhang Rudragouda Channappanavar Cuiqing Ma Lili Wang Jian Tang Tania Garron Xinrong Tao Sumaiya Tasneem Lu Lu Chien-Te K Tseng Yusen Zhou Stanley Perlman Shibo Jiang Lanying Du 2016Cellular & Molecular Immunology2016,13,2:12
5Integrated removal of NO and mercury from coal combustion flue gas using manganese oxides supported on TiO_2显示文摘A catalyst composed of manganese oxides supported on titania(MnO_x/TiO_2) synthesized by a sol–gel method was selected to remove nitric oxide and mercury jointly at a relatively low temperature in simulated flue gas from coal-fired power plants. The physico-chemical characteristics of catalysts were investigated by X-ray fluorescence(XRF), X-ray diffraction(XRD), and X-ray photoelectron spectroscopy(XPS) analyses, etc. The effects of Mn loading,reaction temperature and individual flue gas components on denitration and Hg^0 removal were examined. The results indicated that the optimal Mn/Ti molar ratio was 0.8 and the best working temperature was 240°C for NO conversion. O_2 and a proper ratio of [NH_3]/[NO]are essential for the denitration reaction. Both NO conversion and Hg^0 removal efficiency could reach more than 80% when NO and Hg^0 were removed simultaneously using Mn0.8 Tiat 240°C.Hg^0 removal efficiency slightly declined as the Mn content increased in the catalysts. The reaction temperature had no significant effect on Hg^0 removal efficiency. O_2 and HCl had a promotional effect on Hg^0 removal. SO2 and NH_3were observed to weaken Hg^0 removal because of competitive adsorption. NO first facilitated Hg^0 removal and then had an inhibiting effect as NO concentration increased without O_2, and it exhibited weak inhibition of Hg^0 removal efficiency in the presence of O_2. The oxidation of Hg^0 on Mn O x/TiO_2 follows the Mars–Maessen and Langmuir–Hinshelwood mechanisms.Shibo Zhang Yongchun Zhao Zonghua Wang Junying Zhang Lulu Wang Chuguang Zheng 2017Journal of Environmental Sciences2017,29,3:11
6Antenna Selection and Power Allocation Design for 5G Massive MIMO Uplink Networks显示文摘Massive MIMO is one of the key technologies in future 5G communications which can satisfy the requirement of high speed and large capacity. This paper considers antenna selection and power allocation design to promote energy conservation then provide good quality of service(QoS) for the whole massive MIMO uplink network. Unlike previous related works, hardware impairment, transmission efficiency, and energy consumption at the circuit and antennas are involved in massive MIMO networks. In order to ensure the QoS, we consider the minimum rate constraint for each user and the system, which increases the complexity of power allocation problem for maximizing energy and spectral efficiency in massive MIMO system. To this end, a quantum-inspired social emotional optimization(QSEO) algorithm is proposed to obtain the optimal power control strategy in massive MIMO uplink networks. Simulation results assess the great advantages of QSEO which previous strategies do not have.Hongyuan Gao Yumeng Su Shibo Zhang Ming Diao 2019China Communications2019,16,4:10
7Identification of HBsAg-specific antibodies from a mammalian cell displayed full-length human antibody library of healthy immunized donor显示文摘肝炎 B 免疫球蛋白(HBIG ) 在肝炎 B 的管理是重要的病毒(HBV ) 感染。试图作为 HBIG 的一种选择开发 recombinant monoclonal 抗体,我们报导 HBV 表面抗原(HBsAg ) 的成功的鉴定从在哺乳动物的房间上显示的一个全身的人的抗体图书馆的特定的抗体出现。把一个生来地使免疫的施主的外部血 mononuclear 房间的全部的 RNA 用作模板,抗体全部剧目被放大。联合四方法的结扎和 Flp 调停 recombinase 的集成(Flp 在里面) 系统,我们构造了每个房间在显示了一个种仅仅抗体分子的一个哺乳动物的基于房间的、充分人的、全身的抗体显示图书馆。由屏蔽使用激活荧光的房间排序的房间图书馆(FACS ) ,八个房间克隆显示那房间表面上的 HBsAg 特定的抗体被识别。抗体基因的 DNA 顺序分析揭示了三唯一的抗体。FACS 数据显示了那荧光灯表示(FSE ) 的力量,荧光灯绑定(FSB ) 的力量和相对有约束力的能力(RBA ) 都在他们之中是不同的。这些结果由使用我们的抗体表明了那哺乳动物的显示和屏蔽站台,我们能成功地从一个使免疫的全身的抗体图书馆识别抗原特定的抗体。因此,这个平台为治疗学的抗体的开发是很有用的。Chang-Zheng Li Zhong-Kun Liang Zhen-Rui Chen Hai-Bo Lou Ye Zhou Zhe-Huan Zhang Fei Yu Shuwen Liu Yuanping Zhou Shuguang Wu Wenling Zheng Wanlong Tan Shibo Jiang Chen Zhou 2012Cellular & Molecular Immunology2012,9,2:7
8Design of hierarchical, three-dimensional free-standing single-atom electrode for H2O2 production in acidic media显示文摘Electrochemical reduction of molecular O2 to hydrogen peroxide(H2O2)offers a promising solution for water purification and environmental remediation.Here,we design a hierarchical free-standing single-Co-atom(with Co-N4 coordination)electrode for oxygen reduction reaction(ORR)via a two-electron pathway to make H2O2 in acidic media.The current density of the single-Co-atom electrode reached 51 mA/cm2 at 0.1 V vs reversible hydrogen electrode,lasting for more than 10 hours of continuous operation with H2O2 selectivity greater than 80%.Toward practical application,the single-Co-atom electrode was directly used to assemble an electrochemical cell to produce H2O2 at a rate of 676 mol/kgcat/h with a cell voltage of about 1.6 V.Jincheng Zhang Hongbin Yang Jiajian Gao Shibo Xi Weizheng Cai Junming Zhang Ping Cui Bin Liu 2020Carbon Energy2020,2,2:6
9Four-way ligation for construction of a mammalian cell-based full-length antibody display library显示文摘唯一的四方法的结扎策略为一个全身的抗体图书馆的快速的建设被开发。哺乳动物的表示向量被构造盒子和序列由唯一的限制酶 BsmBI, BstXI,和 SfiI 认出了的那包含的双哺乳动物的表情。重链的基因的全身的轻链、可变的领域被四方法的结扎在一步插入到向量,并且全身的二原子价的抗体在哺乳动物的房间表面上被显示。用这策略,仅仅 2 个星期被要求成功地构造高质量的、全身的人的抗体图书馆。Ivan Zhou Zhe-Huan Zhang Chang-Zheng Li Zhen-Rui Chen Wei He Ye Zhou Shuwen Liu Shuguang Wu Yuanping Zhou Wanlong Tan Shibo Jiang Chen Zhou 2011Acta Biochimica et Biophysica Sinica2011,43,3:6
10A novel receptor-binding domain (RBD)-based mRNA vaccine against SARS-CoV-2显示文摘Dear Editor,The pandemic of coronavirus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)highlights the need to develop effective and safe vaccines.Similar to SARS-CoV,SARS-CoV-2 recognizes angiotensin-converting enzyme 2(ACE2)as receptor for host cell entry.1,2 SARS-CoV-2 spike(S)protein consists of S1,including receptor-binding domain(RBD),and S2 subunits.3,4 We previously demonstrated that RBDs of SARS-CoV and MERS-CoV serve as important targets for the development of effective vaccines.Wanbo Tai Xiujuan Zhang Aleksandra Drelich Juan Shi Jason CHsu Larry Luchsinger Christopher D.Hillyer Chien-Te KTseng Shibo Jiang Lanying Du 2020Cell Research2020,30,10:5
11A novel STING agonist-adjuvanted pan-sarbecovirus vaccine elicits potent and durable neutralizing antibody and T cell responses in mice,rabbits and NHPs显示文摘The emergence of SARS-CoV-2 variants and potentially other highly pathogenic sarbecoviruses in the future highlights the need for pan-sarbecovirus vaccines.Here,we discovered a new STING agonist,CF501,and found that CF501-adjuvanted RBD-FC vaccine(CF501/RBD-FC)elicited significantly stronger neutralizing antibody(nAb)and T cell responses than Alum-and cGAMP-adjuvanted RBD-FC in mice.Vaccination of rabbits and rhesus macaques(nonhuman primates,NHPs)with CF501/RBD-FC elicited exceptionally potent nAb responses against SARS-CoV-2 and its nine variants and 41 S-mutants,SARS-CoV and bat SARSr-CoVs.CF501/RBD-FC-immunized hACE2-transgenic mice were almost completely protected against SARS-CoV-2 challenge,even 6 months after the initial immunization.NHPs immunized with a single dose of CF501/RBD-FC produced high titers of nAbs.The immunized macaques also exhibited durable humoral and cellular immune responses and showed remarkably reduced viral load in the upper and lower airways upon SARS-CoV-2 challenge even at 108 days post the final immunization.Thus,CF501/RBD-Fc can be further developed as a novel pan-sarbecovirus vaccine to combat current and future outbreaks of sarbecovirus diseases.Zezhong Liu Jie Zhou Wei Xu Wei Deng Yanqun Wang Meiyu Wang Qian Wang Ming Hsieh Jingming Dong Xinling Wang Weijin Huang Lixiao Xing Miaoling He Chunlin Tao Youhua Xie Yilong Zhang Youchun Wang Jincun Zhao Zhenghong Yuan Chuan Qin Shibo Jiang Lu Lu 2022Cell Research2022,32,3:5
12Engineered trimeric ACE2 binds viral spike protein and locks it in'Thfee-up'conformation to potently inhibit SARS-CoV-2 infection显示文摘Dear Editor,Coronavirus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has resulted in a severe global pandemic Following SARS-CoV,SARS-CoV-2 is yet another emerge nt beta-coronavirus threate ning human health.1 However,seventeen years after the SARS pandemic,no targeted vaccines or therapeutics have been approved for SARS,while some of them might have held promise for treating COVID-19.Many neutralizing antibodies against SARS-CoV-2 are currently being developed.However,RNA viruses are known to have high mutation rates.Liang Guo Wenwen Bi Xinling Wang Wei Xu Renhong Yan Yuanyuan Zhang Kai Zhao Yaning Li Mingfeng Zhang Xia Cai Shibo Jiang Youhua Xie Qiang Zhou Lu Lu Bobo Dang 2021Cell Research2021,31,1:5
13Retraction Note to:SARS-CoV-2 infects T lymphocytes through its spike protein-mediated membrane fusion显示文摘The authors have retracted this article1.After the publication of this article,it came to the authors attention that in order to support the conclusions of the study,the authors should have used primary T cells instead of T-cell lines.In addition,there are concerns that the flow cytometry methodology applied here was flawed.These points resulted in the conclusions being considered invalid.Xinling Wang Wei Xu Gaowei Hu Shuai Xia Zhiping Sun Zezhong Liu Youhua Xie Rong Zhang Shibo Jiang Lu Lu 2020Cellular & Molecular Immunology2020,17,8:5
14A pan-sarbecovirus vaccine induces highly potent and durable neutralizing antibody responses in non-human primates against SARS-CoV-2 Omicron variant显示文摘Dear Editor,Since the outbreak of Coronavirus Disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection,numerous SARS-CoV-2 variants of concern(VOCs),such as Alpha(B.1.1.7),Beta(B.1.351),Gamma(P.1),and Delta(B.1.617.2),have emerged.Recently,the newly identified SARS-CoV-2 VOC,Omicron(B.1.1.529),has rapidly spread in many countries1 and is expected to replace Delta as the dominant variant circulating in the world.Compared to other VOCs,Omicron contains at least 32 mutations in spike(S)protein,including 15 mutations in the receptor-binding domain(RBD),and these mutations are known to confer resistance to neutralizing antibodies(nAbs)and sera of convalescent patients and people who have received COVID-19 vaccines.2–5 Therefore,vaccines able to induce potent and durable neutralizing antibodies against Omicron and other VOCs are urgently needed.Zezhong Liu Jasper Fuk-Woo Chan Jie Zhou Meiyu Wang Qian Wang Guangxu Zhang Wei Xu Kenn Ka-Heng Chik Yilong Zhang Youchun Wang Kwok-Yung Yuen Lu Lu Shibo Jiang 2022Cell Research2022,32,5:4
15Sin1/mTORC2 regulate B cell growth and metabolism by activating mTORC1 and Myc显示文摘Proper control of B cell growth and metabolism is crucial for B-cell-mediated immunity,but the underlying molecular mechanisms remain incompletely understood.In this study,Sin1,a key component of mTOR complex 2(mTORC2),specifically regulates B cell growth and metabolism.Genetic ablation of Sin1 in B cells reduces the cell size at either the transitional stage or upon antigen stimulation and severely impairs metabolism.Sin1 deficiency also severely impairs B-cell proliferation,antibody responses,and anti-viral immunity.At the molecular level,Sin1 controls the expression and stability of the c-Myc protein and maintains the activity of mTORC1 through the Akt-dependent inactivation of GSK3 and TSC1/2,respectively.Therefore,our study reveals a novel and specific role for Sin1 in coordinating the activation of mTORC2 and mTORC1 to control B cell growth and metabolism.Man Li Adam S.Lazorchak Xinxing Ouyang Huihui Zhang Hongzhi Liu Omotooke A.Arojo Lichong Yan Jingsi Jin Yuheng Han Guojun Qu Yuhong Fu Xiaocao Xu Xiaobo Liu Wenqian Zhang Zhengfeng Yang Chuan Ruan Qijun Wang Dou Liu Chuanxin Huang Lu Lu Shibo Jiang Fubin Li Bing Su 2019Cellular & Molecular Immunology2019,16,9:4
16From structural ceramics to 2D materials with multi-applications:A review on the development from MAX phases to MXenes显示文摘MAX phases(Ti_(3)SiC_(2),Ti_(3)AIC_(2),V_(2)AlC,TiqAlN_(3),etc.)are layered ternary carbides/nitrides,which are generally processed and researched as structure ceramics.Selectively removing A layer from MAX phases,MXenes(Ti_(3)C_(2),V_(2)C,Mo_(2)C,etc.)with two-dimensional(2D)structure can be prepared.The MXenes are electrically conductive and hydrophilic,which are promising as functional materials in many areas.This article reviews the milestones and the latest progress in the research of MAX phases and MXenes,from the perspective of ceramic science.Especially,this article focuses on the conversion from MAX phases to MXenes.First,we summarize the microstructure,preparation,properties,and applications of MAX phases.Among the various properties,the crack healing properties of MAX phase are highlighted.Thereafter,the critical issues on MXene research,including the preparation process,microstructure,MXene composites,and application of MXenes,are reviewed.Among the various applications,this review focuses on two selected applications:energy storage and electromagnetic interference shielding.Moreover,new research directions and future trends on MAX phases and MXenes are also discussed.Aiguo ZHOU Yi LIU Shibo LI Xiaohui WANG Guobing YING Qixun XIA Peigen ZHANG 2021Journal of Advanced Ceramics2021,10,6:4
17Engineering self-healing adhesive hydrogels with antioxidant properties for intrauterine adhesion prevention显示文摘Intrauterine adhesion (IUA) is the fibrosis within the uterine cavity. It is the second most common cause of female infertility, significantly affecting women’s physical and mental health. Current treatment strategies fail to provide a satisfactory therapeutic outcome for IUA patients, leaving an enormous challenge for reproductive science. A self-healing adhesive hydrogel with antioxidant properties will be highly helpful in IUA prevention. In this work, we prepare a series of self-healing hydrogels (P10G15, P10G20, and P10G25) with antioxidant and adhesive properties. Those hydrogels exhibit good self-healing properties and can adapt themselves to different structures. They possess good injectability and fit the shape of the human uterus. Moreover, the hydrogels exhibit good tissue adhesiveness, which is desirable for stable retention and therapeutic efficacy. The in vitro experiments using P10G20 show that the adhesive effectively scavenges ABTS+, DPPH, and hydroxyl radicals, rescuing cells from oxidative stress. In addition, P10G20 offers good hemocompatibility and in vitro and in vivo biocompatibility. Furthermore, P10G20 lowers down the in vivo oxidative stress and prevents IUA with less fibrotic tissue and better endometrial regeneration in the animal model. It can effectively downregulate fibrosis-related transforming growth factor beta 1 (TGF-β1) and vascular endothelial growth factor (VEGF). Altogether, these adhesives may be a good alternative for the clinical treatment of intrauterine adhesion.Luyao Feng Liqun Wang Yao Ma Wanglin Duan Sergio Martin-Saldana Ye Zhu Xianpeng Zhang Bin Zhu Chaowei Li Shibo Hu Mingjie Bao Ting Wang Yuan Zhu Fei Yang Yazhong Bu 2023Bioactive Materials2023,,9:3
18Genome Sequence of a Marine Carotenoid Producing Yeast Rhodotorula mucilaginosa CYJ03显示文摘Carotenoids are valuable pigments that have been widely used in food,pharmaceutical,animal breeding and cosmetics industries.Due to the increasing demand for carotenoids of natural origin,the trend for production of carotenoids by red yeast has become popular.Strain Rhodotorula mucilaginosa CYJ03 was isolated from northern Yellow Sea of China for its carotenoid producing potential.It was found that the whole genome of CYJ03 was 19.03 Mb in size and contained 6301 protein-coding genes including a gene cluster for the carotenoids biosynthesis.The genome sequence would be valuable for exploring the potential biological properties of CYJ03,as well as for facilitating the molecular genetic analysis and the manipulation of carotenoids accumulation in this strain,and for the development of it as an engineered host for carotenoid production.TANG Wei WANG Yue CAI Yali LIU Shibo ZHANG Jun HE Zengguo 2020Journal of Ocean University of China2020,19,2:3
19Integrating remotely sensed water stress factor with a crop growth model for winter wheat yield estimation in the North China Plain during 2008–2018显示文摘Accurate estimation of regional-scale crop yield under drought conditions allows farmers and agricultural agencies to make well-informed decisions and guide agronomic management. However, few studies have focused on using the crop model data assimilation(CMDA) method for regional-scale winter wheat yield estimation under drought stress and partial-irrigation conditions. In this study, we developed a CMDA framework to integrate remotely sensed water stress factor(MOD16 ET PET) with the WOFOST model using an ensemble Kalman filter(En KF) for winter wheat yield estimation at the regional scale in the North China Plain(NCP) during 2008–2018. According to our results, integration of MOD16 ET PETwith the WOFOST model produced more accurate estimates of regional winter wheat yield than open-loop simulation. The correlation coefficient of simulated yield with statistical yield increased for each year and error decreased in most years, with r ranging from 0.28 to 0.65 and RMSE ranging from 700.08 to1966.12 kg ha. Yield estimation using the CMDA method was more suitable in drought years(r = 0.47, RMSE = 919.04 kg ha) than in normal years(r = 0.30, RMSE = 1215.51 kg ha). Our approach performed better in yield estimation under drought conditions than the conventional empirical correlation method using vegetation condition index(VCI). This research highlighted the potential of assimilating remotely sensed water stress factor, which can account for irrigation benefit, into crop model for improving the accuracy of winter wheat yield estimation at the regional scale especially under drought conditions, and this approach can be easily adapted to other regions and crops.Wen Zhuo Shibo Fang Dong Wu Lei Wang Mengqian Li Jiansu Zhang Xinran Gao 2022The Crop Journal2022,10,5:3
20Mechanical properties and frictional resistance of Al composites reinforced with Ti3C2Tx MXene显示文摘Two-dimensional(2D)Ti3C2Tx MXene is an attractive additive not only used in base oil due to its low friction coefficient,but also used in composites due to its high aspect ratio and rich surface functional groups.So far there has been intense research into polymer matrix composites reinforced with Ti3C2Tx,Here we report on the use of 2D Ti3C2Tx to enhance the mechanical and frictional properties of Al matrix composites.Ti3C2Tx/Al composites were designed and prepared by pre s sureless sintering followed by hot extrusion technique.The prepared composites exhibit a homogeneous distribution of Ti3C2Tx.The Vickers hardness and the tensile strength continuously increase with increasing Ti3C2Tx content.A hardness of 0.52 GPa and a tensile strength of 148 MPa were achieved in the 3 wt%Ti3C2Tx/Al composite.The frictional properties of pure Al and the Ti3C2Tx/Al composite were comparably studied under dry sliding.A low friction coefficient of 0.2,twice lower than that of pure Al,was achieved in the 3 wt%Ti3C2Tx/Al composite.Ti3C2Tx acting as a solid lubricant reduces the abrasive wear in the composite,improving the frictional properties of Al matrix composites.Jie Hu Shibo Li Jing Zhang Qiuying Chang Wenbo Yu Yang Zhou 2020Chinese Chemical Letters2020,31,4:3
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