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15篇 您的检索式:作者名="Wang Tianci"
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1Thermodynamic prediction of thermal diffusivity and thermal conductivity in Mg–Zn–La/Ce system显示文摘Basic thermal properties and mechanical properties are critical parameters for the structural magnesium alloys.Solute atoms and second phases can improve mechanical properties,but are deteriorating the heat dissipation performance.Through experimental determination of alloys,it is found that REMg12 phases have fewer negative impacts on thermal diffusivities thanτ;phases.With the same intermetallic compound,the solute atom Zn have more negative influences on thermal diffusivities of Mg-Zn-La/Ce alloys than the content of second phases.In order to quantitatively evaluate thermal conductivities and further design Mg alloys with both high strength and high thermal conductivity,a calculated method is provided to describe the thermal diffusivity of alloys as a function of alloy composition and phase constitution.A set of parameters for expression of thermal diffusivity of Mg-Zn-La/Ce alloys were obtained through assessing the experimental data.The thermal conductivities of Mg-Zn-La/Ce system were predicted and agreed well with experimental values with calculation error of 1.6%and standard error of±3.0 W/(m K).The calculation method considering thermal diffusivity resistivity improves the calculation accuracy and would be physically significant.Tianci Xie Hui Shi Hongbin Wang Qun Luo Qian Li Kuo-Chih Chou 2022Journal of Materials Science & Technology2022,,2:5
2Electrolyte-mediated dense integration of graphene-MXene films for high volumetric capacitance flexible supercapacitors显示文摘High conductivity two-dimensional(2D)materials have been proved to be potential electrode materials for flexible supercapacitors because of its outstanding chemical and physical properties.However,electrodes based on 2D materials always suffer from limited electrolyte-accessible surface due to the restacking of the 2D sheets,hindering the full utilization of their surface area.In this regard,an electrolyte-mediated method is used to integrate dense structure reduced graphene oxide/MXene(RGM)-electrolyte composite films.In such composite films,reduced graphene oxide(RGO)and MXene sheets are controllable assembly in compact layered structure with electrolyte filled between the layers.The electrolyte layer between RGO and MXene sheets forms continuous ion transport channels in the composite films.Therefore,the RGM-electrolyte composite films can be used directly as self-supporting electrodes for supercapacitors without additional conductive agents and binders.As a result,the composite films demonstrate enhanced volumetric specific capacity,improved volumetric energy density and higher power density compared with both pure RGO electrode and porous composite electrode prepared by traditional methods.Specifically,when the mass ratio of MXene is 30%,the electrode delivers a volumetric specific capacity of 454.9 F·cm^(−3) with a high energy density of 39.4 Wh·L^(−1).More importantly,supercapacitors based on the composite films exhibit good flexibility electrochemical performance.The investigation provides a new approach to synthesize dense structure films based on 2D materials for application in high volumetric capacitance flexible supercapacitors.Min Zhang Jun Cao Yi Wang Jia Song Tianci Jiang Yanyu Zhang Weimeng Si Xiaowei Li Bo Meng Guangwu Wen 2021Nano Research2021,14,3:2
3Dynamic glial response and crosstalk in demyelination-remyelination and neurodegeneration processes显示文摘Multiple sclerosis is an autoimmune disease in which the immune system attacks the myelin sheath in the central nervous system.It is characterized by blood-brain barrier dysfunction throughout the course of multiple sclerosis, followed by the entry of immune cells and activation of local microglia and astrocytes.Glial cells(microglia, astrocytes, and oligodendrocyte lineage cells) are known as the important mediators of neuroinflammation, all of which play major roles in the pathogenesis of multiple sclerosis.Network communications between glial cells affect the activities of oligodendrocyte lineage cells and influence the demyelination-remyelination process.A finely balanced glial response may create a favorable lesion environment for efficient remyelination and neuroregeneration.This review focuses on glial response and neurodegeneration based on the findings from multiple sclerosis and major rodent demyelination models.In particular, glial interaction and molecular crosstalk are discussed to provide insights into the potential cell-and molecule-specific therapeutic targets to improve remyelination and neuroregeneration.Tianci Chu Lisa B.E.Shields Wenxin Zeng Yi Ping Zhang Yuanyi Wang Gregory N.Barnes Christopher B.Shields Jun Cai 2021Neural Regeneration Research2021,16,7:2
4A joint call for actions to advance taxonomy in China显示文摘Taxonomy plays an important role in understanding the origin, evolution, and ecological functionality of biodiversity. There are large number of unknown species yet to be described by taxonomists, which together with their ecosystem services cannot be effectively protected prior to description. Despite this, taxonomy has been increasingly underrated insufficient funds and permanent positions to retain young talents. Further, the impact factordriven evaluation systems in China exacerbate this downward trend, so alternative evaluation metrics are urgently necessary. When the current generation of outstanding taxonomists retires,there will be too few remaining taxonomists left to train the next generation. In light of these challenges, all co-authors worked together on this paper to analyze the current situation of taxonomy and put out a joint call for immediate actions to advance taxonomy in China.Chaodong Zhu Arong Luo Ming Bai Michael COrr Zhonge Hou Siqin Ge Jun Chen Yibo Hu Xuming Zhou Gexia Qiao Hongzhi Kong Limin Lu Xiaohua Jin Lei Cai Xinli Wei Ruilin Zhao Wei Miao Qingfeng Wang Zhongli Sha Qiang Lin Meng Qu Jianping Jiang Jiatang Li Jing Che Xuelong Jiang Xiaoyong Chen Lianming Gao Zongxin Ren Chunlei Xiang Shixiao Luo Donghui Wu Dong Liu Yanqiong Peng Tao Su Chenyang Cai Tianqi Zhu Wanzhi Cai Xingyue Liu Hu Li Huaijun Xue Zhen Ye Xuexin Chen Pu Tang Shujun Wei Hong Pang Qiang Xie Feng Zhang Feng Zhang Xianjin Peng Aibing Zhang Taiping Gao Changfa Zhou Chen Shao Libin Ma Zhaoming Wei Yunxia Luan Ziwei Yin Wu Dai Cong Wei Xiaolei Huang Jingxian Liu Xiangsheng Chen Tianci Yi Zhisheng Zhang Zhulidezi Aishan Qin Li Hongying Hu 2022Zoological Systematics2022,47,3:1
5The influence of air supply inlet location on the spatial-temporal distribution of bioaerosol in isolation ward under three mixed ventilation modes显示文摘The outbreak of COVID-19 and the spread of infectious pathogens through bioaerosols have once again aroused widespread concern worldwide.Isolation ward is an important place to prevent the spread of infectious bioaerosols.However,infection of health care workers(HCWs)in the isolation ward often occurs,so it is ur-gent to carry out relevant research to reduce the cross-infection between HCWs and patients.In this paper,the temporal and spatial distribution characteristics of bioaerosols under three mixed ventilation modes in a single ward were studied,namely,upper supply side return air of Case 1 and side supply and side return ventilation are Case 2 and Case 3 respectively.The results show that the removal efficiency of bioaerosol in the ventilation mode of Case 3,in which directional airflow is formed from the air supply inlet to the release source and then to the exhaust outlet,is 46.6%and 67.7%higher than that of Case 1 and Case 2,respectively.In addition,ventilation methods based on mixed theory do not guarantee good air quality in the breathing zone(1.3 m to 1.7 m)of HCWs,which may increase the inhalation risk for HCWs.It is hoped that our results can provide some useful suggestions for optimizing the airflow layout of the isolation ward,reducing the risk of cross-infection,and virus elimination.Zhijian Liu Tianci Wang Yongxin Wang Haiyang Liu Guoqing Cao Song Tang 2023Energy and Built Environment2023,4,4:1
6Near-infrared chemiluminescent carbon nanogels for oncology imaging and therapy显示文摘Carbon nanogels(CNGs)with dual ability of reactive oxygen species(ROS)imaging and photodynamic therapy have been designed with selfassembled chemiluminescent carbonized polymer dots(CPDs).With efficient deep-red/near-infrared chemiluminescence(CL)emission and distinctive photodynamic capacity,the H2O2-driven chemiluminescent CNGs are further designed by assembling the polymeric conjugate and CL donors,enabling an in vitro and in vivo ROS bioimaging capability in animal inflammation models and a high-performance therapy for xenograft tumors.Mechanistically,ROS generated in inflammatory sites or tumor microenvironment can trigger the chemically initiated electron exchange luminescence in the chemical reaction of peroxalate and H2O2,enabling in vivo CL imaging.Meanwhile,part of the excited-state electrons will transfer to the ambient H2O or dissolved oxygen and in turn lead to the type I and type II photochemical ROS production of hydroxyl radicals or singlet oxygen,endowing the apoptosis of tumor cells and thus enabling cancer therapy.These results open up a new avenue for the design of multifunctional nanomaterials for bioimaging and antienoplastic agents.Chenglong Shen Tianci Jiang Qing Lou Wenbo Zhao Chaofan Lv Guangsong Zheng Hangrui Liu Pengfei Li Lingling Dai Kaikai Liu Jinhao Zang Feng Wang Lin Dong Songnan Qu Zhe Cheng Chongxin Shan 2022SmartMat2022,3,2:1
7Tide-and rainfall-induced variations of physical and chemical parameters in a mangrove-depleted estuary of East Hainan(South China Sea)显示文摘Krumme Uwe Herbeck L S Wang Tianci 2012Marine Environmental Research2012,82,:1
8MdWRKY11 improves copper tolerance by directly promoting the expression of the copper transporter gene MdHMA5显示文摘Overuse of fungicides and fertilizers has resulted in copper(Cu)contamination of soils and toxic levels of Cu in apple fruits.To breed Cu-resistant apple(Malus domestica)cultivars,the underlying molecular mechanisms and key genes involved in Cu resistance must be identified.Here,we show that MdWRKY11 increases Cu tolerance by directly promoting the transcription of MdHMA5.MdHMA5 is a Cu transporter that may function in the storage of excess Cu in root cell walls and stems for Cu tolerance in apple.The transcription factor MdWRKY11 is highly induced by excess Cu.MdWRKY11 overexpression in transgenic apple enhanced Cu tolerance and decreased Cu accumulation.Apple calli transformed with an MdWRKY11-RNAi construct exhibited the opposite phenotype.Both an in vivo chromatin immunoprecipitation assay and an in vitro electrophoretic mobility shift assay indicated that MdWRKY11 binds to the promoter of MdHMA5.Furthermore,MdWRKY11 promoted MdHMA5 expression in transgenic apple plants,as revealed by quantitative PCR.Moreover,inhibition of MdWRKY11 expression by RNA interference led to a significant decrease in MdHMA5 transcription.Thus,MdWRKY11 directly regulates MdHMA5 transcription.Our work resulted in the identification of a novel MdWRKY11-MdHMA5 pathway that mediates Cu resistance in apple.Kun Shi Xuan Liu Yunpeng Zhu Yixue Bai Dongqian Shan Xiaodong Zheng Lin Wang Haixia Zhang Chanyu Wang Tianci Yan Fangfang Zhou Zehui Hu Yanzhao Sun Yan Guo Jin Kong 2020Horticulture Research2020,7,1:1
9Clinico-biological characteristics and treatment of hepatitis B virus-related mixed cryoglobulinemia显示文摘To the Editor:Cryoglobulinemia is a disease characterized by cryoglobulins in serum that precipitate under in vitro conditions<37°C and redissolve on rewarming.It is divided into three types:Type I,where the cryoglobulin is composed of monoclonal IgG or IgM,and rarely IgA or free immunoglobulin(Ig)light chains;Type II,where the cryoglobulin is made of monoclonal IgM with rheumatoid factor(RF)activity and polyclonal IgG;and Type III,where the cryoglobulin is composed of polyclonal IgM with RF activity and polyclonal IgG.[1]Types II and III are mixed cryoglobulinemia(MC).MC could be related to several infectious diseases,like hepatitis C and B.It mainly presents as cryoglobulinemic vasculitis,[2]including fatigue,purpura,arthralgia,myalgia,peripheral neuropathy,and even severe organ damage,like glomerulonephritis.However,cryoglobulinemic vasculitis involving the gastrointestinal tract and heart is rare.Besides,neurological,ocular,and rhino-otological symptoms of hyperviscosity syndrome are also hardly seen in MC.Here,we report one hepatitis B virus(HBV)-related MC case and analyze 41 cases in literature.We have analyzed these 42 HBV-related MC cases to clarify their clinico-biological characteristics and treatment.Xiufen Wang Xiangcheng Xiao Huipeng Ge Tianci Deng Qiaoling Zhou Jianping Ning Xiaoying Wu Hongling Yin Wei Lin Wenbin Tang 2022Chinese Medical Journal2022,,3:0
10Flexible high-resolution micro-LED display device with integrations of transparent,conductive,and highly elastic hydrogel显示文摘Computer vision techniques are real-time,immersive,and perceptual human-computer interaction technology.Excellent display effect,dynamic surface flexibility,and safe bio-adhesion are essential for various human–computer interaction applications,such as metaverse interfaces,skin-like sensors,and optoelectronic medical devices.However,realizing the flexible matching of inorganic optoelectronic devices and organisms remains a grand challenge for current display technologies.Here,we proposed a novel strategy by combining the optoelectronic advantages of inorganic micro light emitting diode(micro-LED)display and the extraordinary mechanical/biological compatibility of organic materials to overcome this challenge.A highly elastic(greater than 2000%strain),highly transparent(94%visible light transmittance),biocompatible conductive hydrogel composite electrode layer was fabricated.For the first time,we realized the on-chip electrical interconnection of 4900 LED units to form a blue-green light display patch with high resolution(264 PPI),low power consumption(4.4 mW)and adaptive surface attachment.This work demonstrates an integrated scheme and potential applications of flexible high-resolution microdisplays,such as wearable fullcolor micro-LED smart curved display devices and conformable biomedical monitoring systems.Jiangwen Wang Jianan Niu Wei Sha Xinhuan Dai Tianci Huang Qilin Hua Yong Long Junfeng Xiao Weiguo Hu 2023Nano Research2023,16,9:0
11Enhancing milk quality and modulating rectal microbiota of dairy goats in starch‑rich diet:the role of bile acid supplementation显示文摘Background Diets rich in starch have been shown to increase a risk of reducing milk fat content in dairy goats.While bile acids(BAs)have been used as a lipid emulsifier in monogastric and aquatic animals,their effect on ruminants is not well understood.This study aimed to investigate the impact of BAs supplementation on various aspects of dairy goat physiology,including milk composition,rumen fermentation,gut microbiota,and BA metabolism.Results We randomly divided eighteen healthy primiparity lactating dairy goats(days in milk=100±6 d)into two groups and supplemented them with 0 or 4 g/d of BAs undergoing 5 weeks of feeding on a starch-rich diet.The results showed that BAs supplementation positively influenced milk yield and improved the quality of fatty acids in goat milk.BAs supplementation led to a reduction in saturated fatty acids(C16:0)and an increase in monounsaturated fatty acids(cis-9 C18:1),resulting in a healthier milk fatty acid profile.We observed a significant increase in plasma total bile acid concentration while the proportion of rumen short-chain fatty acids was not affected.Furthermore,BAs supplementation induced significant changes in the composition of the gut microbiota,favoring the enrichment of specific bacterial groups and altering the balance of microbial populations.Correlation analysis revealed associations between specific bacterial groups(Bacillus and Christensenellaceae R-7 group)and BA types,suggesting a role for the gut microbiota in BA metabolism.Functional prediction analysis revealed notable changes in pathways associated with lipid metabolism,suggesting that BAs supplementation has the potential to modulate lipid-related processes.Conclusion These findings highlight the potential benefits of BAs supplementation in enhancing milk production,improving milk quality,and influencing metabolic pathways in dairy goats.Further research is warranted to elucidate the underlying mechanisms and explore the broader implications of these findings.Qingyan Yin Junjian Yu Jiaxiao Li Tianci Zhang Tianyu Wang Yufei Zhu Jun Zhang Junhu Yao 2024Journal of Animal Science and Biotechnology2024,15,2:0
12Water mites of subgenus Lebertia(Lebertia) Neuman from China(Hydrachnidia: Lebertiidae)显示文摘This paper deals with four species belonging to the subgenus Lebertia(Lebertia) Neuman, 1880 from China, including two new species to science, L.(L.) cylinderia Wang & Guo, sp. nov. and L.(L.) pseudomaglioi Wang & Guo, sp. nov., and one new record to China, L.(L.) fimbriata Thor, 1899. A key to the subgenus is provided. The specimens examined are deposited in the Institute of Entomology, Guizhou University, P. R. China(GUGC).Jialin Wang Daochao Jin Tianci Yi Jianjun Guo 2016Zoological Systematics2016,41,1:0
13Evaluation method of underground water storage space and thermal reservoir model in abandoned mine显示文摘A large number of mines are closed or abandoned every year in China.Geothermal utilization is one of the important ways to efficiently reuse underground resources in abandoned mines.How to calculate the volume and distribution of underground water storage space is the key to accurately evaluate the sustainable geothermal production in abandoned mines.In this paper,according to the multi-scale characteristics of the underground space in abandoned mine,the flow and heat transfer equations in the multi-scale space are sorted out systematically,and the calculation methods of different secondary space volumes are derived in detail.Taking Jiahe abandoned mine as the background,the volume and distribution of underground secondary space are calculated,and three heat storage evaluation models considering different water storage spaces are established by using COMSOL.The simulation results show that there are great differences among different models,and the results of the equivalent porous media model considering the multi-scale space are most consistent with the reality.Sensitivity analyses of key parameters model results indicated that the heat production is closely related to not only the recharge flow rate but also the recharge temperature and operating time.Furthermore,the energy saving and emission reduction benefits of geothermal utilization in abandoned mines are calculated,the results show that geothermal utilization of abandoned mines can effectively reduce energy consumption and CO_(2)emissions,and it has great economic benefits.Pingye Guo Meng Wang Guanjie Dang Tianci Zhu Jie Wang Manchao He 2023Rock Mechanics Bulletin2023,2,2:0
14Reduction,mineralization,and magnetic removal of chromium from soil by using a natural mineral composite显示文摘Reductive immobilization has been a commonly used technique to detoxify Cr(VI)from soil;however,it's challenging to remove the reduced Cr from soil to prevent its re-oxidation.This work explored a natural magnetic composite for the remediation,mineralization,and magnetic removal of Cr(VI)from the soil.It consists of 77%magnetite and 23%pyrrhotite with strong magnetic properties.A series of characterization tests show that composites of magnetite and pyrrhotite are interlaced and closely bonded,and contain no other heavy metals.The Cr(VI)removal rate increases with the decrease in composite particle size.A kinetics study shows that removing Cr(VI)by the composite is likely through both adsorption and reduction.Acidic conditions are more favorable for the immobilization of Cr(VI),at 45.8 mg Cr(VI)removal per g of composite at pH 2.After 100 days of in-situ treatment by the composite,the leaching concentration(TCLP)of Cr(VI)-contaminated soil was 1.95 mg L^(-1),which was below the EPA limit(5 mg L^(-1))for hazardous waste.After reduction,the composite was separated from soil by magnetic characteristics,and 58.2%of Cr was found mineralized.The post-treatment Cr-containing composite was analyzed by SEM-EDS,Raman spectra,and XPS.It was found that Cr was mineralized on the surface of the composite in the form of Cr(OH)3,Cr_(2)O_(3),and FeCr_(2)O_(4).This indicates that reduction and mineralization of Cr(VI)in the soil can be accomplished through natural magnetic mineral composites and easily separated and removed from the soil,achieving a complete soil cleanup.Xiang Ji Chuanye Zhou Liangxi Chen Yanzhang Li Tianci Hua Yan Li Changqiu Wang Song Jin Hongrui Ding Anhuai Lu 2022Environmental Science and Ecotechnology2022,,3:0
15Shear sliding of rough-walled fracture surfaces under unloading normal stress显示文摘Through high-precision engraving,self-affine sandstone joint surfaces with various joint roughness coefficients(JRC=3.21e12.16)were replicated and the shear sliding tests under unloading normal stress were conducted regarding various initial normal stresses(1e7 MPa)and numbers of shearing cycles(1 e5).The peak shear stress of fractures decreased with shear cycles due to progressively smooth surface morphologies,while increased with both JRC and initial normal stress and could be verified using the nonlinear Barton-Bandis failure criterion.The joint friction angle of fractures exponentially increased by 62.22%e64.87%with JRC while decreased by 22.1%e24.85%with shearing cycles.After unloading normal stress,the sliding initiation time of fractures increased with both JRC and initial normal stress due to more tortuous fracture morphologies and enhanced shearing resistance capacity.The surface resistance index(SRI)of fractures decreased by 4.35%e32.02%with increasing shearing cycles due to a more significant reduction of sliding initiation shear stress than that for sliding initiation normal stress,but increased by a factor of 0.41e1.64 with JRC.After sliding initiation,the shear displacement of fractures showed an increase in power function.By defining a sliding rate threshold of 5105 m/s,transition from“quasi-static”to“dynamic”sliding of fractures was identified,and the increase of sliding acceleration steepened with JRC while slowed down with shearing cycles.The normal displacement experienced a slight increase before shear sliding due to deformation recovery as the unloading stress was unloaded,and then enhanced shear dilation after sliding initiation due to climbing effects of surface asperities.Dilation was positively related to the shear sliding velocity of fractures.Wear characteristics of the fracture surfaces after shearing failure were evaluated using binary calculation,indicating an increasing shear area ratio by 45.24%e91.02%with normal stress.Qian Yin Chun Zhu Jiangyu Wu Hai Pu Qi Wang Yuanchao Zhang Hongwen Jing Tianci Deng 2023Journal of Rock Mechanics and Geotechnical Engineering2023,15,10:0
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