检索结果-南通市图书馆

Net effect of air pollution controls on health risk in the Beijing-Tianjin-Hebei region during the 2022 winter Olympics and.Paralympics

引用

Journal of Environmental Sciences 2024年第1期135卷 560-569页

作者： changqing lin Peter K.K.louie Alexis K.H.lau Jimmy c.H.Fung Zibing Yuan Minghui Tao Xuguo Zhang md.Shakhaoat Hossain chengcai li Xiang Qian lao Division of Environment and.Sustainability The Hong Kong University of Science and TechnologyHong KongChina Environmental Protection Department Hong Kong Government SARHong KongChina Department of civil and.Environmental Engineering The Hong Kong University of Science and TechnologyHong KongChina Guangdong-Hongkong-Macao Joint laboratory of collaborative Innovation for Environmental Quality The Hong Kong University of Science and TechnologyHong KongChina Department of Mathematics The Hong Kong University of Science and TechnologyHong KongChina School of Environment and.Energy South China University of TechnologyGuangzhou 510006China Hubei Key laboratory of critical Zone Evolution School of Geography and Information EngineeringChina University of GeosciencesWuhan 430074China Department of Public Health and.Informatics Jahangirnagar UniversityDhaka 1342Bangladesh Department of Atmospheric and.Oceanic Sciences School of PhysicsPeking UniversityBeijing 100871China Jockey club School of Public Health and.Primary care The Chinese University of Hong KongHong KongChina

Due to the non-linearity in ozone(O_(3))formation,reducing the emission of nitrogen oxides(NO_(x))may increase O_(3) *** the counteractive O_(3) response to NO_(x) reduction,overall impact of air pollution controls can be ambiguous when the assessments focus on the changes in pollutant *** this study,a risk-based method was used to gauge the net effect of air pollution controls on mortality risk in the Beijing–Tianjin–Hebei(BTH)region during the 2022 Winter Olympics and.Paralympics(WOP).This mega-event presents a unique opportunity to investigate the efficacy of deep cuts in pollutant *** show that O_(3) concentrations greatly increased as nitrogen dioxide(NO_(2))concentrations decreased in the *** to the active photochemical formations,O_(3) became the dominant pollutant that affected human health during the *** the substantial O_(3) increases,the health benefits of NO_(2) reductions overwhelmed the adverse health effects of O_(3) increases in most regions of the BTH(at 81 out of 112 stations).After considering the impacts of particulate matter,the integrated health risk of air pollution mixtures declined almost everywhere in the *** results underscore the great necessity of changing the assessment paradigm of pollution control from using concentration-based methods to using risk-based *** with the carbon neutrality policy,stringent control of NO_(x)emission from combustion sources is a promising way to achieve synergistic control solutions for air pollution and.climate change.

关键词： Ozone Nitrogen dioxide Health risk carbon neutrality Mega-events

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Heat and.Mass Transfer on Non-Newtonian Peristaltic Flow in a channel in Presence of Magnetic Field: Analytical and.Numerical Analysis

引用

Applied Mathematics 2024年第8期15卷 568-583页

作者： md. Maruf Hasan md. Enamul Karim md. Abdus Samad Department of Mathematics Comilla University Comilla Bangladesh Department of Applied Mathematics University of Dhaka Dhaka Bangladesh

A study has been arranged to investigate the flow of non-Newtonian fluid in a vertical asymmetrical channel using peristalsis. The porous medium allows the electrically conductive fluid to flow in the channel, while a uniform magnetic field is applied perpendicular to the flow direction. The analysis takes into account the combined influence of heat and.mass transfer, including the effects of Soret and.Dufour. The flow’s non-Newtonian behavior is characterized using a casson rheological model. The fluid flow equations are examined within a wave frame of reference that has a wave velocity. The analytic solution is examined using long wavelengths and.a small Reynolds number assumption. The stream function, temperature, concentration and.heat transfer coefficient expressions are derived. The bvp4c function from MATlAB has been used to numerically solve the transformed equations. The flow characteristics have been analyzed using graphs to demonstrate the impacts of different parameters.

关键词： Stream Function Mass Transfer Vertical channel casson Fluid

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genome-Wide Analysis for Yield-Related Agronomic and.Biochemical Traits of chinese and.Bangladeshi Grass Pea Genotypes Using SSR Markers

引用

Phyton-International Journal of Experimental Botany 2024年第8期93卷 1781-1804页

作者： md.Mosiur Rahman md.Ruhul Quddus Quanle Xu Muhammad Malek Hossain Rong liu Mengwei li Xin Yan Guan li Yishan Ji chenyu Wang Ashutosh Sarker Tao Yang Xuxiao Zong md.Monoar Hossain Saleh Alfarraj Mohammad Javed Ansari Sagar Maitra Akbar Hossain Institute of crop Sciences Chinese Academy of Agricultural Sciences(CAAS)Beijing100081China Pulses Research center Bangladesh Agricultural Research Institute(BARI)Gazipur1701Bangladesh Hybrid Rice Division Bangladesh Rice Research Institute(BRRI)Gazipur1701Bangladesh Northwest Agriculture&Forestry University Yangling712199China International center for Agricultural Research in the Dry Areas(IcARDA) New Delhi110012India Wheat Breeding Division Bangladesh Wheat and Maize Research InstituteDinajpur5200Bangladesh Zoology Department College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia Department of Botany Hindu College Moradabad(Mahatma Jyotiba Phule Rohilkhand UniversityBareilly)Moradabad244001India Department of Agronomy and.Agroforestry Centurion University of Technology and ManagementOdisha761211India Soil Science Division Bangladesh Wheat and Maize Research InstituteDinajpur5200Bangladesh

Grass pea(lathyrus sativus l.)is an imperative food crop cultured in dryland.agricultural *** is a vital source of dietary protein to millions of populaces living in low-income countries in South-East Asia and.*** study highlights the improvement of genomic properties and.their application in marker-trait relationships for 17 yield-related characters in 400 grass pea genotypes from china and.*** characters were assessed via 56 polymorphic markers using general linear model(GlM)(P+G+Q)and.mixed linear model(MlM)(P+G+Q+K)in the tassel software based on the linkage disequilibrium and.population structure *** structure analysis showed two major groups and.one admixed group in the *** significant loci pairs of linkage disequilibrium(lD)mean value(D′)was 0.479.A total of 99 and.61 marker-trait associations in GlM and.MlM models allied to the 17 traits were accepted at a 5%level of *** these markers,21 markers were associated with more than one trait;12 marker-trait associations passed the Bonferroni correction *** models found six markers c41936,c39067,c34100,c47146,c47638,and.c43047 significantly associated with days to maturity,flower color,plant height,and.seed per pod were detected in the Hebei and.liaoyang location(p≤0.01),and.the interpretation rate(R^(2)value)11.2%to 43.6%.conferring to the consequences,the association analysis methodology may operative system for quantitative,qualitative,and.biochemical traits related to gene position mapping and.support breeders in improving novel approaches for advancing the grass pea quality.

关键词： Grass pea dryland.agriculture genome-wide association yield contributing traits SSR markers

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Activation of cerebral Ras-related c3 botulinum toxin substrate(Rac) 1 promotes post-ischemic stroke functional recovery in aged mice

引用

Neural Regeneration Research 2024年第4期19卷 881-886页

作者： Fan Bu Jia-Wei Min md Abdur Razzaque Ahmad El Hamamy Anthony Patrizz li Qi Akihiko Urayama Jun li Department of Neurology University of Texas Health Science Center Department of Neurology&Psychology The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine

Brain functional impairment after stroke is common;however,the molecular mechanisms of post-stroke recovery remain *** is well-recognized that age is the most important independent predictor of poor outcomes after stroke as older patients show poorer functional outcomes following *** evidence suggests that axonal regeneration and.angiogenesis,the major forms of brain plasticity responsible for post-stroke recovery,diminished with advanced *** studies suggest that Ras-related c3 botulinum toxin substrate(Rac)1 enhances stroke recovery as activation of Rac1 improved behavior recovery in a young mice stroke ***,we investigated the role of Rac1 signaling in long-term functional recovery and.brain plasticity in an aged(male,18 to 22 months old c57Bl/6J)brain after ischemic *** found that as mice aged,Rac1 expression declined in the *** overexpression of Rac1,using lentivirus encoding Rac1 injected day 1 after ischemic stroke,promoted cognitive(assessed using novel object recognition test)and.sensorimotor(assessed using adhesive removal tests)recovery on days 14–*** was accompanied by the increase of neurite and.proliferative endothelial cells in the periinfarct zone assessed by *** a reverse approach,pharmacological inhibition of Rac1 by intraperitoneal injection of Rac1 inhibitor NSc23766 for 14 successive days after ischemic stroke worsened the outcome with the reduction of neurite and.proliferative endothelial ***,Rac1 inhibition reduced the activation of p21-activated kinase 1,the protein level of brain-derived neurotrophic factor,and.increased the protein level of glial fibrillary acidic protein in the ischemic brain on day 28 after *** work provided insight into the mechanisms behind the diminished plasticity after cerebral ischemia in aged brains and.identified Rac1 as a potential therapeutic target for improving functional recovery in the older adults after stroke.

关键词： aging angiogenesis brain-derived neurotrophic factor(BDNF) cerebral ischemia cognitive recovery neurite Pak1 Rac1 sensorimotor recovery

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fine-tuning electronic structure of N-doped graphitic carbon-supported co-and.Fe-incorporated Mo_(2)c to achieve ultrahigh electrochemical water oxidation activity

引用

carbon Energy 2024年第7期6卷 134-149页

作者： md.Selim Arif Sher Shah Hyeonjung Jung Vinod K.Paidi Kug-Seung lee Jeong Woo Han Jong Hyeok Park Department of chemical and.Biomolecular Engineering Yonsei UniversitySeoulRepublic of Korea Department of chemistry University of North BengalRaja RammohunpurDarjeelingWest BengalIndia Department of Materials Science and.Engineering Research Institute of Advanced MaterialsSeoul National UniversitySeoulRepublic of Korea Pohang Accelerator laboratory Beamline DivisionPohangRepublic of Korea European Synchrotron Radiation Facility France

Mo_(2)c is an excellent electrocatalyst for hydrogen evolution reaction(HER).However,Mo_(2)c is a poor electrocatalyst for oxygen evolution reaction(OER).Herein,two different elements,namely co and.Fe,are incorporated in Mo_(2)c that,therefore,has a finely tuned electronic structure,which is not achievable by incorporation of any one of the ***,the resulting electrocatalyst co_(0.8)Fe_(0.2)-Mo_(2)c-80 displayed excellent OER catalytic performance,which is evidenced by a low overpotential of 214.0(and.246.5)mV to attain a current density of 10(and.50)mA cm^(-2),an ultralow Tafel slope of 38.4 mV dec^(-1),and.longterm stability in alkaline *** data demonstrates that co_(0.8)Fe_(0.2)-Mo_(2)c-80 requires the lowest overpotential(1.00 V)for OER and.co centers to be the active *** ultrahigh catalytic performance of the electrocatalyst is attributed to the excellent intrinsic catalytic activity due to high Brunauer-Emmett-Teller specific surface area,large electrochemically active surface area,small Tafel slope,and.low chargetransfer resistance.

关键词： fine-tuning electronic structures heteronanostructures Mo_(2)c multimetal(co/Fe) oxygen evolution reaction

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Exploring the Role of Serum cystatin c in Early Detection of Acute Kidney Injury among On-Pump cardiac Surgery Patients: A Single-center Investigation in Bangladesh

引用

World Journal of cardiovascular Diseases 2024年第6期14卷 363-373页

作者： md. Ahaduzzaman md. Abir Tazim chowdhury Munama Magdum md. Saiful Islam Khan Satyajit Sharma Monoj Tiwari md. Abul Bashar Maruf md. Alauddin Omar Sadeque Khan md. Mostafizur Rahman Mirza md. Nazmus Saquib Department of cardiothoracic and.Vascular Surgery Evercare Hospital Dhaka Dhaka Bangladesh Department of Preventive and.Social Medicine National Institute of Preventive and Social Medicine Dhaka Bangladesh Department of cardiothoracic Anesthesia Evercare Hospital Dhaka Dhaka Bangladesh Department of cardiac Surgery National Heart Foundation Hospital & Research Institute Dhaka Bangladesh Department of cardiovascular and.Thoracic Surgery B.P. Koirala Memorial Cancer Hospital Bharatpur Chitwan Nepal Department of cardiac Surgery United Hospital Limited Dhaka Bangladesh Department of cardiac Surgery Bangabandhu Sheikh Mujib Medical University Dhaka Bangladesh Department of cardiac Surgery Ibrahim Cardiac Hospital & Research Institute Dhaka Bangladesh

Background: Acute Kidney Injury (AKI) stand. as a prominent postoperative complication in on-pump cardiac surgery, with repercussions on morbidity, mortality, and.hospitalization duration. current diagnostic criteria relying on serum creatinine levels exhibit a delayed identification of AKI, prompting an exploration of alternative biomarkers. Aims and.Objectives: This study is designed to overcome diagnostic constraints and.explore the viability of serum cystatin c as an early predictor of Acute Kidney Injury (AKI) in individuals undergoing on-pump cardiac surgery. The investigation aims to establish the relationship between serum cystatin c levels and.the onset of AKI in patients subjected to on-pump cardiac surgery. Primary objectives involve the assessment of the diagnostic effectiveness of serum cystatin c, its comparison with serum creatinine, and.the exploration of its potential for the early identification and.treatment of AKI. Methodology: conducted as a single-center study at the cardiac surgery department of BSMMU in Bangladesh from September 2020 to August 2022, a comparative cross-sectional analysis involved 31 participants categorized into No AKI and.AKI groups based on Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Data collection encompassed preoperative, post-cBP (cardiopulmonary bypass) conclusion at 2 hours, postoperative day 1, and.postoperative day 2 intervals. Statistical analyses included chi-squared tests, independent Student’s t-tests, and.one-sample t-tests. Significance was set at P Results: The study revealed no significant differences in baseline characteristics between the No AKI and.AKI groups, except for cPB time and.cross-clamp time. Serum cystatin c levels in the AKI group exhibited statistical significance at various time points, highlighting its potential as an early detector. conversely, Serum creatinine levels in the AKI group showed no statistical significance. The Receiver Operating characteristic (ROc) curve analy

关键词： Acute Kidney Injury (AKI) On-Pump cardiac Surgery Serum cystatin c Serum creatinine Diagnostic Biomarkers Early Detection cardiopulmonary Bypass Single-center Study Bangladesh

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of Different Mulch Materials on Yield and.Nutrition Profile of common capsicum (capsicum annuum) cultivars in Bangladesh

引用

Agricultural Sciences 2024年第2期15卷 246-255页

作者： Prince Biswas md. Abubakar Siddik md. Shariful Islam Mohammad Zahir Ullah md. Shamsuzzoha Hasina Akter Akm Maksudul Alam Mominul Hauque Robin Nutrition Analysis Division Bangladesh Institute of Research and Training on Applied Nutrition Araihazar Bangladesh Department of crop Botany Faculty of Agriculture Habiganj Agricultural University Habiganj Bangladesh Field crop Division Bangladesh Institute of Research and Training on Applied Nutrition Araihazar Bangladesh Medicine crop Wing Bangladesh Institute of Research and Training on Applied Nutrition Araihazar Bangladesh Department of Statistics University of Dhaka Dhaka Bangladesh Department of Agricultural Extension Upazila Agriculture Office Habiganj Bangladesh Department of Agricultural chemistry Sher-e-Bangla Agricultural University Dhaka Bangladesh

capsicum is a nutritious vegetable and.its cultivation in farms is getting popular in Bangladesh. Although many efforts have lain to explore better yielding and.nutritionally rich cultivars with suitable modern cultivation techniques but still have to find the desired outcome. Thus, it’s necessary to conduct further research to identify the high-yielding and.nutritious capsicum cultivars in Bangladesh. An experiment was conducted from July 2021 to June 2022 at the Bangladesh Institute of Research and.Training on Applied Nutrition (BIRTAN) research field with three cultivars of capsicum: B0 = california Wonder, B1 = BARI Misti Morich-1 and.B2 = BARI Misti Morich-2 and.three mulching: T0 = No mulching, T1 = Water hyacinth, T2 = Poly Mulching in rand.mized complete block design with three replications to identify better quality capsicum cultivar and.suitable mulching material. Among cultivars the BARI Misti Morich-2 (B2) showed increased agronomic parameters like number of branches and.effective branches per plant, leaves length and.width, consequently yield and.yield contributing traits were also enhanced like fruits per plant, fruit length, fruit diameter and.yield per plant (25.97%, 4.54%, 3.64% and.21.43%, respectively). Poly Mulching (T2) increased agronomic traits, yield traits and.yield (0.61 kg) than BARI Misti Morich-1 (T1). The combined effect of B2T2 increased the number of branches per plant, effective branches per plant, leaves length and.breadth by 40%, 90%, 15.57% and.26.22%, respectively, hence resulting in an increased yield of 20%. BARI Misti Morich-2 cultivar showed an increase in Fe, Zn and.Vitamin-c content of 26.24% and.23.10%, 8.82% and.5.14%, and.6.03% and.5.74% than B0 and.B1 cultivars, respectively. Therefore, BARI Misti Morich-2 exhibited the improved agronomic, yield and.nutritional traits of capsicum under poly mulching a

关键词： capsicum cultivars Mulch Materials Yield Yield contributing Traits Nutritional Quality

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Zoonotic human liver flukes,a type 1 biocarcinogen,in freshwater fishes:genetic analysis and.confirmation of molluscan vectors and.reservoir hosts in Bangladesh

引用

Infectious Diseases of Poverty 2024年第3期13卷 73-88页

作者： Sharmin Shahid labony md.Abdul Alim Muhammad Mehedi Hasan md.Shahadat Hossain Sharmin Akter Joydeep Paul Thahsin Farjana md.Haydar Ali Mohammad Zahangir Alam Takeshi Hatta Hayato Kawada Keiko Mizutani Naotoshi Tsuji null Anisuzzaman Department of Parasitology Faculty of Veterinary ScienceBangladesh Agricultural UniversityMymensingh 2202Bangladesh Department of Fisheries Technology Faculty of FisheriesBangladesh Agricultural UniversityMymensingh 2202Bangladesh Department of Biotechnology School of Life Sciences&BiotechnologyAdamas UniversityBarasat-Barrackpore RdJagannathpurKolkataWest Bengal 700126India Department of Pathology and.Parasitology Hajee Mohammad Danesh Science and Technology UniversityDinajpur 5200Bangladesh Department of Parasitology and.Tropical Medicine Kitasato University School of Medicine1-15-1 KitasatoMinamiSagamiharaKanagawa 252-0374Japan Department of Molecular and.cellular Parasitology Kitasato University Graduate School of Medical Sciences1-15-1 KitasatoMinamiSagamiharaKanagawa 252-0373Japan

Background Opisthorchiid flukes,particularly Opisthorchis viverrini,Opisthorchis felineus,clonorchis sinensis,and.Metorchis *** the most common fish-borne zoonotic human liver flukes(hlFs).liver fluke infections are more prevalent in resource-deprived and.underprivileged *** herein estimated the prevalence of the metacercariae(Mc)of major hlFs in common large freshwater fishes(lFWF)marketed for human consumption from some selected areas of Bangladesh along with detection of their molluscan vectors and.*** The current status of fish-borne zoonotic hlF infections in lFWF was investigated along with their molluscan vectors and.mammalian reservoir hosts in Mymensingh and.Kishoreganj in Bangladesh from July 2018-June 2022 using conventional and.multiple molecular techniques,such as PcR,PcR-restriction fragment length polymorphism(RFlP),sequencing,and.bioinformatic *** infection rate of fishes was analyzed using the Z-test and.the loads of Mc were compared using the chi-squared(χ^(2))*** The Mc of ***,Opisthorchis spp.,and.Metorchis *** detected in 11 species of common and.popular *** lFWF,the estimated prevalence was 18.7%and.the mean load was 137.4±149.8 Mc per 100 g of *** prevalence was the highest(Pchanna punctata,63.6%).The highest rate of infection(Pc of ***(11.8%).Metacercariae were almost equally(P>0.05)distributed between the head and.body of *** infection rate was slightly higher in cultured(19.6%)*** Mc of ***,***,***,and.Metorchis orientalis in fishes were confirmed using PcR,PcR-RFlP and.*** cercariae of opisthorchiid(Pleurolophocercus cercariae)flukes were only recovered from Bithynia spp.(3.9%,42 out of 1089).The ova of hlFs from dogs(4.3%,5 out of 116)and.cats(6.0%,6 out of 100),and.adult flukes(***)from ducks(41.1%113 out of 275)were *** The Mc of

关键词： Human liver fluke Freshwater fish Molluscan vector Reservoir host Bangladesh

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Toxicological and.life-cycle Perspectives on Waste-Derived Nanoparticles

引用

Journal of Materials Science and.chemical Engineering 2024年第8期12卷 43-68页

作者： Irshad Ahmad md Fahimul Hassan Weqar Ahmad Siddiqui Department of Applied Science & Humanities Faculty of Engineering & Technology Jamia Millia Islamia University New Delhi India Department of chemistry C.M. Science College Lalit Narayan Mithila University Darbhanga India

Many nanoparticles have been created over the last few decades using a variety of techniques and.used to develop environmental technology, including water treatment, the detection of persistent contaminants, and.soil and.water remediation. The studies of alternative inputs for nanoparticle production as well as the use of green synthesis techniques are driven by the field of materials science and.engineering’s growing interest in increasing the sustainability of the processes involved in their production. In this paper, we begin by providing an overview of the fundamental principles of producing nanoparticles from different sources, such as plastic, electronic, metal, and.industrial waste. We elaborate on key facts of waste identification as a workable input for the treatment and.recovery of metal and.carbon-based nanoparticles. We next go over several controlling factors that play a role in creating nanoparticles, pointing out probable conclusions as we go. Then, we show some instances of waste-derived nanoparticles used in a proof-of-concept experiment of technology for applications in water quality and.safety. Before scaling up production and.implementing waste-derived nanoparticles, there are several present problems from the toxicological and.life-cycle perspectives that must be taken into account.

关键词： Industrial Waste Plastic Trash Metal Waste carbon Nanoparticles Nanoparticle-Enabled Technologies Electronic-Waste

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Thermal properties and.high-temperature ablation of high-entropy (Ti_(0.25)V_(0.25)Zr_(0.25)Hf_(0.25))B_(2) coating on graphite substrate

引用

Journal of Advanced ceramics 2024年第8期13卷 1268-1281页

作者： Ana c.Feltrin Daniel Hedman Farid Akhtar Division of Materials Science Lulea University of TechnologyLulea 97187Sweden center for Multidimensional carbon Materials(cMcM) Institute for Basic Science(IBS)Ulsan 44919Republic of Korea

An entropy-stabilized multicomponent ultrahigh-temperature ceramic(UHTc)coating,(Ti_(0.25)V_(0.25)Zr_(0.25)Hf_(0.25))B_(2),on a graphite substrate was in-situ sintered by spark plasma sintering(SPs)from constituent transition metal diboride ***(Ti_(0.25)V_(0.25)Zr_(0.25)Hf_(0.25))B_(2) coating had a hardness of 31.2±2.1 GPa and.resisted 36.9 GPa of stress before delamination,as observed at the *** temperature-dependent thermal properties of the multicomponent diboride(Ti_(0.25)V_(0.25)Zr_(0.25)Hf_(0.25))B_(2) were obtained by molecular dynamics(md)simulations driven by a machine learning force field(MlFF)trained on density functional theory(DFT)*** thermal conductivity,density,heat capacity,and.coefficient of thermal expansion obtained by the md simulations were used in time-dependent thermal stress finite element model(FEM)*** low thermal conductivity(lticomponent diboride coupled with its similar coefficient of thermal expansion to that of graphite indicated that stresses of less than 10 GPa were generated at the interface at high temperatures,and.therefore,the coating was mechanically resistant to the thermal stress induced during *** experiments at 220℃ showed that the multicomponent diboride coating was resistant to thermal stresses with no visible cracking or *** ablation mechanisms were mechanical denudation and.evaporation of B_(2)O_(5) and.light V-Ti oxides,which caused a decrease in the mass and.thickness of the coating and.resulted in mass and.linear ablation rates of-0.51 mg·s^(-1) and.-1.38μm·s^(-1),respectively,after 60 *** findings demonstrated the thermal and.mechanical stability of multicomponent entropy-stabilized diborides as coatings for carbon materials in engineering components under extreme environments.

关键词： entropy-stabilized diborides ultrahigh temperature ceramics molecular dynamics(md)simulations density functional theory(DFT) ablation properties

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：