检索结果-内蒙古大学图书馆

Journal of Structural and Construction Engineering 2025年第828期90卷 230-239页

作者： Satoshi, Kake Yuji, Ishikawa Takenaka Research & Development Institute Japan College of System Engineering and Science Shibaura Institute of Technology Japan

The authors propose a new defined tensile stress distribution for steel fiber reinforced concrete (SFRC) to evaluate the flexural strength of SFRC beams. It is a simplified formula based on the SFRC tensile stress – tensile strain relationship curves. This study confirmed that the flexural strength of SFRC beams is influenced by the orientation factor of steel fibers which is in turn affected by the fiber amount. The authors also propose a formula for this orientation factor expressed by the fiber volume ratio. Using these proposed formulae, the flexural strength (allowable, yielding, ultimate levels) of SFRC beams could be accurately evaluated. © 2025 Architectural institute of Japan. All rights reserved.

关键词： Tensile stress

来源：评论

学校读者我要写书评

暂无评论

Investigation on environmental factors contributing to bispecific antibody stability and the reversal of self-associated aggregates

引用

Bioresources and Bioprocessing 2024年第1期11卷 1084-1101页

作者： Nattha Ingavat Nuruljannah Dzulkiflie Jia Min Liew Xinhui Wang Eunice Leong Han Ping Loh Say Kong Ng Yuansheng Yang Wei Zhang Downstream Processing Group Bioprocessing Technology InstituteAgency for ScienceTechnology and Research(A*STAR)SingaporeSingapore Animal Cell Bioprocessing Group Bioprocessing Technology InstituteAgency for ScienceTechnology and Research(A*STAR)SingaporeSingapore Cell Line Development Group Bioprocessing Technology InstituteAgency for ScienceTechnology and Research(A*STAR)SingaporeSingapore

Bispecific antibodies(bsAbs)hold promises for enhanced therapeutic potential surpassing that of their parental monoclonal ***,bsAbs pose great challenges in their manufacturing,and one of the common reasons is their susceptibility to *** on previous studies demonstrating the functionality and potential manufacturability of Fab-scFv format bsAb,this investigation delved into the impact of environmental factors-such as pH,buffer types,ionic strength,protein concentrations,and temperatures-on its stability and the reversal of its self-associated *** acidic,low-salt conditions were found optimal,ensuring bsAb stability for 30 days even at elevated temperature of 40°***,these conditions facilitated the reversal of its self-associated aggregates to monomers during the initial 7-day incubation *** findings underscore the robustness and resilience of Fab-scFv format bsAb,further confirming its potential manufacturability despite its current absence as commercial products.

关键词： Bispecific antibody Fab-scFv Stability Reversible-self association Environmental factors

来源：评论

学校读者我要写书评

暂无评论

Study on theoretical model for electrical explosion resistivity of Al/Ni reactive multilayer foil

引用

Defence technology（防务技术） 2024年第2期32卷 348-356页

作者： Zehao Wang Tao Wang Pengfei Xue Mingyu Li Qingxuan Zeng State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing 100081China China Ship Development and Design Center Wuhan 430064China

Al/Ni reactive multilayer foil(RMF)possesses excellent comprehensive properties as a promising substitute for traditional Cu bridge.A theoretical resistivity model of Al/Ni RMF was developed to guide the optimization of ***/Ni RMF with different bilayer thicknesses and bridge dimensions were prepared by MEMS technology and electrical explosion tests were carried *** to physical and chemical reactions in bridge,the electrical explosion process was divided into 5 stages:heating of condensed bridge,vaporization and diffusion of Al layers,intermetallic combination reaction,intrinsic explosion,ionization of metal gases,which are obviously shown in measured voltage *** of interface and grain boundary scattering on the resistivity of film metal were *** on variations of substance and state,the resistivity was developed as a function of temperature at each *** explosion curves were calculated by this model at different bilayer thicknesses,bridge dimensions and capacitor voltages,which showed an excellent agreement with experimental ones.

关键词： Al/Ni reactive multilayer foil Electrical explosion Resistivity model Phase transition Calculation

来源：评论

学校读者我要写书评

暂无评论

Gelatinized starch as a low-cost and bifunctional binder enables shuttle-free aqueous zinc-iodine batteries

引用

Rare Metals 2024年第12期43卷 6351-6361页

作者： Zheng-Tai Yu Zong-Shuai Gong Rui-Hang Wen Ya-Jun Hou Zhi-Qiang Luo Zhi-Hao Yuan Ning Zhang School of Materials Science and Engineering Tianjin University of TechnologyTianjin300384China College of Chemistry and Materials Science Key Laboratory of Analytical Science and Technology of Hebei ProvinceInstitute of Life Science and Green DevelopmentHebei UniversityBaoding071002China

Rechargeable aqueous zinc-iodine(Zn-I_(2))batteries are widely regarded as a promising contender for energy-storage devices,due to their intrinsic safety,low cost,and high ***,the severe shuttle effect of polyiodides and the large volume change of I_(2)cathode induce severe capacity loss and poor electrochemical reversibility,hindering their commercial ***,we report that the low-cost gelatinized starch(Gstarch)can be used as a bifunctional binder for Zn-I_(2)batteries to circumvent the above problems *** on both calculation and experimental data,it is demonstrated that the double-helix structure of G-starch with bothα-1,4-andα-1,6-glycosidic bonds can strongly interact with polyiodides to suppress the shuttle ***,the G-starch with multiple hydrogen-bonded cross-linking networks exhibits a much-enhanced adhesion ability and can buffer the volume expansion of active *** contrast,the traditional carboxymethyl cellulose sodium-based aqueous binder lacks these *** a result,the G-starch binder enables the aqueous Zn-I_(2)battery to achieve a high reversible capacity of212.4 mAh·g^(-1)at 0.2 A·g^(-1)after 1000 cycles and ultralong-cycling life over 48,000 cycles with 135.4 mAh·g^(-1)and 89.6%capacity retention at 2 A·g^(-1).This work develops a simple yet efficient strategy to construct highperformance Zn-I_(2)batteries.

关键词： Zn-I_(2)batteries Gelatinized starch Binder Shuttle effect Aqueous Zn metal batteries

来源：评论

学校读者我要写书评

暂无评论

Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation direction

引用

Defence technology（防务技术） 2024年第2期32卷 596-618页

作者： Hongfu Wang Yan Liu Fan Bai Chao He Yingliang Xu Qiang Zhou Chuan Xiao Fenglei Huang State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081China China Research and Development Academy of Machinery Equipment Beijing100089China Beijing Institute of Technology Chongqing Innovation Center Chongqing401120China

Taking CL-20(Hexanitrohexaazaisowurtzitane)-based aluminized explosives with high gurney energy as the research object, this research experimentally investigates the work capability of different aluminized explosive formulations when driving metal flyer plates in the denotation wave propagation *** research results showed that the formulations with 43 μm aluminum(Al) powder particles(The particle sizes of Al powder were in the range of 2~43 μm) exhibited the optimal performance in driving flyer plates along the denotation wave propagation direction. Compared to the formulations with Al powder 13 μm, the formulations with Al powder 2 μm delivered better performance in accelerating metal flyer plates in the early stage, which, however, turned to be poor in the later stage. The CL-20-based explosives containing 25% Al far under-performed those containing 15% Al. Based on the proposed quasi-isentropic hypothesis, relevant isentropy theories, and the functional relationship between detonation parameters and entropy as well as Al reaction degree, the characteristic lines of aluminized explosives in accelerating flyer plates were theoretically studied, a quasi-isentropic theoretical model for the aluminized explosive driving the flyer plate was built and the calculation methods for the variations of flyer plate velocity, Al reaction degree, and detonation product parameters with time and axial positions were developed. The theoretical model built is verified by the experimental results of the CL-20-based aluminized explosive driving flyer plate. It was found that the model built could accurately calculate the variations of flyer plate velocity and Al reaction degree over time. In addition, how physical parameters including detonation product pressure and temperature varied with time and axial positions was identified. The action time of the positive pressure after the detonation of aluminized explosives was found prolonged and the downtrend of the temperature was

关键词： Aluminized explosive Flyer plate experiment Quasi-isentropic theoretical model Al reaction Driving characteristics

来源：评论

学校读者我要写书评

暂无评论

High-speed penetration of ogive-nose projectiles into thick concrete targets:Tests and a projectile nose evolution model

引用

Defence technology（防务技术） 2024年第2期32卷 553-571页

作者： Xu Li Yan Liu Junbo Yan Zhenqing Shi Hongfu Wang Yingliang Xu Fenglei Huang State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081China Beijing Institute of Technology Chongqing Innovation Center Chongqing401120China China Research and Development Academy of Machinery Equipment Beijing100089China

The majority of the projectiles used in the hypersonic penetration study are solid flat-nosed cylindrical projectiles with a diameter of less than 20 *** study aims to fill the gap in the experimental and analytical study of the evolution of the nose shape of larger hollow projectiles under hypersonic *** the hypersonic penetration test,eight ogive-nose AerMet100 steel projectiles with a diameter of 40 mm were launched to hit concrete targets with impact velocities that ranged from 1351 to 1877 m/*** erosion of the projectiles was observed during high-speed penetration of heterogeneous targets,and apparent localized mushrooming occurred in the front nose of recovered *** examining the damage to projectiles,a linear relationship was found between the relative length reduction rate and the initial kinetic energy of projectiles in different penetration ***,microscopic analysis revealed the forming mechanism of the localized mushrooming phenomenon for eroding penetration,i.e.,material spall erosion abrasion mechanism,material flow and redistribution abrasion mechanism and localized radial upsetting deformation ***,a model of highspeed penetration that included erosion was established on the basis of a model of the evolution of the projectile nose that considers radial upsetting;the model was validated by test data from the literature and the present *** upon the impact velocity,v0,the projectile nose may behave as undistorted,radially distorted or *** to the effects of abrasion of the projectile and enhancement of radial upsetting on the duration and amplitude of the secondary rising segment in the pulse shape of projectile deceleration,the predicted DOP had an upper limit.

关键词： High-speed penetration Concrete target Erosion Projectile nose evolution model

来源：评论

学校读者我要写书评

暂无评论

AN ASSESSMENT OF FUEL-JET CHARACTERISTICS AND AUTOIGNITION DELAY FOR BIODIESEL B20 BY SIMULATION TOOLS

引用

UPB Scientific Bulletin, Series D: Mechanical Engineering 2025年第1期2025卷 33-46页

作者： Miron, Lucian Chiriac, Radu Ionescu, Radu Visan, Nicolae Adrian National University of Science and Technology Politehnica Bucharest Romania Research and Development Institute for Gas Turbines COMOTI Bucharest Romania

The use of biodiesel mixtures has become a part of everyday life. The current implementation of B7 biodiesel at the pump and the premise that the near future will make B20 biodiesel compulsory leads to the necessity of an in-depth analysis of how this type of fuel affects the jet characteristics and ignition delay in a compression ignition engine. An experimental and numerical study was carried out to analyze the mentioned characteristics of a tractor diesel engine at full load. Maximum torque and maximum power operating conditions were analyzed. An 3D CFD model was developed for jet characteristics, jet propagation, and ignition delay analysis. As a practical result of this study, the usage of biodiesel B20 fuel (with B7 as an intermediary) is not associated with a substantial change in efficiency and performance and it’s usage could lead to lower levels of emmissions. © 2025, Politechnica University of Bucharest. All rights reserved.

关键词： Diesel engines

来源：评论

学校读者我要写书评

暂无评论

Fully tunable Fabry-Pérot cavity based on MEMS Sagnac loop reflector with ultra-low static power consumption

引用

Microsystems & Nanoengineering 2024年第4期10卷 355-365页

作者： Young Jae Park Man Jae Her Youngjae Jeong Dong Ju Choi Dong Uk Kim Min Gi Lim Myung Seok Hong Hyug Su Kwon Kyoungsik Yu Sangyoon Han Department of Robotics and Mechatronics Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988Republic of Korea School of Electrical Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea Agency for Defense Development DaejeonRepublic of Korea

The Fabry-Pérot interferometer,a fundamental component in optoelectronic systems,offers interesting applications such as sensors,lasers,and *** this work,we show a tunable Fabry-Pérot cavity consisting of tunable Sagnac loop reflectors(SLRs)and phase shifters based on electrostatic microelectromechanical(MEMS)*** fabrication process of the device is compatible with the standard wafer-level silicon photonics fabrication *** electrostatic actuation mechanism provides well-balanced,scalable pathways for efficient tuning *** extinction ratio of the continuously tunable SLRs’reflectivity is larger than 20 *** 2πphase shifting is achieved,and response times of all the components are less than 25μ*** actuators have extremely low static power,measuring under 20 fW and the energy needed for tuning is both below 20 pJ.

关键词： tunable tuning interferometer

来源：评论

学校读者我要写书评

暂无评论

Oxygen vacancies-rich TiO_(2-x) enhanced composite polyurethane electrolytes for high-voltage solid-state lithium metal batteries

引用

Nano Research 2025年第4期18卷 228-237页

作者： Xiaoning Xu Fei Pei Wenjie Lin Jia Lei Yuhan Yang Henghui Xu Zhen Li Yunhui Huang State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Dongfeng Motor Corporation Research&Development Institute Wuhan 430058China

Due to the favorable interfacial stability with electrodes,excellent processability,and reasonable material cost,organic-inorganic composite solid-state electrolytes have attracted broad interests in the field of solid-state *** this study,we have developed a solid-state composite electrolyte with polyurethane(PU)as polymer matrix and TiO_(2-x) as nanofiller(denoted as PUL-TiO_(2-x)).The block copolymer PU features alternating soft and hard segments,which offers distinct advantages due to its unique structural *** soft segment of the block copolymer facilitates the dissociation of lithium salt,enabling the conduction of Li^(+),while the rich hydrogen bond network formed by the hard segment ensures the mechanical strength of the *** profusion of Lewis acid sites on the TiO_(2-x) surface facilitates interactions with ether oxygen groups and bistrifluoromethanesulfonimide(TFSI-)anions,thereby enhancing ionic conductivity(σ)and expanding the electrochemical stability window of the ***,the PUL-TiO_(2-x) electrolyte exhibits an impressiveσof 2.19×10^(-4) S·cm^(-1) at 40℃,a Li^(+)transference number of 0.47,and an electrochemical stability window of 4.98 *** resulting LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811)||Li battery demonstrates a specific capacity of 171 mAh·g^(-1) and exhibits excellent cycling stability,maintaining its performance over 270 cycles at 40℃.These findings underscore the immense potential of the PUL-TiO_(2-x) in advancing the development of high-performance all-solid-state lithium batteries.

关键词： polyurethane electrolyte composite polymer electrolytes high-voltage cathodes solid-state lithium metal batteries

来源：评论

学校读者我要写书评

暂无评论

A Hybrid MADM Approach for the Analysis of the Most Polluted Region

引用

IAENG International Journal of Applied Mathematics 2024年第1期54卷 47-57页

作者： Nusaf, A. Mohamed Kumaravel, R. Jayapragash, J. Department of Mathematics College of Engineering and Technology SRM Institute of Science and Technology Tamil Nadu Kattankulathur603203 India Department of Career Development Centre College of Engineering and Technology SRM Institute of Science and Technology Tamil Nadu Kattankulathur603203 India

In India, there are myriad causes for air pollution, and celebrations of a festival like Bhogi also significantly pollute the air. This study aims to analyse the air quality in the regions of Chennai, India, during the Bhogi festival from 2019 to 2021, based on multiple air pollutants. The study introduces a hybrid approach, namely the Analytical Hierarchy Process - Entropy - Technique for Order Preference by Similarity to an Ideal Solution (AHP-Entropy-TOPSIS), to analyse and rank the areas based on the quality of air. A combined approach of AHP and Entropy is employed to determine the weights of multiple air pollutants. The TOPSIS approach ranks the city areas and identifies the area with the worst air quality during the festival. The proposed model is validated by performing the Spearman’s rank correlation with three other existing Multi-Attribute Decision-Making (MADM) methods, namely Combinative Distance Based Assessment (CODAS), Weighted Aggregated Sum Product Assessment (WASPAS) and Multi- Objective Optimization on Basis of Ratio Analysis (MOORA). Sensitivity analysis is carried out to assess the effects of the priority weights and the dependency of the pollutants in ranking the regions. The highest air pollution level during the festival was seen in Ambattur (2019), Royapuram (2020), and Tondiarpet (2021) in their respective year. The results demonstrate the consistency and efficiency of the proposed approach. © 2024, International Association of Engineers. All rights reserved.

关键词： Entropy

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：