检索结果-内蒙古大学图书馆

4th International Symposium on Intelligent Robotics and Systems, ISoIRS 2024

作者： Ren, Weipeng Li, Jie Yang, Lijun Li, Kang Dong, Kui Shen, Jianwu Wang, Songli Zhao, Hu Shaanxi University of Science and Technology School of Mechanical and Electrical Engineering Xi'an China Xi'an Simitech Co. Ltd Research and Development Department Xi'an China Xi'an Simitech Co. Ltd Research and Development Department Xi'an China

ISBN: (纸本)9798350364798

The metal membrane based capacitive micro-pressure sensor shows high measurement accuracy, high sensitivity, and corrosion resistance, making it adaptable to extreme and harsh environments with diverse application scenarios. The design and manufacturing process of metal based capacitive micro-pressure sensors are complex, involving structural design, diaphragm welding, and circuit design, among which diaphragm welding is crucial for determining sensor's performance. A new method of welding membrane with low welding stresses are proposed in this manuscript. According to the method, the 0.035 mm thick inconel 600 membrane are successfully welded to bulk inconel 600. The distance between the membrane and bulk inconel is 350 μm, with the based capacitance of 2.9 pF. The leakage rate of the welding reaches 7.5×10-12 Pa·m3/s. A high-precision testing system with a capacity of 10 Torr are built and the variation of capacitance with pressure after welding are characterized. The exprement result shows that when the pressure changes from 1 Torr to 10 Torr, the capacitance changes from 2.9 pF to 12.1 pF with repeatability reaching 0.02%. The FEM results of COMSOL match the experimental results very well, and this welding method can be applied to any low stress thin film welding engineering practice. © 2024 IEEE.

关键词： Corrosion resistance

来源：评论

学校读者我要写书评

暂无评论

research on the dual development of campus themed speeches and ideological and political education in the era of all-media

Research on the dual development of campus themed speeches a...

引用

作者： Zeyang Hong Ying Huang Jiacheng Yu Zhijuan Jin Xinjie Wang Zhengbo He School of Management Wuhan Technology and Business University Hubei Business Service Development Research Center School of Economics and Management Hubei University of Technology

As China enters the era of "all-media" in which everything is interconnected through media,campus-themed speeches have become an irreplaceable extracurricular activity for ideological and political education among university students,providing an effective means for improving their quality and shaping their correct worldview,values,and outlook on the *** this context,how to integrate and drive the development of campus-themed speeches and ideological and political education has become a subject that needs to be *** paper analyzes the necessity of the dual drive development of campus-themed speeches and ideological and political education,discusses the challenges and opportunities faced during its development process,and provides empirical analysis through a study of 147 university student audience *** proposes countermeasures and suggestions to achieve the dual-drive development,aiming to support the theoretical and practical contributions in the field of campus-themed speeches and ideological and political education.

关键词： The era of all-media Campus thematic speeches Ideological and political education Dual-driven development

来源：评论

学校读者我要写书评

暂无评论

Modulating the electrode–electrolyte interface enables switchable selectivity in electrocatalytic furfural reduction

引用

Science China Chemistry 2024年第10期67卷 3193-3194页

作者： Jingfang Zhang Yi Huang Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education School of Chemical Engineering&PharmacyWuhan Institute of TechnologyWuhan 430205China College of Chemistry Central China Normal UniversityWuhan 430079China

Furfural(FF),an important bio-based platform molecule,can be valorized to high-value-added chemicals(e.g.,furfuryl alcohol(FA)or 2-methylfuran(MF))through catalytic hydrogenation[1].The traditional thermocatalytic transformation of FF always requires high-temperature and highpressure conditions[2].Accordingly,electrocatalytic hydrogenation is emerging as a promising approach for the selective reduction of FF to FA or MF under environmentally friendly and benign conditions.

关键词： hydrogenation electrolyte selectivity

来源：评论

学校读者我要写书评

暂无评论

The determination of sedimentary environment and associated energy in deep-buried marine carbonates:insights from natural gamma ray spectrometry log

引用

Frontiers of Earth Science 2024年第1期18卷 204-218页

作者： Jingyan LIU Qian CHANG Junlong ZHANG Hui CHAI Feng HE Yizan YANG Shiqiang XIA School of Energy Resources China University of Geosciences(Beijing)Beijing 100083China Exploration and Development Research Institute Daqing Oilfield CompanyPetroChinaDaqing 163712China China National Oil and Gas Exploration and Development Co. Ltd(CNODC)Beijing 100032China Beijing Research Institute of Uranium Geology Beijing 100029China College of Mining Engineering North China University of Science and TechnologyTangshan 063210China

It has always been challenging to determine the ancient sedimentary environment and associated energy in deep-buried marine *** energy represents the hydrodynamic conditions that existed when the carbonates were *** energy includes light and chemical energies in compounds and kinetic energy in currents and mass ***-buried marine carbonates deposited during the Ordovician depositional period in the eastern Tarim Basin result from a complex interplay of tectonics,sedimentation,and *** a result,determining the ancient sedimentary environment and associated energy is *** natural gamma-ray spectrometry(GRS)log(from 12 wells)is used in this paper to conduct studies on the sedimentary environment and associated energy in deep-buried marine *** findings show that the values of thorium(Th),uranium(U),potassium(K),and gamma-ray without uranium(KTh)in a natural GRS log can reveal lithological associations,mineral composition,diagenetic environment,stratigraphic water activity,and ancient climatic *** the Ordovician,quantitative analysis and determination of sedimentary environment energy are carried out using a comprehensive calculation of natural GRS log parameters in typical wells(penetrating through the Ordovician with cores and thin sections)of well GC4,well GC6,well GC7,and well *** results show that GRS log can determine different lithology associations in typical wells than a sieve residue ***,cores and thin sections can be used to validate the determination of lithology *** on the determination of lithology associations,the lithology associations that reflect the sedimentary environment and associated energy can be analyzed in a new ***,the sedimentary environment energy curve derived from a natural GRS log can reveal hydrodynamic fluctuations during depositional periods,which will aid in the discovery of carbonate reservoirs,establishing sequence stratigra

关键词： ancient sedimentary environment energy of sedimentary environment marine deep-buried carbonates natural GRS the Ordovician eastern Tarim Basin

来源：评论

学校读者我要写书评

暂无评论

Ultrasonic-assisted green synthesis and characterization of nano-hydroxyapatite from Cirrhinus molitorella fish scales bio-waste for biomedical applications

引用

Ceramics International 2025年第15期51卷 20452-20464页

作者： Swamiappan, Sathiskumar Xie, Xin Lu, Chengyu Peng, Xinsheng Dongguan Key Laboratory of Drug Design and Formulation Technology Biomedical Innovation Center Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs and School of Pharmacy Guangdong Medical University Dongguan523808 China

Herein, we demonstrate a facile green procedure to produce natural nano-hydroxyapatite (nHAp) using an ultrasonic-assisted method from Cirrhinus molitorella fish scale bio-waste. Characterization results confirmed the successful preparation of nHAp without any impurities. Further, X-ray diffraction (XRD) peaks matched the hydroxyapatite standard JCPDS 00–009–0432, which also confirmed the hexagonal pattern of nHAp. Fourier-transform infrared (FT-IR) spectroscopy analysis exhibited the existence of phosphate, hydroxyl, and B-type carbonate groups. The energy dispersive X-ray spectroscopy (EDX) was utilized to determine the calcium/phosphorous (Ca/P) molar ratio, which is 1.67. Further, the elemental composition of nHAp was identified using X-ray photoelectron spectroscopy (XPS) and EDX analysis. The surface area (111.96 m2 g−1), pore size (14.81 nm in diameter), and pore volume (0.4167 cm3 g−1) of prepared nHAp were confirmed by the Brunauer-Emmett-Teller (BET). Atomic force microscopy (AFM) was employed to measure the shape parameters and surface roughness, and it was confirmed that nHAp has a dominant spiky surface. Transmission electron microscopy (TEM) showed the agglomerated rod-like nanostructured morphology of the nHAp powder. Thermogravimetric analysis (TGA) results of nHAp exhibited excellent thermal stability and a low weight loss (9.7 %). The mechanical properties of nHAp were checked using the measurement of compressive strength value, which was 114 ± 4.70 MPa. The hemolysis rate of nHAp powders was less than 3 %;hence, nHAp powders can be considered non-hemolytic material. The MTT results indicate that the prepared nHAp is more biocompatible with human osteosarcoma (MG-63) cells, which shows excellent cell viability compared to commercial hydroxyapatite (cHAp). Moreover, nHAp encourages the development of MG-63 cells, which exhibit better Giemsa staining and alkaline phosphatase (ALP) activity than cHAp. The size, structure, functional groups, compressiv

关键词： X ray photoelectron spectroscopy

来源：评论

学校读者我要写书评

暂无评论

development Background and research Progress of UN-U3Si2 Composite Fuel 23rd

Development Background and Research Progress of UN-U3Si2 Com...

引用

23rd Pacific Basin Nuclear Conference, PBNC 2022

作者： Sun, Qiming Yang, Ye Li, Mingyang Ji, Pengbo Liu, Wentao CNNC Key Laboratory of Fabrication Technology of Fuel Assembly Baotou014035 China CNNC Key Laboratory of New Materials Research and Application Development Baotou014035 China China North Nuclear Fuel Co. Ltd. Baotou014035 China

ISBN: (纸本)9789811988981

After the Fukushima nuclear accident in 2011, Accident Tolerant Fuel (ATF) has become a research hotspot in the field of nuclear fuels, and the search for suitable fuel pellet materials is an important aspect of ATF research. Both UN and U3Si2 have the advantages of high uranium density and high thermal conductivity, and the thermal conductivity increases with the increase of temperature. However, they both have certain deficiencies, which limit their future applications in Pressurized Water Reactor (PWR). UN-U3Si2 composite pellet is one of the significant research directions of ATF pellets as it can precisely exploit the advantages of both while compensating for the disadvantages of UN’s poor water tolerance and U3Si2’s poor irradiation performance. This paper presents properties of UN and U3Si2, as well as the main advantages and fabrication processes of UN-U3Si2 composite pellet. The research progress of UN-U3Si2 composite pellet is reviewed, focusing on the composite pellet’s corrosion mechanism, and the influence of different mixing ratios and sintering methods on the pellet’s performance. Finally, the existing technical problems in the application of UN-U3Si2 composite pellet in PWR are analyzed and the preliminary solutions are proposed, which can provide reference for the research and development of UN-U3Si2 composite pellet and ATF pellets. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Pressurized water reactors

来源：评论

学校读者我要写书评

暂无评论

Experimental investigation on ice-breaking performance of a novel plasma striker

引用

Chinese Journal of Aeronautics 2022年第1期35卷 307-317页

作者： Tianxiang GAO Zhenbing LUO Yan ZHOU Shengke YANG Wenqiang PENG Xiong DENG Pan CHENG College of Aerospace Engineering National University of Defense TechnologyChangsha 410073China China Aerodynamics Research and Development Center Mianyang 621000China

Aircraft icing has long been a plague to aviation for its serious threat to flight ***,researches about a newly proposed deicing method based on Plasma Synthetic Jet Actuator(PSJA)have just *** meet the requirements of in-flight deicing,structure of PSJA needs to be *** paper completed the detailed design and experimental validation of a novel plasma striker,which was a modified version of *** of mass of the moving part and rod shapes on the ice-breaking performances were also ***,a“conical-nosed rod configuration”was *** purpose was to ensure a good ice-breaking performance of the plasma striker on long ice,by generating a splitting *** show that,though mass of the moving part was just several grams,ice-breaking performance was better when the mass was *** rectangular rod could generate an elliptical circumferential crack,whose major axis was parallel to the direction of the long side of the rectangular *** the“conical-nosed rod”concept was verified to be able to generate a splitting crack which can spread completely to the far end of long ice,and the crack direction was parallel to edge line of the *** general,the plasma striker has the advantages of simple structure,low energy consumption,little harm to the flow field and the aircraft *** will be carried out in future works to study in detail the working process of the plasma striker.

关键词： Conical shaped rod Deicing Experimental tests High-speed photography Ice fracture Plasma striker

来源：评论

学校读者我要写书评

暂无评论

Characterization and Synthesis of 2-Hydroxyethyl Acrylate-Encapsulated Pigments by Emulsion Polymerization with Excellent Color Fastness and Stability

引用

Arabian Journal for Science and Engineering 2024年第1期49卷 649-664页

作者： Shiu, Jia-Wei Chen, Chin-Wen Liu, Meng-An Rwei, Syang-Peng Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei 10608 Taiwan Research and Development Center for Smart Textile Technology National Taipei University of Technology Taipei 10608 Taiwan

We synthesized polymer-encapsulated pigments with excellent properties by using only one monomer, such as 2-hydroxyethyl acrylate (HEA). The polymer-encapsulated pigments were synthesized by emulsion polymerization with aqueous dispersions of the pigments (C.I. pigment red 112, C.I. pigment blue 15:3, or C.I. pigment yellow 155), monomers (2-hydroxyethyl acrylate, 4-methylstyrene, alpha-methylstyrene, styrene, or butyl acrylate), and an initiator (potassium persulfate or azobisisobutyronitrile). We discussed the core–shell particles (polymer-encapsulated pigments) with a morphology map of the polymer–pigment system. The polymer-encapsulated pigments were used to dye nylon 6, polyester, and cotton. The polymer-encapsulated pigments had particle sizes of less than 200 nm and excellent ratings for dry rubbing fastness, washing fastness, and handling. We believe that polymer-encapsulated pigments show promise for use in textile inks. © 2023, King Fahd University of Petroleum & Minerals.

关键词： Color fastness Emulsion polymerization Encapsulated pigment Handle

来源：评论

学校读者我要写书评

暂无评论

Facile fabrication of NiCo-hydroxysulfide nanosheets array for electrocatalytic urea oxidation

引用

Science China(Technological Sciences) 2025年第1期68卷 218-228页

作者： Jing ZOU Chang LIU Kun XIANG Qiong LI Shihao DAI Jizhou JIANG School of Chemistry and Environmental Engineering School of Environmental Ecology and Biological EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhan 430205China

Urea oxidation reaction(UOR)instead of anodic oxygen evolution reaction(OER)is considered an effective way to reduce energy consumption in electrocatalytic water splitting for hydrogen ***,the slow rate of reaction of UOR,which entails a procedure of transferring six electrons,has hindered its widespread ***,it is crucial to design highly effective electrocatalysts for the implementation of ***,a novel NiCo-hydroxysulfide(NiCo-HOS)electrocatalyst has been reported for UOR,which is obtained by the exchange of sulfur ions in NiCo layered double hydroxide(NiCo-LDH)nanosheets at room *** from the sulfurization process,the composition,electronic structure,and surface properties of electrocatalysts have undergone significant changes and *** sulfurization treatment,the resulting NiCo-HOS showed enhanced chemical resistance to alkaline electrolytes and improved electrical *** a 40 h operation test,it maintained high stability and provided a stable current density of 100 mA cm^(-2)at a relatively low potential of 1.33 V(***)in a solution of 1 mol L^(-1)KOH+0.5 mol L^(-1)***,the anode electrolytic product is analyzed through gas chromatography(GC),and N_2 is detected as the product without the presence of CO,indicating that the urea has undergone complete oxidation.

关键词： urea oxidation reaction NiCo-hydroxysulfide electrocatalyst hydrogen

来源：评论

学校读者我要写书评

暂无评论

Management, Storage, and Retrieval of Complex Data Comprising Multiple Formats Collected from Different Sources: A Systems Engineering Approach

Management, Storage, and Retrieval of Complex Data Comprisin...

引用

2023 Congress in Computer Science, Computer Engineering, and Applied Computing, CSCE 2023

作者： White, Barry C. Patel, Reena R. Walker, LaKenya K. Bray, Matthew D. Usace Engineering Research and Development Center Information Technology Laboratory VicksburgMS United States Usace Engneering Research and Development Center Geotechnical and Structures Laboratory VicksburgMS United States

ISBN: (纸本)9798350327595

Physical modeling procedures, with intermediate data, are being developed for the large-scale generation of synthetic imagery for automated target recognition (ATR) machine learning (ML) algorithms. This imagery is typically combined with collected data for generating robust training sets. The management and retrieval of this data requires large-scale storage and a means to query data of different types. Queries need to be performed for selection of data sets to the single file. The goal of this study is the creation of managed system for storing and retrieving this information using high-performance computing resources with the integrated Rule Oriented Data System (iRODS). Search oriented metadata tags are created for query searches based on locality, time-of-day, and other factors. When possible, metadata generation will be automated based on information in the data file. Use cases for the import and query operations are created. Simple scalable problems have been processed and are presented for this data set procedure and the proposed architecture is presented. This data storage and retrieval system will serve to provide locality specific data for ATR ML data-sets from a large set of collected and synthetic imagery and the processes to create that imagery. © 2023 IEEE.

关键词： ATR big data data lake infrared imagery iRODS machine learning

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：