检索结果-内蒙古大学图书馆

2024 Abu Dhabi International Petroleum Exhibition and Conference, ADIPEC 2024

作者： Ali, Muhammad Rawat, Narendra Alsubhi, Mutaz Alissa, Faisal Ghamdi, Abdulwahab Hoteit, Hussein Physical Science and Engineering Division King Abdullah University of Science and Technology Thuwal Saudi Arabia Exploration and Petroleum Engineering Center-Advanced Research Center Saudi Aramco Thuwal Saudi Arabia

ISBN: (纸本)9781959025498

Organic Hydrogen Carriers (OHCs) have emerged as a promising solution for efficient hydrogen storage, addressing one of the key challenges towards enabling hydrogen economy. As the demand for renewable energy and decarbonization intensifies, the need for reliable and efficient large-scale storage and hydrogen transport becomes increasingly crucial. OHC technology offers a promising approach that enables hydrogen to be geologically stored in a liquid form, allowing for safe and convenient handling, distribution, and utilization. The ability of subsurface formations to store geologically is determined by their wetting properties and interfacial forces. These factors significantly impact residual saturations, fluid flow dynamics, injection, withdrawal rates, and containment reliability. To our knowledge, literature has yet to report these properties for most OHCs at natural geological physio-thermal conditions. Therefore, we have measured the interfacial tension of methyl-cyclohexane (MCH;hydrogenated OHC) and toluene (dehydrogenated MCH) in the presence of one molar NaCl solution at natural physio-thermal geological conditions (T = 298-343 K and P = 1-20 MPa). MCH and toluene were used as a surrounding phase, and one molar NaCl was used as a drop phase. The results suggest that IFT values decrease with temperature and increase with pressure. This is caused by the increased intermolecular interaction of one liquid to the other liquid molecule due to pressure increase, thus increasing the IFT. Similarly, temperature reduces the density of both liquids, causing a reduction in IFT. However, MCH has higher IFT values than the toluene at pressure and temperature conditions similar to the toluene. This is due to the difference in density of a similar compound's hydrogenated and de-hydrogenated form. For instance, at 10 MPa and 323 K, the IFT value for MCH was 54 mN/m (density = 0.7599 g/ml) compared to the toluene = 38 mN/m (density = 0.84762 g/ml). Our findings pave the way

关键词： Sodium chloride

来源：评论

学校读者我要写书评

暂无评论

Materials and devices for high‐density,high‐throughput micro‐electrocorticography arrays

引用

Fundamental research 2025年第1期5卷 17-28页

作者： Yang Xie Yanxiu Peng Jinhong Guo Muyang Liu Bozhen Zhang Lan Yin He Ding Xing Sheng Department of Electronic Engineering Beijing National Research Center for Information Science and TechnologyInstitute for Precision MedicineLaboratory of Flexible Electronics TechnologyIDG/McGovern Institute for Brain ResearchTsinghua UniversityBeijing 100084China Beijing Engineering Research Center of Mixed Reality and Advanced Display School of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China School of Materials Science and Engineering The Key Laboratory of Advanced Materials of Ministry of EducationState Key Laboratory of New Ceramics and Fine ProcessingLaboratory of Flexible Electronics TechnologyTsinghua UniversityBeijing 100084China

The pursuit of precisely recording and localizing neural activities in brain cortical regions drives the development of advanced electrocorticography(ECoG)*** progress has led to the emergence of micro-ECoG(μECoG)devices with sub-millimeter *** review presents the current research status,development directions,potential innovations and applications of high-density,high-throughputμECoG ***,we summarize the challenges associated with accurately recording single or multiple neurons using existingμECoG devices,including passive multielectrode and active transistor ***,we focus on cutting-edge advancements in passiveμECoG devices by discussing the design principles and fabrication strategies to optimize three key parameters:impedance,mechanical flexibility,and ***,recent findings highlight the need for further research and development in active transistor arrays,including silicon,metal oxide,and solution-gated *** active transistor arrays have the potential to unlock the capabilities of high-density,high-throughputμECoG devices and overcome the limitations of passive multielectrode *** review explores the potential innovations and applications ofμECoG devices,showcasing their effectiveness for both brain science research and clinical applications.

关键词： Electrocorticography Micro-electrocorticography Flexible electronics Bioelectronics Neural electrode array

来源：评论

学校读者我要写书评

暂无评论

Strain engineering of anisotropic light-matter interactions in onedimensional P-P chain of SiP_(2)

引用

Nano research 2022年第8期15卷 7378-7383页

作者： Fanghua Cheng Junwei Huang Feng Qin Ling Zhou Xueting Dai Xiangyu Bi Caorong Zhang Zeya Li Ming Tang Caiyu Qiu Yangfan Lu Huiyang Gou Hongtao Yuan National Laboratory of Solid State Microstructures and Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied SciencesNanjing UniversityNanjing 210000China College of Materials Science and Engineering National Engineering Research Center for Magnesium AlloysChongqing UniversityChongqing 400030China Center for High Pressure Science and Technology Advanced Research Beijing 100094China

Strain engineering can serve as a powerful technique for modulating the exotic properties arising from the atomic structure of *** have been demonstrated that one-dimensional(1D)structure can serve as a great platform for modulating electronic band structure and phonon dispersion via strain ***,in a van der Waals material silicon diphosphide(SiP_(2)),quasi-1D zigzag phosphorus–phosphorus(P–P)chains are embedded inside the crystal structure,and can show unique phonon vibration modes and realize quasi-1D *** those optical properties by the atom displacements via strain engineering is of great interest in understanding underlying mechanism of such P–P chains,however,which remains ***,we demonstrate the strain engineering of Raman and photoluminescence(PL)spectra in quasi-1D P–P chains and resulting in anisotropic manipulation in SiP_(2).We find that the phonon frequencies of SiP_(2)in Raman spectra linearly evolve with a uniaxial strain along/perpendicular to the quasi-1D P–P chain ***,by applying tensile strain along the P–P chains,the band gap energy of strained SiP_(2)can significantly decrease with a tunable value of~55 *** on arsenic(As)element doping into SiP_(2),the strain-induced redshifts of phonon frequencies decrease,indicating the stiffening of the phonon vibration with the increased arsenic doping *** results provide an opportunity for strain engineering of the light–matter interactions in the quasi-1D P–P chains of SiP_(2)crystal for potential optical applications.

关键词： strain engineering silicon diphosphide Raman photoluminescence

来源：评论

学校读者我要写书评

暂无评论

Performance of a photoelectron momentum microscope in direct- and momentum-space imaging with ultraviolet photon sources

引用

Journal of Synchrotron Radiation 2024年第Pt 1期31卷 195-201页

作者： Chuang, Tzu-Hung Hsu, Chuan-Che Chiu, Wei-Sheng Jhuang, Jyun-Syong Yeh, I-Chun Chen, Ruei-San Gwo, Shanjr Wei, Der-Hsin National Synchrotron Radiation Research Center Hsinchu Taiwan Graduate Institute of Applied Science and Technology National Taiwan University of Science and Technology Taipei Taiwan Department of Physics National Tsing-Hua University Hsinchu Taiwan Department of Physics National Sun Yat-sen University Kaohsiung Taiwan

The Photoelectron-Related Image and Nano-Spectroscopy (PRINS) endstation located at the Taiwan Photon Source beamline 27A2 houses a photoelectron momentum microscope capable of performing direct-space imaging, momentum-space imaging and photoemission spectroscopy with position sensitivity. Here, the performance of this microscope is demonstrated using two in-house photon sources - an Hg lamp and He(I) radiation - on a standard checkerboard-patterned specimen and an Au(111) single crystal, respectively. By analyzing the intensity profile of the edge of the Au patterns, the Rashba-splitting of the Au(111) Shockley surface state at 300 K, and the photoelectron intensity across the Fermi edge at 80 K, the spatial, momentum and energy resolution were estimated to be 50 nm, 0.0172 Å-1 and 26 meV, respectively. Additionally, it is shown that the band structures acquired in either constant energy contour mode or momentum-resolved photoemission spectroscopy mode were in close agreement. © 2024 Journal of Synchrotron Radiation.

关键词： Electronic structure

来源：评论

学校读者我要写书评

暂无评论

Homogeneous Catalytic Process of a Heterogeneous Ru Catalyst in Li-O2 via X-ray Nanodiffraction Observation

引用

ACS applied Materials and Interfaces 2024年第7期16卷 8783-8790页

作者： Liao, Chung-Hao Chiang, Ching-Yu Iputera, Kevin Hu, Shu-Fen Liu, Ru-Shi Department of Physics National Taiwan Normal University Taipei116 Taiwan Department of Chemistry Advanced Research Center for Green Materials Science and Technology National Taiwan University Taipei106 Taiwan National Synchrotron Radiation Research Center Hsinchu300 Taiwan

In recent years, lithium oxygen batteries (Li-O2) have received considerable research attention due to their extremely high energy density. However, the poor conductivity and ion conductivity of the discharge product lithium peroxide (Li2O2) result in a high charging overpotential, poor cycling stability, and low charging rate. Therefore, studying and improving catalysts is a top priority. This study focuses on the commonly used heterogeneous catalyst ruthenium (Ru). The local distribution of this catalyst is controlled by using sputtering technology. Moreover, X-ray nanodiffraction is applied to observe the relationship between the decomposition of Li2O2 and the local distribution of Ru. Results show that Li2O2 decomposes homogeneously in liquid systems and heterogeneously in solid-state systems. This study finds that the catalytic effect of Ru is related to electrolyte decomposition and that its soluble byproducts act as electron acceptors or redox mediators, effectively reducing charging overpotential but also shortening the cycle life. © 2024 American Chemical Society.

关键词： Lithium compounds

来源：评论

学校读者我要写书评

暂无评论

Enhanced Federated Learning Framework based on Deep Learning and Neutrosophic Set for Android Malware Classification

引用

Neutrosophic Sets and Systems 2025年 82卷 781-799页

作者： Abdellah, Mohamed Refaat Oudah, Hasan H. Badawy, Ahmed Mohamed Ahmed Mohamed, Abdelfattah Abdelfattah M. Bedier, Shady Ahmed Metwaly, Ahmed A. Eassa, Mohamed Abdelhafeez, Ahmed The Department of Computer Science College of Information Technology Misr University for Science and Technology Cairo Egypt College of Arts Department of Journalism Ahl Al Bayt University Karbala Iraq Cybersecurity Department Faculty of Computers and Artificial Intelligence Helwan University Egypt Computer Science Department Faculty of Information System and Computer Science October 6 University Giza12585 Egypt Department of Computer Science Faculty of Computers and Informatics Zagazig University Zagazig44519 Egypt Applied Science Research Center Applied Science Private University Amman Jordan

Malware detection is one of the critical tasks of cybersecurity, especially considering the growing popularity of mobile devices. The integrity and security of mobile ecosystems rely on the capacity to identify malware quickly and precisely, as security hacks against these devices become increasingly frequent. Due to the requirement for massive volumes of data aggregation, traditional centralized machine learning (ML) techniques for malware detection face challenges with data sharing, computational complexity, and privacy. This research addresses these challenges by proposing a novel model, called "CNN-Fed", which is based on Convolutional Neural Networks (CNN) with Federated Learning (Fed). The main goal of this work is to create a global classifier for Android malware detection that is highly accurate and does not require centralised data aggregation. Using four benchmark datasets—Drebin, Malgenome, Kronodroid, and Tuandromd—the CNN-Fed model is trained across many clients in a federated setting under the suggested architecture. Then we use multi-criteria decision-making (MCDM) methodology to evaluate the number of clients and number of rounds. We use two MCDM methods such as Entropy methodology to compute the criteria weights and the CoCoSo methodology to rank the alternatives. We use the interval-valued neutrosophic sets (IVNSs) to deal with uncertainty and vague information. We use five criteria such as accuracy, F1-score, precision, recall, and FP and six of alternatives refer to the number of clients and number of rounds. The results show the best alternative has a larger number of clients and rounds. © 2025, University of New Mexico. All rights reserved.

关键词： Android malware

来源：评论

学校读者我要写书评

暂无评论

The role ofγ-C_(2)H_(5)NO_(2) as a new transient liquid phase in cold sintering process of BaTiO_(3) composites

引用

Journal of advanced Ceramics 2024年第7期13卷 942-955页

作者： Jitrawan Noisak Pimchanok Ieamviteevanich Thitirat Charoonsuk Phakkhananan Pakawanit Nattapong Pinpru Wanwilai Vittayakorn Tosapol Maluangnont Panpailin Seeharaj Theerachai Bongkarn Te-Wei Chiu Naratip Vittayakorn Advanced Materials Research Unit School of ScienceKing Mongkut’s Institute of Technology LadkrabangBangkok 10520Thailand Department of Chemistry School of ScienceKing Mongkut’s Institute of Technology LadkrabangBangkok 10520Thailand Department of Materials Science Faculty of ScienceSrinakharinwirot UniversityBangkok 10110Thailand Synchrotron Research and Applications Division Synchrotron Light Research InstituteNakhon Ratchasima 30000Thailand Sustainability Centre Plastics Market Intelligent DepartmentPlastics Institute of ThailandBangkok 10110Thailand Electroceramics Research Laboratory College of Materials Innovation and TechnologyKing Mongkut's Institute of Technology LadkrabangBangkok 10520Thailand Department of Physics Faculty of ScienceNaresuan UniversityPhitsanulok 65000Thailand Research Center for Academic Excellence in Applied Physics Faculty of ScienceNaresuan UniversityPhitsanulok 65000Thailand Department of Materials and Mineral Resources Engineering "National"Taipei University of TechnologyTaipei 106TaiwanChina

Dielectric materials,such as barium titanate(BT)-based materials,have excellent dielectric properties but require high temperatures(above 1300℃)for ceramic fabrication,leading to high costs and energy *** cold sintering process(CSP)offers a solution to these issues and is gaining worldwide attention as an innovative fabrication *** this work,we proposed an alternative organic ferroelectric phase,gamma-glycine(γ-GC),which acts as a transient liquid phase to fabricate high-density composites with barium titanate(BT)at low temperatures through *** findings show that the density of 15γ-GC/85BT reached 96.7%±1.6%when it was sintered at 120℃for 6 h under 10 MPa uniaxial *** electron microscopy‒energy dispersive X-ray spectroscopy(SEM‒EDS)mappings of the composite suggested thatγ-GC completely underwent the precipitation-dissolution process and,therefore,filled between BT ***,X-ray diffraction(XRD)and Fourier-transform infrared spectroscopy(FTIR)confirmed the preservation ofγ-GC without undesired phase *** addition,the ferroelectric and dielectric properties ofγ-GC/BT composites have been *** high dielectric constant(ε_(r))was 3600,and the low dielectric loss(tanδ)was 1.20 at 200℃and 100 kHz for the 15γ-GC/85BT *** hysteresis loop showed a remanent polarization(P_(r))of 0.55µC·cm^(−2)and a coercive field(E_(c))of 7.25 kV·cm^(−1).Our findings reaffirmed that an organic ferroelectric material(γ-GC)can act as a transient liquid phase in a CSP that can successfully and sustainably fabricateγ-GC/BT composites at low temperatures while delivering outstandingly high performance.

关键词： gamma-glycine(γ-GC) barium titanate(BT) cold sintering process organic ferroelectric materials dielectric properties ferroelectric properties

来源：评论

学校读者我要写书评

暂无评论

Coevolution of superconductivity and Hall coefficient with anisotropic lattice shrinkage in compressed KCa_(2)Fe_(4)As_(24F_(2)

引用

Chinese Physics B 2024年第7期33卷 66-70页

作者：韩金宇洪文山蔡树赵金瑜郭静周亚洲王鹏玉曹立新罗会仟李世亮吴奇孙力玲 Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Center for High Pressure Science&Technology Advanced Research Beijing 100094China University of Chinese Academy of Sciences Beijing 100190China

The stability of superconductivity in superconductors is widely recognized to be determined by various factors,including charge,spin,orbit,lattice,and other related degrees of ***,we report our findings on the pressure-induced coevolution of superconductivity and Hall coefficient in KCa_(2)Fe_(4)As_(24F_(2),an iron-based superconductor possessing a hybrid crystal structure combining KFe_(2)As_(2) and *** investigation,involving high-pressure resistance,Hall effect and x-ray diffraction(XRD) measurements,allows us to observe the connection of the superconductivity and Hall coefficient with the anisotropic lattice *** find that its ambient-pressure tetragonal(T) phase presents a collapse starting at around 18 GPa,where the sign of the Hall coefficient(R_(H)) changes from positive to *** further compression,both superconducting transition temperature(T_(c)) and R_(H) exhibit a monotonous *** around 41 GPa,the superconductivity is completely suppressed(T_(c)=0),where the parameter a begins to decline again and the Hall coefficient remains nearly *** experiment results clearly demonstrate that the pressure-induced anisotropic lattice collapse plays a crucial role in tuning the interplay among multiple degrees of freedom in the superconducting system and,correspondingly,the stability of the superconductivity.

关键词： effects of pressure pnictides and chalcogenides transport properties

来源：评论

学校读者我要写书评

暂无评论

NiMo-MMO catalyst derived from LDHs precursors toward the deep hydrogenation of pyrene

引用

Chinese Journal of Chemical Engineering 2024年第12期76卷 201-210页

作者： Yongliang Jia Boyang Bai Jing Wang Yueyi Wang Zheng Wang Xiaoxun Ma School of Chemical Engineering Northwest UniversityXi'an 710069China International Scientific and Technological Cooperation Base of the Ministry of Science and Technology(MOST)for Clean Utilization of Hydrocarbon Resources Xi'an 710069China Chemical Engineering Research Center of the Ministry of Education(MOE)for Advanced Use Technology of Shanbei Energy Xi'an 710069China Shaanxi Research Center of Engineering Technology for Clean Coal Conversion Xi'an 710069China Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi Xi'an 710069China College of Chemistry and Materials Science Weinan Normal UniversityWeinan 714000China

A series of Ni-based catalysts were prepared via structural topological transformation from the Ni@Al_(2)O_(3)layered double hydroxides(LDHs)precursors,and applied for the deep catalytic hydrogenation saturation of pyrene in a high-pressure *** pore structures,active species dispersion,surface morphology,amount and type of acid of the prepared catalysts were characterized by BET,XRD,SEM,TEM,XPS,SEM,NH_(3)-TPD and *** studied the influence of physicochemical properties of Ni-based catalysts on the regularity and mechanism of deep hydrogenation of ***,the synergy between Ni and Mo,and the interaction between active metals and support were discussed to further reveal the constitutive relationship during the hydrogenation reaction of *** results of the evaluation of the catalytic hydrogenation of pyrene show that the as-prepared NiMo mixed metal oxide(MMO)catalyst showed excellent catalytic activity:~95%pyrene conversion,90.12%for the selectivity of deep hydrogenation products(hexahydropyrene,decahydropyrene and hexadecahydropyrene).It was expected that the successfully preparation and utilization of NiMo-MMO catalyst could provide a theoretical basis for the design of this kind of catalysts for deep catalytic hydrogenation of polycyclic aromatic hydrocarbons(PAHs).

关键词： Ni@Al_(2)O_(3)LDHs Structural topological transformation method NiMo-MMO catalyst Pyrene deep hydrogenation

来源：评论

学校读者我要写书评

暂无评论

Investment decision making in the fuzzy context: An integrated model approach

引用

Journal of Intelligent and Fuzzy Systems 2023年第3期44卷 3763-3786页

作者： Zhang, Shasha Liu, Xiaodi Garg, Harish Zhang, Shitao School of Mathematics and Physics Anhui University of Technology Anhui Ma'anshan China Punjab Patiala India Department of Mathematics Graphics Era Deemed to Be University Uttarakhand Dehradun India Applied Science Research Center Applied Science Private University Amman Jordan

With the implementation and steady progress of the Belt and Road (BR) initiative, China's investment in countries along the BR has maintained a high growth trend. Generally speaking, investment problems are often accompanied by high risk and uncertainty, and how to make the suitable investment decision is a difficult issue. This paper investigates an investment decision approach under the probabilistic hesitant fuzzy environment. Firstly, a new probabilistic hesitant fuzzy distance and correlation coefficient are defined to overcome the defects of the existing probabilistic hesitant fuzzy information measures. Secondly, an attribute weight integrated model is constructed by combining the maximum deviation method, the CRITIC method and the maximum entropy principle, which is able to take into account the correlation between attributes and make full use of the decision information. In addition, a disappointment theory-based probabilistic hesitant fuzzy multi-attribute decision making (PHFMADM) method is proposed to solve the investment decision problem, which can integrate the psychological behavior of decision makers into the decision making process and make the decision results more authentic and reliable. Finally, the rationality and validity of the method are verified by comparing with the existing methods. © 2023 - IOS Press. All rights reserved.

关键词： Investments

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：