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Rare Metals 2024年第1期43卷 113-123页

作者： Jin-Lv Tian Lin-Rong Wu hai-jun Zhao Shou-Dong Xu Liang Chen ding Zhang Xiao-Chuan Duan College of Chemical Engineering and Technology Taiyuan University of TechnologyTaiyuan 030024China College of Chemistry Taiyuan University of TechnologyTaiyuan 030024China School of Chemical Engineering and Pharmacy Wuhan Institute of TechnologyWuhan 430205China

The effect of partial substitution of Mg for Ni on a high-sodium and lithium-free layered P2-type Na_(45/54)Mg_(6)/_(54)Ni_(12/54)Mn_(34/54)O_(2) cathode with high initial Coulombic efficiency and excellent cyclic stability has been investigated in this *** on the crystal structural analysis,the Mg doping can retain the P2 structure up to 4.3 V,thus restraining the detrimental phase transformation of P2-02during the Na-ion intercalation/deintercalation ***,the obtained Mg-doped P2-type cathode exhibits a reversible specific capacity of 109 mAh·g^(-1) at 0.1C between 2.0 and 4.3 V and a retention rate of 81.5% after 200cycles at *** addition,the full cell consisting of Mg-doped P2-type cathode and hard carbon anode shows a capacity retention rate of 85.6% after 100 *** study provides new insight into the development of durable cathode materials for sodium-ion batteries.

关键词： Sodium-ion batteries Cathode material High sodium content Air stability

Optimization of resource allocation in FDD massive MIMO systems

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Digital Communications and Networks 2024年第1期10卷 117-125页

作者： jun Cai Chuan Yin Youwei ding School of Artificial Intelligence and Information Technology Nanjing University of Chinese MedicineNanjing 210046China School of Electronic and Information Hangzhou Dianzi UniversityHangzhou 310018ZhejiangChina

The performance of massive MIMO systems relies heavily on the availability of Channel State Information at the Transmitter(CSIT).A large amount of work has been devoted to reducing the CSIT acquisition overhead at the pilot training and/or CsI feedback *** fact,the downlink communication generally includes three stages,i.e.,pilot training,CsI feedback,and data *** three stages are mutually related and jointly determine the overall system ***,there exist few studies on the reduction of csIT acquisition overhead from the global point of *** this paper,we integrate the Minimum Mean Square Error(MMSE)channel estimation,Random Vector Quantization(RVQ)based limited feedback and Maximal Ratio Combining(MRC)precoding into a unified framework for investigating the resource allocation *** particular,we first approximate the covariance matrix of the quantization error with a simple expression and derive an analytical expression of the received Signal-to-Noise Ratio(SNR)based on the deterministic equivalence *** the three performance metrics(the spectral efficiency,energy efficiency,and total energy consumption)oriented problems are formulated *** practical system requirements,these three metrics can be collaboratively ***,we propose an optimization solver to derive the optimal partition of channel coherence *** results verify the benefits of the proposed resource allocation schemes under three different scenarios and illustrate the tradeoff of resource allocation between three stages.

关键词： Massive MIMO FDD CSIT Resource allocation

Preparation and properties of ZrO_(2)-strengthened porous mullite insulation materials using Y_(2)O_(3) additive

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Journal of Iron and Steel Research International 2024年第6期31卷 1514-1521页

作者： Wang-zhi Yu Yi-hong Shi Ping Liu Yong-wan Wu Cheng-hao Song Xian-gong Deng Xiang ding Song-lin Ran Yi Zhang hai-jun Zhang hai-liang Deng Advanced Ceramics Research Center School of Materials Science and EngineeringAnhui University of TechnologyMa'anshan 243002AnhuiChina The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina

ZrO_(2)-strengthened porous mullite insulation materials were prepared by foaming technology utilizing ZrSiO_(4) and Al_(2)O_(3) as primary materials and Y_(2)O_(3) as an *** effects of Y_(2)O_(3) contents on the phase composition,microstructure,mechanical properties,and heat conductivity of the porous mullite insulation materials were investigated.A suitable Y_(2)O_(3) content could promote phase transition of monoclinic ZrO_(2)(m-ZrO_(2))to tetragonal ZrO_(2)(t-ZrO_(2)),reduce pore size,and improve the strengths of as-prepared *** cold crushing strength and bending strength of as-prepared specimens with a 119µm spherical pore size using 6 wt.%Y_(2)O_(3) were 35.2 and 13.0 MPa,respectively,with a heat conductivity being only 0.248 W/(m K).

关键词： Porous mullite insulation material Zirconium oxide Y_(2)O_(3) Mechanical property Heat conductivity

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预防型民事责任

政法论坛 2005年第4期23卷 123-130页

作者：丁海俊西南政法大学重庆400031

预防型民事责任,是指权利相对人的行为对权利人的权利已经造成损害并且还在继续侵害时,或者虽没有造成现实损害却存在造成侵害的危险时承担的一种民事责任。其目的是预防损害的继续或者是损害的发生。此种民事责任的承担,只需要证明权... 详细信息

预防型民事责任,是指权利相对人的行为对权利人的权利已经造成损害并且还在继续侵害时,或者虽没有造成现实损害却存在造成侵害的危险时承担的一种民事责任。其目的是预防损害的继续或者是损害的发生。此种民事责任的承担,只需要证明权利人享有该权利,相对人的行为(作为或不作为)已经或者即将对权利人的权利造成侵害即可。责任人承担此种责任,采取的是无过错责任原则,不需要考虑责任人的过错。预防型民事责任不是不适用消灭时效,而是消灭时效在预防型民事责任中无法成就而无从适用。

关键词：预防型民事责任无过错责任原则持续性侵害民法知识产权

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论民事权利、义务和责任的关系

河北法学 2005年第7期23卷 118-121页

作者：丁海俊西南政法大学重庆400031

侵权行为法在民法典中居于何种地位?传统民法理论对此尚无法做出满意回答。若将民事权利、义务和责任视为属于同一个位阶,三位一体统一于民事法律关系之中的概念,而视人格权、物权、知识产权、债权与其相对应的义务(债务)为此三个基本... 详细信息

侵权行为法在民法典中居于何种地位?传统民法理论对此尚无法做出满意回答。若将民事权利、义务和责任视为属于同一个位阶,三位一体统一于民事法律关系之中的概念,而视人格权、物权、知识产权、债权与其相对应的义务(债务)为此三个基本概念的下位概念,则可以推导出侵权行为产生的不是债而是民事责任,侵权行为法主要是绝对权的救济法,应当从债法中独立出来。侵权责任与违约责任共同组成一个完整的民事责任体系,实践着私法自治的功能。

关键词：民事权利侵权行为法民法侵权责任债法民事法律关系民事责任权利义务

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民事责任的预防功能

现代法学 2001年第2期23卷 144-148页

作者：丁海俊西南政法大学重庆400013

本文以经济学中的价格市场理论和外部性理论为工具，从预防角度考察民事责任（以损害赔偿为主）的社会功能，并指出为达到最佳预防目的，在两种不同的情况下，致害人应负损害赔偿数额的原理与计算方法。

关键词：民事责任预防功能补偿性赔偿惩罚性赔偿民法

Designing ultrastrong and thermally stable FeCrAl alloys with the fine-grained structure

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Journal of Materials Science & Technology 2024年第4期171卷 198-208页

作者： Shuaiyang Liu Jinyu Zhang Hui Wang Gang Liu Xiangdong ding jun Sun State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049China Science and Technology on Reactor Fuel and Materials Laboratory Nuclear Power Institute of ChinaChengdu 610041China

Designing microstructurally stable FeCrAl alloys with excellent strength-ductility synergy is highly desir-able for their engineering ***,due to the preference nucleation of precipitates at grain boundaries(GBs),the improved precipitation strengthening of these alloys is usually accompanied by in-tergranular ***,we propose a novel thermomechanical processing route coupled with the Si alloying strategy via precipitation of coherent deformable Laves precipitates inside equiaxed fine-grains to achieve FeCrAl alloys with ultrahigh yield strength over∼992 MPa,excellent uniform elongation of∼7.6%at room temperature,and superior thermal stability at temperature∼1200℃.The Si alloying not only decreases the stacking fault energy of Laves precipitates favorable for their stacking-fault-mediated deformation but also hinders grain coarsening at 1200℃due to the Si-enrichment favorable for GB pin-ning *** results prove the possibility of achieving the collaborative enhancement of mutually exclusive properties in alloys,such as strength-ductility-thermal stability via nanoprecipitation engineer-ing,and offer a promising route to prepare dispersion-strengthened materials.

关键词： FeCrAl alloys Si alloying Mechanical properties Thermal stability Laves phase

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违约金的性质与功能新论

西南民族大学学报（人文社会科学版） 2005年第3期26卷 79-83页

作者：丁海俊西南政法大学重庆400031

违约金作为一种重要的违约损害赔偿的方式,无论是在大陆法系还是英美法系都是一项重要的制度。但由于我国分析法学的不发达,加上对民事责任性质与功能的认识不清,造成了理论上的模糊。本文分析了违约金的民事责任属性,并指出其... 详细信息

违约金作为一种重要的违约损害赔偿的方式,无论是在大陆法系还是英美法系都是一项重要的制度。但由于我国分析法学的不发达,加上对民事责任性质与功能的认识不清,造成了理论上的模糊。本文分析了违约金的民事责任属性,并指出其根本特性在于其预定性。在此基础上分析了违约金的功能,指出惩罚性和补偿性也不是违约金独有的功能,而是一般民事责任的功能。违约金的功能除了补偿非违约方、惩罚违约方以外,还具有体现效率原则的更加明显的预防违约的功能。最后,笔者对立法和司法中对于违约金应采取的态度与做法提出了建议。

关键词：违约金新论违约损害赔偿民事责任英美法系大陆法系分析法学责任性质效率原则违约方不发达补偿性惩罚性作为定性司法立法

Characterization of the current crowding effect on chip surface using a quantum wide-field microscope

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Chinese Optics Letters 2024年第6期22卷 123-128页

作者： Rui Zhao ding Wang Huan Fei Wen Yunbo Shi jun Tang jun Liu Science and Technology on Electronic Test&Measurement Laboratory North University of ChinaTaiyuan 030051China

We characterize the current crowding effect for microwave radiation on a chip surface based on a quantum wide-field microscope combining a wide-field reconstruction technique. A swept microwave signal with the power of 0–30 d Bm is supplied to a dumbbell-shaped microstrip antenna, and the significant differences in microwave magnetic-field amplitudes attributed to the current crowding effect are experimentally observed in a 2.20 mm ×1.22 mm imaging area. The normalized microwave magnetic-field amplitude along the horizontal geometrical center of the image area further demonstrates the feasibility of the characterization of the current crowding effect. The experiments indicate the proposal can be qualified for the characterization of the anomalous area of the radio-frequency chip surface.

关键词： current crowding effect microwave field on chip surface quantum wide-field microscope nitrogen-vacancy center

DBT-PDP:Provable data possession with outsourced data batch transfer based on blockchain

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High-Confidence Computing 2024年第2期4卷 62-72页

作者： Chengming Yi Hua Zhang Weiming Sun jun ding State key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing 100876China Zhe Jiang Computer Network Emergency Response Technical Team Hangzhou 310052China

In the scenario of large-scale data ownership transactions,existing data integrity auditing schemes are faced with security risks from malicious third-party auditors and are inefficient in both calculation and communication,which greatly affects their *** paper proposes a data integrity audit scheme based on blockchain where data ownership can be traded in batches.A data tag structure which supports data ownership batch transaction is adopted in our *** update process of data tag does not involve the unique information of each data,so that any user can complete ownership transactions of multiple data in a single transaction through a single transaction auxiliary *** the same time,smart contract is introduced into our scheme to perform data integrity audit belongs to third-party auditors,therefore our scheme can free from potential security risks of malicious third-party *** analysis shows that our scheme is proved to be safe under the stochastic prediction model and k-CEIDH *** with similar schemes,the experiment shows that communication overhead and computing time of data ownership transaction in our scheme is ***,the communication overhead and computing time of our scheme is similar to that of similar schemes in data integrity audit.

关键词： Data integrity Cloud outsourcing audit Data ownership batch transaction Blockchain Smart contract