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Magnetic properties and magnetocaloric effects in Eu(Ti,Nb,Mn)O_(3) perovskites

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Journal of Rare Earths 2024年第8期42卷 1560-1567,I0006页

作者： Junfeng Wang Huicai Xie Quanyi Liu Zhihong Hao Zhaojun mo Qi Fu Xinqiang Gao Jun Shen Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou341119China Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and TechnologyGanzhou341000China school of Rare Earth and New Materials Engineering Gannan University of Science and TechnologyGanzhou341000China Department of Energy and Power Engineering School of Mechanical EngineeringBeijing Institute of TechnologyBeijing100081China

In perovskite EuTiO_(3),the magnetic characteristics and magnetocaloric effect(MCE) can be flexibly regulated by converting the magnetism from antiferromagnetic to *** the present work,a series of Eu(Ti,Nb,Mn)O_(3) compounds,abbreviated as ETNmo for convenience of description,was fabricated and their crystallography,magnetism together with cryogenic magnetocaloric effects were systematically *** crystallographic results demonstrate the cubic perovskite structure for all the compounds,with the space group of *** magnetic phase transitions are observed in these second-order phase transition(SOPT) *** joint substitution of elements Mn and Nb can considerably manipulate the magnetic phase transition process and magnetocaloric performance of the ETNmo *** the Mn content increases,gradually widened-ΔS_(M)-T curves are obtained,and two peaks with a broad shoulder are observed in the-ΔS_(M)-T curves for Δμ_(0)H≤0-1 *** a field change of 0-5 T,the values of maximum magnetic entropy change(-ΔS_(M)^(max)) and refrigeration capacity(RC) are evaluated to be 34.7 J/(kg·K) and 364.9 J/kg for EuTi_(0.862.)Nb_(0.062.)Mn_(0.075)O_(3), 2..8 J/(kg·K) and367.6 J/kg for EuTi_(0.8375)Nb_(0.062.)Mn_(0.1)O_(3),2..2.J/(kg·K) and 369.2.J/kg for EuTi_(0.812.)Nb_(0.062.)Mn_(0.12.)O_(3),17.1 J/(kg·K) and 357.6 J/kg for EuTi_(0.7875)Nb_(0.062.)Mn_(0.15)O_(3),*** co nsiderable MCE parameters make the ETNmo compounds potential candidates for cryogenic magnetic refrigeration.

关键词： ETNmo perovskites Cryogenic refrigeration Magnetic phase transition Magnetocaloric effect Rare earths

Comprehensive treatment of von Hippel-Lindau disease:A case report

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Cancer Innovation 2024年第2期3卷 63-67页

作者： Xuesong Li Zheng mo Zhuo Yu school of Clinical Medicine Tsinghua UniversityBeijingChina Department of Oncology Beijing Tsinghua Changgung HospitalBeijingChina

von Hippel-Lindau(VHL)disease is a rare autosomal dominant multiorgan disease characterized by several benign and malignant tumors rich in vascular,as well as cysts in other organs.A great clinical treatment strategy is significantly warranted for good prognosis of patients with VHL ***,we reported a case of a 45-year-old woman diagnosed with VHL disease with spinal hemangioblastoma(HB)and clear cell renal cell carcinoma(ccRCC).Four years after the resection of the right kidney,a recurrent RCC in the right kidney and a malignant lesion in the left kidney were *** patient was started on sorafenib(800 mg,daily)and tislelizumab(2.0 mg per 3 weeks).After 6 months of treatment,the size of renal cell carcinoma was dramatically reduced and renal function *** importantly,she achieved partial response during the whole ***,intramedullary masses resection was done and the HB in T4-5 thoracic spinal was *** symptoms such as numbness and pain were remarkably ***,tislelizumab-induced elevation in liver transaminase levels and hypothyroidism were revered by hepatoprotector and levothyroxine,*** short,comprehensive treatment strategies may benefit patients with VHL disease,especially with HB and ccRCC.

关键词： sorafenib surgery tislelizumab treatment von Hippel-Lindau disease

Simulation of moving boundary of the reaction shaft in a flash smelting furnace

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Journal of Central South university 2001年第3期13卷 213-218页

作者： CHEN Zhuo 1,MEI Chi 1,CHEN Hong-rong 1,mo Jiao 2.(1 Institute on Simulation and Optimization of Pyro-installation, Central Sout h university, Changsha 410083, China 2.Science {2., {2. university of Posts and Telecommunications, {2. 1 1. Institute on Simulation and Optimization of Pyro-installation Central South University 410083 Changsha China 2. Science school Beijing University of Posts and Telecommunications 100876 Beijing China

As to solve the online monitoring of the inner temperatur e and freezing profile of the reaction shaft of flash smelting furnace, simulation of the wall in the reaction shaft in a flash smelting furnace was made through numerical computation. The computational results are very near the data got in s ite. The error of the moving boundary is approximately 3%, and that of the tempe rature is less than 5%. It is proved that the simulation software is applicable for practice to monitor the temperature and moving boundary inside the hearth on line. Based on a large number of the data computed, the relation between the cha nge of the moving boundary and inner temperature is summarized, and the great in fluence of the cooling system on the forming and stability of the moving boundar y inside the hearth is emphasized, which provide the theoretical bases for optim izing the flash smelting operation.

关键词： flash smelting furnace moving boundary numerical computation simulation

Analysis of System Value Evolution Trends of Energy Storage in Decarbonization Process

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Energy Engineering 2024年第10期121卷 3037-3053页

作者： mo Zhou Jingming Zhao Zili Chen Qiushi Fang Hua Li Zhaoyuan Wu State Grid Liaoning Electric Power Supply Co. Ltd.StateGrid Liaoning Electric Power Company Limited Economic Research InstitueteShenyang110015China school of Electrical and Electronic Engineering North China Electric Power UniversityBeijing102206China

With the continuous expansion of the scale of renewable energy installation,the demand for energy storage has increased ***,there are significant differences in the value of energy storage in different scenarios,and the phenomenon of diminishing marginal benefits of energy storage is becoming more ***,themulti-dimensional value evolution trend of energy storage has become a key *** study selects indicators from three dimensions of energy storage:low-carbon emission reduction,smoothing wind and solar power fluctuations,and saving generation costs,quantifying the economic,environmental,and technical values of energy *** forms a quantitative evaluation system for energy storage *** comparing the calculated system values under different energy storage capacities,the marginal value evolution trend of energy storage is ***,considering factors such as the utilization rate of renewable energy,the change in energy storage value under different scenarios is *** results show that the value of long-duration energy storage is significantly affected by the energy storage ***,when the charge-discharge efficiency of longduration energy storage reaches 0.6 or above,the system value increases ***,appropriately reducing the cost of energy storage capacity also helps to improve its system value.

关键词： Quantitative evaluation of value marginal benefit joint planning value evolution trend

Manipulating the Macroscopic and Microscopic morphology of Large-Area Gravure-Printed ZnO Films for High-Performance Flexible Organic Solar Cells

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Energy & Environmental Materials 2024年第2期7卷 229-239页

作者： Zhenguo Wang Jingbo Guo Yaqin Pan Jin Fang Chao Gong Lixin mo Qun Luo Jian Lin Changqi Ma school of Nano-Tech and Nano-Bionics University of Science and Technology of ChinaHefei 230026China i-Lab&Printable Electronics Research Center Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of Sciences(CAS)Suzhou 215123China beijing Engineering Research Center of Printed Electronics Beijing Institute of Graphic CommunicationBeijing 102600China Jiangxi Institute of Nanotechnology Chinese Academy of Sciences(CAS)Nanchang 330200China

Gravure printing is a promising large-scale fabrication method for flexible organic solar cells(FOSCs)because it is compatible with two-dimension patternable roll-to-roll ***,the unsuitable rheological property of ZnO nanoinks resulted in unevenness and looseness of the gravure-printed ZnO interfacial *** we propose a strategy to manipulate the macroscopic and microscopic of the gravure-printed ZnO films through using mixed solvent and poly(vinylpyrrolidone)(PVP)*** regulation of drying speed effectively manipulates the droplets fusion and leveling process and eliminates the printing ribbing structure in the macroscopic *** additive of PVP effectively regulates the rheological property and improves the microscopic compactness of the *** this method,large-area ZnO∶PVP films(2.×9 cm^(2.)with excellent uniformity,compactness,conductivity,and bending durability were *** power conversion efficiencies of FOSCs with gravure-printed AgNWs and ZnO∶PVP films reached 14.34%and 17.07%for the 1 cm^(2.PM6:Y6 and PM6∶L8-BO flexible *** efficiency of 17.07%is the highest value to date for the 1 cm^(2.*** use of mixed solvent and PVP addition also significantly enlarged the printing window of ZnO ink,ensuring high-quality printed thin films with thicknesses varying from 30 to 100 nm.

关键词： flexible organic solar cell gravure printing large-area flexible interfacial layer rheology properties zinc oxide

A New Safety Electric Initiating System

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International Journal of Minerals,Metallurgy and Materials 1999年第4期13卷 306-308页

作者： Daze Lin(Resource Engineering school, university of Science and Technology {2., {2. 100083, China) Univ of Science and Technology Beijing Beijing China

Based on the analysis of weakness on the safety of traditional electric detonators, a BJ-l safety electric detonator initiatingsystem and its corresponding safe examination technique were successfully developed. By leading false foot wires and taking advantageof the transmitting frequency band of mo-Zn ferrite, detonators in this new system can completely impede the direct induction of outsidecrosstalk that may cause casual firing in the ordinary as well as eleclromagnetic ones. Possible causality by lightning was discussed. Results are presented, of its safety tests on resistance to direct and alternating current, electrostatic, and crosstalk induced by damp leakagein saturated salty water.

关键词： electric detonator blasting engineering, electric initiating system, safety

miR319-TCPs-TGA9/TGA10/ROXY2.regulatory module controls cell fate specification in early anther development in Arabidopsis

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Science China(Life sciences) 2024年第4期67卷 839-842页

作者： Jinyuan Tao Zijie Pan Wenwen Kong Beixin mo Xuemei Chen Yu Yu Guangdong Provincial Key Laboratory for Plant Epigenetics Longhua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhen 518060China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China school of Life sciences Peking-Tsinghua Joint Center for Life SciencesPeking UniversityBeijing 100871China

Dear Editor,The process of anther development is generally conserved across plant species(Ma,2.05).Many protein-coding genes and noncoding RNAs have been identified to participate in early anther development in Arabidopsis(Walbot and Egger,2.16).mi R319 is one of the most ancient and conserved mi RNA families in land plants(Chávez montes et al.,2.14).

关键词： Arabidopsis miR319 ancient

The existence of harmonic maps from Finsler manifolds of Riemannian manifolds

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Science China Mathematics 2005年第1期48卷 115-130页

作者： mo xiaohuan YANG Yunyan LMAM School of Mathematical SciencesPeking UniversityBeijing 100871China Department of MathematicsRenmin University of ChinaBeijing 100872China

In this paper,we consider the existence of harmonic maps from a Finsler man-ifold and study the characterisation of harmonic maps,in the spirit of *** heatequation method we show that any map from a compact Finsler manifold M to a com-pact Riemannian manifold with non-positive sectional curvature can be deformed into aharmonic map which has minimum energy in its homotopy class.

关键词： harmonic map,Finsler manifold,existence.

Driver Steering Behaviour modelling Based on Neuromuscular Dynamics and Multi‑Task Time‑Series Transformer

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Automotive Innovation 2024年第1期7卷 45-58页

作者： Yang Xing Zhongxu Hu Xiaoyu mo Peng Hang Shujing Li Yahui Liu Yifan Zhao Chen Lv school of Aerospace Transport and ManufacturingCranfield UniversityCranfield MK430ALUnited Kingdom school of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore College of Transportation Engineering Tongji UniversityShanghai 200092China College of Computer Science and Technology Jilin UniversityChangchun 130012China school of Vehicle and mobility Tsinghua UniversityBeijing 100084China

Driver steering intention prediction provides an augmented solution to the design of an onboard collaboration mechanism between human driver and intelligent *** this study,a multi-task sequential learning framework is developed to pre-dict future steering torques and steering postures based on upper limb neuromuscular electromyography *** joint representation learning for driving postures and steering intention provides an in-depth understanding and accurate modelling of driving steering *** different testing scenarios,two driving modes,namely,both-hand and single-right-hand modes,are *** each driving mode,three different driving postures are further ***,a multi-task time-series transformer network(MTS-Trans)is developed to predict the future steering torques and driving postures based on the multi-variate sequential input and the self-attention *** evaluate the multi-task learning performance and information-sharing characteristics within the network,four distinct two-branch network architectures are *** validation is conducted through a driving simulator-based experiment,encompassing 2. *** pro-posed model achieves accurate prediction results on future steering torque prediction as well as driving posture recognition for both two-hand and single-hand driving *** findings hold significant promise for the advancement of driver steering assistance systems,fostering mutual comprehension and synergy between human drivers and intelligent vehicles.

关键词： Driver steering behaviours Neuromuscular dynamics Multi-task learning Sequential transformer Intelligent vehicles