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Phase engineering of Ni-Mn binary layered oxide cathodes for sodiumion batteries

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Journal of Energy Chemistry 2024年第4期91卷 501-511页

作者： Feifei Hong Xin Zhou Xiaohong Liu guilin Feng Heng Zhang Weifeng Fan Bin Zhang Meihua Zuo Wangyan Xing Ping Zhang Hua Yan Wei Xiang college of Materials and Chemistry&Chemical Engineering Chengdu University of TechnologyChengdu 610059SichuanChina college of Chemical Engineering Sichuan UniversityChengdu 610065SichuanChina Research Institute for electronic science(RIES)and Division of Information science and technology Graduate School of Information Science and TechnologyHokkaido UniversityN20W10SapporoHokkaido 001-0020Japan School of Materials science and Engineering Suzhou University of Science and TechnologySuzhou 215009JiangsuChina Yibin Libode New Materials Co. Ltd.Yibin 644200SichuanChina Engineering Research Center of the Ministry of Education for Advanced Battery Materials School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083HunanChina

Nickel-manganese binary layered oxides with high working potential and low cost are potential candidates for sodium-ion batteries,but their electrochemical properties are highly related to compositional *** composite materials with various phase structures of P3,P2/P3,P2,P2/O3,and P2/P3/O3 were synthesized by manipulating the sodium content and calcination conditions,leading to the construction of a synthetic phase diagram for Na_(x)Ni_(0.25)Mn_(0.75)O_(2)(0.45≤x≤1.1).Then,we compared the electrochemical characteristics and structural evolution during the desodiation/sodiation process of P2,P2/P3,P2/03,and P2/P3/O3-Na_(x)Ni_(0.25)Mn_(0.75)O_(2).Among them,P2/P3-Na0.75Ni0.25Mn0.75O2exhibits the best rate capability of 90.9 mA h g^(-1)at 5 C,with an initial discharge capacity of 142.62 mA h g^(-1)at 0.1 C and a capacity retention rate of 78.25%after 100 cycles at 1 C in the voltage range of 2-4.3 *** observed superior sodium storage performance of P2/P3 hybrids compared to other composite phases can be attributed to the enhanced Na^(+)transfer dynamic,reduction of the Jahn-teller effect,and improved reaction reversibility induced by the synergistic effect of P2 and P3 *** systematic research and exploration of phases in Na_(x)Ni_(0.25)Mn_(0.75)O_(2)provide new sights into high-performance nickel-manganese binary layered oxide for sodium-ion batteries.

关键词： Phase engineering Ni-Mn layered oxide Cathode Sodium-ion batteries

Modeling and Designing Based on VHDL for Digital MSK Modulator and Demodulator

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微计算机信息 2006年第20期 208-210页

作者： Duan,Jihai Hu,Yuanyuan(guilin university of electronic technology, guilin 541004,china)

For the conventional modulation and demodulation of Minimum Frequency Shift Keying(MSK), the new models for modu- lation and demodulation on digital MSK based on VHDL are developed. The new models can made it easy to realize MSK modula- tion and demodulation on a target chip of FPGA/CPLD. A specific phase meter module is used to control the phase continuation of modulated signals in the new MSK modulator. And a comparator and counters, among them with specific relations, are designed in the new MSK demodulator. Based on VHDL, by the system designing and simulating, the results show no difference both in theory and in experiment.

关键词： MSK Phase Continuation VHDL Phase Meter.

Cholangiocarcinoma combined with biliary obstruction:an exosomal circRNA signature for diagnosis and early recurrence monitoring

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2642-2654页

作者： Ningyuan Wen Dingzhong Peng Xianze Xiong Geng Liu guilin Nie Yaoqun Wang Jianrong Xu Shaofeng Wang Sishu Yang Yuan Tian Bei Li Jiong Lu Nansheng Cheng Division of Biliary Surgery Department of General SurgeryWest China HospitalSichuan UniversityChengduSichuanChina Research Center for Biliary Diseases West China HospitalSichuan UniversityChengduSichuanChina

Cholangiocarcinoma(CCA)is a highly malignant biliary tract cancer with currently suboptimal diagnostic and prognostic *** present a novel system to monitor CCA using exosomal circular RNA(circRNA)via serum and biliary liquid biopsies.A pilot cohort consisting of patients with CCA-induced biliary obstruction(CCA-BO,n=5)and benign biliary obstruction(BBO,n=5)was used to identify CCA-derived exosomal circRNAs through microarray *** was followed by a discovery cohort(n=20)to further reveal a CCA-specific circRNA complex(hsa-circ-0000367,hsa-circ-0021647,and hsa-circ-0000288)in both bile and serum *** vitro and in vivo studies revealed the three circRNAs as promoters of CCA *** and prognostic models were established and verified by two independent cohorts(training cohort,n=184;validation cohort,n=105).An interpreter-free diagnostic model disclosed the diagnostic power of biliary exosomal circRNA signature(Bile-DS,AUROC=0.947,RR=6.05)and serum exosomal circRNA signature(Serum-DS,AUROC=0.861,RR=4.04)compared with conventional CA19-9(AUROC=0.759,RR=2.08).A prognostic model of CCA undergoing curative-intent surgery was established by calculating early recurrence score,verified with bile samples(Bile-ERS,C-index=0.783)and serum samples(Serum-ERS,C-index=0.782).These models,combined with other prognostic factors revealed by COX-PH model,enabled the establishment of nomograms for recurrence monitoring of *** study demonstrates that the exosomal triple-circRNA panel identified in both bile and serum samples serves as a novel diagnostic and prognostic tool for the clinical management of CCA.

关键词： biliary diagnosis Serum

Study on Intention and Forming Conditions of SMT-MG

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武汉理工大学学报 2006年第S2期28卷 448-452页

作者： SHANG Yuling~1 LI Chunquan~2 1.Dept.of electronic Engineering,guilin university of electronic technology,guilin 541004,china 2.Dept.of electronic Machinery and Traffic Engineering,guilin university of electronic technology,guilin 541004,china Dept.of electronic Engineering Guilin University of Electronic TechnologyGuilin 541004China Dept.of electronic Machinery and Traffic Engineering Guilin University ofElectronic TechnologyGuilin 541004China

Surface Mount technology Manufacturing Grid (SMT-MG) is the application of the grid technology in the SMT product *** this paper,as the new manufacturing mode of SMT product,SMT-MG was brought *** the concept and intention of the SMT-MG were *** from the three aspects of sufficient condition,necessary condition and stability condition,the static and dynamic conditions under which the SMT-MG was formed were mainly ***,it was proved that the formation and development of SMT-MG is feasible and necessary.

关键词： SMT-MG necessary condition sufficient condition

Influence of Pr Content on the Sructure and Giant Magnetoresistance of Pr_x(Co_(40)Ag_(60))_(100-x) Granular Films

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Journal of Wuhan university of technology(Materials science) 2011年第1期26卷 1-3页

作者：成钢 School of Materials science and Engineering Guilin University of Electronic Technology Guangxi Key Laboratory of Information Materials

Prx（Co40Ag60）100-x （x=0, 0.5, 1, 1.5, 2, 3） granular films have been prepared by DC magneto controlled sputtering method. The XRD data indicated that Pr element favors the （111） plane preferential orientation. Magnetic measurements indicate that the average size of magnetic particles decreases as Pr content increases. For relatively low addition of Pr to CoAg granular films, Pr element can enhance GMR value and a peak value of about -14.3% is obtained at x=1.

关键词： giant magnetoresistance granular films magnetic particle

A new grid-associated algorithm in the distributed hydrological model simulations

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science china(Technological sciences) 2010年第1期53卷 235-241页

作者： XU Rui1,2,HUANG XiaoXue1,LUO Lin1 & LI ShaoCai3 1 State Key Laboratory of Hydraulics and Mountain River Engineering college of Architecture and Environment,Sichuan university,Chengdu 610065,china 2 college of electronic Engineering,guilin university of electronic technology,guilin 541004,china 3 college of Life sciences,Sichuan university,Chengdu 610065,china 1. State Key Laboratory of Hydraulics and Mountain River Engineering college of Architecture and Environment Sichuan University Chengdu 610065 China2. College of Electronic Engineering Guilin University of Electronic Technology Guilin 541004 China3. College of Life Sciences Sichuan University Chengdu 610065 China

This paper presents a new grid-associated algorithm to improve the performance of a D8 algorithm based distributed hydrological model *** algorithm is based on the well known single-flow D8 algorithm of grid *** algorithm allocates calculation priorities according to the distance between the units and the outlet,then carries out the ergodic computations of the hydrological units according to the priority *** the parallelized algorithm,a standard thread-level shared memory system for parallel programming(OpenMP-Open specifications for Multi Processing) was introduced,and the parallel coding was implemented in C lan-guage.A case study showed that the absolute speed-up ratio of the grid-associated algorithm is 1.64 over the original D8 algorithm,and the linear speed-up ratio of the parallel associated algorithm is 2.42 under 4 *** parallel grid-associated algorithm can be applied to a variety of research fields that use the grid method.

关键词： distributed hydrological model grid-association algorithm OpenMP parallel computing

Preparation,Structure and Dielectric Properties of Tungsten Bronze Ferroelectrics in SrO-Eu_2O_3-TiO_2-Nb_2O_5 System

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Journal of Wuhan university of technology(Materials science) 2011年第2期26卷 312-315页

作者：胡长征 State Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing Guilin University of Technology Key Laboratory of Nonferrous Materials and New Processing technology Ministry of EducationGuilin University of Technology State Key Laboratory of Advanced technology for Materials Synthesis and Processing Wuhan University of Technology

Compounds Sr4Eu2Ti4Nb6O30 and Sr5EuTi3Nb7O30 with filled tetragonal tungsten bronze structure were prepared,and the dielectric characteristics and ferroelectric transition were *** ceramics displayed weak frequency dependence in room temperature dielectric constant,which decreased from 125 to 118 for Sr4Eu2Ti4Nb6O30,from 206 to 195 for Sr5EuTi3Nb7O30 in the frequency range of 10 kHz to 1 *** present ceramics showed a diffuse ferroelectric phase *** frequency independent transition temperature （Tm） indicated the above compounds had no relaxor *** diffuseness （γ） was 1.45 and 1.64 for Sr4Eu2Ti4Nb6O30 and Sr5EuTi3Nb7O30 *** weak ferroelectric of the present materials are indicated from the P-E hysteresis loops,and a small 2Pr of 0.596 μC/cm2 and 0.068 μC/cm2 were observed for Sr4Eu2Ti4Nb6O30 and Sr5EuTi3Nb7O30 respectively.

关键词： tungsten bronze dielectric properties X-ray diffraction phase transition

Theorems for Testing Local Activity of CNN and Application to Cardiac Purkinje Equations

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International Journal of Minerals,Metallurgy and Materials 2000年第2期14卷 139-146页

作者： Lequan Min(applied science School, university of science and technology Beijing, Beijing 100083, china) applied science School University of Science and Technology Beijing Beijing 100083 China

The theorems for testing the local in one-port cellular neural/inear network (CNN) cells with four local state variables are presented. Using the theorems computes the bifurcation diagrams of the cardiac Purkinje fiber (CPE) equations Which describethe long-lasting action and pace-maker potentials of the Purkinje fiber of the heart. The computer simulation shows that periodic trajectories or convergent trajectories of the CPF Equations can be foun if the cormsponing cell Parameters are located in a positive domainbut nearby edge of chaos. In particular a heart with approximate normal frequency of heartbeat but non-normal electrocardiogram maysuddenly stop by slightly perturbing the parameters of the corresponding CPF Equations when the Paramders are located nearby the edge of chaos in the bifurcation diagrams. This research seems to interpret reasonbly the phenomena that patients with cardiac diseases might suddenly die without warning.

关键词： cellular neural network local activity cardiac Purkinje fiber heartbeat

New stylophorans(Echinodermata) from the Upper Cambrian of Guangxi,South china

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science china Earth sciences 2008年第2期51卷 181-186页

作者： HAN NaiRen1 & CHEN GuiYing1,2 1 Department of Resources and Environmental Engineering, guilin university of technology, Gulin 541004, china 2 Faculty of Earth sciences, china university of Geoscience, Wuhan 430074, china Department of Resources and Environmental Engineering Guilin University of Technology Gulin 541004 China Faculty of Earth sciences China University of Geoscience Wuhan 430074 China

This paper describes for the first time the cornute stylophorans (Echinodermata) in china. The new material came from the Guole Formation of the Furongian (Late Cambrian) in the Guole area of Jingxi, Guangxi Province, South china. These new cornute specimens are preserved in situ and found along with well-preserved trilobites and brachiopods. One new species, Phyllocystis jingxiensis sp. nov., is proposed to accommodate these unusual materials. The new species is defined by the small, heart-shaped theca with the frame composed of ten narrow, smooth and thick marginal plates, three adoral plates and distinctive zygal and aulacophore. Both supracentrals and infracentrals are polygonal-outlined. The marginal plate M1' on the inferior face extends posteriorly to form zygal that possesses a broadened proximal end and the proximal portion joining with the conjunction between M4 and M5 on the inferior face. Aulacophore comprises ten segments at its proximal part and is conical at the middle part (named stylocone). Its distal portion is rather long and bears conspicuous ambulacrum grooves. Tectals are horizontally arranged on superior face and obliquely arranged on inferior face. Both cothurnopore and anal pyramid are vaguely seen on the right anterior corner and the extremity of theca's superior face.

关键词： Phyllocystis Stylophora Echinodermata Cambrian Guangxi South china