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Electrolyte effect on electrochemical behaviors of manganese fluoride material for aqueous asymmetric and symmetric supercapacitors

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Rare Metals 2024年第3期43卷 1048-1061页

作者： Zheng-Hua He Jian-Fei Gao ling-Bin kong State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of TechnologyLanzhou730050China School of Materials Science and Engineering Lanzhou University of TechnologyLanzhou730050China

Exploring wide voltage window materials is not only an available measure to enhance the energy density of hybrid supercapacitor(HSCs),but also avoids the dynamic mismatch caused by different energy storage mechanisms of two electrodes in assembled symmetrical ***,there are few reports about the wide potential window materials except Bi_(2)O_(3)and VO_(2).Therefore,the MnF_(2)synthesized by solvothermal reaction was served as the electrode for *** MnF_(2)exhibited electrochemical activity in alkaline solution in three-electrode system,especially with a wide potential window from-0.8 to+0.5 V in 2 mol·L^(-1)***,the assembled MnF_(2)//MnF_(2)symmetrical HSC had a potential window of 1.5 V,and it exhibited outstanding long-cycle ***,when MnF_(2)was taken as the negative and positive respectively,the potential windows of asymmetric devices CoMoO_(4)//MnF_(2)and MnF_(2)//Activated Carbon(AC)could reach 1.3 and 1.45 V,respectively,showing excellent cycle *** work shows that MnF_(2)material has great research value in HSC,and provides a new research direction for developing high-performance devices.

关键词： Manganese fluoride Potential window Hybrid supercapacitors Electrochemical performance

Effects of Altitude Change on Nutritional Quality and Elymus nutans Regularity in Qinghai-Tibet Plateau

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Journal of Northeast Agricultural University(English Edition) 2021年第2期28卷 69-76页

作者： He Jing-lei Zhou Yan-tong kong ling-ze-lai Li Bing Yu Jin-qiu Gong Hao Sun Xue Cui Guo-wen College of Animal Sciences and Technology Northeast Agricultural UniversityHarbin 150030China

In order to reveal the effects of different altitudes on the nutritional quality of wild forage in Qinghai-Tibet Plateau,this study used Elymus nutans as the tested plants to evaluate the changes of nutrient contents and the correlation between the nutrient contents and *** sampling sites were set up at altitudes of 2562,2660,2775 and 2905 m with the vertical distance among each sampling point was about 100 *** results showed that the crude protein,ash and phosphorus contents of Elymus nutans decreased significantly with an increase in *** crude protein contents decreased by 1.87%with each 100 m increase in *** variation rule of crude protein contents with altitudes in the simulated curve was"y=-0.0187x+63.244(R^(2)=0.9557)".The crude ash contents decreased by 1.77%with each 100 m increase in *** variation rule of crude ash contents with altitudes in the simulated curve was"y=-0.0177x+56.144(R^(2)=0.978)".Neutral detergent fiber(NDF)and acid detergent fiber(ADF)showed an overall increasing trend with the increase of altitudes,but the most obvious increase was at 2775 *** contents of crude fat and Ca did not change regularly with altitudes.

关键词： Elymus nutans Griseb. Qinghai-Tibet Plateau nutritional quality grey correlation analysis

Vitamin D binding protein in psychiatric and neurological disorders:Implications for diagnosis and treatment

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Genes & Diseases 2024年第5期11卷 324-334页

作者： ling Li Bing Han Yan kong Gaojia Zhang Zhijun Zhang Research Institution of Neuropsychiatry School of MedicineSoutheast UniversityNanjingJiangsu 210009China Department of Neurology Affiliated Zhongda HospitalNanjingJiangsu 210009China Department of Pharmacology Jiangsu Provincial Key Laboratory of Critical Care MedicineSchool of MedicineSoutheast UniversityNanjingJiangsu 210009China Department of Biochemistry and Molecular Biology School of MedicineSoutheast UniversityNanjingJiangsu 210009China Brain Cognition and Brain Disease Institute Department of Mental Health and Public HealthFaculty of Life and Health SciencesShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518055China

Vitamin D binding protein(VDBP)serves as a key transporter protein responsible for binding and delivering vitamin D and its metabolites to target *** plays a crucial part in the inflammatory reaction following tissue damage and is engaged in actin *** research has shed light on its potential role in various diseases,leading to a growing interest in understanding the implications of VDBP in psychiatric and neurological *** purpose of this review was to provide a summary of the existing understanding regarding the involvement of VDBP in neurological and psychiatric *** examining the intricate interplay between VDBP and these disorders,this review contributes to a deeper understanding of underlying mechanisms and potential therapeutic *** gained from the study of VDBP could pave the way for novel strategies in the diagnosis,prognosis,and treatment of psychiatric and neurological disorders.

关键词： Neurological disorder Polymorphism Psychiatric disorder Structure Vitamin D binding protein

Optimized parameters of downhole all-metal PDM based on genetic algorithm

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Petroleum Science 2024年第4期21卷 2663-2676页

作者： Jia-Xing Lu ling-Rong kong Yu Wang Chao Feng Yu-Lin Gao China University of Geosciences (Beijing) Key Laboratory on Deep Geo-Drilling Technology of Ministry of Natural Resources

Currently, deep drilling operates under extreme conditions of high temperature and high pressure,demanding more from subterranean power motors. The all-metal positive displacement motor, known for its robust performance, is a critical choice for such drilling. The dimensions of the PDM are crucial for its performance output. To enhance this, optimization of the motor's profile using a genetic algorithm has been undertaken. The design process begins with the computation of the initial stator and rotor curves based on the equations for a screw cycloid. These curves are then refined using the least squares method for a precise fit. Following this, the PDM's mathematical model is optimized, and motor friction is assessed. The genetic algorithm process involves encoding variations and managing crossovers to optimize objective functions, including the isometric radius coefficient, eccentricity distance parameter,overflow area, and maximum slip speed. This optimization yields the ideal profile parameters that enhance the motor's output. Comparative analyses of the initial and optimized output characteristics were conducted, focusing on the effects of the isometric radius coefficient and overflow area on the motor's performance. Results indicate that the optimized motor's overflow area increased by 6.9%, while its rotational speed reduced by 6.58%. The torque, as tested by Infocus, saw substantial improvements of38.8%. This optimization provides a theoretical foundation for improving the output characteristics of allmetal PDMs and supports the ongoing development and research of PDM technology.

关键词： Positive displacement motor Genetic algorithm Profile optimization Matlab programming Overflow area

Reaction behavior of MgO refractory with high-Mn and high-Al steel

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Journal of Iron and Steel Research International 2024年第6期31卷 1389-1398页

作者： ling-zhong kong Lin Zu Jie Yang Xi-min Zang Xin Yang Ming Kang School of Materials and Metallurgy University of Science and Technology LiaoningAnshan 114051LiaoningChina

To understand the mechanism of the interfacial reaction between high-Mn and high-Al steel and MgO refractory,a series of laboratory experiments as well as thermodynamic calculations were *** effects of Mn and Al contents in the steel and the reaction time on the interfacial reaction were *** was observed that the erosion of the MgO refractory is caused by the reaction of Al and Mn in the steel with MgO in the refractory,which would lead to the formation of(Mn,Mg)O·Al_(2)O_(3) spinel and(Mn,Mg)O solid *** formation mechanism of the spinel and solid solution is as *** Al in the steel firstly reacts with MgO in the refractory to generate MgO·Al_(2)O_(3) spinel,and then,the spinel reacts with Mn in the steel to form(Mn,Mg)O·Al_(2)O_(3) ***,the MnO in the spinel reacts with the MgO in the inner refractory to form(Mn,Mg)O solid *** addition,only(Mn,Mg)O·Al_(2)O_(3) spinel is present in the interfacial reaction layer of the refractory when the Al content in the steel is sufficient.

关键词： High-Mn high-Al steel MgO refractory Reaction behavior Spinel

Microstructure and room temperature fracture toughness of Nb-Si-based alloys with Sr addition

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Rare Metals 2024年第8期43卷 3904-3912页

作者： Yong-Lin Huang Li-Na Jia Bin kong Yue-ling Guo Na Wang School of Materials Science and Engineering Beihang UniversityBeijing 100191China

Nb-Si-based alloys show great potential to surpass the widely used Ni-based *** element Sr is widely applied in aluminum and magnesium alloys,but reports about the effects of Sr on Nb-Si-based alloys are quite ***,Nb-Si-based alloys with nominal compositions of Nb-15Si-24Ti-4Cr-2Al-2Hf-0/0.05/0.15Sr(at%)were prepared by directional solidification and heat *** microstructural characterization and room temperature fracture toughness of Nb-Si-based alloy were systematically *** show that all these alloys consist of Nb_5Si_3 phase embedded within Nb solid solution(Nb_(ss)) *** Nb_(5)Si_(3) phase becomes refined and more discontinuous after adding minor *** for the fracture toughness,0.05 at% and 0.15 at% Sr additions do not cause significant *** discontinuous and refining mechanism of Sr element was studied,and the analysis of toughness decreasing with Sr addition reveals that the size of Nb_(ss) phase plays a crucial role in determining the fracture toughness.

关键词： Nb-Si alloy Refinement Discontinuous Fracture toughness Nb_(ss)

Decoding the fruit microbiome:A climate smart strategy to manage postharvest decays

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Horticultural Plant Journal 2024年第5期10卷 1061-1072页

作者： Manori Kuruppu kong Lih ling Phebe Ding Khairulmazmi Ahmad Asgar Ali Yasmeen Siddiqui Laboratory of Sustainable Agronomy and Crop Protection Institute of Plantation StudiesUniversiti Putra MalaysiaSerdang 43400Malaysia Department of Plant Protection Faculty of AgricultureUniversiti Putra MalaysiaSerdang 43400Malaysia Centre of Excellence for Post-harvest Biotechnology(CEFB) School of BiosciencesUniversity of Nottingham MalaysiaJalan Broga43500 SemenyihSelangorMalaysia Department of Biological Sciences College of ScienceKing Faisal UniversityAl Ahsa31982Saudi Arabia

There is an urgent necessity to shift our diets toward those rich in fruits and vegetables and at reduce postharvest losses of *** 20%e50%of fruits and vegetables are lost due to poor postharvest handling and pathogen infections in developing countries while it was estimated as 5%e35%in developed *** fruits have evolved with a plethora of microorganisms having important roles in maintaining fruit ***,little information is available on the dynamics,structure,and functional capacities of underpinning fruit *** present review discussed environmental conditions favoring fruit-harbored antagonists and their different modes of action for suppressing postharvest pathogens in *** also provides information on omics technologies such as next-generation sequencing(NGS),metaproteomics,metatranscriptomic,and metabolomics studies to characterize fruit *** the advent of NGS and meta-omics technologies,microbiome research could bring remarkable development and understanding in succeeding biological *** addition,they may provide us with a fundamental understanding of microclimate requirements for fruit microbiome establishment and microbiome shifts during post-harvest storage,which would be advantageous in developing composite biocontrol treatments for post-harvest decay management.

关键词： Biological control Food loss Fruit microbiome Meta-omics Microclimate Postharvest decay

Ascertaining the influences of auxiliary qubits on the Einstein–Podolsky–Rosen steering and its directions

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Chinese Physics B 2024年第5期33卷 213-221页

作者：邢玲玲杨欢张刚孔敏 School of Electrical and Photoelectronic Engineering West Anhui UniversityLu'an 237012China

Einstein–Podolsky–Rosen(EPR) steering is an example of nontrivial quantum nonlocality and characteristic in the non-classical *** directivity(or asymmetry) is a fascinating trait of EPR steering,and it is different from other quantum ***,we consider the strategy in which two atoms compose a two-qubit X state,and the two atoms are owned by Alice and Bob,*** atom of Alice suffers from a reservoir,and the atom of Bob couples with a bit flip *** influences of auxiliary qubits on EPR steering and its directions are revealed by means of the entropy uncertainty *** results indicate that EPR steering declines with growing time t when adding fewer auxiliary *** EPR steering behaves as damped oscillation when introducing more auxiliary qubits in the strong coupling *** the weak coupling regime,the EPR steering monotonously decreases as t increases when coupling auxiliary *** increases in auxiliary qubits are responsible for the fact that the steerability from Alice to Bob(or from Bob to Alice) can be more effectively ***,the introductions of more auxiliary qubits can change the situation that steerability from Alice to Bob is certain to a situation in which steerability from Bob to Alice is certain.

关键词： auxiliary qubits EPR steering directions influence

Poly(3-hexylthio) thiophene Field-effect Transistor Device Performance: Impact of the Content of Hexylthio Side Chain on Backbone

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Chinese Journal of Polymer Science 2024年第1期42卷 14-23,I0005页

作者： Hao-Yu Liu Lian-He Han ling-Wei kong Li-Ping Zhu Xiao-Lan Qiao Mei-Fang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China School of Electronic Information and Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

Regioregular poly(3-hexylthio)thiopene(P3HTT) has emerged tremendous potential in organic electronic applications due to the strong noncovalent interactions from the sulfur atom linked to thiophene. However, P3HTT generally exhibits low charge mobility mostly due to poor solution processability attributed to dense arrangement of hexylthio side chain in polymer, which led to strong noncovalent interactions among sulfur atoms. To balance the nonvalent interaction and aggregation for P3HTT, herein, we systematically study the effect of hexylthio side chain content in polymer backbone on the structure and properties. A series of regioregular P3HTT-based homopolymers(P3HTT, P3HTT-50,P3HTT-33 and P3HTT-25) were prepared via Kumada catalyst transfer polycondensation method from a set of mono-, bi-, ter-and quarterthiophenes containing different contents of hexylthio side chain. The DFT calculation shows the planarity of polymers backbone could be improved through reducing the density of hexylthio side chain in polymer mainchain. And significant changes in their crystallinity, aggregation and optical properties were observed with the content of hexylthio side chain reducing. The P3HTT-33 displayed the highest field-effect transistor hole mobility of 2.83×10^(-2) cm^(2)·V^(-1)·s^(-1) resulting from a balance between the crystallinity and planarity. This study demonstrates modulating the content of hexylthio side chain in P3HTT is an effective strategy to optimize the opto-electronic properties of polymer obtaining excellent semiconductor device performance.

关键词： Conjugated polymer Polythiophene Noncovalent interaction Molecular aggregation Organic field-effect transistor