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Post-Synthetic and In Situ Vacancy Repairing of Iron Hexacyanoferrate Toward Highly Stable Cathodes for Sodium-Ion Batteries

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Nano-Micro Letters 2022年第1期14卷 182-193页

作者： Min Wan Rui Zeng Jingtao Meng Zexiao cheng weilun chen Jiayu Peng Wuxing Zhang Yunhui Huang School of Mechanical Science and Engineering Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China School of Chemistry and Environmental Engineering Wuhan Polytechnic UniversityWuhan 430023People’s Republic of China State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China

Iron hexacyanoferrate(FeHCF)is a promising cathode material for sodium-ion ***,FeHCF always suffers from a poor cycling stability,which is closely related to the abundant vacancy defects in its ***,post-synthetic and in-situ vacancy repairing strategies are proposed for the synthesis of highquality FeHCF in a highly concentrated Na_(4)Fe(CN)_(6) *** the post-synthetic and in-situ vacancy repaired FeHCF products(FeHCF-P and FeHCF-I)show the significant decrease in the number of vacancy defects and the reinforced structure,which can suppress the side reactions and activate the capacity from low-spin Fe in *** particular,FeHCF-P delivers a reversible discharge capacity of 131 mAh g^(−1) at 1 C and remains 109 mAh g^(−1) after 500 cycles,with a capacity retention of 83%.FeHCF-I can deliver a high discharge capacity of 158.5 mAh g^(−1) at 1 *** at 10 C,the FeHCF-I electrode still maintains a discharge specific capacity of 103 mAh g^(−1) and retains 75% after 800 *** work provides a new vacancy repairing strategy for the solution synthesis of high-quality FeHCF.

关键词： Iron hexacyanoferrate Cathode Vacancy repairing Sodium-ion batteries

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TC4-DT钛合金切削加工参数研究

江苏建筑职业技术学院学报 2024年第1期24卷 59-63,93页

作者：殷志碗郝宇陈伟伦王东伟苏楠扬州工业职业技术学院智能制造学院江苏扬州225127

针对YG8和TiAlN涂层硬质合金两种刀具,通过单因素车削、低速铣削及正交高速铣削加工试验,探究刀具切削工艺参数对TC4-DT钛合金加工件表面粗糙度、表层硬度的影响规律。实验结果表明:钛合金的表面粗糙度随着切削三要素发生变化,切削速度... 详细信息

针对YG8和TiAlN涂层硬质合金两种刀具,通过单因素车削、低速铣削及正交高速铣削加工试验,探究刀具切削工艺参数对TC4-DT钛合金加工件表面粗糙度、表层硬度的影响规律。实验结果表明:钛合金的表面粗糙度随着切削三要素发生变化,切削速度越高,粗糙度越低;进给量越大,粗糙度越大;但随切削深度波动变化。使用TiAlN涂层硬质合金立铣刀进行加工得到的平均表面粗糙度小于YG8硬质合金立铣刀,且加工表面硬度变化更小,更适合用于TC4-DT的铣削加工。

关键词： TC4-DT钛合金切削加工表面粗糙度正交试验

A Link Prediction Similarity Index Based on Enhanced Local Path Method

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A Link Prediction Similarity Index Based on Enhanced Local P...

Si/Cu3_Si@C Composite Encapsulated in CNTs Network as High Performance Anode for Lithium Ion Batteries

第40届中国控制会议

作者： weilun chen Yinzuo Zhou Alibaba Business School Hangzhou Normal University

The index of link prediction based on local path considers the contribution of third order neighbors on the basis of the common neighbor index, which has strong randomness and ignores the influence of the particularity of network topology on particle transition probability. In order to resolve this problem, this paper proposes a enhanced local path（ELP） link prediction similarity index. The algorithm considers the contribution of the third order path should have the relationship with the degree of the nodes at both ends of the path. By calculating the similarity of node vectors, it redefines a similarity index based on enhanced local path. We apply it to four different types of networks. Finally, the index proposed in this paper is compared with five classical similarity indexes. The results show that the prediction algorithm based on enhanced local path index has higher accuracy than other indexes.

关键词： Link Prediction Enhanced Local Path Similarity Indexes

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Journal of Wuhan University of Technology(Materials Science) 2019年第5期34卷 1055-1061页

作者： LU Haoqi XUE Lihong ZHANG Wuxing State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China BTR New Energy Materials Inc. Shenzhen 518106China

Si/Cu3Si@C composites encapsulated in CNTs network(SCC-CNTs) were synthesized via the combination of ball-milling and CVD methods. SCC-CNTs consist of conductive Cu3Si, amorphous carbon layer, cross-linked CNTs, and the etched pores, which can play the synergistic effects on the improvement of electronic conductivity and Li^+ diffusion. The volume expansion of Si anode is also suppressed during the electrochemical process. The SCC-CNTs composites demonstrate a remarkably improved electrochemical performance compared with pure Si, which can deliver a discharge capacity of 2 171 mAh·g^-1 at 0.4 A·g^-1 with ICE of 85.2%, and retain 1197 mAh· g^-1 after 150 cycles. This work provides a facile approach to massively produce the high-performance Si-based anode materials for next-generation LIBs.

关键词： lithium-ion battery anodes silicon-based composite CNTs Cu3Si

Research on Link Prediction Based on Compatibility of Chinese Medicinal Materials

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Research on Link Prediction Based on Compatibility of Chines...

Single-base editing in IGF2 improves meat production and intramuscular fat deposition in Liang Guang Small Spotted pigs

第40届中国控制会议

作者： chencheng Wu Yinzuo Zhou weilun chen Alibaba Business School Hangzhou Normal University

Link prediction is a network analysis method to solve practical problems and has important research value in many fields. In the field of traditional Chinese medicine, according to the different needs of the disease and the different characteristics of the drugs, the combination of the two drugs is called drug *** on traditional Chinese medicine network, this study provides a new research perspective based on complex network and link prediction. Aiming at the problem of strong randomness in the traditional random walk, a new link prediction method based on graph embedding method is proposed in this *** with the traditional random walk, the index proposed in this paper improves the performance greatly. Through link prediction, it is verified that the drug pair without compatibility in the existing prescription may appear in the future prescription,as a supplement to the new drug pair.

关键词： Link Prediction Chinese Medicinal Materials Random Walk

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Journal of Animal Science and Biotechnology 2024年第1期15卷 108-126页

作者： Tianqi Duo Xiaohong Liu Delin Mo Yu Bian Shufang Cai Min Wang Ruiqiang Li Qi Zhu Xian Tong Ziyun Liang weilun Jiang Shiyi chen Yaosheng chen Zuyong He State Key Laboratory of Biocontrol School of Life SciencesSun Yat-Sen UniversityGuangzhou 510275GuangdongChina Department of Pharmacology(the State‑Province Key Laboratories of Biomedicine‑Pharmaceutics of China Key Laboratory of Cardiovascular ResearchMinistry of Education)College of PharmacyHarbin Medical UniversityHarbin 150081China Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal College of Animal Science and TechnologyHunan Agricultural UniversityChangsha 410128China

Background Chinese indigenous pigs are popular with consumers for their juiciness,flavour and meat quality,but they have lower meat ***-like growth factor 2(IGF2) is a maternally imprinted growth factor that promotes skeletal muscle growth by regulating cell proliferation and differentiation.A single nucleotide polymorphism(SNP) within intron 3 of porcine IGF2 disrupts a binding site for the repressor,zinc finger BED-type containing 6(ZBED6),leading to up-regulation of IGF2 and causing major effects on muscle growth,heart size,and backfat *** favorable mutation is common in Western commercial pig populations,but absent in most Chinese indigenous pig *** improve meat production of Chinese indigenous pigs,we used cytosine base editor 3(CBE3)to introduce IGF2 intron3-C3071T mutation into porcine embryonic fibroblasts(PEFs) isolated from a male Liang Guang Small Spotted pig(LGSS),and single-cell clones harboring the desired mutation were selected for somatic cell nuclear transfer(SCNT) to generate the founder line of IGF2^(T/T) *** We found the heterozygous progeny IGF2^(C/T) pigs exhibited enhanced expression of IGF2,increased lean meat by 18%-36%,enlarged loin muscle area by 3%-17%,improved intramuscular fat(IMF) content by 18%-39%,marbling score by 0.75-1,meat color score by 0.53-1.25,and reduced backfat thickness by 5%-16%.The enhanced accumulation of intramuscular fat in IGF2^(C/T) pigs was identified to be regulated by the PI3K-AKT/AMPK pathway,which activated SREBP1 to promote *** We demonstrated the introduction of IGF2-intron3-C3071T in Chinese LGSS can improve both meat production and quality,and first identified the regulation of IMF deposition by IGF2 through SREBP1 via the PI3KAKT/AMPK signaling *** study provides a further understanding of the biological functions of IGF2and an example for improving porcine economic traits through precise base editing.

关键词： CBE3 IGF2 Intramuscular fat Meat production PI3K-AKT/AMPK ZBED6

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青草沙水库工程对河床冲淤演变的影响

水利水电科技进展 2018年第4期38卷 44-50页

作者：陈伟伦王伟河海大学港口海岸与近海工程学院江苏南京210098 中交海洋投资控股有限公司海南三亚572000

为了探究长江口青草沙水库建设前后工程周边的水动力环境和河床泥沙冲淤变化,通过平面二维潮流悬沙数值模拟,结合改进后可以同时计算淤积和冲刷强度的王义刚公式进行冲淤计算。研究结果表明,水库建成后,长兴岛北侧航道的分流比和流速下... 详细信息

为了探究长江口青草沙水库建设前后工程周边的水动力环境和河床泥沙冲淤变化,通过平面二维潮流悬沙数值模拟,结合改进后可以同时计算淤积和冲刷强度的王义刚公式进行冲淤计算。研究结果表明,水库建成后,长兴岛北侧航道的分流比和流速下降,南侧航道的分流比和流速上升;水库南侧航道整体呈冲刷状态,而北侧航道整体呈淤积状态,南侧航道变化量小于北侧航道,工程的实施对北侧航道水下地形的影响较南侧大;改进后的王义刚公式对水库周边冲淤的计算结果与工程建设后实测地形和数值模型结果吻合较好。

关键词：青草沙水库工程冲淤演变数值模型经验公式

In situ protection of a sulfur cathode and a lithium anode via adopting a fluorinated electrolyte for stable lithium-sulfur batteries

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Science China Materials 2021年第9期64卷 2127-2138页

作者： Xue chen Haijin Ji weilun chen Jingyi Wu Fei Hu Lixia Yuan Zhen Li Yunhui Huang State Key Laboratory of Material Processing and Die and Mold Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

Lithium-sulfur(Li-S)batteries are regarded as one of the most promising next-generation energy storage systems due to their high theoretical energy density and low material ***,the conventional ether-based electrolytes of Li-S batteries are extremely flammable and have high solubility of lithium polysulfides(LiPS),resulting in a high safety risk and a poor life ***,we report an ether/carbonate co-solvent fluorinated electrolyte with a special solvation sheath of Li^(+),which can prevent the formation of dissoluble long-chain LiPS of the sulfur cathode,restrict Li dendrite growth at the anode side,and show fire resistance in combustion *** a result,the proposed Li-S batteries with 70 wt%sulfur content in its cathode deliver stable life cycle,low self-discharge ratio,and intrinsic ***,the unique passivation characteristics of the designed fluorinated electrolyte break several critical limitations of the traditional“liquid phase”-based Li-S batteries,offering a facile and promising way to develop long-life and high-safety Li-S batteries.

关键词： Li-S batteries multifunctional electrolyte solidphase sulfur conversion Li metal anode

Molecular insights into self-incompatibility systems:From evolution to breeding

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Plant Communications 2024年第2期5卷 23-45页

作者： Diyang Zhang Yuan-Yuan Li Xuewei Zhao Cuili Zhang Ding-Kun Liu Siren Lan weilun Yin Zhong-Jian Liu Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Forestry Fujian Agriculture and Forestry UniversityFuzhou 350002China College of Biological Sciences and Technology Beijing Forestry UniversityBeijing 100083China

Plants have evolved diverse self-incompatibility(SI)systems for *** Darwin’s time,consid-erable progress has been made toward elucidating this unrivaled reproductive *** advances in interdisciplinary studies and applications of biotechnology have given rise to major break-throughs in understanding the molecular pathways that lead to SI,particularly the strikingly different SI mechanisms that operate in Solanaceae,Papaveraceae,Brassicaceae,and *** best-un-derstood SI systems,together with discoveries in other"nonmodel"SI taxa such as Poaceae,suggest a complex evolutionary trajectory of SI,with multiple independent origins and frequent and irreversible *** exploration of self-/nonself-discrimination signaling cascades has revealed a compre-hensive catalog of male and female identity genes and modifier factors that control *** also enable the characterization,validation,and manipulation of SI-related factors for crop improvement,helping to address the challenges associated with development of inbred ***,we review current knowledge about the evolution of SI systems,summarize key achievements in the molecular basis of pol-len‒pistil interactions,discuss potential prospects for breeding of SI crops,and raise several unresolved questions that require further investigation.

关键词： self-incompatibility S-RNase evolution genome editing crop improvement