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Nano Research 2024年第9期17卷 8045-8067页

作者： ziyang huang Zhenghua Wang Lei Zhou Jun Pu Key Laboratory of Functional Molecular Solids(Ministry of Education) College of Chemistry and Materials ScienceAnhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage MaterialsAnhui Normal UniversityWuhu 241000China School of Energy and Power Engineering Jiangsu UniversityZhenjiang 212013China Department of Electrical Engineering Eindhoven University of TechnologyEindhoven MB 5600The Netherlands

Lithium-sulfur(Li-S)batteries hold the potential to revolutionize energy storage due to the high theoretical capacity and energy ***,the commercialization process is seriously hindered by the rapid capacity decay and low utilization of sulfur,caused by the inevitable slow dynamics and the“shuttle effect”.The incorporation of metal-based electrocatalysts into sulfur cathodes shows promise in promoting the conversion of lithium polysulfides(LiPSs),reducing the“shuttle effect”,and enhancing cell kinetics and cycle *** these,Fe-based materials,characterized by environmental friendliness,low cost,abundant reserves,and high activity,are extensively used in sulfur cathode *** article reviews the advancements of Fe-based materials in enhancing Li-S batteries in recent *** from single/multi-component Fe-based metal compounds and single/bimetallic atoms,the influence of different Fe coordination environments on the conversion mechanism of LiPSs is *** is hoped that this review and the proposed prospects can further stimulate the development and application of the Fe element in Li-S batteries in the future.

关键词： Li-S batteries Fe-based nanomaterials shuttle effect reaction kinetics

Cyber-physical Collaborative Restoration Strategy for Power Transmission System Considering Maintenance Scheduling

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1331-1341页

作者： Baozhong Ti Chuanyun Zhang Jingfei Liu Zhaoyuan Wu ziyang huang North China Branch of State Grid Corporation of China Beijing 100053China State Grid Beijing Electric Power Company Beijing 100031China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources School of Electrical and Electronic EngineeringNorth China Electric Power UniversityBeijing 102206China IEEE CSEE

In order to improve the ability of power transmission system to cope with compound faults on the communication side and power side,a cyber-physical collaborative restoration strategy is ***,according to the information system’s role in fault diagnosis,remote control of equipment maintenance and automatic output adjustment of generator restoration,a cyber-physical coupling model is *** this basis,a collaborative restoration model of power transmission system is established by studying interactions among maintenance schedule paths,information system operation,and power system *** on power flow linearization and the large M-ε method,the above model is transformed into a mixed integer linear programming model,whose computational burden is reduced further by the clustering *** to the parameters of IEEE39 New England system,the geographic wiring diagram of the cyber-physical system is *** results show the proposed restoration strategy can consider the support function of the information system and space-time coordination of equipment maintenance at both sides comprehensively to speed up load recovery progress.

关键词： Clustering method collaborative restoration cyber-physical power system maintenance scheduling power transmission system restoration

A Novel Named Entity Recognition Scheme for Steel E-Commerce Platforms Using a Lite BERT

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Computer Modeling in Engineering & Sciences 2021年第10期129卷 47-63页

作者： Maojian Chen Xiong Luo Hailun Shen ziyang huang Qiaojuan Peng School of Computer and Communication Engineering University of Science and Technology BeijingBeijing100083China Beijing Key Laboratory of Knowledge Engineering for Materials Science Beijing100083China Shunde Graduate School University of Science and Technology BeijingFoshan528399China Ouyeel Co. Ltd.Shanghai201999China

In the era of big data,E-commerce plays an increasingly important role,and steel E-commerce certainly occupies a positive ***,it is very difficult to choose satisfactory steel raw materials from diverse steel commodities online on steel E-commerce platforms in the purchase of *** order to improve the efficiency of purchasers searching for commodities on the steel E-commerce platforms,we propose a novel deep learning-based loss function for named entity recognition(NER).Considering the impacts of small sample and imbalanced data,in our NER scheme,the focal loss,the label smoothing,and the cross entropy are incorporated into a lite bidirectional encoder representations from transformers(BERT)model to avoid the ***,through the analysis of different classic annotation techniques used to tag data,an ideal one is chosen for the training model in our proposed *** are conducted on Chinese steel E-commerce *** experimental results show that the training time of a lite BERT(ALBERT)-based method is much shorter than that of BERT-based models,while achieving the similar computational performance in terms of metrics precision,recall,and F1 with BERT-based ***,our proposed approach performs much better than that of combining Word2Vec,bidirectional long short-term memory(Bi-LSTM),and conditional random field(CRF)models,in consideration of training time and F1.

关键词： Named entity recognition bidirectional encoder representations from transformers steel E-commerce platform annotation technique

A review on current conventional and biotechnical approaches to enhance biosynthesis of steviol glycosides in Stevia rebaudiana

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Chinese Journal of Chemical Engineering 2021年第2期34卷 92-104页

作者： Samra Basharat ziyang huang Mengyue Gong Xueqin Lv Aqsa Ahmed Iftikhar Hussain Jianghua Li Guocheng Du Long Liu Science Center for Future Foods Jiangnan UniversityWuxi 214122China Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of EducationJiangnan UniversityWuxi 214122China School of Food Science and Technology Jiangnan UniversityWuxi 214122China

Stevia rebaudiana Bertoni is commonly called stevia and mostly found in the north east regions of South *** is an herbaceous and shrubby plant belonging to the Asteraceae *** is considered as a natural sweetener and a commercially important plant *** leaves of *** contain steviol glycosides(SGs)which are highly potent and non-caloric *** sweetening property of *** is contributed to the presence of these high potency,calorie free steviol *** are considerably suitable for replacing sucrose and other artificial sweetening agents which are used in different industries and *** amount in the plant mostly varies from 8%to 10%,and the enhancement of SGs is always in *** glycosides have the potential to become healthier alternatives to other table sugars for having desirable taste and zero *** are almost 300 times sweeter than *** used as alternative sugar intensifier the commercial value of this plant in biopharmaceutical,food and beverages industries and in international market is increasing day by *** have made stevia an important part of the medicinal world as well as the food and beverage industry,but the limited production of plant material is not fulfilling the higher global market ***,researchers are working worldwide to increase the production of important SGs through the intercession of different biotechnological approaches in *** review aims to describe the emerging biotechnological strategies and approaches to understand,stimulate and enhance biosynthesis of secondary metabolites in *** and biotechnological methods for the production of steviol glycosides have been briefly reviewed and discussed.

关键词： Steviol glycosides Biosynthesis Secondary metabolites Stevia rebaudiana

Deep ultraviolet hydrogel based on 2D cobalt-doped titanate

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Light(Science & Applications) 2023年第1期12卷 68-76页

作者： Youan Xu Baofu Ding ziyang huang Lixin Dai Peng Liu Bing Li Wei Cai Hui-Ming Cheng Bilu Liu Xi'an Research Institute of High Technology Xi'an 710025China Shenzhen Geim Graphene Center Tsinghua-Berkeley Shenzhen Institute and Institute of Materials ResearchTsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Institute of Technology for Carbon Neutrality/Faculty of Materials Science and Engineering Shenzhen Institute of Advanced TechnologyCASShenzhen 518055China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China

Birefringent optical elements that work in deep ultraviolet(DUV)region become increasingly important these ***,most of the DUV optical elements have fixed birefringence which is hard to be ***,we invent a birefringence-tunable optical hydrogel with mechano-birefringence effect in the DUV region,based on two-dimensional(2D)low-cobalt-doped *** 2D oxide material has an optical anisotropy factor of 1.5×10^(-11) C^(2)J^(-1) m-1,larger than maximum value obtained previously,leading to an extremely large specific magneto-optical Cotton-Mouton coefficient of 3.9×10^(6) T^(-2) *** extremely large coefficient enables the fabrication of birefringent hydrogel in a small magnetic field with an ultra-low concentration of 2D oxide *** hydrogel can stably and continuously modulate 303 nm DUV light with large phase tunability by varying the strain(compression or stretching)from 0 to 50%.Our work opens the door to design and fabricate new proof-of-concept DUV birefringence-tunable element,as demonstrated by optical hydrogels capable of DUV modulation by mechanical stimuli.

关键词： tunable ultraviolet coefficient

Chitin deacetylase:from molecular structure to practical applications

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Systems Microbiology and Biomanufacturing 2022年第2期2卷 271-284页

作者： ziyang huang Xueqin Lv Guoyun Sun Xinzhu Mao Wei Lu Yanfeng Liu Jianghua Li Guocheng Du Long Liu Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of EducationJiangnan UniversityWuxi 214122China Science Center for Future Foods Jiangnan UniversityWuxi 214122China Shandong Runde Biotechnology Co. Ltd.Tai’an 271000China

Chitosan and chitooligosaccharides(COS),as derivatives of chitin through deacetylation reaction,have broad applications due to their good biodegradability,biocompatibility,and *** addition,chitosan and COS are involved in cell wall morphogenesis and host–pathogen interactions in *** deacetylases(CDAs)are enzymes that can catalyze the deN-acetylation of *** are widely distributed in protozoa,algae,bacteria,fungi,and insects with important physiological *** with the traditional chemical method,enzymatic catalysis by CDAs provides an enzymatic catalysis method to produce chitosan and COS with controllable deacetylation site and environmental *** characteristics attract researchers to produce CDAs by fungicides or ***,researches on heterologous expression and directed evolution of CDAs are still *** this review,we summarize the latest knowledge of CDAs,especially for heterologous expression systems and directed evolution strategies,which may contribute to the industrial production and future application of CDAs.

关键词： Chitin deacetylases Chitosan Chitooligosaccharides Heterologous expression Directed evolution

Strong size effect on deformation twin-me diate d plasticity in body-centered-cubic iron

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Journal of Materials Science & Technology 2023年第13期144卷 235-242页

作者： Ligong Zhao Guoxujia Chen He Zheng Shuangfeng Jia Kaixuan Li Renhui Jiang Lei Li Ying Zhang Huayu Peng Peili Zhao ziyang huang Jianbo Wang School of Physics and Technology Center for Electron MicroscopyMOE Key Laboratory of Artificial Micro-and Nano-structuresand Institute for Advanced StudiesWuhan UniversityWuhan 430072China Suzhou Institute of Wuhan University SuzhouJiangsu 215123China Wuhan University Shenzhen Research Institute ShenzhenGuangdong 518057China

Deformation twinning serves as an important mode of plastic dissipation processes in nanoscale body-centered cubic(BCC)metals,but its origin and spatio-temporal features are ***,applying in situ tensile experiments,we report a strong size effect on mediating the twinning behaviors and twin boundary(TB)-dislocation interaction mechanisms in BCC iron(Fe)nanowires(NWs).There exists a critical diameter(d)of∼2.5 nm,above which the deformation twinning rather than dislocation slip dominates the *** the traditional reflection TBs,the intermediate isosceles TBs are consis-tently observed as mediated by the 1/12partial ***,we uncover two distinct TB-related deformation mechanisms,including twin variant re-orientation and TB cracking for NWs with d17 nm,*** molecular dynamics and statics simulations provide the basic underlying mechanisms for size-dependent plasticity,which have been largely overlooked in previous experimental *** findings highlight the importance of grain size in mediating the deformation behaviors in Fe,serving as possible guidance for exploring single-crystalline and poly-crystalline Fe-based materials(***)with optimized mechanical performance.

关键词： Size effect Full dislocation,Isosceles twin boundary Twin variant rotation TB cracking

Current advances in design and engineering strategies of industrial enzymes

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Systems Microbiology and Biomanufacturing 2021年第1期1卷 15-23页

作者： Tanatarov Dinmukhamed ziyang huang Yanfeng Liu Xueqin Lv Jianghua Li Guocheng Du Long Liu Science Center for Future Foods Jiangnan UniversityWuxi 214122China Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of EducationJiangnan UniversityWuxi 214122China

Enzymes are considered as functional proteins,also known as biocatalysts,which are required for normal cellular *** commercial production of enzymes with distinct features always remains the top priority of researchers for industrial ***,the insufficient yield,low stability,low activity,formation of by-products,complex purification pro-cess,and many other factors are challenging for the enzyme production *** advancements in protein engineering,especially the combination of multidisciplinary techniques including post-translational enzyme modification,structured assisted protein tailoring and computational modeling approaches,open a new horizon to more efficient production of *** this review,we focus on the development process of enzyme modification design strategies,such as rational design,semi-rational design and de novo *** examples for each strategy,which are particularly useful for novel enzyme design,are *** hope this review is helpful for the development of biocatalysts for industrial application.

关键词： Enzymes Protein engineering Design strategies De novo design

HA/CuO/SrCO_(3)梯度复合涂层的制备及体外生物活性

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高等学校化学学报 2022年第2期43卷 147-155页

作者：赵梦阳黄紫洋福建师范大学化学与材料学院福州350007

在羟基磷灰石(HA)悬浮液中,以正丁醇为分散介质,三乙醇胺为乳化剂,成骨微量元素化合物CuO和SrCO_(3)作为添加剂,Ti片为基材,壳聚糖(CS)为造孔剂,依次通过区带电泳分布并在反向电场作用下电泳沉积,得到HA/CS/CuO/SrCO_(3)复合涂层,经700... 详细信息

在羟基磷灰石(HA)悬浮液中,以正丁醇为分散介质,三乙醇胺为乳化剂,成骨微量元素化合物CuO和SrCO_(3)作为添加剂,Ti片为基材,壳聚糖(CS)为造孔剂,依次通过区带电泳分布并在反向电场作用下电泳沉积,得到HA/CS/CuO/SrCO_(3)复合涂层,经700℃高温煅烧2 h后,制得HA/CuO/SrCO_(3)复合涂层.通过X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、场发射扫描电子显微镜(FESEM)、能量色散光谱仪(EDS)、劳埃德万能材料试验机、电化学工作站、模拟体液培养和抑菌实验等手段对复合涂层进行测试与表征.结果表明,Ca,Cu和Sr元素含量在HA/CuO/SrCO_(3)复合涂层的径向上均呈现梯度分布;复合涂层与钛基材的结合强度达33.0MPa;循环伏安(CV)曲线和Tafel极化曲线测试表明,复合涂层在N-2-羟乙基哌嗪-N′-2-乙磺酸(HEPES)模拟体液(H-SBF)中电化学性能稳定,耐腐蚀性较强;在H-SBF中培养24 d后,复合涂层表面完全碳磷灰石化;抑菌实验发现,复合涂层粉末对大肠杆菌和金黄色葡萄球菌的抑菌率分别为81.82%和71.86%.

关键词： HA/CuO/SrCO_(3)梯度复合涂层体外生物活性区带电泳分布电泳沉积

Clinical observation of Shenling Baizhu Powder combined with triamcinolone acetonide in treating macular edema induced by retinal vein occlusion

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Journal of Translational Neuroscience 2021年第3期6卷 30-36页

作者： Zhiqiang Wang Muchen Luo ziyang huang Wanyu Zhou Beijing University of Chinese Medicine Third Affiliated Hospital Beijing 100029China Department of Ophthalmology Xiyuan HospitalChina Academy of Chinese Medical SciencesBeijing 100091China

Objective:to observe the clinical effica-cy of Shenling Baizhu Powder(SLBZP)combined with a subconjunctival injection of triamcinolone acetonide(TA)in treating macular edema(ME)induced by retinal vein occlusion(RVO).Method:there were 62 patients(62 eyes)with ME induced by RVO that were selected and divided into two groups in accordance with the ran-dom number *** group had 31 *** one,the control group,was treated with a single subconjunc-tival injection of TA;group two,the observation group,was treated with a single subconjunctival injection of TA(20 mg/0.5 mL)per eye and one month of *** evaluate the clinical efficacy,both groups were checked(3×)with the best corrected-visual acuity(BCVA),cen-ter macular thickness(CMT),and intraocular pressure(IOP).The checks were before treatment,one month af-ter injection,and three months after ***:there were 26 eyes(83.87%)in the observation group,and 17 eyes(54.84%)in the control group in which the BCVA was significantly *** ME obviously de-creased in 27 eyes(87.10%)the observation group and in 19 eyes(61.29%)the control *** clinical effica-cy of the observation group was significantly better than that of the control group(P<0.05).Conclusion:as one method to treat ME induced by RVO,SLBZP combined with subconjunctival injection of TA is significantly more effective than a single subconjunctival injection of ***,the SLBZP had less *** on the above,this method deserves in-depth research.

关键词： Shenling Baizhu Powder(SLBZP) tiamcinolone acetonide(TA) retinal vein occlusion(RVO) macular edema(ME) injection