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23篇 您的检索式:作者名="Jiazhao"
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1Sisyphus effects in hydrogen electrochemistry on metal silicides enabled by silicene subunit edge显示文摘Nonmetal elements strictly govern the electrochemical performance of molybdenum compounds.Yet,the exact role played by nonmetals during electrocatalysis remains largely obscure.With intermetallic MoSi_2comprising silicene subunits,we present an unprecedented hydrogen evolution reaction(HER)behavior in aqueous alkaline solution.Under continuous operation,the HER activity of MoSi_2shows a more than one order of magnitude improvement in current density from 1.1 to 21.5 mA cm^(à2)at 0.4 V overpotential.Meanwhile,this activation behavior is highly reversible,such that voltage withdrawal leads to catalyst inactivation but another operation causes reactivation.Thus,the system shows dynamics strikingly analogous to the legendary Sisyphus’labor,which drops and recovers in a stepwise manner repeatedly,but never succeeds in reaching the top of the mountain.Isomorphic WSi_2behaves almost the same as MoSi_2,whereas other metal silicides with silicyne subunits,including CrSi_2and TaSi_2,do not exhibit any anomalous behavior.A thin amorphous shell of MoSi_2is observed after reaction,within which the Si remains partially oxidized while the oxidation state of Mo is basically unchanged.First-principles calculations further reveal that the adsorption of hydroxide ions on silicene subunit edges and the subsequent Si vacancy formation in MoSi_2jointly lead to the anomalous HER kinetics of the adjacent Mo active centers.This work demonstrates that the role of nonmetal varies dramatically with the electronic and crystallographic structures of silicides and that silicene structural subunit may serve as a promoter for boosting HER in alkaline media.Zechao Zhuang Yong Li Jiazhao Huang Zilan Li Kangning Zhao Yunlong Zhao Lin Xu Liang Zhou Lyudmila V. Moskaleva Liqiang Mai 2019Science Bulletin2019,64,9:12
2Solid-state electrolytes for solid-state lithium-sulfur batteries:Comparisons,advances and prospects显示文摘Compared with other secondary batteries,lithium-sulfur batteries(LSBs)have unparalleled advantages such as high energy density,low cost,etc.In liquid LSB systems,it is extremely easy to cause severe‘‘shuttle effecto and safety issues.Hence,the development of solid-state LSBs(SSLSBs)has been attracting much more attention.As the most essential part of the SSLSBs,the solid-state electrolyte(SSE)has received significant attention from researchers.In this review,we concentrate on discussing the core of SSLSBs,which is the SSE.Moreover,we also highlight the differences in the properties of the different SSEs,which are polymer-based electrolytes and ceramic-based electrolytes.In addition,the challenges and advances in different types of SSEs are also compared and described systematically.Furthermore,the prospects for new SSE systems and the design of effective SSE structures to achieve highperformance SSLSBs are also discussed.Thus,this review is expected to give readers a comprehensive and systematic understanding of SSEs for SSLSBs.Xin Liang Lulu Wang Xiaolong Wu Xuyong Feng Qiujie Wu Yi Sun Hongfa Xiang Jiazhao Wang 2022Journal of Energy Chemistry2022,31,10:2
3Dependence of UV-B-induced camptothecin production on nitrate reductase-mediated nitric oxide signaling in Camptotheca acuminata suspension cell cultures显示文摘Jiazhao Ruan Jinjie Zhang Mengya Li Yun Zhu Lina Sun Haihong Jin Hu Su Maojun Xu 2014Plant Cell, Tissue and Organ Culture (PCTOC)2014,,2:1
4Freestanding single-walled carbon nanotube/SnO2 anode paper for flexible lithium-ion batteries显示文摘Lukman Noerochim Wang Jiazhao Chou Shulei 0,,03:1
5Sulfur mesoporous carbon composites in conjunction with a novel ionic liquid electrolyte for lithium rechargeable batteries显示文摘Wang Jiazhao Chew S Y Ashraf S 2008Carbon2008,46,2:1
6Electrochemical performance of α-Fe 2 O 3 nanorods as anode material for lithium-ion cells显示文摘Hao Liu Guoxiu Wang Jinsoo Park Jiazhao Wang Huakun Liu Chao Zhang 2008Electrochimica Acta2008,,6:1
7Inhibition of immune checkpoints prevents injury-induced heterotopic ossification显示文摘Heterotopic ossification(HO),true bone formation in soft tissue,is closely associated with abnormal injury/immune responses.We hypothesized that a key underlying mechanism of HO might be injury-induced dysregulation of immune checkpoint proteins(ICs).We found that the earliest stages of HO are characterized by enhanced infiltration of polarized macrophages into sites of minor injuries in an animal model of HO.The non-specific immune suppressants,Rapamycin and Ebselen,prevented HO providing evidence of the central role of the immune responses.We examined the expression pattern of ICs and found that they are dysregulated in HO lesions.More importantly,loss of function of inhibitory ICs(including PD1,PD-L1,and CD152)markedly inhibited HO,whereas loss of function of stimulatory ICs(including CD40L and OX-40L)facilitated HO.These findings suggest that IC inhibitors may provide a therapeutic approach to prevent or limit the extent of HO.Chen Kan Jiazhao Yang Ding Na Yuanhong Xu Baixia Yang Haodong Zhao Huadong Lu Yuyun Li Keqin Zhang Tammy LMcGuire John AKessler Lixin Kan 2019Bone Research2019,7,4:1
8Optimized design and experiments of a rotary-extensive-type flowerpot seedling transplanting mechanism显示文摘To realize the mechanization of flowerpot seedling transplanting,a creative mechanism to transplant flowerpot seedlings was designed.The mechanism is based on noncircular gear in combination with a transplanting arm equipped with an extensive seedling pick-up device to transplant the flowerpot seedlings from the growing tray to the flowerpot,which in accordance with the transplanting agronomy requirements.The working principles of a theoretical model and kinematic characteristics of the transplanting mechanism were analyzed.The computer-aided analysis and optimization software based on Visual Basic 6.0 was developed and used to obtain a set of special trajectory and attitude parameters satisfying the transplanting operation requirements.The optimized parameters were used for virtual manufacturing and simulation testing of the transplanting mechanism.The virtual prototype testing results are consistent with the theoretical analysis,verifying the structural design validity and rationality.The high-speed photography was used in a bench test of the transplanting mechanism with“Salvia Splendens”pot seedlings as test samples.The trajectory and attitudes of the theoretical analysis,virtual test,and physical prototype test were essentially identical.The bench test results showed that the success rate was 91.67%for the seedling pick-up device penetrating into the root mass at 35 mm,thus,the quality of the extracting seedling was satisfactory.Daqing Yin Jiazhao Wang Shuo Zhang Nuoyi Zhang Maile Zhou 2019International Journal of Agricultural and Biological Engineering2019,12,6:1
9Enhanced reversible lithium storage in a nanosize silicon/graphene composite 显示文摘Chou Shulei Wang Jiazhao Choucair M 2010Electrochemistry Communications2010,12,2:1
10Highly reversible lithium storage in spheroidal carbon-coated silicon nano composites as anodes for lithium-ion batteries 显示文摘Ng See-How Wang Jiazhao David Wexler 2006Angew Chem2006,118,:1
11Sulfur-graphene composite for rechargeable lithiumbatteries显示文摘Wang Jiazhao Lu Lin Mohammad C 2011Journal of Power Sources2011,196,16:1
12Amorphous Carbon-coated Silicon Nanocomposites: A Low-temperature Synthesis Via Spray Pyrolysis and their Application as High-capacity Anodes for Lithium-ion Batteries显示文摘How Ng Jiazhao Wang David Wexler 2007The Journal of Physical Chemistry2007,111,29:1
13An investigation on electrochemical behavior of nanosize zinc sulfide electrode in lithium-ion cells 显示文摘Wang Jiazhao Wang Guoxiu Yang Li 2006J Solid State Electrochem2006,10,:1
14Electrochemical deposition of porous Co3O4 nanostructured thin film for lithium-ion battery显示文摘Chou Shulei Wang Jiazhao Liu Huakun 2008Journal of Power Sources2008,182,1:1
15Boron leaching:Creating vacancy-rich Ni for enhanced hydrogen evolution显示文摘Creating vacancy is often highly effective in enhancing the hydrogen evolution performance of transition metal-based catalysts.Vacancy-rich Ni nanosheets have been fabricated via topochemical formation of two-dimentional(2D)Ni_(2)B on graphene precursor followed by boron leaching.Anchored on graphene,a few atomic layered Ni_(2)B nanosheets are first obtained by reduction and annealing.Large number of atomic vacancies are then generated in the Ni_(2)B layer via leaching boron atoms.When used for hydrogen evolution reaction(HER),the vacancy-rich Ni/Ni(OH)_(2 )heterostructure nanosheets demonstrate remarkable performance with a low overpotential of 159 mV at a current density of 10 mA·cm^(−2) in alkaline solution,a dramatic improvement over 262 mV of its precursor.This enhancement is associated with the formation of vacancies which introduce more active sites for HER along Ni/Ni(OH)_(2) heterointerfaces.This work offers a facile and universal route to introduce vacancies and improve catalytic activity.Chao Han Weijie Li Jiazhao Wang Zhenguo Huang 2022Nano Research2022,15,3:1
16Electrodeposition of Mn O2nanowires on carbon nanotube paper as free-standing,flexible electrode for supercapacitors显示文摘CHOU Shulei WANG Jiazhao CHEW Sauyen 2008Electrochemistry Communications2008,10,11:1
173D printed porous titanium filled with mineralized UV-responsive chitosan hydrogel promotes cell proliferation and osteogenesis in vitro显示文摘The modification of 3D printed porous titanium(Ti),especially for the internal pore structure,is critical and has received more attention to promoting its osteogenesis for clinical use.Ultra-violet(UV)responsive chitosan(CSMA),as an injectable filling material,was firstly incorporated into porous Ti,and then CSMA was in-situ mineralized by carbon oxide(CO_(2))diffusion(CSMA/CaCO_(3)).Their physical-chemical and biological properties were investigated in vitro.CaCO_(3) crystals within CSMA hydrogels were successfully deposited into pores of porous Ti,which exhibited favorable biocompatibility.Ti implants filled with CSMA/CaCO_(3) promoted adhesion and proliferation of bone mesenchymal stem cells(BMSCs).Moreover,Ti implant filled CSMA/CaCO_(3) hydrogels could increase alkaline phosphatase(ALP)activities,up-regulate osteopontin(OPN)and osteocalcin(OCN)expression levels,and enhance extracellular mineralization.3D printed porous Ti filled with mineralized UV-responsive chitosan hydrogel could promote proliferation and osteogenesis of BMSCs,and have great potential for the modification of porous Ti implants in bone tissue engineering.Jiazhao Yang Fan Liu Changshun Zhou Hejie Li Gaolin Yang Shiyuan Fang In-Seop Lee Yi Liu Hao Bai Cen Chen 2023Journal of Materials Science & Technology2023,,11:0
18Deep Segmentation Feature-Based Radiomics Improves Recurrence Prediction of Hepatocellular Carcinoma显示文摘Objective and Impact Statement.This study developed and validated a deep semantic segmentation feature-based radiomics(DSFR)model based on preoperative contrast-enhanced computed tomography(CECT)combined with clinical information to predict early recurrence(ER)of single hepatocellular carcinoma(HCC)after curative resection.ER prediction is of great significance to the therapeutic decision-making and surveillance strategy of HCC.Introduction.ER prediction is important for HCC.However,it cannot currently be adequately determined.Methods.Totally,208 patients with single HCC after curative resection were retrospectively recruited into a model-development cohort(n=180)and an independent validation cohort(n=28).DSFR models based on different CT phases were developed.The optimal DSFR model was incorporated with clinical information to establish a DSFR-C model.An integrated nomogram based on the Cox regression was established.The DSFR signature was used to stratify high-and low-risk ER groups.Results.A portal phase-based DSFR model was selected as the optimal model(area under receiver operating characteristic curve(AUC):development cohort,0.740;validation cohort,0.717).The DSFR-C model achieved AUCs of 0.782 and 0.744 in the development and validation cohorts,respectively.In the development and validation cohorts,the integrated nomogram achieved C-index of 0.748 and 0.741 and time-dependent AUCs of 0.823 and 0.822,respectively,for recurrence-free survival(RFS)prediction.The RFS difference between the risk groups was statistically significant(P<0.0001 and P=0.045 in the development and validation cohorts,respectively).Conclusion.CECT-based DSFR can predict ER in single HCC after curative resection,and its combination with clinical information further improved the performance for ER prediction.Jifei Wang Dasheng Wu Meili Sun Zhenpeng Peng Yingyu Lin Hongxin Lin Jiazhao Chen Tingyu Long Zi-Ping Li Chuanmiao Xie Bingsheng Huang Shi-Ting Feng 2022Biomedical Engineering Frontiers2022,3,1:0
19Universal architecture and defect engineering dual strategy for hierarchical antimony phosphate composite toward fast and durable sodium storage显示文摘Antimony(Sb)-ba sed anode materials are feasible candidates for sodium-ion batteries(SIBs) due to their high theoretical specific capacity and excellent electrical conductivity.However,they still suffer from volume distortion,structural collapse,and ionic conduction interruption upon cycling.Herein,a hierarchical array-like nanofiber structure was designed to address these limitations by combining architecture engineering and anion tuning strategy,in which SbPO_(4-x) with oxygen vacancy nanosheet arrays are anchored on the surface of interwoven carbon nanofibers(SbPO_(4-x)@CNFs).In particular,bulky PO_(4)^(3-) anions mitigate the large volume distortion and generate Na_(3)PO_(4) with high ionic conductivity,collectively improving cyclic stability and ionic transport efficiency.The abundant oxygen vacancies substantially boost the intrinsic electronic conductivity of SbPO_4,further accelerating the reaction dynamics.In addition,hierarchical fibrous structures provide abundant active sites,construct efficient conducting networks,and enhance the electron/ion transport capacity.Benefiting from the advanced structural design,the SbPO_(4-x)@CNFs electrodes exhibit outstanding cycling stability(1000 cycles at 1.0 A g^(-1) with capacity decay of 0.05% per cycle) and rapid sodium storage performance(293.8 mA h g^(-1) at 5.0 A g^(-1)).Importantly,systematic in-/ex-situ techniques have revealed the 'multi-step conversion-alloying' reaction process and the 'battery-capacitor dual-mode' sodium-storage mechanism.This work provides valuable insights into the design of anode materials for advanced SIBs with elevated stability and superior rate performance.Jiawei Wu Gaoyu Wang Wei Zhang Lixiang Wang Jian Peng Qinghua Li Zhixin Liang Wenbo Fan Jiazhao Wang Shaoming Huang 2024Journal of Energy Chemistry2024,90,3:0
20Aspect-Level Sentiment Analysis Based on Deep Learning显示文摘In recent years,deep learning methods have developed rapidly and found application in many fields,including natural language processing.In the field of aspect-level sentiment analysis,deep learning methods can also greatly improve the performance of models.However,previous studies did not take into account the relationship between user feature extraction and contextual terms.To address this issue,we use data feature extraction and deep learning combined to develop an aspect-level sentiment analysis method.To be specific,we design user comment feature extraction(UCFE)to distill salient features from users’historical comments and transform them into representative user feature vectors.Then,the aspect-sentence graph convolutional neural network(ASGCN)is used to incorporate innovative techniques for calculating adjacency matrices;meanwhile,ASGCN emphasizes capturing nuanced semantics within relationships among aspect words and syntactic dependency types.Afterward,three embedding methods are devised to embed the user feature vector into the ASGCN model.The empirical validations verify the effectiveness of these models,consistently surpassing conventional benchmarks and reaffirming the indispensable role of deep learning in advancing sentiment analysis methodologies.Mengqi Zhang Jiazhao Chai Jianxiang Cao Jialing Ji Tong Yi 2024Computers, Materials & Continua2024,78,3:0
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