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High-Performance Inverted Perovskite Solar Cells with Sol-Gel-Processed Sliver-Doped NiO_(x)Hole Transporting Layer

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Energy & Environmental Materials 2024年第4期7卷 205-214页

作者： Haibin Wang Zhiyin qin Xinjian Li Chun Zhao chao Liang School of Advanced Technology Xi’an Jiaotong-Liverpool UniversityRenai RoadSuzhou 215123China Department of Electrical Engineering and Electronics University of LiverpoolLiverpool L693GJUK School of humanities and Social Sciences Xi’an Jiaotong-Liverpool UniversityRenai RoadSuzhou 215123China Key Laboratory of Materials Physics of Ministry of Education School of Physics and MicroelectronicsZhengzhou UniversityDaxue Road 75Zhengzhou 450052China MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of PhysicsNational Innovation Platform(Center)for Industry-Education Integration of Energy Storage TechnologyXi’an Jiaotong UniversityXi’an 710049China

Nickel oxide(NiO_(x))has been established as a highly efficient and stable holetransporting layer(HTL)in perovskite solar cells(PSCs).However,existing deposition methods for NiO_(x)have been restricted by high-vacuum processes and fail to address the energy level mismatch at the NiO_(x)/perovskite interface,which has impeded the development of ***,we explored the application of NiO_(x)as a hybrid HTL through a sol-gel process,where a NiO_(x)film was pre-doped with Ag ions,forming a p/p^(+)homojunction in the NiO_(x)-based inverted *** innovative approach offers two synergistic advantages,including the enlargement of the built-in electric field for facilitating charge separation,optimizing energy level alignment,and charge transfer efficiency at the interface between the perovskite and *** this hybrid HTL featuring the p/p^(+)homojunction in the inverted PSCs resulted in a high-power conversion efficiency(PCE)of up to 19.25%,significantly narrowing the efficiency gap compared to traditional n-i-p ***,this innovative strategy for the HTL enhanced the environmental stability to 30 days,maintaining 90%of the initial efficiency.

关键词： Ag-NiO_(x)/NiO_(x) hole transporting layer inverted perovskite solar cells

Covalent organic frameworks functionalized carbon fiber paper for the capture and detection of hydroxyl radical in the atmosphere

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Chinese Chemical Letters 2020年第9期31卷 2495-2498页

作者： Zhiling huang qin Xu Xiaoya hu School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Guangling College Yangzhou UniversityYangzhou 225002China

Developing a fast,sensitive and convenient method for the detection of hydroxyl radicals(·OH) in the atmosphere could help us know the precursor levels of atmospheric species and control air *** this work,the carbon fiber paper(CFP) functionalizing with a kind of covalent organic frameworks(COFs),formed from 1,3,5-triformylphloroglucinol(Tp) and benzidine(BD)(COF(TpBD)),was firstly used a new platform for ·OH trapping and *** COF(TpBD) modified CFP was acted as a filter to impregnate salicylic acid(SA) and a detector to detect 2,5-dihydroxybenzoic acid(2,5-DHBA) which was produced from the reaction between the impregnated SA and ’OH in the *** method provided a linearity for 2,5-DHBA from 5.0×10^-14 mol/L 1.0×10^-9 mol/L with a detection limit of 6.9×10^-15 mol/L,which is corresponding to the amount of ·OH from 3.0×10^7 to 6.0×10^11 molecules/cm3 with the detection limit of 4.1×10^6 molecules/*** COF(TpBD)-CFP platform has been successfully applied for the detection of ·OH concentration under different conditions of Yangzhou when the sampling time was shortened to 30 *** work has provided a new method for atmospheric·OH detection with excellent sensitivity,simplicity,and high speed.

关键词： Covalent organic frameworks Hydroxyl radical Electrochemical Detection

Fracture mechanism of inclusions in thick plate center under tensile loading

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Journal of Iron and Steel Research International 2024年第5期31卷 1196-1209页

作者： Lei hu Li-qin Zhang Feng hu Guo-hong Zhang Kuan Zheng Collaborative Innovation Center for Advanced Steels Wuhan University of Science and TechnologyWuhan430081HubeiChina Department of Applied Physics Wuhan University of Science and TechnologyWuhan430081HubeiChina Analysis and Testing Center Wuhan University of Science and TechnologyWuhan430081HubeiChina

Segregation of solute atoms in the center of thick plates of the tempered steel can cause an inhomogeneous structural transformation and generate micron-sized inclusions,which leads to lamellar tearing of thick plate and decreases the plasticity and *** formation and fragmentation mechanisms of micron-sized inclusions,like MnS and(Nb,Ti)C,in the center of thick plates were investigated by using thermodynamic calculations,finite element simulations,and electron backscatter diffraction characterization *** results show that micron-sized inclusions nucleate and grow in the liquid phase,and under tensile loading,they exhibit three fragmentation *** local stress during the fragmentation of inclusions is lower than the critical fracture stress of adjacent grains,and phase boundaries can effectively impede crack propagation into the *** existence of a low proportion of high-angle grain boundaries(58.1%)and high Kernel average misorientation value(0.534°)in the segregation band promotes inclusions fragmentation and crack *** difference in crack initiation and propagation direction caused by the morphology of inclusions and physical properties,as well as different matrix arrest abilities,is the main reasons for the diversity of inclusion fragmentation.

关键词： Thick plate Inclusion Finite element simulation Critical fracture stress Fracture mechanism

Sleep Disturbance: An Early Sign of Alzheimer’s Disease

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Neuroscience Bulletin 2020年第4期36卷 449-451页

作者： chao He Zhian hu Chenggang Jiang Department of Physiology Institute of Brain and IntelligenceThird Military Medical UniversityChongqing 400038China Department of Medical Psychology Chongqing Health Center for Women and ChildrenChongqing 400021China Department of Sleep and Psychology Daping HospitalThird Military Medical UniversityChongqing 400042China

Alzheimer's disease(AD)is a progressive neurodegenerative disorder associated with cognitive impairment in older *** accumulation of insoluble forms of amyloid-β(Aβ)in plaques in extracellular spaces and the aggregation of hyperphosphorylated microtubule-associated protein tau in neurofibrillary tangles in neurons are considered to be central pathological features of A D[1,2].

关键词： Alzheimer Aβ tau

Equivalent point estimation for small target groups tracking based on maximum group likelihood estimation

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Science China(Information Sciences) 2020年第8期63卷 260-262页

作者： chao ZHOU Rui WANG Cheng hu Radar Research Laboratory School of Information and ElectronicsBeijing Institute of Technology Key Laboratory of Electronic and Information Technology in Satellite Navigation Ministry of Education

Dear editor,Small target groups (STG), such as insect/bird [1]flocks and drone groups [2], have become new threats to civil aviation and urban security [3].With the advantages of long range and alltime/all-weather operation capability, radar is one of the most suitable technologies for STG detection and tracking [4, 5]. However, because of the special group motion characteristics (orderly as a whole and flexibly as individuals), tradi-

关键词： group tracking equivalent point maximum likelihood estimation structure information dynamic countour

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World Journal of Emergency Medicine 2022年第6期13卷 425-432页

作者： Hai hu Ni Yao Xiao-qin Lai Emergency Management Office of West China Hospital Sichuan UniversityChengdu 610041China China International Emergency Medical Team Chengdu 610041China Sichuan University’s Emergency Medical Rescue Base Chengdu 610041China Department of Critical Care Medicine West China HospitalSichuan UniversityChengdu 610041China Day Surgery Center West China HospitalSichuan UniversityChengdu 610041China West China School of Nursing Sichuan UniversityChengdu 610041China

BACKGROUND:There is limited evidence for emergency physicians and emergency trauma surgeons regarding the determinants of early and rapid assessment of older adult in-hospital mortality due to *** study explored factors related to the early and rapid assessment of the mortality among older adult earthquake trauma patients(OAETPs)and created a screening ***:Data on 7,308 OAETPs from the West China Earthquake Patients Database were analyzed *** 35 variables that can be obtained rapidly on arrival at the hospital were *** absolute shrinkage and selection operator(LASSO)regression analysis was ***,the nomogram for assessing the mortality of OAETPs was ***:We identified 10 independent mortality-related factors that contributed to the in-hospital mortality of *** 10 factors included age(odds ratio[OR]=1.061,95%confidence interval[CI]:1.031-1.090),dementia(OR=5.146,95%CI:1.169-17.856),coronary heart disease(CHD;OR=23.441,95%CI:4.799-83.927),malignant tumor(OR=8.497,95%CI:3.583-17.967),deep vein thrombosis(DVT;OR=7.110,95%CI:1.369-27.168),chronic kidney disease(CKD;OR=11.783,95%CI:5.419-24.407),pulse rate(PR;OR=1.036,95%CI:1.022-1.048),mean artery pressure(MAP;OR=0.960,95%CI:0.945-0.975),Glasgow Coma Scale(GCS;OR=0.864,95%CI:0.760-0.972),and Triage Revised Trauma Score(T-RTS,OR=0.485,95%CI:0.351-0.696).CONCLUSION:The 10 mortality-related factors could be quickly obtained on hospital arrival and should be the focal point of future earthquake response strategies regarding hospitalized older adults with trauma.A nomogram was constructed based on the factors for screening OAETPs with a higher risk of in-hospital mortality.

关键词： Trauma Mortality Earthquakes Elderly patients

Effect of calcium content on inclusions during the ladle furnace refining process of AISI 321 stainless steel

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International Journal of Minerals,Metallurgy and Materials 2020年第11期27卷 1499-1507页

作者： chao Pan Xiao-jun hu Jian-chao Zheng Ping Lin Kuo-chih Chou State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China School of Metallurgy Northeastern UniversityShenyang 110819China Ruipu Technology Group Co. Ltd.Qingtian 323903China

The effect of three heat processes with different calcium contents on the evolution of inclusions during the ladle furnace refining process of AISI 321 stainless steel was *** size,morphology,and composition of the inclusions were analyzed by scanning electron microscopy and energy-dispersive X-ray *** the addition of aluminum and titanium,the primary oxide in the AISI 321 stainless steel was an AbOs—MgO—TiOx complex oxide,in which the mass ratio of AbOs/MgO was highly consistent with spinel(MgO・AbO3).After calcium treatment,the calcium content in the oxide increased *** calculations show that when the Ti content was 0.2wt%,the Al and Ca contents were less than 0.10wt%and 0.0005wt%,respectively,which was beneficial for the formation of liquid inclusions in molten ***,the modification mechanism of calcium on TiN-wrapped oxides in combination with temperature changes was discussed.

关键词： inclusions stainless steel calcium treatment thermodynamic calculation

LR-RRA-CCA secure functional encryption for randomized functionalities from trapdoor HPS and LAF

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Science China(Information Sciences) 2018年第5期61卷 291-305页

作者： huige WANG Kefei CHEN Baodong qin Ziyuan hu Department of Network Engineering Anhui Science and Technology University Department of Computer Science and Engineering Shanghai Jiao Tong University Department of Mathematics Hangzhou Normal University National Engineering Laboratory for Wireless Security Xi'an University of Posts and Telecommunications State Key Laboratory of Cryptology

Original public-key encryption is viewed as a tool to encrypt point-to-point *** data is aimed at a particular user,where a sender encrypts a message x under a specified public key P *** this case,only the owner of the(unique)secret key corresponding to P K can decrypt the resulting ciphertext to recover the message ***,on some occasions,encryption is necessary to implement more fine-grained control of the encrypted *** example,the sender

关键词： LAF CCA RRA

A MESH-FREE ALGORITHM FOR DYNAMIC IMPACT ANALYSIS OF HYPERELASTICITY

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Acta Mechanica Solida Sinica 2013年第4期26卷 362-372页

作者： De’an hu Zhanhua Sun chao Liang Xu Han State Key Laboratory of Advanced Design and Manufacture for Vehicle Body Hunan University

A mesh-free method based on local Petrov-Galerkin formulation is presented to solve dynamic impact problems of hyperelastic *** the present method,a simple Heaviside test function is chosen for simplifying domain *** function is constructed by using a radial basis function （RBF） coupled with a polynomial basis function,in which the shape function possesses the kronecker delta function ***,additional treatment is not required for imposing essential boundary *** equations of impact problems are established and solved node by node by using an explicit time integration algorithm in a local domain,which is very similar to that of the collocation method except that numerical integration can be implemented over local domain in the present *** results for several examples show that the present method performs well in dealing with the dynamic impact problem of hyperelastic material.

关键词： mesh-free method dynamic impact problem hyperelasticity explicit algorithm