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Synchronously regulating d-and p-band centers of heterojunction photocatalysts by strain effect for solar energy conversion into H_(2)

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Journal of Materials Science & Technology 2024年第23期190卷 210-217页

作者： Yansong Wang shujuan jiang Chuanzhi Sun Shaoqing Song School of Materials Science&Chemical Engineering Ningbo UniversityNingbo 330013China School of New Energy Ningbo University of TechnologyNingbo 315336China School of Chemistry Chemical Engineering and Material ScienceShandong Normal UniversityJinan 250014China

Difficult dynamical transfer behaviors for charge carriers from generation locations to corresponding re-ductive and oxidative sites as well as subsequent their splitting H_(2)O with large reaction overpotential have not been solved yet,which seriously impedes the conversion efficiency of solar energy into H_(2)(STH).Herein,nanocage-like g-C_(3)N_(4)(C_(3)N_(4)NC)supported Ni2 P nanoparticles(Ni2 P/C_(3)N_(4)NC)have been constructed for solving the above dynamical bottleneck by synchronously regulating d-and p-band cen-ters using the strain ***-excited electrons and holes are separately propelled to reductive site(Ni2 P)and oxidative site(C_(3)N_(4)NC)within the localized electric field for∗-OH dehydrogenation and∗-O coupling in the photocatalytic H_(2)O splitting along with an STH of 2.52%at 65℃under AM 1.5 G irradi-ation,being explored by in situ diffuse reflectance infrared Fourier transform spectroscopy,in situ X-ray photoelectron spectroscopy and Hall effect *** research explores a unique insight to boost STH over heterojunction photocatalysts by synchronously regulating their d-and p-band centers.

关键词： Heterojunction photocatalyst p-band center d-band center H_(2)O splitting Photocatalytic H_(2)generation

Novel electromagnetism-like mechanism method for multiobjective optimization problems

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Journal of Systems Engineering and Electronics 2015年第1期26卷 182-189页

作者： Lixia Han shujuan jiang Shaojiang Lan School of Computer Science and Technology China University of Mining and Technology

As a new-style stochastic algorithm, the electromagnetism-like mechanism（EM） method gains more and more attention from many researchers in recent years. A novel model based on EM（NMEM） for multiobjective optimization problems is proposed, which regards the charge of all particles as the constraints in the current population and the measure of the uniformity of non-dominated solutions as the objective function. The charge of the particle is evaluated based on the dominated concept, and its magnitude determines the direction of a force between two particles. Numerical studies are carried out on six complex test functions and the experimental results demonstrate that the proposed NMEM algorithm is a very robust method for solving the multiobjective optimization problems.

关键词： electromagnetism-like mechanism(EM) method multi-objective optimization problem particle Pareto optimal solutions

Localized CdS homojunctions with optimal ratio of high and low index facets to dynamically boost H_(2)O splitting into H_(2)energy

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Journal of Materials Science & Technology 2024年第4期171卷 94-100页

作者： Xiaojun Wang Yiqi Zhang shujuan jiang Jiakun Su Shaoqing Song School of Materials Science&Chemical Engineering Ningbo UniversityNingbo 330013China School of New Energy Ningbo University of TechnologyNingbo 315336China Tchnology Center China Tobacco Jiangxi Industrial LLCNanchang 330096China

Localized CdS homojunctions with optimal ratio of high and low index facets are constructed to dy-namically boost H_(2)O splitting into H_(2)energy by hydrothermal method in combination with *** density functional theory,hall effect,and in situ diffuse reflectance infrared Fourier transform spec-troscopy,it is revealed that photo-irradiated e^(−)and h^(+)can be spatially separated and directionally trans-ferred to the reductive high-index facet{002}and oxidative low-index facet{110}of localized CdS homo-junction induced by Fermi level difference of both high and low index facets to dehydrogenate ^(∗)-OH and coupled ^(∗)-O intermediates for H_(2)and O_(2)yield,respectively,along with a solar conversion into hydrogen of 1.93%by AM 1.5 G irradiation at 65℃.The study work suggests a scientific perspective on the optimal ratio of high and low index facets to understand photo-generated charge carrier transfer dynamically and their photocatalytic principle for H_(2)O splitting reaction in kinetics.

关键词： Photocatalytic H_(2)evolution Homojunction Localized field Ratio of high low index facets In-situ DRIFTS

Cost-effective testing based fault localization with distance based test-suite reduction

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Science China(Information Sciences) 2017年第9期60卷 163-177页

作者： Xingya WANG shujuan jiang Pengfei GAO Xiaolin JU Rongcun WANG Yanmei ZHANG School of Computer Science and Technology China University of Mining and Technology School of Computer Science and Technology Nantong University Guangxi Key Laboratory of Trusted Software Guilin University of Electronic Technology

The aim of testing based fault localization(TBFL) involves improving the efficiency of program debugging by providing developers with a guide of ranked list of suspicious statements. However, collection of testing information of the whole original test-suite is excessively expensive or even infeasible for developers to conduct TBFL. Traditional test-suite reduction(TSR) techniques are utilized to reduce the size of testsuite. However, they entail a time-consuming process of whole testing information collection. In this study, the distance based test-suite reduction(DTSR) technique is proposed. As opposed to the whole testing information,the distances among the test cases are used to guide the process of test-suite reduction in DTSR. Hence, it is only necessary to collect the testing information for a portion of the test cases for TSR and TBFL. The investigation on the Siemens and SIR benchmarks reveals that DTSR can effectively reduce the size of the given test-suite as well as the time cost of TBFL. Additionally, the fault locating effectiveness of DTSR results is close to that when the whole test-suite is used.

关键词： program debugging fault localization test-suite reduction distance estimation category partition

A New Robust Watermarking Algorithm for Vector Data

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Wuhan University Journal of Natural Sciences 2010年第5期15卷 403-407页

作者： ZHANG Lei YAN Dashun jiang shujuan SHI Tingting College of Computer Science and Engineering Zhongkai University of Agriculture and Engineer Guangzhou 510225 Guangdong China School of Computer Science and Technology China University of Mining and Technology Xuzhou 221008 Jiangsu China

Because the existing vector data watermarking algorithm is insufficiently robust for compression and cropping,and has no sufficient control on map deformation,a new watermarking algorithm was proposed in this *** main features are：① it selected feature points and non-feature points from the sequence of Douglas,and then embedded watermarking points by wavelet transform,which is based on layer segmentation;② it enhanced the map deformation control ***,it increased the map graphic deformation control *** algorithm was applied to experimental data,and the test results showed that the algorithm had good robustness on graphics geometric transformation,the addition,deletion and cropping of points in graph ***,the graph distortion had been well controlled.

关键词： vector graphics Douglas Puck transform wavelet transform blind watermarking robust

Application of endoscopic nasobiliary cutting in the treatment of hilar cholangiocarcinoma

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Oncology and Translational Medicine 2021年第2期7卷 76-82页

作者： shujuan jiang Zhongyin Zhou Department of Gastroenterology Renmin Hospital of Wuhan UniversityWuhan 430060China

Objective The aim of the study was to study the clinical efficacy and prognosis of endoscopicallycutting the nasobiliary duct and leaving its residual segment as a biliary stent in the treatment of hilarcholangiocarcinoma (HC).Methods The clinical data of 55 patients with HC treated by endoscopic biliary drainage at theGastrointestinal Endoscopy Center of our hospital (Renmin Hospital of Wuhan University, China) fromAugust 2017 to August 2019 were retrospectively analyzed. According to different drainage schemes,patients were divided into the endoscopic nasobiliary cutting group (n = 26) and the endoscopic retrogradebiliary drainage (ERBD) group (n = 29). The postoperative liver function indexes, incidence of postoperativecomplications, median patency period of stents, and median survival time of patients were comparedbetween the two *** Liver function indexes (total bilirubin, direct bilirubin, alanine aminotransferase, aspartateaminotransferase, alkaline phosphatase, gamma-glutamyl transpeptidase) were significantly decreased in55 patients a week postoperaticely (P < 0.05), and decreases in liver function indexes in the endoscopicnasobiliary cutting group were more significant than those in the ERBD group (P < 0.05). The incidenceof biliary tract infection in the endoscopic nasobiliary cutting group was significantly lower than that in theERBD group (15.40% vs. 41.4%, P < 0.05). In the endoscopic nasobiliary cutting subgroups, there were 1and 3 cases of biliary tract infection in the gastric antrum cutting group (n = 21) and duodenal papilla cuttinggroup (n = 5), respectively, and 0 cases and 2 cases of displacement, respectively;there was a statisticallysignificant difference in terms of complications between the two subgroups (P < 0.05). The median patencyperiod (190 days) and median survival time (230 days) in the nasobiliary duct cutting group were higherthan those (169 days and 202 days) in the ERBD group, but there was no significant difference (P

关键词： hilar cholangiocarcinoma(HC) endoscopic nasobiliary drainage endoscopic nasobiliary cutting endoscopic retrograde biliary drainage(ERBD) biliary stent

Human cytomegalovirus miR-US5-1 inhibits viral replication by targeting Geminin mRNA

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Virologica Sinica 2017年第5期32卷 431-439页

作者： shujuan jiang Yujing Huang Ying Qi Rong He Zhongyang Liu Yanping Ma Xin Guo Yaozhong Shao Zhengrong Sun Qiang Ruan Virus Laboratory the Affiliated Shengjing Hospital China Medical University Shenyang 110122 China Clinical Genetics the Affiliated Shengjing Hospital China Medical University Shenyang 110122 China

Viruses commonly create favorable cellular conditions for their survival through multiple mechanisms. Micro RNAs(mi RNAs), which function as post-transcriptional regulators, are utilized by human cytomegalovirus(HCMV) in its infection and pathogenesis. In the present study, the DNA replication inhibitor Geminin(GMNN) was identified to be a direct target of hcmv-mi R-US5-1. Overexpression of hcmv-mi R-US5-1 could block the accumulation of GMNN during HCMV infection, and the decrease of GMNN expression caused by hcmv-mi R-US5-1 or GMNN specific si RNA reduced HCMV DNA copies in U373 cells. Meanwhile, ectopic expression of hcmv-mi R-US5-1 and consequent lower expression of GMNN influenced host cell cycle and proliferation. These results imply that hcmv-mi R-US5-1 may affect viral replication and host cellular environment by regulating expression kinetics of GMNN during HCMV infection.

关键词： Human cytomegalovirus(HCMV) hcmv-mi R-US5-1 Geminin(GMNN) DNA replication cell cycle

Lattice vibrational modes and phonon thermal conductivity of singlelayer GaGeTe

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Journal of Materiomics 2020年第4期6卷 723-728页

作者： Jingyu Li Peng-Fei Liu Chi Zhang Xiaobo Shi shujuan jiang Weizhen Chen Huabing Yin Bao-Tian Wang Institute for Computational Materials Science School of Physics and ElectronicsInternational Joint Research Laboratory of New Energy Materials and Devices of Henan ProvinceHenan UniversityKaifeng 475004China College of Electrical Engineering Henan University of TechnologyZhengzhou450001China Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China Spallation Neutron Source Science Center Dongguan523803China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuanShanxi030006China

Exploring the vibrational properties of experimental or theoretical finding of new phase twodimensional(2D)materials is one key to expand their promising *** GaGeTe monolayer with high carrier mobility,tunable band structure,and low cleavage energy attracts rapidly growing interests in ***,their vibrational modes and phonon properties are not *** on first-principles calculations within the framework of density functional perturbation theory,we systematically study the lattice vibrational modes as well as phonon thermal conductivity of single-layer GaGeTe,which could be exfoliated from the experimentally synthesized GaGeTe *** find that the frequencies and intensities of A1g and Eg Raman modes,contributing to the main peaks in Raman spectra of monolayer GaGeTe,show distinct responses to different external *** calculated lattice thermal conductivity of GaGeTe is about 58 Wm-1 K1,which is comparable to that of MoS2(around 52 Wm1K1)and two orders of magnitude lower than that of graphene(2000 Wm1K1)at room *** is mainly due to the partial couple for acoustic branches and low frequency optic phonon branches,moderate group velocity,strong anharmonic ZA phonon ***,atom substitution at tellurium could be as an effective strategy to further decrease lattice thermal *** findings fill in the gap about the thermal transport properties of GaGeTe monolayer and trigger for further experimental verification of the predicted properties.

关键词： First-principles calculations Phonon thermal conductivity Vibrational modes Raman modes

Some Observations on The *** Central Asia Security Strategy Planning

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Peace 2013年第3期 51-59页

作者： De Quanying jiang shujuan Law School of Xinjiang Financial University

The United States is shaping a Central Asian Security Strategy Planning with priority on economics and trade. In area of economics and trade, it pushes on the U.S.-Central Asian trade and investment framework agreement, focusing on developing trade in greater Central Asian region so as to encourage the regional countries to lower trade barriers and to advance reconfiguration of the regional countries and Afghanistan neighboring areas. In area of energy, it builds a greater Central Asian transportation network composed of highway, railway, natural gas-pipeline and electricity grid line to boom the regional trade and economy. In area of anti-terrorism, it strengthens security cooperation with the Central Asian countries. Meanwhile, it also pushes forward a multi-lateral security mechanism, increases economic aid, and promotes regional cooperation so as to achieve the regional lasting peace.

关键词： Some Observations on The U.S.Greater Central Asia Security Strategy Planning Security Asia OSCE