检索结果-南通市图书馆

Z-scheme Bi_(4)O_(5)Br_(2)/NH_(2)-MIL-125(Ti)heterojunctions enable exceptional visible photocatalytic degradation of organic pollutant

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第7期43卷 3161-3172页

作者： Feng Huang Muhammad Humayun Gang Li Ting-Ting Fan Wen-Lin Wang Yu-Lin Cao Anton Nikiforov chun-Dong Wang Jing Wang key Laboratory of Analytical science and Technology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationState Key Laboratory of New Pharmaceutical Preparations and ExcipientsCollege of Chemistry and Materials ScienceHebei UniversityBaoding071002China Energy Water and Environment LabCollege of Humanities and SciencesPrince Sultan University11586 RiyadhSaudi Arabia Baoding Green Yijia Environmental Protection Technology Ltd Baoding 071051China Physics Laboratory Industrial Training CenterShenzhen Polytechnic UniversityShenzhen 518055China Department of Applied Physics Ghent University9000 GhentBelgium school of Integrated Circuits Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China

One key strategy to enhance photocatalytic performance is to improve the transfer and separation efficiency of photogenerated carriers by building optimized ***,novel Bi_(4)O_5Br_(2)/NH_(2)-MIL-125(Ti)Z-scheme heterojunctions are fabricated and used as photocatalysts for organic pollutant *** NH_(2)-MIL-125(Ti)nanosheets are exfoliated via a self-developed alkali solution stripping approach and then uniformly decorated on Bi_(4)O_(5)Br_(2).The as-prepared Bi_(4)O_(5)Br_(2)/NH_(2)-MIL-125(Ti)presents more than 90%degradation of various pollutants,outperforming the counterpart individual *** various characterization results suggest that the enhanced degradation rate is due to the more intimate face-to-face interfacial contact of the lamellar Z-scheme heterojunction materials,in which the migration path of carriers from the material's interior to the surface can be reduced,in turn enhancing migration efficiency and separation capability significantly.A possible photocatalytic reaction mechanism is proposed based on the photoelectric behaviors,radical trapping experiments and liquid chromatography mass spectrometry *** work promotes the development of new photocatalytic materials for heterojunctions with face-to-face interfacial contacts,as well as the effective purification of wastewater in environmental remediation.

关键词： Z-scheme heterojunctions Photocatalysis Alkaline solution stripping Bi_(4)O_(5)Br_(2) NH_(2)-MIL-125(Ti)

Electronic structure regulation and built-in electric field synergistically strengthen photocatalytic nitrogen fixation performance on Ti-BiOBr/TiO_(2)heterostructure

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第3期43卷 1125-1138页

作者： Ru-Qi Li Yu-Jie Bian chun-Ming Yang Li Guo Tao-Xia Ma Chuan-Tao Wang Feng Fu Dan-Jun Wang College of Chemistry and Chemical Engineering Yan’an UniversityYan’an Key Laboratory of Green Catalysis and Quality Improvement and Utilization of Low Rank CoalYan’an716000China

At present,industrial synthetic ammonia was still obtained through the Hubble-Bosch process,with large energy *** is a research hotspot to realize green synthetic ammonia by using solar *** difficulty of photocatalytic ammonia synthesis was that the photo-excited electrons have not enough energy to active N≡*** this study,Ti was doped into BiOBr by one-step hydrothermal method,which was oxidized into TiO_(2)when the doping amount reaches the maximum,in situ forming Ti_(0.31)B_(0.69)OB/TiO_(2)*** from the synergistic effect of Ti doping and s-scheme heterojunction,the synthetic ammonia efficiency of Ti_(0.31)B_(0.69)OB/TiO_(2)-11.96 reached 1.643 mmol·g_(cat)^(-1)at mild conditions and without hole scavenger for up to 7 h,the efficiency of synthetic ammonia is 115 times,10.5 times and 3.3 times of that of BiOBr,Ti_(0.31)B_(0.69)OB and TiO_(2),***,DFT calculation confirms that Ti doping accurately refine the electronic structure of BiOBr,facilitate nitrogen adsorption activation and reduce hydrogenation reaction energy barrier,thus accelerating the reaction kinetics of photocatalytic nitrogen reduction(NRR),Meanwhile,constructing s-scheme heterojunction boosts the separation and transfer of photogenerated electron-hole pairs,improving the reduction ability of electrons in the conduction band of TiO_(2)and the oxidation ability of holes in the valence band of Ti_(0.31)B_(0.69)OB.

关键词： s-scheme heterostructure Electronic structure regulation Built-in electric field synergistical stren4gthening Photocatalytic nitrogen fixation

Remote sensing of air pollution incorporating integrated-path differential-absorption and coherent-Doppler lidar

在线全文

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2024年第1期31卷 594-601页

作者： Ze-hou Yang Yong Chen chun-li Chen Yong-ke Zhang Ji-hui Dong Tao Peng Xiao-feng Li Ding-fu Zhou school of Physics Beijing Institute of TechnologyBeijing 100081China southwest Institute of Technical Physics Chengdu 610041SichuanChina school of Optics and Photonics Beijing Institute of TechnologyBeijing 100081China

An innovative complex lidar system deployed on an airborne rotorcraft platform for remote sensing of atmospheric pollution is proposed and *** system incorporates integrated-path differential absorption lidar(DIAL) and coherent-doppler lidar(CDL) techniques using a dual tunable TEA CO_(2)laser in the 9—11 μm band and a 1.55 μm fiber *** combining the principles of differential absorption detection and pulsed coherent detection,the system enables agile and remote sensing of atmospheric *** static tests validate the system’s real-time detection capabilities,including the measurement of concentration-path-length product(CL),front distance,and path wind speed of air pollution plumes over long distances exceeding 4 *** experiments is conducted with the *** of the pollutant concentration and the wind field is carried out in an approximately 1 km slant range over scanning angle ranges from 45°to 65°,with a radial resolution of 30 m and10 *** test results demonstrate the system’s ability to spatially map atmospheric pollution plumes and predict their motion and dispersion patterns,thereby ensuring the protection of public safety.

关键词： Differential absorption LIDAR Coherent Doppler lidar Remoting sensing Atmospheric pollution

Icariin ameliorates viral myocarditis by inhibiting TLR4-mediated ferroptosis

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2024年第3期14卷 106-114,I0002-I0005页

作者： Wei Luo Yi Lu Jun-Hua Deng Peng Liu Yan Huang Wan-Xi Liu chun-Li Huang Laboratory of the Atherosclerosis and Ischemic Cardiovascular Diseases Department of CardiologyAffiliated Hospital of Youjiang Medical University for NationalitiesYoujiang Medical University for NationalitiesBaiseGuangxi 533000China Department of Critical Care Medicine Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxi 533000China Department of Respiratory and Critical Care Medicine Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxi 533000China Postgraduate school of Youjiang Medical University for Nationalities BaiseGuangxi 533000China Department of Neonatology Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxi 533000China Department of Nephrology People’s Hospital of PubeiQinzhouGuangxi 535300China Urban Community Health service Center of Youjiang District BaiseGuangxi 533000China

Objective:To explore the mechanism by which icariin alleviates viral ***:CVB3-induced cardiomyocytes were used as an in vitro model of viral myocarditis to assess the effects of icariin treatment on cell viability,inflammation,and ***,the effects of icariin on ferroptosis and TLR4 signaling were *** AC16 cells were transfected with TLR4 overexpression plasmids,the role of TLR4 in mediating the regulatory effect of icariin in viral myocarditis was ***:Icariin significantly elevated cell viability and reduced inflammatory factors TNF-α,IL-1β,IL-6,and *** cytometry revealed that icariin decreased apoptosis rate,and the protein expression of Bax and cleaved caspase 3 and 9 in CVB3-induced ***,it suppressed ferroptosis including lipid peroxidation and ferrous ion,as well as the TLR4 ***,TLR4 overexpression abrogated the modulatory effects of ***:Icariin mitigates CVB3-induced myocardial injury by inhibiting TLR4-mediated *** animal study is needed to verify its efficacy.

关键词： Viral myocarditis CVB3 TLR4 Ferroptosis Icariin

Computational screening of Pt1@Ti_(3)C_(2)T_(2)(T=O,s)MXene Catalysts for Water-Gas shift Reaction

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Precision Chemistry 2024年第2期2卷 70-80页

作者： Yang Meng Haiyan Wang Jin-Xia Liang chun Zhu Jun Li school of Chemistry and Chemical Engineering Guizhou UniversityGuiyang 550025China Department of Chemistry and Guangdong Provincial key Laboratory of Catalytic Chemistry Southern University of Science and TechnologyShenzhen 518055China Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education Tsinghua UniversityBeijing 100084China

single-atom catalysts(sACs)provide an oppor-tunity to elucidate the catalytic mechanism of complex reactions in heterogeneous *** low-temperature water-gas shift(WGs)reaction is an important industrial technology to obtain high purity ***,we study the catalytic activity of Pt1@Ti_(3)C_(2)T_(2)(T=O,s)sACs,where one subsurface Ti atom with three T vacancies in the functionalized Ti_(3)C_(2)T_(2)(T=O,s)MXene is substituted by one Pt atom,for the low-temperature show that Pt1@Ti_(3)C_(2)T_(2)provides an excellent platform for the WGs reaction by its bowl-shaped vacancy derived from the Pt1 single atom and three T defects surrounding ***,Pt1@Ti_(3)C_(2)s_(2)sAC has higher catalytic performance for the WGs reaction,due to the weaker electronegativity of the s atom than the O atom,which significantly reduces the energy barrier of H*migration in the WGs reaction,which is often the rate-determining *** the most favorable redox mechanism of the WGs reaction on Pt1@Ti_(3)C_(2)s_(2),the rate-determining step is the dissociation of OH*into O*and H*with the energy barrier as low as 1.12 *** results demonstrate that Pt1@Ti_(3)C_(2)s_(2)is promising in the application of MXenes for low-temperature WGs reactions.

关键词： single-atom catalyst(sAC) density functional theory(DFT) water gas shift(WGs)reaction defective MXene thermocatalysis

Design of bionic water jet thruster with double-chamber driven by electromagnetic force

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Mechanical system Dynamics 2024年第3期4卷 292-302页

作者： Chong Cao Yasong Zhang Chengchun Zhang chun shen Wen Cheng Zhenjiang Wei Zhengyang Wu Luquan Ren key Laboratory of Bionic Engineering(Ministry of Education) Jilin UniversityChangchunChina Weihai Junming Power Technology Co.Ltd. WeihaiChina

In response to the limitations of the single-chamber water jet thruster used in underwater vehicles mimicked by natural cephalopods,a novel approach involving a double-chamber water jet thruster has been *** thruster utilizes electromagnetic force to manipulate the diaphragm,thereby altering the volume of the upper and lower chambers to achieve water jet *** investigations were conducted to determine the tensile length-force characteristics of the diaphragm made of ***,key parameters of essential propulsion components,such as solenoid coils,electromagnets,and currents,were established based on the tensile length-force curve,and the propulsion capabilities of the system were evaluated through theoretical *** assessments indicate that the system does not produce reverse thrust regardless of whether the coil moves up or *** experimental results demonstrate that the maximum peak propulsion force generated by the dual-chamber water jet thruster within a 3-s cycle is 0.253N.

关键词： water jet thruster diaphragm electromagnetic force

High-Temperature superconductivity in La_(3)Ni_(2)O_(7)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2024年第1期41卷 85-91页

作者：蒋坤汪自强张富春 Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing 100190China school of Physical sciences University of Chinese Academy of SciencesBeijing 100190China Department of Physics Boston CollegeChestnut HillMA 02467USA kavli Institute of Theoretical sciences University of Chinese Academy of SciencesBeijing 100190China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

Motivated by the recent discovery of high-temperature superconductivity in bilayer La_(3)Ni_(2)O_(7) under pressure,we study its electronic properties and superconductivity due to strong electron *** the inversion symmetry,we decouple the low-energy electronic structure into block-diagonal symmetric and antisymmetric *** is found that the antisymmetric sector can be reduced to a one-band system near half filling,while the symmetric bands occupied by about two electrons are heavily overdoped *** the strong coupling mean field theory,we obtain strong superconducting pairing with B_(1g)symmetry in the antisymmetric *** propose that due to the spin-orbital exchange coupling between the two sectors,B_(1g)pairing is induced in the symmetric bands,which in turn boosts the pairing gap in the antisymmetric band and enhances the high-temperature superconductivity with a congruent d-wave symmetry in pressurized La_(3)Ni_(2)O_(7).

关键词： symmetry superconductivity symmetric

Identification of male schizophrenia patients using brain morphology based on machine learning algorithms

在线全文

学校读者我要写书评

暂无评论

World Journal of Psychiatry 2024年第6期14卷 804-811页

作者： Tao Yu Wen-Zhi Pei chun-Yuan Xu Chen-Chen Deng Xu-Lai Zhang Department of Clinical Nutrition Hefei Fourth People’s HospitalHefei 230032Anhui ProvinceChina Department of Psychiatry Hefei Fourth People’s HospitalHefei 230032Anhui ProvinceChina Department of Gynaecology Anhui Maternal and Child Health HospitalHefei 230032Anhui ProvinceChina

BACkGROUND schizophrenia is a severe psychiatric disease,and its prevalence is ***,diagnosis of early-stage schizophrenia is still considered a challenging *** To employ brain morphological features and machine learning method to differentiate male individuals with schizophrenia from healthy *** The least absolute shrinkage and selection operator and t tests were applied to select important features from structural magnetic resonance images as input features for *** commonly used machine learning algorithms,the general linear model,random forest(RF),k-nearest neighbors,and support vector machine algorithms,were used to develop the classification *** performance of the classification models was evaluated according to the area under the receiver operating characteristic curve(AUC).REsULTs A total of 8 important features with significant differences between groups were considered as input features for the establishment of classification models based on the four machine learning *** to other machine learning algorithms,RF yielded better performance in the discrimination of male schizophrenic individuals from healthy controls,with an AUC of *** Our research suggests that brain morphological features can be used to improve the early diagnosis of schizophrenia in male patients.

关键词： schizophrenia Machine learning Classification structure Magnetic Resonance imaging

Brain abscess from oral microbiota approached by metagenomic next-generation sequencing: A case report and review of literature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第3期12卷 616-622页

作者： Xue-Min Zhu chun-Xia Dong Lei Xie Hao-Xin Liu Huai-Qiang Hu school of Clinical Medicine Weifang Medical UniversityWeifang 261053Shandong ProvinceChina Department of Neurology the 960th Hospital of People′s Liberation ArmyJinan 250031Shandong ProvinceChina

BACkGROUND Brain abscess is a serious and potentially fatal disease caused primarily by microbial *** progress has been made in the diagnosis and treatment of brain abscesses,the diagnostic timeliness of pathogens needs to be *** sUMMARY We report the case of a 54-year-old male with a brain abscess caused by oral *** patient recovered well after receiving a combination of metagenomic next-generation sequencing(mNGs)-assisted guided medication and *** Therefore,mNGs may be widely applied to identify the pathogenic microor-ganisms of brain abscesses and guide precision medicine.

关键词： Brain abscess Metagenomic next-generation sequencing Periodontitis Oral bacteria Precision medicine Case report