检索结果-南通市图书馆

Protection and control of Modern Power Systems 2021年第1期6卷 89-108页

作者： c h.naga sai kalyan G.Sambasiva Rao EEE Department Acharya Nagarjuna UniversityGunturA.P.India EEE Department RVR&JC College of EngineeringGunturA.P.India

In this paper,the impact of communication time delays(cTDs)on combined load frequency control(LFc)and automatic voltage regulation(AVR)of a multi-area system with hybrid generation units is *** reveals that cTDs have significant effect on system performance.A classical PID controller is employed as a secondary regulator and its parametric gains are optimized with a differential evolution-artificial electric field algorithm(DE-AEFA).The superior performance of the presented algorithm is established by comparing with various optimization algorithms reported in the *** investigation is further extended to integration of redox flow batteries(RFBs)and interline power flow controller(IPFc)with *** reveals that IPFc and RFBs coordinated control enhances system dynamic ***,the robustness of the proposed control methodology is validated by sensitivity analysis during wide variations of system parameters and load.

关键词： combined LFc-AVR communication time delays(cTDs) IPFc-RFBs strategy DE-AEFA algorithm

Improved photocatalytic performance of acetaldehyde degradation via crystal plane regulation on truncated octahedral ceO_(2)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2024年第5期43卷 2026-2038页

作者： Bin Xu Lu Jia hui Yang Yue Wang Si-Yu Fan sai-sai Yuan Qi-TaoZhang Ming Zhang Teruhisa Ohno School of chemistry and chemical Engineering Yangzhou UniversityYangzhou 225002China college of Environmental Science and Engineering Yangzhou UniversityYangzhou225127China Department of Applied chemistry Faculty of EngineeringKyushu Institute of TechnologyKitakyushu804-8550Japan School of Environmental and chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212000China National&Local Joint Engineering Research center for Mineral Salt Deep Utilization Huaiyin Institute of TechnologyHuaian 223003China School of Materials Science and Engineering Henan University of Science and TechnologyLuoyang 471000China International collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China

In this study,the truncated octahedral ceO_(2)(ceO_(2)-to)with special morphology was prepared by the solvothermal method with oleic acid(OA)and oleamine(OM)as the morphology-directing ***-resolution transmission electron microscopy(hRTEM)results show that ceO_(2)-to exposes composite{100}and{111}facets,while ceO_(2)cubic(ceO_(2)-c)and ceO_(2)octahedral(ceO_(2)-o)only expose single crystal facets of{100}plane and{111}plane,***,this ceO_(2)-to photocatalyst exhibits remarkable photooxidation performance of gaseous acetaldehyde(ch_(3)chO)degradation,in which cO_(2)generation value reaches 1.78 and 7.97-times greater than that of ceO_(2)-c and ceO_(2)-o,*** addition,the active species trapping experiment signifies that superoxide(·O_(2)^(-))and holes(h^(+))are the main reactive substances during the ch_(3)chO degradation process,and the electron paramagnetic resonance(EPR)spectra indicates that the former is the major ***,the electron transfer mechanism between ceO_(2)-to{100}and{111}facets and the surface oxygen adsorption ability are revealed via density functional theory(DFT)*** is also confirmed that{100}facets are more conducive to the absorption of acetaldehyde than{111}***,a reasonable mechanism for improved photocatalytic ch_(3)chO degradation on ceO_(2)-to is proposed based on relevant experiments and DFT *** study demonstrates that the systematic development of surface homojunction structured photocatalysts can efficiently increase the degradation activity for volatile organic compounds(VOcs).It also offers additional direction for optimizing the photocatalytic activity of other ceriumbased photocatalysts.

关键词： Truncated octahedral ceO_(2)(ceO_(2)-to) composite crystal faces Surface energy level Efficient electrontransfer

维普期刊数据库

Effects of improved amino acid balance diet on lysine mammary utilization, whole body protein turnover and muscle protein breakdown on lactating sows

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2024年第5期15卷 2031-2043页

作者： sai Zhang Juan c.Marini Vengai Mavangira Andrew claude Julie Moore Mahmoud A.Mohammad Nathalie L.Trottier Department of Animal Science Michigan State UniversityEast Lansing 48824USA State Key Laboratory of Swine and Poultry Breeding Industry Key Laboratory of Animal Nutrition and Feed Science in South ChinaMinistry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of Animal Breeding and NutritionInstitute of Animal ScienceGuangdong Academy of Agricultural SciencesGuangzhou 510640PR China USDA/ARS children’s Nutrition Research center and Pediatric critical care Medicine Department of PediatricsBaylor College of MedicineHoustonTX 77030USA Department of Large Animal clinical Sciences Michigan State UniversityEast LansingMI 48824USA Present address:Department of Animal Science Cornell UniversityFrank Morrison Hall507 Tower RoadIthacaNY 14853‑4801USA

Background The study objective was to test the hypothesis that low crude protein(cP)diet with crystalline amino acids(cAA)supplementation improves Lys utilization efficiency for milk production and reduces protein turnover and muscle protein *** lactating multiparous Yorkshire sows were allotted to 1 of 2 isocaloric diets(10.80 MJ/kg net energy):control(cON;19.24%cP)and reduced cP with“optimal”AA profile(OPT;14.00%cP).Sow body weight and backfat were recorded on d 1 and 21 of lactation and piglets were weighed on d 1,14,18,and 21 of *** d 14 and 18,a subset of 9 sows(cON=4,OPT=5)was infused with a mixed solution of 3-[methyl-2h3]histidine(bolus injection)and[13c]bicarbonate(priming dose)first,then a constant 2-h[13c]bicarbonate infusion followed by a 6-h primed constant[1-13c]lysine *** blood and milk sampling were performed to determine plasma and milk Lys enrichment,Lys oxidation rate,whole body protein turnover,and muscle protein *** Over the 21-d lactation period,compared to cON,sows fed OPT had greater litter growth rate(Pcompared to cON,sows fed OPT had greater efficiency of Lys(Phole-body protein turnover efficiency(Pcompared to cON,sows fed OPT tended to have lower whole body protein breakdown rate(P=0.069).Muscle protein breakdown rate did not differ between OPT and cON(P=0.197).conclusion Feeding an improved AA balance diet increased efficiency of Lys and reduced whole-body protein turnover and protein *** results imply that the lower maternal N retention observed in lactating sows fed improved AA balance diets in previous studies may be a result of greater partitioning of AA towards milk rather than greater body protein breakdown.

关键词： Amino acid Efficiency Lactating sows Protein breakdown Protein turnover Reduced protein diet

维普期刊数据库

Predicting submerged vegetation drag with a machine learning-based method

在线全文

学校读者我要写书评

暂无评论

Journal of hydrodynamics 2024年第3期36卷 534-545页

作者： Meng-yang Liu hong-wu Tang sai-yu Yuan Jing Yan college of Water conservancy and hydropower Engineering Hohai UniversityNanjing210098China Key Laboratory of hydrologic-cycle and hydrodynamic-System of Ministry of Water Resources Hohai UniversityNanjing210098China

Accurate estimation of the drag forces generated by vegetation stems is crucial for the comprehensive assessment of the impact of aquatic vegetation on hydrodynamic processes in aquatic *** coupling relationship between vegetation layer flow velocity and vegetation drag makes precise prediction of submerged vegetation drag forces particularly *** present study utilized published data on submerged vegetation drag force measurements and employed a genetic programming(GP)algorithm,a machine learning technique,to establish the connection between submerged vegetation drag forces and flow and vegetation *** using the bulk velocity,U,as the reference velocity scale to define the drag coefficient,c_(d),and stem Reynolds number,the GP runs revealed that the drag coefficient of submerged vegetation is related to submergence ratio(h^(*)),aspect ratio(d^(*)),blockage ratio(ψ^(*)),and vegetation density(λ).The relation between vegetation stem drag forces and flow velocity is implicitly embedded in the definition of c_(d).comparisons with experimental drag force measurements indicate that using the bulk velocity as the reference velocity,as opposed to using the vegetation layer average velocity,U_(v),eliminates the need for complex iterative processes to estimate U_(v)and avoids introducing additional errors associated with U_(v)*** approach significantly enhances the model’s predictive capabilities and results in a simpler and more user-friendly formula expression.

关键词： Drag coefficient genetic programming algorithm submerged vegetation flow resistance cylinder array

Recent progress in engineering clostridium autoethanogenum to synthesize the biochemicals and biocommodities

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Synthetic and Systems Biotechnology 2024年第1期9卷 19-25页

作者： sai Wan Mingchi Lai Xinyu Gao Mingxin Zhou Song Yang Qiang Li Fuli Li Lin Xia Yang Tan Qingdao c1 Refinery Engineering Research center Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao266101ShandongChina cAS Key Laboratory of Quantitative Engineering Biology Shenzhen Institute of Synthetic BiologyShenzhen Institutes of Advanced TechnologyChinese Academy of ScienceShenzhen518055China Shenzhen Powered carbon Biotechnology co. LtdShenzhen518055China School of Life Sciences Qingdao Agricultural UniversityQingdao266109ShandongChina School of Biological Science and Technology University of JinanJinan250022ShandongChina

Excessive mining and utilization fossil fuels has led to drastic environmental consequences,which will contribute to global warming and cause further climate change with severe consequences for the human *** magnitude of these challenges requires several approaches to develop sustainable alternatives for chemicals and fuels *** this context,biological processes,mainly microbial fermentation,have gained particular *** example,autotrophic gas-fermenting acetogenic bacteria are capable of converting cO,cO_(2) and h_(2) into biomass and multiple metabolites through Wood-Ljungdahl pathway,which can be exploited for large-scale fermentation processes to sustainably produce bulk biochemicals and biofuels(*** and ethanol)from *** autoethanogenum is one representative of these chemoautotrophic bacteria and considered as the model for the gas ***,the development of synthetic biology toolbox for this strain has enabled us to study and genetically improve their metabolic capability in gas *** this review,we will summarize the recent progress involved in the understanding of physiological mechanism and strain engineering for ***,and provide our perspectives on the future development about the basic biology and engineering biology of this strain.

关键词： Genetic engineering clostridium autoethanogenum Gas fermentation carbon fixation Biofuel

Development and application of photocatalytic coating for roadside NO_(x) mitigation in hong Kong

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 chemical Letters 2024年第3期35卷 153-157页

作者： Xinwei Li Pengge Wang Shuwen han Yu huang Wingkei ho Steven sai hang ho Shun-cheng Lee Meng Wang Department of civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongChina State Key Laboratory of Loess and Quaternary Geology(SKLLQG)and Key Laboratory of Aerosol chemistry and Physics Institute of Earth EnvironmentChinese Academy of SciencesXi'an 710061China Department of Science and Environmental Studies The Education University of Hong KongHong KongChina Division of Atmospheric Sciences Desert Research InstituteRenoNV 89512United States

A facile chemical method for the development of photocatalytic coating products was proposed based on practical application perspective for the hong Kong roadside nitrogen oxides(NO_(x))***_(2)-based photocatalytic coating Pc-c film with crystallized size of around 5–6 nm was synthesized with the peptization of h_(2)O_(2).The Pc-c coating possesses a super-hydrophilicity surface and is proven to have a NO_(x)degradation rate of 46.8%with an optimum ph level of *** addition,the Pc-c coating presents a promising photocatalytic NO_(x)degradation compared with other commercially available coating products and P25 when applied on two building materials of poly-methyl methacrylate(PMMA)and concrete surface.A weather resistance simulation and a 180-day on-site field trial were carried out the attenuation effects of photocatalytic coating applied in outdoor *** on epidemiological estimation and field investigation,hospital admissions for respiratory diseases(hARD)and mortality cases(Mc)could be reduced with the application of Pc-c coating along the street *** work demonstrates the feasibility of air pollution control measures for the local roadside NO_(x)using photocatalytic technology,offering promising health benefits with environmental remediation.

关键词： Photocatalysis coating NO_(x) mitigation hong Kong Roadside

维普期刊数据库

Describing hadsorption on dual-active sites of single-atom-metals and frustrated-Lewis-pairs for reverse water-gas shift reaction

在线全文

学校读者我要写书评

暂无评论

Science china chemistry 2024年

作者： Wenbin Li Jie Gan Qing Guo sai Zhang Yongquan Qu School of chemistry and chemical Engineering Northwestern Polytechnical University School of Materials and Environmental Engineering Chizhou University Research & Development Institute of Northwestern Polytechnical University in Shenzhen

Acquiring descriptors to guide catalyst design is an ideal but challenging topic in the field of heterogeneous catalysis. herein, the adsorption energy of h*(Ead（h）) has been established to describe the catalytic activity of dual-active sites of single-atom metals and frustrated Lewis pairs （FLPs） on the porous nanorod of ceO2surface （M1/PN-ceO2） for reverse water-gas shift （RWGS）reaction. h2and cO2molecules are adsorbed and activated on single-atom metals and FLP sites, respectively, facilitating the RWGS reaction through the h*spillover from single-atom metals to PN-ceO2supports. Mechanistic investigations illustrate that the generation of h*on the single-atom metals and subsequent migration towards FLP are critical steps, determining the performance of M1/PN–ceO2for RWGS reaction. A volcanic correlation is observed between Ead（h） and catalytic activity of M1/PN–ceO2for RWGS. The Pt1/PN–ceO2catalysts with a minimal deviation of-0.01 eV from the experimentally optimized Ead（h） of-1.88 eV, exhibited an exceptional turnover frequency of 33,605 h-1and surpassed a turnover number of 20,000,000for each Pt active site during a period of 650 h at 600°c. These findings could pave the way for the rational design of highly active and durable catalysts for RWGS reaction.

关键词：

The evolution and functional divergence of 10 Apolipoprotein D-like genes in Nilaparvata lugens

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2024年第1期31卷 91-105页

作者： Jia-Bao Lu Peng-Peng Ren Qiao Li Fang he Zhong-Tian Xu sai-Nan Wang Jian-Ping chen Jun-Min Li chuan-Xi Zhang citrus Research Institute Southwest University/Chinese Academy of Agricultural SciencesNational Engineering Research Center for CitrusChongqingChina Technology center of Wuhan customs District HubeiChina Institute of Insect Science Zhejiang UniversityHangzhouChina

Apolipoprotein D(ApoD),a member of the lipocalin superfamily of proteins,is involved in lipid transport and stress *** only a single copy of the ApoD gene is found in humans and some other vertebrates,there are typically several ApoD-like genes in *** date,there have been relatively few studies that have examined the evolution and functional differentiation of ApoD-like genes in insects,particularly hemi-metabolous *** this study,we identified 10 ApoD-like genes(NlApoD1−10)with distinct spatiotemporal expression patterns in Nilaparvata lugens(BPh),which is an important pest of ***1−10 were found to be distributed on 3 chromosomes in a tandem array of NlApoD1/2,NlApoD3−5,and NlApoD7/8,and show sequence and gene structural divergence in the coding regions,indicating that multiple gene duplication events occurred during *** analysis revealed that NlApoD1−10 can be clustered into 5 clades,with NlApoD3−5 and NlApoD7/8 potentially evolving exclusively in the Delphacidae *** screening using an RNA interference approach revealed that only NlApoD2 was essential for BPh development and survival,whereas NlApoD4/5 are highly expressed in testes,and might play roles in ***,stress response analysis revealed that NlApoD3−5/9,NlApoD3−5,and NlApoD9 were up-regulated after treatment with lipopolysaccharide,h2O2,and ultraviolet-c,respectively,indicating their potential roles in stress resistance.

关键词： Apolipoprotein D BPh evolution functional divergence gene duplication NIApoD

Resist Thermal Shock Through Viscoelastic Interface Encapsulation in Perovskite Solar cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy & Environmental Materials 2024年第6期7卷 238-245页

作者： sai Ma Jiahong Tang Guizhou Yuan Ying Zhang Yan Wang Yuetong Wu cheng Zhu Yimiao Wang Shengfang Wu Yue Lu Shumeng chi Tinglu Song huanping Zhou Manling Sui Yujing Li Qi chen Beijing Key Laboratory of construction Tailorable Advanced Functional Materials and Green Applications MIIT Key Laboratory for Low-dimensional Quantum Structure and DevicesExperimental Center of Advanced MaterialsSchool of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Microstructure and Properties of Solids College of Materials Science and EngineeringBeijing University of TechnologyBeijing 100124China Analysis and Testing center Jiangnan UniversityWuxi 214122China School of Materials Science and Engineering Peking UniversityBeijing 100871China

Enhancing the lifetime of perovskite solar cells(PScs)is one of the essential challenges for their *** the external encapsulation protects the perovskite device from the erosion of moisture and oxygen under various harsh ***,the perovskite devices still undergo static and dynamic thermal stress during thermal and thermal cycling aging,respectively,resulting in irreversible damage to the morphology,component,and phase of stacked ***,the viscoelastic polymer polyvinyl butyral(PVB)material is designed onto the surface of perovskite films to form flexible interface *** PVB interface encapsulation,the surface modulus of perovskite films decreases by nearly 50%,and the interface stress range under the dynamic temperature field(−40 to 85°c)drops from−42.5 to 64.8 MPa to−14.8 to 5.0 ***,PVB forms chemical interactions with FA+cations and Pb^(2+),and the macroscopic residual stress is regulated and defects are reduced of the PVB encapsulated perovskite *** a result,the optimized device's efficiency increases from 22.21%to 23.11%.Additionally,after 1500 h of thermal treatment(85°c),1000 h of damp heat test(85°c&85%Rh),and 250 cycles of thermal cycling test(−40 to 85°c),the devices maintain 92.6%,85.8%,and 96.1%of their initial efficiencies,respectively.

关键词： device stability perovskite solar cells stress field surface modulus thermal shock

controllable optical emission wavelength in all-inorganic halide perovskite alloy microplates grown by two-step chemical vapor deposition

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2020年第11期13卷 2939-2949页

作者： Mohammad K.hossain Pengfei Guo Wayesh Qarony Yuen h.Tsang chaoping Liu sai W.Tsang Johnny c.ho Kin M.Yu Department of Physics City University of Hong KongKowloonHong Kong SARChina Department of Physics Comilla UniversityKotbariCumilla3506Bangladesh Department of Materials Science and Engineering City University of Hong KongKowloonHong Kong SARChina Department of Applied Physics The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARChina college of Physics and Optoelectronics Taiyuan University of TechnologyTaiyuan030024China Research center for Advanced Optics and Photoelectronics Department of PhysicsCollege of ScienceShantou UniversityShantou515063China Key Laboratory of Intelligent Manufacturing Technology of MOE Shantou UniversityShantou515063China

All-inorganic halide perovskites(IhP),csPbX_(3)(X=cl,Br,I)exhibiting efficient optical emissions within the spectral range of 410 to 730 nm are potential candidates for many optoelectronic *** alloying of these IhPs is expected to achieve tunable emission wavelength covering the entire visible ***,we developed a two-step chemical vapor deposition(cVD)process for growing quaternary IhP csPbX_(3)(X=cl/Br and Br/I)*** exploiting the fast diffusion of halide anions in IhPs,the alloy composition can be precisely controlled by the growth time of the respective layers once the growth of the individual ternary IhP is *** complexities in the multi-parameter optimization in the conventional cVD growth of quaternary alloys can be *** this process,we synthesized single crystalline,homogeneous and thermally stable csPbcl3_((1−X))Br_(3x)and csPbBr3_((1−X))I_(3x)perovskites alloy microplates and demonstrated continuously tunable emission covering the spectrum from 428 to 715 nm by varying the halide compositions in the *** alloy microplates also exhibit room temperature amplified spontaneous emissions(ASE)along with strong photonic discharges from the microplate’s edges and hence are potentially useful as a gain medium as well as optical cavities for emissions with wavelengths covering the visible spectrum.

关键词： chemical vapor deposition inorganic perovskites quaternary alloys emission spectrum amplified spontaneous emissions(ASE)