检索结果-南通市图书馆

Recent advances on first-principles modeling for the design of materials in CO2 capture technologies

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2019年第7期27卷 1554-1565页

作者： Yue Yuan Huabei You luis Ricardez-Sandoval Chemical Engineering Department Tianjin UniversityTianjin 300072China Chemical Engineering Department University of Waterloo200 University Ave WWaterlooON N2L 3G1Canada

Novel technologies in consideration of industrial sustainability(IS)are in urgent need to satisfy the increasing demands from the *** realizes the production of materials while maintaining environmental and resource *** chemical materials used in CO2 capture and storage(CCS)technologies play a significant role in the disposal of greenhouse gas emissions coming from large stationary fossil-fired power plants,which breaks the principle of IS and brings severe environmental *** study aims at providing a detailed review of first-principles modeling(density functional theory,DFT)of materials in CO2 capture *** analysis provides insight into the atomic properties of the studied systems and builds an efficient guidance of the future design of the materials used in CO2 capture *** materials including oxygen carriers,metal organic frameworks,membranes,zeolites,ionic liquids and some other promising candidates are *** computational studies bring the outcomes of the adsorption behaviors,structural characteristics and accurate force fields of the studied materials in short turn-around times at low *** review can stimulate the design of novel materials with specific target of CO2 capture and promote the industrial sustainability of fossil fuel combustion technologies.

关键词： Industrial sustainability CO2 capture Density functional theory Fossil fuels

Cellular automata model for traffic flow with safe driving conditions

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2014年第5期23卷 216-226页

作者： María Elena Lárraga luis Alvarez-Icaza Instituto de Ingeniería Universidad Nacional Autónoma de México04510Coyoacán D.F.México

In this paper, a recently introduced cellular automata （CA） model is used for a statistical analysis of the inner micro-scopic structure of synchronized traffic flow. The analysis focuses on the formation and dissolution of clusters or platoons of vehicles, as the mechanism that causes the presence of this synchronized traffic state with a high flow. This platoon formation is one of the most interesting phenomena observed in traffic flows and plays an important role both in manual and automated highway systems （AHS）. Simulation results, obtained from a single-lane system under periodic boundary conditions indicate that in the density region where the synchronized state is observed, most vehicles travel together in pla- toons with approximately the same speed and small spatial distances. The examination of velocity variations and individual vehicle gaps shows that the flow corresponding to the synchronized state is stable, safe and highly correlated. Moreover, results indicate that the observed platoon formation in real traffic is reproduced in simulations by the relation between vehicle headway and velocity that is embedded in the dynamics definition of the CA model.

关键词： traffic flow models synchronized traffic cellular automata platoons formation

Additives in metal halide perovskite films and their applications in solar cells

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2020年第7期29卷 215-228,I0007页

作者： Zonghao Liu luis K.Ono Yabing Qi Energy Materials and Surface Sciences Unit(EMSSU) Okinawa Institute of Science and Technology Graduate University(OIST)Okinawa 904-0495Japan

The booming growth of organic-inorganic hybrid lead halide perovskite solar cells have made this promising photovoltaic technology to leap towards *** of the most important issues for the evolution from research to practical application of this technology is to achieve high-throughput manufacturing of large-scale perovskite solar *** particular,realization of scalable fabrication of large-area perovskite films is one of the essential *** the past ten years,a great number of approaches have been developed to deposit high quality perovskite films,to which additives are introduced during the fabrication process of perovskite layers in terms of the perovskite grain growth control,defect reduction,stability enhancement,***,we first review the recent progress on additives during the fabrication of large area perovskite films for large scale perovskite solar cells and *** then focus on a comprehensive and in-depth understanding of the roles of additives for perovskite grain growth control,defects reduction,and stability *** advancement of the scalable fabrication of high-quality perovskite films and solar cells using additives to further develop large area,stable perovskite solar cells are discussed.

关键词： Perovskite solar cell Additive Solar modules Film quality

Theranostic of orthotopic gliomas by core-shell structured nanoplatforms

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2022年第6期11卷 1034-1035页

作者： luis D.Carlos Phantom-G CICECO-Aveiro Institute of MaterialsPhysics DepartmentUniversity of Aveiro3810-193 AveiroPortugal

Smart designed core-shell nanostructures formed by a YVO_(4)∶Nd^(3+) nanoparticle as the core,the sonosensitizer hematoporphyrinmonomethyl ether as the carrier,and MnO_(2) nanosheets as the shell demonstrate bimodal ... 详细信息

关键词： modal glioma orthotopic

Invasive-invaded system of non-Lipschitz porous medium equations with advection

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 Biomathematics 2021年第7期14卷 299-327页

作者： Jose luis Diaz Palencia Escuela Politecnica Superior Universidad Francisco de Vitoria Ctra.Pozuelo-Majadahonda Km 1 80028223Pozuelo de AlarconMadrid

This work provides analytical results towards applications in the field of invasive-invaded systems modeled with nonlinear diffusion and with *** results focus on showing regularity,existence and uniqueness of weak solutions using the condition of a nonlinear slightly positive parabolic operator and the reaction-absorption monotone *** coupling in the reaction-absorption terms,that characterizes the species interaction,impedes the formulation of a global comparison principle that is shown to exist ***,this work provides analytical solutions obtained as selfsimilar minimal and maximal profiles.A propagating diffusive front is shown to exist until the invaded specie notes the existence of the *** the desertion of the invaded st arts,the diffusive front vanishes globally and the nonlinear diffusion concentrates only on the propagating tail which exhibits finite ***,the invaded specie is shown to exhibit an exponential decay along a characteristic *** exponential decay is not trivial in the nonlinear diffusion case and confirms that the invasive continues to feed on the invaded during the desertion.

关键词： Nonlinearity reaction absorption coupled system diffusion porous media

Structural performance assessment of GFRP elastic gridshells by machine learning interpretability methods

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Structural and Civil Engineering 2022年第10期16卷 1249-1266页

作者： Soheila KOOKALANI Bin CHENG Jose luis Chavez TORRES Department of Civil Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Civil Engineering Technical University of LojaLoja 110102Ecuador

The prediction of structural performance plays a significant role in damage assessment of glass fiber reinforcement polymer(GFRP)elastic gridshell *** learning(ML)approaches are implemented in this study,to predict maximum stress and displacement of GFRP elastic gridshell *** ML algorithms,including linear regression(LR),ridge regression(RR),support vector regression(SVR),K-nearest neighbors(KNN),decision tree(DT),random forest(RF),adaptive boosting(AdaBoost),extreme gradient boosting(XGBoost),category boosting(CatBoost),and light gradient boosting machine(LightGBM),are implemented in this *** features of structural performance considered in this study are the maximum stress as f1(x)and the maximum displacement to self-weight ratio as f2(x).A comparative study is conducted and the Catboost model presents the highest prediction ***,interpretable ML approaches,including shapely additive explanations(SHAP),partial dependence plot(PDP),and accumulated local effects(ALE),are applied to explain the *** is employed to describe the importance of each variable to structural performance both locally and *** results of sensitivity analysis(SA),feature importance of the CatBoost model and SHAP approach indicate the same parameters as the most significant variables for f1(x)and f2(x).

关键词： machine learning gridshell structure regression sensitivity analysis interpretability methods

Potential use of magnesium industrial waste for synthesis of Li and Mg co-doped LiMn_(2)O_(4)nanoparticles as cathode material for Li-ion batteries:Effect of sintering temperature

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第5期15卷 4500-4516页

作者： Aleksei Llusco luis Rojas Svetlana Ushak Mario Grageda Department of Chemical Engineering and Mineral Processing and Center for Advanced Study of Lithium and Industrial Minerals(CELiMIN) Universidad de AntofagastaAntofagasta 1270300Chile

Potential advantages of active electrode nanomaterials have led to development of high energy and power density lithium-ion(Li-ion)***,under increasing demand for critical resources such as lithium and cobalt,it is necessary to use abundant raw materials,which can be obtained from industrial *** this work,purified Mg(OH)_(2)from waste generated in the production of Li2CO3 with natural brines from the Salar de Atacama(Chile)is used as a doping agent for synthesis of LiMn_(2)O_(4)(LMO)spinel octahedral nanoparticles co-doped with excess Li and *** of a pure cubic spinel phase(Fd3m)takes place at 500℃and sintering temperature effect at 580 and 750℃,thus the elemental composition and the structural,morphological,and electrochemical properties are studied in *** electrochemical performance at room temperature is obtained for Li_(1.03)Mg_(0.05)Mn_(1.92)O_(4)spinel sintered at 750℃with an initial discharge capacity of 121.3 mAh·g^(-1)and capacity retention of 94.0%after 100 cycles at C/3.A locally ordered spinel structure is obtained at 750℃,and doping with Mg^(2+)improves structural *** between both effects resulted in a high Li^(+)diffusion rate(1.29×10^(-9)cm^(2)·s^(-1))significantly improving cycling performance at elevated C-rates in 50℃.

关键词： LiMn_(2)O_(4)(LMO)spinel Mg doped excess Li octahedral nanoparticle industrial waste lithium-ion(Li-ion)batteries

A graph-based representation of knowledge for managing land administration data from distributed agencies–A case study of Colombia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Geo-Spatial Information Science 2022年第2期25卷 259-277页

作者： luis M.Vilches-Blázquez Jhonny Saavedra Investigación en Computación Instituto Politécnico NacionalMexico CityMexico School of Land Surveying Geodesy and Mapping EngineeringUniversidad Politécnica de MadridMadridSpain

Multiple efforts have been performed worldwide around diverse aspects of land ***,land administration data and systems’notorious heterogeneity remains a longstanding challenge to develop a harmonized *** this sense,the traditional Spatial Data Infrastructures adoption is not enough to overcome this challenge since data sources’heterogeneity implies needs related to harmonization interoperability,sharing,and integration in land administration *** paper proposes a graph-based represen-tation of knowledge for integrating multiple and heterogeneous data sources(tables,shape-files,geodatabases,and WFS services)belonging to two Colombian agencies within a decentralized land administration *** knowledge graphs are developed on an ontology-based knowledge representation using national and international standards for land *** approach aims to prevent data isolation,enable cross-datasets integration,accomplish machine-processable data,and facilitate the reuse and exploitation of multi-jurisdictional datasets in a single approach.A real case study demonstrates the applicability of the land administration data cycle deployed.

关键词： Land administration knowledge graph ontology heterogeneity data integration

Update and actual trends on bacterial infections following liver transplantation

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 Gastroenterology 2008年第32期14卷 4977-4983页

作者： Jose luis del Pozo Division of Infectious Diseases Department of Medicine Mayo Clinic Rochester

Recent advances in effective antimicrobial prophylactic strategies have led to a decline in the incidence of opportunistic infections in liver transplant recipients. However, morbidity and mortality due to infectious diseases remain as major problems. Bacterial infections occurring early after transplant are mainly related to the technical aspects of the procedure. By contrast, after the first postoperative days and beyond, the nature and variety of infectious complications change. Opportunistic bacterial infections are uncommon after 6 mo in patients receiving stable and reduced maintenance doses of immunosuppression with good graft function and little is documented about these cases in the literature. Transplant recipients may be more susceptible to some pathogens, such as the Nocardia species, Legionella species, Listeria monocytogenes , Mycoplasma species, Salmonella species or Rhodococcus equi. Respiratory infections due to capsulated bacteria, such as Streptococcus pneumoniae and Haemophilus intTuenza, can be life- threatening if not promptly treated in this population. These late bacterial infections may be very difficult to recognize and treat in this population. In this article, we review what has been described in the literature with regards to late bacterial infections following liver transplantation.

关键词： Liver transplant Bacterial infections Nocardia species Listeria species Legionella species Mycoplasma species Bartonella species