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boosting energy-storage capability in carbon-based supercapacitors using low-temperature water-in-salt electrolytes

journal of Energy Chemistry 2022年第7期31卷 521-530,I0013页

作者： joao Pedro A.Santos Manuel j.Pinzón érick A.Santos Rafael Vicentini cesar j.b.pagan Leonardo M.Da Silva Hudson Zanin brazilian Renewable Energies Center for Innovation on New EnergiesSchool of Electrical and Computer EngineeringUniversity of CampinasSao Paulo 13083-852Brazil Department of Semiconductors Instruments and PhotonicsSchool of Electrical and Computer EngineeringUniversity of CampinasSao Paulo 13083-852Brazil Laboratory of Fundamental and Applied Electrochemistry Department of ChemistryFederal University of Jequitinhonha e Mucuri’s ValleyMinas Gerais 39100-000Brazil

Supercapacitors(SCs) are high-power energy storage devices with ultra-fast charge/discharge properties.SCs using concentrated aqueous-based electrolytes can work at low temperatures due to their intrinsic properties, such as higher freezing point depression(FPD) and robustness. besides the traditional organic-and aqueous-based(salt-in-water) electrolytes used in SCs, water-in-salt(WISE) sodium perchlorate electrolytes offer high FPD, non-flammability, and low-toxicity conditions, allowing the fabrication of safer, environmentally friendly, and more robust devices. For the first time, this work reports a comprehensive study regarding WISE system’s charge-storage capabilities and physicochemical properties under low-temperature conditions(T bon-based electrodes. The effect of temperature reduction on the electrolyte viscosity and electrical properties was investigated using different techniques and the in-situ(or operando) Raman spectroscopy under dynamic polarization conditions.The cell voltage, equivalent series resistance, and specific capacitance were investigated as a function of the temperature. The cell voltage(U) increased ~ 50%, while the specific capacitance decreased ~20%when the temperature was reduced from 25 ℃ to -10 ℃. As a result, the maximum specific energy(E = CU^(2)/2) increased ~ 100%. Therefore, low-temperature WISEs are promising candidates to improve the energy-storage characteristics in SCs.

关键词： Carbon supercapacitors Water-in-salt electrolytes Low-temperature charge-storage Specific energy improvement at low temperatures

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Ion dynamics into different pore size distributions in supercapacitors under compression

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journal of Energy Chemistry 2023年第5期80卷 110-119,I0004页

作者： joão Pedro Aguiar dos Santos cesar j.b.pagan Rafael Vicentini Reinaldo F.Teófilo Renato beraldo Leonardo M.Da Silva Hudson Zanin brazilian Renewable Energies Center for Innovation on New EnergiesSchool of Electrical and Computer EngineeringUniversity of CampinasAv.Albert Einstein 40CampinasSP13083-852Brazil School of Electrical and Computer Engineering University of CampinasSP 13083-852Brazil Multivariate Chemical Data Analysis Laboratory Department of ChemistryUniversidade Federal de Viçosa36570-900 ViçosaMGBrazil Department of Chemistry Laboratory of Fundamental and Applied ElectrochemistryFederal University of Jequitinhonha and Mucuri's ValleyRodovia MGT 367km 5835000 Alto da Jacuba39100-000DiamantinaMGBrazil

Compressing supercapacitor(SCs)electrode is essential for improving the energy storage characteristics and minimizing ions’distance travel,faradaic reactions,and overall ohmic resistance.Studies comprising the ion dynamics in SC electrodes under compression are still rare.So,the ionic dynamics of five aqueous electrolytes in electrodes under compression were studied in this work for tracking electrochemical and structural changes under mechanical stress.A superionic state is formed when the electrode is compressed until the micropores match the dimensions with the electrolyte’s hydrated ion sizes,which increases the capacitance.If excessive compression is applied,the accessible pore regions decrease,and the capacitance drops.Hence,as the studied hydrated ions have different dimensions,the match between ion/pore sizes differs.To the LiOH and NaClO4electrolytes,increasing the pressure from 60 to 120 and 100 PSI raised the capacitance from 13.5 to 35.2 F g^(-1)and 30.9 to 39.0 F g^(-1),respectively.So,the KOH electrolyte with the lowest and LiCl with the biggest combination of hydrated ion size have their point of maximum capacitance(39.5 and 36.7F g^(-1))achieved at 140 and 80 PSI,respectively.To LiCl and KCl electrolytes,overcompression causes a drop in capacitance higher than 23%.

关键词： Mechanic compression Pore size distribution lon dynamics Activated carbon Supercapacitors

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best practices for electrochemical characterization of supercapacitors

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journal of Energy Chemistry 2023年第5期80卷 265-283,I0007页

作者： joão Pedro Aguiar dos Santos Fernando cesar Rufino joǎo IYutaka Ota Rodolfo CFernandes Rafael Vicentini cesar jbpagan Leonardo Morais Da Silva Hudson Zanin brazilian Renewable Energies Center for Innovation on New EnergiesSchool of Electrical and Computer EngineeringUniversity of CampinasSP 13083-852Brazil School of Electrical and Computer Engineering University of CampinasSP 13083-852Brazil Department of Chemistry Laboratory of Fundamental and Applied ElectrochemistryFederal University of Jequitinhonha e Mucuri's ValleyRodovia MGT 367km 5835000Alto da Jacuba39100-000 DiamantinaMGBrazil

We discuss here essential aspects of the experimental supercapacitors characterization by a series of well-known electrochemical methods.We are motivated by a considerable number of publications that misreport procedures and results.Authors often conceal or neglect essential information about the electrochemical analytical apparatus used and its configuration.The lack of such information may lead researchers,especially inexperienced ones,to misunderstand the procedures and results.Eventually,the misled electrochemical equipment configuration favors misinterpretation of data and low reproducibility rates.This paper aims to highlight these issues and clarify them.We explain fundamental concepts of some electrochemical analytical methods,such as cyclic voltammetry,galvanostatic charge-discharge,single potential step chronoamperometry,and electrochemical impedance spectroscopy,focusing on the supercapacitor field.Distinct configurations of electrical parameters are presented and discussed to highlight the effects of incorrect setup and uncover misleading results.We discuss how the electrochemical setup and data analyses matter in reliable data results for the supercapacitor.

关键词： Supercapacitor Electrochemical instrumentation Electrochemical methods Electrochemistry

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重症监护室护士限制治疗努力的能力:整合性综述

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International journal of Nursing Sciences 2024年第1期11卷 143-154,I0003页

作者： Elvia R.Lopez-Panza Vanessa C.Pacheco-Roys Kelly j.Fernandez-Ahumada Diana C.Díaz-Mass María Y.Exposito-Concepcion Elizabeth Villarreal-Cantillo cesar I.Aviles Gonzalez Nursing Department Universidad del NorteBarranquillaColombia Nursing Program Faculty of Health SciencesUniversidad Popular del CesarValleduparColombia Clínica Valledupar ValleduparColombia Hospital Universidad del Norte SoledadColombia Department of Medical Sciences and Public Health University of CagliariCittadella Universitaria di MonserratoCagliariItaly

目的在重症监护病房(IntensiveCareUnit,ICU),护土难免会遇到需要限制治疗努力(limiting therapeutie efort,LTE)的患者,尽管多数护士还缺乏为这些临终患者及其家庭提供支持的准备。本综述旨在描述ICU护士在LTE中需要具备的能力。方法对... 详细信息

目的在重症监护病房(IntensiveCareUnit,ICU),护土难免会遇到需要限制治疗努力(limiting therapeutie efort,LTE)的患者,尽管多数护士还缺乏为这些临终患者及其家庭提供支持的准备。本综述旨在描述ICU护士在LTE中需要具备的能力。方法对2010年--2023年发表的文献进行综述。系统检索了5个数据库:Medline、Wiley Online Library、SciELO、ScienceDirect和Web of Science。使用关键评估项目工具西班牙语版(Critical Appraisal Skills Programme in Spanish,CASPe)作为评判性阅读工具。使用牛津循证医学中心(Center for Evidence-based Medicine.,CEbM)评估工具确定证据级别和推荐强度。结果共纳入25篇文献。ICU护士LTE护理的能力包括对患者的直接护理、以家庭为中心的护理以及护士在团队中的作用。该综述确定了3个类别的能力:作为患者、家庭与跨学科团队之间维护者的能力,在LTE方面的决策能力,在患者生命末期治疗和护理干预的能力。结论ICU护士在LTE方面需要具备相应的能力,这对患者的生活质量死亡尊严以及患者家庭应对悲伤的全面支持至关重要。

关键词：重症监护家庭支持重症监护病房护士的作用安宁疗护专业能力

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Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATLAS detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. Aad b. Abbott K. Abeling N.j. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti b.S. Acharya C. Adam bourdarios L. Adamczyk S.V. Addepalli M.j. Addison j. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras j. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat b. Aitbenchikh I. Aizenberg M. Akbiyik T.P.A. Åkesson A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi j. Albert P. Albicocco G.L. Albouy S. Alderweireldt M. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos F. Alfonsi M. Algren M. Alhroob b. Ali H.M.j. Ali S. Ali S.W. Alibocus M. Aliev G. Alimonti W. Alkakhi C. Allaire b.M.M. Allbrooke j.F. Allen C.A. Allendes Flores P.P. Allport A. Aloisio F. Alonso C. Alpigiani M. Alvarez Estevez A. Alvarez Fernandez M. Alves Cardoso M.G. Alviggi M. Aly Y. Amaral Coutinho A. Ambler C. Amelung M. Amerl C.G. Ames D. Amidei S.P. Amor Dos Santos K.R. Amos V. Ananiev C. Anastopoulos T. Andeen j.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel M.T. Anthony E. Antipov M. Antonelli F. Anulli M. Aoki T. Aoki j.A. Aparisi Pozo M.A. Aparo L. Aperio bella C. Appelt A. Apyan N. Aranzabal S.j. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena j-F. Arguin S. Argyropoulos j.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah j. Assahsah K. Assamagan R. Astalos S. Atashi R.j. Atkin M. Atkinson H. Atmani P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. babal H. bachacou K. bachas A. bachiu F. backman A. badea P. bagnaia M. bahmani A.j. bailey V.R. bailey j.T. baines L. baines O.K. baker E. bakos D. bakshi Gupta V. balakrishnan R. balasubramanian E.M. baldin P. balek E. ballabene F. balli L.M. baltes W.K. balunas j. balz E. banas M. bandieramonte A. bandyopadhyay S. bansal L. barak M. barakat E.L. barberio D. barberis M. barbero M.Z. barel K.N. barends T. barillari M-S. barisits T. barklow P. baron D.A. baron Mo The ATLAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the Large Hadron Collider,as Standard Model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced background.This paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATLAS experiment.Two taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet pseudorapidity.Differences in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAS jET QUARK GLUON TAGGING

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Quantitative genetic analysis of chlorophyll a fluorescence parameters in maize in the field environments

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journal of Integrative Plant biology 2014年第7期56卷 695-708页

作者： Domagoj ?imi? Hrvoje Lepedu? Vlatka jurkovi? jasenka Antunovi? Vera cesar Agricultural Institute Osijek Faculty of Humanities and Social Sciences Department of biology Josip Juraj Strossmayer University of Osijek

Chlorophyl fluorescence transient from initial to maximum fluorescence （“P”step） throughout two intermedi-ate steps （“j”and“I”）（jIP-test） is considered a reliable early quantitative indicator of stress in plants. The jIP-test is particularly useful for crop plants when applied in variable field environments. The aim of the present study was to conduct a quantitative trait loci （QTL） analysis for nine jIP-test parameters in maize during flowering in four field environ-ments differing in weather conditions. QTL analysis and identification of putative candidate genes might help to explain the genetic relationship between photosynthesis and different field scenarios in maize plants. The jIP-test param-eters were analyzed in the intermated b73 ？ Mo17 （IbM） maize population of 205 recombinant inbred lines. A set of 2,178 molecular markers across the whole maize genome was used for QTL analysis revealing 10 significant QTLs for seven jIP-test parameters, of which five were co-localized when combined＆amp;nbsp;over the four environments indicating polygenic inheritance and pleiotropy. Our results demonstrate that QTL analysis of chlorophyl fluorescence parameters was capable of detecting one pleiotropic locus on chromosome 7, coinciding with the gene gst23 that may be associated with efficient photosynthe-sis under different field scenarios.

关键词： Chlorophyll a fluorescence parameters field conditions intermated b73× Mo17 recombinant inbred lines jIP-test maize （Zeamays L.） quantitative trait loci

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Spatial Interpolation Applied a Crustal Thickness in brazil

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journal of Geographic Information System 2012年第2期4卷 142-152页

作者： cesar Garcia Pavao George Sand Franca Giuliano S.Marotta Paulo Henrique b.j.Menezes Gervasio barbosa S.Neto Henrique Llacer Roig Seismological Observatory University of BrasiliaBrasiliaBrazil Laboratory of Remote Sensing and Spatial Analysis University of BrasiliaBrasiliaBrazil

The use of spatial interpolation methods of data is becoming increasingly common in geophysical analysis, for that reason, currently, several software already contain many of these methods, allowing more detailed studies. In the present work four interpolation methods are evaluated, for the crustal thickness data of brazil tectonic provinces, with the intention of making Moho’s map of the regions. The methods used were IDW, Natural Neighbor, Spline and Kriging. We compiled 257 data that constituted a geographic database implemented in the template Postgree PostGIS and were processed using the tools of interpolation located in the Spatyal Analyst Tools program ArcGIS?9 ESRI. Traditional methods, IDW, Natural Neighbor and Spline, generate artifacts in their results, the effects of aim, not consistent with the behavior of crust. Such anomalies are generated because of mathematical formulation methods added to data compiled gravimetry. The analysis results of geostatistical Kriging are more refined and consistent, showing no specific anormalities, i.e., the crustal thickness variation (thinning and thickening) is introduced gradually. Initial our estimates were separated in four specific blocks. With the approval of new networks (bRASIS, RSISNE and RSIS), the crustal thickness database for brazil may be amended or supplemented so that new models may be generated more consistently, complementing studies of regional tectonics evolution and seismicity.

关键词： Spatial Interpolation Crustal Thickness Tectonic Provinces of brazil

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bite force and masticatory efficiency in individuals with different oral rehabilitations

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Open journal of Stomatology 2012年第1期2卷 21-26页

作者： Laner b.Rosa cesar bataglion Selma Siéssere Marcelo Palinkas Wilson Mestriner júnior Osvaldo de Freitas Moara de Rossi Lígia Franco de Oliveira Simone C.H.Regalo Department of Morphology Stomatologyand PhysiologySchool of DentistryUniversity of Sao PauloRibeirao PretoBrazil Department of Dentistry School of DentistryUniversity of Sao PauloRibeirao PretoBrazil Department of Pediatric Clinics Preventive and Community DentistryRibeirao Preto Dental SchoolUniversity of Sao PauloRibeirao PretoBrazil Department of Pharmaceutical Sciences Ribeirao Preto School of Pharmaceutical SciencesUniversity of Sao PauloRibeirao PretoBrazil

Objective: This study was analyzed adult individuals rehabilitated with different types of dentures, with the purpose of verifying the effect that different types of denture rehabilitation have on maximal bite force and masticatory efficiency. The aim of this study is to facilitate diagnosis and prognosis, bringing contributions to the quality and stability of treatments Materials and Methods: Fifty individuals were divided into five groups: one control group with ten dentate individuals and another four groups formed according to the type of rehabilitation treatment. Maximal bite force was recorded on the first molar regions, and masticatory efficiency rates were recorded on the right, left and habitual sides. Results: Data related to the maximal bite force recordings were statistically significant across the analyzed groups [ANOVA for p ≤ 0.01]. The data related to masticatory efficiency rates also showed statistical significance across all groups [ANOVA for p ≤ 0.05] in the three tested conditions [mastication on the right, left and habitual sides]. Conclusion: The group of individuals rehabilitated with implants and single crowns showed greater bite force values and masticatory efficiency rates compared to the other groups, and the treatment with implantsupported mandibular overdenture improved the function compared to conventional complete dentures, thus evincing that the stomatognathic system has different functional behaviors depending on the type of oral rehabilitation.

关键词： bite Force Masticatory Performance Oral Rehabilitation

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Forage Legume Seeds Submitted to in Vitro and in Situ Fermentation Techniques

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American journal of Plant Sciences 2013年第12期4卷 66-70页

作者： bruno b.Deminicis Henrique D.Vieira joao C.C.Almeida Saulo A.C.Araújo cesar C.Guimaraes Filho Raphael P.Araújo Deise D.Castagnara Deolindo Stradiotti júnior Department of Animal Science and Production Federal University of Espírito SantoVitoriaBrazil Laboratory of Plant Science State University of Norte Fluminense Darcy RibeiroRio de JaneiroBrazil Department of Animal Science and Production Federal Rural University of Rio de JaneiroRio de JaneiroBrazil Department of Animal Science and Production Federal University of Jequitinhonha and Mucuri ValleysDiamantinaBrazil Department of Animal Science and Production Federal University of PampaUruguaianaBrazil

The present study was carried out to evaluate the survival rate of four tropical legume seeds submitted to different periods of ruminal incubation simulated by in vitro and in situ fermentation. The species studied were butterfly pea, stylosanthes, archer and perennial soybean. Four Holstein dairy cows fistulated in rumen were used in the in situ stage. A completely randomized design was used, in a 4 × 6 factorial arrangement (four species, six treatment periods) in the in vitro stage, with four repetitions. A completely randomized block design, arranged in a 4 × 6 factorial scheme (four species × six incubation periods), was used in the in situ stage, with four repetitions. The seeds (50 units of only one species at each repetition) were placed in erlenmeyer flask (250 mL) and were put in a 10 × 15 cm nylon bag in the in vitro stage. The times of incubation were: 6, 12, 24, 48, 96 and 144 hours and the time zero was estimated in the laboratory. The results demonstrate that, when submitted to ruminal incubation, due to their hard and impermeable teguments, legume seeds presented high resistance potential, and, thus, greater chances of germinating after passage through the gastrointestinal tract of bovines, when defecated in pastures. However, stylosanthes are not recommended for insertion in bovine feeding for this purpose, because they do not resist ruminal digestion.

关键词： Germination Ruminal Liquid Fabaceae Seeds

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Application of Hartree-Fock Method for Modeling of bioactive Molecules Using SAR and QSPR

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Computational Molecular bioscience 2014年第1期4卷 1-24页

作者： Cleydson b. R. Santos Cleison C. Lobato Francinaldo S. braga Sílvia S. S. Morais cesar F. Santos Caio P. Fernandes Davi S. b. brasil Lorane I. S. Hage-Melim Williams j. C. Macêdo josé C. T. Carvalho Laboratory of Modeling and Computational Chemistry Federal University of Amap&#225 Macap&#225 Brazil Laboratory of Modeling and Computational Chemistry Federal University of Amap&#225 Macap&#225 Brazil Laboratory of Drug Research School of Pharmaceutical Sciences Federal University of Amap&#225 Macap&#225 Brazil Laboratory of Modeling and Computational Chemistry Federal University of Amap&#225 Macap&#225 Brazil Institute of Technology Federal University of Par&#225 Bel&#233m Brazil Laboratory of Modeling and Computational Chemistry Federal University of Amap&#225 Macap&#225 Brazil Postgraduate Program in biotechnology and biodiversity-Network bIONORTE Campus Universit&#225rio Marco Zero Macap&#225 Brazil Laboratory of Modeling and Computational Chemistry Federal University of Amap&#225 Macap&#225 Brazil Postgraduate Program in biotechnology and biodiversity-Network bIONORTE Campus Universit&#225rio Marco Zero Macap&#225 Brazil Laboratory of Drug Research School of Pharmaceutical Sciences Federal University of Amap&#225 Macap&#225 Brazil Laboratory of Modeling and Computational Chemistry Federal University of Amap&#225 Macap&#225 Brazil Postgraduate Program in biotechnology and biodiversity-Network bIONORTE Campus Universit&#225rio Marco Zero Macap&#225 Brazil Laboratory of Drug Research School of Pharmaceutical Sciences Federal University of Amap&#225 Macap&#225 Brazil Laboratory of Statistical and Computational Modeling University of the State of Amap&#225 Macap&#225 Brazil

The central importance of quantum chemistry is to obtain solutions of the Schr?dinger equation for the accurate determination of the properties of atomic and molecular systems that occurred from the calculation of wave functions accurate for many diatomic and polyatomic molecules, using Self Consistent Field method (SCF). The application of quantum chemical methods in the study and planning of bioactive compounds has become a common practice nowadays. From the point of view of planning it is important to note, when it comes to the use of molecular modeling, a collective term that refers to methods and theoretical modeling and computational techniques to mimic the behavior of molecules, not intend to reach a bioactive molecule simply through the use of computer programs. The choice of method for energy minimization depends on factors related to the size of the molecule, parameters of availability, stored data and computational resources. Molecular models generated by the computer are the result of mathematical equations that estimate the positions and properties of the electrons and nuclei, the calculations exploit experimentally, the characteristics of a structure, providing a new perspective on the molecule. In this work we show that studies of Highest Occupied Molecular Orbital Energy (HOMO), Low Unoccupied Molecular Orbital Energy (LUMO) and Map of molecular electrostatic potential (MEP) using Hatree-Fock method with different basis sets (HF/3-21G*, HF/3-21G**, HF/6-31G, HF/6-31G*, HF/6-31G** and HF/6-311G), that are of great importance in modern chemistry, biochemistry, molecular biology, and other fields of knowledge of health sciences. In order to obtain a significant correlation, it is essential that the descriptors are used appropriately. Thus, the quantum chemical calculations are an attractive source of new molecular descriptors that can, in principle, express all the geometrical and electronic properties of molecules and their interactions with biological receptor.

关键词： Molecular Modeling Meps Maps Orbital Frontier Quantum Chemical Methods

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