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Photometric investigation and orbital period analyses of the W UMa binaries FP Lyn, FV CVn and V354 UMa

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Research in Astronomy and Astrophysics 2019年第7期19卷 103-114页

作者： Raul Michel Qi-Qi Xia jesus Higuera1 Observatorio Astronomico Nacional Instituto de AstronomíaUniversidad Nacional Autońoma de MéxicoApartado Postal 877EnsenadaB.C.22830Mexico Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment Institute of Space SciencesShandong UniversityWeihai 264209China

New light curves and photometric solutions of FP Lyn,FV CVn and V354 UMa are *** found that these three systems are W-subtype shallow contact *** addition,it is obvious that the light curves of FP Lyn and V354 UMa are ***,a hot spot was added on the primary star of FP Lyn and a dark spot was added on the secondary star of V354 *** the same time,we added a third light to the photometric solution of FP Lyn for the final *** obtained mass ratios and fill-out factors are q = 1.153 and f = 13.4% for FP Lyn,q = 1.075 and f = 4.6% for FV CVn,and q = 3.623 and f = 10.7% for V354 UMa *** investigations of orbital period for these three systems indicate that the periods are *** Lyn and V354 UMa were discovered to have secularly increasing components with rates of dp/dt = 4.19 ×10^-7 dyr^-1 and dp/dt = 7.70 ×10^-7 dyr^-1 respectively,which are feasibly caused by conservative mass transfer from the less massive component to the more massive *** addition,some variable components were discovered for FV CVn,including a rate of dp/dt =-1.13 ×10^-6 dyr^-1 accompanied by a cyclic oscillation with amplitude and period of 0.0069 d and 10.65 yr *** most likely explanation for the long-term decrease is angular momentum *** existence of an additional star is the most plausible explanation for the periodic variation.

关键词： stars:binaries:close stars:binaries:eclipsing stars:individual (FP Lyn, FV CVn and V354 UMa)

A novel supplement with yeast b-glucan, prebiotic, minerals and Silybum marianum synergistically modulates metabolic and inflammatory pathways and improves steatosis in obese mice

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Journal of Integrative Medicine 2021年第5期19卷 439-450页

作者： Victor Abou Nehmi Gilson Masahiro Murata Ruan Carlos Macêdo de Moraes Gabriely Cristina AlvesLima Danielle Araujo De Miranda Katrin Radloff Raquel Galvao Figuerêdo Costa Joyce de Cassia Rosade jesus Jéssica Alves De Freitas Nayara Izabel Viana Ruan Pimenta Katia Ramos Moreira Leite JoséPinhata Otoch Ana Flávia Marcal Pessoa Laboratory of Medical Investigation(LIM-26) Department of SurgeryUniversity of Sao Paulo Medical SchoolSao PauloSP 01246903Brazil Laboratory of Medical Investigation(LIM-29) Clinic Medical DepartmentUniversity of Sao Paulo Medical SchoolSao PauloSP 01246903Brazil Department of Physiology Escola Paulista de Medicina/Universidade Federal de Sao PauloSP 04023062Brazil Max Rubner-Institut Federal Research Institute of Nutrition and FoodKarlsruheBW 76131Germany Cancer and Inflammation Program Center for Cancer ResearchNational Cancer InstituteNational Institutes of HealthBethesdaMD 20892United States Laboratory of Medical Investigation(LIM-55) Urology DepartmentUniversity of Sao Paulo Medical SchoolSao PauloSP 01246903Brazil D'Or Institute for Research and Education RJ 22281-100Brazil Program in Anesthesiology Surgical Sciencesand Perioperative MedicineUniversity of Sao PauloSao PauloSP 01246903Brazil Brazilian Academic Consortium for Integrative Health(CABSIN) Natural Products CommitteeSao PauloSP 05449-070Brazil

Objective: To evaluate the synergic effects of a novel oral supplement formulation, containing prebiotics,yeast b-glucans, minerals and silymarin(Silybum marianum), on lipid and glycidic metabolism, inflammatory and mitochondrial proteins of the liver, in control and high-fat diet-induced obese ***: After an acclimation period, 32 male C57 BL/6 mice were divided into the following groups:nonfat diet(NFD) vehicle, NFD supplemented, high-fat diet(HFD) vehicle and HFD supplemented. The vehicle and experimental formulation were administered orally by gavage once a day during the last four weeks of the diet(28 consecutive days). We then evaluated energy homeostasis, inflammation, and mitochondrial protein expression in these groups of ***: After four weeks of supplementation, study groups experienced reduced glycemia, dyslipidemia,fat, and hepatic fibrosis levels. Additionally, proliferator-activated receptor-α, AMP-activated protein kinase-1α, peroxisome proliferator-activated receptor γ co-activator-1α, and mitochondrial transcription factor A expression levels were augmented;however, levels of inhibitor of nuclear factor-κB kinase subunit a and p65 nuclear factor-κB expression, and oxidative markers were reduced. Notably, the cortisol/C-reactive protein ratio, a well-characterized marker of the hypothalamic–pituitary–adrenal axis immune interface status, was found to be modulated by the ***: We discovered that the novel supplement was able to modify different antioxidant, metabolic and inflammatory pathways, improving the energy homeostasis and inflammatory status, and consequently alleviated hepatic steatosis.

关键词： Supplement Silymarin Prebiotic Obese Mice Steatosis Inflammation Mitochondrial biogenesis

High Purity Hydrogen Production by Metal Hydride System:A Parametric Study Based on the Lumped Parameter Model

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Journal of Wuhan University of Technology(Materials Science) 2021年第1期36卷 127-135页

作者： KOUA Koua Alain jesus TONG Liang YANG Tianqi XIAO Jinsheng School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Advanced Technology for Automotive Components Hubei Collaborative Innovation Center for Automotive Components Technology and Hubei Research Center for New Energy&Intelligent Connected VehicleWuhan University of TechnologyWuhan 430063China Reliability Engineering Institute School of Energy and Power EngineeringWuhan University of TechnologyWuhan 430070China Hydrogen Research Institute Universitédu QuébecàTrois-RivièresQC G9A 5H7Canada

The simulation of hydrogen purification in a mixture gas of hydrogen/carbon dioxide (H2/CO2) by metal hydride system was *** lumped parameter model was developed and *** validated model was implemented on the software Matlab/Simulink to simulate the present *** simulation results demonstrate that the purification efficiency depends on the external pressure and the venting *** increase in the external pressure and enough venting time makes it possible to effectively remove the impurities from the tank during the venting process and allows to desorb pure *** impurities are partially removed from the tank for low external pressure and venting time during the venting process and the desorbed hydrogen is *** parameters such as the overall heat transfer coefficient,solid material mass,supply pressure,and the ambient temperature influence the purification system in terms of the hydrogen recovery *** increase in the overall heat transfer coefficient,solid material mass,and supply pressure improves the hydrogen recovery rate while a decrease in the ambient temperature enhances the recovery rate.

关键词： hydrogen production hydrogen purification carbon dioxide metal hydride lumped parameter parametric study

Recent progress on bimetallic NiCo and CoFe based electrocatalysts for alkaline oxygen evolution reaction: A review

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Journal of Energy Chemistry 2022年第4期31卷 101-137页

作者： Gebrehiwet Abrham Gebreslase Maria Victoria Martínez-Huerta Maria jesus Lázaro Instituto de Carboquímica CSIC.Miguel LuesmaCastán 450018ZaragozaSpain Instituto de Catálisis y Petroleoquímica CSIC.Marie Curie 228049MadridSpain

The deployment of hydrogen as an energy carrier is found to be a vital alternative fuel for the future. It is expected that water electrolysis, powered by renewable energy sources, be able to scale-up hydrogen production. However, the reaction kinetic of oxygen evolution reaction(OER) is a sluggish process, which predominantly limits the efficiency of water electrolysis. This review recapitulates the recent progress and efforts made in the design and development of two selected earth-abundant bimetallic electrocatalysts(Ni Co and Co Fe) for alkaline OER. Each bimetal electrocatalyst is thoroughly outlined and discussed in five sub-sections, including bimetal(oxy) hydroxides, Layered double hydroxides(LDHs) structures,oxides, composites, alloy and nanostructured electrocatalysts, and assembled with ***, a brief introduction to an in situ/operando characterization techniques and advantages for monitoring the structure of the electrocatalysts is provided. Finally, a summary outlining the challenges and conceivable approaches to advance OER performance is highlighted and discussed.

关键词： Water electrolysis Oxygen evolution reaction Bimetallic electrocatalyst Nickel Cobalt and iron

MEC-based architecture for interoperable and trustworthy internet of moving things

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Digital Communications and Networks 2023年第1期9卷 270-279页

作者： jesus Sanchez-Gomez Rafael Marin-Perez Ramon Sanchez-Iborra Miguel Angel Zamora Department of Information and Communications Engineering University of MurciaMurciaSpain Odin Solutions S.L. MurciaSpain University Center of Defense San Javier Air Force BaseMurciaSpain

The expansion of the Internet of Moving Things(IoMT)leads to limitless and continuous working playgrounds exploited by highly dynamic end *** requires the adoption of multi-Radio Access Technologies(RATs)-based strategies to provide IoMT units with ubiquitous *** this end,the development of secure bootstrapping and authentication mechanisms is necessary to permit the secure operation of end *** the transmission and power limitations of these elements,current cryptographic solutions do not address these stringent *** that reason,in the study we present a Multi-Access Edge Computing(MEC)-based endto-end architecture that enables an efficient and secure authentication and key agreement between end devices and network servers over heterogeneous resource-limited networks such as the Low Power Wide Area Networks(LPWANs).Our proposal is based on the Authentication,Authorization,and Accounting(AAA)architecture and the recent Internet Engineering Task Force initiatives Static Context Header Compression and Low-Overhead *** results obtained from experimental tests reveal the validity of the proposal as it enables constrained IoMT devices to gain IPv6 connectivity as well as performs end-to-end secure authentication with notable reliability and controlled latency.

关键词： Internet of moving things LPWAN Authentication LO-CoAP-EAP SCHC

Mapping Between Charge-Dyon and Position-Dependent Mass Systems

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Communications in Theoretical Physics 2019年第10期71卷 1261-1266页

作者： Anderson L.de jesus Alexandre G.M.Schmidt Departamento de Fisica de Volta Redonda Instituto de Ciencias Exatas—Universidade Federal Fluminense

The primary purpose of this work is to reproduce the scenario composed of a charge-dyon system utilizing position-dependent effective mass(PDM) background in the non-relativistic and in the relativistic regimes. In the nonrelativistic case we substitute the exact charge-dyon eigenfunction into PDM Schr?dinger equation, in the Zhu-Kroemer parametrization, and then solve it for the mass distribution considering M = M(r). Analogously, in the relativistic case we study the Klein-Gordon equation for a position-dependent mass, and in this case, we are able to analytically solve the equation for M = M(r, θ).

关键词： position-dependent mass Schrodinger equation Klein-Gordon equation dyon

Visible Light Excitable SCN^- Selective Fluorescence Probe Derived from Thiophene

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Chinese Journal of Chemistry 2015年第10期33卷 1173-1177页

作者： Sudipta Das Sisir Lohar jesus Sanmartin Matalobos Debasis Das Department of Chemistry The University of Burdwan Burdwan 713104 West Bengal India Departamento de Qu'tmicalnorg'anica Facultade de Qutmica Avda. Das Ciencias s/n 15782 Santiago de Compostela Spain

An efficient fluorescence probe, 4-methyl-2,6-bis（（thiophen-2-ylmethylimino）methyl）phenol （DFPTMA） and its SCN adduct has been synthesized and characterized by different spectroscopic techniques like ^1H NMR,^13C NMR, QTOF-MS ES^＋, UV-Vis and FTIR spectroscopy. Single crystal X-ray structure of DFPTMA is reported. In presence of SCN-, DFPTMA exhibits significant fluorescence enhancement （λEx, 455 nm, λEm, 504 nm） in aqueous methanol （water-methanol, 1 ： 4, V/V, 0.1 mol/L HEPES buffer, pH 7.4）. Common bio-relevant anions viz. CH3COO^-, NO2, NO7, Cl^-, Br^-, I^-, SO4^2-, HSO4^-, N3^-, HAsO4^2-, Cr2O7^2-, H2PO4, ClO4^-, NCO^-, CN^-, CO3^2-, F^-, PO4^3-, S2-, HS- do not interfere in the recognition of SCN-. Lowest detection limit for SCN^- is 0.88 μmol/L with response time 〈5 min. The SCN assisted enhancement in emission intensity may be attributed to the formation of H-bond which enhances the rigidity of the molecular assembly.

关键词： visible light excitation SCN^- fluorescence thiophene derivative

Thorough Validation of a Rotor Fault Diagnosis Methodology in Laboratory and Field Soft-Started Induction Motors

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Chinese Journal of Electrical Engineering 2018年第3期4卷 66-72页

作者： jesus A.Corral-Hernandez Jose A.Antonino-Daviu Instituto Tecnologico de la Energia Universitat Politecnica de ValenciaValencia 46022Spain

Induction motors are the most widespread rotating electrical machines in *** maintenance of the motors is of crucial importance due to the fact that unexpected faults in those machines can lead to huge economic losses for the corresponding *** recent years,there is an increasing use of industrial induction motors operated by different types of drives,which have different *** them,the use of soft-starters has proliferated due to the inherent benefits provided by these drives:they damp the high starting currents,enabling the soft startup of the motors and avoiding undesirable commutation transients introduced by other starting *** spite of these advantages,they do not avoid the possible occurrence of rotor damages,one of the most common faults in this type of *** works have proposed predictive maintenance techniques that are aimed to diagnose the rotor condition in soft-started machines and even fewer have demonstrated the validity of their methods in real *** work presents,for the first time,the massive validation of a rotor fault diagnosis methodology in soft-started induction *** and laboratory and induction motors started under different types of soft-starters and with diverse rotor fault conditions are considered in the *** results prove the potential of the approach for the reliable assessment of the rotor condition in such machines.

关键词： Induction motors soft-starter fault diagnosis transient analysis rotor reliability fault detection wavelet

Calcium signaling primes RNA interference during viral infection

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Molecular Plant 2021年第10期14卷 1621-1622页

作者： jesus Sanchez Pardo Echevarria Bruno Pok Man Ngou The Sainsbury Laboratory University of East AngliaNorwich Research ParkNorwich NR47UHUK

Plants resist viral infection through multiple *** include physical barriers,activation of NUCLEOTIDE-BINDING LEUGINE-RICH REPEAT PROTEINS(NLRs),autophagy,biosyn-thesis of defense-related phytohormones,and RNA interference(RNAi).RNAI suppresses the expression of viral RNA and is conserved across several eukaryotic *** infection,RNA-DEPENDENT RNA POLYMERASES(RDRs)amplify viral RNA fragments into double-stranded RNAs(dsRNAs).

关键词： infection mechanisms viral