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Optoelectronics Letters 2009年第3期5卷 194-197页

作者： Amal K Ghosh Moumita raul Department of Applied electronics and Instrumentation Engineering Netaji Subhas Engineering College Department of electronics and Communication Engineering Netaji Subhash Engineering College

Registers and counters are the most important devices in any system of *** this paper we have communicated the trinary registers and counters in modified trinary number(MTN) *** is suitable for the optical computing and other applications in multivalued logic *** the savart plate and spatial light modulator(SLM) based optoelectronic circuits have been used to exploit the optical tree architecture(OTA) in optical interconnection network.

关键词：多值逻辑系统空间光调制器光学计算机三元光电集成电路板光互连网络应用程序

Finite Size Effects in the Dynamics of Opinion Formation

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Communications in Computational Physics 2007年第2期2卷 177-195页

作者： raul Toral Claudio J.Tessone Instituto Mediterr´aneo de Estudios Avanzados(IMEDEA) CSIC-UIBEd.Mateu OrfilaCampus UIBE-07122 Palma de MallorcaSpain.

For some models of relevance in the social sciences we review some exam-ples in which system size plays an important role in the final outcome of the *** discuss the conditions under which changes of behavior can appear only when the number of agents in the model takes a finite *** changes of behavior can be related to the apparent phase transitions that appear in some physical *** show examples in the Galam's model of opinion transmission and the Axelrod's model of culture formation stressing the role that the network of interactions has on the main results of both ***,we present the phenomenon of system-size stochastic resonance by which a forcing signal(identified as an advertising agent)is optimally amplified by a population of the right(intermediate)*** work stresses the role that the system size has in the dynamics of social systems and the inappropriateness of taking the thermodynamic limit for these systems.

关键词： Dynamics of social systems finite size effects scaling laws.

Nuptial gifts and female fecundity in the neotropical katydid Conocephalus ictus （Orthoptera： Tettigonidae）

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Insect Science 2015年第1期22卷 106-110页

作者： Isabel Ortiz-Jimenez raul Cueva del Castillo Laboratorio de Ecologia UBIPRO UNAM FES Iztacala M6xico Edo. Mexico M6xico

In general, female fitness is greatly increased in gift-giving insects. In katydids, this nuptial gift consists of a gelatinous mass produced by accessory glands： the spermato- phylax, which is attached to the ampulla. During mating, males of the neotropical katydid Conocephalus ictus transfer a spermatophylax that is ingested by the females. Fecundity, egg-laying rate and longevity were higher in females that consumed the spermatophylax than in those that did not. Also, female receptivity turned off after mating. Females actively rejected other males by hitting them with their forelegs and moving away. Their refractory period lasted as long as 17 d. Only a few females accepted a 2nd mating and died a few days later. In C. ictus, spermatophylax consumption can be beneficial for both males and females. On one hand, the compounds in the spermatophylax or the ejaculate could prevent or delay females from copulating with rivals, thus avoiding sperm competition. On the other hand, such compounds can improve the females＇ opportunity to increase their lifespan and fecundity. Moreover, a rise in egg-laying rate may lower the risk of female prereproductive death caused by rapid oviposition. In any case, the boost in female egg laying might also be beneficial for males because their number of offspring increases.

关键词： female fitness katydid neotropic spermatophylax

Novel translational rat models of dopamine transporter deficiency

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Neural Regeneration Research 2018年第12期13卷 2091-2093页

作者： Damiana Leo Ilya Sukhanov raul R.Gainetdinov Department of Neurosciences University of Mons Institute of Pharmacology Pavlov Medical University Institute of Translational Biomedicine St. Petersburg State University

Dopamine （DA） is one of the brain＇s fundamental neurotransmitters. Despite the fact that the dopaminergic synapses constitute less than 1% of all brain synapses, DA is implicated in a number of critical physiological functions and in the pathogenesis of important psychiatric diseases such as schizophrenia, attention-deficit/hyperactivity disorder （ADHD）, Parkinson＇s disease （PD） and others.

关键词： DAT KO Novel translational rat models of dopamine transporter deficiency

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)

Localized Corrosion Characteristics of Nickel Alloys： A Review

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Acta Metallurgica Sinica(English Letters) 2017年第4期30卷 296-305页

作者： Helmuth Sarmiento Klapper Natalia S. Zadorozne raul B. Rebak Center for Materials Research Baker Hughes 29221 CelleGermany Instituto de Materiales de Misiones (IMAM) UNaMCONICET 3300 Posadas Argentina GE Global Research Schenectady NY 12309 USA

There are a great variety of commercial nickel alloys mainly because nickel is able to dissolve a large amount of alloying elements while maintaining a single ductile austenitic phase. Nickel alloys are generally designed for and used in highly aggressive environments, for example, those where stainless steels may experience pitting corrosion or environmentally assisted cracking. While nickel alloys are generally resistant to pitting corrosion in chloride-containing environments, they may be prone to crevice corrosion attack. Addition of chromium, molybdenum and tungsten increases the localized corrosion resistance of nickel alloys. This review on the resistance to localized corrosion of nickel alloys includes specific environments such as those present in oil and gas upstream operations, in the chemical process industry and in seawater service.

关键词： Nickel alloys Localized corrosion Oil and gas Seawater Chemical process industry

Metamodeling-based parametric optimization of DBD plasma actuation to suppress flow separation over a wind turbine airfoil model

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Acta Mechanica Sinica 2020年第2期36卷 260-274页

作者： Ramsankar Veerakumar Vishal raul Yang Liu Xiaodong Wang Leifur Leifsson Hui Hu Department of Aerospace Engineering Iowa State UniversityAmesIA 50010USA School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBeijingChina

While dielectric-barrier-discharge(DBD)based plasma actuation systems have been successfully demonstrated to suppress massive flow separation over wind turbine blades to reduce the transient aerodynamic loadings acting on the turbine blades,it is still a non-trivial task to establish a best combination of various operating parameters for a DBD plasma actuation system to achieve the optimized flow control *** the present study,a regression Kriging based metamodeling technique is developed to optimize the operating parameters of a DBD plasma actuation system for suppressing deep stall over the surface of a wind turbine blade section/airfoil *** data points were experimentally obtained by embedding a nanosecond-pulsed DBD(NS-DBD)plasma actuator at the leading edge of the airfoil *** applied voltage and frequency for the NS-DBD plasma actuation were used as the design variables to demonstrate the optimization *** highest possible lift coefficient of the turbine airfoil model at deep stalled angles of attack(i.e.,α?=?22°and 24°)were selected as the objective function for the *** was found that,while the metamodeling-based procedure could accurately predict the objective function within the bounds of the design variables with an uncertainty~?2%,a global accuracy level of~?97%was achieved within the whole design space.

关键词： Wind turbine aerodynamics Dielectric-barrier-discharge(DBD)plasma actuation Active flow control Wind turbine airfoil stall suppression

Prediction from Expert Demonstrations for Safe Tele-surgery

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International Journal of Automation and computing 2013年第6期10卷 487-497页

作者： Ashirwad Chowriappa raul Wirz Aditya Reddy Ashammagari Yong Won Seo Department of Urology Roswell Park Cancer Institute Department of Computer Science and Engineering The State University of New York Department of Mechanical and Aerospace Engineering The State University of New York

In this paper, we propose a new prediction from expert demonstration （PED） methodology to improve reliability and safety in tele-surgery. Data was collected from expert （clinician） demonstrations for the procedure of trocar insertion. We encoded a set of force, torque and penetration trajectories by using a Gaussian mixture model （GMM）. A generalization of these profiles and associated parameters were retrieved by Gaussian mixture regression （GMR）. We validated the proposed methodology for tele-robotic placement of the trocar in two stages. First, we tested the efficacy of the proposed PED approach for handling transmission error and latency. Our results showed that for the average case （12% packet error and 1070 loss of packet）, a 58.8~0 improvement in performance was obtained in comparison to using an extended Kalman filter. Next, we validated the methodology for surgical assistance on 15 participants. A haptic assistance mode was devised based on the proposed PED model to assist inexperienced operators to perform the procedure. The PED model was tested for instrument deviation, penetration force and penetration depth. Preliminary study results showed that participants with PED assistance performed the task with more consistency and exerted lesser penetration force than subjects without assistance.

关键词： Expert demonstration tele-surgery robot-assisted trocar insertion Gaussian mixture surgical assistance.

Photometric light curve solutions of three ultra-short period eclipsing binaries

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Research in Astronomy and Astrophysics 2020年第4期20卷 163-170页

作者： Francesco Acerbi raul Michel Carlo Barani Massimiliano Martignoni Lexter Fox-Machado Stazione Astronomica Betelgeuse Magnago 20020Italy Instituto de Astronomia Universidad Nacional Autonoma de MexicoApartado Postal 877C.P.22800 EnsenadaB.C.Mexico

We present the results of our study of the eclipsing binary systems CSS J112237.1+395219,LINEAR 1286561 and LINEAR 2602707 based on new CCD B,V,Rcand Iccomplete light *** ultra-short period nature of these stars,as reported by Drake et al.,is confirmed and the system’s periods are *** light curves were modeled using the 2003 version of the Wilson-Devinney *** necessary,cool spots on the surface of the primary component were introduced to account for asymmetries in the light *** a result,we found that CSS J112237.1+395219 is a W UMa type contact binary system belonging to W subclass with a mass ratio of q=1.61 and a shallow degree of contact of 14.8%where the primary component is hotter than the secondary one by 500 *** 1286561 and LINEAR2602707 are detached binary systems with mass ratios q=3.467 and q=0.987 *** detached systems are low-mass M-type eclipsing binaries with similar *** marginal contact,fill-out factor and temperature difference between components of CSS J112237.1+395219 suggest that this system may be at a key evolutionary state predicted by thermal relaxation oscillation(TRO)*** the estimated absolute parameters,we conclude that our systems share common properties with other ultrashort period binaries.

关键词： techniques:photometric stars:variables:Contact Binary stars:individual:CSS J112237.1+395219 LINEAR 1286561 and LINEAR 2602707

Seed loss before seed predation: experimental evidence of the negative effects of leaf feeding insects on acorn production

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Integrative Zoology 2018年第3期13卷 238-250页

作者： Tara CANelO Álvaro GAYTÁN Guillermo GONZÁLEZ-BORNAY raul BONAL Forest Research Group INDEHESAUniversity of ExtremaduraPlasenciaSpain DITEG Research Group University of Castilla-La ManchaToledoSpain CREAF Cerdanyola del VallèsCataloniaSpain

Insect herbivory decreases plant fitness by constraining plant growth,survival and reproductive *** studies on the effects of herbivory in trees rely on correlational inter-individual comparisons and could,thus,be affected by confounding factors linked to both herbivory and plant *** the Mediterranean Holm oak(Quercus ilex)as a study model,we followed an experimental approach in which leaf-feeding insects(mainly Lepidoptera caterpillars)were excluded from some shoots in all study *** subjected to herbivore exclusion exhibited lower defoliation rates and produced more acorns than control *** constrained shoot growth throughout the study period,but had no effect on the number of female flowers produced per *** production was,however,lower in control shoots due to their higher abortion rates,and also to their greater mortality risk during summer drought,as shoots with fewer leaves were less likely to *** reaction to herbivory inhibits certain physiological pathways involved in plant growth,which,together with the effects of physical damage,reduces the amount and efficiency of the photosynthetic *** increases their vulnerability to environmental stresses,such as water deficit,which limit resource *** is likely a key factor affecting oak regeneration,as it may be a significant source of seed loss prior to pre-dispersal acorn *** experimental studies could help to elucidate its effects in contrasting *** Mediterranean regions,the harsher droughts predicted by climate change models could worsen the effects of insect herbivory on oak reproductive output.

关键词： drought stress insect defoliation oak seed abortion shoot mortality