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Membranes of Polymer of Intrinsic Microporosity PIM-1 for Gas Separation:Modification Strategies and Meta-Analysis

Nano-Micro Letters 2025年第5期17卷 326-358页

作者： Boya Qiu Yong Gao Patricia Gorgojo Xiaolei Fan department of Chemical Engineering Faculty of Science and EngineeringThe University of ManchesterManchester M139PLUK Institute of Wenzhou Zhejiang UniversityWenzhou 325006People’s Republic of China Instituto de Nanociencia y Materiales de Aragon(INMA)CSIC-Universidad de Zaragoza Mariano Esquillor50018 ZaragozaSpain departamento de ingenieria Quimica y Tecnologias del Medio Ambiente Universidad de ZaragozaPedro Cerbuna 1250009 ZaragozaSpain Ningbo China Beacons of Excellence Research and Innovation Institute University of Nottingham Ningbo China211 Xingguang RoadNingbo 315048People’s Republic of China

Polymers of intrinsic microporosity(PIMs)have received considerable attention for making high-performance membranes for carbon dioxide separation over the last two decades,owing to their highly permeable porous ***,challenges regarding its relatively low selectivity,physical aging,and plasticisation impede relevant industrial adoptions for gas *** address these issues,several strategies including chain modification,post-modification,blending with other polymers,and the addition of fillers,have been developed and ***-1 is the most investigated PIMs,and hence here we review the stateof-the-arts of the modification strategies of PIM-1 critically and discuss the progress achieved for addressing the aforementioned challenges via ***,the development of PIM-1-based thin film composite membranes is commented as well,shedding light on their potential in industrial gas *** hope that the review can be a timely snapshot of the relevant state-of-the-arts of PIMs guiding future design and optimisation of PIMs-based membranes for enhanced performance towards a higher technology readiness level for practical applications.

关键词： Polymers of intrinsic microporosity(PIMs) PIM-1 Gas separation Meta-analysis Upper bound

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Symplectic feedback using Hamiltonian Lie algebra and its applications to an inverted pendulum

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控制理论与应用（英文版） 2013年第2期11卷 275-281页

作者： J. Lorca ESPIRO C. Munoz POBLETE departamento de Ciencias Fisicas Facultad de Ingenieria Ciencias y Administracion Universidad de La FronteraAvenida Francisco Salazar 01145 Casilla 54-D Temuco Chile departamento de ingenieria electrica Facultad de Ingenieria Ciencias y Administracion Universidad de La FronteraAvenida Francisco Salazar 01145 Casilla 54-D Temuco Chile

From the symplectic representation of an autonomous nonlinear dynamical system with holonomic con- straints, i.e., those that can be represented through a symplectic form derived from a Hamiltonian, we present a new proof on the realization of the symplectic feedback action, which has several theoretical advantages in demonstrating the uniqueness and existence of this type of solution. Also, we propose a technique based on the interpretation, construction and character- ization of the pull-back differential on the symplectic manifold as a member of a one-parameter Lie group. This allows one to synthesize the control law that governs a certain system to achieve a desired behavior; and the method developed from this is applied to a classical system such as the inverted pendulum.

关键词： Hamiltonian systems Symplectic structures Lie algebra Nonlinear dynamical systems Geometric con-trol

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Production of carbonaceous material from avocado peel for its application as alternative adsorbent for dyes removal

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Chinese Journal of Chemical Engineering 2016年第4期24卷 521-528页

作者： Carolyn Palma Lucia Lloret Antonio Puen Maira Tobar Elsa Contreras departamento de ingenieria Quimica Ambiental Universidad Tecnica Federico Santa Mafia Vicunia Mackenna 3939 Santiago Chile departamento de ingenieria Quimica Universidad de Santiago de Chile Alameda 3363 Santiago Chile

Adsorption processes have received special attention for contaminants removal thanks to their capability to gen- erate effluents with high quality as well as their simple design. In the current work, the agro-waste residue avo- cado peel is proposed to be used as alternative to conventional activated carbons whose use is sometimes restricted to high costs, upgraded by their exhausting after long term operations. The carbonization procedure was optimized and analyzed through factorial design and response surface methodology by evaluating temper- ature （400-900 ℃） and time （30-90 min） effects： optimal conditions were found at 900℃ and 65 min, gener- ating an adsorbent with 87.52 m2.g 1 of BET surface area, a mesopore volume of 74% and a zero point charge at 8.6. The feasibility of the carbonaceous material was proved for the removal of a variety of dyes by investigating substrate （10-50 mg.L 1） and solid （0.5-20 g.L-1） concentration effects and statistical significance： complete removal of Naphthol Blue Black and Reactive Black 5 was reached under optimal conditions （10 mg.L 1 and 20g.L 1 of dye and solid, respectively）, while Basic Blue 41 was eliminated by using 13.4 g. L- 1 of the adsorbent. Overall, dyes removal by adsorption on carbonized avocado peel is presented as a promising technology due to the low cost and easy availability of the precursor, as well as the straightforward generation, the satisfactory char- acteristics and the proved adsorption capacity of the adsorbent.

关键词： Avocado peelCarbonizationOptimizationAdsorptionDyes

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Kinematic analysis of flexible bipedal robotic systems

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Applied Mathematics and Mechanics(English Edition) 2024年第5期45卷 795-818页

作者： R.FAZEL A.M.SHAFEI S.R.NEKOO department of Mechanical Engineering Shahid Bahonar University of KermanKerman ***Iran departamento de ingenieria de Sistemas y Automatica Escuela Técnica Superior de IngenieriaUniversidad de SevillaSeville 41092Spain

In spite of its intrinsic complexities,the passive gait of bipedal robots on a sloping ramp is a subject of interest for numerous *** distinguishes the present research from similar works is the consideration of flexibility in the constituent links of this type of robotic *** is not a far-fetched assumption because in the transient(impact)phase,due to the impulsive forces which are applied to the system,the likelihood of exciting the vibration modes increases ***,the human leg bones that are involved in walking are supported by viscoelastic muscles and ***,for achieving more exact results,it is essential to model the robot links with viscoelastic *** this end,the Gibbs-Appell formulation and Newton's kinematic impact law are used to derive the most general form of the system's dynamic equations in the swing and transient phases of *** most important issue in the passive walking motion of bipedal robots is the determination of the initial robot configuration with which the system could accomplish a periodic and stable gait solely under the effect of gravitational *** extremely unstable nature of the system studied in this paper and the vibrations caused by the impulsive forces induced by the impact of robot feet with the inclined surface are some of the very serious challenges encountered for achieving the above-mentioned *** overcome such challenges,an innovative method that uses a combination of the linearized equations of motion in the swing phase and the algebraic motion equations in the transition phase is presented in this paper to obtain an eigenvalue *** solving this problem,the suitable initial conditions that are necessary for the passive gait of this bipedal robot on a sloping surface are *** effects of the characteristic parameters of elastic links including the modulus of elasticity and the Kelvin-Voigt coefficient on the walking stability of this type of

关键词： bipedal robot flexible link swing phase transient phase eigenvalue problem Kelvin-Voigt coefficient

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Anthropomorphism Indexes of the Kinematic Chain for Artificial Hands

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Journal of Bionic Engineering 2020年第3期17卷 501-511页

作者： Immaculada Llop-Harillo Antonio Pérez-González Javier Andrés-Esperanza Grupo de Biomecdnicay Ergonomia Departamento de Ingenieria Mecdnicay Construccidny Universitat Jaume I(UJI)Castelldn 12071Spain

Anthropomorphic hands have received increasing research interest in the fields of robotics and *** it is not yet clear how to evaluate their *** in the kinematic chain is essential to achieve both functionality and cosmesis.A few previous works have addressed the definition of anthropomorphism indexes,although they have some limitations in its *** this study,three different anthropomorphism indexes have been defined to compare the kinematic chain of artificial hands with that of the human *** indexes are based on the comparison of:(I)the parameters of the kinematic chain(dimensions,type of joints,orientations and ranges of motion),(2)the reachable workspace,and(3)common grasping *** artificial hands with different degrees of anthropomorphism have been compared using the three Anthropomorphism Indexes of the Kinematic Chain(AIKC).The results show a high correlation between the first and third AIKC for the hands *** second AIKC presents much lower values than the other two,although they are higher for hands that combine abduction/adduction and flexion/extension movements in the kinematic chain of each *** indexes can be useful during the initial stage of designing artificial hands or evaluating their anthropomorphism.

关键词： anthropomorphism grasping indexes kinematics multifingered hands

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Compatibility of early natural enemy introductions in commercial pepper and tomato greenhouses with repeated pesticide applications

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Insect Science 2020年第5期27卷 1111-1124页

作者： Beatriz Dader Ignacio Colomer Angeles Adan Pilar Medina Elisa Vinuela Unidad de Proteccion de Cultivos Escuela Tecnica Superior de Ingenieria AgronomicaAlimentaria y de Biosistemas(ETSIAAB)Universidad Polit^cnica de Madrid(UPM)MadridSpain departamento de ingenieria Rural Escuela Superior de IngenieriaUniversidad de AlmeriaAlmeriaSpain

Successful integrated pest management in protected crops implies an evalu-ation of the compatibility of pesticides and natural enemies(NE),as control strategies that only rely on one tactic can fail when pest populations exceed NE activity or pests become resistant to *** in Almeria(Spain),growers release NE prior to transplanting or early in the crop cycle to favor their settlement before pest arrival because this improves biocontrol efficacy,although it extends pesticide exposure *** pur-pose of this research was to evaluate the compatibility of two applications of pesticides with key NE in 2-year trials inside tomato and sweet pepper commercial greenhouses:Nesidiocoris tenuis(Reuter)(Hemiptera:Miridae),Orius laevigatus(Say)(Hemiptera:Anthocoridae)and Amblyseius swirskii(Athias-Henriot)(Acari:Phytoseidac).In tomato,flubendiamide and chlorantraniliprole(IOBC category 1)were compatible with ***,but chlorpyrifos.:methyl and spinosad(IOBC categories 2-3),which efectively reduced Tiuta absoluta(Meyrick)(Lepidoptera:Gelechidae)density,compromised its predatory *** sweet pepper,chlorantraniliprole(IOBC category 1)was the only pesticide compatible with *** while chlorantraniliprole,emamectin benzoate,spirote-tramat and pymetrozine were harmless(IOBC category 1)to Amblyseius swirskii,and sulfoxaflor slightly harmful(IOBC category 2)to this phytoseiid predator.

关键词： Amblyseius swirskii chemical control Frankliniella occidentalis Nesidiocoris tenuis Orius laevigatus Tuta absoluta

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Analysis and parameter extraction of memristive structures based on Strukov's non-linear model

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Journal of Semiconductors 2018年第12期39卷 106-113页

作者： A.Avila Garcia L.Ortega Reyes Centro de Investigacion y de Estudios Avanzados del Instituto Polit6cnico Nacional Departamento de Ingenieria ElectricaSeccion de Electronica del Estado SolidoMexico 07360Mexico

Diverse models have been proposed for explaining the electrical performance of memristive devices. In principle, the behavior of internal variables associated to each one could be extracted from experimental results. In a former work, thermally grown TiOmemristive structures were built and characterized to obtain the constitutive relationship(magnetic flux versus charge). The aim of this work is to continue that analysis by determining the microscopic parameters within the frame of a simple model. We use the already obtained memristance dependence of time and the basic expressions from the non-linear model proposed by Strukov et al. to compute the state-variable,the mobility of the doping species, the speed of the boundary between the doped and the undoped regions, the voltages and the electric fields on the distinct regions. The power dissipation and its time evolution are also presented. Moreover, a quite different window function from those formerly proposed, which was estimated from experimental data, is also determined. This information provides a straightforward picture of the ionic transport during one cycle of a square voltage waveform within the framework of this simple model. Finally, a quality factor is proposed as the key parameter for actual memristors viewed under the same model.

关键词： memristors parameter extraction non-linear model experimental window function

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First-principle calculations of magnetic properties of Ho_(6)(Fe,Mn)Bi_(2)compounds

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Rare Metals 2024年第11期43卷 6034-6047页

作者： Angel J.Garcia-Adeva Estibaliz Apinaniz Aritz Herrero Ivan R.Aseguinolaza Alberto Oleaga departamento de Fisica Aplicada Escuela de Ingenieria de V itoria-GasteizUniversidad del Pais V asco UPV/EHU01006 V itoria-GasteizSpain departamento de Fisica Aplicada Escuela de Ingenieria de BilbaoUniversidad del Pais V asco UPV/EHU48013 BilbaoSpain

The magnetic properties of Ho_(6)MnBi_(2)and Ho_(6)FeBi_(2)crystals are investigated by means of density functional *** materials are currently an active subject of research in the context of magnetic refrigeration applications since they exhibit a remarkable magnetocaloric *** this work,the equation of state,density of states and magnetic moments are calculated and compared with previous experimental results for these ***,the Curie temperatures for the paramagnetic to ferromagnetic phase transition observed in these systems are calculated from first *** the calculated quantities are in reasonable agreement with experimental data,which suggests that density functional theory could provide a reliable framework to theoretically investigate the magnetic properties of intermetallic ternary compounds.

关键词： Intermetallic compounds Rare earths Magnetic properties Magnetocaloric effect density functional theory Heisenberg model

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Photolysis of a mixture of anthracene and benzo[a] pyrene at ultra-trace levels in natural water with disinfection purposes

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Journal of Environmental Sciences 2020年第6期32卷 79-94页

作者： Ainhoa Rubio-Clemente Edwin Chica Gustavo A.Penuela Facultad de Ciencias de La Salud.Universidad Catolica de Murcia(UCAM) Murcia 30107Spain Grupo GDCON Facultad de IngenieriaSede de Investigaciones Universitarias(SIU)Universidad de Antioquia(UdeA)Medellín 050010Colombia Facultad de ingenieria Tecnologico de Antioquia-Institucion Universitaria(TdeA)Medellín 050034Colombia departamento de ingenieria Mecanica Facultad de IngenieriaUniversidad de Antioquia(UdeA)Medellín 050010Colombia

The photodegradation of anthracene(AN)and benzo[a]pyrene(BaP),two priority polycyclic aromatic hydrocarbons(PAHs),was examined at ultra-trace levels in surface water to elucidate their behaviour under several irradiance values and types of *** emitting flux and the spectrum of the lamps were found to develop a crucial role in AN and BaP degradation since removal efficiencies of the target contaminants higher than 99%were found after 15 min of irradiation under an ultraviolet C(UVC)irradiance of 0.63 mW/cm^2,corresponding to a fluence of 560.25 mJ/cm^*** the other hand,although ultraviolet A(UVA)lamps exhibited a higher irradiance compared to that of UVC lamps,they were not efficient for degrading the target *** removal kinetic studies corroborated these findings,being the AN elimination rate in surface water higher than that in deionized water at optimal operating *** potential was also measured.A rapid microbial load inactivation,in terms of total coliforms naturally contained in the water matrix studied,was evidenced within 15 min of treatment for the fluence ***,after 24 hr in the dark,a regrowth was ***,photolysis products more toxic than the parent compounds were found,which were not removed even by extending the treatment *** this regard,it can be concluded that the individual action of UVC light for removing AN and BaP with disinfection purposes is not an efficient treatment;therefore,the use of radiation in combination with other kinds of treatments is required.

关键词： Polycyclic aromatic hydrocarbon Photolysis Matrix constituent Intermediate product Disinfection Regrowth

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Semantic framework of event detection in emergency situations for smart buildings

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Digital Communications and Networks 2022年第1期8卷 64-79页

作者： Yudith Cardinale Gabriel Freites Edgar Valderrama Ana Aguilera Chinnapong Angsuchotmetee departamento de Computacidn Universidad Simon BolivarCaracasVenezuela Escuela de ingenieria Informatica Universidad de ValparaisoValparaisoChile Faculty of Science Prince of Songkla University Thailand

Multimedia Sensor Networks(MSNs)have enhanced the ability to analyze the environment and provide responses based on its current ***,MSNs are composed of scalar and multimedia sensors that have fixed ***,given the advancement of smart mobile device technologies,it is currently possible to dynamically integrate mobile sensors into *** this paper,we propose a formal platform to manage MSNs and the data gathered from them to detect complex *** main contributions include:M^(2)SSN-Onto,a Mobile and Multimedia Semantic Sensor Networks Ontology;Py-CEMiD,an engine for detecting complex events and generate reactions to them;a mobile device location engine to locate mobile sensors;and a proof-of-concept in the context of detecting emergency situations in smart *** scenarios are validated for emergency events,combining simulated sensor measurements with real measurements of mobile *** show complex events can be detected in near real time(less than 1 s).

关键词： Multimedia sensor network Semantic web Event processing Ontology Geolocalisation

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