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Engineering 2024年第3期34卷 195-211页

作者： Jacopo Aguzzi Laurenz Thomsen Sascha Flögel Nathan J.Robinson Giacomo Picardi Damianos Chatzievangelou Nixon Bahamon Sergio Stefanni Jordi Grinyó Emanuela Fanelli Cinzia Corinaldesi Joaquin Del Rio Fernandez Marcello Calisti Furu Mienis Elias Chatzidouros Corrado Costa Simona Violino Michael Tangherlini roberto Danovaro Instituto de Ciencias del Mar(ICM-CSIC) Barcelona 08003Spain Stazione Zoologica Anton Dohrn Naples 80121Italy University of Gothenburg Göteborg 40530Sweden GEOMAR Helmholtz Centre for Ocean Research Kiel 24148Germany Fundación Oceanogràfic de la Comunitat Valenciana Valencia 46013Spain Royal Netherlands Institute for Sea Research(NIOZ) Den Burg Texel 1790 ABNetherlands Polytechnic University of Marche(UNIVPM) Ancona 60131Italy SARTI-MAR of the Universitat Politecnica de Catalunya(UPC) Vilanova i la Geltrú08800Spain Lincoln Institute for Agri-food Technology University of LincolnLincoln LN22LGUK Engitec Systems International Limited Limassol 3083Cyprus Consiglio per la Ricerca in Agricoltura e L’analisi Dell’economia Agraria(CREA) Centro di Ricerca Ingegneria e Trasformazioni AgroalimentariMonterotondo 00015Italy

The United Nations(UN)’s call for a decade of“ecosystem restoration”was prompted by the need to address the extensive impact of anthropogenic activities on natural *** ecosystem restoration is increasingly necessary due to increasing habitat degredation in deep waters(>200 m depth).At these depths,which are far beyond those accessible by divers,only established and emerging robotic platforms such as remotely operated vehicles(ROVs),autonomous underwater vehicles(AUVs),landers,and crawlers can operate through manipulators and multiparametric sensor arrays(e.g.,optoacoustic imaging,omics,and environmental probes).The use of advanced technologies for deep-sea ecosystem restoration can provide:①high-resolution three-dimensional(3D)imaging and acoustic mapping of substrates and key taxa,②physical manipulation of substrates and key taxa,③real-time supervision of remote operations and long-term ecological monitoring,and④the potential to work ***,we describe how robotic platforms with in situ manipulation capabilities and payloads of innovative sensors could autonomously conduct active restoration and monitoring across large spatial *** expect that these devices will be particularly useful in deep-sea habitats,such as①reef-building cold-water corals,②soft-bottom bamboo corals,and③soft-bottom fishery resources that have already been damaged by offshore industries(i.e.,fishing and oil/gas).

关键词： Ecosystem restoration Robotic manipulation Acoustic tracking Fishery resources Artificial reefs

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Is dual therapy the correct strategy in frail elderly patients with atrial fibrillation and acute coronary syndrome?

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Journal of Geriatric Cardiology 2020年第1期17卷 51-57页

作者： Alessio Menditto roberto Antonicelli Cardiology Unit Italian National Research Centre on Aging

Atrial fibrillation(AF)is a very common arrhythmia in clinical *** incidence and prevalence are age-related and are growing in the last *** is a risk factor also for coronary artery disease(CAD),and with the evolution of preventive care,the first event(acute coronary syndrome(ACS)or percutaneous coronary intervention(PCI))takes place at a later *** elderly patients with AF and CAD undergo ACS or PCI,they have indication to assume triple *** therapy(oral anticoagulation(OAC)plus dual antiplatelet therapy(DAPT))exposes patients to high bleeding *** the last 10 years,several clinical trials have tested dual therapy(OAC plus single antiplatelet therapy)in AF patients who undergo ACS or elective *** trial has tested warfarin+clopidogrel against triple *** AF-PCI trial has tested low-dose rivaroxaban+P2Y12 inhibitor or very low-dose rivaroxaban+DAPT against standard triple therapy with ***-DUAL PCI trial has tested two doses of dabigatran+P2Y12 inhibitor against standard triple therapy with *** trial has tested apixaban against warfarin both in dual therapy with P2Y12 inhibitor and in triple therapy with a P2Y12 inhibitor and ***-AF PCI,last published study,has tested edoxaban+P2Y12 inhibitor against triple *** these trials show dual therapy reduces significantly bleeding risk than triple *** this paper,we analyze these clinical trials to understand if dual therapy results can be applied to elderly patients and what is probably the better approach in elderly AF patients undergo to ACS or PCI.

关键词： Acute coronary syndrome Atrial fibrillation Dual therapy Oral anticoagulation The elderly

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Shale gas reservoirs: Theoretical, practical and research issues

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Petroleum Research 2016年第1期1卷 10-26页

作者： roberto Aguilera Schulich School of Engineering University of CalgaryCalgaryCanada

Shale gas reservoirs are found all over the *** endowment worldwide is estimated at 10,000 tcf by the GFREE team in the Schulich School of Engineering at the University of *** shale gas work and production initiated successfully in the Unites States and extended to Canada will have application,with modifications,in several other countries in the ***‘modifications’qualifier is important as each shale gas reservoir should be considered as a research project by itself to avoid fiascos and major financial *** gas reservoirs are best represented by at least quadruple porosity *** of the production obtained from shale reservoirs is dominated by diffusion *** approximate boundary between viscous and diffusion-like flow is estimated with Knudsen *** flow is present,for example,when the architecture of the rock is dominated by mega pore throat,macro pore throat,meso pore throat and sometimes micro pore *** flow on the other hand is observed at the nano pore throat *** process speed concept has been used successfully in conventional reservoirs for several ***,the concept discussed in this paper for tight gas and shale gas reservoirs,with the support of core data,has been developed only recently,and permits differentiating between viscous and diffusion dominated *** is valuable,for example,in those cases where the formation to be developed is composed of alternating stacked layers of tight sands and shales,or where there are lateral variations due to facies *** approach to develop the concept of a super-giant shale gas reservoir is presented as well as a description of GFREE,a successful research program for tight *** paper closes with examples of detailed original gas-in-place(OGIP)calculations for 3 North American shale gas reservoirs including free gas in natural fractures and the porous network within the organic matter,gas in the non-organic matter,adsorbed gas,a

关键词： shale gas reservoirs process or delivery speed quadruple porosity model Knudsen number pore throat level

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A stratigraphical-geochemical study on the Chaco Paraná continental rift basin—An approach study based on regional sedimentology and drill-hole core analyses, South América

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Chinese Journal Of Geochemistry 2006年第3期25卷 195-215页

作者： roberto Toga Departamento de Geociencias. Facultad de Ingenierta. Universidad Nacional del Nordeste Avda. Las Heras 727 H3500C01. Resistervcia Chaco Argentina

This paper is focused on a geologic “regional rift basin system pattern” and its stratigraphical-geochemical relationship. This is mainly based on the littoral shallow marine sedimentary succession paleogeography and deposits. These successions characterize the large extensional intracratonic Chaco Paraná Basin rift system. The basin is located in South America west of the Brazilian Shield. The analyzed rift basin system evolved from the Upper Cretaceous (Late Campanian-Senonian-Maastrichtian-Early Paleocene) to Quaternary time. The siliciclastic littoral shallow marine successions were deposited from Early Senonian-Maastrichtian to Late Miocene during three main successive littoral shallow marine transgressions of continental extension.; These transgressions happened over the wide pediplanized terrains of South America. These lands exist west of the more positive areas, between the Brazilian Shield and the foreland massifs that were settled in the more westernwards areas. Later, these regional foreland massifs were coupled and raised to the Andean Orogen Belt during the last 5 million years.; The extensive intracratonic pediplanized low topographic relief areas were the reservoirs of siliciclastic littoral shallow marine succession deposits during the three successive widespread vast continental littoral shallow marine transgressions.; The first transgression began at the Latest Campanian-Senonian and/or Early Maastrichtian time. After this episode, the sedimentary depositional systems continued during the Cenozoic until the Latest Miocene. These successions constitute a major allostratigraphic unit. The limit with underlying units is the regional unconformity between the regional volcanic event (Jurassic-Cretacic and interleaved eolianite sandstones) at the base and the undifferentiated Quaternary sediments (called as the Pampeano and Post-Pampeano Formations sensu lato). Based on many facies analyses there had been checked out different levels in the eustatic sea

关键词：地层学地球化学古地理学裂谷盆地白垩纪新生界阿根廷

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Geochemistry and Genesis of the Pampean and Post-Pampean Formations (Late Pleistocene-Holocene), Central and Northern Argentina Pampas and Its Adjacent Region—An Approaching Case Study

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Chinese Journal Of Geochemistry 2004年第3期23卷 220-237页

作者： roberto Torra Departamento de Geociencias. Facultad de Ingeniería. Universidad Nacional del Nordeste. Avda. Las Heras St. No. 727 H3500COI. Resistencia Chaco Argentina

Littoral siliciclastic shallow marine horizontal conformable beds (a heterolithic succession), Middle to Late Miocene, outcropping in northeastern Argentina (Ituzaingó Formation) and overlying transitional conformable horizontal regolithic mantle-rock bed derived from them (the Pampean and Post-Pampean Formations), were geochemically analyzed. The focus of this study is placed on the application of geochemical parameter and signature analyses related with the aforementioned geological units, which are of subcontinental extension into South America. The encountered results show an outstandingly similar geochemical behaviour between them. The main conclusion is that regolithic mantle-rock beds were derived from the littoral shallow marine mudstone (silty-argillaceous) beds. This is in oposition to previous aeolian processes proposed early in the 50’s and later. These mudstone beds constitute important sections of the littoral shallow marine sequence beds (outcropping HST parasequence). Such regolitization proposed for the Pampean and Post-Pampean Formations predominantly developed in-situ during the Late Pleistocene and Holocene. The main erosional and mobilized agents were the surface free water (pluvial, fluvial and laminar water sheets) and vadose water. So, the wind flows and/or the immense air flow hurricanes are of insignificant sedimentological influence. Otherwise, there is not a proved appropiate sandy-silty reservoir for a reasonable support of the “aeolian hypothesis”, as well as clear aeolian structures settled in the regolithic mantle-rock bed. In spite of these lines of equality textural-structural evidence, the geochemical values for both major elements and trace elements, demonstrate that the Miocene heterolithic marine succession was the mother rock of the overlying regolithic mantle-rock bed, which was formed as an in-situ mantle-rock bed.

关键词：地球化学沉积环境南美大草原洪积世全新世阿根廷东北部地区

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A Technique for High-Order Treatment of Diffusion Terms in Semi-Lagrangian Schemes

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Communications in Computational Physics 2010年第7期8卷 445-470页

作者： roberto Ferretti Dipartimento di Matematica Universita di Roma TreL.go S.Leonardo Murialdo100146 RomaItaly

We consider in this paper a high-order,semi-Lagrangian technique to treat possibly degenerate advection-diffusion equations,which has been proposed in similar forms by various *** scheme is based on a stochastic representation formula for the solution,which allows to avoid the splitting between advective and diffusive part of the evolution operator.A general theoretical analysis is carried out in the paper,with a special emphasis on the possibility of using large Courant numbers,and numerical tests in one and two space dimensions are presented.

关键词： Advection-diffusion equations stochastic representation method of characteristics semi-Lagrangian schemes high-order schemes convergence

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A Design Concept and Kinematic Model for a Soft Aquatic Robot with Complex Bio-mimicking Motion

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Journal of Bionic Engineering 2022年第1期19卷 16-28页

作者： Shokoofeh Abbaszadeh roberto Leidhold Stefan Hoerner Institute of Electrical Power Systems Department of Electrical Engineering and Information TechnologyOtto-Von-Guericke University of MagdeburgUniversitätsplatz 239106MagdeburgGermany Institute of Fluid Dynamics and Thermodynamics Department of Process and Systems EngineeringOtto-Von-Guericke University of MagdeburgUniversitätsplatz 239106MagdeburgGermany

Fish mortality assessments for turbine passages are currently performed by live-animal testing with up to a hundred thousand fish per year in Germany.A propelled sensor device could act as a fish *** this context,the study presented here investigates the state of the art via a thorough literature review on propulsion systems for aquatic *** evaluation of propulsion performance,weight,size and complexity of the motion achievable allows for the selection of an optimal concept for such a fish mimicking device carrying the *** the second step,the design of a bioinspired soft robotic fish driven by an unconventional drive system is *** is based on piezoceramic actuators,which allow for motion with five degrees of freedom(DOF)and the creation of complex bio-mimicking body motions.A kinematic model for the motion’s characteristics is developed,to achieve accurate position feedback with the use of strain *** measurements validate the complex deformation of the body and deliver the basis for the calibration of the kinematic ***,it can be shown,that the calibrated model presented allows the tracking of the deformation of the entire body with an accuracy of 0.1 mm.

关键词： Unconventional drive system Biologically inspired robots Biomimetics Flexible robots

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Antecedent Precipitation Index to Estimate Soil Moisture and Correlate as a Triggering Process in the Occurrence of Landslides

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International Journal of Geosciences 2024年第1期15卷 70-86页

作者： Marcio Augusto Ernesto De Moraes Walter Manoel Mendes Filho Rodolfo Moreda Mendes Cassiano Antonio Bortolozo Daniel Metodiev Marcio roberto Magalhães De Andrade Harideva Marturano Egas Tatiana Sussel Gonçalves Mendes Luana Albertani Pampuch CEMADEN - National Centre for Monitoring and Early Warnings of Natural Disasters General Coordination of Research and Development S&#227o José dos Campos Brazil Faculty of Science and Technology Goias Federal University Aparecida de Goi&#226nia Brazil Institute of Science and Technology S&#227o Paulo State University (Unesp) S&#227o José dos Campos Brazil

Landslides are highly dangerous phenomena that occur in different parts of the world and pose significant threats to human populations. Intense rainfall events are the main triggering process for landslides in urbanized slope regions, especially those considered high-risk areas. Various other factors contribute to the process;thus, it is essential to analyze the causes of such incidents in all possible ways. Soil moisture plays a critical role in the Earth’s surface-atmosphere interaction systems;hence, measurements and their estimations are crucial for understanding all processes involved in the water balance, especially those related to landslides. Soil moisture can be estimated from in-situ measurements using different sensors and techniques, satellite remote sensing, hydrological modeling, and indicators to index moisture conditions. Antecedent soil moisture can significantly impact runoff for the same rainfall event in a watershed. The Antecedent Precipitation Index (API) or “retained rainfall,” along with the antecedent moisture condition from the Natural Resources Conservation Service, is generally applied to estimate runoff in watersheds where data is limited or unavailable. This work aims to explore API in estimating soil moisture and establish thresholds based on landslide occurrences. The estimated soil moisture will be compared and calibrated using measurements obtained through multisensor capacitance probes installed in a high-risk area located in the mountainous region of Campos do Jordão municipality, São Paulo, Brazil. The API used in the calculation has been modified, where the recession coefficient depends on air temperature variability as well as the climatological mean temperature, which can be considered as losses in the water balance due to evapotranspiration. Once the API is calibrated, it will be used to extrapolate to the entire watershed and consequently estimate soil moisture. By utilizing recorded mass movements and comparing them with AP

关键词： Landslides Antecedent Precipitation Index Soil Moisture Threshold Water Balance

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The Impact of Human Resource Management on University Development

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Proceedings of Business and Economic Studies 2024年第1期7卷 231-236页

作者： Zhangwu Tian roberto M.Arguelles Graduate School Angeles University FoundationAngeles 2009Philippines

As competition in the education industry intensifies and the knowledge economy evolves,the significance of Human Resource Management(HRM)in university *** study aims to explore how HRM affects the sustainable development and competitiveness improvement of *** article begins with a theoretical analysis to define the concept of HRM and its particular relevance within university *** subsequent analysis examines the multi-dimensional framework of university development,encompassing its connotation,goals,and key influencing *** article further elaborates on the positive effects of HRM on university teaching quality,scientific research capabilities,organizational culture,and social *** this basis,the main challenges currently faced by university HRM are discussed,such as talent mobility,institutional constraints,resource limitations,and internationalization ***,optimization strategies are proposed,including building a scientific human resources system,enhancing talent training and development,fostering diversity among teaching staff,and improving decision-making efficiency and *** conclusions of this study aim to provide strategic insights for university education managers to better utilize human resource advantages and promote the comprehensive and sustainable development of universities.

关键词： Human resources management University education Competitiveness Talent Development

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A Geometrical Approach to Compute Upper Limb Joint Stiffness

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Computer Modeling in Engineering & Sciences 2020年第4期123卷 23-47页

作者： Davide Piovesan roberto Bortoletto Biomedical Industrial and Systems EngineeringGannon University109 University SquareEriePA16541USA 2221e Ltd. Piazza dell’Artigianato1035031 Abano Terme(PD)Italy

Exoskeletons are designed to control the forces exerted during the physical coupling between the human and the *** the human is an active system,the control of an exoskeleton requires coordinated action between the machine and the load so to obtain a reciprocal *** in the control loop can be modeled as active mechanical loads whose stiffness is continuously *** direct measurement of human stiffness is difficult to obtain in real-time,thus posing a significant limitation to the design of wearable robotics ***(EMG)recordings can provide an indirect estimation of human muscle force and stiffness,but current methods for the acquisition of the signals limit their use and *** work proposes a hybrid method for the estimation of upper limb joint stiffness during reaching movements that combines EMG-driven muscle models and constrained *** these two stages process,we estimated an optimal joints’stiffness bounded in a physiologically sound variability *** information is crucial when designing exoskeletons user interfaces in which the limb stiffness is an integral part of the control ***-to-point human reaching movements were analyzed to reconstruct the joint stiffness of the upper *** accurate 3D model of the arm,encompassing all bones from the hand to the scapula and the majority of the upper limb muscles,was developed to represent the sliding center of rotation of the joints.A well-posed parallel mechanism between the skeleton and the configuration of the tracking markers was ***,the muscles’force and joint stiffness were calculated using a generalized pseudo-inversion of the Jacobian transformation between the muscles and Cartesian *** maximal and minimal forces exertable by the muscles were set as the boundary condition for the generalized pseudo-inverse by means of a state-of-the-art muscle model.

关键词： Stiffness inverse problem force method constrained optimization EMG.

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