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Modeling considerations in seismic assessment of RC bridges using state-of-practice structural analysis software tools

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Frontiers of Structural and Civil Engineering 2018年第1期12卷 109-124页

作者： Ricardo MONTEIRO miguel ARAUJO Raimundo DELGADO Mario o MARQUES School of Advanced Studies IUSS Pavia Italy Department of Civil Engineering Faculty of Engineering University of Porto Portugal

The increasing awareness of the general society toward the seismic safety of structures has led to more restrictive performance requirements hence, many times, to the need of using new and more accurate methods of analysis of structures. Among these, nonlinear static procedures are becoming, evermore, the preferred choice of the majority of design codes, as an alternative to complete nonlinear time-history analysis for seismic design and assessment of structures. The many available software tools should therefore be evaluated and well understood, in order to be easily and soundly employed by the practitioners. The study presented herein intends to contribute to this need by providing further insight with respect to the use of commonly employed structural analysis software tools in nonlinear analysis of bridge structures. A comparison between different nonlinear modeling assumptions is presented, together with the comparison with real experimental results. Furthermore, alternative adaptive pushover procedures are proposed and applied to a case study bridge, based on a generic plastic hinge model. The adopted structural analysis program proved to be accurate, yielding reliable estimates, both in terms of local plastic hinge behavior and global structural behavior.

关键词： nonlinear analysis pushover RC bridges structural modelling software

Bandgap-tunable lateral and vertical heterostructures based on monolayer Mo1-xWxS2 alloys

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Nano Research 2015年第10期8卷 3261-3271页

作者： Yu Kobayashi Shohei mori Yutaka Maniwa Yasumitsu Miyata DepartmentofPhysics TokyoMetropolitanUniversityHachiojiTokyo192-0397Japan JST PRESTOKawaguchiSaitama332-0012Japan

The fabrication of heterostructures of two-dimensional semiconductors with specific bandgaps is an important approach to realizing the full potential of these materials in electronic and optoelectronic devices. Several groups have recently reported the direct growth of lateral and vertical heterostructures based on monolayers of typical semiconducting transition metal dichalcogenides （TMDCs） such as WSe2, MoSe2, WS2, and MoS2. Here, we demonstrate the single-step direct growth of lateral and vertical heterostructures based on bandgap-tunable Mo1-xWxS2 alloy monolayers by the sulfurization of patterned thin films of WO3 and MoO3. These patterned films are capable of generating a wide variety of concentration gradients by the diffusion of transition metals during the crystal growth phase. Under high temperatures, this leads to the formation of monolayer crystals of Mo1-xWxS2 alloys with various compositions and bandgaps, depending on the positions of the crystals on the substrates. Heterostructures of these alloys are obtained through stepwise changes in the ratio of W/Mo within a single domain during low-temperature growth. The stabilization of the monolayer Mo1-xWxS2 alloys, which often degrade even under gentle conditions, was accomplished by coating the alloys with other monolayers. The present findings demonstrate an efficient means of both studying and optimizing the optical and electrical properties of TMDC-based heterostructures to allow use of the materials in future device applications.

关键词： transition metaldichalcogenide Mo1-xWxS2 alloy heterostructure thin-film sulfurization photoluminescence stability

Predicting stable crystalline compounds using chemical similarity

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npj Computational Materials 2021年第1期7卷 99-107页

作者： Hai-Chen Wang Silvana Botti miguel A.L.Marques Institut für Physik Martin-Luther-Universität Halle-Wittenberg06120 Halle(Saale)Germany Institut für Festkörpertheorie und-Optik Friedrich-Schiller-Universität Jena and European Theoretical Spectroscopy FacilityMax-Wien-Platz 107743 JenaGermany

We propose an efficient high-throughput scheme for the discovery of stable crystalline *** approach is based on the transmutation of known compounds,through the substitution of atoms in the crystal structure with chemically similar *** concept of similarity is defined quantitatively using a measure of chemical replaceability,extracted by data-mining experimental *** this way we build 189,981 possible crystal phases,including 18,479 that are on the convex hull of *** resulting success rate of 9.72%is at least one order of magnitude better than the usual success rate of systematic high-throughput calculations for a specific family of materials,and comparable with speed-up factors of machine learning filtering *** a characterization of the set of 18,479 stable compounds,we calculate their electronic band gaps,magnetic moments,and *** approach,that can be used as a filter on top of any high-throughput scheme,enables us to efficiently extract stable compounds from tremendously large initial sets,without any initial assumption on their crystal structures or chemical compositions.

关键词： stability similarity crystalline

Natural variation in maize ZmLecRK1 fine-tunes co-receptor interactions to boost immunity

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Molecular Plant 2024年第12期17卷 1797-1799页

作者： miguel-Ángel Torres Lucía Jordá Centro de Biotecnología y Genómica de Plantas Universidad Politécnica de Madrid(UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria(INIA/CSIC)Campus de Montegancedo UPM28223 Pozuelo de Alarcón(Madrid)Spain Departamento de Biotecnología-Biología Vegetal Escuela Técnica Superior de Ingeniería AgronómicaAlimentaría y de BiosistemasUPM28040 MadridSpain

Pattern recognition receptors(PRRs)are integral to plant immunity,functioning as the first line of defense against *** these,receptor kinases(RKs)play a critical role in recognizing external signals and initiating immune *** studies by Li et al.(2024)have identified the G-type lectin RK ZmLecRK1 in maize as essential for resistance to Pythium aphanidermatum and other fungal pathogens.A key finding is that a resistant variant of ZmLecRK1,which carries an alanine at position 404,has emerged in maize,while the ancestral form,with a serine at this position,is conserved across most *** amino acid substitution significantly influences the interaction with the co-receptor BRASSINOSTEROID INSENSITIVE 1-ASSOCIATED RECEPTOR KINASE 1(BAK1),enhancing immune complex formation and subsequent defense *** work underscores the importance of genetic variation in enhancing disease resistance,offering potential strategies for crop improvement through targeted genetic modification.

关键词： immunity offering maize

Uniqueness Theorems of Entire Functions with Shared-set in an Angular Domain

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Acta Mathematica Sinica,English Series 2008年第11期24卷 1925-1934页

作者： Wei Chuan LIN Seiki mori Hong Xun YI Department of Mathematics Fujian Normal University Fuzhou 350007 P. R. China Department of Mathematical Sciences Faculty of Science Yamagata University Yamagata990-8560 Japan Department of Mathematics Shandong University Ji'nan 250100 P. R. China

There have been lots of papers on the uniqueness theory of entire functions concerning shared-sets in the whole complex plane. However, it seems that the uniqueness theory in an angular domain is not widely investigated. In this paper, we study the uniqueness of entire functions concerning shared-sets in an angular domain instead of the whole complex plane, and we supply examples to show that Theorem 1 is sharp.

关键词： shared-set uniqueness entire function angular domain

Rotational Motions Excited by Vertical Harmonic Motions

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Transactions of Nanjing University of Aeronautics and Astronautics 2018年第1期35卷 51-57页

作者： Tadokoro Chiharu Kadowaki Kei mori Hiroki Nagamine Takuo Department of Mechanical Engineering Saitama University Department of Mechanical Engineering Kyushu University

Rotation of a pair of wings was driven by the vertical harmonic motion of a pin inserted into the center hole of the *** elucidate the mechanism by which the rotational motion of the wings was excited,the relationship between the wings and the pin was examined by tracking their motions using both displacement measurements and high-speed *** motion modes occurred in this study were categorized into five types:slipping,rolling,jumping(without eccentricity),jumping(with eccentricity),and *** the case that the hole of the wings was located at a distance from the center of the wings,referred to as″with eccentricity,″the slipping,jumping(with eccentricity),and non-rotation modes *** experimental results showed that the mechanism of the jumping(with eccentricity)was different from that of the other modes(slipping,rolling,jumping(without eccentricity)),which are well known to be driven by the periodical reaction of the wings against the vertical vibration of the *** was found that the jumping(with eccentricity)was driven by the non-periodical force with the collision between the wing hole and the pin.

关键词： motion transformation rotation vibration hula-hoop

Application of artificial intelligence in the diagnosis and treatment of hepatocellular carcinoma: A review

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World Journal of Gastroenterology 2020年第37期26卷 5617-5628页

作者： miguel Jimenez Perez Rocio Gonzalez Grande UGC de Aparato Digestivo Unidad de Hepatologia-Trasplante HepaticoHospital Regional Universitario de MalagaMalaga 29010Spain

Although artificial intelligence(AI)was initially developed many years ago,it has experienced spectacular advances over the last 10 years for application in the field of medicine,and is now used for diagnostic,therapeutic and prognostic purposes in almost all *** application in the area of hepatology is especially relevant for the study of hepatocellular carcinoma(HCC),as this is a very common tumor,with particular radiological characteristics that allow its diagnosis without the need for a histological ***,the interpretation and analysis of the resulting images is not always easy,in addition to which the images vary during the course of the disease,and prognosis and treatment response can be conditioned by multiple *** vast amount of data available lend themselves to study and analysis by AI in its various branches,such as deeplearning(DL)and machine learning(ML),which play a fundamental role in decision-making as well as overcoming the constraints involved in human *** is a form of AI based on automated learning from a set of previously provided data and training in algorithms to organize and recognize *** is a more extensive form of learning that attempts to simulate the working of the human brain,using a lot more data and more complex *** review specifies the type of AI used by the various ***,welldesigned prospective studies are needed in order to avoid as far as possible any bias that may later affect the interpretability of the images and thereby limit the acceptance and application of these models in clinical *** addition,professionals now need to understand the true usefulness of these techniques,as well as their associated strengths and limitations.

关键词： Artificial intelligence Machine learning Hepatocellular carcinoma Diagnosis Treatment Prognosis

Moxibustion Promotes Formation of Granulation in Wound Healing Process through Induction of Transforming Growth Factor-β in Rats

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Chinese Journal of Integrative Medicine 2020年第1期26卷 26-32页

作者： Hiroshi Kawanami Hirohisa Kawahata Hiroko-Miyuki mori Motokuni Aoki Graduate School of Health Sciences Morinomiya University of Medical Sciences

Objective:To examine the effect of moxibustion on the wound healing process and its mechanism using a rat wound ***:Sixty male Sprague-Dawley rats were randomly divided into a sham-treated group(n=30,wound surgery only)and a moxibustion group(n=30,wound treated with moxibustion).Circular fullthick ness skin wounds were produced in *** was applied to the edge of wound and was continued on alternating days till 14 days after surgery,followed by measurement of wound *** of collagens,prolyl-4-hydroxylase(P4H)and transtorming growth factor-β(TGF-β)were evaluated by histochemical study and real-time polymerase chain ***:The size of the wound lesion was significantly reduced in rats treated with moxibustion as compared to that in sham-treated rats at 4-10 days after wounding(P<0.01).Moxibusti on stimulated mRNA expressi on of collage ns at 4 days(P<0.01),but not at 7 days,accompa nied by enhanced proliferation of P4H-positive *** importanee,expression of TGF-β in tissue from the wound lesio n treated with moxibusti on was sign ifica ntly in creased as compared to that in sham-treated rats at 4 days(P<0.01 or P<0.05),but not at 7 ***:The treatment with moxibustion promoted the wound healing process in the early phase through proliferation of fibroblasts and rapid formation of granulation,possibly mediated by induction of TGF-β which is a key molecule in the physiological process of wound *** can be expected to be effective as complementary treatment for intractable ulcers.

关键词： compleme ntary and alter native medicine moxibusti on wound healing granulation tran storming growth factor-β collagen

RECENT ADVANCES IN HYDRATE-BASED TECHNOLOGIES FOR NATURAL GAS STORAGE——A REVIEW

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化工学报 2003年第z1期54卷 1-17页

作者： Yasuhiko H.mori Department of Mechanical Engineering Keio University 3-14-1 Hiyoshi Kohoku-ku Yokohama 223-8522 Japan

Interest in the possibility of storing and transporting natural gas in the form of clathrate hydrates has been increasing in recent years, particularly in some gas-importing and exporting *** technologies necessary for realizing this possibility may be classified into those relevant to the four serial processes (a) the formation of a hydrate, (b) the processing (dewatering, pelletizing, etc. ) of the formed hydrate, (c) the storage and transportation of the processed hydrate, and (d) the regasification (dissociation) of the hydrate. The technological development of any of these processes is still at an early stage. For hydrate formation, for example, various rival operations have been proposed. However,many of them have never been subjected to actual tests for practical use. More efforts are required for examining the different hydrate-formation technologies and for rating them by comparison. The general design of the processing of the formed hydrate inevitably depends on both the hydrate-formation process and the storage/transportation process, hence it has a wide variability. The major uncertainty in the storage-process design lies in the as-yet unclarified utility of the "self-preservation" effect of the naturalgas hydrates. The process design as well as the relevant cost evaluation should strongly depend on whether the hydrates are well preserved at atmospheric pressure in large-scale storage facilities. The regasification process has been studied less extensively than the former processes. The state of the art of the technological development in each of the serial processes is reviewed, placing emphasis on the hydrate formation process.

关键词： into rate or as of that RECENT ADVANCES IN HYDRATE-BASED TECHNOLOGIES FOR NATURAL GAS STORAGE A REVIEW been