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Готові списки джерел за темами / MIT Bag model

Добірка наукової літератури з теми "MIT Bag model"

Автор: Grafiati

Опубліковано: 22 жовтня 2022

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Статті в журналах з теми "MIT Bag model":

1

Jun, Jung-Hwan. "New aspects of MIT bag model." Il Nuovo Cimento A 106, no. 1 (January 1993): 101–11. http://dx.doi.org/10.1007/bf02771510.

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2

Duck, Ian, and James Reed. "MIT bag model with chiral solitons." Physical Review D 33, no. 9 (May 1, 1986): 2679–87. http://dx.doi.org/10.1103/physrevd.33.2679.

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3

Weiss, C., and A. D. Jackson. "An MIT bag model on S3." Nuclear Physics A 547, no. 4 (September 1992): 551–75. http://dx.doi.org/10.1016/0375-9474(92)90651-y.

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4

Yuan, Feng. "Sivers function in the MIT bag model." Physics Letters B 575, no. 1-2 (November 2003): 45–54. http://dx.doi.org/10.1016/j.physletb.2003.09.052.

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5

Arrizabalaga, N., L. Le Treust, and N. Raymond. "Extension operator for the MIT Bag Model." Annales de la Faculté des sciences de Toulouse : Mathématiques 29, no. 1 (July 24, 2020): 135–47. http://dx.doi.org/10.5802/afst.1627.

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6

Iwasaki, M., N. Tanokami, and T. Nakai. "Excited baryons in the MIT bag model." Physics Letters B 314, no. 3-4 (September 1993): 391–96. http://dx.doi.org/10.1016/0370-2693(93)91255-l.

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7

Savatier, F. "Deconfinement phase transition within the MIT bag model." Journal of Mathematical Physics 32, no. 10 (October 1991): 2666–75. http://dx.doi.org/10.1063/1.529108.

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8

Lavenda, B. H. "High temperature properties of the MIT bag model." Journal of Physics G: Nuclear and Particle Physics 34, no. 9 (August 14, 2007): 2045–51. http://dx.doi.org/10.1088/0954-3899/34/9/013.

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9

Sadzikowski, M., and K. Zalewski. "Isgur-Wise functions from the MIT bag model." Zeitschrift für Physik C Particles and Fields 59, no. 4 (December 1993): 677–81. http://dx.doi.org/10.1007/bf01562560.

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10

Arrizabalaga, Naiara, Loïc Le Treust, Albert Mas, and Nicolas Raymond. "The MIT Bag Model as an infinite mass limit." Journal de l’École polytechnique — Mathématiques 6 (2019): 329–65. http://dx.doi.org/10.5802/jep.95.

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Більше джерел

Дисертації з теми "MIT Bag model":

1

Lagerkvist, Leo, and Filip Samuelsson. "The MIT bag-model : Glueball mass spectrum using the MIT bag-model." Thesis, KTH, Teoretisk fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-167796.

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This thesis studies the MIT bag-model and derives important equations regarding this model. The masses of the hypothetical glueballs are determined using the MIT bag-model. Five different glueball masses are predicted and the lowest glueball mass is determined to be 0.961 GeV. This is in excellent agreement with similar predictions using the MIT bag-model. Lattice QCD and other nucleon models are compared to the MIT bag-model. Many recent studies using lattice QCD have found the lowest glueball mass to be $\sim$ 1.6 GeV. This result better suits newly discovered glueball candidates, indicating that our calculated mass is to low.
Denna avhandling studerar MIT bagmodellen och härleder relevanta ekvationeri modellen. En massberäkning av de hypotetiska klisterbollarna görs med hjälp av MIT bagmodellen. Fem olika klistebollar beräknas och lägsta klistebollsmassan fåstill 0.961 GeV. Detta är i utmärkt överensstämmelse med liknande studier gjorda med MIT bagmodellen. Lattice QCD och andra nukleonmodeller jämförs med MIT bagmodellen. Många nya studier med lattice QCD har beräknat lägsta klisterbollsmassan till $\sim$ 1,6 GeV. Detta resultat passar bättre in på nyligen upptäckta klisterbollskandidater, vilket tyder på att vår beräknade massa är för låg.

2

Rodionov, Evguenii N. "The MIT bag model in nuclear and particle physics /." Title page, contents, abstract and introduction only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phr692.pdf.

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3

Hazelton, William Donald. "Configuration mixing of quark states in nucleons and other baryons in the MIT bag model /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/9770.

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4

Flamencourt, Brice. "On some problems in spectral analysis, spin geometry and conformal geometry." Thesis, université Paris-Saclay, 2022. http://www.theses.fr/2022UPASM014.

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Cette thèse se divise en deux grandes parties. Dans la première, on s'intéresse à deux problèmes d'analyse spectrale portant sur la convergence des valeurs propres d'opérateurs à paramètres. D'une part, on considère l'opérateur de Schrödinger dans le plan, avec un potentiel singulier supporté par une courbe fermée Γ admettant un point de rebroussement. Ce potentiel s'écrit formellement −αδ(x−Γ), et l'on décrit le comportement du spectre de l'opérateur dans la limite α→∞. D'autre part, on étudie l'opérateur de Dirac qui apparaît dans le modèle MIT Bag, en le généralisant aux variétés spin. Lorsque le paramètre de masse de cet opérateur tend vers l'infini, on observe une convergence des valeurs propres. Dans la seconde partie, on discute différents problèmes de géométrie. On démontre tout d'abord des résultats de structure et de classification en dimension 3 pour une classe particulière de spineurs, appelés spineurs de Cauchy, qui apparaissent naturellement comme restrictions de spineurs parallèles à des hypersurfaces orientées de variétés spin. Enfin, on s'intéresse aux connexions de Weyl sur les variétés conformes. On définit les structures localement conformément produits (LCP) par la donnée d'une structure de Weyl fermée, non-exacte, non-plate et à holonomie réductible sur une variété conforme compacte. On analyse les variétés LCP afin d'initier une classification
This thesis is divided into two main parts. In the first one, we focus on two problems of spectral analysis concerning the convergence of eigenvalues of operators with parameters. On the one hand, we consider the Schrödinger operator in the plane, with a singular potential supported by a closed curve Γ admitting a cusp. This potential is formally written −αδ(x−Γ), and we describe the behaviour of the spectrum of the operator as α→∞. On the other hand, we study the Dirac operator which appears in the MIT Bag model, by generalizing it from Euclidean spaces to spin manifolds. We observe a convergence of the eigenvalues of this operator when the mass parameter tends to infinity. In the second part, we discuss two different geometric problems. First, we prove structure and classification results in dimension 3 for a particular class of spinors, called Cauchy spinors, arising as restrictions of parallel spinors to oriented hypersurfaces of spin manifolds. Finally, we focus on Weyl connections on conformal manifolds. We define a locally conformally product (LCP) structure as a closed, non-exact, non-flat Weyl structure with reducible holonomy on a compact conformal manifold. We analyse the LCP manifolds in order to initiate a classification

5

Gibson, Jason. "Nano-Particles in Multi-Scale Composites and Ballistic Applications." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5745.

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Carbon nanotubes, graphene and nano sized core shell rubber particles have all been extensively researched for their capability to improve mechanical properties of thermoset resins. However, there has been a lack of research on their evaluation for energy absorption in high velocity impact scenarios, and the fundamental mechanics of their failure mechanisms during highly dynamic stress transfer through the matrix. This fundamental research is essential for laying the foundation for improvement in ballistic performance in composite armor. In hard armor applications, energy absorption is largely accomplished through delamination between plies of the composite laminate. This energy absorption is accomplished through two mechanisms. The first being the elongation of the fiber reinforcement contained in the resin matrix, and the second is the propagation of the crack in between the discreet fabric plies. This research aims to fundamentally study the energy absorption characteristics of various nano-particles as reinforcements in thermoset resin for high velocity impact applications. Multiple morphologies will be evaluated through use of platelet, tubular and spherical shaped nano-particles. Evaluations of the effect on stress transfer through the matrix due to the combination of nano sized and micro scale particles of milled fiber is conducted. Three different nano-particles are utilized, specifically, multi-walled carbon nanotubes, graphene, and core shell rubber particles. The difference in surface area, aspect ratio and molecular structure between the tube, platelet and spherical nano-particles causes energy absorption through different failure mechanisms. This changes the impact performance of composite panels enhanced with the nano-particle fillers. Composite panels made through the use of dispersing the various nano-particles in a non-contact planetary mixer, are evaluated through various dynamic and static testing, including unnotched cantilever beam impact, mixed mode fracture toughness, split-Hopkinson bar, and ballistic V50 testing. The unnotched cantilever beam testing showed that the addition of milled fiber degraded the impact resistance of the samples. Addition of graphene nano platelets unilaterally degraded impact resistance through the unnotched cantilever beam testing. 1.5% loading of MWCNT showed the greatest increase in impact resistance, with a 43% increase over baseline. Determining the critical load for mixed mode interlaminar shear testing can be difficult for composite panels that bend without breaking. An iterative technique of optimizing the coefficient of determination, R2, in linear regression is developed for objectively determining the point of non-linearity for critical load. This allows for a mathematical method of determination; thereby eliminating any subjective decision of choosing where the data becomes non-linear. The core shell rubber nano particles showed the greatest strain energy release rate with an exponential improvement over the baseline results. Synergistic effects between nano and micro sized particles in the resin matrix during transfer of the stress wave were created and evaluated. Loadings of 1% milled carbon fiber enhanced the V50 ballistic performance of both carbon nanotube and core shell rubber particles in the resin matrix. However, the addition of milled carbon fiber degrades the impact resistance of all nano-particle enhanced resin matrices. Therefore, benefits gained from the addition of micro-sized particles in combination with nano-sized particles, are only seen in high energy impact scenarios with micro second durations. Loadings of 1% core shell rubber particles and 1% milled carbon fiber have an improvement of 8% in V50 ballistic performance over the baseline epoxy sample for 44 mag single wad cutter gas check projectiles. Loadings of 1% multi-walled carbon nanotubes with 1% milled carbon fiber have an improvement of 7.3% in V50 ballistic performance over the baseline epoxy sample. The failure mechanism of the various nano-particle enhanced resin matrices during the ballistic event is discussed through the use of scanning electron microscope images and Raman spectroscopy of the panels after failure. The Raman spectroscopy data shows a Raman shift for the fibers that had an enhancement in the V50 performance through the use of nano-particles. The Raman band for Kevlar centered at 1,649 cm-1 stemming from the stretching of the C==O bond of the fiber shows to be more sensitive to the residual axial strain, while the Raman band centered at 1,611 cm-1 stemming from the C-C phenyl ring is minimally affected for the CSR enhanced panels due to the failure mechanism of the CSR particles during crack propagation.
Ph.D.
Doctorate
Mechanical and Aerospace Engineering
Engineering and Computer Science
Mechanical Engineering

6

Rodionov, E. N. "The MIT bag model in nuclear and particle physics / Evguenii N. Rodionov." 1997. http://hdl.handle.net/2440/19039.

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Copies of author's earlier publications inserted.
Bibliography: leaves 129-137.
137 leaves : ill. ; 30 cm.
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
The subject of this thesis is the application of the MIT bag model to nuclear and particle physics.
Thesis (Ph.D.)--University of Adelaide, Dept. of Physics and Mathematical Physics, 1997

7

Maas, Bea. "Birds, bats and arthropods in tropical agroforestry landscapes: Functional diversity, multitrophic interactions and crop yield." Doctoral thesis, 2013. http://hdl.handle.net/11858/00-1735-0000-0022-5E77-5.

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Книги з теми "MIT Bag model":

1

Varlamov, Oleg. Mivar databases and rules. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1508665.

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The multidimensional open epistemological active network MOGAN is the basis for the transition to a qualitatively new level of creating logical artificial intelligence. Mivar databases and rules became the foundation for the creation of MOGAN. The results of the analysis and generalization of data representation structures of various data models are presented: from relational to "Entity — Relationship" (ER-model). On the basis of this generalization, a new model of data and rules is created: the mivar information space "Thing-Property-Relation". The logic-computational processing of data in this new model of data and rules is shown, which has linear computational complexity relative to the number of rules. MOGAN is a development of Rule - Based Systems and allows you to quickly and easily design algorithms and work with logical reasoning in the "If..., Then..." format. An example of creating a mivar expert system for solving problems in the model area "Geometry"is given. Mivar databases and rules can be used to model cause-and-effect relationships in different subject areas and to create knowledge bases of new-generation applied artificial intelligence systems and real-time mivar expert systems with the transition to"Big Knowledge". The textbook in the field of training "Computer Science and Computer Engineering" is intended for students, bachelors, undergraduates, postgraduates studying artificial intelligence methods used in information processing and management systems, as well as for users and specialists who create mivar knowledge models, expert systems, automated control systems and decision support systems. Keywords: cybernetics, artificial intelligence, mivar, mivar networks, databases, data models, expert system, intelligent systems, multidimensional open epistemological active network, MOGAN, MIPRA, KESMI, Wi!Mi, Razumator, knowledge bases, knowledge graphs, knowledge networks, Big knowledge, products, logical inference, decision support systems, decision-making systems, autonomous robots, recommendation systems, universal knowledge tools, expert system designers, logical artificial intelligence.

2

Varlamov, Oleg. Fundamentals of creating MIVAR expert systems. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1513119.

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Methodological and applied issues of the basics of creating knowledge bases and expert systems of logical artificial intelligence are considered. The software package "MIV Expert Systems Designer" (KESMI) Wi!Mi RAZUMATOR" (version 2.1), which is a convenient tool for the development of intelligent information systems. Examples of creating mivar expert systems and several laboratory works are given. The reader, having studied this tutorial, will be able to independently create expert systems based on KESMI. The textbook in the field of training "Computer Science and Computer Engineering" is intended for students, bachelors, undergraduates, postgraduates studying artificial intelligence methods used in information processing and management systems, as well as for users and specialists who create mivar knowledge models, expert systems, automated control systems and decision support systems. Keywords: cybernetics, artificial intelligence, mivar, mivar networks, databases, data models, expert system, intelligent systems, multidimensional open epistemological active network, MOGAN, MIPRA, KESMI, Wi!Mi, Razumator, knowledge bases, knowledge graphs, knowledge networks, Big knowledge, products, logical inference, decision support systems, decision-making systems, autonomous robots, recommendation systems, universal knowledge tools, expert system designers, logical artificial intelligence.

3

Varlamov, Oleg. 18 examples of mivar expert systems. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1248446.

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Many years of research on mivar technologies of logical artificial intelligence have allowed us to create a new powerful, versatile and fast tool, which is called "multidimensional open gnoseological active net" — "multidimensional open gnoseological active net: MOGAN". This tool allows you to quickly and easily design algorithms and work with logical reasoning in the "If..., Then..." format, and it can be used to model cause-and-effect relationships in different subject areas and create knowledge bases of new-generation applied artificial intelligence systems and real-time mivar expert systems with "Big Knowledge". The reader, after studying this tutorial, you will be able to create mivar expert system with the help of CASMI Wi!Mi. Designed for students, bachelors, masters and postgraduate students studying artificial intelligence methods, as well as for users, experts and specialists, creating a system of information processing and management, mivar models, expert systems, automated control systems, systems of decision support and Recommender systems.

4

Tang, Chengyou. Xian dai zhong chang qi shui wen yu bao fang fa ji qi ying yong: The advanced methods for mid-long term hydrological forecasting and its application. 8th ed. Beijing Shi: Zhongguo shui li shui dian chu ban she, 2008.

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5

Lu, Xiaohua. Xin xi cai chan quan: Min fa shi jiao zhong de xin cai fu bao hu mo shi = Information property right : protecting information wealth in the ci vil law model. Beijing: Fa lü chu ban she, 2009.

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6

Lu, Xiaohua. Xin xi cai chan quan: Min fa shi jiao zhong de xin cai fu bao hu mo shi = Information property right : protecting information wealth in the ci vil law model. Beijing: Fa lü chu ban she, 2009.

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7

Kemper, Kurt Edward. Before March Madness. University of Illinois Press, 2020. http://dx.doi.org/10.5622/illinois/9780252043260.001.0001.

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Before March Madness examines the power dynamics of mid-century college sports when their meaning in higher education was still uncertain, when their future in American culture was still undetermined, and when the ascendance, indeed the very survival, of the NCAA was not yet assured. The book identifies the institutional struggles of college athletics from the late 1930s to the late 1950s and the multiple stakeholders and varied interests contained therein, showing a complex, and often conflicting, view of both college sports and higher education. The NCAA’s insistence on defining college athletics solely within the big-time commercialized model opened itself to severe criticism from within the organization in the form of small liberal arts colleges, medium-size regional and state universities, and historically black colleges, as well as outside it with the creation of the NAIA. The organization, however, successfully used college basketball to both placate internal critics and stave off its external competitor. In doing so, the NCAA managed to create in the public’s mind a singular vision of college sports, often represented by college football, representing only the big-time commercialized model by creating a peace that was purchased through college basketball. The success of NCAA elites to co-opt, divide, and placate its insurgent critics mirrored the larger response of mid-twentieth-century political and economic elites in the face of unprecedented challenges resulting from the civil rights movement, second-wave feminism, and opposition to the war in Vietnam.

8

Weeraratne, Bilesha. Ban on female migrant workers: Skills-differentiated evidence from Sri Lanka. 44th ed. UNU-WIDER, 2021. http://dx.doi.org/10.35188/unu-wider/2021/982-2.

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This study examines the skills-differentiated impact of a restrictive female labour migration policy in Sri Lanka using monthly departure data from 2012 to 2018 in a difference-in-difference model. The policy has resulted in decreasing departures among lower-skilled groups—female domestic, unskilled, semi-skilled, and skilled workers—and increasing departures among middle-level and professional workers. The decrease in departures of lower-skilled groups is consistent with the objectives of the policy and existing impact evaluation studies, while the increase in higher-skilled workers is consistent with the literature on Family Background Report-related corruption and mis-reporting of skills to avoid the policy. Thus, the Family Background Report policy is associated with higher involvement of lower-skilled workers in recruitment-related corruption, higher exposure to recruitment-related vulnerability, and lower foreign employment opportunities. The study also finds that it was appropriate to exempt the 45–49 year age group from the Family Background Report requirement in 2017.

9

Yusoff, Ismail. Tuan Guru Nik Abdul Aziz: Pemikiran agama dan politik. UUM Press, 2015. http://dx.doi.org/10.32890/9789670876061.

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Tuan Guru Dato Nik Abdul Aziz bin Nik Mat ialah seorang pemikir yang multidimensi. Selain dikenali sebagai tokoh politik dan pendakwah, beliau juga disegani sebagai pentadbir yang berintegriti tinggi. Beliau dianggap sebagai model pemimpin Islam di Malaysia masa kini. Sebagai seorang tokoh pembaharuan dan intelektual Muslim, beliau mempunyai kesedaran yang tinggi dan keupayaan yang unik dalam meningkatkan fahaman dan pengamalan agama dalam kalangan masyarakat Islam, khususnya di negeri Kelantan. Pada hemat Nik Aziz, kemajuan masyarakat Islam hanya dapat dicapai melalui pemahaman Islam yang murni dan bebas daripada sinkretisme. Bagi PAS, beliau bukan sahaja Tok Guru yang memberikan nafas baru kepada parti yang hampir mati di bawah kepimpinan Mohd Asri Hj. Muda, tetapi juga Mursyidul Am, ideologue dan custodian kepada nilai-nilai ideologi parti tersebut.Ikon yang zuhud ini ialah tonggak kekuatan PAS.Beliau bukan sahaja berjaya melakukan perubahan dalam senario politik dalaman PAS, tetapi juga berhasil meningkatkan pengaruh PAS, terutama dalam kalangan kaum bukan Melayu.Melalui cara ini, beliau bukan sahaja berjaya mengubah landskap politik Malaysia ke arah masyarakat berpolitik yang berpengetahuan, bersumberkan ilmu yang menunjuk jalan, dan juga politik yang bebas daripada sentimen perkauman.Nik Aziz juga ialah tokoh pembaharuan dalam bidang pentadbiran.Pendekatan politik dan pentadbirannya yang berbentuk high politics dan menuju God-centricity ini adalah suatu pencapaian yang mengagumkan dalam sejarah Islam abad ke-20.

10

1954-, Yin Tian, and Ren Zili 1971-, eds. Zhongguo cun min zi zhi dian fan mo ban ping xi: Lai zi Beijing, Shandong, Henan, Nei Menggu si sheng qu de shi zheng yan jiu = Analysis on model patterns of China's village self-governance. 8th ed. Beijing Shi: Fa lü chu ban she, 2005.

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Частини книг з теми "MIT Bag model":

1

Rabinovich, Vladimir. "Boundary Value Problems for 3D-Dirac Operators and MIT Bag Model." In Operator Theory and Harmonic Analysis, 479–95. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77493-6_28.

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2

Hecht, K. T. "The MIT Bag Model: The Dirac Equation for a Quark Confined to a Spherical Region." In Quantum Mechanics, 713–18. New York, NY: Springer New York, 2000. http://dx.doi.org/10.1007/978-1-4612-1272-0_77.

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3

Brandi, Tim Oliver, Sven Brandt, and Franz-Josef Schöne. "Rechtliche Fragestellungen im Zusammenhang mit Abwicklungsanstalten." In Modell „Bad Bank“: Hintergrund – Konzept – Erfahrungen, 169–200. Wiesbaden: Gabler Verlag, 2012. http://dx.doi.org/10.1007/978-3-8349-7165-4_9.

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4

Beckröge, Thomas. "Öko-Controlling — Erfahrungen mit dem Modell Bad Harzburg." In Kommunales EG-Öko-Audit, 121–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-01621-3_10.

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5

Nagel, Frank, and Frank Gutheim. "Marktrisikomanagement: Steuerung und Controlling - der Umgang mit Risiken in einer Abwicklungsanstalt." In Modell „Bad Bank“: Hintergrund – Konzept – Erfahrungen, 203–13. Wiesbaden: Gabler Verlag, 2012. http://dx.doi.org/10.1007/978-3-8349-7165-4_10.

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6

Davenport, Thomas H. "Ein Wiedersehen mit dem DELTA-Modell." In big data @ work, 141–42. Vahlen, 2014. http://dx.doi.org/10.15358/9783800648153-141.

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7

Beckerath, Verena von, Jessica Christoph, Carsten Praum, and Barbara Schönig. "Das Modell einer Wohnung mit Optionen." In Drei Zimmer, Küche, Diele, Bad, 122–25. De Gruyter, 2022. http://dx.doi.org/10.1515/9783868597981-012.

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8

Peebles, P. J. E. "Cosmological Models." In Cosmology's Century, 36–113. Princeton University Press, 2020. http://dx.doi.org/10.23943/princeton/9780691196022.003.0003.

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This chapter examines two spatially homogenous world pictures which captured most of the attention in cosmology from the late 1940s through the mid-1960s: an evolving universe and a universe in a statistically steady state. The evolving model describes expansion according to general relativity from an exceedingly dense early condition often termed the big bang. In the big bang model, a straightforward extrapolation of its evolution back in time ends at a singularity: a manifest failure of standard general relativity. In the alternative world picture, the continual creation of matter keeps the near-homogeneously expanding universe in a steady state. It lacked Albert Einstein's endorsement, but skillful proponents kept the picture visible in England though generally less so at other research centers. The steady-state cosmology is much more predictive than the big bang, which might have been expected to have added more than it did to general interest in the model.

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"Applying Decision Tree Approaches on Vehicle-Pedestrian Crashes." In Big Data Analytics in Traffic and Transportation Engineering, 67–101. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7943-4.ch004.

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In the Melbourne metropolitan area in Australia, an average of 34 pedestrians were killed in traffic accidents every year between 2004 and 2013, and vehicle-pedestrian crashes accounted for 24% of all fatal crashes. Mid-block crashes accounted for 46% of the total pedestrian crashes in the Melbourne metropolitan area and 49% of the pedestrian fatalities occurred at mid-blocks. Many studies have examined factors contributing to the frequency and severity of vehicle-pedestrian crashes. While many of the studies have chosen to focus on crashes at intersections, few studies have focussed on vehicle-pedestrian crashes at mid-blocks. Since the factors contributing to vehicle crashes at intersections and mid-blocks are significantly different, more research needs to be done to develop a model for vehicle-pedestrian crashes at mid-blocks. In order to identify factors contributing to the severity of vehicle-pedestrian crashes, three models using different decision trees (DTs) were developed. To improve the accuracy, stability, and robustness of the DTs, bagging and boosting techniques were used in this chapter. The results of this study show that the boosting technique improves the accuracy of individual DT models by 46%. Moreover, the results of boosting DTs (BDTs) show that neighbourhood social characteristics are as important as traffic and infrastructure variables in influencing the severity of pedestrian crashes.

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Schafran, Alex. "Introduction." In Road to Resegregation, 1–21. University of California Press, 2018. http://dx.doi.org/10.1525/california/9780520286443.003.0001.

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This introductory chapter explains the book's core arguments. The first core argument is that the profound changes in the race and class geography of the San Francisco Bay Area is fundamentally about segregation. The second core argument is that this new form and map of segregation, and the foreclosure crisis it helped to enable, was produced by the highly specific way in which the politics of space and place during the more recent era reacted to the ghosts of postwar urbanism. What has occurred is not simply some path-dependent aftermath of the postwar era, the result of a postwar model destined to fail. Nor is it simply the result of neoliberalism or bad decisions in the 1980s and beyond. Rather, it is the end result of a “neoliberal era,” that period from the mid-1970s until the foreclosure crisis of 2008, built on the ghosts of the postwar era.

Тези доповідей конференцій з теми "MIT Bag model":

1

SCHVELLINGER, MARTIN. "THE MIT BAG MODEL IN NUCLEAR MEDIUM FROM EQMC AND QHD DESCRIPTIONS." In Fifth Rio de Janeiro International Workshop. WORLD SCIENTIFIC, 1998. http://dx.doi.org/10.1142/9789814528917_0024.

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2

SHINOZAKI, TETSUYA, MAKOTO OKA, and SACHIKO TAKEUCHI. "CONTRIBUTION OF INSTANTON INDUCED INTERACTION FOR PENTA-QUARKS IN MIT BAG MODEL." In Proceedings of the International Workshop. WORLD SCIENTIFIC, 2005. http://dx.doi.org/10.1142/9789812701855_0039.

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3

Miyatsu, Tsuyoshi, Myung-Ki Cheoun, and Koichi Saito. "Properties of Neutron Stars with Hyperons and Quarks Using Relativistic Hartree–Fock Approximation and MIT Bag Model." In Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015). Journal of the Physical Society of Japan, 2017. http://dx.doi.org/10.7566/jpscp.17.102004.

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4

Zhang, Ya-Lin, and Zhi-Hua Zhou. "Multi-Instance Learning with Key Instance Shift." In Twenty-Sixth International Joint Conference on Artificial Intelligence. California: International Joint Conferences on Artificial Intelligence Organization, 2017. http://dx.doi.org/10.24963/ijcai.2017/481.

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Multi-instance learning (MIL) deals with the tasks where each example is represented by a bag of instances. A bag is positive if it contains at least one positive instance, and negative otherwise. The positive instances are also called key instances. Only bag labels are observed, whereas specific instance labels are not available in MIL. Previous studies typically assume that training and test data follow the same distribution, which may be violated in many real-world tasks. In this paper, we address the problem that the distribution of key instances varies between training and test phase. We refer to this problem as MIL with key instance shift and solve it by proposing an embedding based method MIKI. Specifically, to transform the bags into informative vectors, we propose a weighted multi-class model to select the instances with high positiveness as instance prototypes. Then we learn the importance weights for transformed bag vectors and incorporate original instance weights into them to narrow the gap between training/test distributions. Experimental results validate the effectiveness of our approach when key instance shift occurs.

5

DENG, Yiqi, and Siu Ming YIU. "Deep Multiple Instance Learning for Forecasting Stock Trends using Financial NewsDeep Multiple Instance Learning for Forecasting Stock Trends using Financial News." In 8th International Conference on Artificial Intelligence (ARIN 2022). Academy and Industry Research Collaboration Center (AIRCC), 2022. http://dx.doi.org/10.5121/csit.2022.121008.

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A major source of information can be taken from financial news articles, which have some correlations about the fluctuation of stock trends. In this paper, we investigate the influences of financial news on the stock trends, from a multi-instance view. The intuition behind this is based on the news uncertainty of varying intervals of news occurrences and the lack of annotation in every single financial news. Under the scenario of Multiple Instance Learning (MIL) where training instances are arranged in bags, and a label is assigned for the entire bag instead of instances, we develop a flexible and adaptive multi-instance learning model and evaluate its ability in directional movement forecast of Standard & Poor’s 500 index on financial news dataset. Specifically, we treat each trading day as one bag, with certain amounts of news happening on each trading day as instances in each bag. Experiment results demonstrate that our proposed multi-instance-based framework gains outstanding results in terms of the accuracy of trend prediction, compared with other state-of-art approaches and baselines.

6

Yu, Pen-Li, Dong Shim, Christopher Kirkendall, and Siamak Fouladi. "A Modified H2 Emissions Circuit Model for BAW Devices." In 2022 IEEE MTT-S International Conference on Microwave Acoustics and Mechanics (IC-MAM). IEEE, 2022. http://dx.doi.org/10.1109/ic-mam55200.2022.9855323.

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7

Lazar, Alina, Alexandra Ballow, Ling Jin, C. Anna Spurlock, Alexander Sim, and Kesheng Wu. "Machine Learning for Prediction of Mid to Long Term Habitual Transportation Mode Use." In 2019 IEEE International Conference on Big Data (Big Data). IEEE, 2019. http://dx.doi.org/10.1109/bigdata47090.2019.9006411.

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8

Zhao, Yue, Zhaoyi Joey Dai, Chong Dai, Xin Wang, Samridhdi Paudyal, Saebom Ko, Xuanzhu Yao, Cianna Leschied, Amy Kan, and Mason Tomson. "A Quantitative Study of Sr2+ Impact on Barite Crystallization and Inhibition Kinetics." In SPE International Conference on Oilfield Chemistry. SPE, 2021. http://dx.doi.org/10.2118/204361-ms.

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Abstract Scale inhibitors have been widely used for barite scale control. Our group has developed several barite crystallization and inhibition models to predict the crystallization and inhibition kinetics of pure barite with different inhibitors and calculate the minimum inhibitor concentration (MIC) required. However, instead of pure barite scale formation, the incorporation of Sr2+ can be frequently found in the oilfield, because of the coexistence of Ba2+ and Sr2+ in the produced water, which can influence the kinetics of crystallization and inhibition significantly. As a result, the MIC predicted could be off significantly. Therefore, in this study, the effect of Sr2+ on barite crystallization and inhibition kinetics is quantitatively investigated to evaluate the accuracy of MIC values under various conditions. The induction time of barite with different concentrations of Sr2+ was measured by laser apparatus without or with different concentrations of scale inhibitor diethylenetriamine penta(methylene phosphonic acid) (DTPMP) at the conditions: barite saturation index (SI) from 1.5 to 1.8; temperature (T) from 40 to 70 ℃; and [Sr2+]/[Ba2+] molar ratios from 0 to 15, all with celestite SI < 0. The results show that the induction time of the barite increases with [Sr2+]/[Ba2+] ratio at a fixed barite SI, T and DTPMP dosage. That means the MIC will be overestimated if it is calculated by previous semiempirical pure barite crystallization and inhibition models, without considering the presence of Sr2+. Based on the experimental results, the novel quantitative barite crystallization and inhibition models that include the influence of Sr2+ were developed for the first time as follows: Barite crystallization model with the influence of Sr2+: l o g 10 t 0 B a S O 4 , S r = ( 1.523 − 10.88 S I − 895.67 T ( K ) + 5477 S I × T ( K ) + 0.829 × [ C a 2 + ] ) + ( 0.823 S I + 85.44 T ( K ) − 0.667 ) × ( [ Sr 2 + ] [ B a 2 + ] ) Barite inhibition model including the influence of Sr2+ l o g 10 ( t i n h B a s o 4 , S r t 0 B a S O 4 , S r ) = b B a S O 4 , S r × C i n h l o g 10 b B a S O 4 , S r = ( − 2.187 − 1.411 × S I + 1329.29 T ( K ) + 0.153 × p H ) + ( 0.0983 × S I − 74.66 T ( K ) + 0.099 ) × ( [ Sr 2 + ] [ B a 2 + ] ) These novel models are in good agreement with the experimental data. They are used to predict the induction time and MIC more accurately at these common Ba2+ and Sr2+ coexisting scenarios. The observations and new models proposed in this study will significantly improve the barite scale management when Ba2+ and Sr2+ coexist in the oilfield.

9

Kirkendall, Christopher, Pen-Li Yu, Dong Shim, Siamak Fouladi, and Chenchen Liu. "A 3D Finite Element Model of H2 Emissions in Apodized BAW Devices." In 2022 IEEE MTT-S International Conference on Microwave Acoustics and Mechanics (IC-MAM). IEEE, 2022. http://dx.doi.org/10.1109/ic-mam55200.2022.9855278.

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10

Dhanaraj, Mayur, Manish Sharma, Tiyasa Sarkar, Srivallabha Karnam, Dimitris Chachlakis, Raymond Ptucha, Panos P. Markopoulos, and Eli Saber. "Vehicle detection from multi-modal aerial imagery using YOLOv3 with mid-level fusion." In Big Data II: Learning, Analytics, and Applications, edited by Fauzia Ahmad. SPIE, 2020. http://dx.doi.org/10.1117/12.2558115.

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Звіти організацій з теми "MIT Bag model":

1

Peter, J. M., and M. G. Gadd. Introduction to the volcanic- and sediment-hosted base-metal ore systems synthesis volume, with a summary of findings. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/328015.

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This volume presents results of research conducted during phase 5 of the Volcanic- and Sedimentary-hosted Base Metals Ore Systems project of the Geological Survey of Canada's Targeted Geoscience Initiative (TGI) program. The papers in this volume include syntheses and primary scientific reports. We present here a synopsis of the findings during this TGI project. Research activities have addressed several mineral deposit types hosted in sedimentary rocks: polymetallic hyper-enriched black shale, sedimentary exhalative Pb-Zn, carbonate-hosted Pb-Zn (Mississippi Valley-type; MVT), and fracture-controlled replacement Zn-Pb. Other carbonate-hosted deposits studied include a magnesite deposit at Mount Brussilof and a rare-earth element-F-Ba deposit at Rock Canyon Creek, both of which lack base metals but are spatially associated with the MVT deposits in the southern Rocky Mountains. Volcanogenic massive-sulfide deposits hosted in volcanic and mixed volcanic-sedimentary host rock settings were also examined. Through field geology, geochemical (lithogeochemistry, stable and radiogenic isotopes, fluid inclusions, and mineral chemistry), and geophysical (rock properties, magnetotelluric, and seismic) tools, the TGI research contributions have advanced genetic and exploration models for volcanic- and sedimentary-hosted base-metal deposits and developed new laboratory, geophysical, and field techniques to support exploration.

2

Daudelin, Francois, Lina Taing, Lucy Chen, Claudia Abreu Lopes, Adeniyi Francis Fagbamigbe, and Hamid Mehmood. Mapping WASH-related disease risk: A review of risk concepts and methods. United Nations University Institute for Water, Environment and Health, December 2021. http://dx.doi.org/10.53328/uxuo4751.

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The report provides a review of how risk is conceived of, modelled, and mapped in studies of infectious water, sanitation, and hygiene (WASH) related diseases. It focuses on spatial epidemiology of cholera, malaria and dengue to offer recommendations for the field of WASH-related disease risk mapping. The report notes a lack of consensus on the definition of disease risk in the literature, which limits the interpretability of the resulting analyses and could affect the quality of the design and direction of public health interventions. In addition, existing risk frameworks that consider disease incidence separately from community vulnerability have conceptual overlap in their components and conflate the probability and severity of disease risk into a single component. The report identifies four methods used to develop risk maps, i) observational, ii) index-based, iii) associative modelling and iv) mechanistic modelling. Observational methods are limited by a lack of historical data sets and their assumption that historical outcomes are representative of current and future risks. The more general index-based methods offer a highly flexible approach based on observed and modelled risks and can be used for partially qualitative or difficult-to-measure indicators, such as socioeconomic vulnerability. For multidimensional risk measures, indices representing different dimensions can be aggregated to form a composite index or be considered jointly without aggregation. The latter approach can distinguish between different types of disease risk such as outbreaks of high frequency/low intensity and low frequency/high intensity. Associative models, including machine learning and artificial intelligence (AI), are commonly used to measure current risk, future risk (short-term for early warning systems) or risk in areas with low data availability, but concerns about bias, privacy, trust, and accountability in algorithms can limit their application. In addition, they typically do not account for gender and demographic variables that allow risk analyses for different vulnerable groups. As an alternative, mechanistic models can be used for similar purposes as well as to create spatial measures of disease transmission efficiency or to model risk outcomes from hypothetical scenarios. Mechanistic models, however, are limited by their inability to capture locally specific transmission dynamics. The report recommends that future WASH-related disease risk mapping research: - Conceptualise risk as a function of the probability and severity of a disease risk event. Probability and severity can be disaggregated into sub-components. For outbreak-prone diseases, probability can be represented by a likelihood component while severity can be disaggregated into transmission and sensitivity sub-components, where sensitivity represents factors affecting health and socioeconomic outcomes of infection. -Employ jointly considered unaggregated indices to map multidimensional risk. Individual indices representing multiple dimensions of risk should be developed using a range of methods to take advantage of their relative strengths. -Develop and apply collaborative approaches with public health officials, development organizations and relevant stakeholders to identify appropriate interventions and priority levels for different types of risk, while ensuring the needs and values of users are met in an ethical and socially responsible manner. -Enhance identification of vulnerable populations by further disaggregating risk estimates and accounting for demographic and behavioural variables and using novel data sources such as big data and citizen science. This review is the first to focus solely on WASH-related disease risk mapping and modelling. The recommendations can be used as a guide for developing spatial epidemiology models in tandem with public health officials and to help detect and develop tailored responses to WASH-related disease outbreaks that meet the needs of vulnerable populations. The report’s main target audience is modellers, public health authorities and partners responsible for co-designing and implementing multi-sectoral health interventions, with a particular emphasis on facilitating the integration of health and WASH services delivery contributing to Sustainable Development Goals (SDG) 3 (good health and well-being) and 6 (clean water and sanitation).

3

Harris, L. B., P. Adiban, and E. Gloaguen. The role of enigmatic deep crustal and upper mantle structures on Au and magmatic Ni-Cu-PGE-Cr mineralization in the Superior Province. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328984.

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Aeromagnetic and ground gravity data for the Canadian Superior Province, filtered to extract long wavelength components and converted to pseudo-gravity, highlight deep, N-S trending regional-scale, rectilinear faults and margins to discrete, competent mafic or felsic granulite blocks (i.e. at high angles to most regional mapped structures and sub-province boundaries) with little to no surface expression that are spatially associated with lode ('orogenic') Au and Ni-Cu-PGE-Cr occurrences. Statistical and machine learning analysis of the Red Lake-Stormy Lake region in the W Superior Province confirms visual inspection for a greater correlation between Au deposits and these deep N-S structures than with mapped surface to upper crustal, generally E-W trending, faults and shear zones. Porphyry Au, Ni, Mo and U-Th showings are also located above these deep transverse faults. Several well defined concentric circular to elliptical structures identified in the Oxford Stull and Island Lake domains along the S boundary of the N Superior proto-craton, intersected by N- to NNW striking extensional fractures and/or faults that transect the W Superior Province, again with little to no direct surface or upper crustal expression, are spatially associated with magmatic Ni-Cu-PGE-Cr and related mineralization and Au occurrences. The McFaulds Lake greenstone belt, aka. 'Ring of Fire', constitutes only a small, crescent-shaped belt within one of these concentric features above which 2736-2733 Ma mafic-ultramafic intrusions bodies were intruded. The Big Trout Lake igneous complex that hosts Cr-Pt-Pd-Rh mineralization west of the Ring of Fire lies within a smaller concentrically ringed feature at depth and, near the Ontario-Manitoba border, the Lingman Lake Au deposit, numerous Au occurrences and minor Ni showings, are similarly located on concentric structures. Preliminary magnetotelluric (MT) interpretations suggest that these concentric structures appear to also have an expression in the subcontinental lithospheric mantle (SCLM) and that lithospheric mantle resistivity features trend N-S as well as E-W. With diameters between ca. 90 km to 185 km, elliptical structures are similar in size and internal geometry to coronae on Venus which geomorphological, radar, and gravity interpretations suggest formed above mantle upwellings. Emplacement of mafic-ultramafic bodies hosting Ni-Cr-PGE mineralization along these ringlike structures at their intersection with coeval deep transverse, ca. N-S faults (viz. phi structures), along with their location along the margin to the N Superior proto-craton, are consistent with secondary mantle upwellings portrayed in numerical models of a mantle plume beneath a craton with a deep lithospheric keel within a regional N-S compressional regime. Early, regional ca. N-S faults in the W Superior were reactivated as dilatational antithetic (secondary Riedel/R') sinistral shears during dextral transpression and as extensional fractures and/or normal faults during N-S shortening. The Kapuskasing structural zone or uplift likely represents Proterozoic reactivation of a similar deep transverse structure. Preservation of discrete faults in the deep crust beneath zones of distributed Neoarchean dextral transcurrent to transpressional shear zones in the present-day upper crust suggests a 'millefeuille' lithospheric strength profile, with competent SCLM, mid- to deep, and upper crustal layers. Mechanically strong deep crustal felsic and mafic granulite layers are attributed to dehydration and melt extraction. Intra-crustal decoupling along a ductile décollement in the W Superior led to the preservation of early-formed deep structures that acted as conduits for magma transport into the overlying crust and focussed hydrothermal fluid flow during regional deformation. Increase in the thickness of semi-brittle layers in the lower crust during regional metamorphism would result in an increase in fracturing and faulting in the lower crust, facilitating hydrothermal and carbonic fluid flow in pathways linking SCLM to the upper crust, a factor explaining the late timing for most orogenic Au. Results provide an important new dataset for regional prospectively mapping, especially with machine learning, and exploration targeting for Au and Ni-Cr-Cu-PGE mineralization. Results also furnish evidence for parautochthonous development of the S Superior Province during plume-related rifting and cannot be explained by conventional subduction and arc-accretion models.

4

Lazonick, William. Investing in Innovation: A Policy Framework for Attaining Sustainable Prosperity in the United States. Institute for New Economic Thinking Working Paper Series, March 2022. http://dx.doi.org/10.36687/inetwp182.

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“Sustainable prosperity” denotes an economy that generates stable and equitable growth for a large and growing middle class. From the 1940s into the 1970s, the United States appeared to be on a trajectory of sustainable prosperity, especially for white-male members of the U.S. labor force. Since the 1980s, however, an increasing proportion of the U.S labor force has experienced unstable employment and inequitable income, while growing numbers of the business firms upon which they rely for employment have generated anemic productivity growth. Stable and equitable growth requires innovative enterprise. The essence of innovative enterprise is investment in productive capabilities that can generate higher-quality, lower-cost goods and services than those previously available. The innovative enterprise tends to be a business firm—a unit of strategic control that, by selling products, must make profits over time to survive. In a modern society, however, business firms are not alone in making investments in the productive capabilities required to generate innovative goods and services. Household units and government agencies also make investments in productive capabilities upon which business firms rely for their own investment activities. When they work in a harmonious fashion, these three types of organizations—household units, government agencies, and business firms—constitute “the investment triad.” The Biden administration’s Build Back Better agenda to restore sustainable prosperity in the United States focuses on investment in productive capabilities by two of the three types of organizations in the triad: government agencies, implementing the Infrastructure Investment and Jobs Act, and household units, implementing the yet-to-be-passed American Families Act. Absent, however, is a policy agenda to encourage and enable investment in innovation by business firms. This gaping lacuna is particularly problematic because many of the largest industrial corporations in the United States place a far higher priority on distributing the contents of the corporate treasury to shareholders in the form of cash dividends and stock buybacks for the sake of higher stock yields than on investing in the productive capabilities of their workforces for the sake of innovation. Based on analyzes of the “financialization” of major U.S. business corporations, I argue that, unless Build Back Better includes an effective policy agenda to encourage and enable corporate investment in innovation, the Biden administration’s program for attaining stable and equitable growth will fail. Drawing on the experience of the U.S. economy over the past seven decades, I summarize how the United States moved toward stable and equitable growth from the late 1940s through the 1970s under a “retain-and-reinvest” resource-allocation regime at major U.S. business firms. Companies retained a substantial portion of their profits to reinvest in productive capabilities, including those of career employees. In contrast, since the early 1980s, under a “downsize-and-distribute” corporate resource-allocation regime, unstable employment, inequitable income, and sagging productivity have characterized the U.S. economy. In transition from retain-and-reinvest to downsize-and-distribute, many of the largest, most powerful corporations have adopted a “dominate-and-distribute” resource-allocation regime: Based on the innovative capabilities that they have previously developed, these companies dominate market segments of their industries but prioritize shareholders in corporate resource allocation. The practice of open-market share repurchases—aka stock buybacks—at major U.S. business corporations has been central to the dominate-and-distribute and downsize-and-distribute regimes. Since the mid-1980s, stock buybacks have become the prime mode for the legalized looting of the business corporation. I call this looting process “predatory value extraction” and contend that it is the fundamental cause of the increasing concentration of income among the richest household units and the erosion of middle-class employment opportunities for most other Americans. I conclude the paper by outlining a policy framework that could stop the looting of the business corporation and put in place social institutions that support sustainable prosperity. The agenda includes a ban on stock buybacks done as open-market repurchases, radical changes in incentives for senior corporate executives, representation of workers and taxpayers as directors on corporate boards, reform of the tax system to reward innovation and penalize financialization, and, guided by the investment-triad framework, government programs to support “collective and cumulative careers” of members of the U.S. labor force. Sustained investment in human capabilities by the investment triad, including business firms, would make it possible for an ever-increasing portion of the U.S. labor force to engage in the productive careers that underpin upward socioeconomic mobility, which would be manifested by a growing, robust, and hopeful American middle class.