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[null,"1.","Record Nr.",null,"UNINA9910139625203321"]
[null,null,"Autore",null,"Gay Daniel <1942->"]
[null,null,"Titolo",null,"Modeling and dimensioning of structures [[electronic resource] ] : a practical approach / / Daniel Gay, Jacques Gambelin"]
[null,null,"Pubbl/distr/stampa",null,"London, : ISTE Ltd."]
[{"$nulls":4},"Hoboken, NJ, : Wiley, c2008"]
[null,null,"ISBN",null,"1-282-25386-7"]
[{"$nulls":4},"9786613814517"]
[{"$nulls":4},"0-470-61128-6"]
[{"$nulls":4},"0-470-39390-4"]
[null,null,"Descrizione fisica",null,"1 online resource (737 p.)"]
[null,null,"Collana",null,"A practical approach"]
[null,null,"Disciplina",null,"624.1"]
[{"$nulls":4},"624.1/7"]
[null,null,"Soggetti",null,"Structural engineering - Data processing"]
[{"$nulls":4},"Structural engineering - Mathematics"]
[{"$nulls":4},"Structural analysis (Engineering)"]
[{"$nulls":4},"Structural frames - Mathematical models"]
[{"$nulls":4},"Engineering drawings - Dimensioning"]
[{"$nulls":4},"Electronic books."]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]
[null,null,"Nota di contenuto",null,"Modeling and Dimensioning of Structures; Table of Contents; Preface; Part 1. Level 1; Chapter 1. The Basics of Linear Elastic Behavior; 1.1. Cohesion forces; 1.2. The notion of stress; 1.2.1. Definition; 1.2.2. Graphical representation; 1.2.3. Normal and shear stresses; 1.3. Hooke's law derived from a uniaxially applied force; 1.3.1. The stretch test; 1.3.2. Linear mechanical behavior; 1.3.3. Elastic mechanical behavior; 1.3.4. Interpretation of the test at a macroscopic level; 1.3.5. Interpretation of the test at a mesoscopic level; 1.3.6. Interpretation of the test at a microscopic level"]
[{"$nulls":4},"1.5.2.3. Shear resultant Tz1.5.2.4. Torsion moment Mt; 1.5.2.5. Bending moment Mfy; 1.5.2.6. Bending moment Mfz; Chapter 2. Mechanical Behavior of Structures: An Energy Approach; 2.1. Work and energy; 2.1.1. Elementary work developed by a force; 2.1.2. Elementary work developed by a moment; 2.2. Conversion of work into energy; 2.2.1. Potential energy of deformation; 2.2.2. Potential energy for a "]
[{"$nulls":4},"spring; 2.3. Some standard expressions for potential deformation energy; 2.3.1. Deformation energies in a straight beam; 2.3.1.1. Traction (or compression); 2.3.1.2. Torsion"]
[{"$nulls":4},"2.3.1.3. Pure bending (xy plane)2.3.1.4. Plane bending (xy plane); 2.3.2. Deformation energy under plane stresses; 2.3.2.1. Case 1: dFx (Figure 2.17); 2.3.2.2. Case 2: dFx then dFy (Figure 2.18); 2.3.2.3. Case 3: dFx then dFy followed by dFxy (Figure 2.19); 2.3.2.4. Different expressions for potential energy: quadratic forms; 2.4. Work produced by external forces on a structure; 2.4.1. Beam under plane bending subjected to two forces; 2.4.1.1. Example 1; 2.4.1.2. Example 2; 2.4.2. Beam in plane bending subject to \"n\" forces; 2.4.3. Generalization to any structure"]
[{"$nulls":4},"2.4.3.1. Structure loaded by two forces 1 F and F22.4.3.2. Structure loaded by \"n\" forces F1,... Fn; 2.4.3.3. A search for real displacements on a loaded structure; 2.4.4. Summary; 2.5. Links of a structure with its surroundings; 2.5.1. Example; 2.5.2. Generalization; 2.5.2.1. Structures with rigid-body movements; 2.5.2.2. \"Properly linked\" structure; 2.6. Stiffness of a structure; 2.6.1. Preliminary note; 2.6.2. Stiffness matrix; 2.6.3. Examples; 2.6.3.1. Example: beam under plane bending loaded by two forces; 2.6.3.2. Example: beam under plane bending loaded by a force and a moment"]
[{"$nulls":4},"2.6.3.3. Generalization"]
[null,null,null,"Sommario/riassunto","This book provides the main topics currently used for the calculus of structures. The reference establishes a link between the traditional approach on the strength of materials and the present finite element method, details the main aspects of practical modeling, and explores numerous case studies."]
[null,"2.","Record Nr.",null,"UNINA9910633982903321"]
[null,null,"Autore",null,"Tatum Eugene Terry"]
[null,null,"Titolo",null,"Case for Cold Hydrogen Dark Matter / / Eugene Terry Tatum"]
[null,null,"Pubbl/distr/stampa",null,"London : , : IntechOpen, , 2021"]
[null,null,"ISBN",null,"1-83962-456-6"]
[null,null,"Descrizione fisica",null,"1 online resource (134 pages)"]
[null,null,"Disciplina",null,"665.81"]
[null,null,"Soggetti",null,"Hydrogen"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,"Nota di contenuto",null,"1. Introduction and background -- 1.1 The theory -- 2. Observational support for the CHDM theory -- 2.1 MW observations and halo mass calculations -- 2.2 Cosmic Dawn observations of the redshifted H I line -- 2.3 McGaugh's argument for a 'purely baryonic universe' -- 2.4 A cosmic Dawn H I mechanism (the Wouthuysen-Field effect) -- 2.5 The hydrogen snow cloud model -- 2.6 The new galactic pin scintillation method for observing otherwise dark baryonic matter -- 3. Discussion -- 3.1 Improved methodologies for detecting baryonic dark matter -- 3.2 Tightening constraints on dark matter -- 3.3 Computer simulations of CHDM -- 3.4 No exotic non-baryonic dark matter -- 4. Summary and conclusions -- References."]
[null,null,null,"Sommario/riassunto","The novel 'Cold Hydrogen Dark Matter' (CHDM) theory is summarized in this chapter. Special attention is paid to the fact that current technology prevents us from directly observing extremely cold ground state atomic hydrogen when it is of sufficiently low density in deep space locations. A number of very recent observations in support of this theory are summarized, including cosmic dawn constraints on dark matter. The importance of the Wouthuysen-Field effect as a probable mechanism for CMB decoupling of hydrogen at cosmic dawn is also stressed. This mechanism does not require a non-baryonic dark matter intermediary. Several predictions for this theory are made for the coming decade of observations and simulations."]
[null,"3.","Record Nr.",null,"UNISALENTO991000155739707536"]
[null,null,"Autore",null,"Franzina, Emilio"]
[null,null,"Titolo",null,"L'immaginario degli emigranti : miti e raffigurazioni dell'esperienza italiana all'estero fra i due secoli / Emilio Franzina"]
[null,null,"Pubbl/distr/stampa",null,"Treviso : Pagus, 1992"]
[null,null,"Descrizione fisica",null,"XXIV, 265 p. ; 24 cm"]
[null,null,"Collana",null,"I fronti della storia"]
[null,null,"Disciplina",null,"305.8510"]
[null,null,"Soggetti",null,"Immigrati italiani - America"]
[null,null,"Lingua di pubblicazione",null,"Italiano"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,"4.","Record Nr.",null,"UNINA9910788945903321"]
[null,null,"Autore",null,"Shukla Aaron V. <1950->"]
[null,null,"Titolo",null,"Clinical optics primer for ophthalmic medical personnel : a guide to laws, formulae, calculations, and clinical applications / / Aaron V. Shukla"]
[null,null,"Pubbl/distr/stampa",null,"Thorofare, New Jersey : , : SLACK Inc., , [2009]"]
[{"$nulls":4},"©2009"]
[null,null,"ISBN",null,"1-61711-222-4"]
[{"$nulls":4},"1-61711-682-3"]
[null,null,"Descrizione fisica",null,"1 online resource (273 p.)"]
[null,null,"Disciplina",null,"612.8/4"]
[null,null,"Soggetti",null,"Physiological optics"]
[{"$nulls":4},"Ophthalmic assistants"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]
[null,null,"Nota di contenuto",null,"Metric system -- Basic optical math -- Light, lasers, polarization, interference, and fluorescence -- Speed of light and refractive index -- Snell's law -- Critical angle -- Total internal reflection -- Types of lenses -- Reflection and mirrors -- Power of lenses -- Vergence equation --Multiple lens systems -- Magnification by lenses -- Prisms and dispersion -- Power of mirrors -- Spherical lenses -- Cylindrical lenses -- Spherocylindrical lenses -- Optical cross -- Conoid of sturm -- Optical system of the human eye -- Refracting power of a curved surface -- Accommodation -- Refractive errors -- Prentice's rule, decentration, and induced prism -- Spectacle lenses -- Contact lenses."]