Local Instability

Local Instability PDF Author: Dennis Ott
Publisher: Walter de Gruyter
ISBN: 3110290952
Category : Foreign Language Study
Languages : en
Pages : 184

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Book Description
This monograph argues for a novel approach to split topicalization and quantifier float in German, based on the premise that syntactic structure-building proceeds solely via free application of Merge. Following recent developments in the pursuit of a more principled theory of syntax, it is argued that the stipulative notion of ‘projection’ ought to be dispensed with: syntactic objects created by Merge are not headed, and endocentricity arises due to a simple search algorithm. When this algorithm fails, specifically in symmetric {XP,YP} structures, an unlabeled constituent results; where a label is required, such structures are locally unstable. It is argued that both split topics and floated quantifiers are the result of this kind of local instability: when an exocentric predication structure is merged in argument or adjunct position, XP must be displaced at the phase level to allow for determination of a label. It is this symmetry-breaking movement that yields the ‘split constituent’ in surface form. Based on careful empirical scrutiny of two recalcitrant problems for syntactic theory, the present work adduces substantial support for a ‘minimalist’ grammatical architecture devoid of phrase-structural residue.

Local Instability

Local Instability PDF Author: Dennis Ott
Publisher: Walter de Gruyter
ISBN: 3110290952
Category : Foreign Language Study
Languages : en
Pages : 184

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Book Description
This monograph argues for a novel approach to split topicalization and quantifier float in German, based on the premise that syntactic structure-building proceeds solely via free application of Merge. Following recent developments in the pursuit of a more principled theory of syntax, it is argued that the stipulative notion of ‘projection’ ought to be dispensed with: syntactic objects created by Merge are not headed, and endocentricity arises due to a simple search algorithm. When this algorithm fails, specifically in symmetric {XP,YP} structures, an unlabeled constituent results; where a label is required, such structures are locally unstable. It is argued that both split topics and floated quantifiers are the result of this kind of local instability: when an exocentric predication structure is merged in argument or adjunct position, XP must be displaced at the phase level to allow for determination of a label. It is this symmetry-breaking movement that yields the ‘split constituent’ in surface form. Based on careful empirical scrutiny of two recalcitrant problems for syntactic theory, the present work adduces substantial support for a ‘minimalist’ grammatical architecture devoid of phrase-structural residue.

Stream Corridor Restoration

Stream Corridor Restoration PDF Author:
Publisher: National Technical Info Svc
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 648

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Book Description
This document is a cooperative effort among fifteen Federal agencies and partners to produce a common reference on stream corridor restoration. It responds to a growing national and international interest in restoring stream corridors.

Instabilities in a Confined Plasma

Instabilities in a Confined Plasma PDF Author: A.B Mikhailovskii
Publisher: Routledge
ISBN: 1351438174
Category : Science
Languages : en
Pages : 489

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Book Description
Instabilities in a Confined Plasma is entirely devoted to a theoretical exposition of the subject of plasma instabilities in confined systems. The book is an important contribution to the study of plasma instabilities, not only in fusion devices such as the Tokamak but also in astrophysical phenomena. It covers toroidal confinement systems, internal MHD modes, small-scale MHD instabilities, MHD internal kink modes, MHD modes in collisionless and neoclassical regimes, drift-MHD modes, external kink modes, and Alfven eigenmodes.

Computerized buckling analysis of shells

Computerized buckling analysis of shells PDF Author: D. Bushnell
Publisher: Springer Science & Business Media
ISBN: 9789024730995
Category : Science
Languages : en
Pages : 456

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Book Description
This report describes the work performed by Lockheed Palo Alto Research Labora tory, Palo Alto, California 94304. The work was sponsored by Air Force Office of Scientific Research, Bolling AFB, Washington, D. C. under Grant F49620-77-C-0l22 and by the Flight Dynamics Laboratory, Air Force Wright Aeronautical Laboratories, Wright-Patterson AFB, Ohio under Contract F3361S-76-C-31OS. The work was completed under Task 2307Nl, "Basic Research in Behavior of Metallic and Composite Components of Airframe Structures". The work was admini stered by Lt. Col. J. D. Morgan (AFOSR) and Dr. N. S. Khot (AFWAL/FIBRA). The contract work was performed between October 1977 and December 1980. The technical report was released by the Author in December 1981. Preface Many structures are assembled from parts which are thin. For example, a stiffened plate or cylindrical panel is composed of a sheet the thickness of which is small com pared to its length, breadth, and stiffener- spacing, and stiffeners the thickness of which is small compared to their _ heights and lengths. These assembled structures, loaded in compression, can buckle overall, that is sheet and stiffeners can collapse together in a general instability mode; the sheet can buckle locally between stiffeners; the stiffeners can cripple; and a variety of complex buckling interactions can occur involving local and overall deformations of both sheet and stiffeners. More complex, built-up structures can buckle in more complex and subtle ways.

Coupled Instabilities In Metal Structures 2000 (Cims 2000)

Coupled Instabilities In Metal Structures 2000 (Cims 2000) PDF Author: Dinar Camotim
Publisher: World Scientific
ISBN: 1783261552
Category : Technology & Engineering
Languages : en
Pages : 752

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Book Description
The subject of coupled instabilities is a fascinating field of research with a wide range of practical applications, particularly in the analysis and design of metal structures. Despite the excellent body of existing results concerning coupled instability structural behaviour, this situation has not yet been adequately translated into design rules or specifications. In fact, only to a small extent do modern design codes for metal structures take advantage of the significant progress made in the field.This book, which contains all the invited general reports and selected papers presented at the Third International Conference on “Coupled Instabilities in Metal Structures” (CIMS '2000), should provide a meaningful contribution towards filling the gap between research and practice.

Wartime Report

Wartime Report PDF Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 278

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Book Description


Wartime Report

Wartime Report PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 316

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Book Description


NACA Wartime Report

NACA Wartime Report PDF Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 692

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Experimental and Analytical Modeling of Natural Circulation and Forced Circulation BWRs

Experimental and Analytical Modeling of Natural Circulation and Forced Circulation BWRs PDF Author: Masahiro Furuya
Publisher: IOS Press
ISBN: 9781586036058
Category : Technology & Engineering
Languages : en
Pages : 148

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Book Description
20% of the Nuclear Power Plants are known as Boiling Water Reactors (BWRs). These BWRs have pumps that cool their reactor. In the design of new BWRs, ways to cool the core by a natural circulation flow, without pumps, also called natural circulation BWRs, are being considered. In these new systems, a chimney is installed on top of the core to increase natural circulation flow. A possible disadvantage of natural circulation BWRs might be their susceptibility to instabilities, which could then lead to both flow and power oscillations. The stability features of both natural circulation and forced circulation BWRs have been investigated thoroughly, using dedicated experimental setups, analytical models and numerical codes. We distinguish between pure thermal-hydraulic stability - where the fission power is assumed to be constant - and coupled thermalhydraulic-neutronic stability - where the two-phase mixture in the core influences the fission chain reaction...

Formatibility Topics

Formatibility Topics PDF Author: B. A. Niemier
Publisher: ASTM International
ISBN: 9780803103580
Category : Technology & Engineering
Languages : en
Pages : 288

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Book Description