Self-reactions in the HCl+ (DCl+) + HCl system: a state-selective investigation of the role of rotation

Till Uhlemann; Jens Wallauer; Karl-Michael Weitzel

doi:10.1039/c5cp02266e

FE Analyses of Hyperelastic Solids under Large Bending: The Role of the Searle Parameter and Eulerian Slenderness

Materials ◽

10.3390/ma13071597 ◽

2020 ◽

Vol 13 (7) ◽

pp. 1597

Author(s):

Federico Oyedeji Falope ◽

Luca Lanzoni ◽

Angelo Marcello Tarantino

Keyword(s):

Theoretical Model ◽

Cross Sections ◽

Finite Elasticity ◽

Bending Moment ◽

Longitudinal Axis ◽

Theoretical Formulation ◽

The Cross ◽

Finite Bending ◽

Compactness Index

A theoretical model concerning the finite bending of a prismatic hyperelastic solid has been recently proposed. Such a model provides the 3D kinematics and the stress field, taking into account the anticlastic effects arising in the transverse cross sections also. That model has been used later to extend the Elastica in the framework of finite elasticity. In the present work, Finite Element (FE) analyses of some basic structural systems subjected to finite bending have been carried out and the results have been compared with those provided by the theoretical model performed previously. In the theoretical formulation, the governing equation is the nonlinear local relationship between the bending moment and the curvature of the longitudinal axis of the bent beam. Such a relation has been provided in dimensionless form as a function of the Mooney–Rivlin constitutive constants and two kinematic dimensionless parameters termed Eulerian slenderness and compactness index of the cross section. Such parameters take relevance as they are involved in the well-known Searle parameter for bent solids. Two significant study cases have been investigated in detail. The results point out that the theoretical model leads to reliable results provided that the Eulerian slenderness and the compactness index of the cross sections do not exceed fixed threshold values.

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Pollen‒pistil interaction in Lilium longiflorum : the role of the pistil in controlling pollen tube growth following cross- and self-pollinations

Proceedings of the Royal Society of London Series B Biological Sciences ◽

10.1098/rspb.1982.0027 ◽

1982 ◽

Vol 215 (1198) ◽

pp. 45-62 ◽

Cited By ~ 37

Keyword(s):

Pollen Tube ◽

Pollen Tube Growth ◽

Active Component ◽

Lilium Longiflorum ◽

The Self ◽

Tube Growth ◽

Self Incompatibility ◽

System A ◽

Pollen Tube Elongation

By cytophysiological methods, the self-incompatibility mechanism of the breeding system in Lilium longiflorum has been examined with particular reference to the synthesis, location and nature of the stylar factors involved in the control of pollen tube development. A ‘bioassay’ has been developed by which the effect of stylar extracts on pollen tube elongation may be investigated. With use of this system, a crude fraction of proteins from the stylar fluid has been shown to inhibit pollen tube growth only when protein fractions from ‘self’ styles are used. The proteins of this fraction have been analysed by thin-layer gel electrofocusing. Changes in the profiles thus obtained following selfing and a heat treatment known to inactivate the self-incompatibility response indicate a highly polarized glycoprotein to be an active component of the system. The various ways by which such a glycoprotein could control pollen tube elongation are considered in detail, and these events in Lilium are discussed in the light of our knowledge of other self-incompatibility systems operating in angiosperms.

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Fragment mass identification and related aspects in the decay of 40Ca* and 39K* nuclei

International Journal of Modern Physics E ◽

10.1142/s0218301314500633 ◽

2014 ◽

Vol 23 (10) ◽

pp. 1450063 ◽

Cited By ~ 4

Author(s):

Gurvinder Kaur ◽

Manoj K. Sharma

Keyword(s):

Cross Sections ◽

Entrance Channel ◽

Cluster Decay ◽

Channel Effects ◽

Nice Agreement ◽

The Cross ◽

Fragmentation Potential ◽

First Time ◽

Mass Identification

The dynamics involved in the decay of light mass nuclei formed in asymmetric channels 12 C + 28 Si , 11 B + 28 Si and 12 C + 27 Al have been investigated using the dynamical cluster-decay model (DCM). In reference to the experimentally measured charge particle cross-sections, the fragment masses contributing towards the decay of 40 Ca * and 39 K * nuclei have been identified using spherical choice of fragmentation. Also, the role of entrance channel has been investigated by studying the decay of 39 K * nuclear system formed in two different reactions at same excitation energy. The behavior of fragmentation potential, preformation probability, penetrability and emission time, is analyzed to figure out the favorable mass fragments, their relative emergence and the entrance channel effects observed in the decay of light mass nuclei. In addition to this, the cross-sections for the light particles (LPs) and heavier charge fragments have been estimated for the compound nucleus (CN) decay. Besides this, one of the noncompound nucleus (nCN) process, deep inelastic collision (DIC) has been addressed in context of DCM approach for the first time. The cross-sections obtained in framework of DCM for both CN and nCN processes are found to have nice agreement with the available experimental data.

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The Self-Organizing City and the Architecture of Metabolism: An Architectural Critique on Urban Growth and Reorganization

Sustainability ◽

10.3390/su11195326 ◽

2019 ◽

Vol 11 (19) ◽

pp. 5326

Author(s):

Cemaliye Eken ◽

Resmiye Alpar Atun

Keyword(s):

Urban Design ◽

Urban Growth ◽

The Self ◽

Theoretical Research ◽

Resilience Theory ◽

Architectural Theory ◽

Rapid Urbanization ◽

System A ◽

Self Organizing

Over decades, cities have undergone rapid urbanization and uncontrolled urban growth. The need for future cities to operate as adaptable complex systems has generated an interest in the self-organizing resilient city. The main aim of the study is to find ways of conceptualizing self-organizing the resilient city as an emerging field of research for urban design and architectural theory. Based on these assumptions, an integrated relationship between architecture and urban design are seen as potential catalysts for absorbing the uncertainty and disturbances of urban growth and preparing the structure, function, and identity of a city as a self-organizing system that can continuously and freely adapt to changes. The paper seeks to determine the role of architecture in urban design as a main key for facilitating a self-organizing system. A systematic theoretical research method was used to describe resilience theory and self-organizing systems within an adaptive cycle and hierarchical thinking across scales. The study then sought to identify the earliest point that architectural theory conceptualized future cities from the perspective of self-organizing systems. The Metabolism movement was chosen to provide a basis for the discussion of the study. Cities as self-organizing systems need to be considered through cross-scale interactions. For a self-organizing resilient city, the inter-reliance between architecture and urban design drive the main inputs to the system.

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Static Analysis of Load-Bearing Structure of a Transparent Roof

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.769.69 ◽

2015 ◽

Vol 769 ◽

pp. 69-76

Author(s):

Olga Ivankova ◽

Lenka Konecna ◽

Eva Vojtekova

Keyword(s):

Static Analysis ◽

Cross Sections ◽

Bearing Steel ◽

The Self ◽

Load Bearing ◽

Axial Forces ◽

Vertical Displacements ◽

Glass Panels ◽

The Cross ◽

Bearing Structure

This paper deals with static analysis of load-bearing steel grid of a transparent roof. Ten structures with various spans (from 12.58 m to 30.08 m) and different heights (from 2.494 m to 7.471 m) have been modelled and analysed. The calculations were repeated for two common used types of the cross-sections - (60 x 40) mm and (60 x 60) mm. Permanent loads (the self-weight, the weight of glass panels) and variable loads (snow, wind) were taken into account. Obtained results were verified by four additional structures. The architects can use resultant graphs (the dimensions, maximum axial forces and maximum vertical displacements) in first stage of the design.

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Dissociative Attachment Studies of Halogen-containing Molecules: Problems, Applications and Challenges

Australian Journal of Physics ◽

10.1071/ph960403 ◽

1996 ◽

Vol 49 (2) ◽

pp. 403 ◽

Cited By ~ 13

Author(s):

PD Burrow ◽

GA Gallup ◽

II Fabrikant ◽

KD Jordan

Keyword(s):

Electron Transfer ◽

Gas Phase ◽

Cross Sections ◽

Halogen Atom ◽

Intramolecular Electron Transfer ◽

Dissociative Attachment ◽

Molecular Physics ◽

The Cross ◽

Atomic And Molecular Physics

The dissociative attachment (DA) process appears in a surprisingly diverse number of research disciplines. Although gas phase studies have been carried out for approximately 30 years, there are no calculations of the cross sections for this process in molecules larger than diatomics. In this presentation, we review briefly the role of DA in several contexts generally unfamiliar to workers in atomic and molecular physics, and touch on some of the theoretical difficulties. We continue with a discussion of our work, both experimental and theoretical, on compounds containing a single halogen atom and conclude with results showing how the DA process can be used to study intramolecular electron transfer.

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Oxygen K near edge structures studied with multiple scattering calculations

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100104583 ◽

1988 ◽

Vol 46 ◽

pp. 504-505

Author(s):

Xudong Weng ◽

Peter Rez

Keyword(s):

Cross Section ◽

Cross Sections ◽

Partial Cross Section ◽

Energy Window ◽

Edge Structure ◽

Fine Structures ◽

Hydrogenic Model ◽

Electron Energy Loss ◽

Quantitative Chemical

In electron energy loss spectroscopy, quantitative chemical microanalysis is performed by comparison of the intensity under a specific inner shell edge with the corresponding partial cross section. There are two commonly used models for calculations of atomic partial cross sections, the hydrogenic model and the Hartree-Slater model. Partial cross sections could also be measured from standards of known compositions. These partial cross sections are complicated by variations in the edge shapes, such as the near edge structure (ELNES) and extended fine structures (ELEXFS). The role of these solid state effects in the partial cross sections, and the transferability of the partial cross sections from material to material, has yet to be fully explored. In this work, we consider the oxygen K edge in several oxides as oxygen is present in many materials. Since the energy window of interest is in the range of 20-100 eV, we limit ourselves to the near edge structures.

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