نتایج جستجو برای: principal directions of ground excitation

تعداد نتایج: 21196095  

Journal: :Proceedings of the National Academy of Sciences 1924

Journal: :The European Proceedings of Social and Behavioural Sciences 2022

The paper addresses the issues of managing sustainable regional development in context dynamic socio-economic processes. authors analyzed causes and prerequisites for its main directions. Based on analysis, examines state management economy modern conditions. study identifies objectives crucial strategic management: 1. Forming competitive advantages. This objective is basis further development,...

Journal: :Classical and Quantum Gravity 1995

Journal: :Mechanical Systems and Signal Processing 2021

During whole-body vibration (WBV), dynamic forces measured at the excitation-subject interface in directions other than excitation axis, i.e. cross-axis response, are analysed using principal component analysis (PCA) and virtual coherence techniques. The study applied these operations to inline with twelve semi-supine human subjects exposed longitudinal horizontal nominally random between 0.25 ...

During the milling process, one of the most important factors in reducing tool life expectancy and quality of workpiece is the chattering phenomenon due to self-excitation. The milling process is considered as a MIMO strongly coupled nonlinear plant with time delay terms in cutting forces. We stabilize the plant using two independent Emotional Learning-based Intelligent Controller (ELIC) in par...

Journal: :Journal of computational chemistry 2012
Luís Pinto Da Silva Joaquim C. G. Esteves da Silva

The decomposition of 1,2-dioxetanone into a CO(2) molecule and into an excited state formaldehyde molecule was studied in condensed phase, using a density functional theory approach. Singlet and triplet ground and excited states were all included in the calculations. The calculations revealed a novel mechanism for the chemiluminescence of this compound. The triplet excitation can be explained b...

In this paper instability of planar anisotropic sheet metal during a few forming processes is investigated for the first time. For this reason components of the constitutive tangent tensor for planar anisotropic sheets are developed. By using the above tensor location of necking is predicted. Direction of the shear band is also predicted using the acoustic tensor. A finite element program is pr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1389

the poor orientation of the restaurants toward the information technology has yet many unsolved issues in regards to the customers. one of these problems which lead the appeal list of later, and have a negative impact on the prestige of the restaurant is the case when the later does not respond on time to the customers’ needs, and which causes their dissatisfaction. this issue is really sensiti...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

we have two part in this thesis, at first: the interaction of native calf thymus dna (ct-dna) with two anthraquinones including quinizarin (1,4- dihydroxy anthraquinone) and danthron (1,8- dihydroxy anthraquinone) in a mixture of 0.04 m brittone-robinson buffer and 50% of ethanol were studied at physiological ph by uv-vis absorption, florescence, circular dichroism spectroscopic methods, viscos...

Journal: :The Baltic Journal of Road and Bridge Engineering 2018

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