Search results for "technical"
showing 10 items of 955 documents
Cyclic response of masonry infilled RC frames: Experimental results and simplified modeling
2014
The recent large interest in nonlinear seismic analysis methods, static and dynamic, has required proper strategies of modeling based on reliable, and at the same time easy to use, constitutive laws for the structural elements. Regarding the behavior of framed structures, special attention has to be devoted to infills because of the key role they play in modifying overall stiffness, strength and ductility under seismic excitation. Pointing out the attention on this topic the paper discusses a criteria for modeling the structural behavior of infills based on a macromodeling approach, that is to say on the substitution of infills with diagonal pin jointed struts. Is here shown how multilinear…
Between idiosyncratic self-interests and professional standards: A contribution to the understanding of participatory journalism in Web 2.0. Results …
2012
Not much is known about participatory journalists in Germany or further afield. We conducted a standardized quantitative online survey of participatory journalists at the German-language website myheimat, a German-based hyperlocal participatory journalism portal with about 37,000 contributors (as at September 2010). The purpose of the survey was to examine the individual characteristics of participatory journalists (sociodemographics, expertise, qualification and gender aspects). The survey also explored why they write articles for myheimat (societal/individual motivations), what they think about their role and function as grassroots journalists (identity/self-concept), what they know and …
Used and interaction in technological platforms of open source to improve the linguistic competence in computer engineers
2017
The higher education through virtual environment is students centered oriented to the interactive learning, in situations to be closer to the real world; for that reason, teachers must have new communicative competences, nonverbal and with a learning innovative approach which allows to guide their students in the complex process of acquiring knowledge even more in a foreign language. In the same context, the use of technologic platforms of open code is becoming in the best way to give solutions which meet the actual needs of the process of acquiring a second language; on this basis, the present research is focused in the analysis and use of Open Source tools as alternative of complementary …
Digital simulation of multivariate earthquake ground motions
2000
In this paper a new generation procedure of multivariate earthquake ground motion is presented. The technique takes full advantage of the decomposition of the power spectral density matrix by means of its eigenvectors. The application of the method to multivariate ground accelerations shows some very interesting physical properties which allows one to obtain significant reduction of the computational effort in the generation of sample functions relative to multivariate earthquake ground motion processes. Copyright © 2000 John Wiley & Sons, Ltd.
LU Bibliotēka ver durvis ERASMUS+ viesiem
2017
Raksts sniedz ieskatu dažādu valstu bibliotēku darbinieku gūtajā pieredzē LU Bibliotēkā Eiropas Savienības programmas ERASMUS+ ietvaros.
The pumice aggregates of Lipari Island (Aeolian Isles-Italy)
1984
In the Island of Lipari (Aeolian Archipelago) there is a large pumice deposit. The pumice is exploited in an open-cast mine through mechanical means and taken to crushing and screening plants. Aggregates for urban construction, gravel and powder are obtained. The aggregates are used in the manufacture of light concrete. Nowadays the possibility of using pumice aggregates in order to obtain light structural concrete is being studied.
Profit change and its drivers in the English and Welsh water industry: is output quality important?
2014
Abstract The assessment of profit change over time and its drivers is essential to analyse firms' financial performance. This paper investigates profit change and its components for the 10 English and Welsh water and sewerage water companies over the period 1991–2008 and for three regulatory sub-periods. Profit changes and their drivers are computed following two approaches, namely: without controlling for water and sewerage quality issues, and after decomposing the output effect into high quality and low quality output effect. In both cases, profit change is decomposed into various factors such as quantity and price effect, technical change, efficiency change, resource mix, product mix, an…
Surface Emissivity Retrieval From Airborne Hyperspectral Scanner Data: Insights on Atmospheric Correction and Noise Removal
2012
Airborne multispectral imagers have been used in validation campaigns in order to acquire very high spatial resolution data as a benchmark for current or future satellite data. Imagery acquired with such sensors implies specific data processing in relation to view-angle-dependent atmospheric correction and removal or minimization of stripping-based noise. It is necessary to appropriately perform this processing in order to benefit from reference imageries of surface temperature (T) and emissivity (e) maps retrieved from thermal infrared data. In particular, e images generated from T/e separation algorithms show undesirable noise that jeopardizes their photointerpretation. This letter addres…
IRIDE: Interdisciplinary research infrastructure based on dual electron linacs and lasers
2014
This paper describes the scientific aims and potentials as well as the preliminary technical design of RUDE, an innovative tool for multi-disciplinary investigations in a wide field of scientific, technological and industrial applications. IRIDE will be a high intensity "particles factory", based on a combination of high duty cycle radio-frequency superconducting electron linacs and of high energy lasers. Conceived to provide unique research possibilities for particle physics, for condensed matter physics, chemistry and material science, for structural biology and industrial applications, IRIDE will open completely new research possibilities and advance our knowledge in many branches of sci…
Technical design of the phase I Mu3e experiment
2021
Nuclear instruments & methods in physics research / A 1014, 165679 (2021). doi:10.1016/j.nima.2021.165679