نتایج جستجو برای: chronometer
تعداد نتایج: 254 فیلتر نتایج به سال:
Abstract In this paper we analyze the implications of gravitational waves (GWs) as standard sirens on modified gravity models by using third-generation GW detector, i.e., Einstein Telescope. Two viable in f ( R ) theories within Palatini formalism are considered our analysis and ${f}_{2}({ }+\alpha \mathrm{ln}{ }-\beta $?> ), with ...
Abstract Advances in low-temperature thermochronology, and the wide range of geologic problems that it is used to investigate, have prompted routine use thermal history (time-temperature, tT) models quantitatively explore evaluate rock cooling ages. As a result, studies investigate topics ranging from Proterozoic tectonics Pleistocene erosion now commonly require substantial numerical modeling ...
Background and Objective: Several studies have reported significant disturbances in vertical posture during various standing and walking conditions, but there is little evidence about the behavior of related muscles in dynamic conditions such as external perturbation, so this study was done to investigate and to compare the delay in response of upper trapezius and sternocleidomastoid muscles as...
introduction: noise is one of the hazardous factors in work places such as textile industries. the objective of this study is to determine noise pollution in textile industries in kermanshah (2001). materials & methods: this study is an analytical-descriptive one. the study was done in 2 steps. in the first step the characteristics of the work place & buildings were completely determined; the...
Background and Objective: Ignoring pain especially in infancy causes serious complications. Considering recent studies about sedative effect of breast-feeding and oral glucose on neonates, this study was performed to survey each method after neonatal period. Materials and Methods: This study is a triple blind clinical trial on 211 infants aged 2, 4,and 6 months, which were randomly categor...
The cosmic deceleration parameter $q$ has been reconstructed in a non-parametric way using various combinations of recent observational datasets. Pantheon compilation the Supernova (SN) distance modulus data, Cosmic Chronometer (CC) measurements Hubble including full systematics and Baryon Acoustic Oscillation (BAO) data have considered this work. redshift $z_t$, where transition from past dece...
Purpose: This paper proposes model-based standard times estimates, using multiple linear regression, nonlinear optimization, and fuzzy systems in four real cases assembly lines. The work includes a description of the models comparison their performance with values obtained conventional chronometer method. These allow estimating without reconducting field studies.Design/methodology/approach: For...
Flow velocity is one of the most important hydrodynamic variables for both channelized (rill and gullies) interrill erosive phenomena. The dye tracer technique to measure surface flow Vs based on measurement travel time a needed cover known distance. measured must be corrected obtain mean V using factor αv = V/Vs which generally empirically deduced. can influenced by method applied dye-tracer v...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید