نتایج جستجو برای: light loads

تعداد نتایج: 437589  

ژورنال: Journal of Railway Research 2021
Adoh, Lucky Ugochukwu, Tesfaye , Samuel,

The rail track is one of the most important elements of a railway system. During the passage of trains, the rails are subjected to contact load that comes from the wheels of the train.  The railway track often fails in service due to wear caused by contact fatigue and other wear damage mechanisms that could also limit the life span of the railway infrastructure and railway vehicle. The aim of t...

Journal: :FES Journal of Engineering Sciences 2021

Bridge structures are vital for majority of Sudanese due to the fact that they live besides rivers, valleys and inside islands. construction is faced by it extremely expensive. Cost such affected load which accordingly dictates required dead Loads from both superstructure substructure. In this analytical study a light bridge derived making use AASHTO principles. This practical data collected se...

Journal: :Medicine and science in sports and exercise 2002
William J Kraemer Kent Adams Enzo Cafarelli Gary A Dudley Cathryn Dooly Matthew S Feigenbaum Steven J Fleck Barry Franklin Andrew C Fry Jay R Hoffman Robert U Newton Jeffrey Potteiger Michael H Stone Nicholas A Ratamess Travis Triplett-McBride

In order to stimulate further adaptation toward a specific training goal(s), progression in the type of resistance training protocol used is necessary. The optimal characteristics of strength-specific programs include the use of both concentric and eccentric muscle actions and the performance of both single- and multiple-joint exercises. It is also recommended that the strength program sequence...

Journal: :Canadian Entomologist 2022

Abstract In the Canadian Maritimes, many beekeepers rent honey bee, Apis mellifera Linnaeus (Hymenoptera: Apidae), hives to growers of lowbush blueberry, Vaccinium angustifolium (Ericaceae), for pollination services. Anecdotally, have less vigour following pollination, potentially due higher Nosema spp. (Nosematidae) spore loads, microsporidian causing nosemosis. We undertook a study determine ...

2011
Mingxhuan Wei Yuanhai Xue Chen Xu Xiaoming Yu Yue Liu Xueqi Cheng

1.Introduction Following several methods of some past publications, among these we refined an important idea that related queries could be derived from queries submitted within the same session. As the browsers not just provide the previous queries but more informations,so we could use these informations to build a expert database for a special user, base on the database ,we could analysis some...

Journal: :CoRR 2017
Luis A. Mateos

This paper presents an insole FSR (Force Sensing Resistor) to dynamically detect weight variations in an exoskeleton system. The proposed methodology is intended for tasks of lifting and lowering heavy weights with an industrial exoskeleton to substantially reduce spinal loads during these manual handling activities. Instead of extensively placing high-dense force sensors by covering the whole ...

Journal: :Biotechnology and bioengineering 2012
Jason C Quinn Chris W Turner Thomas H Bradley

This study investigates the scaling of photobioreactor productivity based on the growth of Nannochloropsis salina incorporating the effects of direct and diffuse light. The scaling and optimization of photobioreactor geometry was analyzed by determining the growth response of a small-scale system designed to represent a core sample of a large-scale photobioreactor. The small-scale test apparatu...

2015
Ashley Anne Coble Ashley A. Coble Amy M. Marcarelli Evan S. Kane Chandrashekhar P. Joshi

Seasonal and spatial variability in environmental factors may affect dissolved organic matter composition and nutrient transformation and retention in streams. The objective of this research was to quantify and describe seasonality, quantity, and quality of nutrient processing and export of ammonium (NH4), soluble reactive phosphate (SRP), and dissolved organic carbon (DOC) into Lake Superior t...

Journal: :Medicine and science in sports and exercise 2013
Jesús G Pallarés Valentín E Fernández-Elías Juan F Ortega Gloria Muñoz Jesús Muñoz-Guerra Ricardo Mora-Rodríguez

PURPOSE The purpose of this study was to determine the oral dose of caffeine needed to increase muscle force and power output during all-out single multijoint movements. METHODS Thirteen resistance-trained men underwent a battery of muscle strength and power tests in a randomized, double-blind, crossover design, under four different conditions: (a) placebo ingestion (PLAC) or with caffeine in...

2017
Juliane Mueller Tilman Engel Stephan Kopinski Frank Mayer Steffen Mueller

AIM To analyze neuromuscular activity patterns of the trunk in healthy controls (H) and back pain patients (BPP) during one-handed lifting of light to heavy loads. METHODS After assessment of back pain (graded chronic pain scale according to von Korff) all subjects (n = 43) performed a warm-up (treadmill walking). Next, subjects were instructed to lift 3 × a 20 kg weight placed in front of th...

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