نتایج جستجو برای: 8161 rials to skid trail construction costs

تعداد نتایج: 10699856  

2016
TOlga OZTurk

In this study, degree of soil compaction and rutting caused on the skid road by rubber-tired tractor was investigated in northern pine plantation forest in Turkey. In research area, the cross sections were selected in every 20 meter along the skid road. Penetrometer measurements were made in each cross section. Also, the soil samples were collected to on the skid road and forest site. The rutti...

ژورنال: علوم آب و خاک 2009
رضوانفر, معصومه, لطفعلیان, مجید, مجنونیان, باریس, پارساخو, آیدین,

In this research, the logging and wood extraction damages caused by wood and paper companies was investigated. The average volume per hectare of compartments 17 and 28 of Waston watershed and Compartment 7 of Alandan watershed was more than 150 cubic meters. So, these compartments were selected as the suitable research sites. The systematic randomized sampling method with 1000 m2 circular plots...

رضوانفر, معصومه, لطفعلیان, مجید, مجنونیان, باریس, پارساخو, آیدین,

In this research, the logging and wood extraction damages caused by wood and paper companies was investigated. The average volume per hectare of compartments 17 and 28 of Waston watershed and Compartment 7 of Alandan watershed was more than 150 cubic meters. So, these compartments were selected as the suitable research sites. The systematic randomized sampling method with 1000 m2 circular plots...

2004
Wolfgang G. Glasser

The incremental elimination or hydroxy functionality in an organosolv lignin by ethylalion or acetylation dramatically innuenced the state of miscibility and resulting morphology or blends prepared with hydroxypropyl cellulose (HPC). A maximum level of interaction between the blend components, as determined from melting point depression, oa:.urred where 23-40-1. or the hydroxy groups were subst...

Journal: :Journal of vessels and circulation 2022

Background and Aim: Currently, cardiovascular diseases, including coronary heart disease, are one of the leading causes death in humans worldwide. In Eastern Mediterranean Middle East, our country, diseases major health social problems, size which is rapidly increasing. Due to growth medical technologies, population growth, lifestyle changes, studying consequences costs healthcare a critical is...

Abdolsaleh Jafari, Ali Keshtkaran, Mohsen Barouni, Roohollah Karimi, Zahra Kavoosi,

Abstract Objective: In health economics, one of the important methods of economic evaluation is cost-effectiveness analysis. The usual procedure in this method is to consider effectiveness of Disability-Adjusted Life Years (DALYs) as a measure criterion. Material and Methods: This was a cross sectional study of economic assessment type or Cost-Effectiveness. All over 30 years old population o...

2017
Won Jung Ju Doyun Shin Hyunsik Park

A lightweight aggregate was produced by sintering the mixture of gold mine tailings, red mud, and limestone at 1150 ◦C. The physical (i.e., skid resistance, abrasion resistance, and bond strength) and environmental (i.e., leachability) feasibility of this aggregate was assessed to consider its potential use as a construction material for bicycle lanes. The skid resistance (British pendulum numb...

2017
Daniel M. Blake Thomas M. Wilson Jim W. Cole Natalia I. Deligne Jan M. Lindsay

Volcanic ash deposited on paved surfaces during volcanic eruptions often compromises skid resistance, which is a major component of safety. We adopt the British pendulum test method in laboratory conditions to investigate the skid resistance of road asphalt and airfield concrete surfaces covered by volcanic ash sourced from various locations in New Zealand. Controlled variations in ash characte...

Journal: :Journal of Intelligent and Robotic Systems 2010
Maciej Michalek Piotr Dutkiewicz Marcin Kielczewski Dariusz Pazderski

The paper is devoted to the trajectory tracking control task for a differentiallydriven vehicle moving on a plane surface under conditions of the persistent skid-slip phenomena. The Vector Field(s) Orientation (VFO) control strategy, presented originally for undisturbed case in [6], has been reformulated here to the new disturbed motion conditions. The extension of the VFO strategy relies on in...

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