Background & Aims of the Study: Studying the phasic process of the biogas yieldis required to optimize the design and operations; it also helps to lower energy production costs by decreasing the capital investment and operational costs. Here we determine the biogas process by measuring pH, ORP, electrical power and make compatibility to the biogas production trend. Materi...

Objective 1. Identify diet formulations to improve reproductive performance (egg biochemical composition, fecundity, egg and fry quality) of catfish and determine associated effects on production costs. a. Manipulate dietary protein concentration and lipid sources and assess reproductive performance and diet effects on production costs (Tank Trial 1). b. Refine dietary protein and lipid sources...

this study was conducted to evaluate the share of cost factors affecting on final cost of broiler live weight per kilogram in tehran province. data were collected through questionnaires. farms were divided to three cost ranges: less than 35,000, between 35,000 to 40,000, and over 40000 rails based on production cost per kg of live weight. in this study, water and additives, staff, vaccines, tra...

Economies of size refer to the ability of a farm to lower costs of production by increasing production. Agriculture production displays an L-shaped average cost curve where costs are lower initially but reach a point where no further gains are achieved. Spreading fixed costs, bulk purchases, and marketing power are cited as reasons for economies of size. Labor-reducing technologies may be the p...

Efficient and effective management of production cost is carried out by identifying the uncertainty in production planning in supply chain. Thus the determination of the uncertainty factors at various levels in a supply chain becomes inevitable so as to ensure minimal Cost for the manufacturing process. Minimizing the total supply chain cost is meant for minimizing labour, material and minimizi...

introduction: road traffic crashes (rtcs) are very common across the world and in iran. the aim of this study was to estimate the economic burden of road traffic accidents in tehran province, iran in 2009. methods: t his was a descriptive, cross-sectional retrospective study. the study population included all deceased and injuries due to rtcs in tehran in 2009. the economic burden of rtc was es...

The nature of electro-optical equipment in various industries and the pursuit of the goal of reducing costs demand high reliability on the part of electro-optical systems. In this respect, reliability improvement could be addressed through a reliability allocation problem. Subsystem reliability must be increased such that the requirements as well as defined requisite functions are ensured in ac...