نتایج جستجو برای: production costs

تعداد نتایج: 762944  

Journal: :مدیریت زنجیره تأمین 0
مهدی سلطانی تهرانی مسعود مصدق خواه حسینعلی حسن پور

today, due to the direct and reverse logistics plays an important role in reducing the costs in supply chain. in this paper, in order to provide a closed-loop supply chain network including supply centers, production, distribution, collection, recycling and disposal of a used linear mixed integer programming. this paper to consider multi-period and multi-product in multi-level supply chain and ...

Journal: :Acta Veterinaria Scandinavica 2007
Susanna Kangas Tapani Lyytikäinen Jukka Peltola Jukka Ranta Riitta Maijala

BACKGROUND Costs and benefits of two Salmonella control policies for broiler production were described and compared. The control options were the Zoonosis Directive 92/117/EC and the more intense strategy, the Finnish Salmonella Control Programme (FSCP). METHODS The comparison included the Salmonella control costs in primary and secondary production and the direct and indirect losses due to S...

This research was conducted in the west forest of Guilan, northern Iran. Data from various harvesting methods for 20 years were collected. Results showed that, productivity rate of round wood, pulp wood and fuel wood has had an upward trend, while rate of traditional products (lumber, sawn wood, charcoal, etc.) has had a downward trend. Production cost has been investigated in this research. Th...

This paper develops a method for solving the single product multi-period production-planning problem, in which the production and the inventory costs of each period arc concave and backlogging is not permitted. It is also assumed that the unit variable cost of the production evolves according to a continuous time Markov process. We prove that this production-planning problem can be Stated as a ...

Journal: :international journal of finance and managerial accounting 0
narges sarlak assistant professor, faculty of management, university of qom. address: sisters’ campus, qom university, qom-isfahan old road, qom, iran. zahra nasrollahi msc. in accounting.

this research aims to study the relationship between the components of quality costs and quality in company. the relationship between the components of quality costs and quality in company has been studied separately for materials, manpower, machinery, and whole of company. in this study, traditional method was used to collect quality costs and paf model was used to determine the components of ...

Journal: :محیط شناسی 0
شاهو کرمی دانشگاه تهران، دانشجوی کارشناسی ارشد مدیریت و برنامه ریزی محیط زیست، دانشکدة محیط زیست غلامرضا نبی بید هندی دانشگاه تهران، استاد دانشکده محیط زیست حمیدرضا جعفری دانشگاه تهران، دانشیار دانشکده محیط زیست حسین وحیدی پژوهشکدة توسعه و تکنولوژی جهاد دانشگاهی صنعتی شریف، دانشجوی دکترای مهندسی محیط زیست

growth of the petrochemical industry and its products has been followed growth in other sectors of production, use and trade of chemicals at national and regional levels. it is one of the basic industries which are feeder to other industry sectors as the engine of the economy and play a major role in developing countries. with no doubt mismanagement and improper use of chemicals lead to harmful...

Journal: :Journal of dairy science 2014
Andrea Bouma Catherine A Durham Lisbeth Meunier-Goddik

Lack of valid economic data for artisan cheese making is a serious impediment to developing a realistic business plan and obtaining financing. The objective of this study was to determine approximate start-up and operating costs for an artisan cheese company. In addition, values are provided for the required size of processing and aging facilities associated with specific production volumes. Fo...

Journal: :علوم و تکنولوژی پلیمر 0
زهرا بیگم مختاری حسینی ابراهیم واشقانی فراهانی سید عباس شجاع الساداتی

poly-β-hydroxybutyrate (phb), produced by several species of bacteria, has attracted great attention as a biodegradable and biocompatible compound with almost similar properties of polypropylene. unfortunately, its use is currently limited due to high production costs. one of the most common methods for overcoming this constraint is the use of inexpensive substrates, like methanol. another stra...

Journal: :علوم دامی ایران 0
داود زحمتکش دانشجوی دکتری دانشگاه زنجان حمید امانلو استاد دانشگاه زنجان قادر دشتی دانشیار گروه اقتصاد کشاورزی دانشگاه تبریز

this study was conducted to evaluate consumption inputs, production costs, nutrient composition and performance in production of alfalfa hay and alfalfa silage. therefore, data on alfalfa hay production were collected from 75 farms in zanjan province, using a face to face questionnaire in the year 2012. a systematic random sampling method was used. then, two farms managed by silage harvesting s...

ژورنال: علوم آب و خاک 2008
حسینی, سید صفدر, قربانی, محمد , حسن پور, ابراهیم , خالدی, محمد ,

This paper analyzed the effect of transaction costs on supply response of rice producers in Iran. Some of these producers participate in market as sellers or buyers and others remain self-sufficient. Farmers have different responses based on fixed and proportional transaction costs. The data used in this research consisted of information about 260 rice producers in Mazandaran province in 2004. ...

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