نتایج جستجو برای: deterioration items
تعداد نتایج: 107606 فیلتر نتایج به سال:
a r t i c l e i n f o This paper develops an economic manufacturing quantity (EMQ) model with deterioration and exponential demand in a production system over a finite time horizon under the effect of inflation and time value of money. The production rate is a dynamic variable (varying with time) in a production system. Due to a long run process, the machinery system is converted from in-contro...
OBJECTIVE As a health-related quality of life (HRQOL) measure, the LupusQoL is a reliable and valid measure for adults with systemic lupus erythematosus (SLE). This study evaluates the responsiveness and minimal important differences (MIDs) for the 8 LupusQoL domains. METHODS Patients experiencing a flare were recruited from 9 UK centers. At each of the 10 monthly visits, HRQOL (LupusQoL, Sho...
Objectives: The present study was carried out in order to validate the Persian version of Behavioral Activation for Depression Scale (BADS) the students population. Method: 370 students of Tehran and Meshed’s (in North-East of Tehran) Ferdowsi Universities completed BADS and Depression Anxiety Stress Scale (DASS). Confirmatory factor analysis was used to assess validity. Also, Pearson correlat...
A study of two warehouse inventory systems with a production unit is developed in this article some constraints which are practical applicability to optimize the total cycle and its cost. evolves three different states retain quality prolong lifetime: state producing items, reworking identified defective being idle. It processes items up certain time point. The screening process starts immediat...
Abstract. Environmental conditions can favour different kinds of deterioration in historic reinforced concrete structures. This preliminary results from literature review are focused on the climate-induced risks affecting buildings with respect to mechanical, chemical, and biological deterioration. To this purpose, a three-step process defined by PRISMA (Preferred Reporting Items for Systematic...
The classical economic production quantity (EPQ) model assumes that items produced are of perfect quality and the production rate is constant. However, production quality depends on the condition of the process. Due to process deterioration or other factors, the production process may shift and produce imperfect quality items. These imperfect quality items sometimes can be reworked and repaired...
[Purpose] The trunk muscles frequently become weak after stroke, thus impacting overall activities of daily living. However, activities of daily living items closely related with trunk strength remain unclear. This study aimed to clarify the influence of trunk muscle weakness on activities of daily living items. [Subjects] The subjects were 24 stroke patients who fulfilled the following inclusi...
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