نتایج جستجو برای: evaluation model
تعداد نتایج: 2811647 فیلتر نتایج به سال:
abstract: in the paper of black and scholes (1973) a closed form solution for the price of a european option is derived . as extension to the black and scholes model with constant volatility, option pricing model with time varying volatility have been suggested within the frame work of generalized autoregressive conditional heteroskedasticity (garch) . these processes can explain a number of em...
supplier selection is a multi-criteria problem. this study proposes a hybrid model for supporting the suppliers’ selection and ranking. this research is a two-stage model designed to fully rank the suppliers where each supplier has multiple inputs and outputs. first, the supplier evaluation problem is formulated by data envelopment analysis (dea), since the regarded decision deals with uncertai...
The present paper discusses the development of a performance model of power generation system of a thermal plant for performance evaluation using Markov technique and probabilistic approach. The study covers two areas: development of a predictive model and evaluation of performance with the help of developed model. The present system of thermal plant under study consists of four subsystems with...
This study is practical and its purpose was to present a model based on examining the relationships between three variables: employee performance indicators, human error and employee evaluation methods, respecting the mediating role of methods in the oil refining industry. 281of 1050 official employees of the refining industry were selected by Morgn table for main model and 140 of 220 employees...
Background and Aim: Police hospitals provide specialized and general care services to staff, soldiers, and the public, according to their main mission, which is to support police missions in different situations. Some clients of these hospitals have rights that need to be considered due to special circumstances. This study aimed to design and validate the evaluation model of service recipient s...
since esp received universal attention to smooth the path for academic studies and productions, a great deal of research and studies have been directed towards this area. swales’ (1990) model of ra introduction move analysis has served a pioneering role of guiding many relevant studies and has proven to be productive in terms of helpful guidelines that are the outcome of voluminous productions ...
In this article, Non radial method of dynamic DEA with the parallel network structure is presented and is used for calculation of relative efficiency measures when inputs and outputs do not change equally. In this model, DMU divisions under evaluation have been put together in parallel. But its dynamic structure is assumed in series. Since in real applications there are undesirable inputs an...
In many cases, redundant systems are beset by both independent and dependent failures. Ignoring dependent variables in MTBF evaluation of redundant systems hastens the occurrence of failure, causing it to take place before the expected time, hence decreasing safety and creating irreversible damages. Common cause failure (CCF) and cascading failure are two varieties of dependent failures, both l...
The present study examined the mediating role of academic stress on the relationship between fear of negative evaluation and emotional well-being among gifted and normal adolescents. In a sample consisting of 680 adolescents (325 normal, 355 gifted), the Brief Fear of Negative Evaluation Scale (BFNES), the Academic Expectations Stress Inventory (AESI), and the Scales of Subjective Well-Being (S...
Im this paper, the performance of suppliers is evaluated based on their efficiencies. Evaluation environment is not always precise and we may face imprecise for evaluation indexes values. In this situation, traditional and certain models cannot be employed. For overcoming uncertainty problem, there are different models such as stochastic, statistical, Rough, Fuzzy, etc for solving uncertainty e...
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