List of Articles idle

• Open Access Article
  • Abstract Page
  • Full-Text
  
  1 - Algorithm of determining Product's Batch Size and Sequence of the Operations of n Job on m Machine
  رسول Haji هوشنگ Taghizadeh
  In this paper, a heuristic algorithm has been presented with the aim of determining the quantity ofa best batch size for minimizing the makespan of a production system in order to meet the demandsof a specified period for a product. This algorithm calculates the time re More

  In this paper, a heuristic algorithm has been presented with the aim of determining the quantity ofa best batch size for minimizing the makespan of a production system in order to meet the demandsof a specified period for a product. This algorithm calculates the time required for fulfilling each ofthe requisite operations for producing a batch size by taking into account the standard time forfulfilling the operations, number of similar parts used in one unit of a product, the machinery setuptime, scrap percentage of each operation on the relevant machinery and the quantity of that batchsize. This algorithm allots the requisite operations to the machinery for producing the total demandof a specified period by making use of the calculated information, SPT1 rule, the specifiedconditions in the algorithm and the quantity of the production in each batch size. Then, with respectto the quantity of this batch size, the aggregate of the setup and idle times of machinery iscalculated for the whole period. Afterwards, the quantity of the optimum batch size whichminimizes the aggregate of these times is obtained by calculating the aggregate of these times forthe different quantities of the batch sizes and comparing them. Some examples have been presentedfor comparing this algorithm with Ho & Chang, Johnson, and Palmer's algorithms. The results showthat this algorithm presents a better makespan in comparison with the aforementioned algorithms. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  2 - The Implementation of the Time-Driven Activity Based Costing Model In the Manufacturing Companies
  سیداحمد خلیفه سلطانی مقصود میرزایی کلانی
  This research studies and compares the results of implementation of traditionalabsorption costing model and time-driven activity based costing model(TDABC) inorder to calculating the cost of products and services in the Pasargad Polymercompany. The fundamental hypothesi More

  This research studies and compares the results of implementation of traditionalabsorption costing model and time-driven activity based costing model(TDABC) inorder to calculating the cost of products and services in the Pasargad Polymercompany. The fundamental hypothesis of this paper states that the implementation ofTDABC model presents more relevant results than traditional absorbtion costing inthe above mentioned company. The data has been collected by library and fieldresearch methods. Then the collected data were placed in the two models and theresults of data processing were analyzed. The results show that the traditionalabsorption costing model over allocates overhead costs to the higher volume productsand services and overstates the cost of these products and services accordingly. Butthe TDABC model, the simplified one of traditional activity cased costing model,modifies the over and under overhead allocation by utilizing the time equations anddrivers and reports the cost of products and services properly.. The TDABC alsomeasures the idle capacity and its cost and can help the managers in evaluating theperformance of company's departments. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  3 - Sociological analysis of the role of comparative dissatisfaction in creation of job idleness (Case study of Sharif University staff)
  Fatemeh Abron Khadigeh Safiri Khalil Mirzaee
  Abstract Idleness in the organization is a deliberate behavior and a form of common fraud to all employees at all levels of the organization. The purpose of this study was to investigate the causes and contexts of creating idleness among Sharif University staff. The res More

  Abstract Idleness in the organization is a deliberate behavior and a form of common fraud to all employees at all levels of the organization. The purpose of this study was to investigate the causes and contexts of creating idleness among Sharif University staff. The research method is grounded theory, which data was gathered through semi-structured interviews with 35 employees. The method of selecting participants was targeted and quantified was specified by reaching the saturation stage. From 665 raw data, 385 concepts, 35 sub-categories and 14 main categories were extracted from the preliminary data. Finally, the central concept of comparative dissatisfaction was chosen as the main phenomenon that covered the rest of the categories. The results of this study showed that the most important factor in creating a sense of idleness and burnout among participants was "comparative dissatisfaction". This dissatisfaction arises as a result of a feeling of discrimination or inadequacy, as well as dissatisfaction with the amount of pay or benefits relative to the amount of work that results problems such as idleness, organizational dishonesty and inadequate organization. Key words: job idleness, comparative dissatisfaction, employees, grounded theory, job burnout Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  4 - Sociological analysis of job idleness (case study of Sharif University staff)
  فاطمه آبرون خدیجه سفیری خلیل میرزایی
  Sociological analysis of job idleness (case study of Sharif University staff)Fatemeh AbrunPhD student in Sociology, Research Sciences Branch, Islamic Azad University of Tehran, IranKhadijeh SafiriProfessor, Department of Social Sciences, Faculty of Social Sciences and E More

  Sociological analysis of job idleness (case study of Sharif University staff)Fatemeh AbrunPhD student in Sociology, Research Sciences Branch, Islamic Azad University of Tehran, IranKhadijeh SafiriProfessor, Department of Social Sciences, Faculty of Social Sciences and Economics, Al-Zahra University, Tehran, Iran. (Responsible author) kh.safiri@alzahra.ac.irKhalil MirzaeiFaculty memberDepartment of Sociology, Roodehen Branch, Islamic Azad University, Tehran, Iran.Idleness in the organization is a deliberate behavior and a kind of fraud that all employees of the organization at all levels may commit in some way. The aim of this study was to investigate the causes and contexts of idleness among the employees of Sharif University of Technology. The research method is data foundation theory, the required data of which has been done through semi-structured interviews with 35 employees. The method of selecting the participants is purposeful and determining their number after reaching the saturation stage is specified. From a total of 665 raw data, 385 concepts, 35 subcategories and 14 main categories were extracted from the primary data. Finally, the concept of "organized waste of time" was chosen as the main phenomenon that covered the rest of the categories. The results of this study showed that the most important factor in creating a sense of idleness and burnout in participants is "lack of motivation and job identity; variety of tasks and routines and repetition of work." This dissatisfaction is the result of organizational discrimination; Organized corruption; There is costly patient management and bureaucracy with consequences such as; Consequences of vanity (betrayal, personnel inflation, misplacement); Subcutaneousness leads to idleness and reduced efficiency of the organization. The results of this study show that the main and fundamental cause of idleness in organizations is the waste of organized time, which is related to not reviewing the laws and regulations and directives related to the organization. Is. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  5 - Modeling and scheduling no-idle hybrid flow shop problems
  Mehdi Yazdani Bahman Naderi
  10.22094/joie.2016.261
  Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  6 - The Preemptive Just-in-time Scheduling Problem in a Flow Shop Scheduling System
  Javad Rezaeian Sadegh Hosseini-Kia Iraj Mahdavi
  10.22094/joie.2017.499.11
  Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  7 - رفتار هضم تلیسه‌های تغذیه شده با سیلاژ علوفه‌ای Marandu
  گ.آ. مندس و. روکا جونیور ج.ر.م. راس ف. وییرا سیلوا ف.پ. مونکائو د.آ. سیلوا پ.ف. سانتانا گ.س.س. دیوید
  مطالعه حاضر با هدف ارزیابی رفتار هضم تلیسه‌های Zebu × Holstein ¾ محدود شده به سطوح متفاوتی از جایگزینی سیلاژ سورگوم توسط سیلاژ علوفه‌ای marandu انجام شد. تعداد 20 تلیسه با متوسط وزن اولیه 346.25 کیلوگرم، تقسیم شده درون طرح آزمایشی کاملاً تصادفی با 5 تکرار و More

  مطالعه حاضر با هدف ارزیابی رفتار هضم تلیسه‌های Zebu × Holstein ¾ محدود شده به سطوح متفاوتی از جایگزینی سیلاژ سورگوم توسط سیلاژ علوفه‌ای marandu انجام شد. تعداد 20 تلیسه با متوسط وزن اولیه 346.25 کیلوگرم، تقسیم شده درون طرح آزمایشی کاملاً تصادفی با 5 تکرار و تیمارهای زیر: تیمار 1) قسمت علوفه‌ای جیره تشکیل شده از 100 درصد سیلاژ سورگوم؛ تیمار 2) قسمت علوفه‌ای جیره تشکیل شده از 70 درصد سیلاژ سورگوم و 30 درصد سیلاژ علوفه‌ای marandu؛ تیمار 3) قسمت علوفه‌ای جیره تشکیل شده از 30 درصد سیلاژ سورگوم و 70 درصد سیلاژ علوفه‌ای marandu و تیمار 4) قسمت علوفه‌ای جیره تشکیل شده از 100 درصد سیلاژ علوفه‌ای marandu کنسانتره آماده شده (25.25 درصد کنجاله سویا، 73.44 درصد ذرت زمینی و 31.1 درصد مخلوط مواد معدنی، براساس ماده طبیعی) بود، محاسبات برای هضم 1.2 درصد از وزن زنده انجام شد. مشاهدات بصری برای تعیین رفتار هضم، هر 21 روز، انجام شد. جایگزینی سیلاژ سورگوم توسط سیلاژ علوفه‌ای marandu زمان تغذیه را افزایش داد، آن زمان نشخوار، زمان جویدن، تعداد جویدن یک­روزه و نه تعداد وعده‌های غذایی یک روز را تحت تأثیر قرار نداد، اما آن منتج به کارایی تغذیه‌ای کمتر، بدون دخالت در کارایی نشخوار کردن ماده خشک (DM) و فیبر نامحلول در محلول خنثی (NDF) شد. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  8 - Evaluation of Different Estimation Methods of Reference Crop Evapotranspiration and Their Comparison with the Pan Evaporation Method case study: Islamabad-Gharb Area عنوان کوتاه
  mohammad amin parandin seyed aliashraf sadraddini
  An irrigation planning is set in order to determining the soil water balance and estimation of the water future consumption based on the calculation or measuremant of the Evapotranspiration values, which providing a possibility for prediction of a real time that corresp More

  An irrigation planning is set in order to determining the soil water balance and estimation of the water future consumption based on the calculation or measuremant of the Evapotranspiration values, which providing a possibility for prediction of a real time that corresponding to the moisture index of management Allowed Deficit (MAD) in soil. This study was conducted for evaluation different reference evapotranspiration models in Islamabad-Gharb area. for this purpose, the monthly data of Islamabad-Gharb synoptic Meteorology stations during a period of 30-year (1394-1364)were used. After restruction of the missed data and verification of the reference stations, values of the evapotranspiration were calculated with 9 valied formulas using REF-ET software. In order to determine the best method, the output values of the models were compared with evaporation pan data, using some statistical criterio. According to the results, the highest correlation coeficient (r=0.99) was obtained between the output data of the Blaney- Cradle model and evaporation pan. Also the minimum root mean square error (RMSE) values of 22.2 (mm/day) and 24.42 (mm/day) were belogend to the models of torque and Blaney- Cradle, respectively. Furthermore the highest efficiency (EF) value(0.93) was obtained for the both models of Blaney- Cradle and torque. Hence by considering the resulted minimum mean percentage error (MAPE) value (0.01) for Blaney-Cradle, this model was proposed as the most suitable model for application in the studied area. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  9 - Assembly line balancing to minimize balancing loss and system loss
  D Roy D Khan
  Manuscript profile