به کمک شبیه ­سازی دینامیک مولکولی می ­توان تحلیل کوتاه مدت در مقیاس زمانی چند ده پیکوثانیه ­ای را برای مواد آسیب دیده­ی تابشی مورد مطالعه قرار داد. بر همین مبنا این ­سازی، تعداد تعادلی عیوب نقطه بین ­نشین و تهی ­جای مختصات مکانی آن­ها آهن- آلفا دست آورده شد. سپس با استفاده از نتایج حاصل شده، مونت کارلوی جنبشی شیء منظور بررسی تأثیر بازپخت آلفای انجام نشان دادند که یکنواخت دیده­ ی تنها خوشه جای ب...

Six sigma is new to construction sector and this philosophy is to reduce the defects in the construction. The aim of this study is to evaluate Six Sigma as a process improvement method within construction sector. In order to improve the process in construction it is important to understand the factors affecting the construction process and analyze the factors for the construction improvement. I...

This paper first enlists the generic problems of alloy wheel machining and subsequently details on the process improvement of the identified critical-to-quality machining characteristic of A356 aluminum alloy wheel machining process. The causal factors are traced using the Ishikawa diagram and prioritization of corrective actions is done through process failure modes and effects analysis. Proce...

Celem artykułu jest sformułowanie odpowiedzi na pytanie, czy metodyka DMAIC stosowana w jednej ze strategii doskonalenia – podejściu six sigma, spełnia kryteria sprawnego, ujęciu prakseologicznym, cyklu zorganizowanego działania. Autor przeprowadził przegląd literatury źródłowej z obszaru podejścia sigma oraz prakseologicznej teorii zarządzania. Analiza porównawcza doprowadziła do sformułowania...

The fast changing economic conditions such as global competition, declining profit margin, customer demand for high quality product, product variety and reduced lead– time etc. had a major impact on manufacturing industries. To respond to these needs various industrial engineering and quality management strategies such as ISO 9000, Total Quality Management, Kaizen, Just–in–time manufacturing, E...