نتایج جستجو برای: term memory in cement industry time

تعداد نتایج: 17308474  

Ali Reza Mortazavi Hamid Soltanian,

It has long been known that temperature during circulation and after cement placement is one of the most important parameters for slurry design and the success in cement production. Conventional cements and low density cement slurries usually take a long time to set and cannot provide significant compressive strength. Therefore, it is important to design appropriate low density cement slurries ...

2013
Raja Peary Mohan

___________________________________________________________________________________________ Purpose: To evaluate the basic pulmonary function parameters of cement industry workers from West Bengal. This cross-sectional study was carried out in a cement factory at Durgapur, district Burdwan on male cement industry workers and a control group of office workers. Materials and methods: Ninety worke...

Journal: :Journal of Cognitive Psychology 2020

ژورنال: رویش روانشناسی 2019

Introduction: cognitive function included wide range of perceptions,memory and complex cognitive operations. Due to the memory effect at all aspects of life and unaffected by of drugs the aim of this study is comparison of memory function in normal and addicts individuals.Method: The Method of  This study is descriptive and Causal-comparative. Therefore 100 addicts under the East Azarbaijane Be...

ژورنال: طب کار 2012
اصلانی, مریم, امینیان, امید, صادق‌نیت‌حقیقی, خسرو,

Background: Although one of the most important occupational hazards in cement industry is the effect of cement dust exposure on respiratory system, there is controversy about the relationship between exposure to cement dust and respiratory symptoms and pulmonary function impairment. Our aim was to assess the effects of cement dust exposure on respiratory symptoms and lung capacities of cement w...

2017
José Marcos Ortega María Dolores Esteban Raúl Rubén Rodríguez José Luis Pastor Francisco José Ibanco Isidro Sánchez Miguel Ángel Climent

At present, sustainability is of major importance in the cement industry, and the use of additions such as silica fume as clinker replacement contributes towards that goal. Special foundations, and particularly micropiles, are one of the most suitable areas for the use of sustainable cements. The aim of this research is to analyse the effects in the very long-term (for 600 days) produced by sul...

Journal: :Scientific American 1905

2017
José Marcos Ortega Isidro Sánchez Marta Cabeza Miguel Ángel Climent

At present, one of the most suitable ways to get a more sustainable cement industry is to reduce the CO₂ emissions generated during cement production. In order to reach that goal, the use of ground granulated blast-furnace slag as clinker replacement is becoming increasingly popular. Although the effects of this addition in the properties of cementitious materials are influenced by their harden...

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