نتایج جستجو برای: pack cementation

تعداد نتایج: 19018  

Journal: :Journal of Cleaner Production 2022

To reduce greenhouse gas emissions and fuel consumption, it is important to utilize lighter materials in vehicles. Magnesium the lightest structural metal, but corrosion resistance of magnesium alloys limited. The powder thermal diffusion alloying method can enhance surface by fabricating a metallic coating. huge consumption powders potential environmental pollution problems should be controlle...

Cementation factor is a critical parameter, which affects water saturation calculation. In carbonate rocks, due to the sensitivity of this parameter to pore type, water saturation estimation has associated with high inaccuracy. Hence developing a reliable mathematical strategy to determine these properties accurately is of crucial importance. To this end, genetic algorithm pattern search is emp...

2004
A. A. Taha

The rate of copper II/zinc cementation from copper sulphate solutions in the absence and in the presence of methanol (CH3OH) and dimethyl sulphoxide (DMSO) has been studied and the reaction was found to follow first-order kinetics. The influence of several parameters on the course of the reaction, such as cylinder rotation speed, initial concentration of Cu ions, temperature and concentration o...

2013
Daehyeon Kim Kyungho Park Dongwook Kim

The purpose of this study is to understand the effect of ground conditions on microbial cementation in cohesionless soils. Since the method of microbial cementation is still at the experimental stage, for its practical use in the field, a number of laboratory experiments are required for the quantification of microbial cementation under various ground conditions, such as relative densities, rel...

M. Salehi and F. Ashrafizadeh, M. Shamanian,

The use of Fe-Al intermetallic compound coatings has been investigated in order to improve the tribological behaviour of carbon tool steel. The coatings were formed by a pack cementation process and subsequently diffusion annealing at 900˚C in an argon controlled atmosphere. The optimum diffusion time was selected on the basis of optimum thickness and tribological behaviour.&#10The microstructu...

2016
Jian-Xun Ren Dennis Chang Jian-Xun Liu

The pathophysiological characteristics of Phlegm-stasis Cementation Syndrome in Coronary Heart Disease (CHD) has been summarized in this article. According to epidemiological investigations, phlegm-stasis cementation syndrome has become a dominant syndrome in CHD along with the improvement in living and dietary condition. The interaction between blood stasis and phlegm turbidity that is called ...

Journal: :iranian journal of otorhinolaryngology 0
ali karbasfrushan department of anesthesiology, emam reza hospital, kermanshah university of medical sciences, kermanshah, iran. behzad hemmatpoor department of anesthesiology, emam reza hospital, kermanshah university of medical sciences, kermanshah, iran. behnam reza makhsosi departments of surgery, emam reza hospital, kermanshah university of medical sciences, kermanshah, iran. tayebeh mahvar m.sc degree in nursing (medical-surgical),taleghani hospital, kermanshah university of medical sciences, kermanshah, iran. parisa golfam department of anesthesiology, emam reza hospital, kermanshah university of medical sciences, kermanshah, iran. behrooz khiabani member of iranian epidemiologist association.

introduction: nausea and vomiting after ear, nose and throat (ent) surgery is one of the most common and notable problems facing anesthesiologists in this area. this study was conducted to determine the effect of a pharyngeal pack on the severity of nausea, vomiting, and sore throat among patients after ear, pharynx, and throat surgeries.   materials and methods: this randomized clinical study ...

Journal: :Journal 2009
Gildo Coelho Santos Maria Jacinta Moraes Coelho Santos Amin S Rizkalla

This article describes the different materials and techniques that are used for adhesive cementation. Particular attention is given to treatments suitable for dentin, as well as the selection of surface treatments for various restorative materials. Factors related to the durability and stability of the adhesive process, as well as the clinical and laboratory procedures required for cementation,...

2017
Kai Zheng Xiu-Chun Yu Yong-Cheng Hu Zhen Wang Su-Jia Wu Zhao-Ming Ye

BACKGROUND Intralesional excision with curettage is the standard method of giant cell tumor (GCT) treatment, but the ideal filling material after curettage remains controversial. The purpose of this study was to compare the oncological and functional outcomes which underwent cementation or bone grafting after GCT curettage around the knee. METHODS We reported 136 cases with GCTs in distal fem...

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