نتایج جستجو برای: raw and mineral materials
تعداد نتایج: 16890923 فیلتر نتایج به سال:
the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...
Food influences the health of a population to a great degree, therefore, the control of food quality is an important government activity, and is legislatively regulated. Raw food materials quality is a complex term that includes nutritional, sensory, hygienictoxicological, and technological points of view. Food has to fulfill all quality requirements, but above all, it has to be safe. High qual...
A number of novel adsorbents are being investigated in search of an alternative to Commercial Activated Carbon (CAC). Several methodologies are being followed in the preparation of adsorbents from their raw materials. The raw materials used for the preparation of novel adsorbents are broadly classified under three main categories: (i) Agricultural Wastes (AW) (ii) Industrial Wastes (IW) and (ii...
The energy intensive and CO2-generating nature of commercial mineral wool glass production necessitates advances changes in materials processes. derivation raw from waste products arising biomass generation offers the possibility a two-fold environmental benefit: partial replacement carbonate minerals production, leading to lower CO2 release during melting; utilisation valorisation byproducts w...
چکیده ندارد.
Mineral raw materials prices have been shown to be affected by macroeconomic factors such as aggregate demand and commodity-specific (e.g., supply shocks). In addition, it has that certain mineral material co-move, meaning they behave similarly during expansion contraction phases of the international business cycles. order assess behavior similarity different materials, we propose a method util...
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