نتایج جستجو برای: 464 78 percent and vegetable tanning leathers 130 45 kgf
تعداد نتایج: 16871769 فیلتر نتایج به سال:
abstract chickpea is weak in competition of weeds that damages to it at between 40 t0 60 percent. kermanshah province is one of the most important region for chickpea fields in iran. for these reosons, weed management is necessary in this crop. in order to evaluate of herbicides and stubble control on broad leave weeds control in chickpea. experiment was conducted in agricultural research stat...
OBJECTIVE To study the effect on the incidence of cancer of exposure to chemicals handled in the leather tanning industry. MATERIALS AND METHODS A case-control study was performed within a cohort of 2487 workers employed for at least six months during the period 1900-89 in three Swedish leather tanneries. 68 cancer cases (lung, stomach, bladder, kidney, nasal, and pancreatic cancers and soft ...
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
Leather is used to make various daily life goods including footwear, clothing, automobile seats, furniture, etc. from prehistoric time. Various defects can occur either due failure of controlling the factors processing or low grade raw material both. The tanned leathers are, before use, necessarily being passed through different processes re-tanning, filling, coating surface with dyes, and othe...
this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...
Yurie Okabe-Oho, Hiroki Murakami, Suguru Oho and Masaki Sasai 1,3,4 Department of Computational Science and Engineering, Nagoya University, Nagoya 464-8603, Japan, Department of Environmental Engineering and Architecture, Nagoya University, Nagoya 464-8601, Japan, Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan, and School of Computational Sciences, Korea Institute for ...
Today, due to the increasing demand for sustainable, ecological and original designs high value-added products, natural dye researchers, engineers, leather textile designers who use their imagination creativity are looking more environmental methods of dyeing designing materials. Surface design prints on materials can be done with dyes from plants which abundant in nature. The has long been kno...
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