The safe handling of bulk low-density nanomaterials

the effect of traffic density on the accident externality from driving the case study of tehran

در این پژوهش به بررسی اثر افزایش ترافیک بر روی تعداد تصادفات پرداخته شده است. به این منظور 30 تقاطع در شهر تهران بطور تصادفی انتخاب گردید و تعداد تصادفات ماهیانه در این تقاطعات در طول سالهای 89-90 از سازمان کنترل ترافیک شهر تهران استخراج گردید و با استفاده از مدل داده های تابلویی و نرم افزار eviews مدل خطی و درجه دوم تخمین زده شد و در نهایت این نتیجه حاصل شد که تقاطعات پر ترافیک تر تعداد تصادفا...

the effect of creative writing instruction on lexical density of advanced efl learners writing

چکیده ندارد.

Optimizing the bulk modulus of low-density cellular networks.

We present an alternative derivation of upper-bounds for the bulk modulus of both two-dimensional and three-dimensional cellular materials. For two-dimensional materials, we recover exactly the expression of the Hashin-Shtrikman (HS) upper-bound in the low-density limit, while for three-dimensional materials we even improve the HS bound. Furthermore, we establish necessary and sufficient condit...

Safe handling of radio-isotopes.

Bulk Density of Lactose Powders Under Low Consolidation Stresses

In the food and pharmaceutical industries, the shear testing protocol developed by Jenike in 1964 has been commonly used to characterize powder flow. The protocol requires the measurement of the stress required to shear a powder bed under a series of normal consolidation stresses and the consolidated bulk density. In this work, we report the bulk density of thirteen milled lactose powders of di...