منابع مشابه
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...
15 صفحه اولA discussion of magnetic separation techniques for concentrating ilmenite and chromite ores
Figure 1 depicts the basic magnetic separation technologies now available in the marketplace in terms of field intensities and modes of processing. LIMS and scalper magnets are not detailed in this paper. The selection of magnetic separation technology depends on many processing factors, including particle size, and the specific assemblage of minerals and grades as well as their corresponding m...
متن کاملMineralogical and geochemical investigations of chromite ores from ophiolite complexes of SE Iran in terms of chrome spinel composition
Ten chromite ores from ophiolite complexes in SE Iran were analyzed mineralogically by XRD, chemically by XRF, and mineral chemistry by EPMA. The identified paragenesis of silicate minerals of chromite ores with the X-ray diffraction is pronounced differently. It consists of secondary phases formed as serpentine, Cr-containing chlorite (kaemmererite), chromic garnet (uarovite) with preserved pa...
متن کاملmineralogical and geochemical investigations of chromite ores from ophiolite complexes of se iran in terms of chrome spinel composition
ten chromite ores from ophiolite complexes in se iran were analyzed mineralogically by xrd, chemically by xrf, and mineral chemistry by epma. the identified paragenesis of silicate minerals of chromite ores with the x-ray diffraction is pronounced differently. it consists of secondary phases formed as serpentine, cr-containing chlorite (kaemmererite), chromic garnet (uarovite) with preserved pa...
متن کاملThe Challenge of Sustaining Long-term Care in Aging Societies: Lessons From Japan and Spain; Comment on “Financing Long-term Care: Lessons From Japan”
This article compares the provision of long-term care (LTC) in Japan and Spain, two countries with similar demographic structures but which address the provision of LTCs in very different ways. Both countries provide universal LTC. However, Japan has developed a generous benefit package of formal services for dependents to alleviate the care burden on the family, but provides no cash benefits. ...
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ژورنال
عنوان ژورنال: The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists
سال: 1942
ISSN: 0021-4825,1883-0765
DOI: 10.2465/ganko1941.27.193