نتایج جستجو برای: leuco dye

تعداد نتایج: 40730  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده فنی 1391

در دهه های اخیر، حساسیت های جامعه نسبت به حفاظت از محیط زیست افزایش یافته است.به سبب ضرر کارخانه های شیمیایی روی محیط زیست روز جهانی محیط زیست به وجود آمد .اگر چه واکنش بخشی از قسمتهای جهان شدید تر وبیشتر به مناطق دیگر است .کارخانه های ساخت رنگ قسمت کوچکی از همه ی کارخانه های شیمیایی هستند.رنگ ها و رنگدانه ها بیشترین ماده آشکار هستند.آشکار بودن رنگ می تواند دلیل کمتر رها ساختن آنها به داخل محیط...

Journal: :journal of lasers in medical sciences 0
mostafa mirshams shahshahani tehran university of medical sciences, razhi hospital amirhooshang ehsani tehran university of medical sciences, razhi hospital pedram noormohammadpour immuno-bullose research center, department of dermatology, tums, razi hospital fatemeh gholamali tehran university of medical sciences, razhi hospital

introduction: basal cell carcinoma (bcc) is the most common cutaneous malignancy. proffered treatment for these lesions is surgery. based on patient’s age, drug allergies, and place of lesions, surgery may not be the best option, and alternative treatments should be considered. pulsed dye laser (pdl) may be a good alternative therapy. the aim of the present study was to determine the effectiven...

Journal: :iranian journal of materials science and engineering 0
f. sakhaei materials and energy research center (merc) e. salahi materials and energy research center (merc) m. eolya institute for color science and technology (icrc) i. mobasherpour institute for color science and technology (icrc)

up to now, lots of materials such as active carbon, iron, manganese, zirconium, and metal oxides have been widely used for removal of dyes from contaminated water. among these, ferrite nanoparticle is an interesting magnetic material due to its moderate saturation magnetization, excellent chemical stability and mechanical hardness. graphene, a new class of 2d carbonaceous material with atom thi...

Journal: :archives of hygiene sciences 0
faranak shaghayeghi toosi department of chemistry, neyshabur branch, islamic azad university, neyshabur, khorasane razavi, iran. malihesadat hosseiny department of chemistry, neyshabur branch, islamic azad university, neyshabur, khorasane razavi, iran. ali joghataei student research committee, qom university of medical sciences, qom, iran. foad shaghayeghi toosi young researchers and elite club, neyshabur branch, islamic azad university, neyshabur, khorasane razavi, iran.

background & aims of the study: dyes are one of the widespread chemicals which may have many adverse effects on life cycle. thus, this study was conducted to survey the rb19 dye removal efficacy from aqueous solution, using the sio2 nanoparticles. materials and methods: this study was an experimental-lab study. the batch adsorption system were utilized to evaluated the rb19 dye removal efficien...

Journal: :iranian journal of health sciences 0
mansooreh dehghani department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, iran razieh shabestari amir anushiravani narges shamsedini

abstract background and purpose:the main objectives of this research were to evaluating the application of electrocoagulation process for 198 dye from the aqueous phase and determining the optimum operating conditions to the dye removal using aluminum and iron electrodes. materials and methods:the present study was conducted in bench-scale. the spectrophotometer dr 5000 was used to determine th...

Journal: :Heritage 2023

This paper discusses colorants found in Tumulus MM, the tomb of King Midas or his father, at Gordion, capital Phrygian kingdom. Chromophores, colorants, and auxiliaries are preserved largely independent textiles they once colored. The MM now fragmentary due to degradation processes that occurred inside chamber. For DHA 26 (Vienna, Austria, 2007), we discussed a group golden-yellow fragments fro...

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