نتایج جستجو برای: dye extraction

تعداد نتایج: 205249  

Journal: :International journal of innovative technology and exploring engineering 2021

In countries like India there is always a scarcity for fresh water along with it polluting the available sources major threat. The bodies are affected by eutrophication. It phenomenon in which algae forms layer above surface and does not allow sun light to enter into body. Due this reason organisms present body gets ecosystem damaged. taken from dropped as waste garbage or let dry out on roads....

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1393

هدف: هدف از این مطالعه ارزیابی تاثیر آماده سازی سطح با کلرهگزیدین 2%و اتانول بر ریزنشت ترمیم های کامپازیتی به عاج می باشد. مواد و روش ها: بر روی 88 دندان پرمولر حفرات کلاس ii با مارژین عاجی تراشیده شد و به چهار گروه تقسیم شد.ابتدا حفرات اچ و سپس شستشو داده شد و سطح آن خشک گردید. بعد از آن در گروه اول (کنترل) هیچ گونه آماده سازی انجام نشد.در گروه دوم با استفاده از اتانول 100% برای 60 ثانیه و در...

Journal: :Journal of cataract and refractive surgery 2004
Joseph San Laureano Minas T Coroneo

A 1-step method for staining the anterior lens capsule with trypan blue is described. The dye is instilled via a paracentesis port at the start of cataract extraction. As aqueous humor is allowed to exit the anterior chamber (AC), which consequently shallows, the resulting pupil block confines the dye to the AC. An ophthalmic viscosurgical device (OVD) is used to flush dye-stained aqueous from ...

2004
Tracy E. Sharp Peter J. Wisoff

A two-stage dye amplifier design has been developed to amplify tunable, blue-green, subpicosecond dye laser pulses which are generated from a hybrid synchronously modelocked dye oscillator directly (800 fs) or shorter to 200 fs by a fiber compressor stage. This system has achieved single pulse energies of 2 mJ, with an amplified spontaneous emission content of less than 0.1%. Using 40 mJ of the...

Journal: :Talanta 2008
Yahya S Al-Degs Amjad H El-Sheikh Mohammad A Al-Ghouti Bahram Hemmateenejad Gavin M Walker

A simple and rapid analytical method for the determination of trace levels of five sulphonated and azo sulphonated reactive dyes: Cibacron Reactive Blue 2 (C-Blue, trisulphonated dye), Cibacron Reactive Red 4 (C-Red, tetrasulphonated azo dye), Cibacron Reactive Yellow 2 (C-Yellow, trisulphonated azo dye), Levafix Brilliant Red E-4BA (L-Red, trisulphonated dye), and Levafix Brilliant Blue E-4BA ...

Journal: :Journal of endodontics 2008
Ahmed Abdel Rahman Hashem Ehab E Hassanien

The ability of two mineral trioxide aggregate (MTA) compounds and Intermediate Restorative Material (IRM) to seal large furcation perforations were evaluated using a dye-extraction leakage method. The furcation perforations were repaired with and without the use of internal matrix before placement of repair material. Eighty extracted human mandibular first molars were divided into positive (n =...

Journal: :Journal of endodontics 2006
Hatim A Hamad Patricia A Tordik Scott B McClanahan

The purpose of this study was to evaluate the ability of gray and white ProRoot MTA to seal furcation perforations in mandibular molars using a dye extraction leakage model. Sixty-four mandibular molars were randomly divided into four experimental groups. Six teeth with perforations were used as positive controls and six teeth without perforations were used as negative controls. Perforations in...

Journal: Pollution 2017
A. Borthakur D. Tiwary D.B. Pal P. Srivastava P.K. Mishra Pardeep Singh, R. Singh Sh. Awasthi

This study presents the natural dye recovery from various biodegradable temple and household wastes. The raw material for colour extraction consisted residual flowers and garlands from various temples as well as onion and vegetables peels from vegetable markets, university hostels, and households, which were washed, dried, crushed, and sieved. The extracted natural colours were produced by mean...

ژورنال: گلجام 2016
اکبری, احمد, تقی زادۀ بروجنی, ربابه, قره بائی, عبدالسلیم,

Today, much research is conducted on the use of new methods of dyeing textiles, all of which are trying to select an appropriate method of reducing the usage of energy and chemicals in a way to produce cost-effective products with an acceptable uniformity. One of these methods is the use of ultrasonic waves. Since the dyestuff is extremely limited by the plant cell membrane, extraction met...

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