Results 211 to 220 of about 86,186 (276)
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Talc Retinopathy

Optometry and Vision Science, 1991
We present five case reports of the clinical manifestations of talc retinopathy. Photographs illustrate the typical intravascular location of these crystalline deposits which are evident only after repeated injections of street drugs. Discussion includes differential diagnosis, systemic complications, and ophthalmic management of this condition.
R J, O'Brien, B L, Schroedl
openaire   +2 more sources

Talc Liver

Journal of Clinical Gastroenterology, 1987
Talc in the liver is highly suggestive of intravenous drug abuse. We report three patients in whom finding talc or talc granuloma on liver biopsy led to the diagnosis of unsuspected i.v. drug abuse. There follows a discussion of the pathogenesis, laboratory and clinical features, and liver pathology of talc liver.
M A, Molos, N, Litton, T T, Schubert
openaire   +2 more sources

Talc Retinopathy

American Journal of Ophthalmology, 1980
Twenty-three patients had bilateral intraretinal talc microemboli, which were seen on ophthalmoscopic examination. Twelve of these patients had additional retinal vascular or choroidal abnormalities in the posterior pole that were confirmed by fluorescein angiography.
D T, Tse, R R, Ober
openaire   +2 more sources

Flotation separation of chalcopyrite from talc using a new depressant carrageenan

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020
As a typical gangue mineral in many sulfide deposits, naturally hydrophobic talc needs to be depressed by adding depressants to achieve a good flotation separation.
Hao Zhou   +3 more
semanticscholar   +1 more source

Selective separation of chalcopyrite and talc using pullulan as a new depressant

, 2021
As a gangue mineral, talc is usually associated with chalcopyrite. Therefore, the depression of talc is required in the field of sulphide mineral flotation.
S. Ning   +6 more
semanticscholar   +1 more source

Effect of aluminum ions on the adsorption of carboxymethyl cellulose onto talc

Minerals Engineering, 2021
Talc is a gangue mineral of many sulfide minerals, which is naturally hydrophobic. The depression of talc is very important and challenging in sulfide ore flotation. This research introduced aluminum ions into the process of using carboxymethyl cellulose
Changbin Li   +4 more
semanticscholar   +1 more source

Selective depression of talc in chalcopyrite flotation by xanthan gum: Flotation response and adsorption mechanism

, 2020
Being a common gangue mineral in many sulfide deposits, naturally hydrophobic talc needs to be depressed by adding depressants. In this paper, xanthan gum was introduced as a selective depressant for talc.
Guangjiu Pan   +3 more
semanticscholar   +1 more source

Study on the depression mechanism of zinc sulfate on talc in chalcopyrite flotation

, 2021
Zinc sulfate is a commonly used selective depressant for zinc sulfide minerals, and a mixture of ZnSO4 and Na2CO3 is an effective combined inhibitor for talc. This study indicated that only using ZnSO4 could inhibit talc in chalcopyrite flotation and its
Saizhen Jin, Pengyu Zhang, L. Ou
semanticscholar   +1 more source

TaLc

Proceedings of the 10th ACM MobiCom Workshop on Challenged Networks, 2015
Many emerging applications and the ubiquitous wireless signals have accelerated the development of WiFi-based indoor localization techniques. However, there is one primary issue, that is the environmental dynamics will greatly undermine the fingerprint stability over time, hindering these techniques to be fully practical.
Liqiong Chang   +6 more
openaire   +1 more source

Lightweight and strong microcellular injection molded PP/talc nanocomposite

Composites Science and Technology, 2018
Lightweight is of great significance for reducing material and energy consumptions. Microcellular injection molding is an advanced technology for fabricating lightweight plastic structural components, but the deteriorated mechanical performance is a big ...
Gui-long Wang, Guoqun Zhao, Chul B Park
exaly   +2 more sources

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