نتایج جستجو برای: magnesium catalyst

تعداد نتایج: 81738  

Journal: :Magnesium research 2014
Bérengère J C Luthringer Frank Feyerabend Regine Willumeit-Römer

The goal of this review is to bring to the attention of the readership of Magnesium Research another facet of the importance of magnesium, i.e. magnesium-based biomaterials. A concise history of biomaterials and magnesium are thus presented. In addition, historical and current, clinical magnesium-based applications are presented.

Journal: :Information Systems Research 2012
Rohit Aggarwal Ram D. Gopal Ramesh Sankaranarayanan Param Vir Singh

C media, particularly blogs, can help companies increase the visibility of their products without spending millions of dollars in advertising. Although a number of companies realize the potential of blogs and encourage their employees to blog, a good chunk of them are skeptical about losing control over this new media. Companies fear that employees may write negative things about them and that ...

2015
Juan P. Montañez Silvina Gómez Liliana B. Pierella

The photocatalytic decomposition of 2-, 3and 4-chlorobenzoic acids (2CB, 3CB and 4CB, respectively) with TiO2 loaded on HZSM-11 zeolite was investigated. The optimum decomposition rate of 2CB was obtained with TiO2/HZSM-11(30%) (TiO2 30 wt.%) catalyst at a concentration of 1 mg mL. 2CB and 3CB decompose at similar rates, but 4CB remains adsorbed on TiO2/HZSM-11(30%) without further degradation....

2009
Ayoob Bazgir Mostafa M. Amini Yousef Fazaeli

Dowex-50W-hyodrgen ion exchange resin was used as a reusable catalyst for the synthesis of oxazoline, imidazoline and thiazoline derivatives through condensation reaction between arylnitriles and 2-aminoalcohol, ethylenediamine or 2-aminoethanthiol. This process provides several advantages such as excellent yields of the products, simple operation, convenient separation and inexpensive and recy...

2002
Martin Houze Nikola Juhasz Ignacio E. Grossmann

This paper first describes an empirical model to characterize the deactivation of a catalyst used in the production of a specialty chemical based on actual plant data. This model is then used in a novel multiperiod MINLP optimization formulation that incorporates the empirical model in order to determine the optimal catalyst replacement policy and meet time varying product demand.

Journal: :علوم باغبانی ایران 0
محمد دیلمقانی حسنلویی کارشناس ارشد جهاد دانشگاهی واحد آذربایجان غربی سیاوش همتی عسگرآبادتپه کارشناس ارشد جهاد دانشگاهی واحد آذربایجان غربی حامد دولتی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان آذربایجان غربی ولی عاقلی مغانجوقی کارشناس ارشد جهاد دانشگاهی واحد آذربایجان غربی یوسف نیکخواهی دستجردی کارشناس ارشد جهاد دانشگاهی واحد آذربایجان غربی

vineyard management, plant nutrition, irrigation, genotype and pests and diseases are effective factors quantity and quality of crops. among mentioned factors, plant nutrition has more importance and nutrient imbalance in soil can affect crop quantity and quality. grape cluster necrosis at veraison time is important disorders in vineyard, because of lack of balance between potassium and magnesi...

Journal: :Medical hypotheses 2006
George A Eby

In the rescue treatment of acute asthma, injected and inhalant magnesium are relatively weak having demonstrated value only in severe illness, although theoretical and laboratory considerations suggest that magnesium should be strongly effective as an asthma rescue agent. It was hypothesized that a mouth-lung biologically closed electric circuit (BCEC) exists capable of nearly instantly transpo...

Journal: :Asia Pacific journal of clinical nutrition 2005
Jui-Line Wang Ning-Sing Shaw Hsiang-Yu Yeh Mei-Ding Kao

The average dietary intake of magnesium is below recommended dietary allowances in many affluent Western countries. Prolonged low magnesium intake tends to result in hypomagnesaemia which might increase the risk of chronic diseases in elderly people. A national population-based cross-sectional nutrition survey, the Elderly Nutrition and Health Survey in Taiwan (1999-2000), was used to investiga...

Journal: :Pain physician 2016
Hsiao-Yean Chiu Tu-Hsueh Yeh Yin-Cheng Huang Pin-Yuan Chen

BACKGROUND Migraine attack has been associated with magnesium deficiency. Previous studies investigating the effect of intravenous and oral magnesium on acute migraine attacks and the prevention of migraine have produced equivocal findings. OBJECTIVE To evaluate the effects of intravenous magnesium on acute migraine attacks and oral magnesium supplements on migraine prophylaxis. STUDY DESIG...

Journal: :Headache 1995
A Mauskop B T Altura R Q Cracco B M Altura

Patients with cluster headaches have been reported to have low serum ionized magnesium levels. We examined the possibility that patients with cluster headaches and low ionized magnesium levels may respond to an intravenous infusion of magnesium sulfate. Thirty-eight infusions of magnesium sulfate were given to 22 patients with cluster headaches. The mean ionized magnesium level prior to 23 infu...

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