نتایج جستجو برای: kaolin

تعداد نتایج: 2215  

Journal: :Thorax 1984
E B Altekruse B A Chaudhary M G Pearson W K Morgan

Kaolin is removed from underground seams in the mining area to a processing area, where it is sliced, dried, and pulverised to make the finished product. A study was undertaken to determine the dust concentrations in various work areas and to assess the prevalence of radiographic and pulmonary function abnormalities in 65 workers at a Georgia kaolin mine. Respirable dust concentrations were hig...

Journal: :Scientific American 1891

Journal: :CNS neuroscience & therapeutics 2013
Zhi-Bin Wang Ye Tu Wei-Ye Liu Ping Ke Bei-Lei Tao Ling Li Li-Chao Zhang

Motion sickness in rodents could be induced with vestibular stimulation from rotation [1]. However, rats and mice could not nauseate and vomit due to the powerful barrier between the stomach and the esophagus [2]. Instead, they exhibit pica behavior (eating of kaolin), which has already been thought as an alternative to nausea and vomiting in rats [3]. Nonetheless, no significant increase in ka...

Journal: :علوم باغبانی ایران 0
علی قرقانی استادیار، دانشکدۀ کشاورزی، دانشگاه شیراز سعید عشقی دانشیار، دانشکدۀ کشاورزی، دانشگاه شیراز یاسمین خواجه نوری کارشناس ارشد ، دانشکدۀ کشاورزی، دانشگاه شیراز مجید راحمی استاد، دانشکدۀ کشاورزی، دانشگاه شیراز

this study was carried out to examine the effects of kaolin spray for reducing the adverse effects of high radiation and temperature, especially on fruit sunburn in apple. treatments were four concentration of kaolin (0, 2, 4, and 6%) and two important and commercial apple cultivars in fars province; ‘golden delicious’ and ‘starking delicious’. trees physiological parameters, fruit sunburn and ...

2016
Kianoush Barani

Traditional processing of kaolin is achieved by dispersion of the mined ore and classification by means of multistage hydrocyclones. The inefficiencies inherent to cyclones produce a middling product that is commonly disposed back to the quarry. In this research recovery of kaolinite from tailings of the Zonoupz kaolin washing plant, which is located in Iran, was investigated by cationic flotat...

Journal: :Postgraduate medical journal 1987
B Kirkham R Cowell J Rees

A 34 year old man, registered disabled as a result of muscle weakness, was admitted to hospital because of increasing weakness. He had profound hypokalaemia and admitted to taking up to 1400 ml of kaolin and morphine mixture daily. After considerable potassium replacement muscle power recovered completely. The hypokalaemia is likely to have been caused by the combination of liquorice extract an...

2016
Daniel J. Gardner Daniel Joseph Gardner Brian K. Meyer Daniel M. Deocampo Brian Meyer

The mining industry located along the fall line region of central Georgia has been and remains as one of the largest global exporters of the clay mineral kaolinite. Among the kaolin deposits in that region, the Cretaceous Buffalo Creek formation and the Eocene Jeffersonville member contain the most commercially viable kaolin to extract and process for resale. The minerals of the sand and silt f...

2015
SAEEDEH HASHEMIAN

The adsorption of 2-picoline (PC) and 3-Amino-2-picoline (APC) onto kaolin and organomodified kaolin was investigated. Tetraethylamoniumiodide (TEAI) was used as modification reagent. The sorbent was characterized by FTIR, XRD, SEM and BET methods. The influence of various parameters like contact time, PH, adsorbent dose and initial concentration of PC and APC was studied. The adsorption kineti...

Journal: :Physical chemistry chemical physics : PCCP 2015
Yongchun Liu Chong Han Jinzhu Ma Xiaolei Bao Hong He

In order to obtain reliable kinetic parameters, it is required to measure the reaction kinetics of important heterogeneous reactions at ambient relative humidity (RH). In this study, the uptake coefficients and HONO yields for the heterogeneous reaction of NO2 on kaolin and hematite were measured at RH from 7% to 74% and at ambient pressure in the dark using a coated-wall flow tube reactor. The...

Journal: :Applied microbiology 1970
T P Monath H S Lindsey J G Nuckolls W A Chappell B E Henderson

Human sera were treated with kaolin, acetone, and dextran sulfate to determine the best method for removing nonspecific hemagglutination inhibitors. Results indicated that on surveys for group A, group B, and some group C arbovirus HI antibodies, dextran sulfate treatment of sera could be used effectively. This method, however, has limited usefulness for detecting HI antibody for a number of ar...

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