نتایج جستجو برای: ph neutralization process
تعداد نتایج: 1467197 فیلتر نتایج به سال:
The present study investigates the antacid effect of the aqueous extract of the fruit rind of Garcinia indica (GIE) by using a modified artificial stomach model. The pH of GIE (400 mg/kg and 800 mg/kg) and its neutralizing effect on artificial gastric acid was determined and compared with water and the active control sodium bicarbonate. A modified model of Vatier’s artificial stomach was used t...
In Ukraine, the condition of surface water near industrial enterprises is extremely critical. The operation leads to intensive pollution with and domestic wastewater. Therefore, improving quality treatment facilities through introduction automated control systems an urgent problem.
 For for typical cleaning processes, a software package required, which developed on basis appropriate algori...
The binding of vitamin B(12) by human gastric juice has been found to be pH dependent. Maximum binding occurs between pH 6.5 and 10. Outside this pH range the vitamin B(12)-binding ability of human gastric juice decreases and at pH below 2 or above 12.2 this drops sharply to about 10 to 15% of the maximum. Three commercial hog intrinsic factors have been found to give a similar response to pH c...
The effect of three food preservatives, sorbic acid and methyl and butyl esters of p-hydroxybenzoic acid, on the protonmotive force in Escherichia coli membrane vesicles was investigated. Radioactive chemical probes were used to determine the two components of the protonmotive force: delta pH (pH difference) and delta psi (membrane potential). Both types of compound selectively eliminated delta...
Oligodendroglioma is characterized by mutations of IDH and CIC, 1p/19q loss, and slow growth. We found that NHE-1 on 1p is silenced in oligodendrogliomas secondary to IDH-associated hypermethylation and 1p allelic loss. Silencing lowers intracellular pH and attenuates acid load recovery in oligodendroglioma cells. Others have shown that rapid tumor growth cannot occur without NHE-1-mediated neu...
acid–base balance describes the complex processes that work to maintain a stable extracellular pH for optimal cellular function. the process of balancing the production and neutralization of tissue acid provides a great challenge for newborn infants who have significantly higher rates of acid production than adults. Factors which help maintain a stable acid–base balance include buffers, the res...
This paper describes the use of pseudo-partial derivative (PPD) to dynamically linearize a nonlinear system, and aggregation is applied to the predicted PPD, resulting in a model-free adaptive predictive control algorithm for a nonlinear system. The algorithm design is only based on the PPD derived online from the input/output data of the controlled process, however it does provide bounded inpu...
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