نتایج جستجو برای: nahco3
تعداد نتایج: 1120 فیلتر نتایج به سال:
The plumes naturally erupting from the icy satellite Enceladus were sampled by Cassini spacecraft in high-speed fly-bys, which gave evidence of salt. This raises question how salt behaves under impact, and it can best be future missions to such plumes. We present results 35 impacts onto aluminum targets a variety salts (NaCl, NaHCO3, MgSO4, MgSO4·7H2O) at speeds 0.26 7.3 km s?1. Using SEM-EDX, ...
Activated carbon (AC) is a versatile adsorbent that used in the treatment of waste water, colour, odour removal and CO2 capture. Annogeissus leiocarpus one abundant agricultural precursor can be for production activated carbon. Characterization was done to investigate some proximate parameters. The modifications were made by soaking AC 40% H2SO4 NaHCO3 24hours ration 1:3 w/v. FT-IR SEM conducte...
BACKGROUND AND OBJECTIVES Current guidelines recommend Na(+)-based alkali for CKD with metabolic acidosis and plasma total CO2 (PTCO2) < 22 mM. Because diets in industrialized societies are typically acid-producing, we compared base-producing fruits and vegetables with oral NaHCO3 (HCO3) regarding the primary outcome of follow-up estimated GFR (eGFR) and secondary outcomes of improved metabolic...
Continuous application of P fertilizers under different irrigation patterns can change soil phosphorus (P) chemical behavior and increase soil P levels that are of environmental concern. To assess the effect of long-term different irrigation patterns on soil P fractions and availability, this study examined sequential changes in soil organic P and inorganic P from furrow irrigation (FI), surfac...
The 636-bp-long cDNA sequence of OsCu/Zn-SOD (AK059841) was cloned from Oryza sativa var. Longjing11 via reverse transcription polymerase chain reaction (RT-PCR). The encoded protein comprised of 211 amino acids is highly homologous to Cu/Zn-SOD proteins from tuscacera rice and millet. Quantitative RT-PCR revealed that in rice, the level of OsCu/Zn-SOD gene expression was lowest in roots and wa...
BACKGROUND Metabolic acidosis affects both vitamin D and insulin metabolism. Vitamin D is important in modulation of both insulin secretion and insulin sensitivity in uremia. The present study examines the effect of correction of metabolic acidosis on insulin action and secretion as well as 1,25 vitamin D3 concentrations in uremic patients. METHODS Eight patients (age 18 +/- 1 year) on mainte...
OXA-58 is a class D β-lactamase from the multi-drug resistant Acinetobacter baumannii. We determined the crystal structure of OXA-58 in a novel crystal, and revealed the structure of the substrate-binding cleft in a closed state, distinct from a previously reported OXA-58 crystal structure with the binding cleft in an open state. In the closed state, the movement of three loops (α3-α4, β6-β7, a...
The present work investigates the production of sodium bicarbonate in combination with co-utilization saline brine and carbon capture, utilization, sequestration (CCUS). use ammonia traditional Solvay process could be eliminated by using a modified process. This study compared modification addition three buffering additives: Ca(OH)2, KOH, NH4HCO3. effectiveness these processes, two qualities (d...
in this research, several chemical extractants and modified olsen methods were studied in 25 surface-calcareous soils (0-30 cm) for determining available phosphorus (p) for corn (zea mays l.) plant. in this experiment, the highest correlation was obtained between extracted p by olsen and colwell methods (nahco3-extractable p) and dry weight of corn shoot (r =0.67 and 0.75, p
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