The aim of this paper is the steady state and dynamic simulations of the ammonia unit of Shiraz petrochemical complex and system behavior study versus the feed flow rate change for producing a good quality product. The ammonia unit consists of the reformer units, shift converter units, carbon dioxide absorption unit, methanation unit, and ammonia synthesis unit. For this purpose, in the first s...

The effects of Saccharomyces cerevisiae supplementation (6.6×10(8) cfu) and anhydrous ammonia treatment (3%) of wheat straw (WS) were investigated on in-situ dry matter (DM) degradability, and on rumen fermentation and growth performance of lambs. Rumen-fistulated Menemen sheep fed a diet with and without live yeast were used to assess the DM degradability characteristics of WS and ammonia-trea...

Ultraviolet spectra of the northern and southern hemispheres of Jupiter taken with the Hubble Space Telescope Faint Object Spectrograph (FOS) in May 1992 and June 1993 have been used to derive the altitude profiles of NH3 in the vicinity of the tropopause. For a given pressure level, it is shown that the vertical profile of ammonia varies with latitude and the atmospheric feature being observed...

Market vegetable waste is the remains of vegetables that are not sold, result weeding, or parts used for human consumption. This study aimed to determine effect fermentation time on nutrient composition, pH value, total acid, and ammonia market juices. a method with cabbage, mustard greens, carrots, tomatoes as well 8% salt additives 7.7% molasses. completely randomized design (CRD) 4 treatment...

To the Editor: I have read the paper by Phelps, Hoffman, and Raybaud "Factors Which Affect Cerebral Uptake and Retention of NH3" (Stroke 8: 694, 1977) with considerable interest, because of my own concern with cerebral ammonia metabolism. There are several questions that I would like to ask concerning their paper. What was the concentration of the ammonia in the test bolus? If it was 10 moles p...

The preparation, structure and spectral characteristics o f intensely colored salts of 2-hydroxyim ino-l,3-indandione with am m onia and amines are described. The crystallization o f the salts takes place with a high yield. All the salts fluoresce in DM SO. M N D O calculations show that the form ation o f an anion from 2-hydroxyim ino-l,3-indandione is associated with substantial alterations i...

As environmental constraints become more important issues for the animal industry, selecting feed ingredients that yield good animal performance but also minimize environmental impact of animal production becomes critical. The objective of this research was to identify which compositional features would be desirable for soybean meal to maximize nutritional value and minimize animal waste. Eight...

THE production of ammonia as their main nitrogenous end-product by flesh-fly larvae is now well known. The mechanism of its production however is still obscure [Messer and McLellan, 1935]. Hobson [1931] for instance was unable to find any evidence of deamination of glycine at PH 6-8 by aqueous extracts of Lucilia sericata larvae. One of us [Brown, 1935] carried out the same experiment using lar...

1,3,4,5,6,11a-Hexahydro-7E-2-benzothionine 5, which is a [2,3] sigmatropic rearrangement product of 2-phenyltetrahydrothiopyranium 1-methylide 8, has been synthesized by reaction of 1-methyl-2phenyltetrahydrothiopyranium triflate 3 with sodium amide in liquid ammonia or by the fluoride ioninduced desilylation of trans-2-phenyl-1-[(trimethylsilyl)methyl]tetrahydrothiopyranium perchlorate trans-7...