In this work we have studied transgranular cleavage and the fracture toughness of titanium hydrides by means of quantum mechanical calculations based on density functional theory. The calculations show that the surface energy decreases and the unstable stacking fault energy increases with increa...
Titanium hydride potassium perchlorate (THPP) is a well-known pyrotechnic initiator commonly utilized in the field of aerospace propulsion. The current study experimentally elucidates the effects of hygrothermal aging on the pyrotechnic combustion of THPP and proposes two methodologies for analy...
The aim of this work is to characterize microstructure of commercially pure titanium grade 2 (Ti grade 2), which is formed by volumetrically incomplete α/β phase transition. This duplex α/β microstructure is formed by cooling Ti grade 2 once the β phase is nucleated at sites where nucleatio...
The titanium dihydride (TiH2) powder metallurgy has been attracted a lot of attention, but TiH2 powder is difficult to press moulding. In this paper, the titanium hydride powder metallurgy including TiH2 and unsaturated titanium hydrides (TiH1.5) was investigated simultaneously compared with pur...
Behavior of hydrogen H in titanium hydride TiHx is studied with the help of macrokinetic modeling by the free hydrodynamic package OpenFOAM. Modeling of hydrogen in the δ-TiHx is performed taking into account the nonlinear dependence of H diffusion from both the temperature and the hydrogen con...
Hydrogen behavior in metals and alloys is of great importance since the hydrogen-metal systems used for absorption of nuclear radiation in thermonuclear energy production. Titanium hydride (TiH2) employed widely as a material for hydrogen storage due to its high capacity for hydrogen isotopes.Th...
Syringomycin E is an antifungal cyclic lipodepsinonapeptide produced by Pseudomonas syringae pv. syringae. To understand the mechanism of action of syringomycin E, a novel resistant Saccharomyces cerevisiae strain, BW7, was isolated and characterized. Lipid analyses revealed that BW7 contained o...
By a combination of 1D and 2D 1H- and 13C-NMR, FAB-MS, and chemical and enzymatic reactions carried out at the milligram level, it has been demonstrated that syringomycin E, the major phytotoxic antibiotic produced by Pseudomonas syringae pv. syringae, is a new lipodepsipeptide. Its amino acid s...
The ability of three sterols of different structure to influence the interaction of syringomycin E (an antifungal antibiotic that forms voltage dependent channels in planar lipid bilayers) with a planar lipid bilayer was evaluated. The rate of increase of bilayer conductance induced by syringomy...
SyrC, a component of the multienzyme system of syringomycin biosynthesis, has been shown to shuttle Thr/4-Cl-Thr between the thiolation domains SyrB1-T1 and SyrE-T8,9 by transiently linking it to Cys224 in the enzyme active site. We present data on the structure-function relationship in vivo of ...
The antifungal activity of the lipodepsipeptide syringomycin E from Pseudomonas syringae pv. syringae is modulated by sterols. To study the requirement of the predominant fungal sterol, ergosterol, in syringomycin E action, the sterol composition of Saccharomyces cerevisiae sterol auxotroph stra...
The lipodepsipeptide syringomycin E (SR-E) interacts with two mercury-supported biomimetic membranes, which consist of a self-assembled phospholipid monolayer (SAM) and of a tethered bilayer lipid membrane (tBLM) separated from the mercury surface by a hydrophilic tetraethyleneoxy (TEO) spacer t...
Syringomycin E (SRE) is a member of a family of lipodepsipeptides that characterize the secondary metabolism of the plant-associated bacteria Pseudomonas syringae pv. syringae. It displays phytotoxic, antifungal and haemolytic activities, due to the membrane interaction and ion channel formation...
The effects of dipole modifiers, thyroid hormones (thyroxine and triiodothyronine) and xanthene dyes (Rose Bengal, phloxineB, erythrosin, eosinY and fluorescein) on the pore-forming activity of the lipopeptide syringomycin E (SRE) produced by Pseudomonas syringae were studied in a model bilayer....
ObjectiveTo test the hypothesis that prophylactic dextrose gel administered to newborn infants at risk for hypoglycemia will increase the initial blood glucose concentration after the first feeding and decrease neonatal intensive care unit (NICU) admissions for treatment of asymptomatic neonatal...
The liquid scintillation counting of 45Ca in biological material with a new scintillant, Insta-Gel, has been tested. Aqueous acid solutions of carcass, urine and faecal containing 45Ca and up to 50 mg of stable calcium were mixed with Insta-Gel with little or no quenching effect. Non-treated hum...
Eleven widely used lipophilic formulation excipients have been screened for their skin penetration enhancing effects. The excipients tested were glyceryl tricaprylate/caprate, isopropyl myristate, glyceryl monocaprylate/caprate, decyl oleate, polyethylene glycol-6 glyceryl dicaprylate/caprate, i...
High adsorption capacity, fast adsorption rate, easy regeneration and good reusability were very important for qualified adsorbents used in removing toxic heavy metals from wastewater. Based on this, a novel adsorbent was well designed and synthesized by functionalizing D301 resin with iminodiac...
This paper reports on the investigation of the loading rate of nickel onto an iminodiacetic acid ion exchange resin (TP207XL) under the finite solution volume condition in the presence of ferrous in a batch loading system. A hybrid correlation model (McKevitt, 2012) was applied for nickel-ferrou...
In(III) was quantitatively adsorbed by iminodiacetic acid resin (IDAAR) in the medium of pH = 4.52. The statically saturated sorption capacity of IDAAR is 235.5 mg·g−1. 1.0 mol·L−1 HCl can be used as an eluant. The elution efficiency is 97.9%. The resin can be regenerated and reused without ap...
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