食品级增塑剂乙酰化单甘油脂肪酸酯（ACETEM）的应用研究
以纯天然植物油甘油和椰子油等原料合成具有不同碳链长度的植物油基环保型增塑剂乙酰化单甘油脂肪酸酯(ACETEM).通过红外光谱(FT-IR)、气质联用(GC-MS)表征手段测定其结构,并利用热重分析仪(TGA)测定其本身及PVC试片的热稳定性能,对其PVC试片的迁移率和挥发损失率研究,探索了其与PVC的相容性能,结果表明,ACETEM具有较好的热稳定性能,并且与PVC具有较好的相容性,将其应用在食品包装材料上具有很好的前景.
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Magnetotransportna svojstva anizotropnih organskih vodiča (TMTTF)2ReO4 i α-(BEDT−TTF)2 I3
U ovom su radu izloženi rezulti mjerenja otpora, magnetootpora i Hallovog efekta na anizotropnim organskim vodicima (TMTTF)2ReO4 i α- (BEDT−TTF)2
Protein Engineering Hydrophobic Core Residues of Computationally Designed Protein G and Single-Chain Rop: Investigating the Relationship between Protein Primary structure and Protein Stability through High-Throughput Approaches
The sequence-structure-stability relationship is a key problem in the field of protein science.Although a large amount of research has been working on it in various methods and aspects, it is still not completely understood.Recently, the cooperation between rational design and combinatorial library methods bring new i…
Modification de surface de nanodiamants par des groupements phosphorés
Les nanodiamants font l'objet d'un interet croissant dans differents domaines tels que la physique (grâce aux proprietes photo-physiques dues aux defauts azotes dans la maille cristalline), la chimie des materiaux (synthese de nouveaux materiaux composites avec des performances mecaniques accrues), la tribologie (lubr…
Вивчення структурної будови біодеградуючих плівок для виготовлення екопаковань
The relevance of the usage of biodegradable polymeric materials for environmental packaging manufacturing have been examined in this article. The results of the studies of the structure of the films based on polyethylene of high and low density combined with an oxo-biodegradable additives and without them with the use…
Chemical structure modeling with kernel methods
Small molecules that have the ability to alter the biological response of a cell or disease state are of significant interest as drug candidates. One approach to the design of such molecules using kernel methods is through a map of molecules to a feature space induced by a kernel, where the predictions of the molecula…
Fabrication of Electrospun Composite Nanofibers Containing Carbon Nanotubes for Reversible Hydrogen Storage Applications
In this research, composite nanofibers containing carbon nanotubes (CNT) were prepared by using electrospinning technique and hydrogen adsorption/desorption isotherms were carried out by a Sieverts apparatus at room temperature. The SEM analysis of the nanofibers revealed that the deformation of the nanofiber increase…
Characterization of a scalable fabrication process for supported or suspended devices made of CVD graphene
Nous vous proposons un procédé de fabrication pour obtenir des dispositifs de graphène suspendu avec rendement élevé (~ 90%). Surtout, nous nous concentrons sur l'intégrabilité de procédé ainsi que sa compatibilité avec les technologies existantes de silicium. Pour répondre à ces questions, nous avons développé un sys…
Microstructural Feature Analysis of X65 Steel Exposed to Ripple Load Testing Under Near Neutral pH Conditions
Newly designed miniature Compact Tension (CT) specimens, designed according to standard ASTM dimension ratios, and machined out of previously in-service X65 pipeline steel were exposed to super-imposed cyclic loading at high mean stresses in NS4 solution to determine the behaviour of X65 steel to ripple loading under…
Assessment of Circumferential SCC on an Ethane Pipeline
This paper describes the analysis conducted on circumferential SCC found on a high vapour pressure ethane pipeline. The damaged section of pipe was located near a road crossing and was cut out before failure. A total of 146 cracks were identified with lengths ranging from a 1 mm to 50 mm. Three different techniques we…
Simultaneous Presence of Two Different Magnetic Structures in a Single-Crystalline Solid? Hydrogen-Distribution-Dependent Magnetism
In terms of density functional theory calculations, we explored the reason why the neutron diffraction patterns of a crystalline solid, NaFe2(H3O2)(MoO4)2, are explained by invoking the simultaneous presence of two widely different magnetic structures. The partitioning into OH and H2O groups of the "H3O2" units, which…
Small-Scale Testing to Characterize ERW Seam Properties in Response to NTSB Recommendation P-09-1, Arising From the Carmichael, MS Rupture
On November 1, 2007, a liquid propane pipeline ruptured near Carmichael, Mississippi. Several pipeline industry experts collaboratively concluded the likely origin of the failure was a defect in the longitudinal electric resistance welded (ERW) seam.[1] These experts also noted that a seam-integrity assessment did not…
Assurance networks in qualitative analysis of projects of technical diagnostics of portal cranes
The main means of mechanization of technological processes of the functioning of sea and river ports, dockyards are ship repair enterprises are the lifting machines, and in particular, portal cranes (PC). Operability, performance and mode of operation of such cranes depend on their technical condition which is determi…
Etude ab-initio des chalcogénures de métaux de transition IVBX 2 ou VBX 2 (X = S, Se ou Te).
Thermoelectricity is a new field of research which can provide a clean alternative energy, to reduce the dependence in traditional fossil energies. From a technological point of view, the challenge is summarized to choose power materials which store optimal quantity of electrical energy. The transition metal dichalcog…
A mini review on the chemistry and catalysis of the water gas shift reaction
Water gas shift (WGS) reaction is a chemical reaction in which carbon monoxide reacts with water vapor to form carbon dioxide and hydrogen. It is an important reaction industrially used in conjunction with steam reforming of hydrocarbons for the production of high purity hydrogen. Grenoble et al examined the roles of…
Assessment of performing an MST strike in Tank 21H
Previous Savannah River National Laboratory (SRNL) tank mixing studies performed for the Small Column Ion Exchange (SCIX) project have shown that 3 Submersible Mixer Pumps (SMPs) installed in Tank 41 are sufficient to support actinide removal by MST sorption as well as subsequent resuspension and removal of settled so…
Computational modelling of the interaction between localised corrosion and stress
Despite the numerous studies that have been reported in the literature, modelling localised corrosion still presents significant challenges, especially when accounting for the complex processes of metal dissolution, passivation and repassivation, IR drop, mass transport, hydrolysis and salt precipitation, all of which…
Containment System of Generation 3+ Nuclear Power Plants
This work explains the basic safety principles which are at the basis of the design of nuclear power plants, focusing on containemt system: the phisical barrier that separates the reactor and its components from external environment. At the beginning of the civil use of nuclear technology, containment was designed to…
Aharonov-Bohm effect in clean strong topological insulator wires
Surface electrons of strong topological insulator wires acquire a Berry phase difference of $π$ on orbiting the wire. This can be detected in response of clean wires (whose Fermi level is tuned to the Dirac point) to the presence of the Aharonov-Bohm flux. Specifically, at half-odd integer applied flux (in units of $h…
Drastic Minimization in the van der Waals Interaction with the Bottom Epitaxial Graphene Layer by the Diels-Alder Surface Chemistry of the Top Graphene Layer
The Diels-Alder surface modified top epitaxial graphene layer, with newly created pair of sp3 carbon centres, results in abrupt minimization of interlayer van der Waals interactions between two stacked graphene planes, and escapes the wafer during post-reaction manipulation stage, leaving the layer under it almost pri…