... required to enhance the yield of the transesterification reaction The third and the final step of the process is the basecatalyzed transesterification reaction Forty grams (40 g) of de-acidified ... effect on salt-contaminated muds The thermal effect on the rheological properties of monovalent and divalent salt-contaminated muds is presented in Figs and 3, respectively The rheological properties ... ORIGINAL PAPER - PRODUCTION ENGINEERING Investigating the effect of high thermal? ??saline conditions on the rheological properties of waste vegetable oil biodiesel-based emulsion mud A P Tchameni1
Ngày tải lên: 04/12/2022, 14:56
... radiation-enhanced corrosion and grain boundary modification are related to ionization The effects of ionization on insulators are in comparison quite marked because of the excitation of electrons ... plasma The radiation intensity will depend not only on the distance from the plasma, but also in a complex way on the actual position within the machine because of the radiation streaming along the ... will then concentrate on the problems facing the use of insulators, with the radiation effects on the main physical properties being discussed, concentrating in particular on the dielectric properties
Ngày tải lên: 03/01/2018, 17:12
Effects of heat treatment on the mechanical properties of 6201 aluminum alloy wire
... billet -on- billet extrusion on a 300 ton Cincinnati Milacron hydraulic extrusion press The working parameter of billet extrusion for production of redraw rod was as follows: pressing capacity: 300 tons; ... than the tensile strength of wire samples aged without solution heat treatment, but elongation of those samples is greater than the elongation of samples aged without solution heat treatment The ... Aluminum Alloy Conductor) A comparison of the performance of the AAAC and conventional ACSR (Aluminum Conductor Steel Reinforced) conductors, AAAC has lower power losses, excellent corrosion resistance,
Ngày tải lên: 13/01/2020, 04:06
Studies on the luminescence properties of CaZrO3:Eu 3+ phosphors prepared by the solid state reaction method
... act as a donor of electrons while the two [EuCa]* defects become acceptors of electrons By thermal stimulation, electrons of the [VCa]00vacancies would then transfer to the Eu3ỵsites The results ... Eu3ỵconcentration (x) dependence of the emission intensities is shown in the Fig The concentration quenching was observed for higher doping concentration of Eu3ỵ If there is an increase in concentration ... (2 )The optical properties include the Thermoluminescence (TL) as well as Mechanoluminescence (ML) of the materials TL is the discharge of stored energy by thermal stimulation in the form of light[4]
Ngày tải lên: 04/02/2021, 05:09
Studies on the luminescence properties of cazro3 eu 3+ phosphors prepared by the solid state reaction method
... curves of CaZrO3:Eu3ỵ (3.0%) phosphor Then the vacancy [VCa]00 would act as a donor of electrons while the two [EuCa]* defects become acceptors of electrons By thermal stimulation, electrons of the ... intensities is shown in the Fig The concentration quenching was observed for higher doping concentration of Eu3ỵ If there is an increase in concentration of the lanthanide ions in a given material ... comparison of the data with the standard JCPDS le reveals that the diffraction peaks of the CaZrO3:xEu3ỵ phosphors match with those of the standard hexagonal phase with the space group of Pm-3m
Ngày tải lên: 17/03/2021, 20:23
a study on the effect of the boron potential on the mechanical properties of the borided layers obtained by boron diffusion at the surface of aisi 316l steel
... allowed modification of the available amount of boron for the formation of borided layers The main objective of the work was to establish the behavior of the mechanical properties of the borided layers ... the thickness of the boride layer is determined by the above-mentioned conditions [8] This work evaluates the influence of the boron potential on the mechanical properties of borided layers The ... because of the total amount of boron atoms interacting with the surface of the sample Additionally, the amount of available atoms of boron for the layer formation increases proportionally to the
Ngày tải lên: 02/11/2022, 08:49
Effects of rolling process parameters on the mechanical properties of hot rolled st60mn steel
... using the values of the applied load and the diameter of the indentation [125_TD$IF]Results and discussion 3.1 Data from the effect of rolling process parameters on the mechanical properties of ... investigated on the influence of finishing temperature on the mechanical properties of conventional hot rolled steel bar and discovered that detailed temperature tracking of a conventional rolling operation, ... recrystallization (both static and dynamic) The mechanical properties of the final product were determined by a complex sequence of microstructural changes conferred by thermal variations According to their
Ngày tải lên: 24/11/2022, 17:48
ic bentonites based on argentinean and brazilian bentonites part 1 influence of intrinsic properties of sodium bentonites on the final properties of organophilic bentonites prepared by solid liquid and semisolid rea
... at the study of the influence of the intrinsic properties of sodium bentonites on the final properties of the organophilic bentonites, and secondly, a comparison of two methodologies for the ... only one long alkyl chain The presence of more than one reflection in the region of the (001) basal reflection of organophilic bentonites is not well understood The first hypothesis is that the ... those of the sodium bentonites and reveal the expansion of the layers due to the intercalation of the distearyl dimethylammonium cations The micrographs not permit us to conclude whether the expansion
Ngày tải lên: 04/12/2022, 10:34
Survival and effect of exopolysaccharide producing lactobacillus plantarum yw11 on the physicochemical properties of ice cream
... hydrocarbons, ketones, and benzenes Although incorporation of? ? the? ? YW11 strain did not change the? ?basic flavor of? ?the? ?ice cream, fermentation by? ?the? ?strain played a role in reducing the? ?formation of? ?dodecane ... (1/10 volume of? ?mix) at 37°C for 16 h; FSM, addition of? ?1/10 volume of? ?strain YW11 fermented skim milk; LP, addition of? ?the? ?lyophilized powder of? ?strain YW11 (1 g/L); NS, no addition of? ?the? ?strain Unauthenticated ... inoculation (DI), addition of? ? prefermented skim milk (FSM), or addition of? ?the? ?lyophilized powder of? ?the? ?YW11 strain (LP) into the? ?ice cream mix After 4 weeks of? ?storage, viable counts of? ?the? ?YW11 strain
Ngày tải lên: 19/03/2023, 15:37
Thermal properties of the vernacular buildings envelopes: the case of the "Sassi di Matera" and "Trulli di Alberobello
... methods, the thermal conductance of the wall. With this particular type of construction of the monitored walls, it is not possible to use other methods of determination of thermal conductance considering ... the thermal behavior of the masonries under time-variable boundary conditions, that is, under a sinusoidal variation of the thermal flow and temperature on the inside--outside surfaces. The thermal ... is that these buildings succeeded in annulling the climatic oscillations of the external environment as a result of their high thermal mass. These traditional buildings are typical of the Mediterranean
Ngày tải lên: 05/09/2013, 14:58
Báo cáo hóa học: " Influence of Surface Modified MWCNTs on the Mechanical, Electrical and Thermal Properties of Polyimide Nanocomposites" ppt
... type of amino functional groups was therefore grafted on the MWCNTs by treating them with octadecylamine (C 18 H 39 N). The grafted func- tional group consists of a secondary amide attached to the ... shows the onset of the degradation tem- perature of the raw, acid and amine modified MWCNTs. In the case of as produced MWCNTs, the weight loss starts at 475 ° C, whereas in case of modified tubes the ... initial one before 400 °C is due to decomposition of the functional groups, while the other one relates to the oxi- dation of the nanotubes. A weight loss of *17% for acid- MWCNTs and *40% for amide-MWCNTs
Ngày tải lên: 22/06/2014, 01:20
Effects Of Triphenyl Phosphate (Tpp) And Nanoclay On The Mechanical Properties, Thermal Degradation Of Polymer Nanocomposite Materials And Coating Based On Epoxy Resin.pdf
... Pickering emulsions as a thermal latent curing accelerator for an epoxy/anhydride system”, Trung Quốc [22] Priyanka (2017), “Effect of Nanoclay on Thermal and Flame Retardant Properties of Phosphorylated ... [16] Thirumal Mariappan, Zhou You, Jianwei Hao (2013), “Influence of oxidation state of phosphorus on the thermal and flammability of polyurea and epoxy resin”, Trung Quốc GVHD: TS Huỳnh Lê Huy ... Flammability Handbook 2nd edition”, Hanser Publishers [9] W.K Patrick Lim (2012), “Effect of intumescent ammonium polyphosphate (APP) and melamine cyanurate (MC) on the properties of epoxy/glass fiber
Ngày tải lên: 13/04/2023, 14:03
Tài liệu A Dissertation on the Medical Properties and Injurious Effects of the Habitual Use of Tobacco pptx
... substantiate, they present imperious considerations for the publication of the address. A Dissertation on the Medical Properties by A. McAllister 3 We are not disposed to contract the circle of enjoyment; ... A Dissertation on the Medical Properties by A. McAllister The Project Gutenberg EBook of A Dissertation on the Medical Properties and Injurious Effects of the Habitual Use of Tobacco, by A. ... while the gratification of appetites, regardless of others, is the strongest feature of barbarism. We see then, even as a dictate of refinement, that the use of tobacco should be abandoned; and
Ngày tải lên: 17/02/2014, 22:20
Báo cáo khoa học: On peptide bond formation, translocation, nascent protein progression and the regulatory properties of ribosomes ppt
... linkage on the severe restriction of the space available for the passage of nascent proteins through the tunnel by the swung conformation of L22; on the conservation of the L22 double-hook; and on the ... may control the elongation of nascent chains The common sequence dependence of the elongation arrest, the existence of arrest-suppression mutations that should affect L22 conformation, and the ... functional relevance Analysis of the properties of this region illuminated a unified mechanism for the formation of the peptide bond, the translocation of the tRNA molecules and the entrance of nascent
Ngày tải lên: 23/03/2014, 17:22
Báo cáo hóa học: " Effects of NiO nanoparticles on the magnetic properties and diffuse phase transition of BZT/NiO composites" potx
... substituting the Ti ions (at the B site) Therefore, substitution of the Ni ions at the B site may result in breaking the long-range ordering, resulting in a reduction of the ferroelectric behavior with the ... increasing NiO content, confirming that the addition of NiO promoted the diffuse phase transition of the composites Huang and Tuan proposed that Ni ions could substitute the Ti ions in BaTiO3 lattices ... transition at higher NiO contents (Figure 4d) To check the effect of NiO on the degree of the diffuse phase transition, diffuseness parameter [δγ] was determined using the following expression:
Ngày tải lên: 20/06/2014, 23:20
Báo cáo hóa học: " Influence of Nanogels on Mechanical, Dynamic Mechanical, and Thermal Properties of Elastomers" pdf
... follows: Gel fraction ¼ W 2 =W 1 ð1Þ where W 1 is the initial weight of the polymer and W 2, the weight of the insoluble portion of the polymer. The results reported here are the averages of three samples. ... effect of individual particles and the second power term is the contribution of particle–particle interaction. Another definitive equation for determining the modulus of a composite that contains ... is based on the assumption that the Young’s modulus of the particulate inclusions (E f ) is greater than that of the matrix (i.e. E f ) E m ). In the present case, the Young’s moduli of the nanogel
Ngày tải lên: 22/06/2014, 01:20
research on fabrication and the physical properties of the multi-component ceramics based on pzt and the relaxor ferroelectric materials
... transition (the diffuse phase transition) and a strong frequency dependency of the dielectric properties. In addition, above the Curie temperature of several tens of degrees still have spontaneous ... and applications. From the above fact, we have chosen dissertation topic is “Research on fabrication and the physical properties 3 of the multi-component ceramics based on PZT and the relaxor ... ferroelectric materials”. The objective of the thesis is: (i) Fabrication and research the effects of Pb(Zr 0,47 Ti 0,53 )O 3 on the structure, microstructure and the physiscal properties of xPb(Zr 0,47
Ngày tải lên: 04/12/2014, 02:54
EFFECT OF INTERPHASE, THERMAL INDUCED DISLOCATIONS AND PRESENCE OF VOIDS ON THE FLOW STRESS OF METAL MATRIX NANOCOMPOSITES
... dislocation motion within the interphase regions on the overall responses of MMNCs; (2) simulate the. .. on the mechanical properties of MMNCs will be studied 1.4Organization of Thesis ... dislocation on the overall... development of thermal residual stresses and thermal induced dislocations in MMNCs and study their effects on the overall responses of MMNCs; ... of thermal residual stresses and thermal induced dislocations in MMNCs are predicted using discrete dislocation simulation The effect of thermal residual stresses and thermal
Ngày tải lên: 09/09/2015, 08:12
Effects of time of heatsetting on the tensile properties of ingeo™ poly (lactic acid) (PLA) fabric
... Effect of time of heatsetting on the linearity of load extension in warp direction of knitted Ingeo™ Poly (lactic acid) fabric Figure Effect of time of heatsetting on the linearity of load extension ... Effect of time of heatsetting on the tensile Extension EM [%] in Weft direction of knitted Ingeo™ Poly (lactic acid) [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension ... Production cycle of Ingeo™ Cargill Dow developed a patented and minimal cost continuous process for the production of PLA polymer The process begins with the continuous condensation of lactic...
Ngày tải lên: 05/09/2013, 16:10
Báo cáo khoa học: Effect of oculopharyngeal muscular dystrophy-associated extension of seven alanines on the fibrillation properties of the N-terminal domain of PABPN1 pot
... slow under the applied conditions This assumption, and the fact that seeds lose their activity upon incubation, may be responsible for the only moderate acceleration of fibril formation of N-WT by ... effect on the fibrillation properties of the most extreme disease-associated extension of seven additional alanines, fibrillation kinetics and fibril properties of N-WT were compared with those of the ... fibril formation, like other aggregation processes, is known to be a concentration-dependent reaction, the absence of nuclear inclusions in the case of these mutants may simply be due to the fact...
Ngày tải lên: 07/03/2014, 11:20