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Because of excellent electrical properties, epoxy resin is widely used in packaging and casting power equipment. Moisture and temperature in the environment are inclined to seriously affect the insulation tolerance of epoxy resin. This work focuses on the aging characteristics of epoxy resin in hygrothermal environment. The effect of hygrothermal aging on the properties of epoxy resin was deeply studied...
Focused on the issue that making satellite CAD models is time-consuming, which is caused by its complex structure and various components, the assembly modeling technology for satellite virtual assembly is studied. The satellite components are stored in a tree structure. Each node in the tree represents a satellite component. The assembly relationship between components is represented by the parent-child...
The possibility of the inhibition of virus activity due to the local field enhancement effect near the surface is studied. Interaction in the system “virus-surface” is considered; the local field distribution and the absorption potential in the system have been calculated. The influence of the nanoobjects on the local field and adsorption potential has been studied. As the nanoobjects the infinite...
Due to recent research and development activities in solar-based air-conditioning systems, the GCC engineering community has been investigating alternative solutions to assess the feasibility towards adopting solar absorption refrigeration as a sustainable air-conditioning approach in hot environments. This study investigates the feasibility of two solar air-conditioning technologies, namely solar...
Essentialness is the spirit of the present day world. In perspective of the negative normal impacts and compelled wellsprings of fossil energizes, experts are logically focusing on renewable sources, particularly sun vitality as a result of its cleanliness and basic openness. Nearby photo voltaic structures, daylight based warm essentialness has been used over the span of twenty years to meet the...
Gas sensor with high molecular selectivity is highly demanded in many fields of industry or disaster relief. Molecularly imprinted polymer (MIP) can recognize target gas by specific adsorption for template molecule. In this study, a novel chemiresistor, gas sensor which combined with MIP and conductive nanoparticles has been developed. The gases were distinguished based on molecularly structure by...
We studied adsorption state of water molecules in a porous coordination polymer (PCP) using infrared spectroscopy. We observed two absorbance peaks below 4% relative humidity (RH) that originate from OH stretch modes of adsorbed water molecules. Their peak frequencies and areas indicate that one of the OH is free, and the other is hydrogen bonded. We also found that Free-OH plays a role of water attraction...
Neutron reflection has been used to explore the action of C12E5 on olive oil films coated on SiO2. The measurements were made at the solid/solution interface at the CMC of C12E5 with the oil films fixed at 50 Å and 200 Å dry thickness. It was found that the total amount of C12E5 interacting with the oil was higher for the thicker film and that the ratio of absorption to surface adsorption was 32....
Neutron reflection has been used to explore the action of C12E5 on olive oil films coated on SiO2. The measurements were made at the solid/solution interface at the CMC of C12E5 with the oil films fixed at 50 Å and 200 Å dry thickness. It was found that the total amount of C12E5 interacting with the oil was higher for the thicker film and that the ratio of absorption to surface adsorption was 3 2...
The failure to remove tetracycline (TC) in most conventional wastewater treatment systems results in the discharge and accumulation of TC in the environment, which in turn, increases the potential for developing TC-resistance in naturally occurring microorganisms. Thus, there is a need to explore other processes that can enhance TC degradation during wastewater treatment. In this study, we investigated...
This study provides a theoretical basis for use of Auricularia polytricha hyphae as an adsorbent for removal of heavy metal cadmium from aqueous solution. Adsorption effect was studied from suitable pH, application dosage, biosorption time and the initial concentration of cadmium. Little biosorption of metalions was observed for pH < 3.0. The cadmium removal capacity increased very sharply with...
A Nnao adsorption solar power cooling generator unit is design, built, and operated under the climate of Mutah University. The adsorption solar power consists of the generator, condenser, vacuum pump, and evaporator (cold chamber). The activated carbon methanol is set as adsorption pair. The thermal impact of the modified paints on the collector performance by adding certain nano-materials to the...
Curcumin, a non toxic yellow food additive, has been used here to sensitize TiO2 in photodegradation of methyl orange contaminant in water with solar light. Using natural dyes is a promising replacement for the hazardous heavy metal-based systems, such as CdS and Ru-compounds, in sensitizing wide band gap semiconductors. Naked (TiO2/Curcumin) and activated-carbon supported (AC/TiO2/Curcumin) catalyst...
The adsorption of two reactive dyes, Orange 16 (RO16) and a Reactive Red 120 (RR120) by Mg/Al-NO3 layered double hydroxide in single and binary mixture (1:1 ratio) was conducted in a batch mode. Spectrophotometric method using first order derivative and zero crossing was applied to analyse colour removal of RO16 and RR120 dyes from solutions. The effects of contact time in single and binary systems...
The large amount of fossil fuel consumption has increased Hg emission into atmosphere and the related Hg emission has attracted more and more attention. Based on the disadvantages of active carbon sorbent injection, this research has proposed using low-cost calcium-based sorbent which prepared by Ca(OH)2 and fly ash to capture mercury in flue gas. Experiments were carried out in a fixed-bed facility...
The stable adsorption complex is synthesized by Zn(II) and a inclusion complex of β-cyclodextrin resin and 8-hydroxyquinoline with epichlorohydrin as crosslinking agent. The adsorption complex was used as an adsorbent to study its adsorption performance on trace Zn(II) in water by atomic absorption spectrophotometry. The experiment researched adsorption and elution conditions and enrichment factor,...
In this paper, the adsorption effect of CO2 at 5 different MDEA-TETA mix ratios, and the optimum ratio is MDEA: TETA=1∶9. More study was done on the absorption kinetics under the optimum ratio to draw the reaction order and the average activation energy. The results are as follows: the activation order n=1.22, the reaction rate constant K'=0.28.
The experiment was orthogonal test by Na-bentonite as raw material, C12 alkyl carbon chain length of the alkyl glucoside quaternary ammonium compound and AlCl3 ·6H2O as modifier, the index of ammonia and phosphorus removal rate. It is studied on main factors such as solvent / sodium bentonite ratio of L/s, the amount of aluminum modifier Al, the amount of organical modification Me and the modified...
Granite aggregate can be used in the construction of asphalt pavement. Through the experimental study, the relationship of granite microstructure and its abilities of strength, water absorption and adhesion are given in this paper. The factors that affect the compressive strength of granite rocks include rock structure, mineral composition, weathered degree of the rock, cracks and phenocryst. The...
The plunger pump which once pumped water was tried to transport crude oil. Because of the big crude oil's dynamic viscosity, the plunger pump's self-absorption characteristic decreased, and the plunger pump's flow rate and efficiency reduced, the noise increased. Therefor, an axial-flow pump was designed by streamline method, which poured crude oil into the plunger pump for enhancing the energy of...
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