Materials Literature
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Because signal of leakage current is rich in messages which can suggest the running state of the insulator,we experimentally researched AC artificial pollution of single XP-70 insulator in the artificial fog chamber in our Laboratory,and investigated the effects of three kinds of equivalent salt deposit density(ρESDD)…
The specific heat capacity of poly(lactic acid)(PLA)was measured from 40 ℃ to 180 ℃ obtained by DSC;The thermal conductivity and diffusivity of PLA in different injection processes were investigated using TPS.It was found that the specific heat capacity of PLA would change with the temperature which leads to the diffe…
In order to save weight in a certain engine application the possibility of replacing the currently used material with cast Ti-6Al-4V is investigated here. The working environment for this particular engine part is pure hydrogen gas at high pressure. Therefore selected mechanical properties such as tensile and low cycl…
Two kinds of deinking processes,neutral deinking process and alkaline deinking process,were used for old newspaper(ONP) deinking.Olympus inverted biological microscope was used to analyze fiber and ink particles dispersing behaviors in the deinking system.Waste-paper fiber structures before and after deinking were cha…
Quasi-static axial compression tests were conducted on two types of empty aluminum alloy tubes(circular and square) and five types of aluminum foam filled tube structures(foam-filled single circular and square tubes,foam-filled double circular and square tubes and corner-foam-filled square tube).The load-deformation c…
Fe-based self-fluxing alloy coating was prepared on 1045 steel by using a supersonic plasma spraying device.Fatigue wear behavior of the sprayed-coating was investigated on a ball-on-disk tester.The process of fatigue wear was monitored by acoustic emission technology.Damage of the coating at different fatigue wear st…
The rapid development of electrolytic manganese industry brought us benefit,but it also brought a lot of electrolytic manganese slag which have caused many environmental problems.The treatment and disposal of electrolytic manganese slag has become a research hotspot in the fields of environment protection.In this pape…
The genetic diversity of 43 individuals of Mytilaria laosensis populations in Guangxi province was studied using inter-simple sequence repeat(ISSR) markers.The results show that the general level of Mytilaria laosensis natural population genetic diversity in Guangxi is high.The genetic diversity level of four populati…
C/C composites can be jointed to super-alloy GH3044 with Ni/Ti interlayer by partial transient liquid-phase(PTLP) bonding under vacuum.Microstructures and element distribution were characterized by SEM and EDS.Interfacial structure of Ni/GH3044 diffusion layer + residual Ni layer + Ni-Ti intermetalics + reaction layer…
Abstract The purpose of this study is to investigate the relationship between radiation origin and health professionals, and to reduce exposed dose of radiation through efficient management. Increasing exposed dose of radiation to health professionals are caused by the increase of PET/CT use and a radioactive isotope.…
Consider a pair of $\textit{interlacing regular convex polygons}$, each with $2(n + 2)$ vertices, which we will be referring to as $\textit{red}$ and $\textit{black}$ ones. One can place these vertices on the unit circle $|z | = 1$ in the complex plane; the vertices of the red polygon at $\epsilon^{2k}, k = 0, \ldots…
The charge-carrier mobility of an organic semiconducting material determines the material potential applications in devices. The investigation on mobility of organic material plays a significant role in improving the performance of organic device, such as organic light emitting diode, organic solar cell and organic th…
emissions.Though,traditional furnace-based case hardening treatments still represent the choice of reference when performance requirements are particularly demanding,either for the critical operating conditions or safety-related issues.The processes of CIH（Contour Induction Hardening）,compared to the traditional carbu…
A thin liquid film subject to a temperature gradient undergoes thermocapillary convec- tion because of the non-uniform surface tension at the free surface. This induced flow perturbs the film free surface and generate a free surface velocity field. These observable consequences can be thought of as the of the imposed…
Metal foams are usually used as light structural/functional materials.The nucleation,evolution and the solidification behavior of the metal foams can be influenced by the stirring mode and the foaming parameters.In this paper,the effects of electromagnetic stirring on metal foaming process were investigated.Comparativ…
Nanocluster carbon thin films were grown using the room temprature based cathodic arc process. These films are mixed phase material containing both sp2 and sp3 bondings. Space-charge-limited-current conduction (SCLC) mechanism was investigated in the case of Nanocluster carbon thin films. The results were analyzed by…
Titanium dioxide (TiO2), as a kind of excellent photocatalyst, has been widely researched and applied. The geometry structures, band structures, densities of states and absorption coefficients of three possible (Nb, N) co-doped anatase are studied by the density functional theory based on GGA+U method, and the results…
Medicinal herbs are highly highlighted due to their wider use and lesser side effects. Plant extracts have been used for centuries, as popular remedies against several health disorders. Therefore, development of newer a nd more potential drugs with lesser side-effects is necessa ry. This review gives a detail of the s…
This paper presents the results of an experimental investigation carried out to study the heat transfer in saturated nucleate pool boiling of the water/lithium bromide mixture on a uniformly heated vertical cylinder at 2 bar pressure. The concentration of lithium bromide was varied from 0 to 30 wt%. It was observed th…
Aimed at the problem of short life of mixing head in KR mechanical mixing method for desulfurization of hot metal,a new type of mixing stir was proposed.CFD theory was used to simulate the characteristics of the fluid flow for the new type of stirring vessel of water model for KR mechanical desulfurization.Flow charac…