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This study was designed to investigate the mixed plastic waste from the production of light carbon ash bricks performance. The mixed waste plastic pyrolysis process generated waste - Carbon ash. After extrusion, a Lightweight brick was made by carbon ash, additive and Cement mortar. In general, the set compressive strength and insulation effect of lightweight bricks with carbon ash proportion for significant impact. The set water absorption and thermal conductivity of lightweight bricks with carbon ash proportion for significant impact. The set density of lightweight brick ameliorates with M3824 additive and CM3 cement mortar for significant impact. Under conditions of technology and economic, the results of this study as reference for market-oriented marketing and commercialization of production.

This study effect of carbon ash content on the thermal stability and combustion behavior of waste wood particle / recycled polypropylene composites was investigated using TGA, DTG, LOI and cone calorimeter. The TGA shows that, as carbon ash content increases, the thermal stability of composites increases, while the residual weight significantly increases, with the residual weight rate of waste wood particle / recycled polypropylene composites increases from 13.97% to 41.02% at 800 ℃ According to cone calorimeter results, in the 50 kW/M2 thermal flow, when carbon ash adding to 70%, peak heat release rate and total heat release quantity, decreases by 68% and 52%, respectively. The LOI of waste wood particle / recycled polypropylene composites improves by about 34%, Conforming UL-94 flammability standard, V-0 rating. The residual weight rate increases by 202.8%, which the significant role of carbon ash in flame retardant.

Abstract Background Carcinoma of unknown primary site (CUP) has a poor prognosis and the prognostic factors in these patients are not well established. Furthermore, there are no selection criteria for patients who should benefit from chemotherapy. Methods The medical records of 179 CUP patients who were treated at Taipei Veterans General Hospital from 2000 to 2009 were reviewed. Factors associated with survival were determined by Kaplan-Meier analysis. Differences between the groups with and without palliative chemotherapy were analyzed. Results Univariate analysis revealed multiple prognostic factors, including performance status, lung metastasis, number of metastatic organs, serum albumin, corrected serum calcium, lactate dehydrogenase (LDH), sodium, and cholesterol levels, palliative chemotherapy, and white blood cell and lymphocyte counts. Multivariate analysis showed that performance status < 2, serum albumin level ≥ 3.5 g/dl, corrected serum calcium level < 10.7 mg/dl, single metastatic organ, and palliative chemotherapy were independent factors of better prognosis. Patients with better performance status, higher serum albumin, and lower serum LDH levels had significantly greater benefit from palliative chemotherapy. Conclusions Certain patients with unfavorable CUP will have better survival. Identification of patients with unfavorable CUP who could benefit from palliative chemotherapy warrants future prospective studies.

We report on the analysis of quantum transport through an Aharonov-Bohm ring with embedded double quantum dots. The normal metal leads are assumed to be weakly coupled to the two quantum dots. In the quantum dot region, Rashba spin-orbit coupling and electron--electron interaction are considered. The quantum transport is analyzed based on the Keldysh nonequilibrium Green's function formalism. A spin-polarized current emerges in this device due to the combined effect of a magnetic flux, threading through the AB ring, and the Rashba spin-orbit coupling. An interesting switching property of the spin polarization by turning on and off the gate within small voltage window is observed. This feature, however, does not exist in the Aharonov-Bohm ring structure with single quantum dot. We therefore propose a theoretical idea of a bipolar spin polarization switch. Index Terms--Aharonov--Bohm ring, Keldysh nonequilibrium formalism, quantum dot, Rashba spin-orbit coupling.

A spin interferometer utilizing the Rashba effect is proposed. The novel design is composed of a 1-D straight wire and a 1-D half-ring. By calculating the norm of the superposed wave function, we derive analytical expressions to describe the spin interference spectrum as a function of the Rashba coupling strength. Presented spin interference results are identified to include i) the quantum-mechanical 4[pi] rotation effect, ii) the geometric effect, and iii) the Shubnikov-de Haas-like beating effect. Index Terms--Spin intereferenee, spin-orbit coupling.

Mangiferin is a naturally occurring polyphenol, widely distributed in Thymeraceae families, and presents pharmacological activity, including anti‐cancer activities in many human cancer cell lines. Mangiferin has also been reported to affect immune responses; however, no available information concerning the effects of mangiferin on immune reactions in leukemia mice in vivo. In the present study, we investigated the effects of mangiferin on leukemia WEHI‐3 cell generated leukemia BLAB/c mice. Overall, the experiments were divided into two parts, one part was immune responses experiment and the other was the survival rate experiment. The immune responses and survival rate study, 40 mice for each part, were randomly separated into five groups (N = 8): Group I was normal animals and groups II‐V WEHI‐3 cell generated leukemia mice. Group II mice were fed normal diet as a positive control; group III, IV, and V mice received mangiferin at 40, 80, and 120 mg/kg, respectively, by intraperitoneal injection every 2 days for 20 days. Leukocytes cell population, macrophage phagocytosis, and NK cell activities were analyzed by flow cytometry. Isolated splenocytes stimulated with lipopolysaccharide (LPS) and concanavalin A (Con A) were used to determine the proliferation of B and T cells, respectively, and subsequently were analyzed by flow cytometry. Results indicated that mangiferin significantly increased body weight, decreased the liver and spleen weights of leukemia mice. Mangiferin also increased CD3 T‐cell and CD19 B cell population but decreased Mac‐3 macrophage and CD11b monocyte. Furthermore, mangiferin decreased phagocytosis of macrophages from PBMC and peritoneal cavity at 40, 80, and 120 mg/kg treatment. However, it also increased NK cell activity at 40 and 120 mg/kg treatment. There were no effects on T and B cell proliferation at three examined doses. In survival rate studies, mangiferin significantly elevated survival rate at 40 and 120 mg/kg treatment of leukemia mice in vivo. [ABSTRACT FROM AUTHOR]

We report on the analysis of electron transport through an Aharonov–Bohm interferometer with laterally coupled triple quantum dots. Analytical expressions for the linear conductance and density of states with an indirect coupling parameter α are obtained. The conductance spectrum shows the Breit–Wigner and the Fano resonances. The suppression of the resonance at α=1 is ascribed to the existence of a bound state in the continuum. This resonance is well resolved and clearly observed as α decreases. For particular values of the magnetic flux, two antiresonances are observed due to the destructive quantum interference. They disappear due to the localization of the bonding and antibonding states. [ABSTRACT FROM AUTHOR]

The spin accumulation and the out-of-plane spin current in two-dimensional (x-y plane) electron gas with the Rashba spin-orbit interaction are examined. Employing the real-space Landauer–Keldysh Green’s function formalism and considering the two-terminal Landauer setup with leads locally contacting the sample, we show that the accumulation patterns for the three components of the spins can be identified from their unique symmetries. With increasing lateral sample length, the out-of-plane spin accumulation oscillates by generating bubbles with alternating signs on the lateral edges. The out-of-plane spin currents are patterned by global vortices, and within the locally biased region of the sample, the direction of the current flow also oscillates as a function of the lateral sample length. [ABSTRACT FROM AUTHOR]