Multiscale architectures boosting thermoelectric performance of copper sulfide compound.

Unlabelled: Owing to their high performance and earth abundance, copper sulfides (Cu S) have attracted wide attention as a promising medium-temperature thermoelectric material. Nanostructure and grain-boundary engineering are explored to tune the electrical transport and phonon scattering of Cu S based on the liquid-like copper ion. Here multiscale architecture-engineered Cu S are fabricated by a room-temperature wet chemical synthesis combining mechanical mixing and spark plasma sintering.

Identification of male-specific AFLP and SCAR markers in the dioecious plant Humulus scandens.

In this study, 17 male-specific amplified fragment length polymorphism (AFLP) markers were identified between male and female Humulus scandens plants. BLAST analysis revealed that 7 of the 17 sex-linked sequences were highly similar to retrotransposons. Two stable male-specific sequence-characterized amplified regions (SCAR) markers were developed.

[Leaching Toxicity and Bioaccessibility of Heavy Metals in MSWI Fly Ash with Various Particle Sizes].

Size fractionation and chemical composition of municipal solid waste incinerator (MSWI) fly ash were investigated. And the leaching efficiency of heavy metals was contrastively studied using toxicity characteristic leaching procedure (TCLP), European standard protocol (EN12457-2), sequential extraction procedure (SEP) and physiologically based extraction test (PBET) for different size-fractionated fly ash. The results indicated that the main compositing elements of fly ash were Ca, Si, Al, Mg, Fe, Na, K.

Facile Synthesis of Smart Nanocontainers as Key Components for Construction of Self-Healing Coating with Superhydrophobic Surfaces.

SiO2-imidazoline nanocomposites (SiO2-IMI) owning high loading capacity of corrosion inhibitor, 1-hexadecyl-3-methylimidazolium bromide (HMID), and a special acid/alkali dual-stimuli-accelerated release property have been synthesized via a one-step modified Stöber method. SiO2-IMI were uniformly distributed into the hydrophobic SiO2 sol to construct "host"-"guest" feedback active coating with a superhydrophobic surface (SiO2-IMI@SHSC) on aluminium alloy, AA2024, by dip-coating technique. SiO2-IMI as "guest" components have good compatibility with "host" sol-gel coating, and more importantly, once localized corrosion occurs on the surface of AA2024, SiO2-IMI can simultaneously respond to the increase in environmental pH around corrosive micro-cathodic regions and decrease in pH near micro-anodic regions, promptly releasing HMID to form a compact molecular film on the damaged surface, inhibiting corrosion spread and executing a self-healing function.

[Enhanced hydrolysis and acidification of waste activated sludge by alkyl polyglycosides].

The effects of biosurfactant alkyl polyglycosides (APG) on the hydrolysis and acidification of waste activited sludge including dosage of APG and hydrolysis time were investigated. It was found that APG reduced the tension of sludge hydrolysate, promoting sludge hydrolysis. The concentrations of SCOD, protein and soluble carbonhydrate reached the maximum within 12 h at the optimal dosage of 0.

In vitro anti-viral activity of the total alkaloids from Tripterygium hypoglaucum against herpes simplex virus type 1.

Herpes simplex virus type 1 (HSV-1) is a commonly occurring human pathogen worldwide. There is an urgent need to discover and develop new alternative agents for the management of HSV-1 infection. Tripterygium hypoglaucum (level) Hutch (Celastraceae) is a traditional Chinese medicine plant with many pharmacological activities such as anti-inflammation, anti-tumor and antifertility.

[Epidemiological characteristics and prevention strategies of viral hepatitis in Chongwen District of Beijing during 1997-2006].

Objective: To understand the epidemiological features of viral hepatitis, and provide scientific evidence for developing strategies for prevention and control.

Methods: Through descriptive epidemiological methodology, the epidemiological characteristics of 1121 viral hepatitis cases in Chongwen District (1997-2006) were studied. chi2-test was used in ratio comparison.

[Mantle cell lymphoma: clinicopathologic features and prognostic factors of 102 cases occurring in Chinese patients].

Objective: To study the clinicopathologic features and prognostic factors of Chinese patients with mantle cell lymphoma.

Methods: One hundred and two cases of mantle cell lymphoma occurring in Chinese patients were studied by light microscopy and immunohistochemistry. The follow-up information was also analyzed.

Influence of NaOH concentrations on synthesis of pure-form zeolite A from fly ash using two-stage method.

Synthesis of pure-form zeolite A were investigated using four concentrations of NaOH solution to dissolve Si source form fly ash, and with the addition of Al source, to prepare initial gel. Experimental results demonstrated, for two-stage method, that NaOH concentrations in initial gel played an important role in synthesis of pure-form zeolite A using fly ash as raw materials. Generally, pure-form zeolite A could be synthesized when following conditions were used: NaOH concentrations, 1.

[Preparation of Mo-TiO2/activated carbon and degradation of L-acid under visible light].

The photocatalyst of Mo(6+) doped TiO2 was prepared by a sol-gel method and immobilized to granular activated carbon by coating. The photodegradation of 1-naphthol-5-sulphonic acid (L-acid), and the effects of the loading numbers of the photocatalyst on activated carbon and the light sources on the removal efficiency of L-acid and TOC of solution were investigated. The experimental results show that the Mo(6+) doping can help TiO2 to extend the active scope to the visible-light region.

Treatment of bactericide wastewater by combined process chemical coagulation, electrochemical oxidation and membrane bioreactor.

Bactericide wastewater (BIW) contains isothiazolin-ones, high salinity, toxicity and non-biodegradable organic concentrations. In order to enhance biodegradable capacity, chemical coagulation and electrochemical oxidation were applied to pretreatment processes. FeSO(4).

[Preparation and characterization of magnetic photocatalysts TiO2/Fe3O4].

Magnetic photocatalysts (TiO2/Fe3O4), which are liable to be separated and recovered, were prepared using Fe3O4 as the support. The surface morphology and crystal pattern were investigated by means of XRD, SEM, XPS and FTIR. The results showed that TiO2 wraps on the surface of Fe3O4.

Photocatalytic degradation of L-acid by TiO2 supported on the activated carbon.

TiO2 sol was prepared by sol-gel technique with tetrabutyl titanate as precursor. Supported TiO2 catalysts on activated carbon were prepared by soak and sintering method. The aggregation of nano-TiO2 particles can be effectively suppressed by added polyethylene glycol (PEG) as a surface modifier.

[Cloning and analyzing of the female-specific marker in the dioecious species Asparagus officinalis L].

Sex-linked molecular markers are being obtained, which would be essential to be used in the screening of different sex of dioecious plants at the seedling stage. Furthermore, it is important in cloning the gene related to the sex. In this study the random amplified polymorphic DNA (RAPD) technique was employed with the objective to find markers linked to sex determination in Asparagus.

[Effects of nanoscale oxide particles on structure and property of PVDF hollow fiber membrane].

The preparation of nanoscale oxide/polyvinylidene fluoride (PVDF) composite hollow fiber membrane by phase transition process was introduced. The effects of nanoscale titania and alumina particles on structure and property of composite hollow fiber membrane were investigated. The separation property, microstructure and crystalline phase of composite membranes were characterized by bovine serum albumin (BSA) rejection experiment, scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FT-IR), respectively.

[Error analysis of temperature measurement by Boltzmann plot in atomic emission spectroscopy for a high-density plasma produced by electrothermal capillary discharge].

The present paper analysed in detail the reasons for the errors found in the literature when Boltzmann plot was used for the temperature measurement of a high-density plasma produced by electrothermal capillary discharge. The reliability of experiment can reach as high as 98%-99.5% and the error is only +/- 6.