Narrow Results

We have constructed a vertical beam line for in situ liquid analysis. Details of this beam line, the analytical results of milk and tea, and the detection limits of this beam line for 8-MeV He⁺ ion beam are described.

Suppose , . We deal with the existence or nonexistence conditions of ground states solution for the multi-singular elliptic problem:

Results on the existence of solutions of anti-periodic type boundary value problems for singular multi-term fractional differential equations with impulse effects are established. We first transform the problem into a hybrid system, then construct a weighted Banach space and a completely continuous operator, and finally, we use the fixed point theorem in the Banach space to prove the main results. An example is given to illustrate the efficiency of the main theorems.

In this paper, we construct the exact solution of two- or three-dimensional spacetime Landau–Lifshitz equation raised in the ferromagnetic materials. Under suitable transformations, some exact solutions are obtained in the radially symmetric coordinates and nonsymmetric coordinates. The type of solutions cover the finite time blow-up solution, vortex solution and periodic solution. In the end, we sketch some solutions and their spatial curvatures.

Exact solutions for the multidimensional Schrödinger map equation (SM for short) on hyperbolic 2-space cone are obtained. Consequently, we show the non-traveling wave solution on is a finite energy solution on the finite spacial domain. The question of whether a solution of SM can develop a finite time singularity on with smooth initial data is not clear. Our result show that blowup can really happen on this initial data. In addition, some exact global smooth solutions are constructed.

The classical limit of wave quantum mechanics is analyzed. It is shown that the basic requirements of continuity and finiteness to the solution of the form ψ(x) = Ae^{i ϕ (x)} + Be^{-i ϕ (x)}, where and W(x) is the reduced classical action of the physical system, give the asymptote of the wave equation and general quantization condition for the action W(x), which yields the exact eigenvalues of the system.

This paper presents the results of a study on the production of nanofiber anisotropic nanoporous materials based on silk fibroin and cotton cellulose by electrospinning using a rotating screen-receiver of nanofibers in the form of a thin material. The difference in the anisotropic properties of the nanofiber material is shown by the method of birefringence, sorption of water vapor and filtration of a liquid-phase mixture. The possibility of using nanofiber nanoporous fibroin and cotton cellulose materials as a nanofilter of gaseous and liquid-phase mixtures has been shown.

A simple and hydrazine-free solution-based approach for depositing Cu₂ZnSnS₄ (CZTS) and Cu₂ZnSn(S,Se)₄ (CZTSSe) absorber layers is reported. The process involves incorporating metal salts (Cu(CH₃COO)₂, Zn(CH₃COO)₂, SnCl₂) and thiourea into a single pyridine-based solution, spin-coating a precursor film, and sulfurizing with sulfur powders or selenizing using Se pellets in an inert atmosphere, to form the desired CZTS or CZTSSe films. X-ray diffraction and Raman spectra studies show that kesterite CZTS and CZTSSe are formed after sulfurization and selenization, respectively. The selenized CZTSSe displays higher crystallinity than the sulfurized CZTS. Photovoltaic devices (glass/Mo/CZTSSe/CdS/i-ZnO/n-ZnO/A) employing the solution precursor selenized at 500°C have yielded power conversion efficiency of 1.44% under AM 1.5 illumination.

Yak genome provides new insights into high altitude adaptation.

Gentris and Shanghai Institutes of Preventative Medicine expand collaboration.

Chinese researchers identify rice gene enhancing quality, productivity.

Quintiles opens new Center of Excellence in Dalian to support innovative drug development.

BGI demonstrated genomic data transfer at nearly 10 gigabits per second between US and China.

Quintiles deepens investment in China - New Quintiles China Headquarters and local lab testing solution announced.

Beike earns AABB Accreditation for cord blood and cord tissue banking.

Epigenomic differences between newborns and centenarians provide insight to the understanding of aging.

Consistency properties of game solutions connect between themselves the solution sets of games with different sets of players. In the paper, the strongly consistent solutions with respect to the Davis–Maschler definition of the reduced games to the class of balanced cooperative TU games with finite sets of players are considered. A cooperative game solution σ to a class of a TU cooperative game is called strongly consistent if for any and , where is the reduced game of Γ on the player set S and with respect to x. Evidently, all consistent single-valued solutions are strongly consistent. In the paper, we characterise anonymous, covariant bounded and strongly consistent to the class of balanced games. The core, its relative interior and the prenucleolus are among them. However, they are not unique solutions satisfying these axioms. Thus, more axioms are necessary in order to characterise these solutions with strong consistency. One of such axioms is the definition of a solution for the class of balanced two-person games. It is sufficient for the axiomatisation of the prenucleolus without the single-valuedness axiom. If we add the closed graph property of the solution correspondence to the given axioms, then the system characterises only the core. The two axiomatisations are the main result of the paper. An example of a strongly consistent solution different from the prenucleolus, the core and its relative interior is given.

The use of a single component porphyrin thin-film for photodynamic antimicrobial chemotherapy is unexplored. Herein, a porphyrin with good film formation properties is used to make thin layers, by physical vapor phase deposition, that are stable in aqueous media and can generate singlet oxygen upon 650 nm excitation. The synthesis and photophysical studies, in solution and as thin film, of free base 5,10,15,20-tetra-(4-hexyloxyphenyl)porphyrin are described. The porphyrin was synthesized via modified Adler-Longo conditions. Thin films of this porphyrin were made on quartz glass via spin coating and via vapour-phase deposition. The porphyrin was studied, in solution and as thin film (without a polymer component or matrix), with UV-Vis spectroscopy and with steady-state and time-resolved photoluminescence spectroscopy. The spin coated films display sharp J-band emission at 741 nm, indicating J-aggregate formation, but are not stable in aqueous media. The thin films obtained via vapour-phase deposition do not show the J-band emission, but are stable. The detection of singlet oxygen generated by the porphyrin thin film using a chemiluminescent water-soluble singlet oxygen probe is reported.

The purpose of Environmental Impact Assessment (EIA) is to systematically, objectively, scientificly and comprehensively collect data, analyze infromation, predict and assess the potential environmental effects of a development proposed by a private organization or a planning strategy developed by government, to make environmental management decisions. EIA process should be transparent, reasonable and allow relevant organizations, groups, local residents and other stakeholder to participate and to make comments. The developer and competent authority should ensure that the suggestions, comments, conclusions and consensus in the EIA process be implemented in the actual construction/application stage. The Environmental Impact Assessment Act for Taiwan Region was formulated and came into force in 1994. The scope of this study is to introduce the background of formation of EIA system in Taiwan Region and the concepts and features of the EIA regulations and legislations. The problems encontered in the implementation are discussed and measures to improve EIA procedures and targets and strategies of EIA applications are suggested. The experiences and suggestions may beneficial to those developing countries in developing their own EIA system.

The main purpose of this work is to study the existence of solutions for a perturbed second-order evolution inclusion involving time-dependent subdifferential operators. Under suitable conditions on the set-valued perturbation, the main result of the paper is proved in the context of a separable Hilbert space. A second-order evolution quasi-variational inequality is also investigated.

This paper presents a new faster iteration approach that is based upon the well-known three-step fixed point iteration scheme called SP-iterative scheme for a broad and larger class of non-linear BVPs. The scheme is constructed using Green’s function based integral operator and the new modified scheme in the paper will be called SP–Green’s iterative scheme. We present a fixed point convergence theorem using some assumption on the sequences of scalars in our scheme. We also prove the weak $w^2$-stability for our scheme and present a numerical example to support our scheme. We provide eventually applications of our scheme to a second-order BVP and a singular BVP of isothermal gas sphere.