The article discusses a method for calculating the temperature of solar air heater absorber under conditions still in collector and low forced convection. problem determining tst is considered climatic Fergana, with horizontal when radiation passes through double glass. It assumed that over short period time, constant heat loss insulation bottom negligible. Solar ordinary transparent colorless ...

A new species of high elevation dwarf gecko (Gekkonidae: Lygodactylus) is described from Mount Namuli, northern Mozambique. This new species is distinguished from other closely related species in the genus Lygodactylus by body size, scalation, and color, and is genetically divergent from congeners. The species is most similar genetically and morphologically to Lygodactylus rex, the King Dwarf G...

background: the microarray technology is in needed of cost-effective, low background noise and stable substrates for successful hybridization and analysis. methods: in this research, we developed a three-dimentional stable and mechanically reliable microarray substrates by coating of two polymeric layers on standard microscope glass slides. for fabrication of these substrates, a thin film of ox...

Lithography-based additive manufacturing was introduced in the 1980s, and is still the method of choice for printing accurate plastic parts with high surface quality. Recent progress in this field has made tough photopolymer resins and cheap LED light engines available. This study presents the influence of photoinitiator selection and post-processing on the thermomechanical properties of variou...

• Caldwell* was the first to measure directly the pH of large cells (crab muscle fibres) with a glass electrode. Kostyuk and Sorokina reduced considerably the dimensions of the glass electrode and measured directly the intracellular pH of sartorius muscle (frog). Finally, Carter first measured the intracellular pH of a mammalian cell (rat voluntary muscle) by means of a double-barreled microele...

Via analysis of spatiotemporal arrangements of atoms based on their dynamics in supercooled liquid and glassy states of a 2D monatomic system with a double-well Lennard-Jones-Gauss (LJG) interaction potential, we find a new scenario of dynamical heterogeneity. Atoms with the same or very close mobility have a tendency to aggregate into clusters. The number of atoms with high mobility (and size ...

Double emulsions are useful in a number of biological and industrial applications in which it is important to have an aqueous carrier fluid. This paper presents a polydimethylsiloxane (PDMS) microfluidic device capable of generating water/oil/water double emulsions using a coaxial flow focusing geometry that can be fabricated entirely using soft lithography. Similar to emulsion devices using gl...

Microfluidic devices composed of glass capillaries were used for generation of double emulsion droplets with photocurable shell phase. The cores of the emulsion droplets were aqueous suspension of higly charged polystyrene (PS) particles which readily form the crystals by repulsive interparticle potential. The shells of double emulsion droplets were solidified downstream and formed the polymeri...

Solar energy is primary source of all type of energy which is present in nature i.e. all the energy derived from it. So, direct utilization of solar energy into useful energy is important. There are so many solar thermal equipments in which concentrating type collector heated the fluid up to 100 to 400C. It is employed for a variety of applications such as power generation, industrial steam gen...

The effect of polymeric coatings on the static fatigue of double-coated optical fibers is investigated. A closed form solution of the tensile stress in the glass fiber under the action of a constant tensile force in the fiber’s axial direction is obtained using viscoelastic theory. The tensile force is applied to the glass fiber and polymeric coatings. The applied tensile fore is gradually tran...