background to current knowledge, different oocyte's recovery method and various seasons have profound impact on in vitro embryo production (ivep). objectives the aim of this study was to define an efficient recovery method for oocytes harvesting from slaughterhouse material in different seasons, and their effects on ivep yield. materials and methods ovaries from slaughtered ewes in breeding sea...

In this paper we establish existence and multiplicity results for a class of fully nonlinear elliptic equations of k-Hessian type with exponential nonlinearity. In particular, we characterize the precise dependence of the multiplicity of solutions with respect to both the space dimension and the value of k. The choice of exponential nonlinearity is motivated by the classical Liouville-Gelfand p...

Nicotine exhibited all the principal properties of a drug of dependence but appeared to contribute little to overall disease caused by tobacco use. Improved health outcomes were observed when non-combustible nicotine delivery devices were used compared with smoking. As a precautionary measure, it was argued that any smoke constituents that could be reduced, should be reduced, but that this was ...

An explosion has recently occurred at a silo containing refuse-derived fuels (RDF) in Japan. There is a possibility that microorganisms are involved in generation of combustible gas from RDF and this study was aimed at showing the presence of bacteria that can ferment RDF pellets. All RDF samples tested contained a relatively high number of viable bacterial cells, 1.4x10(5) to 3.2x10(6) viable ...

Abstract Small handheld battery-powered devices contain complex material combinations. Current recycling methods achieve low rates for these materials. For a more efficient recycling, fractionation of the according to composition before mechanical shredding is helpful. However, this requires either manual disassembly or knowledge internal structure devices, which not provided by manufactures. S...

Chitosan is one of the naturally abundant, biodegradable, and low-cost adsorbent materials for metal adsorption purposes. In this work, we evaluated application chitosan derived from seafood wastes in Depok beach, Yogyakarta, an effective recovery palladium(II) ions. First all, were treated to obtain chitin then followed by deacetylation process produce material with a degree 78.42%. The was ch...

Hurling a successful Construction and Demolition Waste (C&DW) recycling operation around the globe is a challenge today, predominantly because secondary materials markets are yet to be integrated. Reducing, Reusing and recycling of (C&DW) have been employed over the years, and various techniques have been investigated. However, the economic and environmental viability of its application seems l...

Abstract In order to study the interior ballistic characteristics of cased telescoped ammunition (CTA) armor-piercing projectile in hypervelocity launch process, this paper, based on secondary ignition and propellant combustion technology, zero-dimensional internal model CTA is established. At same time, improve lightweight energy utilization rate combustible cartridge materials are applied str...

The present work reports a discrete stress-dependent, complex compliance spectra method that may be used to predict the mechanical response of nonlinear viscoelastic polymers during creep and recovery processes. The method is based on the observation that the real and imaginary parts of a discrete complex compliance frequency spectra obtained from creep and recovery measurements are smooth, eas...