The effect of forest management practices on carbon quality is poorly documented. To assess changes in the and stability soil organic (SOC) a temperate upon human activities, we investigated from forests (i) developed following natural regeneration after clearcutting 20 40 years ago, (ii) afforestation an abandoned crop area ago (iii) where regular clear-cut (with wood residues input) was condu...

A pH-sensitive membrane for colon-specific drug delivery was synthesized by the covalent bonding of glycine on the poly(ethylene-co-vinyl alcohol) (EVAL) membrane via isocyanation of surface hydroxyl groups and subsequent conversion to activated ester. The processes of surface modification would not change the membrane structure under the observable detection sensitivity of the scanning electro...

Abstract An extensive subsurface investigation evaluating the geothermal energy resources and underground thermal storage potential is being carried out in southwestern part of Swiss Molasse Basin around Geneva Canton. Among this process, evaluation petroleum source-rock type an important step to understand system responsible some oil gas shows at surface subsurface. This study provides a first...

PURPOSE To evaluate the feasibility and effectiveness of transcatheter embolization by forcible intraarterial injection of a mixture of ethylene vinyl alcohol copolymer (EVAL) and ethanol under microballoon occlusion compared with conventional transcatheter arterial embolization methods in nontumoral swine liver. MATERIALS AND METHODS Nine swine were divided into three groups: embolization wi...

dezful embayment contains several potential source rocks deposited in tectonically active environments. existence of various source rocks with different geological ages makes this area one of the most prolific regions throughout the middle east. the pabdeh formation (lower paleocene-eocene), the gurpi formation (santonian-masstrichtian), the kazhdumi formation (albian) and the gadvan formation ...

Thermal jet rock breaking technology refers to the use of high temperature medium such as supercritical water for a rapid local heating rocks break rocks. Because low thermal conductivity matrix, stress will only form on surface. When exceeds strength rock, micro-cracks appear in and continue expand, resulting cracking surface, which cause surface fall off from body rock. Based thermal-solid co...

Eocene coal-bearing source rocks of the Pinghu Formation from W-3 well in western margin Xihu Sag, East China Sea Shelf Basin were analyzed using Rock-Eval pyrolysis and gas chromatography–mass spectrometry to investigate samples’ organic matter, depositional environment, thermal maturity, hydrocarbon generative potential. The distribution patterns n-alkanes, isoprenoids steranes, high Pr/Ph ra...

Complex sequences of paleosols are often formed by the interaction between pedogenesis and geomorphological evolution. Their study, particularly in mountain areas, is useful to reconstruct past environmental conditions as well climate shifts, gather information on morphodynamical processes affecting landscape through time. Since combined role that all different factors can play soil formation e...

Maastrichtian and Paleocene shales recovered from a vertical exploratory well on the western flank of Niger Delta Basin, close to boundary Dahomey (Benin) were studied for their possible contribution hydrocarbon potential basin. The organic matter richness, kerogen types, thermal maturity shale samples implications generation determined based results TOC/Rock-Eval analysis. are characterized by...