Recently, supercritical fluid extraction (SFE) has been indicated to be utilized as part of a biorefinery, rather than as a stand-alone technology, since besides extracting added value compounds selectively it has been shown to have a positive effect on the downstream processing of biomass. To this extent, this work evaluates economically the encouraging experimental results regarding the use o...

BACKGROUND Hydrodistillation (HD) and steam-distillation, or solvent extraction methods of essential oils have some disadvantages like thermal decomposition of extracts, its contamination with solvent or solvent residues and the pollution of residual vegetal material with solvent which can be also an environmental problem. Thus, new green techniques, such as supercritical fluid extraction and m...

Producers submit committed supply functions to a procurement auction, e.g. an electricity auction, before the uncertain demand has been realized. In the Supply Function Equilibrium (SFE), every firm chooses the bid maximizing his expected profit given the bids of the competitors. In case of asymmetric producers with general cost functions, previous work has shown that it is very difficult to fi...

We present a new garbled circuit construction for two-party secure function evaluation (SFE). In our one-round protocol, XOR gates are evaluated “for free”, which results in the corresponding improvement over the best garbled circuit implementations (e.g. Fairplay [19]). We build permutation networks [26] and Universal Circuits (UC) [25] almost exclusively of XOR gates; this results in a factor...

In this paper we consider the forward/futures contracts and Asian-type call options for power delivery as important components of the bidding strategies of the players’ profits on the electricity market. We show how these derivatives can affect their profit. We use linear asymmetric supply function equilibrium (SFE) and Cournot models to develop firms’ optimal bidding strategies by including fo...

هدف: تحلیل گفتمان‌های پیرامون جانشین­‌پروری در یک دستگاه دولتی.طراحی/ روش­‌شناسی/ رویکرد: تحقیق حاضر به لحاظ رویکرد، کیفی؛ روش نمونه­‌گیری، هدفمند و جمع­‌آوری داده­‌ها عمدتا مصاحبه نیمه ساختاریافته با 13 نفر از مدیران مورد مطالعه بوده است. داده‌­ها، گفتمان انتقادی بهره‌­گیری الگوی فرکلاف طی سه مرحله توصیف، تفسیر تبیین انجام یافته است.یافته‌­های پژوهش: مهم­ترین یافته­‌های بخش استخراج 416 کد مثبت...

The chemical speciation of iron (Fe) in oceans is influenced by ambient pH, dissolved oxygen, and the concentrations strengths binding sites organic matter (DOM). Here, we derived new nonideal competitive adsorption (NICA) constants for Fe(III) to marine DOM via pH-Fe titrations. We used calculate derive apparent solubility (SFe(III)app) water column across Peruvian shelf slope region. define S...

The morphometric approach (MA) is a powerful tool for calculating a solvation free energy (SFE) and related quantities of solvation thermodynamics of complex molecules. Here, we extend it to a solvent consisting of m components. In the integral equation theories, the SFE is expressed as the sum of m terms each of which comprises solute-component j correlation functions (j = 1,..., m). The MA is...

Rising prices in the German wholesale electricity market have spurred discussions about the potentials and the abuse of market power. Particularly since the introduction of emission certificates, electricity prices increased continuously closely related to rising certificate prices. The oligopolistic structure of the German market with four major players owning 90% of the capacities (Bundeskart...

The distribution of size fractionated dissolved iron (DFe, <0.2 mum) species was determined in the upper water column (0-150 m) of the Canary Basin (25-32 degrees N and 18-24 degrees W) on a research cruise in October 2002. A DFe concentration gradient resulting from a decrease in both soluble iron (SFe, <0.02 microm) and colloidal iron (CFe, 0.02-0.2 microm) was shown to extend from the coast ...