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Abstract in UndeterminedThe recent contribution by Benjamin Sovacool proposes 20 dimensions and 320 indicators of energy security in Asia. However, the method for identifying these dimensions and indicators – 64 semi-structured interviews – has three shortcomings. First, Asian policy makers responsible for energy security are absent from the pool of respondents dominated by academics. Second, no p
An integrated biological process for the production of hydrogen based on thermophilic and photo-heterotrophic fermentation was evaluated from a technical and economic standpoint. Besides the two fermentation steps the process also includes pretreatment of the raw material (potato steam peels) and purification of hydrogen using amine absorption. The study aimed neither at determining the absolute c
Texas has rapidly emerged as one of the leading wind power markets in the United States. This development can be largely traced to a well-designed and carefully implemented renewables portfolio standard (RPS). The RPS is a new policy mechanism that has received increasing attention as an attractive approach to support renewable power generation. Though replacing existing renewable energy policies
Energy conservation is a large part of the NLO corrections to BFKL. A formalism is presented which includes effects of energy-momentum conservation in the dipole formalism in transverse coordinate space. Energy conservation gives a very strong suppression at small x, which implies that the effect of multi-pomeron exchange and saturation are pushed to very small x-values or very high energies. Pert
In this book, energy consumption in the household sector is examined. Barriers to and enablers of energy efficiency in households in relation to governmental policy formulation, the implementation and appropriation of technology are discussed. This represents a shift away from the conventional focus on energy supply toward a focus on energy use in everyday life. This shift is urgently needed, sinc
Reducing energy use, increasing the use of renewable energy sources, and adapting to stricter building regulations and certification systems – these are all examples of the challenges facing the building industry and society. Looking at the energy supply at a larger scale than a single building, like a neighborhood or a city, the stack effect of peak power demands can cause problems on the product
There is a significant infrastructure in the world for using liquefiedpetroleum gas (LPG). The fuel is used in many applications, spanningfrom heating to chemical processes as well as a vehicle fuel. To be able touse this infrastructure also after a transition from fossil to renewablesources, a technology for producing LPG from such resources (glycerol,cellulose etc.) is being developed. This repo
Inom Europa beskriver begreppet energifattigdom de kompromisser som hushållkan möta avseende att å ena sidan ha en tillräckligt uppvärmd bostad, och å andrasidan ha råd med övriga omkostnader. I Sverige har begreppet tidigare inte använts, och kanske heller inte behövts. Men i december 2021 steg elpriserna till nivåer som gjorde att vissa hushåll, där en rad riskfaktorer sammanstrålade, plötsligt
Effekten av vindkraftens tillväxt är att vi i dag producerar mer el än vad vi behöver även då vi lagt ner flera kärnkraftverk. Klimatomställningen via elektrifiering pekar på ett fördubblat elbehov till 2045. Detta kräver mycket ny elproduktion. Och potentialen att bygga ut ny vindkraft är tillräcklig för att täcka behovet. Ny kärnkraft kan också bidra men kan tidigast vara i gång 2030 om inte sen
1. IntroductionThe starting point of modern biotechnology is often defined by the production of lactic acid by Pasteur in 1857 and the discovery of penicillin by Fleming in 1928. During this first wave of biotechnological processes moved production of e.g. antibiotics and amino acids from laboratory to industrial scale. The second wave of biotechnological processes started with the discovery of th
Biological hydrogen production using dark fermentation has been proposed as an alternative and renewable way of producing hydrogen from biomass. However, theoretically, the conversion of biomass to biohydrogen using dark fermentation only utilizes one third of the energy content of the sugars derived from starch or cellulose; the rest being in the form of organic acids also produced by the microor
This thesis investigates III – V semiconductor nanowire (NW) arrays, with the aim to develop and improve NW photovoltaic devices. Solar cells made from arrays of NWs are investigated as candidates for next generation photovoltaics. They promise to deliver the high efficiencies of III – V planar semiconductor solar cells, while the cost of the cells could be significantly reduced, due to the much l
Our research aims to develop an intelligent control system for optimizing the operation of lighting systems for a jogging track in the countryside by using adaptive control methods, and optimization of built-in lighting control. Through this, lighting systems will be optimized, energy consumption will be minimized and the lighting system will be adapted to be able to handle a larger amount of loca
This article compares the articulation of dental stops by two subjects, one Swedish and one British English. The articulations are studied on X-ray motion films and the spectral consequences are studied on spectrograms. Speakers of Swedish are very conscious of a difference in pronunciation of dental stops and hear it as a typical part of an English accent in Swedish. The traditional Swedish expla
Grossman and Zhou [1993. Optimal investment strategies for controlling drawdowns. Math. Finance 3, 241-276] proposed a strategy to maximize the asymptotic long-run growth rate of one's fortune F, subject to its never falling below lambda sup(0 <= t'<= t) F(t')e(r(t-t')), where 0 <=lambda <= 1 is a fixed constant chosen by the investor and r is a fixed, known, non-negative, continuously compounded
