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Modelling of Solid Oxide Fuel Cells Applied to the Analysis of Integrated Systems with Gas Turbines

Solid oxide fuel cells (SOFCs), working at high temperatures with an incomplete fuel oxidation process, have become an interesting candidate for combination with conventional power generation technology, such as gas turbines, in order to develop power plants that are both functional and efficient. An absolute condition for successful analysis and optimisation of such plants is the existence of rel

Integrating risk reduction, urban planning and housing: Lessons from El Salvador

Increasingly, attention has been given to the need to mainstream risk reduction in development work in order to reduce the vulnerability of the urban poor. Using El Salvador as a case study, the paper analyses the mainstreaming process in the developmental disciplines of urban planning and housing. The overall aim is to identify how the existing separation between risk reduction, urban planning an

Laser pulse control of exciton dynamics in the FMO complex: Polarization shaping versus effects of structural and energetic disorder

Femtosecond laser pulse control of exciton dynamics in biological chromophore complexes is studied theoretically using the optimal control theory specified to open quantum systems. Based on the laser pulse induced formation of an excitonic wave packet the possibility to localize excitation energy at a certain chromophore within a photosynthetic antenna system (FMO complex of green bacteria) is inv

Modelling Change in Ground Vegetation Response to Acid and Nitrogen Pollution, Climate Change and Forest Management in Sweden 1500--2100 a.d.

The ForSAFE model, designed for modelling biogeochemical cycles (water, acidity, base cation, nitrogen and carbon) in terrestrial ecosystems, was modified with a vegetation response module (VEG), incorporating the effects of: nitrogen pollution, acidification, soil moisture, temperature, wind chill exposure, light and shading by trees, grazing by animals, competition between plants, above ground f

Public and Non-Profit Interaction : U.S. Assistance to Eastern European Media 1989-1995

This study explores the relationships among U.S. public and non-profit organizations against the backdrop of the assistance they rendered to news media in Eastern European countries between 1989 and 1995. Ideological and administrative goals and strategies used by organizations such as the Department of State, the USAID, and the USIA, the International Media Fund, the Soros Foundations, the Freedo

Genome-Wide Expression Profiling and Mutagenesis Studies Reveal that Lipopolysaccharide Responsiveness Appears To Be Absolutely Dependent on TLR4 and MD-2 Expression and Is Dependent upon Intermolecular Ionic Interactions

Lipid A (a hexaacylated 1,4' bisphosphate) is a potent immune stimulant for TLR4/MD-2. Upon lipid A ligation, the TLR4/MD-2 complex dimerizes and initiates signal transduction. Historically, studies also suggested the existence of TLR4/MD-2-independent LPS signaling. In this article, we define the role of TLR4 and MD-2 in LPS signaling by using genome-wide expression profiling in TLR4- and MD-2-de

Low Plasma Level of Atrial Natriuretic Peptide Predicts Development of Diabetes: The Prospective Malmo Diet and Cancer Study.

Context:The cardiac natriuretic peptides are involved in blood pressure regulation, and large cross-sectional studies have shown lower plasma levels of N-terminal pro-natriuretic peptide levels [N-terminal atrial natriuretic peptide (N-ANP) and N-terminal brain natriuretic peptide (N-BNP)] in patients with insulin resistance, obesity, and diabetes.Objective:In this study, we prospectively tested w

The cooling capacity of mosses : controls on water and energy fluxes in a siberian tundra site

Arctic tundra vegetation composition is expected to undergo rapid changes during the coming decades because of changes in climate. Higher air temperatures generally favor growth of deciduous shrubs, often at the cost of moss growth. Mosses are considered to be very important to critical tundra ecosystem processes involved in water and energy exchange, but very little empirical data are available.

Opsin evolution and expression in Arthropod compound Eyes and Ocelli: Insights from the cricket Gryllus bimaculatus

Background: Opsins are key proteins in animal photoreception. Together with a light-sensitive group, the chromophore, they form visual pigments which initiate the visual transduction cascade when photoactivated. The spectral absorption properties of visual pigments are mainly determined by their opsins, and thus opsins are crucial for understanding the adaptations of animal eyes. Studies on the ph

A 4.35-mW +22-dBm IIP3 continuously tunable channel select filter for WLAN/WiMax receivers in 90-nm CMOS

A low-power high linearity CMOS G(m)-C channel select filter for WLAN/WiMax receivers in 90-nm CMOS technology is presented. To reduce power consumption a biquad cell with simple architecture and few devices is used. A simple but efficient technique is also used to improve the linearity of the filter without increasing its power consumption. The cutoff frequency of the sixth order Butterworth low-

Shape Coexistence, Triaxial Shape and Band Terminations at High Spin

Selected high-spin bands in A = 120-170 nuclei are interpreted within the configuration-constrained Cranked Nilsson-Strutinsky formalism with pairing neglected (CNS) and with pairing included (CNSB). A few bands in Lu/Hf nuclei which have been interpreted as formed at large triaxial deformation are reinterpreted as rotational bands at small deformation approaching termination. The differences betw

Escalation: Explorative studies of high-risk situations from the theoretical perspectives of complexity and joint cognitive systems

Popular Abstract in Swedish I högrisksystem såsom sjukvården är det frestande att härleda såväl framgång som motgång till enskilda individer. Vi prisar hjälten Dr. House för framgångssagor och vi drar syndabocken SOS-sköterskan inför domstol för att inte ha uppfattat allvaret i en specifik situation. Den enskildes professionalitet, erfarenhet och klokskap används som förklaringsmodeller för framgåThe main aim of the research is to explore different aspects of organisational resilience in escalating situations, with an investigation of both theoretical and practical implications. From the platform of an explorative approach, this study makes use of naturalistic research in the domain of health care and experimental simulation studies, in order to establish a broad theoretical framework vis-

Experimental Investigation of Flow Field Structure in Mixing Tee

T-junction is one of the familiar components in the cooling system of power plants with enormous capability of high-cycle thermal fatigue. This research investigates the structure and mixing mechanism of turbulent flow in a T-junction area with a 90 deg bend upstream. According to the wide distribution of turbulent jets in the T-junction, a re-attached jet was selected previously as the best repre

Imaging in gynecological disease (10): clinical and ultrasound characteristics of decidualized endometriomas surgically removed during pregnancy

Objectives To describe the clinical history and ultrasound findings in women with decidualized endometriomas surgically removed during pregnancy. Methods In this retrospective study, women with a histological diagnosis of decidualized endometrioma during pregnancy who had undergone preoperative ultrasound examination were identified from the databases of seven ultrasound centers. The ultrasound ap

Lactic acid bacterial symbionts from the honeybee: Characteristics and applications in wound management

Popular Abstract in Swedish Det senaste decenniet har resistansen mot antibiotika ökat enormt och visat sig vara ett stort problem för många människor runt om hela världen. Överanvändning av antibiotika i maten, jordbruket och den farmaceutiska industrin har resulterat i en epidemi av infektioner som är resistenta mot nuvarande antibiotika och blir allt svårare att behandla. I och med att människoAntibiotic resistance is now a large threat with worldwide agreement that we will fall into a post-antibiotic era unless there is suitable treatment alternatives discovered. In recent years, chronic wounds have become a major burden on society and treatment is complicated. Honey has been widely used as a topical treatment for wounds yet there is much discourse between studies examining its effect

Organizational Image, Identification, and Cynical Distance: Prestigous Professionals in a Low-Prestige Organization

This study examines how a negative organizational image influences organizational identification among prestigious professionals working in a lowprestige organization. A communicative perspective on identification is used to illustrate previously unexplored processes of cynical distancing and shifts in identification targets as ways for business professionals to cope with discrepancies between the

Ontogeny of sexual dimorphism and phenotypic integration in heritable morphs

In this study we investigated the developmental basis of adult phenotypes in a non-model organism, a polymorphic damselfly (Ischnura elegans) with three female colour morphs. This polymorphic species presents an ideal opportunity to study intraspecific variation in growth trajectories, morphological variation in size and shape during the course of ontogeny, and to relate these juvenile differences