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Influence of reactive species on the lean blowout limit of an industrial DLE gas turbine burner

In order to achieve ultra-low emissions of both NOX and CO it is imperative to move the blow out limit towards leaner equivalence ratios and by supplying heat and reactive species to the flame zone the lean stability limit can be lowered. Heat and reactive species can be supplied to the flame zone by use of a pre-chamber combustor. In this study a central body burner, called the RPL (Rich-Pilot-Le

Bränder i boendemiljö - En förstudie från BRANDFORSK

The Swedish Board of Fire Research has initiated a pre-study to investigate the possibility to setup a larger research project that would deal with residential fires. Through interviews, literature studies and an initial statistical study, it is clear that there is a need for an umbrella project that focuses on residential fires. The major reason for doing this it that the costs of residential f

Photocoagulation of human retinal pigment epithelial cells in vitro: evaluation of necrosis, apoptosis, cell migration, cell proliferation and expression of tissue repairing and cytoprotective genes.

Sight-threatening diabetic retinopathy has been treated with photocoagulation for decades but the mechanisms behind the beneficial clinical effects are poorly understood. One target of irradiation and a potential player in this process is the retinal pigment epithelium (RPE). Here we establish an in vitro model for photocoagulation of human RPE cells.

Testing a post-copulatory pre-zygotic reproductive barrier in a passerine species pair

Sexual selection may drive speciation, but most research focuses on pre-copulatory sexual selection, overlooking post-copulatory processes. Post-copulatory sexual selection in allopatric populations could drive divergence in post-copulatory pre-zygotic (PCPZ) phenotypes, limiting gene flow upon secondary contact. Here, we performed in vitro experiments examining one potential PCPZ barrier between

Functionality of epidermal melanin pigments: current knowledge on UV-dissipative mechanisms and research perspectives.

So far it is not known whether epidermal melanins are solely photoprotective or also phototoxic. Also largely unknown are underlying UV-induced mechanisms and impact of the chemical structure. This perspective will focus on the current insights into the UV-dissipative mechanisms in melanin model systems and the implications for the in vivo pigments. We will also identify future research perspectiv

Modification of SOVA-based Algorithms for Efficient Hardware Implementation

In this paper, a modified soft-output Viterbi algorithm (SOVA) is presented to enable efficient hardware implementation. The forward-only processing of the SOVA has an inherent lower latency than forward-backward algorithms such as BCJR and its offspring, which are commonly used in iterative decoders. Thus, SOVA-based architectures require less parallelization and therefore hardware for the same d

Quasi zero-background tunable diode laser absorption spectroscopy employing a balanced Michelson interferometer.

Tunable diode laser spectroscopy (TDLS) normally observes small fractional absorptive reductions in the light flux. We show, that instead a signal increase on a zero background can be obtained. A Michelson interferometer, which is initially balanced out in destructive interference, is perturbed by gas absorption in one of its arms. Both theoretical analysis and experimental demonstration show that

BIM Anatomy - An Investigation into Implementation Prerequisites

This thesis presents the results of an investigation into BIM implementation prerequisites emerging as a set of procedural supporting mechanisms that may enable design, construction and operating (DCO) organisations to advance their deployment of Building Information Modelling (BIM) technology, and improve construction project outcomes. Today, BIM is centre-stage within the construction sector the

Detection by near-infrared spectroscopy of large lipid cores at culprit sites in patients with non-st-segment elevation myocardial infarction and unstable angina

ObjectiveThis study was performed to assess the lipid burden of culprit lesions in non-ST-segment elevation myocardial infarction (non-STEMI) and unstable angina (UA). BackgroundA recent intracoronary near-infrared spectroscopy (NIRS) study showed 85% of STEMI culprit lesions have a maximum lipid core burden index in 4-mm (maxLCBI(4mm))400. Whether culprit lesions in non-STEMI and UA are character

Donor-anion interactions at the charge localization and charge ordering transitions of (TMTTF)(2)AsF6 probed by NEXAFS

High-resolution near-edge X-ray absorption fine structure (NEXAFS) measurements at the As M-edge, F K-edge and S L-edge of the Fabre salt (TMTTF)(2)AsF6 were performed from room temperature (RT) to 90 K, allowing to reach the charge localization regime below T-rho approximate to 230 K and to cross the charge ordering (CO) transition at T-CO approximate to 102 K. The F K-edge and S L-edge spectra e

Workshop on Timing Modes for Low-Emittance Storage Rings

A three-day workshop was held in Lund, Sweden, from March 25 to 27, 2015, with a focus on timing modes for low-emittance storage rings. The MAX IV Laboratory, currently under construction in Lund, will provide a 1.5 GeV storage ring for soft X-rays and a 3 GeV storage ring with an ultralow emittance down to 0.2 nm rad for hard X-rays [1]. Both rings are designed to operate with a uniform multibunc

Spatial uncoupling of biodegradation, soil respiration, and PAH concentration in a creosote contaminated soil.

Hotspots and coldspots of concentration and biodegradation of polycyclic aromatic hydrocarbons (PAHs) marginally overlapped at the 0.5-100 m scale in a creosote contaminated soil in southern Sweden, suggesting that concentration and biodegradation had little spatial co-variation. Biodegradation was substantial and its spatial variability considerable and highly irregular, but it had no spatial aut

An opportunity for diagonal development in global surgery: cleft lip and palate care in resource-limited settings

Global cleft surgery missions have provided much-needed care to millions of poor patients worldwide. Still, surgical capacity in low- and middle-income countries is generally inadequate. Through surgical missions, global cleft care has largely ascribed to a vertical model of healthcare delivery, which is disease specific, and tends to deliver services parallel to, but not necessarily within, the l

Hypoxic Adaptation and Arsenic Trioxide Treatment in Small Cell Lung Carcinoma

Popular Abstract in Swedish Cancer är ett samlingsnamn för en grupp av sjukdomar som karakteriseras av att cellerna delar sig okontrollerat, till skillnad mot kroppens friska celler. Det leder till att en tumör kan bildas och cellerna kan därifrån sprida sig till andra delar av kroppen och ge upphov till dottertumörer, även kallade metastaser. I Sverige uppskattar man att cirka var tredje person kSmall cell lung carcinoma (SCLC) is a very aggressive solid tumor and is often widely metastasized by the time of diagnosis. Despite good response to the initial chemotherapy, SCLC cells often develop multidrug resistance to conventionally used chemotherapeutic drugs, which cause almost all SCLC tumors to relapse. The 5-year survival rate for patients with limited disease is around 20% while it is