Blar i Øvrige samlinger på tittel
Viser treff 15019-15038 av 39070
-
Gas switching reforming (GSR) for power generation with CO2 capture: Process efficiency improvement studies
(Journal article; Peer reviewed, 2019)This paper presents the process improvement studies of a combined cycle power plant integrated with a novel gas switching reforming (GSR) process for hydrogen production with integrated CO2 capture. The overall process is ... -
Gas Switching Reforming (GSR) for syngas production with integrated CO2 capture using iron-based oxygen carriers
(Journal article; Peer reviewed, 2019)The process behavior of a Gas Switching Reforming (GSR) reactor was studied using three different iron-based oxygen carrier materials: Iron-oxide on Alumina, Iron-Nickel oxide on Alumina and Iron-Ceria on Alumina. It was ... -
Gas switching reforming for flexible power and hydrogen production to balance variable renewables
(Peer reviewed; Journal article, 2019)Variablerenewableenergy(VRE)isexpectedtoplayamajorroleinthedecarbonizationoftheelectricitysector.However, decarbonization via VRE requires a fleet of flexible dispatchable plants with low CO2emissions tosupplycleanpowerduringtimes ... -
Gas Switching Reforming for syngas production with iron-based oxygen carrier-the performance under pressurized conditions
(Journal article; Peer reviewed, 2019)A four-stage Gas Switching Reforming for syngas production with integrated CO2 capture using an iron-based oxygen carrier was investigated in this study. The oxygen carrier was first reduced using dry methane, where high ... -
Gas switching technology: Economic attractiveness for chemical looping applications and scale up experience to 50 kWth
(Peer reviewed; Journal article, 2022)Gas switching technology (GST) was introduced to facilitate operation and scale-up of pressurized chemical looping-based technologies thus bringing the expected benefits of reducing costs and energy penalty of CO2 capture. ... -
Gas turbine exhaust gas heat recovery by organic Rankine cycles (ORC) for offshore combined heat and power applications - Energy and exergy analysis
(Journal article; Peer reviewed, 2018)Effective heat and power supply to offshore installations leads to environmental benefits, but the efficiency is often limited by requirements and constraints connected to the offshore environment. An exergetic analysis ... -
Gas-Atomized Nickel Silicide Powders Alloyed with Molybdenum, Cobalt, Titanium, Boron, and Vanadium for Additive Manufacturing
(Peer reviewed; Journal article, 2023)Nickel silicides (NiSi) are renowned for their ability to withstand high temperatures and resist oxidation and corrosion in challenging environments. As a result, these alloys have garnered interest for potential applications ... -
Gas-filled panels for building applications: A state-of-the-art review
(Journal article; Peer reviewed, 2010)With their thermal conductivity down to 10 mW/(mK), gas-filled panels (GFPs) are regarded as possible high performance thermal insulating solutions for building applications. However, thermal conductivities of respectively ... -
Gas-fired power plants: Investment timing, operating flexibility and CO2 capture
(Journal article; Peer reviewed, 2010)We analyze investments in gas-fired power plants based on stochastic electricity and natural gas prices. A simple but realistic two-factor model is used for price processes, enabling analysis of the value of operating ... -
Gas-lift Optimization by Controlling Marginal Gas-Oil Ratio using Transient Measurements
(Journal article; Peer reviewed, 2018)This paper presents the application of a steady-state gradient control using transient measurements to a gas-lift optimization problem. Optimal operation of a gas-lifted field involves controlling the marginal gas-oil ratio ... -
Gaseous reduction of Mn ores in CO-CO2 atmosphere
(Chapter, 2018)The efficiency in production of manganese ferroalloys is dependent on the gaseous reduction of the higher manganese oxides in the ores used as raw materials. The materials, descending in the furnace, will meet the furnace ... -
Gasification of High Heating-rate Biomass-derived Chars at Elevated Temperatures
(Journal article; Peer reviewed, 2017)In this study, gasification behavior of high heating-rate chars were investigated using an entrained flow reactor with an optical particle-sizing pyrometer. Two biomass chars produced from forest residue and torrefied ... -
Gasskraftverk med CO2-håndtering - Studie av alternative teknologier
(Research report, 2002)Rapporten dokumenterer en studie som beskriver og sammenligner 12 ulike teknologier for gasskraftverk med CO2-håndtering. Merkostnaden for å fjerne CO2 i forbindelse med elektrisitetproduksjon er i studien beregnet til ... -
Gastric Cancers Missed at Upper Endoscopy in Central Norway 2007 to 2016—a Population-Based Study
(Peer reviewed; Journal article, 2021)Simple summary: Stomach cancer may be missed during upper endoscopy. We have examined how often this occurs and identified factors associated with missed cancers. Among 730 patients with gastric cancer, 67 (9.2%) were ... -
Gastric Carcinomas Localized to the Cardia
(Journal article; Peer reviewed, 2012)Objectives. Gastric adenocarcinomas localized to the cardia are increasing. Enterochromaffin-like (ECL) cells play a role in gastric carcinogenesis in hypergastrinemia, and the use of proton pump inhibitors (PPI) leading ... -
Gastric Corpus Mucosal Hyperplasia and Neuroendocrine Cell Hyperplasia, but not Spasmolytic Polypeptide-Expressing Metaplasia, Is Prevented by a Gastrin Receptor Antagonist in H+/K+ATPase Beta Subunit Knockout Mice
(Journal article; Peer reviewed, 2020)Proton pump inhibitor use is associated with an increased risk of gastric cancer, which may be mediated by hypergastrinemia. Spasmolytic polypeptide-expression metaplasia (SPEM) has been proposed as a precursor of gastric ... -
Gastrin activates autophagy and increases migration and survival of gastric adenocarcinoma cells
(Journal article; Peer reviewed, 2017)Background: The peptide hormone gastrin exerts a growth-promoting effect in both normal and malignant gastrointestinal tissue. Gastrin mediates its effect via the cholecystokinin 2 receptor (CCKBR/CCK2R). Although a ... -
Gastrin and gastric cancer
(Journal article; Peer reviewed, 2017)Gastric cancer although occurring in reduced frequency is still an important disease, partly because of the bad prognosis when occurring in western countries. This decline in occurrence may mainly be due to the reduced ... -
Gastritis, Gastric Polyps and Gastric Cancer
(Peer reviewed; Journal article, 2021)Gastric cancer is still an important disease causing many deaths worldwide, although there has been a marked reduction in prevalence during the last few decades. The decline in gastric cancer prevalence is due to a reduction ... -
Gastroesophageal Reflux and Sleep Disturbances: A Bidirectional Association in a Population-Based Cohort Study, the HUNT Study
(Journal article; Peer reviewed, 2016)Study Objectives: To investigate the potentially bidirectional association between gastroesophageal reflux symptoms (GERS) and sleep disturbances/ insomnia disorders. Methods: We assessed the incidence of new-onset of ...