Browsing Articles by Title
Now showing items 711-730 of 843
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Statistics-based filtering for low signal-to-noise ratios, applied to rocket plume imaging
(2017)Extracting information from low signal to noise ratio images poses significant challenges. Noise makes extracting spatial features difficult, in particular if extraction of both large, smooth features at the same time as ... -
A Status Update on Quantum Safe Cryptography
(2021-07-20)There is an ongoing effort to standardize asymmetric cryptography that should not be attackable by a quantum computer. The process is now into its final rounds. From 69 initial submissions from academia and industry, a ... -
Stochastic Analysis of England Grain Prices 1750-1850
(2012)We study the prices of grain in England 1750-1850, with special attention to the Tamboro volcano eruption time period 1815-1820. Two different types of time series are constructed and compared with the historical data. ... -
Stochastic space interval as a link between quantum randomness and macroscopic randomness?
(2017)For many stochastic phenomena, we observe statistical distributions that have fat-tails and high-peaks compared to the Gaussian distribution. In this paper, we will explain how observable statistical distributions in the ... -
Stochastic Theories and Deterministic Differential Equations
(2010-05)We discuss the concept of “hydrodynamic” stochastic theory, which is not based on the traditional Markovian concept. A Wigner function developed for friction is used for the study of operators in quantum physics, and for ... -
Strain rate dependency and fragmentation pattern of expanding warheads
(2014-12-22)For the characterization of the behaviors of a metal material in events like expanding warheads, it is necessary to know its strength and ductility at high strain rates, around 104 e105 /s. The flyer plate impact testing ... -
Strategy for Detection and High-Resolution Characterization of Authigenic Carbonate Cold Seep Habitats Using Ships and Autonomous Underwater Vehicles on Glacially Influenced Terrain
(2019-11-26)Cold seep habitats with authigenic carbonates and associated chemosynthetic communities in glacially influenced terrains constitute an important part of the benthic ecosystems, but they are difficult to detect in large-scale ... -
A Study of the Detonation Properties, Propellant Impulses, Impact Sensitivities and Synthesis of Nitrated ANTA and NTO Derivatives
(2016)Nitrated derivatives of 5-amino-3-nitro-1,2,4-triazole (ANTA) and 3-nitro-1,2,4-triazol-5-one (NTO) were theoretically characterized with respect to their performance as high explosives and rocket propellants. The detonation ... -
A Study of the Detonation Properties, Propellant Impulses, Impact Sensitivities and Synthesis of Nitrated ANTA and NTO Derivatives
(2016)Nitrated derivatives of 5-amino-3-nitro-1,2,4-triazole (ANTA) and 3-nitro-1,2,4-triazol-5-one (NTO) were theoretically characterized with respect to their performance as high explosives and rocket propellants. The detonation ... -
Study of the seasonal ozone variations at European high latitudes
(2011)The geographic area at high latitudes beyond the polar circle is characterized with long darkness during the winter (polar night) and with a long summertime insolation (polar day). Consequentially, the polar vortex is ... -
Study of thermal instability of HMX crystalline polymorphs with and without molecular vacancies using reactive force field molecular dynamics
(2016)The sensitivity of energetic materials can be identified by heat, friction, impact, shock, electrostatic charge, etc. A complexity of various factors may influence the sensitivity and among them are the crystal structure ... -
Studying the time trend of Methicillinresistant Staphylococcus aureus (MRSA) in Norway by use of non-stationary γ-Poisson distributions
(2015)Objectives Study the time development of methicillin-resistant Staphylococcus aureus (MRSA) and forecast future behaviour. The major question: Is the number of MRSA isolates in Norway increasing and will it continue to ... -
The subway microbiome: Seasonal dynamics and direct comparison of air and surface bacterial communities
(2019-12-19)Background Mass transit environments, such as subways, are uniquely important for transmission of microbes among humans and built environments, and for their ability to spread pathogens and impact large numbers of people. ... -
Successful IT projects – A multiple case study of benefits management practices
(2023-03-22)Delivering project benefits for users and society is a key aspect of success in public IT projects. The traditional success measures, such as time and cost, only tell parts of the story. Furthermore, one of the main ... -
Sum-frequency generation of high-energy and hig-beam-quality ultraviolet pulses
(2011)Sum-frequency generation of UV pulses exceeding 25 mJ and with beam quality has been demonstrated by mixing the third harmonic pulses of a flash lamp pumped 1.06 μm Nd:YAG laser with 1.7 μm pulses from an optical parametric ... -
Superb Winter fur insulation in small Siberian musk deer (Moschus moschiferus)
(2015)We compared the morphology and thermal characteristics of winter pelage from two Siberian musk deer Moschus moschiferus (aged 5 and 41 mo.; 5.7 and 9.5 kg) and two Eurasian reindeer Rangifer tarandus tarandus (aged >48 ... -
Supporting artificial intelligence with artificial images
(2018)Infrared (IR) imagery is frequently used in security/surveillance and military image processing applications. In this article we will consider the problem of outlining military naval vessels in such images. Obtaining these ... -
Supralethal poisoning by any of the classical nerve agents is effectively counteracted by procyclidine regimens in rats
(2015)A treatment regimen consisting of HI-6, levetiracetam, and procyclidine (termed the triple regimen) has previously been shown to work as a universal therapy against soman poisoning in rats, since it has capacities to ... -
Surface treatment of alumina ceramic for improved adhesion to a glass fibre-reinforced polyester composite
(2015)The adhesion between an alumina ceramic and a glass fibre-reinforced polyester matrix composite has been investigated. The effect of various alumina surface treatments, including degreasing, etching, plasma, grit-blasting ... -
Surgical helmets can be converted into efficient disinfectable powered air-purifying respirators
(2021-12-25)Background Filtering facepiece respirators often fail to provide sufficient protection due to a poor fit. Powered air-purifying respirators (PAPRs) are not designed for healthcare personnel, and are challenging to disinfect. ...