Publications: Recent submissions
Now showing items 201-220 of 2887
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Colliding Pulse Mode Locking and Nonequilibrium Carrier Dynamics within Vertical External-Cavity Surface-Emitting Lasers
(2022-08-02)The complex nonlinear dynamics of colliding counterpropagating ultrashort laser pulses circulating in a vertical external-cavity surface-emitting ring laser cavity are captured by a first-principles quantum-mechanical ... -
3D Rendering of Shipwrecks from Synthetic Aperture Sonar
(2021-10-25)Synthetic aperture sonar (SAS) bathymetric mapping provides centimeter-scale horizontal resolution of the seafloor. Typically, SAS data has been visualized as 2D images or gridded 2.5D surfaces, but it can also be plotted ... -
Ultrafast Pulse Compression in Bulk with > 20 Times Spectral Broadening Factor from a Single Stage
(2021-11-01)We introduce the combination of multi-pass cell and multi-plate spectral broadening. We demonstrate the compression of 110-μJ pulses from 900-fs to 60-fs in a single stage and report broadening to 38-fs transform-limit by ... -
Discrete Fourier Transform with Neural Networks
(2021-12-10)The discrete Fourier transform is an important computational tool to retrieve the frequency distribution of a sampled signal. Recent years have also witnessed considerable research activity in neural networks as a mean to ... -
Typical Products for Outside Audiences: The Role of Typicality When Products Traverse Countries
(2022-12-02)While organization theorists have established the importance of typicality, most studies examine situations where producers and audiences dwell within the same category system (e.g., a country, industry, or market). ... -
The Motivation to Serve in the Military Among Swedish and Norwegian Soldiers. A Comparative Study
(2020)The geographic location of Sweden and Norway, combined with a deteriorated security situation in the Nordic Region and a renewed focus on national defense, makes the development of their armed forces a hot topic. In ... -
Small-scale fire performance assessment of intumescent coatings on metal tubes containing ammonium nitrate. A stepping-stone towards their application as a fire safety measure on road transportation tanks?
(2021-11)Ammonium nitrate is used in vast amounts globally, first and foremost as a component of fertilizers and explosive formulations. This usage necessitates its transportation which, as for most hazardous materials, involves ... -
Responsible Research and Innovation Associated With Risk Communication and Public Engagement on Health Emergency Preparedness at the Local Level
(2022-04-05)Responsible Research and Innovation (RRI) associated with public health emergency preparedness (PHEP) and response pose major challenges to the scientific community and civil society because a multistakeholder and ... -
SARS-CoV-2 in the Air Surrounding Patients during Nebulizer Therapy
(2022-09-17)Nebulizer therapy is commonly used for patients with obstructive pulmonary disease or acute pulmonary infections with signs of obstruction. It is considered a “potential aerosol-generating procedure,” and the risk of disease ... -
Damper models and their impact on shock response
(2022-10-26)Mechanical vibration and shocks may be devastating, in particular to military equipment. Therefore, vibration and shock damping are of crucial importance to military hardware. Vibrations can cause material fatigue. They ... -
Equipment to tag, track and collect biopsies from whales and dolphins: the ARTS, DFHorten and LKDart systems
(2022-10-21)Of all animals considered subjects for instrumentation for behavioral or physiological studies, cetaceans probably represent the greatest challenge to the engineer and biologist. The marine environment being harsh to ... -
Aspects of Underwater Explosions and Preliminary Modeling in Impetus
(2022-11-17)The subject of this report, is the physics of underwater explosions (undex). The report has several goals: • Develop FFI’s basic knowledge of undex phenomena as part of the project ”1581, Våpenvirkningsmekanikk”. • ... -
Vibrational Corrections to NMR Spin-Spin Coupling Constants from Relativistic Four-Component DFT Calculations
(2022-09-22)Zero-point vibrational (ZPV) corrections to the nuclear spin–spin coupling constants have been calculated using four-component Dirac–Kohn–Sham DFT for H2X (where X = O, S, Se, Te, Po), XH3 (where X = N, P, As, Sb, Bi), and ... -
Molecular properties of energetic materials and the use of quantumchemical methods for their determination
(2022-11-11)Energetic materials find countless applications of relevance to the defence sector, as typical classes of energetic materials are propellants, explosives and fuels. To ensure safe handling of such materials, obtaining ... -
Target detection in radars using small neural networks
(2022-08-17)Target detection is an essential part of radar systems. An important objective in radar target detection is to satisfy two often contradictory requirements: a high probability of detection with a low false alarm rate. ... -
Safe storage of ammonium nitrate products –scientific framework for government regulations
(2022-10-27)Ammonium nitrate (AN) is a solid chemical compound of paramount significance in the field of agriculture, as a high-nitrogen fertilizer component, and in the formulation of blasting explosives having major civilian ... -
Hva kan Norge lære av andre lands tilnærming til sammensatte trusler? – rapport til Forsvarskommisjonen
(2022-11-15)Forsvarskommisjonen av 2021−2023 skal vurdere sikkerhets- og forsvarspolitiske veivalg og prioriteringer for Norge i et 10−20-årsperspektiv. Som en del av denne vurderingen har Forsva-rets forskningsinstitutt (FFI) fått i ... -
Tribal engagement strategies in the Islamic Emirate of Azawad
(2022-09-02)The Tuareg uprising in northern Mali in 2012 culminated in the establishment of the Islamic Emirate of Azawad, a proto-state run jointly by Tuareg Islamists in Ansar Dine and foreign jihadists with connections to al-Qaida ... -
Økonomisk statshåndverk, teknologisk utvikling og implikasjoner for norsk sikkerhet – en forstudie
(2022-11-07)Den teknologiske utviklingen vil endre hvordan stater kan benytte økonomiske virkemidler for å fremme sine interesser i internasjonal politikk, men dette er i liten grad behandlet i eksisterende litteratur om økonomisk ... -
Forebygging av kaldværsskader i Forsvaret – sluttrapport fra arbeidsgruppe
(2022-09-14)Kaldværsskader er en utfordring for Forsvaret. De siste årene har det i snitt vært registrert mellom 120–150 nye skader per år. Dette er et meget høyt antall og viser behovet for å styrke arbeidet med å forebygge slike ...