Browsing NTNU Open by Title
Now showing items 8820-8839 of 101208
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Ballistic impact of structural steels at low temperatures
(Peer reviewed; Journal article, 2022)Steels are usually stronger at low temperatures than at high temperatures. But low temperatures are, particularly in combination with high strain rates and high stress triaxiality ratios, known to cause embrittlement. The ... -
Ballistic impact on concrete slabs: An experimental and numerical study
(Peer reviewed; Journal article, 2021)The ballistic perforation resistance of 50 mm thick concrete slabs impacted by 20 mm diameter ogive-nose steel projectiles is investigated experimentally and numerically. Three commercially produced concretes with nominal ... -
Ballistic impact resistance of additive manufactured high-strength maraging steel: An experimental study
(Peer reviewed; Journal article, 2021)Maraging steel is a low carbon steel known for its ultra high-strength after heat treatment. In combination with Additive Manufacturing (AM), the properties of maraging steel indicate potential to enable complex geometries ... -
Ballistic Penetration and Perforation of Steel Plates
(Dr. ingeniøravhandling, 0809-103X; 2000:124, Doctoral thesis, 2001)Situations involving impact, i.e. the collision between two or more solids, were at one time primarily of concern to the military. Nowadays, as safety is highlighted within most branches of industry, the field of impact ... -
Ballistic Perforation of Surface Hardened Mild Steel Plates
(Master thesis, 2014)The main objective with this thesis was to investigate experimentally and numerically the effect surface hardening has on the ballistic properties of monolithic and laminated mild steel plates. 300x300 mm^2 plates of ... -
Ballistic perforation resistance of plain and reinforced concrete slabs - An experimental and numerical study
(Chapter, 2023)As concrete is the most used construction material globally, it is vital to understand how this complex composite material behaves when subjected to extreme and potentially devastating loads like explosions or ballistic ... -
Ballistic perforation resistance of thin concrete slabs impacted by ogive-nose steel projectiles
(Peer reviewed; Journal article, 2021)Concrete is a material frequently used in protective structures exposed to extreme loading. In this study, the ballistic perforation resistance of 50 mm thick plain concrete slabs impacted by 20 mm diameter ogive-nose steel ... -
Ballistic-Limit Velocities for 7.62 mm APM2 Bullets and Aluminum Alloy Armor Plates
(Journal article; Peer reviewed, 2021)In a previous paper, we presented a scaling law for the ballistic-limit velocity for the 7.62 mm APM2 bullet and aluminum armor plates. This scaling law predicts that the ballistic-limit velocity is proportional to the ... -
The Baltic Sea: An ecosystem with multiple stressors
(Peer reviewed; Journal article, 2021)This introductory chapter to our Environment International VSI does not need an abstract and therefore we just include our recommendations below in order to proceed with the resubmission. Future work should examine waterbirds ... -
Bamboo Housing for Vulnerable Communities Case Studies of Saptari and Morang District in Nepal
(Master thesis, 2022)Abstrakt Sosial ekskludering på grunn av rase, religion, kaste, tro er et globalt fenomen som sees overalt i verden. Visse grupper av befolkningen blir sårbare på grunn av ekskludering fra hovedsamfunnet som hindrer dem ... -
Bananas and Bullets: Non-Governmental Governmentality in Sri Lanka
(Master thesis, 2012)The state and the civil society are often presented as two opposing forces in both popular and academic circles. The state is ascribed with vertical properties, while the civil society, and thereby NGOs, are “rooted” and ... -
Bananskall til proteiner: bananskall som substrat for E. coli K12
(Bachelor thesis, 2021)Det kastes ufattelig store mengder mat globalt og i 2019 ble 17% av all mat kastet. I butikkene er bananen mest utsatt på grunn av dens evne til å lett brunes ved modning og skade. 35% av bananen består av bananskallet som ... -
Band gap alterations of graphitic carbon nitride for photoelectrochemical water splitting
(Master thesis, 2023)En viktig energibærer for framtiden er hydrogengass, hvor utviklingen av effektive grønne produksjonsmetoder er nødvendig for å minimere miljøpåvirkningen av global oppvarming. En slik metode er fotoelektrolyse av vann, ... -
Band gap temperature-dependence and exciton-like state in copper antimony sulphide, CuSbS2
(Journal article; Peer reviewed, 2018)The temperature-dependence of the band gap of the proposed photovoltaic absorber copper antimony sulphide (CuSbS2) has been studied by Fourier-transform infrared spectroscopy. The direct gap rises from 1.608 to 1.694 eV ... -
Band gaps in jagged and straight graphene nanoribbons tunable by an external electric field
(Journal article; Peer reviewed, 2015)Band gap control by an external field is useful in various optical, infrared and THz applications. However, widely tunable band gaps are still not practical due to a variety of reasons. Using the orthogonal tight-binding ... -
Band-edge modification and mid-infrared absorption of co-deposited FexZn1-xS thin films
(Journal article; Peer reviewed, 2015)The bandgap of iron-doped ZnS has been reported by others to change significantly under the addition of a few atomic percent of iron, which would have significant implications for solar energy. Here, thin films of FexZn1-xS ... -
Bandgap measurement of high refractive index materials by off-axis EELS
(Journal article; Peer reviewed, 2017)In the present work Cs aberration corrected and monochromated scanning transmission electron microscopy electron energy loss spectroscopy (STEM-EELS) has been used to explore experimental set-ups that allow bandgaps of ... -
Bandgap measurement of high refractive index materials by off-axis EELS
(Journal article; Peer reviewed, 2017)In the present work Cs aberration corrected and monochromated scanning transmission electron microscopy electron energy loss spectroscopy (STEM-EELS) has been used to explore experimental set-ups that allow bandgaps of ... -
Bandura’s self-efficacy model used to explore participants’ experiences of health, lifestyle, and work after attending a vocational rehabilitation program with lifestyle intervention : a focus group study
(Journal article; Peer reviewed, 2021)Purpose: We aimed to use the self-efficacy model to examine the participants’ experience, attitudes, and viewpoints regarding the association between work, health and lifestyle factors that influence work participation ...