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Article
Fatigue Crack Growth and Fracture Studies on Stainless Steel Straight Pipes Having Circumferential Surface Crack
The primary objective of this manuscript is to verify the LBB criterion, by carrying out fatigue crack growth (FCG) and fracture tests on SA 312 Type 304LN stainless steel pipes having a part-through crack in ...
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Article
Investigation on the behaviour of concrete composite slab system with different levels of interface shear design
Concrete composite slab system, comprised of two half-slabs connected integrally through shear connectors, has gained popularity due to fast-track construction of bridges and buildings. Flexural performance an...
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Article
Fracture Studies on Through-Wall Cracked Straight Pipes and Elbows under Internal Pressure and Bending
In service, the pi** components (pipes/elbows) are subjected to different operational loadings such as thermal stress, internal pressure, self-weight, external loading from soil movement, flow induced vibrat...
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Chapter and Conference Paper
Crack Growth Life Prediction in API 5L X46 Grade Steel Pipes Subjected to Cyclic Internal Pressure
Pipelines used for transporting oil, gas and other petroleum products operate under pressure resulting in formation of fatigue cracks leading to the risk of catastrophic failure of pi** systems. It is import...
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Article
Frontiers in accretion physics at high X-ray spectral resolution
Microcalorimeters have shown remarkable success in delivering high-spectral-resolution observations of the hot and energetic Universe, and have paved the way to revolutionary new science possibilities in X-ray...
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Article
A persistent ultraviolet outflow from an accreting neutron star binary transient
All disc-accreting astrophysical objects produce powerful disc winds. In compact binaries containing neutron stars or black holes, accretion often takes place during violent outbursts. The main disc wind signa...
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Article
Time domain astronomy with the THESEUS satellite
THESEUS is a medium size space mission of the European Space Agency, currently under evaluation for a possible launch in 2032. Its main objectives are to investigate the early Universe through the observation ...
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Chapter and Conference Paper
Numerical Studies on Ratcheting Behaviour of Straight Pipes
In order to simulate behaviour in SA 312 Type 304 LN stainless steel of 168 mm nominal outer diameter used in power plant systems, finite element studies were carried out under combined internal pressure ...
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Chapter and Conference Paper
Assessment of Speckle Pattern for Use in Digital Image Correlation Analysis Using Simulated Displacement Field
Local stresses and strains near the crack tip control fatigue crack growth process. Calculation of elastic–plastic strains and stresses at the crack tip requires solving the nonlinear boundary value problem of...
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Article
Nine-hour X-ray quasi-periodic eruptions from a low-mass black hole galactic nucleus
In the past two decades, high-amplitude electromagnetic outbursts have been detected from dormant galaxies and often attributed to the tidal disruption of a star by the central black hole1,2. X-ray emission from ...
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Chapter and Conference Paper
Monotonic Fracture Studies on Bi-metallic Pipe Weld Joints Having Circumferential Through-Wall Crack
Bi-metallic welded joints are necessary in pressurized and boiling water reactors where heavy section low alloy carbon steel components are connected to stainless steel primary pi** systems. The behaviour of...
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Article
An elevation of 0.1 light-seconds for the optical jet base in an accreting Galactic black hole system
Relativistic plasma jets are observed in many systems that host accreting black holes. According to theory, coiled magnetic fields close to the black hole accelerate and collimate the plasma, leading to a jet ...
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Article
Fatigue Life Evaluation of Fillet Welded Cruciform Joints with Load-Carrying Welds
Fatigue life of fillet welded cruciform joints with load-carrying welds conforming to Constructional Detail 26 (Detail Category 52) of IS 800: 2007 and made of IS 2062 Gr. E 300 steel plates of two different t...
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Chapter and Conference Paper
Studies on Fatigue Life of Typical Welded and Bolted Steel Structural Connections
This paper presents the results of fatigue tests conducted on typical welded and bolted connections made of IS 2062: 2011 steel and conforming to selected Constructional Details categorised in IS 800: 2007. Th...
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Chapter and Conference Paper
Is GFRP Rebar a Potential Replacement for Steel Reinforcement in Concrete Structures?
The use of Glass Fibre Reinforced Plastic (GFRP) rebars as a potential replacement for steel reinforcement has raised quite a bit of controversy among the professionals and engineers engaged in the constructio...
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Article
Open AccessLong-Term (1 Year) Safety and Efficacy of Methylphenidate Modified-Release Long-Acting Formulation (MPH-LA) in Adults with Attention-Deficit Hyperactivity Disorder: A 26-Week, Flexible-Dose, Open-Label Extension to a 40-Week, Double-Blind, Randomised, Placebo-Controlled Core Study
Previously, in a 40-week, randomised, double-blind, placebo-controlled core study comprising three phases (9-week dose confirmation, 5-week open-label dose optimisation and 6-month maintenance o...
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Article
Using a model of the performance measures in Soft Systems Methodology (SSM) to take action: a case study in health care
This paper uses a case study of a multidisciplinary colorectal cancer team in health care to explain how a model of performance measures can lead to debate and action in Soft System Methodology (SSM). This stu...
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Article
The Large Observatory for X-ray Timing (LOFT)
High-time-resolution X-ray observations of compact objects provide direct access to strong-field gravity, to the equation of state of ultradense matter and to black hole masses and spins. A 10 m2-class instrument...
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Chapter and Conference Paper
The Dispersion of the MIR – Hard X-ray Correlation in AGN
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Article
Microbiological transformation of biflavone
Incubation of 5,5′-7,7′-tetramethoxy-8,8′-biflavone withAspergillus niger results in the formation of 4,4′-dihydroxy-5,5′-7,7′-tetramethoxy-8,8′-biflavan.
