Results 81 to 90 of about 706,746 (353)

Structural Performance of Continuous Beam‐Type Circular Concrete‐Filled Steel Tubular Beam‐To‐Column Connections With Perforations in Connection Panel Flanges

open access: yesJapan Architectural Review
Continuous beam‐type connections between concrete‐filled steel tube columns and I‐section steel beams have a disadvantage in that the area of the openings for concrete filling decreases because of the existence of continuous beams. To resolve this issue,
Takashi Fujinaga   +2 more
doaj   +1 more source

Analysis of dynamic coefficients for damage to the middle support of two-span and three-span continuous beams

open access: yesMATEC Web of Conferences, 2017
The paper deals with the operation of continuous two- and three-span beams with damage to the middle support. For a two-span continuous beam, the dynamic coefficients for the action of concentrated forces over the middle support and span of the beam are ...
Tusnin Alexander
doaj   +1 more source

Room-Temperature Continuous-Wave Vertical-Cavity Single-Quantum-Well Microlaser Diodes [PDF]

open access: yes, 1989
Room-temperature continuous and pulsed lasing of vertical-cavity, single-quantum-well, surface-emitting microlasers is achieved at ~983nm. The active Ga[sub][0-8]In[sub][0-2]As single quantum well is 100 [angstroms] thick.
Florez, L. T.   +5 more
core   +1 more source

XXIX. Note on continuous beams [PDF]

open access: yesThe London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1898
n ...
Tomlinson, H. J., Pearson, Karl
openaire   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Experimental demonstration of continuous variable purification of squeezed states

open access: yes, 2006
We report on the first experimental demonstration of purification of nonclassical continuous variable states. The protocol uses two copies of phase-diffused states overlapped on a beam splitter and provides Gaussified, less mixed states with the degree ...
DiGuglielmo, J.   +4 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

Laser beam modulation by an acousto optic mode locker [PDF]

open access: yes, 2006
Nazariahmatdaud2006the characterization of beam modulation by acousto-optic mode locker is reported. Hene laser was employed as a source. Acousto-optic mode locker (aoml) was used to convert the continuous beam to become pulsed.
Bidin, Noriah   +3 more
core  

Measured Radiation and Background Levels During Transmission of Megawatt Electron Beams Through Millimeter Apertures

open access: yes, 2013
We report measurements of photon and neutron radiation levels observed while transmitting a 0.43 MW electron beam through millimeter-sized apertures and during beam-off, but accelerating gradient RF-on, operation. These measurements were conducted at the
Alarcon, R.   +22 more
core   +1 more source

Determination of the absorption length of CO2, Nd:YAG and high power diode laser radiation for a selected grouting material [PDF]

open access: yes, 2002
The laser beam absorption lengths of CO2, Nd:YAG and a high power diode laser (HPDL) radiation for a newly developed SiO2/Al2O3-based tile grout have been determined through the application of Beer-Lambert’s law.
A.W. Gale   +21 more
core   +1 more source

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