Results 71 to 80 of about 617,554 (343)

SIVdrl detection in captive mandrills: are mandrills infected with a third strain of simian immunodeficiency virus? [PDF]

open access: yes, 2004
A pol-fragment of simian immunodeficiency virus (SIV) that is highly related to SIVdrl-pol from drill monkeys (Mandrillus leucophaeus) was detected in two mandrills (Mandrillus sphinx) from Amsterdam Zoo.
Berkhout, Ben   +5 more
core   +7 more sources

Impact of Hot Isostatic Pressing on Microstructure Evolution and Creep Performance of Powder Bed Fusion–Laser Beam Processed CM247LC

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of Hot Isostatic Pressing (HIP) temperature on the microstructure and creep performance of powder bed fusion–laser beam processed CM247LC superalloy is investigated. Grain growth and γ’ precipitate evolution are characterized following HIP at varying temperatures.
Ahmed Fardan   +4 more
wiley   +1 more source

Survey of information concerning large diameter deep hole drilling [PDF]

open access: yes, 1972
Data are presented, covering drilling techniques, factors affecting penetration rates, cost estimation, and system improvement.

core   +1 more source

Microstructural Evolution and Mechanical Properties of a Medium‐Manganese Steel Manufactured by Laser‐Based Powder Bed Fusion of Metals

open access: yesAdvanced Engineering Materials, EarlyView.
Fe–12Mn–0.2C medium‐manganese steel is processed by laser‐based powder bed fusion of metals using blended as well as pre‐alloyed powder. Various scanning speeds are used to determine the influence of energy deposition rate on microstructure and mechanical properties.
Leoni Hübner   +4 more
wiley   +1 more source

A Dynamic Model For A Drill In The Drilling Process

open access: yes, 2008
{"references": ["D. D. Rosard, \"Natural Frequency of Twisted Cantilever Beams,\" in 1952\nPro. ASME Paper No. 52-A-15,", "G. W. Jarrett and P. C. Warner, \"The Vibration of Rotating Tapered Twisted Beam,\" ASME, Journal of Applied Mechanics, pp. 381-389,1953.", "O. Tekinalp and A. G.
Bo Wun Huang   +3 more
openaire   +1 more source

Optimizing Laser Ablation of Stainless Steels for Volume Removal and Surface Quality Using Burst of Pulses

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the ablation efficiency and surface quality of laser‐treated stainless steel alloys (AISI 304, AISI 420, and AISI 316Ti) using an ultrashort pulsed laser and varying burst parameters (MHz, GHz, and Bi‐burst). Both ablation rates and surface quality parameters are determined, including isotropy surface roughness values, highlighting ...
Dirk Obergfell   +2 more
wiley   +1 more source

Hand drill adapter limits holes to desired depth [PDF]

open access: yes, 1966
Adjustable adapter fastened to the shank of a drill bit limits the depth of bored holes.

core   +1 more source

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov   +8 more
wiley   +1 more source

Noise reduction of dental drill noise [PDF]

open access: yes, 2008
Dental drills produce a characteristic noise that is uncomfortable for patients and is also known to be harmful to dentists under prolonged exposure.
Atherton, MA   +3 more
core  

Direct Recycling of Cold Work Tool Steel Swarf into New Cutting Disks via Field‐Assisted Sintering

open access: yesAdvanced Engineering Materials, EarlyView.
Through a sintering method known as field‐assisted sintering technology/spark plasma sintering, cold work tool steel swarf can be directly recycled into new cutting disks. This method is capable of densifying the unconventional powder morphology of swarf, and it can also seal grinding contaminants, such as Al2O3, into the steel matrix.
Monica Keszler   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy