Results 121 to 130 of about 397,660 (289)

Study of attachment methods for advanced spacecraft thermal-control materials, phase 1 Summary report [PDF]

open access: yes
Attachment methods for thermal control composite material system consisting of second-surface mirrors and multiple layer ...
Kordsmeier, N. H., Jr., Renalds, O. B.
core   +1 more source

Experimental and theoretical investigation of longitudinal tunnel lining joints with confining reinforcement

open access: yesStructural Concrete, EarlyView.
Abstract Precast reinforced concrete segmental linings are frequently used in modern tunneling. In these linings, the longitudinal joints typically have a reduced contact cross‐section and thus often govern the design, particularly in tunnels under high hydrostatic pressure or crossing squeezing or swelling ground with correspondingly high ...
Fabian Morger   +2 more
wiley   +1 more source

Drone‐based radiotelemetry and imagery systems provide an advantage over traditional techniques for estimating survival of dependent juveniles

open access: yesWildlife Society Bulletin, EarlyView.
We used drone‐based radiotelemetry and multispectral imagery to estimate detection and survival probabilities of blue‐winged teal broods in Saskatchewan, Canada. Weekly brood survival probabilities, estimated via Cormack‐Jolly‐Seber models, increased with age and were comparable between drone methods.
Grant A. Rhodes   +5 more
wiley   +1 more source

Nonterrestrial utilization of materials: Automated space manufacturing facility [PDF]

open access: yes, 1982
Four areas related to the nonterrestrial use of materials are included: (1) material resources needed for feedstock in an orbital manufacturing facility, (2) required initial components of a nonterrestrial manufacturing facility, (3) growth and ...

core   +1 more source

Distributed Formation Control for Heterogeneous Robot Systems Based on Competitive Mechanism

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT This paper presents an adaptive formation control method for a heterogeneous robot swarm, utilising a multilevel formation task tree to model various types of formation tasks and a single‐state distributed k‐winner‐take‐all (S‐DKWTA) algorithm to address the MRTA problem.
Zhenghui Cui, Xiaoyi Gu, Ning Tan
wiley   +1 more source

Experimental and Theoretical Study on the Fatigue Crack Propagation in Stud Shear Connectors. [PDF]

open access: yesMaterials (Basel), 2023
Kuang Y   +6 more
europepmc   +1 more source

Spartan Daily, November 4, 1954 [PDF]

open access: yes, 1952
Volume 43, Issue 32https://scholarworks.sjsu.edu/spartandaily/12084/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +4 more sources

Arc Resistance Enhancement of Converter Transformer Tank Through Structural Improvements: Simulation and Experimental Validation

open access: yesHigh Voltage, EarlyView.
ABSTRACT Currently, limited research exists on the structural response and protection methods of the converter transformer tank for ± 800 kV ultra‐high voltage direct current transmission project to high energy arc faults. This research investigates the dynamic response and the vulnerable areas of the ultra‐high voltage converter transformer under the ...
Ke Wang   +5 more
wiley   +1 more source

Experimental Investigation and Analysis of Bond–Slip Behavior between Geopolymer Concrete and Steel Tube with Varying Structural Measures

open access: yesBuildings
In this study, push-out tests were conducted on 20 specimens to explore the bond–slip performance of geopolymer concrete-filled steel tubes. The investigation focused on the effects of various design parameters such as length–diameter ratio, diameter ...
Dandan Li   +5 more
doaj   +1 more source

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