Results 71 to 80 of about 800,089 (361)
Chengshi guidao jiaotong yanjiuObjective It is aimed to tackle the inefficient accuracy of traditional Euler-Bernoulli beam and Winkler foundation model in calculating settlement induced by shield under-passing existing tunnels. Method Based on the Timoshenko beam theory and Pasternak
WANG Liang +3 more
doaj +1 more source
The deposition of miniature weaponry in Iron Age Lincolnshire
Pallas, 2011 To appreciate the significance of miniatures, we must remove them from the category of archaeological curiosities and return them to their wider social and landscape contexts.
Julia Farley
doaj +1 more source
, 1964 Compact heat shielding for interplanetary space ...
Erb, R. B., Weston, K. C.
core +1 more source
Secure agent data integrity shield [PDF]
, 2004 In the rapidly expanding field of E-Commerce, mobile agent is the emerging technology that addresses the requirement of intelligent filtering/processing of information. This paper will address the area of mobile agent data integrity protection.
Borselius +15 more
core +1 more source
Advanced 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
Permanent Shaft Repair Technology for Damaged Shield Segments in Operating Metro Tunnels
Chengshi guidao jiaotong yanjiu[Objective] During the drilling construction of ground surface dewatering shaft in a metro operational interval shield tunnel, the tunnel segments were damaged due to being pierced, resulting in sudden water hazards to interrupt metro service.
Fengyu LIAN +3 more
doaj +1 more source
Nuclear radiation problems, unmanned thermionic reactor ion propulsion spacecraft [PDF]
, 1972 A nuclear thermionic reactor as the electric power source for an electric propulsion spacecraft introduces a nuclear radiation environment that affects the spacecraft configuration, the use and location of electrical insulators and the science ...
Mondt, J. F. +2 more
core +1 more source
Shielding Effectiveness of Laminated Shields
Radioengineering, 2008 Shielding prevents coupling of undesired radiated electromagnetic energy into equipment otherwise susceptible to it. In view of this, some studies on shielding effectiveness of laminated shields with conductors and conductive polymers using plane-wave theory are carried out in this paper.
Jayasree, P. V. Y. +2 more
openaire +2 more sources
Bioinspired Materials, Designs, and Manufacturing Strategies for Advanced Impact‐Resistant Helmets
Advanced Engineering Materials, EarlyView.This review explores how bioinspired materials, structures, and manufacturing strategies transform helmet design to achieve enhanced impact resistance. Drawing inspiration from nacre, porcupine quills, beetle exoskeletons, and skull architectures, it highlights advances in auxetic lattices, nanocomposites, and functionally graded foams.
Joseph Schlager +4 more
wiley +1 more source
Applied Sciences, 2019 Shield tunneling under rivers often requires monitoring riverbed deformations in near real-time. However, it is challenging to measure riverbed deformation with conventional survey techniques.
Wen Guo +9 more
doaj +1 more source