Results 61 to 70 of about 730,516 (311)
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
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
Sustainable bioplastics manufacturing from renewable sources
FEBS Open Bio, EarlyView.Bioplastics are manufactured by using polymers from different bio‐based sources. These novel materials not only offer biodegradability but also possess various functional properties that make them suitable for diverse applications. Recent developments in the preparation of bioplastics are reported, highlighting the distinct properties of each type of ...
C. Valeria L. Giosafatto +6 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
Improved heat shield/radiator [PDF]
, 1970 Thermally conductive metal shield is put in direct thermal contact with the mounting plate for the radiation detectors. External surfaces of the shield are insulated by an insulation blanket.
Smith, J. W.
core +1 more source
Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications
FEBS Open Bio, EarlyView.This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley +1 more source
Evaluation of Mail Horse-Armour
EXARC Journal, 2022 This study was undertaken to gain an understanding of the effectiveness of mail armour in protecting horses against arrow shot, and to assess the circumstances in which such armour might play a useful role.
David Jones, Emma Herbert-Davies
doaj
Determination of Radiation Shielding Features of Polyvinyl Alcohol/Magnetite-Bismuth Oxide Composite Using Precise Computational Methods and Monte Carlo Code [PDF]
Iranian Journal of Medical PhysicsIntroduction: Bismuth efficiency in shielding superficial tissues in computed tomography (CT) scans has been challenged due to the imbalance between image quality and dose reduction.
Fariba Baroonzadeh +3 more
doaj +1 more source
Infrared shield facilitates optical pyrometer measurements [PDF]
, 1965 Water-cooled shield facilitates optical pyrometer high temperature measurements of small sheet metal specimens subjected to tensile stress in fatigue tests.
Eichenbrenner, F. F., Illg, W.
core +1 more source
Alcohol‐induced altered glycans in human tracheal epithelial cells promote bacterial adhesion
FEBS Open Bio, EarlyView.Alcohol induces altered glycans to promote bacteria adhesion. Heavy alcohol drinking is known to increase the risk of bacterial pneumonia. However, the link between alcohol levels and risk of infection remains underexplored. Recently, we found that alcohol induced α2‐6sialo mucin O‐glycans in human tracheobronchial epithelial cells, which mediated the ...
Pi‐Wan Cheng +2 more
wiley +1 more source