Results 1 to 10 of about 3,667,608 (301)

CALCULATION OF FLEXIBLE BENDING ELEMENTS OF A FLIGHT STRUCTURE GIVEN THEIR ACTUAL CONDITION [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2021
This article presents the results of the analysis of experimental data on testing of reinforced concrete elements for multiple-repeated loads and field tests of operated span structures. This article proposes dependencies on the definition of deflections
Nodira SOATOVA
doaj   +1 more source

Type series of resonant vibration equipment for concrete mixtures compaction and its main parameters calculation method

open access: yesВестник СибАДИ, 2023
Introduction. Increasing the energy efficiency of vibration technology poses a number of challenges for its developers. A promising direction for reducing energy costs for driving vibration machines is the use of the resonance phenomenon.
V. G. Zedgenizov, S. Kh. Faizov
doaj   +1 more source

Complex mathematical modelling of mechatronic modules of promising mobile objects [PDF]

open access: yesINCAS Bulletin, 2020
The characteristics of power sources affect the performance of autonomous electrically driven systems, such as unmanned aerial vehicles, aircraft missiles, guided bombs, torpedoes, space and aerospace vehicles, controlled gliding parachutes. The creation
Ye Ko KYAW   +2 more
doaj   +1 more source

Calculation Method of the Design Thickness of a Frozen Wall with Its Inner Edge Radially Incompletely Unloaded

open access: yesApplied Sciences, 2023
The technology for freezing shaft sinking is widely used for shafts to pass through deep, unstable alluvia with the continuous exploitation of mineral resources. Due to the technique using the sectional excavation and shaft lining construction adopted in
Chenchen Hu   +3 more
doaj   +1 more source

Estimating the CMIP6 Anthropogenic Aerosol Radiative Effects with the Advantage of Prescribed Aerosol Forcing

open access: yesAtmosphere, 2021
The prescribed anthropogenic aerosol forcing recommended by Coupled Model Intercomparison Project Phase 6 (CMIP6) was implemented in an atmospheric model.
Xiangjun Shi   +4 more
doaj   +1 more source

A Mass Balance-Based Method for the Anaerobic Digestion of Rice Straw

open access: yesEnergies, 2023
Current rice straw disposal practices have serious repercussions on the environment and, in addition, do not consider its energy potential. On the contrary, the anaerobic digestion of rice straw makes it possible to produce renewable energy and to ...
Maurizio Bressan   +3 more
doaj   +1 more source

Calculation Method of the Finite Soil Pressure for a New Foundation Pit Adjacent to an Existing Subway Station

open access: yesApplied Sciences, 2023
The study aimed at the simple prediction problem of finite soil pressure for a new foundation pit adjacent to an existing subway station. Failure modes of the finite soil were proposed.
Zhenbo Zhang   +4 more
doaj   +1 more source

Mathematical Modeling of an Electrotechnical Complex of a Power Unit Based on Hydrogen Fuel Cells for Unmanned Aerial Vehicles

open access: yesEnergies, 2021
The issues of mathematical and numerical simulation of an electrical complex of a power plant based on hydrogen fuel cells with a voltage step-down converter were considered.
Ivan V. Vasyukov   +4 more
doaj   +1 more source

A Study on the Relationship Between Contact Pressures in a Grade2 TDN–UHMWPE Hip Implant: Young’s Modulus and Poisson’s Ratio

open access: yesTribology in Industry, 2022
Statistical data show that over 90% hip implants have the acetabular cup made of ultra-high molecular weight polyethylene (UHMWPE), while the femoral head is made of stainless steel, CoCrMo alloy, titanium and ceramics.
Myron Chernets   +2 more
doaj   +1 more source

AN IMPROVED METHODOLOGY FOR MULTI-CRITERIA EVALUATIONS IN THE SHIPPING INDUSTRY

open access: yesBrodogradnja, 2016
This paper presents a reliable, easy and more objective approach for ranking and determining preference in a multi-criteria decision-making problem within the shipping industry.
Daniel Osezua Aikhuele   +1 more
doaj   +1 more source

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