نتایج جستجو برای: driving forces
تعداد نتایج: 165068 فیلتر نتایج به سال:
Extreme forest fires have been a historic concern in the forests of Canada, Russian Federation, and USA, are now an increasing threat boreal Europe, where recent fire events 2014 2018 drew attention to Sweden. Our study objective was understand vulnerability Swedish by spatially analyzing historical burned areas, link with weather, landscape, fire-related socioeconomic factors. We developed ext...
Background and Objective: Global macro trends on the one hand, and domestic trends and effective factors on the other, have put the future of the Iran's environment in a state of uncertainty with concern. In a complex and unpredictable environment, the use of scenario thinking (based on identifying and detecting future drivers and uncertainties) can provide tangible and comprehensible images of...
We review a recent theoretical development based on non-equilibrium Green’s function formalism to study heat transport in nanomechanical devices modeled by phononic systems of coupled quantum oscillators driven by ac forces and connected to phononic reservoirs. We present the relevant equations to calculate the heat currents flowing along different regions of the setup, as well as the power dev...
The objective of this descriptive, cross-sectional study was to analyze the driving and hindering forces for team work at a Material and Sterilization Center (MSC) of a teaching hospital, through an approximation of Kurt Lewin's Field Theory,in Goiânia, Goiás. Participants were 35 professionals, who answered a self-administered questionnaire based on the referred theory, which establishes that ...
We have investigated the influence of a driving force on the elastic coupling (Labusch parameter) of the field-cooled state of the flux line lattice (FLL) in 400 nm thick YBa2Cu3O7 superconducting films. We found that the FLL of a field-cooled state without driving forces is not in an equilibrium state. Results obtained for magnetic fields applied at 0◦ and 30◦ relative to CuO2 planes, show an ...
This paper reveals the relationship between the weighted Moore–Penrose generalized inverse and the force analysis of overconstrained parallel mechanisms (PMs), including redundantly actuated PMs and passive overconstrained PMs. The solution for the optimal distribution of the driving forces/torques of redundantly actuated PMs is derived in the form of a weighted Moore–Penrose inverse. Therefore...
Life is considered something different from non-living things, but no single driving force can account for all the different aspects of life, which consists of different levels of hierarchy, such as metabolism, cell physiology, multi-cellular development and organization, population dynamics, ecosystem, and evolution. Although free energy is evidently the driving force in biochemical reactions,...
For a crack in a structure, the crack driving force G is the reduction of the elastic energy in the structure, associated with the crack extending per unit area. In principle, G can be calculated by solving a boundary value problem. In practice, however, such a calculation is prohibitively difficult for integrated structures of complex architectures, diverse materials and small features. The ca...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید