Results 21 to 30 of about 4,719,547 (292)

Effect of Window Openable Area and Shading on Indoor Thermal Comfort and Energy Efficiency in Residential Buildings with Various Operating Modes

open access: yesAtmosphere, 2022
Solar heat gain and natural ventilation cooling of the indoor environment in buildings are highly influenced by the shading and openable area of windows.
Jiandong Ran   +6 more
doaj   +1 more source

Electronically Tunable Mixed-Mode Universal Filter Employing a Single Active Block and a Minimum Number of Passive Components

open access: yesApplied Sciences, 2020
A recently developed active building block, namely Voltage Differencing Extra X Current Conveyor (VD-EXCCII), is employed in the design of multi input single output (MISO), electronically tunable mixed-mode universal filter. The filter provides low pass (
Mohammad Faseehuddin   +3 more
doaj   +1 more source

Mixed-mode I/III fracture toughness of polymer matrix composites toughened with waste particles

open access: yesScience and Engineering of Composite Materials, 2018
Fracture toughness of particle-filled polymer composite beams with different particle content for varying of crack inclination angles was investigated in mode I and mode III loading conditions.
Alsaadi Mohamad   +2 more
doaj   +1 more source

Stifling silos: The need for a more holistic approach to mixed migration in a warming world [PDF]

open access: yes, 2021
A climate-changed world is one of mixed migration taking place across a spectrum of time, space, and agency, with both positive and negative outcomes.
Zickgraf, Caroline
core   +1 more source

The relationship between self-efficacy and problem-solving ability in biology learning at the senior high school

open access: yesBiosfer
This study aims to examine the relationship between self-efficacy and problem-solving ability in the topic of the human reproductive system at the senior high school level (SMA). The research employed a quantitative correlational design.
Dina Maulina   +6 more
doaj   +1 more source

Analysis of Mixed-Mode I/II/III Fracture Toughness Based on a Three-Point Bending Sandstone Specimen with an Inclined Crack

open access: yesApplied Sciences, 2021
The crack-propagation form may appear as an arbitrary mixed-mode fracture in an engineering structure due to an irregular internal crack. It is of great significance to research the mixed-mode fracture of materials with cracks.
Xin Pan   +4 more
doaj   +1 more source

A thermodynamically consistent derivation of a frictional-damage cohesive-zone model with different mode i and mode II fracture energies [PDF]

open access: yes, 2015
The present paper deals with the derivation of an interface model characterized by macroscopic fracture energies which are different in modes I and II, the macroscopic fracture energy being the total energy dissipated per unit of fracture area.
Serpieri, R   +9 more
core   +1 more source

Strong embedded discontinuities for simulating fracture in quasi-brittle materials [PDF]

open access: yes, 2011
In this paper embedded strong discontinuities are used to model discrete cracking in materials like concrete. In the approach followed a discontinuous displacement field is considered and the deformation is localized at a surface of zero width.

core   +6 more sources

Curve fitting of mixed-mode isopachics

open access: yes, 2009
Recent work has focused on exploiting the observation that the stress-sum contours (isopachics), obtained from TSA, in the vicinity of the tip take the form of a simple curve – the cardioid.
Barton, Janice .M.   +4 more
core   +1 more source

A Comprehensive Mixed-Mode Time-Domain Load- and Source-Pull Measurement System [PDF]

open access: yes, 2010
We present a novel test set devised for nonlinear balanced device characterization using load-pull techniques. The system is capable of measuring the voltage and current waveforms at the calibration reference planes while independently tuning the device ...
Ferrero, Andrea Pierenrico   +3 more
core   +1 more source

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