Results 21 to 30 of about 24,799 (262)

In Situ Measurements for Plastic Zone Ahead of Crack Tip and Continuous Strain Variation under Cyclic Loading Using Digital Image Correlation Method

open access: yesMetals, 2020
Fatigue crack is one of the most common damage forms for aeronautical aluminum alloy. With crack propagation, the strain fields of the whole object surface and plastic zone (PZ) ahead of the crack tip are changing continuously.
Yan Zhao   +4 more
doaj   +1 more source

Graphene-Based Nanoscale Vacuum Channel Transistor

open access: yesNanoscale Research Letters, 2018
We report the fabrication and electrical performance of nanoscale vacuum channel transistor (NVCT) based on graphene. Ninety-nanometer-width vacuum nano-channel could be precisely fabricated with standard electron beam lithography process.
Ji Xu   +4 more
doaj   +1 more source

Calibration of a summer building simulation model based on monitoring of user behaviour

open access: yesActa Polytechnica CTU Proceedings, 2022
Occupant behaviour is a field, that has always been of great interest to researchers. It could significantly modify the operation of the building and the user’s energy needs, and it is also difficult to model it according to reality.
Dóra Szagri   +3 more
doaj   +1 more source

Design and development of a low-cost glazing measurement system

open access: yesMethodsX, 2020
Knowledge of the properties and performance level of a glazing or translucent component system is necessary for assessing the operational energy use of building or greenhouse structures and proposing potential strategies for saving energy.
Yanxiao Feng, Julian Wang
doaj   +1 more source

Design of a Verification Device of Motor Axle Wheel Load Scales Based on Pump-Controlled Hydraulic Cylinder

open access: yesSensors
Vehicle axle load scales are one of the most important devices for vehicle safety testing. To ensure the stability and reliability of test results, regular calibration of axle load scales is necessary.
Long Hao   +3 more
doaj   +1 more source

In-situ radon-in-water detection for high resolution submarine groundwater discharge assessment

open access: yesFrontiers in Marine Science, 2022
Submarine groundwater discharge (SGD), including both land-based fresh groundwater that enters the ocean from coastal aquifers as well as recirculated seawater that is continuously recharged and discharged on the seabed, has been considered as an ...
Shibin Zhao   +19 more
doaj   +1 more source

Cloud Measurement Techniques in Situ

open access: yes, 2003
The impact of clouds on weather and climate is determined by their microphysical properties (i.e., the size distribution, water content, light extinction coefficient, and shape). Understanding how these properties evolve requires detailed studies with in situ measurements using a suite of different sensors.
Baumgardner, D   +4 more
openaire   +1 more source

Holographic in situ stress measurements [PDF]

open access: yesGeophysical Journal International, 1986
A new instrument for measuring the in situ level of stress in boreholes has been developed. The instrument operates on the principle of locally relieving the stresses acting on a rock mass by drilling a small hole into the borehole surface and recording the resultant displacement field by holographic interferometry.
Bass, Jay D.   +2 more
openaire   +2 more sources

Anti-Interference Spectral Confocal Sensors Based on Line Spot

open access: yesSensors
Spectral confocal displacement sensors are non-contact optoelectronic sensors widely utilized for their high accuracy, speed, and ability to measure diverse surfaces.
Bo Wang   +4 more
doaj   +1 more source

Method for Non-Contact Measuring the Weight of Sturgeon in Intensive Aquaculture

open access: yesFishes
Weight information plays a pivotal role in sturgeon breeding and production management. However, manual measurement is time consuming and labor intensive due to the immense size of the sturgeon.
Junjie Hu   +5 more
doaj   +1 more source

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