Results 1 to 10 of about 15,716,870 (262)

A Method to Compensate for the Errors Caused by Temperature in Structured-Light 3D Cameras

Sensors, 2021
Although low cost red-green-blue-depth (RGB-D) cameras are factory calibrated, to meet the accuracy requirements needed in many industrial applications proper calibration strategies have to be applied.
Oriol Vila, Imma Boada, David Raba, Esteve Farres   +3 more
doaj   +1 more source

Functional Properties and Safety Considerations of Zinc Oxide Nanoparticles Under Varying Conditions

Nanomaterials
Zinc oxide nanoparticles (ZnO NPs) exhibit diverse morphologies and sizes, influencing their functional properties. However, the relationship between their morphology and behavior under varying conditions remains poorly understood.
Ana Rita Mendes, Carlos M. Granadeiro, Andreia Leite, Otmar Geiss, Ivana Bianchi, Jessica Ponti, Dora Mehn, Eulália Pereira, Paula Teixeira, Fátima Poças   +9 more
doaj   +1 more source

Theory of Mitigate Temperature Effect on the Equilibrium Point in Vertical Cavity Surface Emitting Lasers [PDF]

Kirkuk Journal of Science, 2019
This paper presents a way to mitigate the influence of temperature effects on the equilibrium point (Q-point) of vertical cavity surface emitting lasers (VCSELs) by investigating the effect of laser injection current (Iinj) and dc-bias level (Ibias ...
Hisham Hisham
doaj   +1 more source

Selective Esterification of Phosphonic Acids

Molecules, 2021
Here, we report straightforward and selective synthetic procedures for mono- and diesterification of phosphonic acids. A series of alkoxy group donors were studied and triethyl orthoacetate was found to be the best reagent as well as a solvent for the ...
Damian Trzepizur, Anna Brodzka, Dominik Koszelewski, Ryszard Ostaszewski   +3 more
doaj   +1 more source

Mitigating Temperature Effects in Curved Continuous Steel Box Girders: A Parametric Thermodynamic Analysis and Design Recommendations

Buildings
Curved continuous steel box girders are extensively utilized in bridge construction due to their efficiency and environmental benefits. However, in regions with significant temperature fluctuations, temperature effects can result in cumulative ...
Shichao Wang, Gang Zhang, Haoting Liu, Boxing Zhang, Xu Hou, Zhuoya Yuan   +5 more
doaj   +1 more source

Study on the Effect of Temperature on the Alignment of a Long-Span Steel–Concrete Composite Beam Track Cable-Stayed Bridge

Applied Sciences
In order to study the effect of temperature on the alignment of a long-span special track bridge, this paper provides a theoretical basis and technical support for bridge design, construction and later operation.
Xiaogang Li, Xiangsheng Huang, Peng Ding, Xiaohu Chen, Qiansong Wang, Sihan Cen   +5 more
doaj   +1 more source

Nanocharacterization of Dental Materials by Atomic Force Microscopy and Their Thermal Degradation Evaluation

Materials Proceedings, 2021
Restorative dental materials must be produced with special characteristics because they are operating in a medium environment with different humidity and temperature.
Marius Pustan, Corina Birleanu, Sanda Mirela Pop   +2 more
doaj   +1 more source

Size and Temperature Effects on Band Gap Analysis of a Defective Phononic Crystal Beam

Crystals
In this paper, a new defective phononic crystal (PC) microbeam model in a thermal environment is developed with the application of modified couple stress theory (MCST).
Bin Yao, Shaopeng Wang, Jun Hong, Shuitao Gu   +3 more
doaj   +1 more source

Temperature Effects on the Natural Frequencies of Composite Girders

Applied Sciences
Composite bridges are typically exposed to temperature variations due to heat radiation, conduction, and convection. Temperature affects the modal parameters of bridges, hindering the application of damage detection methods based on the dynamic ...
Arjun Poudel, Seungwon Kim, Byoung Hooi Cho, Janghwan Kim   +3 more
doaj   +1 more source

Automated Modal Analysis for Tracking Structural Change during Construction and Operation Phases

Sensors, 2019
The automated modal analysis (AMA) technique has attracted significant interest over the last few years, because it can track variations in modal parameters and has the potential to detect structural changes.
Jun Teng, De-Hui Tang, Xiao Zhang, Wei-Hua Hu, Samir Said, Rolf. G. Rohrmann   +5 more
doaj   +1 more source