Results 61 to 70 of about 12,914 (293)

Oxygen chemisorption cryogenic refrigerator [PDF]

, 1987
The present invention relates to a chemisorption compressor cryogenic refrigerator which employs oxygen to provide cooling at 60 to 100 K. The invention includes dual vessels containing an oxygen absorbent material, alternately heated and cooled to ...
Jones, Jack A.
core   +1 more source

Mixing in convective thermal fluxes in unsteady nonhomogeneous flows generating complex three dimensional vorticity patterns [PDF]

, 2016
Diffusion and scaling of the velocity and vorticity in a thermoelectric driven heating and cooling experimental device is presented in order to map the different patterns and transitions between two and three dimensional convection in an enclosure with ...
Lopez Gonzalez-Nieto, Pilar, Redondo Apraiz, José Manuel, Sanchez, Jesus M., Tellez Alvarez, Jackson David   +3 more
core   +2 more sources

Precise Microstructural and Stoichiometric Control Advances Flexible Ag2Te Thin‐Film Thermoelectrics for Wearable Energy Harvesting

Advanced Materials, EarlyView.
Flexible Ag2Te thin films achieving a record‐high mobility of 4756 cm2 V−1 s−1 and a peak power factor of 18.5 µW cm−1 K−2 are developed via precise structural control. The assembled flexible devices demonstrate excellent mechanical stability and ultrafast voltage response, enabling precise thermal detection when integrated into a robotic gripper for ...
Yue‐Xing Chen, Xiao‐Lei Shi, Ning Chen, Dong Yang, Zhongzhao Zha, Hanwen Xu, Mohammad Nisar, Tianyi Cao, Boxuan Hu, Meng Li, Ziya Wang, Fu Li, Guangxing Liang, Jingting Luo, Zhuanghao Zheng, Zhi‐Gang Chen   +15 more
wiley   +1 more source

A 4-D dataset for validation of crystal growth in a complex three-phase material, ice cream [PDF]

, 2015
Four dimensional (4D, or 3D plus time) X-ray tomographic imaging of phase changes in materials is quickly becoming an accepted tool for quantifying the development of microstructures to both inform and validate models.
Clarke C, E Guo, J Bent, J Hazekamp, J Vila-Comamala, Kareh K M, M Kingsley, P D Lee, P Rockett, Pinzer B R, Rau C, S Karagadde, Van Dalen G   +12 more
core   +1 more source

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source

Portable Thermoelectric Cooler Box Performance with Variation of Input Power and Cooling Load

Aceh International Journal of Science and Technology, 2018
The thermoelectric module is a device that works by using the Peltier effect when electrical power supplied on it. In this study, the thermoelectric module is applied as thermoelectric cooler (TEC) using air cooling heat sink where cooling box capacity ...
Afdhal Kurniawan Mainil, Azridjal Aziz, M Akmal   +2 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Unjuk Kerja Kotak Pendingin Termoelektrik dengan Variasi Laju Aliran Massa Air Pendingin

Jurnal Teknik Mesin, 2018
This study was taken because some conventional refrigerators still contain refrigerant comprising CFC that can support the global warming. Moreover, the construction of the conventional refrigerators is still big and heavy so that the refrigerators are ...
Mirmanto Mirmanto, Rudy Sutanto, D.K. Putra   +2 more
doaj   +1 more source

Multispectral scanner optical system [PDF]

, 1980
An optical system for use in a multispectral scanner of the type used in video imaging devices is disclosed. Electromagnetic radiation reflected by a rotating scan mirror is focused by a concave primary telescope mirror and collimated by a second concave
Koch, N. G., Stokes, R. C.
core   +1 more source

Strong light illumination on gain-switched semiconductor lasers helps the eavesdropper in practical quantum key distribution systems

, 2018
The temperature of the semiconductor diode increases under strong light illumination whether thermoelectric cooler is installed or not, which changes the output wavelength of the laser (Lee M. S. et al., 2017). However, other characteristics also vary as
Fei, Yang-Yang, Gao, Ming, Ma, Zhi, Meng, Xiang-Dong, Wang, Hong, Yang, Yi   +5 more
core   +1 more source