Results 21 to 30 of about 11,718,938 (295)

Single-molecule nano-optics at low temperature [PDF]

open access: yes, 2006
The work presented in this thesis involves experiments on single molecules at low temperature. At low temperature, many disturbing temperature activated processes are frozen out, resulting in extremely sharp zero-phonon lines in the fluorescence ex ...
Butter, Jacqueline Yvonne Paula
core   +1 more source

Effect of Ultra-high Pressure Curing on the Quality of Roasted Pork

open access: yesShipin gongye ke-ji, 2022
In order to study the effect of ultra-high pressure treatment on the curing of roast pork and optimize its process, streaky pork was used as raw material in this study.
Lin WANG   +3 more
doaj   +1 more source

Experimental study on uniaxial compressive strength of ultra-low temperature frozen clay

open access: yesYantu gongcheng xuebao, 2021
Underground transportation, coal mining and other projects often encounter the construction problems of sandy soil crisscross and extremely rich groundwater in soft soil strata.
WANG En-liang , REN Zhi-feng , HAN Hong-wei , TIAN Yu , HU Sheng-bo , LIU Xing-chao
doaj   +1 more source

Vitrification Solutions for Plant Cryopreservation: Modification and Properties

open access: yesPlants, 2021
Many plants cannot vitrify themselves because they lack glassy state-inducing substances and/or have high water content. Therefore, cryoprotectants are used to induce vitrification.
Jiri Zamecnik   +2 more
doaj   +1 more source

Ultra-Dense Nano- and Molecular-Electronic Circuits [PDF]

open access: yes, 2007
This thesis describes research towards the realization of large-scale, ultra-dense nanowire-based circuits. The primary means for the construction of such circuits is the superlattice nanowire pattern transfer (SNAP) technique.
Green, Jonathan Earl
core   +1 more source

Room-temperature-densified H3BO3 microwave dielectric ceramics with ultra-low permittivity and ultra-high Qf value

open access: yesJournal of Materiomics, 2020
With the rapid development of mobile communication technology towards 5G and 6G, the microwave dielectric materials with ultra-low permittivity and ultra-high Qf value are urgently demanded.
Wen Bin Hong   +5 more
doaj   +1 more source

Thermometry at Ultra-Low Temperatures [PDF]

open access: yesJapanese Journal of Applied Physics, 1987
A new millikelvin temperature scale is presented which is based in part on the constraint that the normal-phase specific heat of liquid 3He be linear in temperature with a proportionality constant taken from higher-temperature specific heat measurements.
openaire   +1 more source

Study on the Performance of a New Ultra-Low Temperature Air Source Heat Pump (ASHP) Unit in Cold Regions

open access: yesBuildings, 2023
Low air temperature and frosting have been reported as the critical factors that greatly attenuate the efficiency and performance of the ASHP in cold regions.
Yanqiang Di   +5 more
doaj   +1 more source

Ultra-Low-Temperature Refrigeration Systems: A Review and Performance Comparison of Refrigerants and Configurations

open access: yesEnergies, 2023
During the last decade, many industrial and medical applications have shown a requirement for low-temperature-cooling usage (from −40 to −80 °C), which cannot be efficiently obtained via the conventional refrigeration systems usually employed for medium ...
Muhammad Zahid Saeed   +5 more
doaj   +1 more source

Ultra-low temperature grinding process and surface integrity of SiCp/Al material

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesAs a new-generation high-performance structural material, silicon carbide particle-reinforced aluminum matrix composites (SiCp/Al) exhibit outstanding specific strength, wear resistance, and thermal stability, making them highly valuable in ...
Weicheng GUO   +3 more
doaj   +3 more sources

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