Results 41 to 50 of about 611,945 (318)

Modulation of thermoelectric performance of Cn-BTBT molecular junctions by engineering contact geometry

open access: yesResults in Physics, 2021
Organic molecular devices are promising candidates for thermoelectric applications. By using density functional theory combined with non-equilibrium Green’s function method, we have investigated the thermoelectric properties of a single-molecule junction,
Bei Zhang   +7 more
doaj   +1 more source

The Significance of Soil Micromorphology Research in Land Reclamation [PDF]

open access: yesE3S Web of Conferences, 2022
Soil micromorphology is an emerging branch of soil science that aims to study the formation and structure of soils at a microscopic level. The study of soil micromorphology can be used for the analysis of soil genesis and evolution, the development of ...
Cao Tingting, Wang Jian, Zhang Haiou
doaj   +1 more source

Multiple linear-crossing metamaterials for directional refraction

open access: yesFrontiers in Materials, 2022
Recently, linear-crossing metamaterials (LCMMs) in the hyperbolic topological transition of iso-frequency contour, have attracted people’s great attention.
Zhiwei Guo   +8 more
doaj   +1 more source

Presentism and the Micro-Structure of Time

open access: yesPhilosophy Kitchen, 2020
The standard account of the micro-structure of time is based on Cantor’s conception of continuity and thus views the time line as consisting of undenumerably many instants ordered by the B-theoretic earlier than relation. This may seem problematic for an A-theory of time such as presentism, according to which only what is present exists, for it seems ...
openaire   +2 more sources

Study on the Properties of Malan Loess in Lyuliang Area Under Freeze-thaw Cycles

open access: yesTaiyuan Ligong Daxue xuebao, 2021
Little research has been mode on freezing and thawing landslides in Shanxi, a typical seasonally frozen soil area, but landslides caused by freezing and thawing every year are frequent.
Lingling ZHANG   +3 more
doaj   +1 more source

Effects of Different Concentrations of Propylene Glycol Alginate on the Quality of Steamed Bread

open access: yesLiang you shipin ke-ji, 2022
Different concentrations of propylene glycol alginate (PGA) were added to flour to explore the effects of PGA on flour pasting properties, dough rheology, microstructure, texture and sensory quality of steamed bread.
GUO Zi-xuan   +4 more
doaj   +1 more source

Switchable Metasurface With Broadband and Highly Efficient Electromagnetic Functionality

open access: yesFrontiers in Physics, 2020
Electromagnetic metasurface is a kind of artificial electromagnetic structure, which can control the transmission, reflection, polarization and beam of electromagnetic wave within sub-wavelength thickness.
Zeyong Wei   +4 more
doaj   +1 more source

Diode-pumped, actively Q-switched Nd,La:CaNb2O6 self-Raman laser at 1,174 nm

open access: yesFrontiers in Physics, 2022
Diode end-pumped Nd,La:CaNb2O6 self-Raman laser with acousto-optic Q-switching was successfully demonstrated for the first Stokes wave generation at 1,174 nm. A 1.0 at.% Nd3+ and 1.0 at.% La3+-doped CaNb2O6 crystal in dimensions 3 × 3 × 14.3 mm3 was used
Youyi Zhuang   +6 more
doaj   +1 more source

Micro-crystalline structure of platinum [PDF]

open access: yesProceedings of the Royal Society of London, 1902
Abstract The crystalline structure of platinum does not appear to have been studied, although it forms an interesting subject for investigation. A small ingot of pure platinum was obtained for the experiments. A section was cut therefrom and machined to 5/16 inch square and 1/10 inch in thickness.
openaire   +1 more source

Parallel precision alignment of multiple micro components

open access: yes, 2022
S.1847-1853Micro components are available in a variety of shapes sizing from 1 mm down to 0.01 mm. Today, their mass production is quite common using state of the art production technology.
Brecher, Christian, Weinzierl, Martin
core   +1 more source

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