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71.
The glass forming regions and some properties of the CdBr2-PbBr2-KI (10 to 50 mol % CdBr2, 10 to 70 mol % PbBr2, 20 to 40 mol % KI), CdCl2-PbBr2-KI (10 to 50 mol % CdCl2, 10 to 80 mol % PbBr2, 10 to 70 mol % KI) and CdCl2-PbCl2-KI (20 to 50 mol % CdCl2, 10 to 70 mol % PbCl2, 5 to 60 mol % KI) ternary systems were studied. Glasses exhibit remarkably high transmittance (up to 80%) in the visible and IR region (down to 250 cm–1 for CdBr2-PbBr2-KI, 300 cm–1 for CdCl2-PbBr2-KI and 400 cm–1 for CdCl2-PbCl2-KI for 1 mm thick plates). The values of glass transition temperature lie between 343 to 353 K and crystallization temperature between 343 to 403 K. 相似文献
72.
Nora Kryževičūtė Isabel Jaime Ana M. Diez Jordi Rovira Petras Rimantas Venskutonis 《International Journal of Food Science & Technology》2017,52(8):1852-1861
Raspberry pomace extracts isolated with supercritical carbon dioxide (SCE) and pressurised ethanol/water (ETE) were tested in beef burgers. Only ETE additives effectively inhibited lipid oxidation and the growth of microorganisms, as it was observed by measuring the changes of thiobarbituric acid reactive substances, bacterial counts and the content of O2 and CO2 during storage in the modified atmosphere package. ETE additives also demonstrated some meat colour preservation effects, which were assessed by the intensity of hamburger colour and metmyoglobin concentration. However, ETE additives did not alter burger's taste at the applied concentrations (up to 1%). It may be concluded that the most effective extracts possessing strong antioxidant and antimicrobial activity may be isolated from raspberry pomace by the pressurised liquid extraction with a hydroethanolic solvent; such extracts may be considered as promising additives in meat products for improving their stability and enriching with beneficial to health phytochemicals. 相似文献
73.
74.
Qiuping Wang Bojan Šarkanj Jasna Jurasovic Yusuf Chisti Michael Sulyok Jiashun Gong Sarote Sirisansaneeyakul Draženka Komes 《International Journal of Food Science & Technology》2019,54(5):1541-1549
Theabrownins (TB) are polymeric phenolic compounds associated with the multiple bioactivities of Pu-erh tea, a post-fermented Chinese dark tea. High-TB instant Pu-erh tea was produced via a novel submerged fermentation (SF) using Aspergillus tubingensis and compared with samples produced commercially via the conventional solid-state fermentation (SSF). Viable microorganisms and microbial toxins, especially aflatoxins B1, G1, B2, G2, cyclopiazonic acid, fumonisins B1, B2, B3 and ochratoxin A, were below the detection limit in all samples. Fewer microbial metabolites were found in SF instant tea compared with the SSF teas. Based on an adult consuming 1 g of instant Pu-erh tea daily, the dietary intake of investigated elements was below the safe limits recommended by various authorities. Tasters viewed the instant tea infusions as very mild, smooth, mellow and full. This suggested that submerged fermentation using A. tubingensis offers a speedy and safe alternative to commercial production of instant Pu-erh tea. 相似文献
75.
76.
Gengler RY Toma LM Pardo E Lloret F Ke X Van Tendeloo G Gournis D Rudolf P 《Small (Weinheim an der Bergstrasse, Germany)》2012,8(16):2532-2540
Mixed-valence polycyanides (Prussian Blue analogues) possess a rich palette of properties spanning from room-temperature ferromagnetism to zero thermal expansion, which can be tuned by chemical modifications or the application of external stimuli (temperature, pressure, light irradiation). While molecule-based materials can combine physical and chemical properties associated with molecular-scale building blocks, their successful integration into real devices depends primarily on higher-order properties such as crystal size, shape, morphology, and organization. Herein a study of a new reduced-dimensionality system based on Prussian Blue analogues (PBAs) is presented. The system is built up by means of a modified Langmuir-Blodgett technique, where the PBA is synthesized from precursors in a self-limited reaction on a clay mineral surface. The focus of this work is understanding the magnetic properties of the PBAs in different periodic, low-dimensional arrangements, and the influence of the "on surface" synthesis on the final properties and dimensionality of the system. 相似文献
77.
Influence of loading rate on concrete cone failure 总被引:2,自引:2,他引:2
Three different effects control the influence of the loading rate on structural response: creep of bulk material, rate dependency
of growing microcracks and structural inertia. The first effect is important only at extremely slow loading rates whereas
the second and third effects dominate at higher loading rates. In the present paper, a rate sensitive model, which is based
on the energy activation theory of bond rupture, and its implementation into the microplane model for concrete are discussed.
It is first demonstrated that the model realistically predicts the influence of the loading rate on the uniaxial compressive
behaviour of concrete. The rate sensitive microplane model is then applied in a 3D finite element analysis of the pull-out
of headed stud anchors from a concrete block. In the study, the influence of the loading rate on the pull-out capacity and
on the size effect is investigated. To investigate the importance of the rate of the growing microcracks and the influence
of structural inertia, static and dynamic analyses were carried out. The results show that with an increase of the loading
rate the pull-out resistance increases. For moderate loading rates, the rate of the microcrack growth controls the structural
response and the results of static and dynamic analysis are similar. For very higher loading rates, however, the structural
inertia dominates. The influence of structural inertia increases with the increase of the embedment depth. It is shown that
for moderately high-loading rates the size effect becomes stronger when the loading rate increases. However, for very high-loading
rate the size effect on the nominal pull-out strength vanishes and the nominal resistance increases with an increase of the
embedment depth. This is due to the effect of structural inertia. 相似文献
78.
Binbin Chen Nicolas Gauquelin Daen Jannis Daniel M. Cunha Ufuk Halisdemir Cinthia Piamonteze Jin Hong Lee Jamal Belhadi Felix Eltes Stefan Abel Zoran Jovanović Matjaž Spreitzer Jean Fompeyrine Johan Verbeeck Manuel Bibes Mark Huijben Guus Rijnders Gertjan Koster 《Advanced materials (Deerfield Beach, Fla.)》2020,32(50):2004995
79.
Lodi A. Cappelli A. Bocchi M. Mucci C. Innocenti M. De Bartolomeis C. Ciccarelli L. Giansante R. Deledda A. Campi F. Toma M. Guerrieri R. 《Solid-State Circuits, IEEE Journal of》2006,41(1):85-96
In the nanometer era, the increase in nonrecurring engineering costs is a challenge for SoCs that can be faced through a standardization process. Hardware specialization of a standard platform to a given application can be achieved by exploiting reconfigurable technology. This paper presents a XiSystem SoC, which integrates two different field-programmable devices to provide application-specific computing blocks and IOs. A XiRisc reconfigurable processor is exploited to achieve more than one order of magnitude speed-up and energy consumption reduction vis-a/spl grave/-vis a DSP-like processor, while an eFPGA is integrated in the system in order to make it flexible enough to support various IO ports and protocols. The reconfigurable IO device is also utilized for pre/post data processing and implementation of some standard computational blocks. 相似文献
80.
Živec Tina Anžur Andreja Verbovšek Timotej 《Bulletin of Engineering Geology and the Environment》2019,78(3):1631-1643
Bulletin of Engineering Geology and the Environment - Terrestrial laser scanning (TLS) was performed in tectonically undisturbed flysch in the Elerji quarry (south-west Slovenia), which represents... 相似文献