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61.
Clara Sangrós Giménez Laura Helmers Carsten Schilde Alexander Diener Arno Kwade 《化学工程与技术》2020,43(5):819-829
All-solid-state batteries constitute a very promising energy storage device. Two very important properties of these battery cells are the ionic and the electrical conductivity, which describe the ion and the electron transport through the electrodes, respectively. In this work, a numerical method is presented to model the electrical conductivity, considering the outcome of discrete-element method simulations and the intrinsic conductivities of both the active material particles and the conductive additive particles. The results are calibrated and validated with the help of experimental data of real manufactured electrodes. The tortuosity, which strongly influences the ionic conductivity, is also presented for the analyzed electrodes, taking their microstructure into account. 相似文献
62.
Ileana de los A. Gremasqui Maria A. Giménez Manuel O. Lobo Norma C. Sammán 《International Journal of Food Science & Technology》2021,56(12):6507-6514
The objective was to study the nutritional and functional properties of hydrolysates from quinoa (Chenopodium quinoa) obtained by enzymatic hydrolysis of defatted quinoa flour (DQF). The commercial enzymes alcalase and flavourzyme were used to obtain the hydrolysates defatted quinoa flour hydrolysate with alcalase (DQFA) and defatted quinoa flour hydrolysate with flavourzyme (DQFF), respectively, after 3 h of digestion at 50°C and pH 8. The degree of hydrolysis (47.32%), yield (31.05%) and protein recovery (88.80%) values were higher in DQFA; however, its protein content (48.34%) was lower compared to that of DQFF (55.06%). Also, DQFA had a solubility greater than 57% over a wide pH range (2–10) and good foam stability (70–90%). On the other hand, DQFF presented adequate emulsifying activity (61.30 m2/g), emulsifying stability (158.62 min) and foaming capacity (131%). Due to the high content of macro- and micronutrients and adequate emulsifying and foaming properties, DQFA and DQFF could be used as ingredients in various processed food products and protein supplements. 相似文献
63.
Almudena Giménez Soraya Bordoy Auxiliadora Sánchez Miguel López-Zamora Josep M. Sopena Juan L. Luque 《Journal of Computer Assisted Learning》2021,37(2):510-520
Difficulties in implementing effective instruction for at-risk students arise from two challenges: the transfer of evidence-based knowledge and the lack of economic resources. Computer-assisted programmes offer a suitable solution, providing quality instruction using low-cost resources. Thirty-two first-grade students with early learning difficulties were identified and paired based on at least three of the pre-intervention reading measures (reading efficiency of monosyllabic and disyllabic items, words, pseudowords and text reading speed). Each pair was assigned to one of two different intervention programmes: a computer-assisted intervention programme (CAIP) focused on syllables or the programme provided by the Spanish State School Assistance Services (SSAS). Every week, the CAIP participants received in pairs four 15-min training sessions on syllable decoding plus one 30-min group comprehension session. The CAIP was delivered by trainee students. The SSAS programme typically consisted of a 1-hr individual or in small groups sessions per week delivered by trained practitioners. Both programmes were administered for 11 weeks. The CAIP intervention showed better results than the SSAS intervention for both decoding and comprehension, with moderate to large effect sizes. 相似文献
64.
Cano José-Carlos Cuenca Javier Giménez Domingo Saura-Sánchez Mariano Segado-Cabezos Pablo 《The Journal of supercomputing》2019,75(3):1368-1381
The Journal of Supercomputing - Multibody systems consist of a set of components connected through some joints, where the movement of the system is determined by those of its components. Their... 相似文献
65.
María S. Giménez Ana M. Ponce de Ascheri María E. Elorza de Orellano Liliana Oliveros Fanny Zirulnik de Hodara Mirta R. Bonomi Luis A. Giménez 《Lipids》1989,24(11):985-987
Male goats (“Criolla Argentina” breed), castrated at 45 days of age, showed altered lipid metabolism 180 days after castration
as compared to control goats. Subcutaneous, perirenal and omental adipose tissues of castrated goats showed increases in fatty
acid synthetase, glucose-6-phosphate dehydrogenase and NADP-isocitrate dehydrogenase activities. Castration increased the
amount of total lipids and triglycerides, but did not modify the amount of cholesterol, phospholipid and protein in the three
types of adipose tissue. The incorporation of [1-14C]acetate into fatty acids of subcutaneous and perirenal adipose tissue was increased in castrated goats in relation to noncastrated
goats. Our results suggest that removal of gonadal steroids increases significantly the rate of lipogenesis in adipose tissue
of male goats. 相似文献
66.
A. Mathai Y. Gim R. C. Black A. Amar F. C. Wellstood 《Journal of Superconductivity》1995,8(4):491-494
At present, the symmetry of the order parameter in the high temperature superconductor YBCO is quite controversial. Recent experiments using SQUIDs and Josephson junctions appear to support competing theories, with some experiments supporting a dx2–y2 pairing symmetry for the order parameter and others a s-wave pairing symmetry. We note that a number of factors such as trapped flux, magnetic field gradients and SQUID asymmetries could lead such measurements astray. We use a Scanning SQUID Microscope and a time-reversal invariance test to resolve these experimental problems. We find the order parameter in YBCO has a time-reversal invariant dx2–y2 symmetric component. We estimate the amplitude of anyimaginary s-wave symmetric component to be less than 4% and anyreal s-wave component to be less than 82%. 相似文献
67.
Near Room‐Temperature Memory Devices Based on Hybrid Spin‐Crossover@SiO2 Nanoparticles Coupled to Single‐Layer Graphene Nanoelectrodes 下载免费PDF全文
68.
The aim of this study was to determine whether or not testosterone regulates the lipid concentration in rat lung tissue. Rats
were either sham-operated controls, castrated, or castrated and injected with testosterone. Twenty-one days after castration,
we observed in relation to the control: (i) Total lipids, phospholipids, and total cholesterol increased, while triglycerides
decreased in whole lung. (ii) Phospholipid concentration increased in microsomes, lamellar bodies, and alveolar macrophages,
but it decreased in extracellular surfactant. (iii) On a percentage basis, the concentration of phosphatidylcholine increased
in microsomes, lamellar bodies, and alveolar macrophages, and it decreased in extracellular surfactant. (iv) Protein concentration
decreased in extracellular surfactant and increased in microsomes, lamellar bodies, and alveolar macrophages. (v) The incorporation
of [14C]glycerol into phospholipids of lung slices increased. (vi) The activity of CTP:phosphocholine cytidylyltransferase bound
to the microsomal fraction increased without any change in the activity of the soluble form of the enzyme in the lung. The
results obtained when testosterone was administered to castrated rats were similar to those obtained in the control in all
cases. These results suggest that the lipid concentration in the lung is regulated at least partly directly or indirectly
by androgens. 相似文献
69.
Boris X. Camiletti Claudia M. Asensio María de la Paz Giménez Pecci Enrique I. Lucini 《Journal of food science》2014,79(12):M2499-M2506
The objective in this study was to evaluate the antifungal activity of essential oils from native and commercial aromatic plants grown in Argentina against corn postharvest fungi and to link the essential oil bioactivity with lipid oxidation and morphological changes in fungus cell membrane. Essential oil (EO) of oregano variety Mendocino (OMen), Cordobes (OCor), and Compacto (OCom), mint variety Inglesa (Mi), and Pehaujo (Mp), Suico (Sui); rosemary (Ro), and Aguaribay (Ag) were tested in vitro against 4 corn fungi: A. flavus (CCC116–83 and BXC01), P. oxalicum (083296), and P. minioluteum (BXC03). The minimum fungicidal concentration (MFC) and the minimum inhibitory concentration (MIC) were determined. The chemical profiles of the EOs were analyzed by GC‐MS. Lipid oxidation in cell membrane of fungi was determined by hydroperoxides and related with essential oil antifungal activity. The major compounds were Thymol in OCor (18.66%), Omen (12.18%), and OCom (9.44%); menthol in Mi and Mp; verbenone in Sui; dehydroxy‐isocalamendiol in Ag; and eucaliptol in Ro. OCor, Omen, and OCom showed the best antifungal activity. No antifungal activity was observed in Ag and Ro EO. The hydroperoxide value depended on the fungi (P < 0.001) and the antimicrobial agent (P < 0.001).Membrane lipids were oxidized by Sui EO in A. flavus BXC01 and A. flavus CCC116–83 (0.021 and 0.027 meqO2/kg, respectively). The results suggest that the EOs of OCor, OMen, OCom, Mi, Mp, and Sui grown in Argentina can be used as natural alternatives to control fungi that produce mycotoxin in maize. 相似文献
70.