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排序方式: 共有338条查询结果,搜索用时 15 毫秒
1.
Brahim Bchir Mohamed Ali Bouaziz Christophe Blecker Hamadi Attia 《Journal of texture studies》2020,51(3):475-487
This study examines the effects of incorporating fresh, frozen, osmodehydrated, and dried pomegranate seeds, at different concentrations (5, 10, and 20%) on the physicochemical, antioxidant, textural, and sensory properties of yoghurt. Antioxidant activity, pH, acidity, syneresis, and color of yoghurt were also evaluated during the storage (28 days) at 4°C. The principal component analysis (PCA) was performed to assess the correlations between different yoghurt formulation and their sensory attributes. Data showed that the addition of pomegranate seeds reduced pH and modified the chromatics coordinate (L*, a*, b*, C*, h°) and firmness of the yoghurt samples. In addition, acidity, °Brix, and syneresis increased compared to the control. Thanks to their high anthocyanin content, pomegranate seeds considerably improved the antioxidant activity essentially for yoghurt enriched with frozen seeds. In addition, the supplementation of 20% of frozen seeds into yoghurt was the most appreciated by panelists and improved the sensory properties in comparison to other formulation. According to PCA, taste and appearance were the main criteria for the overall acceptability of yoghurt. After 28 days of storage, the reddish color was reinforced; however, the antioxidant activity of yoghurts was reduced. Overall, it can be concluded that pomegranate seeds can be used as a natural ingredient to develop a novel yoghurt with high nutritional properties. 相似文献
2.
Brahim Ben Kabbour Lahcen Zouhri Jacky Mania Jean-Pierre Colbeaux 《Bulletin of Engineering Geology and the Environment》2006,65(4):463-470
In this study, the DASTI method was used to evaluate vulnerability to groundwater pollution in the vicinity of Rabat, western
Morocco. The model is based on the characterization of five intrinsic parameters: unsaturated zone thickness, saturated zone
thickness and lithology, soil texture, topography and hydraulic gradient. A system of classes of the hydrogeological characteristics
was applied to evaluate relative vulnerability to groundwater contamination and a susceptibility map was prepared based on
land use and the vulnerability index map. The study showed the DASTI method (applied using IDRISI software) can serve as a
tool to evaluate vulnerability to pollution and thus facilitate programs to protect groundwater resources.
An erratum to this article can be found at 相似文献
3.
Medjahed Sidali Kheloufi Abdelkrim Bobocioiu Ema Kefaifi Aissa Kerkar Fouad Lebbou Kheirreddine 《SILICON》2022,14(1):87-97
Silicon - In this work the reverse flotation as beneficiation process for high-purity silica valorization from Draissa quartz deposits (Algeria) is studied as a potential raw material for... 相似文献
4.
Farid Touati Adel Ben Mnaouer Ochirkhand Erdene‐Ochir Waiser Mehmood Ammad Hassan Brahim Gaabab 《Wireless Communications and Mobile Computing》2016,16(10):1271-1281
Technology has revolutionized medical practices by enabling more convenient and non‐intrusive monitoring of patient's health, leading to next generation ubiquitous healthcare (u‐healthcare). The exploitation of the Internet protocol version 6 addressing space along with the miniaturization of electronic devices has fostered providing interoperability and connectivity of wearable sensor devices in wireless body area networks to the Internet of Things. In this paper, we propose to integrate the IPv6 over low power wireless personal area network (6LoWPAN) to the u‐healthcare monitoring system architecture. The main objective is to study the feasibility of the 6LoWPAN‐enabled platform in real‐world scenarios dealing with medical data. The performance evaluation of this platform is carried out initially through simulations using OMNet++ and then supported by an experimental study using sensor motes and a customized micro‐computing unit. Performance metrics such as throughput, end‐to‐end delay, packet error rate, and energy consumption are investigated under acute health conditions, where patient's health information has to be sent continuously and at maximum rate to the care provider. The obtained results show that the proposed 6LoWPAN solution fulfills the main quality of service requirements of u‐healthcare applications. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
5.
Antiferroelectric Thin Films: Giant Negative Electrocaloric Effect in Antiferroelectric La‐Doped Pb(ZrTi)O3 Thin Films Near Room Temperature (Adv. Mater. 20/2015) 下载免费PDF全文
6.
Uncertainty analysis of hydrological models often requires a large number of model runs, which can be time consuming and computationally intensive. In order to reduce the number of runs required for uncertainty prediction, Bayesian networks (BNs) are used to graphically represent conditional probability dependence between the set of variables characterizing a flood event. Bayesian networks (BNs) are relevant due to their capacity to handle uncertainty, combine statistical data and expertise and introduce evidences in real‐time flood forecasting. In the present study, a runoff–runoff model is considered. The discharge at a gauging station located is estimated at the outlet of a basin catchment based on discharge measurements at the gauging stations upstream. The BN model shows good performances in estimating the discharges at the basin outlet. Another application of the BN model is to be used as a reverse method. Knowing discharges values at the outlet of the basin, we can propagate back these values through the model to estimate discharges at upstream stations. This turns out to be a practical method to fill the missing data in streamflow records which are critical to the sustainable management of water and the development of hydrological models. 相似文献
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Brahim Wael Betrouni Nacim Mestiri Makram Hamrouni Kamel 《Multimedia Tools and Applications》2019,78(10):13033-13046
Multimedia Tools and Applications - The involvement of medical imaging in medical procedures plays an important role in the diagnosis and planning of a therapeutic treatment. Computerized... 相似文献
10.