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1.
Pula G Perera S Prokopi M Sidibe A Boulanger CM Mayr M 《Proteomics. Clinical applications》2008,2(6):882-891
The release of proteins and membrane vesicles in the bloodstream regulates diverse vascular processes, both physiological, such as angiogenesis and haemostasis, and pathological, such as atherosclerosis and atherothrombosis. Proteomics, beside its canonical application for the expression profiling in cells and organs, can be applied to the study of secreted proteins and microvesicles, which play a significant role in the homeostasis of the vasculature, and the development of the atherosclerotic disease. 相似文献
2.
Anissa Eddhahak Ouni Anne Dony Johan Colin 《International Journal of Pavement Engineering》2014,15(1):58-65
This paper deals with a stochastic approach to evaluate the rut depth of hot and warm bituminous mixtures. First, the rutting performance of both mixtures using the French rutting tester device was evaluated. Given the random uncertainties derived from the numerous experimental measurements of the rut depth, statistical information was collected. Accordingly, the entropy maximum principle was used here to define adequate probability density function of the rut. Confidence regions with a high probability of 99% were determined for the estimation of the rut depth. In addition, comparison of mechanical and rheological results is performed with aged bitumen recovered from reclaimed asphalt and virgin bitumen to analyse the effect of ageing on bitumen viscoelastic properties. The experimental characterisation of the different binders based on rheological and conventional tests showed stiffening and hardening effects due to bitumen ageing. 相似文献
3.
Experimental study of the miscibility of ABS/PC polymer blends and investigation of the processing effect 下载免费PDF全文
In the challenging prospect of developing new materials by mixing different polymers to reach a synergetic performance, the present research focuses on the study of the miscibility of two polymers: The acrylonitrile butadiene styrene (ABS) composed of a dispersed elastomeric (polybutadiene rubber) polymer embedded in a SAN thermoplastic matrix, and the polycarbonate (PC). It shall be noted that obtaining miscible polymer blends is often a difficult task because of the large size of their molecular chains and the high interfacial tension between the polymer phases. Until now, the most numerous researches developed in this field involve polymer blends obtained by compatibilization techniques in order to improve the interfacial adhesion between initial polymers. The aim of this work is to study the miscibility between ABS and PC. First, two different methods were used to mix the polymers: the twin‐screw extrusion and the dissolution in a common solvent tetrahydrofuran (THF). Then, physicochemical, microscopic observation and rheological characterization were performed on samples of mixtures obtained by both extrusion processing and dissolution method. The measurement of glassy transition temperature (Tg) by differential scanning calorimetry measurements (DSC) and dynamical mechanical thermal analysis (DMTA) have shown a partial miscibility between the two polymers. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 44975. 相似文献
4.
Determination of principal component analysis models for sensor fault detection and isolation 总被引:1,自引:0,他引:1
Anissa Benaicha Gilles Mourot Kamel Benothman José Ragot 《International Journal of Control, Automation and Systems》2013,11(2):296-305
In this paper, a new method for determining the Principal Component Analysis (PCA) model structure for system diagnosis is proposed. This method, based on the variables reconstruction principle, determines the PCA model optimizing detection and isolation of single or multiple faults affecting redundant or non redundant variables of a system. This new method has been validated by a simulation example. 相似文献
5.
Anissa Acidi Muhammad Hasib-ur-Rahman Faiçal Larachi Azzedine Abbaci 《Korean Journal of Chemical Engineering》2014,31(6):1043-1048
We present the viability of using thermally stable, practically non-volatile ionic liquids as corrosion inhibitors in aqueous monoethanolamine systems. Carbon steel 1020, which is widely used as a construction material in CO2 capture plants, has been taken as a test material. Corrosion inhibition capabilities of typical room-temperature ionic liquids constituting imidazolium cation in concentration range ≤3% in CO2 capture applications were investigated. Electrochemical corrosion experiments using the potentiodynamic polarization technique for measuring corrosion current were carried out. Subsequent calculation of corrosion rate via Tafel fit was performed. The experimental findings suggest that the corrosion rate is significantly dependent on the process parameters, such as the CO2 loading and the presence of oxygen. In addition, the value of the corrosion rate is sensitive to the type of ionic liquid added. Moreover, the results show that ionic liquids possess the ability of suppressing severe operational problems of corrosion in typical CO2 capture plants to a reasonable extent (≥50%). 相似文献
6.
Djamila Boufades Souad Hammadou Née Mesdour Anissa Moussiden Hafsa Benmebrouka Claire Hérold Omar Kaddour 《Fullerenes, Nanotubes and Carbon Nanostructures》2020,28(9):716-723
AbstractIn the current work, carbon nanospheres (CNSs) were prepared via pyrolysis of gas condensate in N2 at 1273?K and atmospheric pressure for 2?h using ferric chloride as a catalyst precursor. X-ray diffraction, energy dispersive X-ray spectrometry (EDX) in scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectrometry (Raman), Fourier transform infrared spectroscopy, and thermal gravimetric analysis (TGA) are employed for the structural and morphological characterization of the nanomaterials formed. The conductivity of these films was measured using the four probe method. As results, SEM-EDX and TEM analysis reveal spherical shaped particles, with diameter varying between 100 and 200 nm and graphene interlayer distance of 0.339 nm. The very low ID/IG ratio obtained reveals a relatively low amount of disorder in the nanostructures and TGA analysis implies that thermal stability was achieved after 470?°C. Our work provides a simple synthetic strategy in one-step sample preparation of CNSs, which can be used for furfur applications such as high-performance supercapacitors or adsorbents. 相似文献
7.
Mohamed Makni Anissa Haddar Amor Ben Fraj Najiba Zeghal 《International Journal of Food Properties》2013,16(1):194-204
Commercial olive and soybean oils have been analyzed periodically in order to evaluate the influence of storage conditions on quality. The following parameters were determined every 10 days of storage: peroxide, saponification and acid values, absorption coefficients K270 and K232, phenols, chlorophylls and carotenoids contents, DPPH scavenging ability, and total antioxidant activity. Edible oils were exposed to daylight and stored at room temperature in different containers with the same surface area of exposure to air either in clear glass or opaque glass bottles. Changes in oils properties were also examined after the addition of Vit-E as an antioxidant in oil samples. The results showed a gradual loss of quality during storage, especially in clear glass bottles. The addition of the antioxidant, however, significantly reduced the deterioration and oxidation rate in the oil. The best containers for commercial packing of oil were opaque glass bottles containing antioxidant products. 相似文献
8.
Hafsa Amal Sghaier Anissa Malek Jihene Machhout Mohsen 《Multimedia Tools and Applications》2021,80(13):19769-19801
Multimedia Tools and Applications - Currently, embedded systems can be found everywhere in quotidian life. In the development of embedded systems, information security is one of the important... 相似文献
9.
Ichrak Charfi Feriel Rezouga Anissa Makhlouf Salwa Bornaz 《International Journal of Dairy Technology》2018,71(2):439-445
To better understand the fermentation kinetic of Arabian donkey milk, its physicochemical properties, conductivity and viscosity were assessed during acidification, and compared to that of the bovine milk. Donkey milk showed a shorter latency phase and slightly lower acidification rate than bovine milk. Measurement of electric conductivity during acidification showed that maximum demineralisation of casein micelles occurred at around pHI 5.44 for donkey milk and pHI 5.16 for bovine milk. Donkey milk was also found to be less viscous. The technological characteristics of donkey milk were different from those of bovine milk due to intrinsic physicochemical properties of both milks. 相似文献
10.
Anissa Haim Dr. Saskia Neubacher Prof. Dr. Tom N. Grossmann 《Chembiochem : a European journal of chemical biology》2021,22(17):2672-2679
Proteins possess unique molecular recognition capabilities and enzymatic activities, features that are usually tied to a particular tertiary structure. To make use of proteins for biotechnological and biomedical purposes, it is often required to enforce their tertiary structure in order to ensure sufficient stability under the conditions inherent to the application of interest. The introduction of intramolecular crosslinks has proven efficient in stabilizing native protein folds. Herein, we give an overview of methods that allow the macrocyclization of expressed proteins, discussing involved reaction mechanisms and structural implications. 相似文献