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排序方式: 共有67条查询结果,搜索用时 15 毫秒
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Meraj Talha Rauf Hafiz Tayyab Zahoor Saliha Hassan Arslan Lali M. IkramUllah Ali Liaqat Bukhari Syed Ahmad Chan Shoaib Umar 《Neural computing & applications》2021,33(17):10737-10750
Neural Computing and Applications - Lung cancer is a deadly disease if not diagnosed in its early stages. However, early detection of lung cancer is a challenging task due to the shape and size of... 相似文献
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Amar Si Ammour Said Djennoune Woihida Aggoune Maamar Bettayeb 《Asian journal of control》2015,17(5):1946-1954
This paper describes a variable structure control for fractional‐order systems with delay in both the input and state variables. The proposed method includes a fractional‐order state predictor to eliminate the input delay. The resulting state‐delay system is controlled through a sliding mode approach where the controller uses a sliding surface defined by fractional order integral. Then, the proposed control law ensures that the state trajectories reach the sliding surface in finite time. Based on recent results of Lyapunov stability theory for fractional‐order systems, the stability of the closed loop is studied. Finally, an illustrative example is given to show the interest of the proposed approach. 相似文献
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In this paper, we present a concern-based technique for software architecture modelling. We use the new UML 2 Package Merge relationship as a technique for the separation of concerns. We present the advantages of using the UML Package Merge relationship for software architecture modelling, and we propose a set of extensions for its limitations. 相似文献
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Saliha Alehyen Fatima Bensajjay Mohammed El Achouri Lourdes Pérez Aurora Pinazo María Rosa Infante 《Journal of surfactants and detergents》2010,13(3):339-348
A new oligomeric surfactant: N,N,N′,N″,N″- pentamethyl diethyleneamine—N,N″-di-[tetradecylammonium bromide] referred to as 14-2-N(CH3)-2-14 was synthesized, purified and characterized by Elemental Analysis, 1H and 13C NMR and Electrospray. The micellar properties of this compound were determined by electrical conductivity and surface tension
methods. Optical microscopy was also employed to study the behavior of anhydrous surfactant and the binary water/surfactant
system as a function of temperature. The critical micellar concentration (cmc), degree of counterion binding and thermodynamic
parameters of micellization (standard molar Gibbs energy, enthalpy and entropy of micellization) were determined by electrical
conductivity measurements in the temperature range [24–54 °C]. Surface tension measurements also provide information about
the dependence of the surface tension at the cmc (γcmc), pC20 (negative logarithm of the surfactant’s molar concentration C20, required to reduce the surface tension by 20 mN/m, the surface excess (Γmax) at air/solution interface, the minimum area per surfactant molecule at the air/solution interface (Amin), surface pressure
at the cmc (Пcmc), critical packing parameter(CPP) and the standard free energies of micellization (
\Updelta Gm0\Updelta G_{m}^{0}) and of adsorption (
\Updelta G\textads0 \Updelta G_{\text{ads}}^{0} ). 相似文献
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Saliha Erenturk M. Sahin Gulaboglu Selahattin Gultekin 《Food and Bioproducts Processing》2010,88(2-3):99-104
Average effective moisture diffusivities for both the whole- and cut-rosehips were obtained during convective drying. The effects of process variables such as air temperature, air velocity and air absolute humidity on effective moisture diffusivity were studied. The average effective moisture diffusivity in rosehip ranged between 1.45 × 10?10 and 10.3 × 10?10 m2/s for whole-rosehip and between 1.44 × 10?9 and 5.13 × 10?9 m2/s for cut-rosehip at the temperatures studied. Activation energies for convective drying were found to be 62 kJ/mol for whole-rosehips and 58 kJ/mol for cut-rosehips. 相似文献
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Keltouma Nouri Mohamed Feham Saliha Dali 《Journal of Infrared, Millimeter and Terahertz Waves》2005,26(12):1727-1739
The integral equations technique based on a three dimensional finite element method is applied as a quick and accurate analysis tool for the design of microwave passband filters. A three resonator H-plane bandpass filters with the various shapes of cavities and the irises are analyzed with this method in a single step and for only one mode, take into account all the electromagnetic effects. Consequently, it consumes less memory and CPU time.We propose also to study the same filters filled by homogeneous high dielectric material (ετ = 9.6) for Both resonator and coupling section.All these numerical results have been validated through a comparison with the results available in the scientific literature. 相似文献
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Neural Computing and Applications - This article presents a computer vision system for real-time detection and robust recognition of speed limit signs, specially designed for intelligent vehicles.... 相似文献