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2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)最新文献

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Mathematical model for herbivore/vegetation interaction in two-patch seasonal environment 双斑块季节环境下草食动物/植被相互作用的数学模型
Mohamed Bakheet, H. Laurie
In this paper we formulate a two-patch model for herbivore/vegetation interactions in seasonal environment. We assume the vegetation growth occurs during the raining season due to soil moisture. In this model animals are allowed to move between the patches searching for food. We show that when the migration propensity of leaving patch 1 is small the system has stable limit cycles. For large migration propensity we show that the system has stable limit cycle with 5 different frequencies, each of 2 years length, with a high total herbivore biomass and with a relatively high vegetation biomass. When we assume that the probability of leaving patch 1 is larger than the probability of leaving patch 2 the results show that the system has global attractive limit cycle with 5 different frequencies of 2 years length.
本文建立了季节性环境下草食动物/植被相互作用的双斑块模型。我们假设由于土壤湿度的关系,植被生长发生在雨季。在这个模型中,动物被允许在斑块之间移动寻找食物。我们证明了当离开patch 1的迁移倾向较小时,系统具有稳定的极限环。对于大迁移倾向,我们发现该系统具有稳定的极限环,有5个不同的频率,每个频率为2年,草食动物总生物量和植被生物量较高。当我们假设离开patch 1的概率大于离开patch 2的概率时,结果表明系统具有5个不同频率的全局吸引极限环,其长度为2年。
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引用次数: 1
Design of a New Model for Enhancement of the Performance of Nested Mobile Networks 一种提高嵌套移动网络性能的新模型设计
S. Ibrahim, Yasir Abdalgader Mohammed, Sally Dafaalla Awadalkarim Abualgasim
Recently; Network Mobility (NEMO) turns into a vital necessity for IP systems. It guarantees stable web availability amid the system versatility. Internet Engineering Task Force-Request for Comment (IETF RFC 4889) discussed route optimization in nested mobile network as an overcome of some limitations. In this paper, new model has been proposed to enhancing the performance of nested networks. Through the simulation in top-level of nested achieved 5% less end to end delay and 20% more throughput than NEMO BSP. In mid-level of nested achieved 10% less end to end delay and 18% more throughput than NEMO BSP. Finally; in third-level of nested achieved 14% less end to end delay and 15% more throughput than NEMO BSP. All of this taking into consideration that there is just three level of nesting, so when the levelof nesting increased results become efficacious. This model can classify as one of best proposed solution for nested mobile networks routing limitations and can be developed to reach optimal results by using more intelligent routers.
最近;网络移动性(NEMO)已成为IP系统的重要需求。它保证了稳定的网络可用性在系统的多功能性。Internet Engineering Task Force-Request for Comment (IETF RFC 4889)将嵌套移动网络中的路由优化作为克服某些限制的方法进行了讨论。本文提出了一种新的模型来提高嵌套网络的性能。通过在嵌套顶层的仿真,实现了比NEMO BSP减少5%的端到端延迟和提高20%的吞吐量。在嵌套的中层,实现了比NEMO BSP少10%的端到端延迟和18%的吞吐量。最后;在第三层嵌套中,实现了比NEMO BSP少14%的端到端延迟和15%的吞吐量。所有这些都考虑到只有三个嵌套级别,因此当嵌套级别增加时结果变得有效。该模型可以归类为针对嵌套移动网络路由限制的最佳解决方案之一,并且可以通过使用更智能的路由器来开发以达到最佳结果。
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引用次数: 0
Performance Evaluation of MIMO FSO Communication with Gamma-Gamma Turbulence Channel using Diversity Techniques 基于分集技术的伽马湍流信道MIMO FSO通信性能评估
R. Saeed, Esra B. Abbas
recently, Free Space Optical (FSO) communication has been evaluated in indoor and outdoor experimental environments for other communication applications, which opens the study of environmental effects in FSO communications, these effects represents the nature environments around us such as rain and fog, which are termed by mathematical distribution models such as Iognormal and Gamma-gamma distribution. One of the major solutions that proposed to reduce these effects and enhance the received signal is the use of Multiple Input Multiple Output MIMO diversity techniques in FSO which is also considered in this study in addition to Gamma-Gamma turbulence channel. In this paper, a simulation based study is performed to evaluate Free Space Optics Communication FSOC which represents the latest technologies that implies the highest data rate links which is been used in more sensitive communication fields such as satellite communications. The results obtained from Matlab modeling. Simulations showed that better received signal can be achieved.
近年来,自由空间光学(FSO)通信在室内和室外实验环境中进行了其他通信应用的评估,从而开启了对FSO通信中环境效应的研究,这些影响代表了我们周围的自然环境,如雨和雾,这些影响被称为数学分布模型,如ognormal和Gamma-gamma分布。提出减少这些影响和增强接收信号的主要解决方案之一是在FSO中使用多输入多输出MIMO分集技术,除了Gamma-Gamma湍流信道外,本研究还考虑了该技术。本文对自由空间光通信FSOC进行了仿真研究,该FSOC代表了最新的技术,意味着最高的数据速率链路,已用于更敏感的通信领域,如卫星通信。结果通过Matlab建模得到。仿真结果表明,该方法可以获得较好的接收信号。
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引用次数: 8
Implementation of Inverse Kinematics using ANFIS in Modified PUMA 560 through Tracking Control of Omni-directional wheels 基于全向车轮跟踪控制的改进型puma560反运动学ANFIS实现
Zeinab mahmoud Omer, Osman Ibrahim Al-Agha, K. Bilal, Altahir mohamoud al hassen, Walla Allsir
In this paper Adaptive Neuro Inference System algorithm, implemented on microcontrollers, was utilized to obtain the solution of IK problem of PUMA 560 robot arm. The problem of accurate and precise displacement is an acute problem faced by designers and operatorsNeuro-Fuzzy systems have been developed to make a sensible merge of linguistic information processing capability of Fuzzy Inference Systems (FIS) and learning capability of neural networks to evolve systems, which have strong modeling capability as well as relatively easy interpretability from the user point of view It differentiates itself from normal fuzzy systems by the adaptive parameters, i.e., both the premise and consequent parameters are adjustable. One of the main goals of a control system is to make the system more stable by reducing the steady state error as fast as possible. There are many types of control systems that can be used such as PID, PD+I, FUZZY PD+I and Adaptive Neuro-Fuzzy Inference System ANFIS. The use of ANFIS proved to be very efficient in handling the accuracy precision problem. Results obtained in this paper showed that error could be decreased to as low as 0.21% using this system. Stability in performance which is another dominant factor was acceptable to a great extent without any serious overshooting or unacceptable delay.
本文采用自适应神经推理系统算法,在单片机上实现PUMA 560机械臂IK问题的求解。精确位移问题是设计人员和操作人员面临的一个尖锐问题。神经模糊系统是将模糊推理系统(FIS)的语言信息处理能力和神经网络的学习能力合理地融合在一起来进化系统的,它具有强大的建模能力和相对容易的可解释性,从用户的角度来看,它与普通模糊系统的区别在于自适应参数。也就是说,前提参数和结果参数都是可调的。控制系统的主要目标之一是通过尽可能快地减小稳态误差使系统更加稳定。有许多类型的控制系统可以使用,如PID, PD+I, FUZZY PD+I和自适应神经模糊推理系统ANFIS。事实证明,利用ANFIS处理精度精度问题是非常有效的。实验结果表明,该系统可将测量误差降低至0.21%。性能的稳定性是另一个主要因素,在很大程度上是可以接受的,没有任何严重的超调或不可接受的延迟。
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引用次数: 0
Modification of bone repair hydroxyapatite scaffold by hydrothermal method with assistance of copperions: Testing the angiogenesis using Chick Chorioallantoic Membrane as ex vivo model 铜离子辅助羟基磷灰石骨修复支架的水热法修饰:以鸡绒毛膜尿囊膜为离体模型进行血管生成试验
Adil Elrayah, Shi Feng, J. Weng, Abdullah Aldhafeeri
The angiogenesis in the surface of hydroxyapatite scaffolds materials for bone repair was studied by establishing Chick Chorioallantoic Membrane model. Chick Chorioallantoic Membrane model with heavy vascularization was prepared to explore the angiogenesis formations. Hydroxyapatite scaffold has been coated hydrothermally with assistance of copper ions to improve its properties. The morphology of the new product was changed to the flower-like shape (micro/nano-structure) compared with uncoated scaffold. The optical camera, optical microscopic and scanning electron microscope were used to charcterized the investigated results. The investigated results implied that the modified (coated) scaffold can promoted angiogenesis formations compared with the uncoated scaffold. Furthermore, the present tests with chicken chorioallantoic membrane model allow a convenient, efficient, and low-cost method of exploring the angiogenesis on scaffolds surfaces.
通过建立鸡毛囊尿囊膜模型,研究羟基磷灰石骨修复支架材料表面血管生成情况。制备了重血管化鸡绒毛膜尿囊膜模型,探讨其血管生成机制。利用铜离子对羟基磷灰石支架进行水热包覆以改善其性能。与未涂覆支架相比,新产品的形态改变为花状(微/纳米结构)。利用光学相机、光学显微镜和扫描电镜对研究结果进行了表征。研究结果表明,与未包被支架相比,修饰后的支架可以促进血管生成。此外,本实验采用鸡绒毛膜尿囊膜模型,为探索支架表面血管生成提供了一种方便、高效、低成本的方法。
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引用次数: 0
Implementation of computed radiography in nuclear medicine imaging 计算机放射学在核医学成像中的应用
Abubaker Mohamed Najeeb, Albraa Mohamed Osman, Alizain Al-Tijani, Alwaleed Abdelrahman
Computed Radiography CR is a device uses photo stimulated phosphor mechanism to stores part of the absorbed X–ray dose in metastable states, The exposed CR cassette were acquired by the CR reader to stimulated the stored dose information and generate proportional irradiated object image. This study investigates the response of CR device to the gammarays emitted from radionuclide used in Nuclear Medicine Imaging. The emission of Technetium 99m Tc radiopharmaceutical substance was used as gamma ray sources. The feasibility of the integrated method is tested using the major image properties such as homogeneity, contrast and energy. The image properties were processed using MATLABtextregistered environment. The purpose of the study is to determine the possibility to implement the CR system in nuclear medicine imaging applications. An experiment setup was developed to address the proposed objective. The obtained image characteristics result indicates accepted field of view, homogenous radiation distribution and proportional response to the radioactive decay.
计算机放射成像CR是一种利用光激发荧光粉机制将吸收的部分x射线剂量储存在亚稳态的装置,CR读取器获取暴露的CR盒,对储存的剂量信息进行激发,生成成比例的被照射物体图像。研究了核医学成像中CR装置对放射性核素γ射线的响应。利用锝99m Tc放射性药物物质的发射作为伽马射线源。利用图像的均匀性、对比度和能量等主要特性验证了该方法的可行性。使用MATLAB文本注册环境对图像属性进行处理。本研究的目的是确定CR系统在核医学成像应用中的可能性。为了解决提出的目标,建立了一个实验装置。得到的图像特征结果显示出可接受的视场、均匀的辐射分布和对放射性衰变的成比例响应。
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引用次数: 2
Mathematical Model Implementation of Vertical Handover Network Decision Algorithms in Heterogeneous Network Based On QoS Parameters 基于QoS参数的异构网络垂直切换网络决策算法的数学模型实现
Aridegbe. A. A. Ipaye, Ali. M. A. Ibrahim, I. Ahmed, Sami A. Nagar, Dimitrios. N. G. Mitropoulos
Due to the demanding requirements of the next generation technology, there is a need for heterogeneous wireless networks. One of the most crucial issues in heterogeneous network is vertical handover and many algorithms have been introduced in order to make the vertical handover performance more accurate. In this paper, three scenarios based on MADM algorithms (WSM, WPM and TOPSIS) and their corresponding modified versions with respect to QoS parameter (delay, bandwidth, cost, and jitter) are compared and analyzed in order to determine their performance. The results show that the modified WPM consistently selected the third network, which indicates that any variations in the parameters will not affect the algorithm performance.
由于下一代技术的要求越来越高,对异构无线网络的需求越来越大。垂直切换是异构网络中最关键的问题之一,为了使垂直切换性能更准确,已经引入了许多算法。本文对基于MADM算法的三种场景(WSM、WPM和TOPSIS)及其相应的改进版本在QoS参数(延迟、带宽、成本和抖动)方面进行了比较和分析,以确定它们的性能。结果表明,改进后的WPM一致地选择了第三个网络,表明参数的任何变化都不会影响算法的性能。
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引用次数: 4
On Three Polynomials of Cyclic Silicate Networks 关于循环硅酸盐网络的三个多项式
Mohammed Salaheldeen Abdelgader, Osama Said Ahmed Abdallah, S. A. Mohammed
Let a graph $G = (V, E)$ is a simple graph with vertex set V such that, $|V| =n.$ A $D(G, x)=sum _{i=gamma (G)}^{n}d(G, i)x^{i}$ is a domination polynomial of G, where $d(G, i)$ is the number of dominating sets of size i in G. ADi $(G, x)=sum _{J}^{n} d_{i}(G, j)x^{J}$' is an independent domination polynomial of G, where $d_{i}(G, j)$ is the number of independent dominating sets of size j in G. $mathrm {A} D_{t}(G, x)=sum _{i=gamma _{t}(G)}^{n}d_{t}(G, i)x^{i}$ is a total domination polynomial of G, where $d_{t}(G, i)$ is the number of total dominating sets of size i in G. In this work we studied $D(G, x)$, $D_{i}(G, x)$ and $D_{t}(G, x)$, and introduced some of their properties. Further, these polynomials for cyclic silicate network are computed.
设图$G = (V, E)$是一个顶点集V的简单图,其如下:$|V| =n.$ a $D(G, x)=sum _{i=gamma (G)}^{n}d(G, i)x^{i}$是G的一个控制多项式,其中$d(G, i)$是G中大小为i的控制集的个数。ADi $(G, x)=sum _{J}^{n} d_{i}(G, j)x^{J}$ '是G的一个独立控制多项式,其中$d_{i}(G, j)$是G中大小为j的独立控制集的个数。$mathrm {A} D_{t}(G, x)=sum _{i=gamma _{t}(G)}^{n}d_{t}(G, i)x^{i}$是G的一个总控制多项式,其中$d_{t}(G, i)$为g中大小为i的支配集的总数。本文研究了$D(G, x)$、$D_{i}(G, x)$和$D_{t}(G, x)$,并介绍了它们的一些性质。进一步,计算了循环硅酸盐网络的这些多项式。
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引用次数: 0
Denoising CT Images using Median based Filters: a Review 基于中值滤波器的CT图像去噪研究综述
Arwa Alhadi Omer, Obai Ibrahim Hassan, A. Ahmed, Alwaleed Abdelrahman
medical imaging is one of the essential tools for evidence-based medical diagnosis. However, salt and pepper noise could corrupt the original image, reducing the overall image quality. Computed tomography (CT) images database were used. The filter execution and evaluation algorithm were implemented using MATLAB environment. This article was conducted to study the performance of four different median based filters standard median filter (SMF), adaptive median filter AMF, center weight median filter (CWMF), and progressive switching median filter (PSMF), when applied to medical images. Noise immunity and edge-preserving were evaluated to characterizing the filtrations processes, by means of statistical (texture) and mathematical measures Peak Signal to Noise Ratio (PSNR), Mean Square Error (MSE), Correlation Ratio (CORR), and Image Enhancement Factor (IEF) for noise reduction, and automatic edge detection as visual evaluation for edges. The results shown that the Adaptive Median Filter(AMF) can remove the salt and pepper noise from CT image, the AMF algorithm maintain the edge of the image and detail information of the objects, And the overall filters comparison indicates a quite effective noise removal and satisfactory performance of AMF among others.
医学影像是循证医学诊断的重要工具之一。然而,椒盐噪声可能会破坏原始图像,降低整体图像质量。使用计算机断层扫描(CT)图像数据库。在MATLAB环境下实现了滤波器的执行和评估算法。本文研究了标准中值滤波器(SMF)、自适应中值滤波器(AMF)、中心权重中值滤波器(CWMF)和渐进式切换中值滤波器(PSMF)四种基于中值的滤波器在医学图像中的应用性能。通过统计(纹理)和数学方法评估滤波过程的抗噪性和边缘保持性,通过峰值信噪比(PSNR)、均方误差(MSE)、相关比(CORR)和图像增强因子(IEF)进行降噪,并通过自动边缘检测作为边缘的视觉评价。结果表明,自适应中值滤波器(AMF)能够去除CT图像中的椒盐噪声,保持了图像的边缘和物体的细节信息,整体滤波器的对比表明,AMF具有较好的去噪效果和令人满意的性能。
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引用次数: 12
Designing a verbal deaf talker system using mouth gestures 设计一个使用嘴型手势的聋哑人说话系统
A. Hassan, Ashraf Haitham Bushra, O. Hamed, L.M. Ahmed
Deaf people are facing real communication problems with everyone they interact with, and the available key solution is to use the sign language. It is nonverbal form of language, thatuses hand gestures to convey thoughts by applying particular movements of hand with a specificshape is made out of them, even though these hand gestures are powerful tool of communication among normal people and deaf community but still it has its own set of problems, like it has to be fully mastered by the both communication parties. This paper is proposing a simple and low cost verbal communication device for the deaf people, which enables them to use their mouth only. The findings showed that, this novel technique can be considered as very efficient replacement for the ordinary hand gesture by converting the lips pattern it into a hearable speech allowing the deaf to communicate as easy as normal people do.
聋人与他们交往的每个人都面临着真正的沟通问题,而可用的关键解决方案就是使用手语。它是一种非语言形式,通过特定的手部动作和特定的形状来传达思想,尽管这些手势是正常人和聋人社区之间强大的交流工具,但它仍然有自己的一套问题,比如它必须由交流双方完全掌握。本文为聋哑人设计了一种简单、低成本的语言交流装置,使聋哑人只用嘴进行语言交流。研究结果表明,这项新技术可以被认为是普通手势的有效替代品,它将嘴唇图案转化为可听的语言,使聋哑人能像正常人一样轻松地交流。
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引用次数: 1
期刊
2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)
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