首页 > 最新文献

2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)最新文献

英文 中文
High sensitivity of sensors based on two-dimensional photonic crystal 基于二维光子晶体的高灵敏度传感器
F. Bougriou, T. Bouchemat, M. Bouchemat, N. Paraire
Photonic crystals (PCs) have achieved a lot of research significance due to their projected applications. Their use as sensors is enabled due to their well-defined physical properties such as reflectance/ transmittance, superior levels of sensitivity resulting in precise detection limits. In this paper, we propose an ultracompact RI (refractive index) sensor based on single line photonic crystal waveguide structure. The properties of the sensor are simulated using the finite-difference time-domain (FDTD) method. The transmission spectrums of the sensor with different ambient refractive indices are calculated. The calculation results show that a change in ambient RI is apparent; the sensitivity of the sensor is achieved. The radius of the air holes localized at each side of the line defect is optimized to realize high sensitivity, wide measurement range and improved transmission. Development of sensor designs that enhance sensitivity is especially important because it allows detection of lower concentrations of analytes. For instance, refractive index (RI) sensing techniques detect an analyte by a local refractive index shift.
光子晶体具有广阔的应用前景,具有重要的研究意义。由于其明确定义的物理特性,如反射率/透射率,优越的灵敏度水平导致精确的检测极限,因此可以将其用作传感器。本文提出了一种基于单线光子晶体波导结构的超紧凑型折射率传感器。采用时域有限差分(FDTD)方法对传感器的性能进行了仿真。计算了不同环境折射率下传感器的透射光谱。计算结果表明,环境RI变化明显;实现了传感器的灵敏度。优化了定位在线路缺陷两侧的气孔半径,实现了高灵敏度、宽测量范围和提高透射率。提高灵敏度的传感器设计的发展尤其重要,因为它允许检测低浓度的分析物。例如,折射率(RI)传感技术通过局部折射率位移检测分析物。
{"title":"High sensitivity of sensors based on two-dimensional photonic crystal","authors":"F. Bougriou, T. Bouchemat, M. Bouchemat, N. Paraire","doi":"10.1109/SIECPC.2011.5877004","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5877004","url":null,"abstract":"Photonic crystals (PCs) have achieved a lot of research significance due to their projected applications. Their use as sensors is enabled due to their well-defined physical properties such as reflectance/ transmittance, superior levels of sensitivity resulting in precise detection limits. In this paper, we propose an ultracompact RI (refractive index) sensor based on single line photonic crystal waveguide structure. The properties of the sensor are simulated using the finite-difference time-domain (FDTD) method. The transmission spectrums of the sensor with different ambient refractive indices are calculated. The calculation results show that a change in ambient RI is apparent; the sensitivity of the sensor is achieved. The radius of the air holes localized at each side of the line defect is optimized to realize high sensitivity, wide measurement range and improved transmission. Development of sensor designs that enhance sensitivity is especially important because it allows detection of lower concentrations of analytes. For instance, refractive index (RI) sensing techniques detect an analyte by a local refractive index shift.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129605490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Performance eveluation of IPv4 and IPv6 networks in absence of link layer protection 无链路层保护的IPv4和IPv6网络性能评估
Asjad Amin, Waqas Anjum, Muhammad Salman Malik, Syed Noman Ali, Ammar Naseer, Ahmed Waseem
This paper evaluates the performance of IPv4 and IPv6 networks in the absence of link layer protection. Behavior of both the networks has been discussed and simulated in case of ideal scenario, low noise, medium noise, high noise and very high noise environment. Transmission behavior at each router is observed and computed to understand the comparative performance of IPv4 and IPv6 datagram's. Our simulation results for throughput, transmission time, number of corrupted packets and number of retransmissions clearly indicates that IPv6 performs better in ideal and low noise scenario as there is no checksum computed at each router and number of retransmissions for corrupted packets are also less. As the system moves from ideal to high noise, a decline in the performance of IPv6 is observed. IPv4 on the other hand produces better throughput as corrupted packets are verified and discarded at each router which saves extra wastage of bandwidth.
本文评估了IPv4和IPv6网络在没有链路层保护的情况下的性能。讨论并模拟了两种网络在理想场景、低噪声、中噪声、高噪声和甚高噪声环境下的行为。观察和计算每个路由器上的传输行为,以了解IPv4和IPv6数据报的比较性能。我们对吞吐量、传输时间、损坏数据包数量和重传次数的模拟结果清楚地表明,IPv6在理想和低噪声场景下表现更好,因为每个路由器上没有计算校验和,并且损坏数据包的重传次数也更少。当系统从理想噪声到高噪声时,IPv6的性能下降。另一方面,IPv4产生更好的吞吐量,因为损坏的数据包在每个路由器上被验证和丢弃,从而节省了额外的带宽浪费。
{"title":"Performance eveluation of IPv4 and IPv6 networks in absence of link layer protection","authors":"Asjad Amin, Waqas Anjum, Muhammad Salman Malik, Syed Noman Ali, Ammar Naseer, Ahmed Waseem","doi":"10.1109/SIECPC.2011.5876919","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876919","url":null,"abstract":"This paper evaluates the performance of IPv4 and IPv6 networks in the absence of link layer protection. Behavior of both the networks has been discussed and simulated in case of ideal scenario, low noise, medium noise, high noise and very high noise environment. Transmission behavior at each router is observed and computed to understand the comparative performance of IPv4 and IPv6 datagram's. Our simulation results for throughput, transmission time, number of corrupted packets and number of retransmissions clearly indicates that IPv6 performs better in ideal and low noise scenario as there is no checksum computed at each router and number of retransmissions for corrupted packets are also less. As the system moves from ideal to high noise, a decline in the performance of IPv6 is observed. IPv4 on the other hand produces better throughput as corrupted packets are verified and discarded at each router which saves extra wastage of bandwidth.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132150834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid-mode analysis of anisotropic high-Tc superconducting passive microwave circuits on lossy anisotropic dielectric layers 损耗各向异性介质层上各向异性高tc超导无源微波电路的混合模式分析
M. L. Tounsi, A. Belguidoum, M. Yagoub
A computationally efficient full-wave technique is presented to analyze the anisotropic high-Tc superconducting passive microwave circuits on lossy anisotropic layers in multilayer configuration. The numerical analysis was carried out by the spectral domain approach using a dyadic Green's functions. Simulated complex propagation constant and quality factor parameters have been successfully compared to both published measured and theoretical results.
提出了一种计算效率高的全波技术,用于分析多层有耗各向异性层上的各向异性高tc超导无源微波电路。采用并矢格林函数的谱域方法进行了数值分析。模拟的复杂传播常数和质量因子参数已成功地与已发表的测量结果和理论结果进行了比较。
{"title":"Hybrid-mode analysis of anisotropic high-Tc superconducting passive microwave circuits on lossy anisotropic dielectric layers","authors":"M. L. Tounsi, A. Belguidoum, M. Yagoub","doi":"10.1109/SIECPC.2011.5876999","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876999","url":null,"abstract":"A computationally efficient full-wave technique is presented to analyze the anisotropic high-Tc superconducting passive microwave circuits on lossy anisotropic layers in multilayer configuration. The numerical analysis was carried out by the spectral domain approach using a dyadic Green's functions. Simulated complex propagation constant and quality factor parameters have been successfully compared to both published measured and theoretical results.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116073810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
An efficient hardware design for intra-prediction in H.264/AVC decoder 一种高效的H.264/AVC解码器内预测硬件设计
M. Nadeem, Stephan Wong, G. Kuzmanov
The H.264/AVC intra-frame codec is widely used to compress image/video data for applications like Digital Still Camera (DSC), Digital Video Camera (DVC), Television Studio Broadcast, and Surveillance video. Intra-prediction is one of the top 3 compute-intensive processing functions in the H.264/AVC baseline decoder [6] and, therefore, consumes significant number of compute cycles a processor. In this paper, we propose a configurable, high-throughput, and area-efficient hardware design for the intra-prediction unit. The intra-prediction algorithm is optimized to significantly reduce the redundancy in addition operations (e.g., 27% reduction when compared with state-of-the-art in literature [12]). The area requirement for our hardware implementation of the optimized intra-prediction algorithm is further reduced by employing a configurable design to reuse data paths for mutually exclusive processing scenarios. The proposed design is described in VHDL and synthesized under 0.18μm CMOS standard cell technology. While working at a clock frequency of 150 MHz, it can easily meet the throughput requirement of HDTV resolutions and consumes only 21K gates.
H.264/AVC帧内编解码器被广泛用于压缩图像/视频数据,如数字静止相机(DSC)、数字视频摄像机(DVC)、电视演播室广播和监控视频。Intra-prediction是H.264/AVC基线解码器中计算密集型的前三大处理功能之一[6],因此一个处理器会消耗大量的计算周期。在本文中,我们提出了一种可配置的、高吞吐量的、面积有效的内预测单元硬件设计。对内预测算法进行了优化,显著减少了加法操作的冗余(例如,与文献[12]中最先进的算法相比减少了27%)。通过采用可配置设计为互斥处理场景重用数据路径,我们优化的内部预测算法的硬件实现的面积需求进一步减少。该设计采用VHDL语言进行描述,并在0.18μm CMOS标准单元技术下进行合成。当工作在150mhz时钟频率时,它可以轻松满足HDTV分辨率的吞吐量要求,并且仅消耗21K门。
{"title":"An efficient hardware design for intra-prediction in H.264/AVC decoder","authors":"M. Nadeem, Stephan Wong, G. Kuzmanov","doi":"10.1109/SIECPC.2011.5876914","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876914","url":null,"abstract":"The H.264/AVC intra-frame codec is widely used to compress image/video data for applications like Digital Still Camera (DSC), Digital Video Camera (DVC), Television Studio Broadcast, and Surveillance video. Intra-prediction is one of the top 3 compute-intensive processing functions in the H.264/AVC baseline decoder [6] and, therefore, consumes significant number of compute cycles a processor. In this paper, we propose a configurable, high-throughput, and area-efficient hardware design for the intra-prediction unit. The intra-prediction algorithm is optimized to significantly reduce the redundancy in addition operations (e.g., 27% reduction when compared with state-of-the-art in literature [12]). The area requirement for our hardware implementation of the optimized intra-prediction algorithm is further reduced by employing a configurable design to reuse data paths for mutually exclusive processing scenarios. The proposed design is described in VHDL and synthesized under 0.18μm CMOS standard cell technology. While working at a clock frequency of 150 MHz, it can easily meet the throughput requirement of HDTV resolutions and consumes only 21K gates.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115144014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Evidence of Pool-Frenkel conduction mechanism in Sr-doped lanthanum ferrite La1−xSrxFeO3(0≤x≤1) system sr掺杂镧铁氧体La1−xSrxFeO3(0≤x≤1)体系中Pool-Frenkel传导机制的证据
A. Zafar, Z. Imran, M. Rafiq, M. Hasan
Nanocrystelline La1−xSrxFeO3 (0≤x≤1) was prepared by sol gel citrate method. The structural characterization of the compound was carried out by XRD and SEM. X-Ray diffraction showed that single phase LaFeO3 was formed with an orthorhombic structure. DC measurements of the prepared material were investigated from 300K-400K. It has been observed that increase in Sr content enhances the conductivity. The non-linearity in IV curves indicates that the Poole-Frenkel mode of conduction hold for such system.
采用溶胶-凝胶柠檬酸法制备了La1−xSrxFeO3纳米晶体(0≤x≤1)。通过XRD和SEM对化合物进行了结构表征。x射线衍射结果表明,LaFeO3为正交结构。在300K-400K范围内对制备的材料进行了直流测量。观察到锶含量的增加提高了电导率。IV曲线的非线性表明该体系的普尔-弗伦克尔传导模式成立。
{"title":"Evidence of Pool-Frenkel conduction mechanism in Sr-doped lanthanum ferrite La1−xSrxFeO3(0≤x≤1) system","authors":"A. Zafar, Z. Imran, M. Rafiq, M. Hasan","doi":"10.1109/SIECPC.2011.5876924","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876924","url":null,"abstract":"Nanocrystelline La<inf>1−x</inf>Sr<inf>x</inf>FeO<inf>3</inf> (0≤x≤1) was prepared by sol gel citrate method. The structural characterization of the compound was carried out by XRD and SEM. X-Ray diffraction showed that single phase LaFeO<inf>3</inf> was formed with an orthorhombic structure. DC measurements of the prepared material were investigated from 300K-400K. It has been observed that increase in Sr content enhances the conductivity. The non-linearity in IV curves indicates that the Poole-Frenkel mode of conduction hold for such system.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133233967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Dual band fractal monopoles 双波段分形单极子
R. S. Aziz, M. Alkanhal, A. Sheta
In this paper, two new dual band fractal antenna configurations are proposed. The proposed antennas are built on a partial ground plane and fed through a microstrip feed line. The basic design is based on the self similarity principle of fractal profiles but uses different slot geometries. The first antenna has an arrow-like complex slot while the other has only one simple rectangular wide slot. Numerical simulations are utilized to verify the simple design procedures of the proposed antenna structures. The second simple-slot dual band fractal monopole with self similarity factor of 1.5 has been realized on FR4 substrate and measured. Simulations and experimental results are in good agreement and demonstrate the good matching, bandwidth and radiation performance of the proposed antenna structures.
本文提出了两种新的双波段分形天线结构。所提出的天线建立在部分地平面上,并通过微带馈线馈电。基本设计是基于分形轮廓的自相似原理,但采用了不同的槽形几何形状。第一根天线有一个箭头状的复杂槽,而另一根天线只有一个简单的矩形宽槽。数值模拟验证了所提出的天线结构的简单设计过程。在FR4衬底上实现了第二个自相似系数为1.5的单槽双波段分形单极子,并进行了实测。仿真结果与实验结果吻合良好,表明该天线结构具有良好的匹配性、带宽和辐射性能。
{"title":"Dual band fractal monopoles","authors":"R. S. Aziz, M. Alkanhal, A. Sheta","doi":"10.1109/SIECPC.2011.5876928","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876928","url":null,"abstract":"In this paper, two new dual band fractal antenna configurations are proposed. The proposed antennas are built on a partial ground plane and fed through a microstrip feed line. The basic design is based on the self similarity principle of fractal profiles but uses different slot geometries. The first antenna has an arrow-like complex slot while the other has only one simple rectangular wide slot. Numerical simulations are utilized to verify the simple design procedures of the proposed antenna structures. The second simple-slot dual band fractal monopole with self similarity factor of 1.5 has been realized on FR4 substrate and measured. Simulations and experimental results are in good agreement and demonstrate the good matching, bandwidth and radiation performance of the proposed antenna structures.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134539635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Fiber optic sensor-based concrete structural health monitoring 基于光纤传感器的混凝土结构健康监测
M. Afzal, Shahid Kabir, O. Sidek
Fiber optic sensors are being extensively developed and utilized in various fields, compared to conventional sensing technologies, due to their exclusive properties, such as complete immunity to electromagnetic interference, capability of functioning in hostile surroundings, elevated sensitivity and user-friendliness. The unique characteristics of fiber optic sensors can provide more accurate and precise detection of crack damage in concrete structures, the deterioration of which is one of the major growing problems worldwide. This paper provides a comprehensive critical review and comparison of various approaches used in detecting crack damage using fiber optic sensors. A separate section is devoted to highlight the areas where further improvements are required. The compatibility and sustainability of the latest fiber optic sensors in detecting concrete damage are also studied and evaluated in this paper.
与传统传感技术相比,光纤传感器由于其独特的特性,如完全不受电磁干扰、能够在恶劣环境中工作、灵敏度高、用户友好等,正在广泛发展和应用于各个领域。光纤传感器的独特特性可以为混凝土结构的裂缝损伤提供更准确、更精确的检测,混凝土结构的恶化是世界范围内日益突出的主要问题之一。本文对利用光纤传感器检测裂纹损伤的各种方法进行了全面的评述和比较。一个单独的部分专门强调需要进一步改进的领域。本文还对新型光纤传感器在混凝土损伤检测中的兼容性和可持续性进行了研究和评价。
{"title":"Fiber optic sensor-based concrete structural health monitoring","authors":"M. Afzal, Shahid Kabir, O. Sidek","doi":"10.1109/SIECPC.2011.5876903","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876903","url":null,"abstract":"Fiber optic sensors are being extensively developed and utilized in various fields, compared to conventional sensing technologies, due to their exclusive properties, such as complete immunity to electromagnetic interference, capability of functioning in hostile surroundings, elevated sensitivity and user-friendliness. The unique characteristics of fiber optic sensors can provide more accurate and precise detection of crack damage in concrete structures, the deterioration of which is one of the major growing problems worldwide. This paper provides a comprehensive critical review and comparison of various approaches used in detecting crack damage using fiber optic sensors. A separate section is devoted to highlight the areas where further improvements are required. The compatibility and sustainability of the latest fiber optic sensors in detecting concrete damage are also studied and evaluated in this paper.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134296320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Absorption and transport enhancement by Ag nanoparticle plasmonics for organic optoelectronics 银纳米粒子等离子体在有机光电子学中的吸收和输运增强
Mei Xue, Huajun Shen, Jinfeng Zhu, Seong-ku Kim, Lu Li, Zhibin Yu, Q. Pei, Kang L. Wang, H. Qasem, A. Alzaben, H. Enaya, Zaid S. Al Otaibi
The organic films such as P3HT/PCBM incorporating Ag metal nanoparticles are fabricated and experimentally characterized. Due to the excited surface plasma induced by Ag metal nanoparticles, the absorption of the active organic material layer is increased by around 30%. The broadened absorption spectrum to the 260–650nm wavelength range is also observed from our measurements because of the enhanced scattering cross section by Ag metal nanoparticles. Furthermore, by incorporating Ag nanoparticles into the active layer, the mobility have also been improved. Finite Difference Time Domain (FDTD) simulations confirm the increase in transmission of electromagnetic radiation at visible wavelength. The hopping model is proposed to explain the transport mechanism for the device operations. These observations suggest a variety of approaches for improving the performance of general organic optoelectronic devices.
制备了含银金属纳米粒子的P3HT/PCBM有机薄膜,并对其进行了实验表征。由于银金属纳米颗粒诱导的表面等离子体的激发,活性有机材料层的吸收率提高了30%左右。由于银金属纳米粒子的散射截面增强,我们的测量还观察到260-650nm波长范围内的吸收光谱被拓宽。此外,通过在活性层中加入银纳米粒子,也提高了其迁移率。时域有限差分(FDTD)仿真证实了电磁辐射在可见光波段的传输增加。提出了跳变模型来解释设备操作的传输机制。这些观察结果为提高一般有机光电器件的性能提供了多种方法。
{"title":"Absorption and transport enhancement by Ag nanoparticle plasmonics for organic optoelectronics","authors":"Mei Xue, Huajun Shen, Jinfeng Zhu, Seong-ku Kim, Lu Li, Zhibin Yu, Q. Pei, Kang L. Wang, H. Qasem, A. Alzaben, H. Enaya, Zaid S. Al Otaibi","doi":"10.1109/SIECPC.2011.5876955","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876955","url":null,"abstract":"The organic films such as P3HT/PCBM incorporating Ag metal nanoparticles are fabricated and experimentally characterized. Due to the excited surface plasma induced by Ag metal nanoparticles, the absorption of the active organic material layer is increased by around 30%. The broadened absorption spectrum to the 260–650nm wavelength range is also observed from our measurements because of the enhanced scattering cross section by Ag metal nanoparticles. Furthermore, by incorporating Ag nanoparticles into the active layer, the mobility have also been improved. Finite Difference Time Domain (FDTD) simulations confirm the increase in transmission of electromagnetic radiation at visible wavelength. The hopping model is proposed to explain the transport mechanism for the device operations. These observations suggest a variety of approaches for improving the performance of general organic optoelectronic devices.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131647815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A new FIFO design enabling fully-synchronous on-chip data communication network 一种新的FIFO设计,实现完全同步的片上数据通信网络
M. Elrabaa
A new FIFO design that enables fully synchronous circuits with unrelated clocks to communicate synchronously is proposed. Not only would every circuit be running on its own clock, but the interconnection network is fully synchronous and runs at an unrelated clock of its own. With relatively low gate count, the proposed FIFO allows communicating circuits to put/get data at their respective frequencies (1 datum/clock cycle) till it gets filled then the rates converge to the lower frequency. The maximum initial latency is 3 cycles of the consumer's clock. Several manifestations of the proposed FIFO have been developed for different design cases including data width mismatch between producer and consumer. The operation of different FIFOs has been verified using gate-level simulations for several ratios of clock frequencies. An 8-cell FIFO has been designed at the transistor-level and Spice simulations using a 0.13 μm, 1.2V technology has been carried out. It shows proper operation at producer and consumer clock frequencies of 2GHz and 3.125GHz, respectively, with a data transfer rate of more than 2Giga datum/second and an average power of 721 μW.
提出了一种新的FIFO设计,使具有不相关时钟的完全同步电路能够同步通信。不仅每个电路都按照自己的时钟运行,而且互联网络是完全同步的,按照自己不相关的时钟运行。由于门数相对较低,所提出的FIFO允许通信电路以各自的频率(1个基准/时钟周期)输入/获取数据,直到它被填充,然后速率收敛到较低的频率。最大初始延迟是消费者时钟的3个周期。提出的FIFO的几种表现形式已经针对不同的设计案例进行了开发,包括生产者和消费者之间的数据宽度不匹配。不同的fifo的操作已经通过几种时钟频率比的门级模拟进行了验证。在晶体管级设计了一个8单元FIFO,并使用0.13 μm, 1.2V技术进行了Spice模拟。它在生产时钟频率为2GHz和消费时钟频率为3.125GHz时工作正常,数据传输率超过2Giga datum/s,平均功率为721 μW。
{"title":"A new FIFO design enabling fully-synchronous on-chip data communication network","authors":"M. Elrabaa","doi":"10.1109/SIECPC.2011.5877006","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5877006","url":null,"abstract":"A new FIFO design that enables fully synchronous circuits with unrelated clocks to communicate synchronously is proposed. Not only would every circuit be running on its own clock, but the interconnection network is fully synchronous and runs at an unrelated clock of its own. With relatively low gate count, the proposed FIFO allows communicating circuits to put/get data at their respective frequencies (1 datum/clock cycle) till it gets filled then the rates converge to the lower frequency. The maximum initial latency is 3 cycles of the consumer's clock. Several manifestations of the proposed FIFO have been developed for different design cases including data width mismatch between producer and consumer. The operation of different FIFOs has been verified using gate-level simulations for several ratios of clock frequencies. An 8-cell FIFO has been designed at the transistor-level and Spice simulations using a 0.13 μm, 1.2V technology has been carried out. It shows proper operation at producer and consumer clock frequencies of 2GHz and 3.125GHz, respectively, with a data transfer rate of more than 2Giga datum/second and an average power of 721 μW.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114718932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
An implementation of a 2D FIR filter using the signed-digit number system 使用符号数字系统的二维FIR滤波器的实现
Yasser M. Seddiq, Hesham Altwaijry
An FIR filter is implemented in this work. Enhancing the arithmetic operations of the filter is considered. For the addition operation, the signed-digit number system is utilized. For the multiplication operation, Booth-3 algorithm is used to reduce the number of partial products. Then a 1D filter is used to construct a 2D filter that is deployed on real hardware in an image processing application.
在此工作中实现了FIR滤波器。对滤波器的算术运算进行了改进。对于加法运算,使用了有符号数字系统。对于乘法运算,采用Booth-3算法来减少部分乘积的个数。然后,使用一维滤波器构建二维滤波器,该滤波器部署在图像处理应用程序的实际硬件上。
{"title":"An implementation of a 2D FIR filter using the signed-digit number system","authors":"Yasser M. Seddiq, Hesham Altwaijry","doi":"10.1109/SIECPC.2011.5876968","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876968","url":null,"abstract":"An FIR filter is implemented in this work. Enhancing the arithmetic operations of the filter is considered. For the addition operation, the signed-digit number system is utilized. For the multiplication operation, Booth-3 algorithm is used to reduce the number of partial products. Then a 1D filter is used to construct a 2D filter that is deployed on real hardware in an image processing application.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115306869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
期刊
2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1