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Transanal Total Mesorectal Excision and Fluorescence Ureteral Navigation for En Bloc Resection of Rectal Cancer With Pelvic Abscess. 经肛门中直肠全切除术和输尿管荧光导航用于伴有盆腔脓肿的直肠癌全切术
IF 3.9 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-01-01 Epub Date: 2023-08-30 DOI: 10.1097/DCR.0000000000002905
Shunjin Ryu, Keisuke Goto, Takahiro Kitagawa, Atsushi Nagashima, Takehiro Kobayashi, Junichi Shimada, Ryusuke Ito, Yukio Nakabayashi
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引用次数: 0
Design of Multi-bit Pulsed Latches with Scan Input in CMOS ONK65 Technology 采用 CMOS ONK65 技术设计带扫描输入的多位脉冲锁存器
IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2023-12-01 DOI: 10.13164/re.2023.0557
V. Kral
. This paper presents a new multi-bit pulse latch design that places innovative emphasis on the integration of scan input for automatic test pattern generation (ATPG). Two different designs have been developed in ONK65 technology (65 nm process): the first with standard threshold voltage (SVT) tailored for consumer products and the second with high threshold voltage (HVT) for automotive, each addressing specific aspects of process, voltage, and temperature (PVT). Multi-bit pulse latches offer a more efficient alternative to multi-bit flip-flop circuits and promise significant power and area savings. However, the efficiency of these latches depends on the technology, library type and customer requirements. A multi-bit pulse latch consists of a pulse generator and a pulsed latch. Each component is carefully designed for its specific purpose and the most appropriate topology is selected. Furthermore, the paper serves as a comprehensive guide to the design of low-power digital cells. It rethinks the topology design approach by emphasizing the scan input and presents simulation results for both components of the multi-bit pulse latch, highlighting their advantages. The results show that a less strict PVT offers greater benefits than a strict PVT.
. 本文提出了一种新的多比特脉冲锁存器设计,创新地强调了自动测试图生成(ATPG)中扫描输入的集成。采用ONK65技术(65纳米工艺)开发了两种不同的设计:第一种是为消费产品量身定制的标准阈值电压(SVT),第二种是为汽车定制的高阈值电压(HVT),每种设计都针对工艺、电压和温度(PVT)的特定方面。多比特脉冲锁存器为多比特触发器电路提供了更有效的替代方案,并承诺显著节省功率和面积。然而,这些锁存器的效率取决于技术、图书馆类型和客户要求。多比特脉冲锁存器由脉冲发生器和脉冲锁存器组成。每个组件都是针对其特定用途精心设计的,并选择了最合适的拓扑结构。并对低功耗数字小区的设计提供了全面的指导。以扫描输入为重点,重新思考了拓扑设计方法,并给出了多比特脉冲锁存器两部分的仿真结果,突出了它们的优点。结果表明,较不严格的PVT比严格的PVT提供更大的好处。
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引用次数: 0
Optimization of NOMA Downlink Network Parameters under Harvesting Energy Strategy Using Multi-Objective GWO 利用多目标 GWO 优化能量收集策略下的 NOMA 下行链路网络参数
IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2023-12-01 DOI: 10.13164/re.2023.0492
F. Titel, M. Belattar
. Non-orthogonal multiple access technique (NOMA) is based on the principle of sharing the same physical resource, over several power levels, where user’s signals are transmitted by using the superposition-coding scheme at the transmitter and these users signals are de-coded by the receiver by means of successive interference cancellation technique (SIC). In this work, performance of NOMA Downlink network under Rayleigh fading distribution is studied, in the power domain where a power beacon (PB) is used to help a base station (BS) to serve distant users, by Wireless Power Transfer (WPT). The harvested energy permits by the BS, supports information signal transmission to NOMA users. This concept can be an effective way to power Internet of Things (IoT) devices, reduce battery dependency, and promote energy sustainability and may be used in SWIPT systems and vehicular networks. To improve the key performance indicators of the system expressed by the outage performance of NOMA users and system throughput, a Multi-Objective Grey Wolf Optimizer algorithm (MOGWO) is used to find optimal values of several influencing parameters. These parameters are partition time expressing the harvesting energy time, the power conversion factor and power allocation coefficients
. 非正交多址技术(NOMA)是基于共享同一物理资源的原理,在多个功率水平上,用户信号在发射机使用叠加编码方案发射,这些用户信号由接收机使用连续干扰消除技术(SIC)解码。本文研究了瑞利衰落分布下的NOMA下行网络在功率域中的性能,其中功率信标(PB)通过无线功率传输(WPT)来帮助基站(BS)为远程用户服务。收集的能量经BS许可,支持向NOMA用户传输信息信号。这一概念可以有效地为物联网(IoT)设备供电,减少对电池的依赖,促进能源的可持续性,并可用于swift系统和车载网络。为了改进由NOMA用户停机性能和系统吞吐量表示的系统关键性能指标,采用多目标灰狼优化算法(MOGWO)寻找多个影响参数的最优值。这些参数是表示采集能量时间的分配时间、功率转换系数和功率分配系数
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引用次数: 0
Single Active Block-Based Emulators for Electronically Controllable Floating Meminductors and Memcapacitors 基于单个有源块的电子可控浮动薄膜电感器和薄膜电容器仿真器
IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2023-12-01 DOI: 10.13164/re.2023.0568
M. Tatović, P. B. Petrovic
. This paper introduces two novel emulator circuits that employ a single active block. The first circuit utilizes a Voltage Differencing Transconductance Amplifier (VDTA) to emulate the behavior of a floating/grounded incremental/decremental flux-controlled meminductor. The second circuit, based on a Voltage Differencing Current Conveyor (VDCC), emulates the characteristics of mem-capacitance. Both emulation circuits are constructed using capacitors as the only type of grounded passive element. Notably, these circuits possess electronic tunability, enabling control over the realized inverse meminduct-ance/memcapacitance. The theoretical analysis of the proposed emulators includes an investigation into potential non-idealities and parasitic effects. By carefully selecting the passive circuit elements, efforts were made to minimize the impact of these unwanted effects. In comparison to existing designs documented in the literature, the proposed circuits demonstrate remarkable simplicity. Additionally, they exhibit wide frequency operability (up to 50 MHz) and successfully pass the non-volatility test. Simulation results conducted using 0.18 μm CMOS technology and a ±0.9 V supply voltage align closely with the theoretical predictions. Furthermore, Monte Carlo simulations and corner analysis are employed to evaluate the circuit's robustness. To validate the feasibility of the proposed solution, experimental tests are performed using commercially available components.
. 本文介绍了两种采用单有源模块的新型仿真电路。第一个电路利用一个电压差跨导放大器(VDTA)来模拟一个浮动/接地的增量/递减磁控记忆电感的行为。第二个电路,基于电压差电流传送带(VDCC),模拟memo -电容的特性。这两种仿真电路都使用电容器作为唯一一种接地无源元件。值得注意的是,这些电路具有电子可调性,能够控制所实现的逆mem电感/ mem电容。所提出的仿真器的理论分析包括对潜在非理想性和寄生效应的研究。通过仔细选择无源电路元件,努力使这些不良影响最小化。与文献中记载的现有设计相比,所提出的电路表现出非凡的简单性。此外,它们具有宽频率可操作性(高达50 MHz),并成功通过非挥发性测试。采用0.18 μm CMOS工艺和±0.9 V电源电压进行的仿真结果与理论预测基本一致。此外,采用蒙特卡罗仿真和拐角分析来评估电路的鲁棒性。为了验证所建议的解决方案的可行性,使用市售组件进行了实验测试。
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引用次数: 0
A Random Access Scheme for Aggregate Traffic Based on Deep Fusion of Supermartingale and Improved SSA 基于超级鞅和改进 SSA 深度融合的聚合流量随机访问方案
IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2023-12-01 DOI: 10.13164/re.2023.0625
H. L. Sun, Z. H. Liao, W. D. Shen
. The network services present diversity as the continuous evolution of communication scenarios, which brings a great challenge to the efficient utilization of resources. The ALOHA access mechanism is considered as an effective solution to deal with multi services for its feature of shared bandwidth. However, the collision problem of ALOHA degrades the quality of service ( QoS ) seriously. The multi packet reception ( MPR ) technology could mitigate collision and improve network performance. Considering ALOHA mechanism with MPR capability, we pro-pose a novel random access scheme for aggregate traffic based on deep fusion of supermartingale and improved sparrow search algorithm ( SSA ) to provide delay QoS guarantee. Firstly, we construct a complicated queuing model with heterogeneous arrivals and ALOHA-type service. Secondly, we derive the tighter delay-violation probability bound relying on supermartingale theory, and the optimization problem is constructed with the goal of minimizing the service rate and the constraint of supermartin-gale bound. Finally, we improve the SSA by combining Circle chaotic map, nonlinear inertia weight and Lévy flight strategy, then the scheme is designed by applying the improved SSA and supermartingale constraint. Simulation results show that the proposed algorithm has faster convergence speed and the scheme is more bandwidth-saving.
. 随着通信场景的不断演变,网络业务呈现出多样性,这对资源的高效利用提出了很大的挑战。ALOHA访问机制以其带宽共享的特点被认为是处理多业务的有效解决方案。但是,ALOHA的碰撞问题严重降低了服务质量(QoS)。多包接收(MPR)技术可以减少网络冲突,提高网络性能。考虑到具有MPR能力的ALOHA机制,提出了一种基于上鞅深度融合和改进的麻雀搜索算法(SSA)的聚合流量随机接入方案,以提供时延QoS保证。首先,构造了具有异构到达和aloha类型服务的复杂排队模型。其次,利用超鞅理论推导出更严格的延误违例概率界,并以服务率最小和超鞅界约束为目标构造优化问题;最后,结合圆混沌映射、非线性惯性权值和lsamvy飞行策略对SSA进行改进,并将改进后的SSA与上鞅约束相结合进行方案设计。仿真结果表明,该算法具有更快的收敛速度和更大的带宽节省。
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引用次数: 0
Optimization of Bipolar Toeplitz Measurement Matrix Based on Cosine-Exponential Chaotic Map and Improved Abolghasemi Algorithm 基于余弦-指数混沌图和改进型 Abolghasemi 算法的双极 Toeplitz 测量矩阵优化
IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2023-12-01 DOI: 10.13164/re.2023.0583
S. Meng, C. Meng, C. Wang, Q. Wang
. In compressive sensing theory, the measurement matrix plays a crucial role in compressive observation of sparse signals. The bipolar Toeplitz measurement matrix constructed based on chaotic map has advantages such as generating fewer free elements and supporting fast algorithms, making it widely used. While optimizing the measurement matrix can effectively improve its compressive sensing reconstruction performance, existing optimization algorithms are not suitable for the bipolar Toeplitz measurement matrix due to its structural and bipolar properties. To address this issue, this paper proposes an optimization method for the bipolar Toeplitz measurement matrix based on cosine-exponential (CE) chaotic map sequences and an improved Abolghasemi algorithm. Using an enhanced CE chaotic map to generate chaotic sequences with greater chaos and randomness, we construct the measurement matrix and optimize it using the structure matrix and the improved Abolghasemi algorithm, which preserves the matrix's bipolarity without altering its structure. We also introduce constraints on the generated sequence values during the optimization process. Through simulation experiments, the effectiveness of our optimization algorithm is verified, as the optimized bipolar Toeplitz measurement matrix significantly reduces reconstruction error and improves reconstruction probability.
. 在压缩感知理论中,测量矩阵在稀疏信号的压缩观测中起着至关重要的作用。基于混沌映射构造的双极Toeplitz测量矩阵具有生成自由元素少、支持快速算法等优点,得到了广泛的应用。虽然对测量矩阵进行优化可以有效提高其压缩感知重构性能,但由于双极Toeplitz测量矩阵的结构和双极特性,现有的优化算法并不适用于双极Toeplitz测量矩阵。针对这一问题,本文提出了一种基于余弦指数混沌映射序列和改进Abolghasemi算法的双极Toeplitz测量矩阵优化方法。利用增强的CE混沌映射生成具有更大混沌性和随机性的混沌序列,构建测量矩阵并利用结构矩阵和改进的Abolghasemi算法对其进行优化,在不改变矩阵结构的前提下保持矩阵的双极性。在优化过程中,我们还引入了对生成序列值的约束。仿真实验验证了优化算法的有效性,优化后的双极Toeplitz测量矩阵显著降低了重构误差,提高了重构概率。
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引用次数: 0
Synchronization of Dissipative Nose–Hoover Systems: Circuit Implementation 耗散鼻-悬臂系统的同步:电路实现
IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2023-12-01 DOI: 10.13164/re.2023.0511
Rending Lu, Hayder Natiq, A. M. A. Ali, H. Abdolmohammadi, S. Jafari
. The synchronization of dynamical systems has been extensively studied across various scientific disciplines, including secure communication, providing insights into the collective behavior of complex systems. This paper investigated the synchronization of diffusively coupled dissipative Nosé-Hoover (DNH) systems analytically and experimentally. This system exhibits a variety of fascinating dynamical phenomena, including multistable or monostable chaotic solutions and attractive torus. The DNH circuit is implemented in OrCAD–PSpice, focusing on chaotic dynamics. The DNH system is thus said to be diffusively coupled by considering a passive resistor to link the corresponding states of two DNH circuits. The coupling scheme and strength (re-sistor value) under which two circuits can be synchronized are attained using the master stability function method and are then confirmed by computing the synchronization error. The correlation of coupled circuits’ outputs (time evolutions) demonstrates complete synchronization, which is consistent with the analytical and experimental results.
. 动力系统的同步已经在各个科学学科中得到了广泛的研究,包括安全通信,为复杂系统的集体行为提供了见解。本文对扩散耦合耗散nos - hoover (DNH)系统的同步进行了分析和实验研究。该系统表现出各种迷人的动力学现象,包括多稳定或单稳定混沌解和吸引环面。DNH电路在OrCAD-PSpice中实现,重点研究混沌动力学。因此,通过考虑一个无源电阻来连接两个DNH电路的相应状态,可以说DNH系统是扩散耦合的。采用主稳定函数法确定了两路可同步的耦合方案和强度(电阻值),并通过计算同步误差进行了验证。耦合电路输出的相关性(时间演化)显示完全同步,这与分析和实验结果一致。
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引用次数: 0
Energy-Efficient Path Construction for Data Gathering Using Mobile Data Collectors in Wireless Sensor Networks 利用无线传感器网络中的移动数据采集器为数据采集构建节能路径
IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2023-12-01 DOI: 10.13164/re.2023.0502
W. Jlassi, R. Haddad, R. Bouallegue
. Energy is seen as a significant factor in wireless sensor networks (WSNs). It is a challenge to balance be-tween battery lifetime of the different sensors and network lifetime. The main contribution of the proposed approach is to decrease the energy consumption of each sensor node, overcome unbalanced energy usage among sensor nodes, reduce the data gathering time and enhance the network life-time. To achieve these goals, we combine the Hierarchical Agglomerative algorithm and an optimal path selection method. First, the suitable cluster heads (CHs) are elected based on the Euclidean distance and the residual energy of each sensor node. Then, the base station is situated at the center of the field, which will be partitioned into equal sub-areas, one for every mobile data collector (MDC). Second, the Kruskal algorithm is used to create an optimal data gathering path from each subset of elected cluster heads. Finally, each mobile data collector travels the optimal path to collect the data from the set of cluster heads of each subarea and returns periodically to the base station to upload gathered data. Computer simulation proves that the proposed approach outperforms existing ones in terms of data gathering time, residual energy and network lifetime.
. 在无线传感器网络(WSNs)中,能量被视为一个重要的因素。如何平衡不同传感器的电池寿命和网络寿命是一个挑战。该方法的主要贡献在于降低每个传感器节点的能量消耗,克服传感器节点之间的能量使用不平衡,减少数据收集时间,提高网络寿命。为了实现这些目标,我们将分层聚类算法与最优路径选择方法相结合。首先,根据欧几里得距离和每个传感器节点的剩余能量选择合适的簇头(CHs);然后,基站位于场地的中心,场地将被划分为相等的子区域,每个移动数据采集器(MDC)一个子区域。其次,使用Kruskal算法从每个选出的簇头子集中创建最优数据收集路径。最后,每个移动数据采集器沿着最优路径从每个子区域的簇头集合中收集数据,并定期返回基站上传收集到的数据。计算机仿真结果表明,该方法在数据采集时间、剩余能量和网络寿命方面都优于现有方法。
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引用次数: 0
Lightweight Spectrum Prediction Based on Knowledge Distillation 基于知识蒸馏的轻量级频谱预测
IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2023-12-01 DOI: 10.13164/re.2023.0469
R. Cheng, J. Zhang, J. Deng, Y. Zhu
. To address the challenges of increasing complexity and larger number of training samples required for high-accuracy spectrum prediction, we propose a novel lightweight model, leveraging a temporal convolutional network (TCN) and knowledge distillation. First, the prediction accuracy of TCN is enhanced via a self-transfer method. Then, we design a two-branch network which can extract the spectrum features efficiently. By employing knowledge distillation, we transfer the knowledge from TCN to the two-branch network, resulting in improved accuracy for spectrum prediction of the lightweight network. Experimental results show that the proposed model can improve accuracy by 19.5% compared to the widely-used LSTM model with sufficient historical data and reduces 71.1% parameters to be trained. Furthermore, the prediction accuracy is improved by 17.9% compared to Gated Recurrent Units (GRU) in the scenarios with scarce historical data.
. 为了解决高精度频谱预测所需的日益复杂和大量训练样本的挑战,我们提出了一种新的轻量级模型,利用时间卷积网络(TCN)和知识蒸馏。首先,采用自传递方法提高TCN的预测精度。然后,我们设计了一个能有效提取频谱特征的双分支网络。通过知识蒸馏,我们将TCN中的知识转移到双分支网络中,从而提高了轻量级网络的频谱预测精度。实验结果表明,与历史数据充足的LSTM模型相比,该模型的准确率提高了19.5%,所需训练参数减少了71.1%。此外,在历史数据稀缺的情况下,与门控循环单元(GRU)相比,预测精度提高了17.9%。
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引用次数: 0
Coverless Steganography Based on Low Similarity Feature Selection in DCT Domain 基于 DCT 域低相似度特征选择的无掩码隐写术
IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2023-12-01 DOI: 10.13164/re.2023.0603
L. Tan, J. Liu, Y. Zhou, R. Chen
. Coverless image steganography typically extracts feature sequences from cover images to map information. Once the extracted features have high similarity, it is challenging to construct a complete mapping sequence set, which places a heavy burden on the underlying storage and computation. In order to improve database utilization while increasing the data-hiding capacity, we propose a coverless steganography model based on low-similarity feature selection in the DCT domain. A mapping algorithm is presented based on an 8000-dimensional feature termed CS-DCTR extracted from each image to convert into binary sequences. The high feature dimension leads to a high capacity, ranging from 8 to 25 bits per image. Furthermore, scrambling is employed for feature mapping before building an inverted index tree, considerably enhancing security against steganal-ysis. Experimental results show that CS-DCTR features exhibit high diversity, averaging 49.3% complete mapping sequences, which indicates lower similarity among CS-DCTR features. The technique also demonstrates resistance to normal operations and benign attacks. The information extraction accuracy rises to 96.7% on average under typical noise attacks. Moreover, our technique achieves excellent performance in terms of hiding capacity, image utilization, and transmission security.
. 无封面图像隐写通常是从封面图像中提取特征序列以获取地图信息。一旦提取的特征具有较高的相似性,构造一个完整的映射序列集是一个挑战,这给底层存储和计算带来了沉重的负担。为了在提高数据库利用率的同时增加数据隐藏能力,提出了一种基于DCT域中低相似度特征选择的无覆盖隐写模型。提出了一种基于从每张图像中提取的8000维特征CS-DCTR转换成二值序列的映射算法。高特征维度导致高容量,范围从8到25位每幅图像。此外,在构建倒排索引树之前,对特征映射进行置乱,大大提高了抗隐写分析的安全性。实验结果表明,CS-DCTR特征具有较高的多样性,平均完成映射序列为49.3%,表明CS-DCTR特征之间的相似性较低。该技术还显示出对正常操作和良性攻击的抵抗力。在典型噪声攻击下,信息提取准确率平均可达96.7%。此外,我们的技术在隐藏容量、图像利用率和传输安全性方面都取得了优异的性能。
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引用次数: 0
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Radioengineering
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