In this article, we present a spiking neural network (SNN) based on both SRAM processing-in-memory (PIM) macro and on-chip unsupervised learning with Spike-Time-Dependent Plasticity (STDP). Co-design of algorithm hardware for hardware-friendly SNN efficient STDP-based methodology is used to improve area energy efficiency. The proposed utilizes charge sharing capacitors perform fully parallel Reconfigurable Multi-bit PIM Multiply-Accumulate (RMPMA) operations. A thermometer-coded Programmable...

Capillary-gradient wicks can achieve fast or directional liquid transport, but they face fabrication challenges by traditional methods in terms of precise patterns. Laser processing is a potential solution due to its high pattern accuracy, there are few studies on laser-processed capillary-gradient wicks. In this paper, capillary step-gradient micro-grooved (CSMWs) were fabricated an ultraviolet nanosecond pulsed laser, and their performance was studied experimentally. The CSMWs could be...

Epilepsy is a serious neurological condition caused by sudden abnormality of brain neurons. An accurate epilepsy detection based on electroencephalogram (EEG) signals can provide vital information for diagnosis and treatment. In this study, we propose lightweight automatic system with artificial neural network our as-fabricated neuromorphic chip. The proposed utilizes model to achieve high-accuracy without the need epilepsy-related prior knowledge. uses filter module convolutional preprocess...

In this work, we design and implement a 1-Mb resistive random access memory (RRAM) processing-in-memory (PIM) chip based on 180-nm CMOS technology. design, time-division multiplexing (TDM) circuit along with sparsity-aware sense amplifier (SA) asynchronous counter module (ACM) are proposed to free the from digital-to-analog converter (DAC) analog-to-digital (ADC). A input (SAIM) is designed improve computational efficiency for bit-level sparsity detection. technique quantization-aware...

A compact E plane of 10 dB rectangular waveguide directional coupler with different lengths branch operating at the center frequency 340 GHz is presented. The fabricated using micro-fabrication technology deep reactive ion etching (DRIE). S-parameter measured by two-port vector network analyzer and result consistent that simulation, which indicates isolation better than 30 dB, return loss greater 15 best insertion 2.9 within 330~350 GHz. With simple, structure superior performance, provides...

If the speed of electron beam excited Surface Plasmon Polaritons (SPPs) exceeds velocity light in medium, Cherenkov radiation will be emitted. Here, on this important physical phenomenon, Polariton Light Radiation Source (SPCLS), quantum theory has been worked out. By theory, average field amplitude SPCLS is obtained. The calculation results show that can explain classical phenomena precisely and predict nonclassical excitation channels photons are based nature electromagnetic effect SPPs....

Abstract This work proposes a storage element (SE) design for in‐memory computing (IMC). Using the proposed SE design, an IMC array has been constructed to enable in‐situ updates of stored weights. Compared with some existing related works which employ 2 n bit cells storing n‐bit value, structure in this exhibits O(n) complexity area overhead, means that only are needed store values, offering significant improvement silicon usage. purely digitally‐controlled weight update schemes, approach...

This study focuses on improving the accuracy of lung cancer subtype classification by integrating machine learning feature selection with a deep model, namely, Multi-Layer Perceptron (MLP). Using gene expression data from TCGA database, we employed threshold variance and chi-square test selection, normalized selected features using z-score normalization, finally applied MLP for classification. Through comparisons traditional models such as KNN, SVM, Random Forest, comprehensively examined...

The dispersion equation and interaction impedance of the ridge-loaded ring-plane slow-wave structure are obtained, by application Ritz–Galerkin method. Numerical results given in terms k – vp curves diagrams. influence several geometrical dimensions on characteristic discussed. This kind circuit can operate at a high power level over relatively wide microwave-frequency range. To get higher broader bandwidth for this optimum opening angle smaller radius loaded ridge must be chosen. paper...

Background: Moisture content is one of the most important indicators for quality fresh strawberries. Currently, several methods are usually employed to detect moisture in strawberry. However, these relatively simple and can only be used single samples but not batches samples. Besides, integrity may destroyed. Therefore, it develop a efficient prediction method strawberry facilitate market circulation Objective: This study aims establish novel BP neural network model predict analyze moisture....

WR-1.0 rectangular waveguide cavity band-pass filter based on micromachining technique is designed in this letter. The consists of two resonant cavities. A transmission zero implemented by means broaden stubs. stub to the width cavity, which simplify fabrication. proposed fabricated using deep reactive ion etching (DRIE) silicon wafers, with sputtered gold inner and outer surface metallization. Using Ansoft HFSS, center frequency 0.9THz at 0.921THz. structure a viable option for designs...

A computing in-memory architecture based on 22nm Fully Depleted Silicon On Insulator (FD-SOI) device is presented. By using FD-SOI devices, logic operations such as "and" "nor" or " x Access Memory (SRAM) through the effect of body biasing in $22\mathrm{~nm}$ technology. The proposed contains six modules: SRAM-based Computing InMemory module, Data Buffer Pulse Generation pre-charge AdditionActivation-Binarization module and System Controller module. Complex ADC DAC circuits are not involved...

Logic-in-memory (LIM) is an attractive approach to overcome the limitations of conventional von Neumann architecture, especially in big data applications. Recently, many works have been focused on implementing Boolean logic or majority gate memory using non-volatile storage devices. This work presents a programmable logic-in-memory (PLIM) architecture based 22nm Fully Depleted Silicon Insulator (FD-SOI) technology, which can map XOR, AND, and OR operations. Additionally, be independently...

An all-optical power equalization based on nonlinear polarization rotation in a single semiconductor optical amplifier (SOA) is proposed for waveform distortion reduction. Simulations have been done the degraded data signals to demonstrate feasibility of scheme. The primarily simulated results indicated that switching less than 10 mW. mentioned this paper has promoting potential improve signal quality and needs low power. Our approach simple configuration allows photonic integration, which...

All-optical sampling attracts considerable attention due to its crucial applications in high-speed optical analog-to-digital conversion. We present an all-optical scheme using a single semiconductor amplifier. In the experiment, 40 GSa/s for 2.5 GHz analog signal is successfully demonstrated with commercially available fiber-pigtailed components. The shows fundamental conversion efficiency of 1.35 and total harmonic distortion 2.01% at operating power 5 mW. Our requires only one amplifier...

A scheme for improving the self-induced polarization rotation (SPR) in a semiconductor optical amplifier (SOA) based on holding beam injection is proposed. Gain recovery of TE and TM modes can be largely accelerated through an appropriate injection, with which response SPR SOA ultrafast signal speeded up. Holding employed SPR-based power equalization as example validation, distortion RZ (return-to-zero)and overshoot NRZ (non-return-to-zero) are suppressed, extension ratio improved by 10 dB 7...

Abstract Braille system is world widely used for visually impaired people communication. However, there are still some who not able to learn due various factors, such as the age (too young or too old), damage of brain, etc. A wearable and low-cost recognition may substantially help these recognize assist them in learning. In this work, we fabricated polydimethylsiloxane (PDMS)-based flexible pressure sensors construct an electronic skin (E-skin) application recognition. The E-skin mimics...