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相关概念视频

Vision01:24

Vision

60.1K
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
60.1K
Field Effect Transistor01:29

Field Effect Transistor

1.2K
Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
1.2K
Veins as Blood Reservoirs01:10

Veins as Blood Reservoirs

8.0K
Veins, while chiefly responsible for circulating blood back to the heart, also function as storage vessels for blood. They house approximately 64 percent of the body's total blood volume, a feat made possible by their high capacitance—the inherent ability to expand and accommodate large volumes of blood, even under low pressure. The large diameter and thin walls of veins augment their distensibility, significantly more so than arteries, due to their classification as capacitance...
8.0K
Color Vision01:24

Color Vision

1.5K
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
1.5K
Bipolar Junction Transistor01:22

Bipolar Junction Transistor

1.5K
Bipolar Junction Transistors (BJTs) are essential elements in electronic circuits, playing a crucial role in the functionality of amplifiers, memories, and microprocessors. These transistors can be designed as NPN or PNP based on their doping patterns. They consist of three layers: the emitter, base, and collector. The configuration of these layers and their respective doping levels—with N-type or P-type impurities—define the transistor's type and its operational...
1.5K
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

2.0K
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
2.0K

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相关实验视频

Updated: Feb 7, 2026

Fabrication of a Solution-gated Indium-Tin-Oxide-based One-piece Transistor Enabling Sensitive Biosensing
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Fabrication of a Solution-gated Indium-Tin-Oxide-based One-piece Transistor Enabling Sensitive Biosensing

Published on: August 29, 2025

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纳米层铁电晶体管 允许在传感器中宽储库 神经形态视觉视觉

Gwangmin An1, Seungjun Lee1,2, Hyeonho Lee1

  • 1Division of Electronics and Electrical Engineering, Dongguk University, Seoul, Republic of Korea.

Advanced materials (Deerfield Beach, Fla.)
|February 6, 2026
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种使用铁电晶体管用于混合水库计算的新硬件系统. 这种节能设备统一了内存功能,在复杂的模式识别任务中实现了高精度.

关键词:
电气和光学功能.铁电薄膜晶体管多个波长的多个波长.纳米拉米酸盐是一种纳米酸盐.突触器件是突触器件中的一个.广泛的储计算计算.

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A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
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Spray-Coated Melanin/PEDOT:PSS Films for Sustainable Organic Electrochemical Transistors
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相关实验视频

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10:45

Fabrication of a Solution-gated Indium-Tin-Oxide-based One-piece Transistor Enabling Sensitive Biosensing

Published on: August 29, 2025

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A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
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科学领域:

  • 神经形态工程的神经形态工程
  • 材料科学 材料科学 材料科学
  • 设备物理 设备物理

背景情况:

  • 储计算 (RC) 利用复杂的动态进行计算.
  • 铁电薄膜晶体管 (FeTFT) 提供了集成内存和处理的潜力.
  • 现有的系统往往缺乏统一的挥发性/非挥发性功能和能源效率.

研究的目的:

  • 使用单个FeTFT设备开发面向硬件的混合储计算 (HRC) 系统.
  • 为了实现双模式 (电/光) 操作,使用长期和短期内存.
  • 为了展示高性能,节能的神经形态计算.

主要方法:

  • 用于FeTFT的纳米层铁电门堆 (HZO/HfO2/HZO) 的制造.
  • 使用增量步骤脉冲与验证算法 (ISPVA) 进行精确的多级控制和线性权重更新.
  • 实现光驱动的4位储存器和波长依赖的储存器,以增强功能空间.

主要成果:

  • 实现了双模式操作,用于长期记忆的电输入和用于短期记忆的光学激发.
  • 在picoampere电流 (~10 pW/设备) 证明了低功率运行.
  • 在MNIST上达到93.1%的精度,在Fashion-MNIST上达到85.1%,超过了以前的FeTFT/memristor RC系统.

结论:

  • 开发的基于FeTFT的HRC系统为多功能内传感器神经形态计算提供了一个可扩展和节能的平台.
  • 在单个设备中统一的挥发性和非挥发性功能简化了硬件设计.
  • 这种方法为先进的低功耗人工智能硬件铺平了道路.