共查询到19条相似文献,搜索用时 171 毫秒
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本文简述了现代高科技的有关背景与生物医学电子学的关系,重点介绍了生物医学电子学两个方面的研究内容,即运用电子信息科学的方法解决生物医学中的问题和现代生物医学成果促进电子信息科学的发展,最后展望了生物医学电子学的发展方向。 相似文献
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本文在讨论硅微电子技术发展限制基础上,提出了一个在今后30年内应该引起高度重视的“复合功能电子学”的概念,内容及其实例。 相似文献
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本文从电子技术的发展趋势、模拟电子线路课程改革的需要,以及科研实践经验体会,阐述了当前电子线路课程内容的现状,指出了课程改革的必要性;文章介绍了一本电子线路课程补充教材的章节结构和内容体系上的改革.该教材采用Ebers-moll模型、负反馈放大器灵敏度、摆率、满功率带宽概念这样的改革实例. 相似文献
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Laiming Jiang Yang Yang Ruimin Chen Gengxi Lu Runze Li Jie Xing K. Kirk Shung Mark S. Humayun Jianguo Zhu Yong Chen Qifa Zhou 《Advanced functional materials》2019,29(33)
Retinal electrical stimulation for people with neurodegenerative diseases has shown to be feasible for direct excitation of neurons as a means of restoring vision. In this work, a new electrical stimulation strategy is proposed using ultrasound‐driven wireless energy harvesting technology to convert acoustic energy to electricity through the piezoelectric effect. The design, fabrication, and performance of a millimeter‐scale flexible ultrasound patch that utilizes an environment‐friendly lead‐free piezocomposite are described. A modified dice‐and‐fill technique is used to manufacture the microstructure of the piezocomposite and to generate improved electrical and acoustic properties. The as‐developed device can be attached on a complex surface and be driven by ultrasound to produce adjustable electrical outputs, reaching a maximum output power of 45 mW cm?2. Potential applications for charging energy storage devices and powering commercial electronics using the device are demonstrated. The considerable current signals (e.g., current >72 µA and current density >9.2 nA µm?2) that are higher than the average thresholds of retinal stimulation are also obtained in the ex vivo experiment of an implanted environment, showing great potential to be integrated on implanted biomedical devices for electrical stimulation application. 相似文献
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电力电子技术的关键知识点很多,电力电子技术的研究对象是功率处理和变换,电力电子技术离不开表征电能的电压、电流、频率、波形和相位等若干基本参数的控制与转换,快速傅里叶变换(简称FFT)是电工电子中计算离散傅里叶变换的一种重要的计算公式,提出了一种计算算法,频域分析的编程中以FFT算法为基础,在对时域波形进行采样后,经过FFT处理离散数据,最终得到相关量的振幅谱,并且对算法编程实现,仿真试验达到预期目的. 相似文献
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随着科学技术的飞速发展,现有的电力电子技术实验装置已经不能适应社会发展的要求。结合实验教学改革,对研发既能体现新的控制技术和科研成果,又能很好地满足关键知识点验证的实验项目,进行了有效的尝试。在此主要介绍研发本实验装置的背景,叙述了斩控式交流调压电路的结构,并阐述了实验装置的设计构想和设计结果。 相似文献
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张天明 《信息技术与信息化》2002,(3):13-14
装置技术为适应电子市场的需求而发展 ,纳米硅电子技术伴随着电子信息产业的发展应运而生 ;本文综述了纳米硅电子技术的产生、现状及未来的发展趋势 ;并分析了纳米硅电子技术与信息产业发展的关系 相似文献
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Giuseppe Cantarella Mallikarjun Madagalam Ignacio Merino Christian Ebner Manuela Ciocca Andrea Polo Pietro Ibba Paolo Bettotti Ahmad Mukhtar Bajramshahe Shkodra AKM Sarwar Inam Alexander J. Johnson Arash Pouryazdan Matteo Paganini Raphael Tiziani Tanja Mimmo Stefano Cesco Niko Münzenrieder Luisa Petti Nitzan Cohen Paolo Lugli 《Advanced functional materials》2023,33(17):2210422
The growing usage and consumption of electronics-integrated items into the daily routine has raised concerns on the disposal and proper recycling of these components. Here, a fully sustainable and green technology for the fabrication of different electronics on fruit-waste derived paper substrate, is reported. The process relies on the carbonization of the topmost surface of different cellulose-based substrates, derived from apple-, kiwi-, and grape-based processes, by a CO2 laser. By optimizing the lasing parameters, electronic devices, such as capacitors, biosensors, and electrodes for food monitoring as well as heart and respiration activity analysis, are realized. Biocompatibility tests on fruit-based cellulose reveal no shortcoming for on-skin applications. The employment of such natural and plastic-free substrate allows twofold strategies for electronics recycling. As a first approach, device dissolution is achieved at room temperature within 40 days, revealing transient behavior in natural solution and leaving no harmful residuals. Alternatively, the cellulose-based electronics is reintroduced in nature, as possible support for plant seeding and growth or even soil amendment. These results demonstrate the realization of green, low-cost and circular electronics, with possible applications in smart agriculture and the Internet-of-Thing, with no waste creation and zero or even positive impact on the ecosystem. 相似文献
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军事电子装备系统已经深入现代高科技战争的各个领域,在现代装备中的作用日趋重要。其研制生产对军事电子制造技术提出了更高的标准和要求。文中分析了军事电子装备发展对先进制造技术的需求,概括总结了国内外军事电子制造技术的现状和发展趋势,提出了我国军事电子先进制造技术的发展方向与研究重点及战略对策。 相似文献