共查询到19条相似文献,搜索用时 140 毫秒
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生物芯片是近十年来迅速发展起来的一种高通量生物信息检测和分析器件.微阵列生物芯片是一类发展较早、技术比较成熟、应用面较广的生物芯片,目前主要用于基因表达谱、基因突变和基因组多态性研究.随着现代生命科学和现代医学的快速发展,生物芯片的性能将会不断提高,应用范围不断扩大,芯片技术也将不断完善和发展.论文将围绕功能基因组研究及生物医学检测的实际需求,结合该实验室的研究工作,对于微阵列芯片的研究现状、面临的技术瓶颈以及未来可能的发展方向等进行讨论. 相似文献
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多智能体足球机器人系统的模型与层次 总被引:2,自引:0,他引:2
机器人足球是集成视觉技术、通讯技术、伺服控制技术、决策对象等多种技术的综合系统,是当前人工智能和机器人领域的研究热点之一。基于机器人足球理论基础的论述,分析了当前足球机器人系统的三种控制方式;按照智能程度的高低,研究了从动作层到决策层的功能,为系统实现构建了完整的层次框架。 相似文献
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机器人足球系统是一类典型的多移动机器人合作的对抗系统.具有实时性要求高、环境高度动态、存在不可预测状态等特点.机器人足球系统是人工智能和智能控制领域的探究热点之一。主要研究在仿真环境下基于三层控制决策模型的机器人足球决策系统.为单个或多个足球机器人分配任务和执行任务。使机器人决策系统具有较好的应激性和协调性,实现有效攻防.探讨多智能机器人实时合作与对抗问题、以求验证和发展人工智能的有关理论和技术。 相似文献
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拟人机器人视觉系统的硬件结构设计 总被引:2,自引:0,他引:2
拟人机器人是当前机器人研究领域中最新的研究方向,机器人视觉系统是其智能化最重要的标志之一。文章介绍了清华大学“985”重点科研项目“拟人机器人技术和应用系统”研究开发的拟人机器人TBIPR—I视觉系统的硬件结构组成和设计原理。 相似文献
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介绍了一种用于生物芯片血液蛋白自动检测仪的珀尔贴智能温控系统.该系统使用工控机作为控制平台,采用自整定PID控制算法,调节输出PWM波的占空比来控制珀尔贴制热器的输出功率实现生物芯片血液蛋白自动检测过程中的恒温控制.实验结果表明系统控制精度较高,能够满足应用要求. 相似文献
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《Advanced Robotics》2013,27(3-4):291-306
We discuss a design and fabrication approach to increase the success rate of single-cell dispensing. Two pairs of capacitance sensors are placed in a biochip to detect the flow velocity of cells and air pressure is applied to eject cells by synchronizing the timing. A comprehensive design theory, which takes into account the back-pressure caused by the air pressure, the response time of the system, the sensor properties and the delay of the dispensing from the air pressure, is developed in order to minimize the disturbance of the system and maximize the throughput of the ejection system. Then, the system theoretically has a capability to eject 3 cells/s and the maximum flow velocity is 10 mm/s. The novelty of the system is that the biochip is disposable, which is unlike the conventional mechanical inkjet system; because the biochip is low cost and disposable this prevents contamination and means the drive system is reusable. Finally, we succeeded in automatic dispensing of a single polystyrene bead (100 μm) from a biochip to a culture well atmosphere using the developed cell ejection system with a success rate of 50%. Furthermore, we also succeeded in single swine oocyte dispensing by using the developed system. 相似文献
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This paper presents a CMOS DNA detection biochip using an electrical detection method with self-assembly multilayer gold nanoparticles (AuNPs). Each measuring spot of this biochip consists of three major parts; a pair of electrodes with a nanogap, a current amplifier circuit, and a heater with an embedded temperature sensor. The biochip is first fabricated by a TSMC (Taiwan Semiconductor Manufacturing Company Ltd.) 0.35 μm 2P4M standard CMOS process. Then, post-CMOS micromachining etch processes are used to expose the surface of the nanogap to test samples for the establishment of multilayer AuNPs through hybridization between single strand DNAs in the samples. The gap distance between a pair of electrodes is 350 nm. Before taking DNA detection measurements, self-assembly monolayer AuNPs is established on the nanogap surface between two microelectrodes. Multilayer AuNPs can be observed if hybridization between single strand DNAs occurs. An approximately 1000-fold increase in electric current between the multilayer AuNPs over the monolayer AuNPs serves an indication of the presence of target DNA in test samples. After integrating the electrodes with an embedded current amplifier, the electric current of multilayer AuNPs is amplified to the order of mA that can be easily measured by a commercial Volt-Ohm-Milliammeter. The heating system with a heating element and a temperature sensor can be used to distinguish single base-pair mismatch hybridization from complementary hybridization for the establishment of multilayer AuNPs. The lowest detectable concentration of target DNA on this biochip is 0.1 nM. 相似文献
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一个装配机器人离线编程系统的设计与实现 总被引:1,自引:1,他引:0
机器人离线编程系统是机器人应用开发的有效工具。本文给出一个智能装配机器人离线编程系统ARPS。该系统提供了一个良好的机器人程序开发和调试环境。用户可采用交互方式建立机器人及环境模型,用操作手级的机器人语言ARL描述机器人作业,通过图形仿真调控机器人程序,目标程序与数据通过串行口下装到机器人控制器。 相似文献
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张玲 《计算机工程与科学》2021,43(7):1192-1199
微点阵生物芯片MEDA biochip将微电子和微流体结合,是最近出现的一种新型数字微流控芯片,它基于微点阵思想,每个微点阵单元都包含驱动电路和检测电路,从而实现对生化实验的实时监测。为减少外部引脚,MEDA芯片的所有微单元由菊花链串联,以实现对芯片的准确控制。作为MEDA芯片的关键数据通路,菊花链上即使只有一个单元发生故障,也会导致整条链失效,因此必须对菊花链进行有效的容错设计。为MEDA芯片设计了具有自测试和容错功能的菊花链结构,该结构由测试响应触发菊花链故障单元的自动容错。当菊花链的某个单元出现故障时,其测试响应产生异常,从而触发故障单元的自动修复,若修复失败,则异常的测试响应会再次触发该单元的旁路,从而实现自动容错。实验结果表明,该结构可以在测试和诊断故障的同时进行有效的容错,并在容错失败时将其永久旁路。 相似文献
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Takaaki Suzuki Yuji Teramura Hidetoshi Hata Koki Inokuma Isaku Kanno Hiroo Iwata Hidetoshi Kotera 《Microsystem Technologies》2007,13(8-10):1391-1396
Since most of miniaturized surface plasmon resonance (SPR) sensing systems need commercially available peristaltic or syringe pumps, it is difficult to reduce the system size, biosample volume, and the production cost. In this paper, a compact biochip for clinical diagnosis is presented. The proposed biochip is integrated traveling wave micropumps and SPR imaging sensors on one chip. The micropump is composed of flexible microchannel and piezoelectric bimorph actuator array, and achieved the maximum flow rate 336 μl/min. The SPR imaging biosensor can quantitatively measure biosamples with multi microchannels, i.e. one biosample and two reference flows to obtain an analytical curve. The SPR imaging measurements with bovine serum albumin solutions were carried out using the prototype of the proposed diagnostic system composed of a pair of the micropump and the sensor. Since the clear SPR signal curve was observed, it was confirmed that the proposed system can be applicable to the clinical diagnosis. 相似文献
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生物芯片在微小的基片上集成了成千上万个样点,每个样点对应一个基因或生物信息。因此,生物芯片图像分析的自动化在生物芯片软件系统中显得尤为重要.而生物芯片样点自动定位是实现生物芯片图像分析自动化的关键一步。本文提出并实现了一种生物芯片荧光图像样点自动定位的算法。运行结果表明,对于样点像素值明显比背景像素值大的样点,样点检测率可以达到95%以上,而且荧光图像的倾斜、荧光图像中大的污染块并不影响本程序的样点检测率。 相似文献