Mapping and determination of the cDNA sequence of the Erc gene preferentially expressed in renal cell carcinoma in the Tsc2 gene mutant (Eker) rat model
Mapping and determination of the cDNA sequence of the Erc gene preferentially expressed in renal cell carcinoma in the Tsc2 gene mutant (Eker) rat model
复制标题
Tsc2基因突变(Eker)大鼠模型肾细胞癌中优先表达的Erc基因cDNA序列的定位和测定
DOI：
10.1016/j.jrmge.2022.06.005
复制
发表时间：
2001
影响因子：
7.3
通讯作者：
山下 与企彦
中科院分区：
文献类型：
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作者：
山下 与企彦
地下物联网（IOUT）是一个新兴领域，涉及连接的地下传感节点，可以在岩土工程、精准农业和搜索救援行动等各个领域找到应用。地下环境的复杂性和土壤的多相性对地下无线通信提出了挑战。现有的大多数地下无线通信的研究集中在使用电磁波。然而，作为电磁波的高损耗材料，土壤会限制数据传输的范围和可靠性。受依赖振动或地震波进行地下通信的地下动物的启发，本研究中开发的原型系统基于振动。该系统包括一个生物启发的振动源，微机电系统（MEMS）加速度计，微控制器，和一组算法的编码和解码信息。具体来说，鼹鼠启发的源尺寸小，成本低，节能。一个开关键控解码算法增强纠错算法被发现是强大的，在传输文本和虚构的信息。采用目前的设计，可以实现每秒16-17比特的最大传输比特率和80厘米的传输距离。误码率低至0.1%，证明了算法的鲁棒性。所开发的系统的性能表明，振动产生的地震波可以用作信息载体，并且可以在IoUT中实现。
The internet of the underground things (IoUT) is an emerging field that concerns connected underground sensing nodes and can find applications in various fields such as geotechnical engineering, precision agriculture, and search and rescue operations. The complex underground environment and multiphase nature of the soil pose challenges to wireless underground communication. Most existing studies on wireless underground communication focus on the use of electromagnetic waves. However, as a highly lossy material for electromagnetic waves, soil can limit the range and reliability of data transmission. Inspired by subterranean animals that rely on vibrations or seismic waves for underground communication, the prototype system developed in this study is based on vibration. This system includes a bio-inspired vibrating source, a micro-electromechanical system (MEMS) accelerometer, a micro-controller, and a set of algorithms for encoding and decoding information. Specifically, the mole rats-inspired source is small in size, low in cost, and energy-efficient. An on-off-keying decoding algorithm enhanced with an error-correction algorithm is found to be robust in transmitting textual and imaginary information. With the current design, a maximum transmission bit rate of 16–17 bits per second and a transmission distance of 80 cm can be achieved. The bit error ratio is as low as 0.1%, demonstrating the robustness of the algorithms. The performance of the developed system shows that seismic waves produced by vibration can be used as an information carrier and can potentially be implemented in the IoUT.