根据水产品无水低温保活运输监测需求,设计了可植入式血糖传感器及信号处理电路,以实时获取血糖传感信号,信号经过软件滤波进行去噪和平滑处理后,构建了血糖变化的时序预测模型;以鲟鱼作为实验对象,对所提出的方法进行了实验验证。结果...根据水产品无水低温保活运输监测需求,设计了可植入式血糖传感器及信号处理电路,以实时获取血糖传感信号,信号经过软件滤波进行去噪和平滑处理后,构建了血糖变化的时序预测模型;以鲟鱼作为实验对象,对所提出的方法进行了实验验证。结果表明:所设计的可植入式血糖传感器能在鲟鱼体内对血糖信号进行稳定的采集,传感器信号经过信号调理电路后输出拟合程度达到0.960 8,电路灵敏度为27.047 m V/n A,零点漂移量为722.83 m V;所构建的血糖信号自回归移动平均模型(ARIMR)预测值与真实值之间的平均绝对误差为-0.014 mmol/L,平均相对误差为-0.117%,预测精度和平滑度较其他模型具有优势。该信号监测方法对于提高水产品无水低温保活全程透明度和追溯性,并推断水产品生命体及营养物质变化具有重要参考价值。展开更多
The pollen of two tomato varieties, Ryau961721 and Ryau9327D, was adopted in our research. The two tomato varieties were bred by College of Land- scape and Horticulture, Yunnan Agricultural University. The collected p...The pollen of two tomato varieties, Ryau961721 and Ryau9327D, was adopted in our research. The two tomato varieties were bred by College of Land- scape and Horticulture, Yunnan Agricultural University. The collected pollen was stored in low-temperature （4 ℃） and ultra-low-temperature （-196 ℃） circumstances. Then it was inoculated to the medium and cultured at 28 ℃ in thermostat incubator. The pollen viability was determined by electron microscope. The results showed that compared to that of pollen stored in control （25 ℃） circumstance, the viability of pollen stored in low-temperature （4 ℃） and ultra-low-temperature （-196 ℃） circum- stances for 1 -3 d did not change significantly. In addition, pollen viability trended to decrease with the increase of freeze-thaw cycle and storage time. The pollen lost basically the viability by the 7th d in the storage.展开更多
文摘根据水产品无水低温保活运输监测需求,设计了可植入式血糖传感器及信号处理电路,以实时获取血糖传感信号,信号经过软件滤波进行去噪和平滑处理后,构建了血糖变化的时序预测模型;以鲟鱼作为实验对象,对所提出的方法进行了实验验证。结果表明:所设计的可植入式血糖传感器能在鲟鱼体内对血糖信号进行稳定的采集,传感器信号经过信号调理电路后输出拟合程度达到0.960 8,电路灵敏度为27.047 m V/n A,零点漂移量为722.83 m V;所构建的血糖信号自回归移动平均模型(ARIMR)预测值与真实值之间的平均绝对误差为-0.014 mmol/L,平均相对误差为-0.117%,预测精度和平滑度较其他模型具有优势。该信号监测方法对于提高水产品无水低温保活全程透明度和追溯性,并推断水产品生命体及营养物质变化具有重要参考价值。
基金Supported by College Students’Technology Innovation and Entrepreneurship Action Fund of Yunnan Agricultural University(2014ZKX048)~~
文摘The pollen of two tomato varieties, Ryau961721 and Ryau9327D, was adopted in our research. The two tomato varieties were bred by College of Land- scape and Horticulture, Yunnan Agricultural University. The collected pollen was stored in low-temperature （4 ℃） and ultra-low-temperature （-196 ℃） circumstances. Then it was inoculated to the medium and cultured at 28 ℃ in thermostat incubator. The pollen viability was determined by electron microscope. The results showed that compared to that of pollen stored in control （25 ℃） circumstance, the viability of pollen stored in low-temperature （4 ℃） and ultra-low-temperature （-196 ℃） circum- stances for 1 -3 d did not change significantly. In addition, pollen viability trended to decrease with the increase of freeze-thaw cycle and storage time. The pollen lost basically the viability by the 7th d in the storage.
