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Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Science & Technology & Economy is the property of Grain Science & Technology & Economy Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to improve the tracking performance of cognitive radar, this paper proposes a waveform selection algorithm for cognitive radar tracking assisted by amplitude information. Firstly, the framework of waveform parameter selection for cognitive radar tracking is discussed. Secondly, the performance of amplitude-assisted tracking probability data association is analyzed, and the method of waveform parameter selection is proposed. Finally, combined with the Interactive Multiple Model Unscented Kalman Filter(IMMUKF), an amplitude information assisted waveform selection algorithm for cognitive radar tracking is proposed. Simulation results show that the proposed algorithm can effectively improve the target tracking performance and reduce the probability of target tracking loss. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Hydrobiology is the property of Editorial Department of Journal of Hydrobiology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The study was to optimize the extraction process of polysaccharides from Hericium hericium residues by ultrasonic method. The effect of four factors (liquid to solid ratio, ultrasonic power, ultrasonic time and ultrasonic times) on the extraction rate of Hericium hericium residue were studied. The orthogonal analysis method was used to optimize the combination of production parameters, and the extraction rate of polysaccharides from Hericium hericium residue under the optimal process parameters was investigated, and the antioxidant activity in vitro was detected. The results showed that the order of factors affecting the extraction rate of polysaccharide from Hericium hericium residues was liquid to solid ratio > ultrasonic times > ultrasonic power > ultrasonic time. The optimal combination of extraction parameters was liquid to solid of 15 mL/g, ultrasonic power of 350 W, ultrasonic time of 15 min and ultrasonic times of 2. Under the condition of the process, Hericium hericium residues polysaccharides extraction yield of 8.85%. The in vitro antioxidant test showed that the scavenging rates of DPPH free radical, superoxide anion free radical and ABTS+ free radical were 88.03%, 67.42% and 97.83%, respectively, which had a certain antioxidant ability. The study indicates that the experimental results can provide reference for the optimization of production process and the development of feeding and utilization value of polysaccharides extracted from Hericium hericium residue. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Hydrobiology is the property of Editorial Department of Journal of Hydrobiology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to study the waveform selection of radar seeker in the terminal guidance and tracking phase, this paper proposes a waveform selection algorithm in the guidance and tracking process of cognitive radar seeker. Firstly, we establish the processing flow of radar seeker waveform selection by combining the seeker guidance and observation filtering models; Secondly, we use the interactive multiple model unscented Kalman filter (IMMUKF) algorithm to solve the nonlinear tracking problem. We minimize tracking error by searching for waveform parameters based on the maximum mutual information criterion. The simulation results show that the waveform selection algorithm can effectively improve the seeker tracking accuracy and provide stable guidance overload. [ABSTRACT FROM AUTHOR]

Copyright of Food Science & Technology & Economy is the property of Grain Science & Technology & Economy Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Industrial Minerals & Processing / Huagong Kuangwu yu Jiagong is the property of Industrial Minerals & Processing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

目的 探讨以患者为中心的优质护理干预在门诊手足口病患儿中的应用。方法 选取该院 2018 年 4 月至 2022 年 4 月门诊收治的手足口病患儿 100 例为研究对象,按照数字表法进行随机分组,分为对 照组及研究组,每组 50 例。对照组接受常规护理,研究组则接受以患者为中心的优质护理干预,对比两组护理 效果。结果 研究组患儿生活质量各维度评分均较对照组高,差异均有统计学意义 (P<0.05)。干预前,两组 患儿家属对手足口病知识掌握度评分、日常卫生保健行为实施情况比较,差异均无统计学意义 (P>0.05);干预 后,研究组患儿家属对手足口病知识掌握度各维度评分及总分、日常卫生保健行为各维度遵从率均较对照组 高,差异均有统计学意义 (P<0.05)。结论 对门诊手足口病患儿运用以患者为中心的优质护理干预,能有效 地改善患儿生活质量,提升患儿家属对手足口病知识掌握度,改善日常卫生保健行为,值得推广。 [ABSTRACT FROM AUTHOR]