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Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering 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 Storage & Process is the property of Tianjin Academy of Agricultural Sciences 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.)

进化集成学习结合了集成学习和进化算法两方面的优势，并在机器学习、数据挖掘和模式识别等领域被广泛应用。首先对进化集成学习算法的理论基础、组成结构及分类情况进行了概述。然后根据进化算法在集成学习中的优化任务，从样本选择、特征选择、集成模型参数组合优化、集成模型结构优化以及集成模型融合策略优化几个方面对当前进化集成学习领域的一些代表性研究成果进行了详细的综述，并分析和总结了各种进化集成学习算法的特点。最后对现有的进化集成研究的优缺点进行探讨，并给出了未来的研究方向。

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Objectives: The space-borne visual and infrared multispectral sensor (VIMS) can simultaneously detect multiple spectral bands in the visible, near-infrared, short-wave infrared, medium-wave infrared, and long-wave infrared spectral ranges, which plays an important role in thermal pollution emission detection and crop growth analysis. However, when light passes through the atmosphere, it is affected by atmospheric refraction, which causes different degrees of deflection in different spectral bands. It influences the geometric positioning accuracy of the image and the registration accuracy between the spectral bands, which affects the application of VIMS image. Methods: With VIMS of Gaofen5 (GF5), the optical satellite atmospheric refractive correction model based on the measured atmospheric parameters is used to analyze the influence of atmospheric refraction on the geometric accuracy of different bands in different regions and at different times. Results: The experimental results show that when the view angle is 45°, the absolute geometric positioning error of the blue band caused by atmospheric refraction is about 6.491 m, and the relative geometric positioning error is about 2.698 m. The registration accuracy between the blue band and the long-wave infrared band spectrum can reach 0.161 m. Conclusions: This research can provide important support for the data processing of VIMS with higher space resolution. [ABSTRACT FROM AUTHOR]

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Objective To investigate the situation and risk factors of hypertensive retinopathy in Zhangjiakou city. Methods The residents from 19 counties and districts in Zhangjiakou were screened for hypertension and blood glucose level. Blood pressure, age, gender, course of disease, body mass index (BMI) and complications of the patients were collected by a questionnaire survey. The prevalence of hypertensive retinopathy was analyzed and the risk factors affecting the patients were analyzed. Results A total of 1 320 hypertension patients were found in 8 056 residents with prevalence rate as 16.39% (1 320/8 056) and 212 of the hypertensive patients were found to have retinopathy.The prevalence rate of retinopathy was 13.06% (212/1 320) in hypertensive patients and 2.63% in all the examined residents. The proportion of patients aged ≥60 was higher than that of patients aged＜60 years old, the proportion of patients without hypertension treatment history was higher than that of patients with hypertension treatment history (P＜0.05). The disease course, systolic blood pressure, diastolic blood pressure, diabetes and smoking history in the patient group were higher than those in the control group(P＜0.05). Long hypertension course of disease, high systolic and diastolic blood pressure and diabetes history were risk factors for the occurrence of hypertensive retinopathy (P＜0.05). Conclusions The incidence hypertensive retinopathy in 19 counties and districts of Zhangjiakou city is low but is high among residents aged ≥60 years. The risk factors are long course of disease, high systolic and diastolic blood pressure and diabetes history. [ABSTRACT FROM AUTHOR]

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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 Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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.)

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Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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.)

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Copyright of China Brewing is the property of China Brewing 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.)

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Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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 Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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.)

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Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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.)