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Copyright of Journal of the Beijing Institute of Fashion Technology (Natural Science Edition) is the property of Beijing Institute of Fashion Technology 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.)

Most of the deep-learning based dehazing models have fixed receptive filed after the parameter are fixed. As a result, the dehazing network cannot adopt the optimal mode for dehazing each specific scene, resulting in ambiguity and distortion in the results. In view of these problems, this study proposes a dynamic receptive field feature selection dehazing network. A feature-attention atrous block with atrous convolution is designed as the basic module of the network. Multiple feature attention atrous blocks with different atrous rates are used in parallel to extract multi-scale features. Dynamic feature fusion is performed on these features to form a dynamic receptive field block. Multiple dynamic receptive field blocks are combined with residual connections to form a deep network. The features from different levels are dynamically mixed and decoded to obtain a haze-free image. The experimental results show that the proposed algorithm has a good dehazing performance on indoor, outdoor, and real hazy images, and can generate clear and natural dehazing images. [ABSTRACT FROM AUTHOR]

Facing the problems of adhesion of adjacent parcels and incomplete parcels due to the high heterogeneity and the small region among neighbor parcels, a farmland parcel extraction network based on multi-scale semantic information enhancement is proposed in this study. To alleviate the adhesion between parcels, the multi-scale feature extraction module with parallel structure is used, which retained the high-resolution feature maps to maintain high-precision edge information and reduce the loss of spatial location information due to down sampling. Furthermore, to reduce the phenomenon of incomplete parcels, the global semantic information enhancement module based on attentional mechanism is utilized to enhance the classification ability of the network by capture global semantic information instead of local semantic information. According to the experimental results, it is shown that the proposed method is 1%~13% better than the four typical algorithms in existing studies in terms of IoU, OA, and F1-score evaluation indexes. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science 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 Electronic Science & Technology is the property of Electronic Science & Technology 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 Feed Research is the property of Editorial Board of Feed Research 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 Feed Research is the property of Editorial Board of Feed Research 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.)

Objectives: The middle and lower reaches of the Yangtze River, including Hubei, Hunan, Jiangxi, Anhui, Jiangsu, Zhejiang and Shanghai, are important planting bases of commercial grain in China. However, at present, there are relatively few studies on agricultural drought in this region, and there is a lack of attention to the response of land cover types to drought. Moreover, in the context of climate change, the evolution and trend of agricultural drought in the middle and lower reaches of the Yangtze River need further discussion. Methods: This study used MODIS (moderate resolution imaging spectroradiometer) V6 products to construct vegetation condition index (VCI), temperature condition index (TCI) and vegetation health index (VHI) to monitor the temporal and spatial evolution of agricultural drought in the middle and lower reaches of the Yangtze River from 2001 to 2019, and further explored the drought sensitivity of different vegetative types. Based on the concept of climate change, this study analyzed the drought trends in six provinces and one city in the middle and lower reaches of the Yangtze River. The results of the above three indices were further evaluated by standardized precipitation index (SPI) on different time scales, obtained and calculated from the CHIRPS V2.0 dataset. Results: The results show that the VCI and TCI could monitor the long-term abnormal vegetation growth and heat anomalies, respectively, but neither index could provide comprehensive overview of drought conditions. Combining the advantages of both indices with the weights of 0.7 and 0.3 for VCI and TCI, respectively, the VHI, was more effective in agricultural drought monitoring in the middle and lower reaches of the Yangtze River. Different vegetation showed different drought sensitivity in study. Crops have the highest sensitivity to drought, forests are the lowest, and grasslands are somewhere in between. In the context of climate change, Jiangxi, Hunan, Hubei, Zhejiang, and Anhui show an intense wet trend in the past 20 years, while the Jiangsu and Shanghai show a weak wet trend . Conclusions: Drought indices should be integrated to provide comprehensive evaluation of agricultural drought in the middle and lower reaches of the Yangtze River. Jiangsu province and Shanghai city are still at drought risk due to the weak wet trend and the local agricultural department should take drought mitigation measures to prevent economic losses. In the middle and lower reaches of the Yangtze River, croplands have the most obvious response to drought, indicating that crops are most sensitive to drought than grasses and forests, more attention should be paid to agriculture management. The relevant results can provide reference for the early warning of drought in various provinces and cities in the middle and lower reaches of the Yangtze River and help the management of regional agricultural production. [ABSTRACT FROM AUTHOR]

目的 探讨消化道肿瘤性病变内镜切除后创面荷包缝合的护理方法,旨在解决消化道肿瘤性病变内镜切除后创面使用荷包缝合护理配合所存在的不足。方法 收集遵义市播州区人民医院消化内科 2018 年 3 月至 2020 年 11 月收治的消化道肿瘤性病变内镜下切除后创面荷包缝合患者47 例的病例资料,其中未采用圈套器辅助、释放器手柄固定荷包缝合 21 例（对照组）,采用圈套器辅助、释放器手柄固定荷包缝合 26 例（研究组）。对术中存在的问题进行综合分析。结果 对照组患者中发生释放器外鞘管打折 10 例（47.62%）,尼龙绳脱钩7例（33.33%）,组织夹倒伏荷包内 13 例（61.90%）;研究组患者中发生释放器外鞘管打折、尼龙绳脱钩、组织夹倒伏荷包内均为 0 例。研究组患者发生外鞘管打折、尼龙绳脱钩、组织夹倒伏荷包内比例均明显低于对照组,差异均有统计学意义（P<0.05）。结论 消化道肿瘤性病变内镜切除后创面改良荷包缝合能避免释放器外鞘管打折、尼龙绳脱钩、组织夹倒伏荷包内,既缩短了缝合时间,又降低了麻醉风险,提高了手术成功率。 [ABSTRACT FROM AUTHOR]

Copyright of Journal of Modern Laboratory Medicine is the property of Journal of Modern Laboratory Medicine 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.)

HSIs are often contaminated by various types of noise，which degrades tlie quality of tlie acquired im¬age and limits the subsequent application. Furthermore，the noise of HSI appears different statics and intensity in dif¬ferent bands. In this paper，a spectral weighted &W - rank approximation model was proposed for hypersjDectral image denoising. The spectral weighted matrix was introduced to balance the data fidelity of the different bands in consider- tion of their different noise intensity. To furtlier separate the noise from the clean image，weighted nuclear norm mini¬mization was utilized to depict tlie patch - wise low - rank structure of tlie high dimensional HSI. The proposed model was formulated into a linear equality - constrained problem and solved by alternating direction method of multipliers. Experimental results on both simulated and real HSI datasets validated the effectiveness and superiority of the proposed method. [ABSTRACT FROM AUTHOR]

目的:讨论血液透析护理管理中风险管理的应用价值.方法:从我院２０１３年１月~２０１５年６月收治的行血液透析治疗的患者中随机 抽取８６例进行研究,病根据其入院顺序随机分为对照组(４３例,行常规护理管理)和观察组(４３例,行风险护理管理),对比两组护理满意度和 风险事故发生率.结果:经比较,对照组的护理满意度为７２．０９％,明显低于观察组的９７．６７％;风险事故的发生率为３０．２３％,明显高观察组的 ９．３０％,组间两项指标差异均存在显著差异(P ＜０．０５).结论:血液透析护理管理中应用风险管理可以明显提高护理满意度,降低风险事故的 发生率,和常规护理管理比较,具有更高的临床应用价值. [ABSTRACT FROM AUTHOR]

目的:探讨临床护理路径在小儿腹泻护理中的应用价值.方法:选取我院收治的９０例腹泻患儿的临床资料,病例收集时间在２０１３年 ２月至２０１５年２月间,将患儿随机分为两组,每组各有患儿４５例.对照组实施常规护理,观察组根据临床护理路径实施护理干预,比较两组患 儿的住院治疗时间、家属满意度.结果:①观察组的住院治疗时间为(４．４９±１．４２)天,对照组的住院治疗时间为(９．５３±２．１７)天,对比有统计学 意义(P ＜０．０５).②观察组患儿家属满意度为９７．７８％,对照组患儿家属满意度为８０．００％,对比有统计学意义(P ＜０．０５).临床路径护理干预 在小儿腹泻的护理工作中具有较高的应用价值,可以提高患儿家属满意度,将患儿住院治疗时间缩短,促使其病情尽快改善,值得临床推广应用. [ABSTRACT FROM AUTHOR]