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Statement on Establishment of Public Health Protection Guideline for Cold Spells—China
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作者 Tiantian Li Qinghua Sun +13 位作者 Chen Chen Qing Wang Jie Ban Runmei Ma Yi zhang Lijun Pan Yuanyuan Liu Qiutong Li Leyao Chang hanshuo zhang Yirong Liu Miaoyou Niu Xiangxiang Wei Lin Wang 《China CDC weekly》 SCIE CSCD 2024年第5期92-94,共3页
Cold spells are extreme weather events characterized by the invasion of cold air from high latitudes into the middle and low latitudes,resulting in significant cooling.Cold spells have various adverse health effects,i... Cold spells are extreme weather events characterized by the invasion of cold air from high latitudes into the middle and low latitudes,resulting in significant cooling.Cold spells have various adverse health effects,including epidermal damage,respiratory tract spasms,respiratory immune abnormalities,acute cardiopulmonary diseases,and exacerbation of urinary and endocrine disorders.In response to the frequent cold spells in recent years. 展开更多
关键词 RESPIRATORY INVASION ACUTE
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Virtual electromagnetic environment modeling based data augmentation for drone signal identification 被引量:1
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作者 hanshuo zhang Tao Li +1 位作者 Yongzhao Li Zhijin Wen 《Journal of Information and Intelligence》 2023年第4期308-320,共13页
Radio frequency(RF)-based drone identification technologies have the advantages of long effective distances and low environmental dependence,which has become indispensable for drone surveillance systems.However,since ... Radio frequency(RF)-based drone identification technologies have the advantages of long effective distances and low environmental dependence,which has become indispensable for drone surveillance systems.However,since drones operate in unlicensed frequency bands,a large number of co-frequency devices exist in these bands,which brings a great challenge to traditional signal identification methods.Deep learning techniques provide a new approach to complete endto-end signal identification by directly learning the distribution of RF data.In such scenarios,due to the complexity and high dynamics of the electromagnetic environments,a massive amount of data that can reflect the various propagation conditions of drone signals is necessary for a robust neural network(NN)for identifying drones.In reality,signal acquisition and labeling that meet the above requirements are too costly to implement.Therefore,we propose a virtual electromagnetic environment modeling based data augmentation(DA)method to improve the diversity of drone signal data.The DA method focuses on simulating the spectrograms of drone signals transmitted in real-world environments and randomly generates extra training data in each training epoch.Furthermore,considering the limited processing capability of RF receivers,we modify the original YOLOv5s model to a more lightweight version.Without losing the identification performance,more hardware-friendly designs are applied and the number of parameters decreases about 10-fold.For performance evaluation,we utilized a universal software radio peripheral(USRP)X310 platform to collect RF signals of four drones in an anechoic chamber and a practical wireless scenario.Experiment results reveal that the NN trained with augmented data performs as well as that trained with practical data in the complex electromagnetic environment. 展开更多
关键词 Drone signal identification Data augmentation Virtual electromagnetic environment modeling You Only Look Once SPECTROGRAM
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Somatic mutations in renal cell carcinomas from Chinese patients revealed by targeted gene panel sequencing and their associations with prognosis and PD-L1 expression 被引量:1
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作者 Jie Wang Jianzhong Xi +4 位作者 hanshuo zhang Juan Li Yuchao Xia Ruibin Xi Zhijun Xi 《Cancer Communications》 SCIE 2019年第1期348-353,共6页
Dear Editor, Renal cell carcinoma (RCC) is among the most common human cancers in the United States, with approximately 63,990 new patients and 14,400 deaths annually [1]. However, RCC is not among the top 10 malignan... Dear Editor, Renal cell carcinoma (RCC) is among the most common human cancers in the United States, with approximately 63,990 new patients and 14,400 deaths annually [1]. However, RCC is not among the top 10 malignancies in China in terms of incidence and mortality [2]. The clini-cal and molecular features of RCC differ among distinct pathological types, mainly clear cell renal cell carcinoma (ccRCC), papillary renal cell carcinoma (PRCC), and chromophobe renal cell carcinoma (ChRCC). The most common subtype of RCC is ccRCC worldwide. Accord-ing to The Cancer Genome Atlas (TCGA), the somatic mutation landscape of RCC has been revealed by whole- exome sequencing (WES) or whole-genome sequencing (WGS). In our previous WES study, we validated most of the significantly mutated genes reported by the TCGA and identified several novel somatically altered genes [3]. The TCGA study showed that only somatic mutations in BRCA1-associated protein 1 (BAP1) were associated with patients’ poor survival outcomes among all significantly mutated genes [4]. In our previous WES study, BAP1 was somatically mutated in 2 of 15 ccRCC samples [3]. Never-theless, all of these RCC patients lacked follow-up infor-mation. Hence, further analysis is needed to determine whether there are any somatically mutated genes associ-ated with the prognosis of Chinese patients with RCC. However, WES or WGS is time-consuming and costly. Furthermore, compared with targeted sequencing, WES was more likely to generate false positives and false nega-tives due to insufficient base coverage [5]. 展开更多
关键词 patients TARGETED false
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