136 results on '"周 博"'
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2. 经颅直流电刺激对人体单腿落地稳定性的影响.
- Author
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林秦兆, 魏梦力, 钟亚平, 吴 倩, 周博韬, and 王海锋
- Abstract
Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering 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.)
- Published
- 2024
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3. Ⅲ型纤连蛋白结构域包含蛋白 5 抑制巨噬细胞焦亡的作用机制.
- Author
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赵广建, 刘大男, 周 博, and 王 尧
- Abstract
Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering 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.)
- Published
- 2024
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4. “新中国设计的诞生(1945—1959)”策展絮语.
- Author
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周 博
- Published
- 2024
5. -种钠离子电池的健康状态估计方法.
- Author
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孙文杰, 杨之乐, 郭媛君, 姚文娇, 许欢, and 周博文
- Abstract
Copyright of Integrated Intelligent Energy is the property of Editorial Department of Integrated Intelligent Energy 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.)
- Published
- 2024
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6. 连续退火快冷出口温度对 SPCC 冷轧薄板 组织和性能的影响.
- Author
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周博文, 蒋才灵, 樊 雷, 刘义虎, 陆茂森, and 杨跃标
- Abstract
Copyright of Iron Steel Vanadium Titanium is the property of Iron Steel Vanadium Titanium 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.)
- Published
- 2024
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7. 城际/市域铁路CTCS2+ATO 系统自动折返技术研究.
- Author
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李珍萍, 臧永立, 易海旺, 周博渊, 王一阁, and 惠子南
- Abstract
Copyright of Railway Standard Design is the property of Railway Standard Design 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.)
- Published
- 2024
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8. 长脉冲高功率负离子源实验平台量热靶研制.
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周红霞, 万银祥, 周博文, 余珮炫, 唐珮钦, and 魏会领
- Abstract
Copyright of Southern Energy Construction is the property of Southern Energy Construction 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.)
- Published
- 2024
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9. 海南环岛高铁站点周边建设用地扩张 及其影响机理.
- Author
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熊昌盛, 胡宇瑶, 周 博, 刘 学, and 栾乔林
- Abstract
Copyright of Tropical Geography is the property of Tropical Geography 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.)
- Published
- 2024
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10. 基于对抗互易点学习的无人机通信干扰开集 识别方法.
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李佳浩, 杜子铭, 周 博, 李 婕, and 吴启晖
- Abstract
Copyright of Journal of Signal Processing is the property of Journal of Signal Processing 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.)
- Published
- 2024
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11. 油酸钾浓度及玄武岩纤维取向对天然橡胶/ 玄武岩纤维复合材料性能的影响.
- Author
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任建彬, 周博文, 李伟帅, 张德伟, and 汪传生
- Abstract
Copyright of Polymer Materials Science & Engineering is the property of Sichuan University, Polymer Research Institute 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.)
- Published
- 2024
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12. 结合算子选择的卷积神经网络显存优化算法.
- Author
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魏晓辉, 周博文, 李洪亮, and 徐哲文
- Abstract
Copyright of Journal of Jilin University (Science Edition) / Jilin Daxue Xuebao (Lixue Ban) is the property of Zhongguo Xue shu qi Kan (Guang Pan Ban) Dian zi Za zhi She 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.)
- Published
- 2024
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13. 基于特征重加权的小样本遥感图像目标检测算法.
- Author
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周 博, 葛洪武, 李 珩, and 李 旭
- Abstract
Copyright of Computer Measurement & Control is the property of Magazine Agency of Computer Measurement & Control 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.)
- Published
- 2024
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14. 木质素分离及主要物理和 力学性能的研究进展.
- Author
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周博鑫, 沈姿伶, 江京辉, 漆楚生, and 戴 璐
- Abstract
Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering 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.)
- Published
- 2024
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15. 基于红外相机的江西九岭山国家级自然保护区鸟兽多样性监测.
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汤 勇, 底明晓, 周 博, 卢 萍, 彭 勇, 戴年华, and 翁晓东
- Abstract
Copyright of Journal of Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences 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.)
- Published
- 2024
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16. 血小板与淋巴细胞比值对中国川崎病患儿 冠状动脉病变预测价值的Meta 分析.
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李燕羽, 袁晨辰, 蔡艾媛, 周博举, and 黄腾
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CORONARY artery disease ,PLATELET lymphocyte ratio ,MUCOCUTANEOUS lymph node syndrome - Abstract
Copyright of Chinese Journal of Contemporary Pediatrics is the property of Xiangya Medical Periodical Press 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.)
- Published
- 2023
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17. 基于改进EfficientNet的轻量型白细胞图像识别模.
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刘 欢, 吴亮红, 陈 亮, and 周博文
- Abstract
Copyright of Computer Engineering & Science / Jisuanji Gongcheng yu Kexue is the property of Computer Engineering & 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.)
- Published
- 2023
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18. Er3+ /Tm3+ 共掺镱基纳米晶上转换白光调控及应用.
- Author
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安正策, 王丽萍, and 周 博
- Abstract
Copyright of Chinese Journal of Applied Chemistry is the property of Chinese Journal of Applied Chemistry 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.)
- Published
- 2023
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19. Irisin/PPARα 信号通路对小鼠主动脉平滑肌细胞增殖的作用机制.
- Author
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王 尧, 刘大男, 赵广建, 周 博, and 王 向
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VASCULAR smooth muscle ,PEROXISOME proliferator-activated receptors ,MUSCLE cells ,GENE expression ,IRISIN ,FIBRONECTINS - Abstract
Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering 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.)
- Published
- 2023
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20. 急性缺血性脑卒中不同水平血压管理应用效果及其对近期预后 及认知功能的影响.
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李 琳, 杨晓凤, 周 博, 李灵玲, and 孙 慧
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ISCHEMIC stroke ,BLOOD pressure ,COGNITIVE ability ,PROGNOSIS - Abstract
Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine 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.)
- Published
- 2023
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21. 中空夹层钢套铝管混凝土短柱轴压性能试验研究.
- Author
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李 兵, 田立明, and 周 博
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ALUMINUM tubes ,COMPOSITE structures ,COLUMNS ,STEEL ,CONCRETE - Abstract
Copyright of Journal of Architecture & Civil Engineering is the property of Chang'an Daxue Zazhishe 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.)
- Published
- 2023
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22. 复合故障状态下行星齿轮 ̄转子耦合系统振动 响应特性研究.
- Author
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周博虎, 李国彦, 任昱霖, and 熊晓燕
- Abstract
At present, domestic and foreign scholars have conducted research on the dynamic characteristics of gear rotor coupling systems, but none of the above studies have considered the composite fault state of planetary gears and rotors. Therefore, taking a single stage planetary gearbox as an example, a dynamic model of the planetary gear rotor coupling system with rotor eccentricity and root crack faults was constructed, to simulation analyze and experimentally study the vibration response characteristics of the planetary gear rotor coupling system under composite fault conditions. Aiming at the problem of multi-source coupling vibration and composite fault diagnosis in planetary gear transmission systems, a single stage planetary gearbox was executed by dynamic modeling, dynamic characteristics analysis and experimental analysis. Firstly, considering time-varying meshing stiffness, support stiffness, damping, gyroscopic effect, and transmission shaft flexibility, the lumped parameter method and Timoshenko beam theory was used to establish a dynamic model of a planetary gear-rotor coupling system with shaft eccentricity root crack composite fault. Then, the influence of different faults on the dynamic characteristics of the system was analyzed by numerical analysis using time waves, frequency spectrum, axis center orbit and phase diagram. The influence of the root crack propagation of the sun gear on the vibration response characteristics of the system under eccentric state was studied. Finally, the accuracy of the dynamic model was verified by different crack fault experiment. The results show that the influence of eccentricity on meshing vibration is significant and can not be ignored in the analysis of fault characteristics of planetary gear trains. Under the influence of eccentric-crack coupling, the vibration response of the system is composed of unbalanced vibration, normal meshing vibration and fault impact vibration. In the spectrum, there are rotational frequency fr, meshing harmonic kfm and complex sideband component kfm±fr、kfm±fr±nfsc. With the increase of crack degree, the modulation phenomenon is more obvious.The research results can provide a theoretical basis for the compound fault diagnosis of planetary gear-rotor system. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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23. MMC接入的交流侧线路故障特征及 故障分量方向元件的动作特性.
- Author
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王文博, 李 斌, 何佳伟, 李 晔, 谢仲润, and 周博昊
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SYNCHRONOUS generators ,ALTERNATING currents ,GRIDS (Cartography) ,REFERENCE values ,VOLTAGE ,ANGLES ,HIGH voltages - Abstract
Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press 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.)
- Published
- 2023
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24. Prediction of the Number of Migrant Workers in China Based on Grey GM(1,1) Model
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周, 博, primary
- Published
- 2023
- Full Text
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25. 基于多模块组合的生物显微图像降噪方法研究
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Le Weihua, 乐炜桦, primary, Yi Dingrong, 易定容, additional, Zhou Bocong, 周博聪, additional, and Huang Caihong, 黄彩虹, additional
- Published
- 2023
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26. The Criminal Law Qualification of Operating Virtual Market Case
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周, 博文, primary
- Published
- 2023
- Full Text
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27. Occupational Mobility of K12 Education and Training Practitioners in the Context of “Double Reduction” Policy: Current Situation, Dilemma and Enlightenment
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周, 博, primary
- Published
- 2023
- Full Text
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28. 水利信息化之水利自动化发展趋势探讨.
- Author
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周 博
- Abstract
Copyright of Water Conservancy & Electric Power Technology & Application is the property of Omniscient Pte. Ltd. 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.)
- Published
- 2024
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29. 高温油藏耐盐聚合物P(AM/MAPS)驱油剂的制备与性能评价.
- Author
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宁长元, 张亮, 潘若生, 康万利, 李哲, 杨红斌, 周博博, and 蒋海壮
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NUCLEAR spectroscopy ,ENHANCED oil recovery ,ALLYL chloride ,INFRARED spectroscopy ,PETROLEUM reservoirs ,POLYMERS ,ACRYLAMIDE - Abstract
Copyright of Oilfield Chemistry is the property of Sichuan University, Oilfield Chemistry 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.)
- Published
- 2023
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30. 高频钻井液压力波衰减模型及规律研究.
- Author
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周博涛, 苏义脑, and 王家进
- Subjects
WAVES (Fluid mechanics) ,DRILL stem ,DRILLING fluids ,PROPERTIES of fluids ,DRILLING muds - Abstract
Copyright of Coal Geology & Exploration is the property of Xian Research Institute of China Coal Research Institute 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.)
- Published
- 2023
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31. 利用 SEER 数据库分析族群因素对于 黑色素瘤预后的影响.
- Author
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贲旻熙, 周博言, and 李 辉
- Abstract
Objective To investigate the impact of race and its interaction with clinical factors on prognosis, and to determine whether racial factor is a key prognostic factor for melanoma. Methods We examined the effect of race on survival in melanoma with the Cox proportional hazards (CoxPH) model and two machine learning methods, random forest (RF) model and gradient boosting machine (GBM) model, using the Surveillance, Epidemiology, and End Results (SEER) database. A Logistic regression model was applied to investigate the interaction effects between race and stage/ulceration factors on the melanoma-specific mortality. Results Race showed borderline significance in the Cox model and had low variable importance in two machine learning models. In the Logistic regression model, for patients diagnosed at stage Ⅰ/Ⅱ, the odds ratios (OR) of melanoma-specific mortality in non-Hispanic blacks, non-Hispanic Asians, and Hispanics were 1.76 (95%CI: 1.34-2.31), 1.52 (95%CI: 1.16-1.99) and 1.19 (95%CI: 1.04-1.35) relative to whites, while the results were not significant for patients diagnosed at stage Ⅲ/Ⅳ . Conclusion Race is not an independent prognostic factor for melanoma. It is necessary to strengthen early screening and medical interventions for melanoma patients of non-white ethnicities. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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32. A fast method to evaluate water eutrophication
- Author
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Yan, Hu-yong / 严胡勇, Wang, Guo-yin / 王国胤, Zhang, Xue-rui / 张学睿, Dong, Jian-hua / 董建华, Shan, Kun / 闪锟, Wu, Di / 吴迪, Huang, Yu / 黄昱, Zhou, Bo-tian / 周博天, and Su, Yu-ting / 苏宇婷
- Published
- 2016
- Full Text
- View/download PDF
33. 基于碳交易与碳捕捉均衡成本的 风光火储系统低碳调度技术.
- Author
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王荣茂, 刘淼, 张晔, 周博文, and 回旋
- Published
- 2023
34. 改进多尺度卷积结构与高斯核的E-CenterNet算法.
- Author
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胡松松, 吴亮红, 张红强, 陈 亮, 周博文, and 张 侣
- Subjects
FEATURE extraction ,ELLIPSES (Geometry) ,ALGORITHMS ,PYRAMIDS ,PERCENTILES - Abstract
Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. 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.)
- Published
- 2023
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35. 小黑杨转录因子 PsnbHLH162 基因在盐和低温胁迫下应答分析.
- Author
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刘森尧, 贾丰璘, 国 庆, 樊高锋, 周博如, and 姜廷波
- Subjects
PLANT genes ,GENE expression ,MOLECULAR cloning ,ABIOTIC stress ,CELLULAR signal transduction ,CIRCADIAN rhythms ,CLOCK genes - Abstract
Copyright of Bulletin of Botanical Research is the property of Bulletin of Botanical Research 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.)
- Published
- 2023
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36. 小黑杨转录因子 PsnbZIP1 应答盐胁迫功能分析.
- Author
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廖诗贤, 王宇婷, 董立本, 顾咏梅, 贾丰璘, 姜廷波, and 周博如
- Subjects
GENE expression ,BINDING sites ,MOLECULAR cloning ,NUCLEAR proteins ,PEPTIDES - Abstract
Copyright of Bulletin of Botanical Research is the property of Bulletin of Botanical Research 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.)
- Published
- 2023
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37. 低温烘焙提质对褐煤着火燃烧特性的影响.
- Author
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董 琨, 胡中发, 周博斐, 周月桂, 王学斌, 陈冠益, and 雷廷宙
- Subjects
LIGNITE ,COMBUSTION efficiency ,LIGNITE combustion ,BOILER efficiency ,FUEL quality ,IGNITION temperature ,TEMPERATURE effect - Abstract
Copyright of Clean Coal Technology is the property of Clean Coal 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.)
- Published
- 2023
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38. 再生风机叶片纤维对混凝土力学和抗冻性能的影响.
- Author
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王富平, 张 默, and 周博宇
- Subjects
WIND turbine blades ,WASTE treatment ,MECHANICAL drawing ,CONCRETE waste ,WASTE recycling ,TENSILE strength - Abstract
Copyright of Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society 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.)
- Published
- 2023
39. 低阈值钙钛矿光子晶体激光器
- Author
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Zhou Bolin, 周博林, primary, Li Guohui, 李国辉, additional, Wu Jianhong, 吴建红, additional, Wen Rong, 温荣, additional, Pi Huihui, 皮慧慧, additional, Hao Yuying, 郝玉英, additional, and Cui Yanxia, 崔艳霞, additional
- Published
- 2022
- Full Text
- View/download PDF
40. 多相流下剪切阀连续波发生器水力转矩 参数化建模与分析.
- Author
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周博涛, 苏义脑, and 王家进
- Abstract
Shear valve continuous wave generators (SVCWGs) has the characteristics of high signal transmission rate and strong robustness, and has broad application prospects. However, the unclear hydraulic torque law acting on the shear valve restricts its development. At present, the research on the hydraulic torque acting on the shear valve with arbitrary shape orifice under the influence of multiphase flow is still insufficient, and the variation rule of hydraulic torque is still unclear. Therefore, Based on the fluid momentum theorem, using the finite element method, an analysis model of the load torque of the divided flow was established and verified by computational fluid dynamics (CFD) simulation, and the influence of well depth and drilling fluid properties on the hydraulic torque was analyzed. The results show that the hydraulic torque acting on the shear valve increases first and then decreases, and the direction is always the direction that maximizes the flow area. The hydraulic torque decreases slightly with the increase of well depth. The hydraulic torque increases with the increase of solid content and liquid density. The gas content of drilling fluid has little influence on the hydraulic torque. The research results can provide a theoretical reference for the design of SVCWGs. [ABSTRACT FROM AUTHOR]
- Published
- 2022
41. 电磁频谱空间态势认知新范式:频谱语义和频谱行为.
- Author
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周 博, 马欣怡, 况婷妍, and 李 婕
- Abstract
Copyright of Journal of Data Acquisition & Processing / Shu Ju Cai Ji Yu Chu Li is the property of Editorial Department of Journal of Nanjing University of Aeronautics & Astronautics 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.)
- Published
- 2022
- Full Text
- View/download PDF
42. 结直肠癌的关键癌症驱动基因筛选及其生物学功能分析.
- Author
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王锦淼, 王颖, 周博昊, 王雷, and 穆伟斌
- Abstract
Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers 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.)
- Published
- 2022
- Full Text
- View/download PDF
43. 基于六旋翼无人机的定量供种离心式 水稻播种装置设计与试验.
- Author
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彭永福, 刘兆朋, 陈雄飞, 刘木华, 周博聪, 余佳佳, 刘俊安, and 余国栋
- Published
- 2022
- Full Text
- View/download PDF
44. 智慧水利物联网网络安全监测体系研究.
- Author
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周 博
- Abstract
Copyright of Water Conservancy & Electric Power Technology & Application is the property of Omniscient Pte. Ltd. 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.)
- Published
- 2023
45. 乌拉盖盆地第四系潜水水化学特征及成因分析.
- Author
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周博文, 常宝成, 那木吉拉, and 李华明
- Subjects
METEOROLOGICAL precipitation ,WATER hardness ,WATER chemistry ,FRESH water ,PARAMETERS (Statistics) ,CARBONATE minerals ,CARBONATES - Abstract
Copyright of World Nuclear Geoscience is the property of World Nuclear Geoscience 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.)
- Published
- 2022
- Full Text
- View/download PDF
46. 白云鄂博西矿区伴生型萤石矿床的稀土元素地球化学特征及其指示意义.
- Author
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刘思啥, 王春连, 刘殿鹤, 王军, 柯昌辉, 游超, and 周博文
- Abstract
Copyright of Acta Petrologica et Mineralogica / Yanshi Kuangwuxue Zazhi is the property of Acta Petrologica et Mineralogica 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.)
- Published
- 2022
47. 低阈值钙钛矿光子晶体激光器
- Author
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周博林 Zhou Bolin, 李国辉 Li Guohui, 吴建红 Wu Jianhong, 温荣 Wen Rong, 皮慧慧 Pi Huihui, 郝玉英 Hao Yuying, and 崔艳霞 Cui Yanxia
- Subjects
Electrical and Electronic Engineering ,Atomic and Molecular Physics, and Optics - Published
- 2022
48. 额仁淖尔水源地靶区地下水可开采潜力分析及可增加开采量评价.
- Author
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周博文, 李华明, and 常宝成
- Subjects
ORE deposits ,CLASTIC rocks ,WATER levels ,WATER supply ,PORE water ,WATER shortages - Abstract
Copyright of World Nuclear Geoscience is the property of World Nuclear Geoscience 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.)
- Published
- 2022
- Full Text
- View/download PDF
49. 基于太赫兹时域光谱技术的烟草组分识别.
- Author
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周 博, 朱文魁, 王赵改, 蒋鹏飞, 刘洪坤, 李智慧, 张 柯, and 付丽丽
- Subjects
- *
TERAHERTZ time-domain spectroscopy , *K-nearest neighbor classification , *SUPPORT vector machines , *FEATURE extraction , *PRINCIPAL components analysis , *TERAHERTZ spectroscopy , *TOBACCO - Abstract
Tobacco leaves can often be classified in detail by variety, stalk position, and place of production. Different tobacco components include leaf shreds, stem shreds, and reconstituted tobacco leaf shreds. It is a high demand to classify and identify the tobacco components in recent years. This present work aims to analyze the absorption coefficient spectrum and refractive index spectrum of three tobacco components in the range of 0.35-1.50 THz using the terahertz time-domain spectroscopy. The low-variance filtering combined with Principal Component Analysis (PCA) was performed for the spectral feature extraction and dimension reduction on spectroscopy data. Three classification models were developed to determine the specific absorption and refraction spectra of tobacco, including Support Vector Machine (SVM), K-Nearest Neighbor (KNN), and Bagged trees. The results show that a higher accuracy was achieved in the classification model using the absorption coefficient spectrum. The low variance filter combined with the PCA feature extraction significantly improved the classification accuracy, and the KNN model presented an accuracy rate of 98.3%. Furthermore, the Successive Projections Algorithm (SPA) feature extraction was also utilized for the frequency domain spectrum combined with the SVM model, where the classification accuracy was also about 90%. Consequently, the terahertz time-domain spectroscopy technology can be expected to serve the classification of cut tobacco. The finding can provide a strong reference for the application of terahertz time-domain spectroscopy to the non-destructive detection of tobacco materials. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
50. 武隆区块常压页岩气藏低成本压裂技术.
- Author
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周博成, 熊 炜, 赖建林, and 房启龙
- Subjects
HYDRAULIC fracturing ,SHALE gas ,OIL shales - Published
- 2022
- Full Text
- View/download PDF
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