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| 1 | 一种改进的AAM人脸特征点快速定位方法显示文摘传统的AAM(Active Appearance Models)人脸特征定位改进方法通常关注于拟合效率上,没有具体考虑拟合初始位置和模型实例的特征,因此定位准确率和速度并不理想。该文提出了一种基于人脸特征检测和简单三维姿态估计的拟合初始位置改进和模型实例选择方法。首先采用Adaboost算法对图像中人脸特征进行预检测,然后充分利用YCbCr色彩空间人脸肤色特性对无法检测或检测不完全的图像进行特征提取,最后根据特征区域计算鼻尖坐标和人脸偏转角,合理调整拟合中心位置和模型实例,并在拟合过程中引入ATLAS(Automatically Tuned Linear Algebra Software)线性代数软件包,实现矩阵优化。基于IMM人脸库的仿真实验表明,该方法与传统反向组合AAM相比,拟合准确率提高约43%,时间消耗降低约62%。 | 范小九 彭强 Jim X Chen 夏旭 | 2009 | 电子与信息学报2009,31,6: | 14 |
| 2 | 武汉初中生吸烟、饮酒与主要生活事件关系初探显示文摘目的:了解中学生吸烟、饮酒与生活事件之间的关系。方法:在武汉市城区和郊区共选取205名初一学生,进行问卷调查。结果:中学生吸烟率(包括只吸了一口烟)为31.22%,吸烟大于1支者为12.68%,饮酒率(包括只喝了一口酒)为61.46%。男生尝试吸烟主要与学校方面的负性事件有关,女生则与学校的正性事件、家庭和伙伴方面的负性事件有关,而吸烟一支以上主要与学校、家庭方面的负性生活事件有关。男生饮酒主要与家庭方面的正性事件有关,而女生则与伙伴方面的负性事件有关。结论:家庭与伙伴的影响与中学生吸烟、饮酒关系密切。 | 龚洁 C.Anderson 李燕 Jim Chen 王戎 Jennifer.B 于健 陈丹 郭倩 | 2000 | 中国学校卫生2000,21,1: | 10 |
| 3 | 草地场景真实感模拟技术综述显示文摘草体作为自然场景的一种重要组成元素,其数量众多、覆盖范围广,因此很难实现实时绘制,大规模草地场景真实感模拟已成为计算机图形学中研究的热点和难点之一.文中对20多年来草地场景真实感模拟技术的发展情况进行综述,分别从绘制技术、LOD表达、动态模拟以及业界现状等几个方面做了比较深入的介绍,分析并比较了一些典型方法的基本原理和优缺点;最后对该领域未来的发展趋势进行了展望. | 邱航 陈雷霆 Jim X. Chen 凌飞 | 2010 | 计算机辅助设计与图形学学报2010,22,9: | 8 |
| 4 | 视频传输差错掩盖技术研究现状与发展趋势显示文摘讨论了视频差错掩盖研究的发展过程和现状.介绍了常见的空域和时域差错掩盖算法,特别是基于边缘检测的空域自适应差错掩盖算法、基于运动向量外插的时域差错掩盖算法、多步多权值块变形差错掩盖算法以及基于失真度估计的SVC质量分级自适应差错掩盖算法.分析了这些算法在不同有损传输环境下的差错掩盖性能和适用环境.预测了差错掩盖技术可能的发展趋势. | 彭强 张蕾 Chen Jim X. | 2009 | 西南交通大学学报2009,44,4: | 8 |
| 5 | ADVANCES IN UNDERSTANDING AND FORECASTING RAPIDLY CHANGING PHENOMENA IN TROPICAL CYCLONES显示文摘This review of new understanding and forecasting of tropical cyclones(TCs) is based on presentations at the International Top-level Forum on Rapid Change Phenomena in Tropical Cyclones in Haikou, China. The major topics are the sudden changes in tracks, rapid changes in structure and intensity, rapid changes in rainfall, and advances in forecasting and forecaster requirements. Although improved track forecast guidance has been achieved with the Australian ACCESS-TC model and in track forecasts to 120 h by the China Meteorological Administration, there is a continuing need for better understanding and improved track forecast guidance. Advances in understanding of processes related to rapid intensification(RI), secondary eyewall formation, mechanisms controlling inner-core structure and size changes, and structure and intensity changes at landfall have been achieved, but progress in prediction of rapid changes in structure and intensity has been slow. Taking into account complex interactions involved in TC-related rainfall, a prioritized list of physical processes that govern rainfall from landfalling TCs in China has been developed. While forecaster participants were generally encouraged by the progress being made, they expressed a strong desire for a transition of that new knowledge to timely and reliable forecast guidance products. | RUSSELL L.ELSBERRy LIANSHOU CHEN JIM DAVIDSON ROBERT ROGERS YUQING WANG LIGUANG WU | 2013 | Tropical Cyclone Research and Review2013,2,1: | 7 |
| 6 | 基于电镜图像的Corti器三维建模显示文摘目的探讨建立 Corti 器的三维可视化模型的方法,为进一步建立其力学模型打下基础。方法制备豚鼠 Corti 器标本并行扫描电镜和透射电镜观察。以 Corti 器电镜图像为参照标准,在三维建模软件3DStudio MAX 的支持下,结合多种高级建模方法,创建 Corti 器的三维数字模型。结果成功建立了 Corti 器三维可视化模型,该模型正确展示了 Corti 器三维组成结构及各结构之间的空间位置关系。结论本实验应用电镜图像建立 Corti 器的三维模型的方法是可行的,Corti 器三维模型为研究耳蜗机械力学提供了重要基础。(中国眼耳鼻喉科杂志,2007,7:144-146) | 邢琪 谢友舟 戴培东 张天宇 杨琳 CHEN Jim X 谭明 | 2007 | 中国眼耳鼻喉科杂志2007,7,3: | 6 |
| 7 | 多器官床旁即时超声在新型冠状病毒肺炎中的应用:国际专家共识显示文摘新型冠状病毒肺炎(简称新冠肺炎,COVID-19)自首次报道以来,已造成全球超一亿人感染,给各国的公共卫生体系造成了巨大威胁。新冠肺炎的临床表现以呼吸系统体征和症状为主,80%的患者症状轻微,约5%为危重症患者,常表现为急性呼吸窘迫综合征(ARDS)。前期,由于缺乏相关研究,面对日益紧迫的临床困境,医务人员不得不借鉴采取一些经验性措施以应对疫情。 | 王臻(译) Arif Hussain Gabriele Via Lawrence Melniker Alberto Goffi Guido Tavazzi Luca Neri Tomas Villen Richard Hoppmann Francesco Mojoli Vicki Noble Laurent Zieleskiewicz Pablo Blanco Irene W.Y.Ma Mahathar Abd.Wahab Abdulmohsen Alsaawi Majid AI Salamah Martin Balik Diego Barca Karim Bendjelid Belaid Bouhemad Pablo Bravo-Figueroa Raoul Breitkreutz Juan Calderon Jim Connolly Roberto Copetti Francesco Corradi Anthony J.Dean AndréDenault Deepak Govil Carmela Graci Young-Rock Ha Laura Hurtado Toru Kameda Michael Lanspa Christian B Laursen Francis Lee Rachel Liu Massimiliano Meineri Miguel Montorfano Peiman Nazerian Bret P.Nelson Aleksandar N.Neskovic Ramon Nogue Adi Osman JoséPazeli Elmo Pereira-Junior Tomislav Petrovic Emanuele Pivetta Jan Poelaert Susanna Price Gregor Prosen Shalim Rodriguez Philippe Rola Colin Royse Yale Tung Chen Mike Wells Adrian Wong Wang Xiaoting Wang Zhen Yaseen Arabi | 2021 | 中国呼吸与危重监护杂志2021,20,2: | 5 |
| 8 | 利用主动外观模型进行3D人脸的快速自动建模显示文摘针对传统方法存在的通用性不强、实时性较差和与视频传输系统不兼容等缺点,提出一种面向单幅任意姿态图像的3D人脸建模技术.首先将基于初始位置校正和模型实例选择的主动外观模型改进方法应用到人脸特征点的提取过程中;然后结合人脸结构特征和空间仿射变换调节CANDIDE-3线框模型,实现对应人脸的全局位置恢复和形状匹配.在此基础上,根据感兴趣区域的对称性对局部坐标进行微调,并构建真实感纹理.实验结果表明,该技术不受图像拍摄焦距等因素影响,单幅图像平均建模时间约为300ms. | 范小九 彭强 Jim X Chen | 2009 | 计算机辅助设计与图形学学报2009,21,5: | 5 |
| 9 | 生活事件对武汉市中学生心理行为和人际关系影响的研究显示文摘目的了解生活事件对中学生心理行为和人际关系的影响。方法采用生活事件调查表,对武汉市城区和郊区205名初一学生进行问卷式调查,分别从“学习感到吃力”、“讨厌上学”、“逃学”三个递增的层面和家庭(感到父母不关心或支持自己)、社会(感到小伙伴不关心自己)、学校(感到老师不喜欢自己)三个方面进行研究。采用单因素的χ2检验筛选变量,在此基础上进行多因素的logistic回归分析。结果与中学生心理行为有关的生活事件主要为家庭和学校方面的事件,而影响中学生人际关系的生活事件主要来自于学习方面。结论家长和老师是影响青少年人际关系和心理行为的重要因素。 | 李燕 龚洁 杨旭 郑虹 C.ANDERSON JIM CHEN JENNIFER DENNIS R.T | 1999 | 中国行为医学科学1999,8,2: | 5 |
| 10 | A novel T cell-based vaccine capable of stimulating long-term functional CTL memory against B 16 melanoma via CD40L signaling显示文摘antitumor 疫苗的最终的目标是开发记忆 CD8 + 细胞毒素的 T 淋巴细胞(CTL ) ,它是 antitumor 免疫的批评调停人。我们以前证明 ovalbumin (卵) 特定的 CD4 + T 基于房间(OVA-T 用搏动卵的树枝状的房间产生的 EXO ) 疫苗(DC 卵 )-released exosomes (EXO 卵 ) 经由 IL-2 和 costimulatory CD80 发信号刺激 CTL 回答。估计另外的 costimulatory 小径的潜在的参与并且为存储器 CTL 开发定义 costimulation 的关键成分,我们首先使免疫野类型(WT ) 有 WT CD4 + OVA-T EXO 房间或 OVA-T 有各种各样的分子的缺乏的 EXO 房间。我们然后估计了卵特定主要并且召回 CTL 回答使用 PE-H-2K 由流动 cytometry 染色的 b /OVA257-264 tetramer 和 FITC-anti-CD8 抗体。我们也对表示卵的 B16 黑瘤房间线 BL6-10 卵 。我们表明了那 CD4 + OVA-T EXO 房间与 DC 卵 。由估计主要并且在与 OVA-T EXO 或与 OVA-T 缺乏 costimulatory 分子 CD40L, 4-1BBL 或 OX40L 的 EXO ,我们证明这些 costimulatory 信号为由 OVA-T EXO 。有趣地, CD40L,然而并非 4-1BBL 或 OX40L,对 BL6-10 卵 肿瘤。总的来说,这个工作建议能够经由 CD40L 发信号刺激长期的功能的 CTL 记忆的一支新奇 CD4 + T 基于房间的疫苗可以代表一条新奇、有效途径到 antitumor 种痘。 | Yufeng Xie Lu Wang Andrew Freywald Mabood Qureshi Yue Chen Jim Xiang | 2013 | Cellular & Molecular Immunology2013,10,1: | 5 |
| 11 | Transgenic 4-1BBL-engineered vaccine stimulates potent Gag-specific therapeutic and long-term immunity via increased priming of CD44+CD62Lhigh IL-7R+ CTLs with up- and downregulation of anti- and pro-apoptosis genes显示文摘 | Rong Wang Andrew Freywald Yue Chen Jianqing Xu Xin Tan Jim Xiang | 2015 | Cellular & Molecular Immunology2015,12,4: | 4 |
| 12 | 经自然腔道取标本手术(NOSES)治疗结直肠癌的国际共识显示文摘近年来,经自然腔道取标本手术(NOSES)治疗结直肠癌已引起了广泛关注。NOSES应用于结直肠手术的潜在优势包括减轻术后疼痛,减少伤口并发症,减少对术后镇痛的需求,加快肠道功能的恢复,缩短住院时间,更好的美容效果,以及给患者带来了更佳的心理状态。尽管NOSES的手术创伤显著减轻,然而该技术也存在一些潜在问题。尤其随着这项新技术的兴起,人们对其无菌的把控、肿瘤学结果和病例选择等问题表示出关切。因此,迫切需要一部操作指南来规范NOSES手术在结直肠癌中的开展。经过国际NOSES联盟全体成员的三轮讨论,最终形成了该部共识。这一共识有助于NOSES在全球范围内的长远发展。 | Xu Guan Zheng Liu Antonio Longo Jian-Chun Cai William Tzu-Liang Chen Lu-Chuan Chen Ho-Kyung Chun Joaquim Manuel da Costa Pereira Sergey Efetov Ricardo Escalante Qing-Si He Jun-Hong Hu Cuneyt Kayaalp Seon-Hahn Kim Jim S.Khan Li-Jen Kuo Atsushi Nishimura Fernanda Nogueira Junji Okuda Avanish Saklani Ali A.Shafik Ming-Yin Shen Jung-Tack Son Jun-Min Song Dong-Hui Sun Keisuke Uehara Gui-Yu Wang Ye Wei Zhi-Guo Xiong Hong-Liang Yao Gang Yu Shao-Jun Yu Hai-Tao Zhou Suk-Hwan Lee Petr V.Tsarkov Chuan-Gang Fu Xi-Shan Wang The International Alliance of NOSES | 2019 | Gastroenterology Report2019,7,1: | 3 |
| 13 | Key-frame reference selection for non-feedback video communication显示文摘This article addresses the problem of reference picture optimization in video communication over error prone networks. A novel estimation model for transmission distortion is proposed. This model is capable of recursively estimating the overall end-to-end distortion caused by quantization, error propagation, and error concealment. Simulation results show that this model can accurately estimate channel distortion. Then, based on the distortion estimation model, a new non-feedback key-frame reference picture selection (KRPS) algorithm is developed. The optimum reference picture minimizes the transmission distortion under the rate-distortion optimization framework. Extensive experiment results demonstrate that the proposed KRPS algorithm substantially achieves more peak signal to noise ratio (PSNR) gain over traditional prediction, especially in low bit-rate transmission. | PENG Qiang ZHANG Lei YANG Tian-wu CHEN Jim X ZHU Ce | 2009 | The Journal of China Universities of Posts and Telecommunications2009,16,5: | 3 |
| 14 | Upper Ocean Temperatures Hit Record High in 2020显示文摘The long-term warming of the ocean is a critical indicator of both the past and present state of the climate system. It also provides insights about the changes to come, owing to the persistence of both decadal variations and secular trends,which the ocean records extremely well(Hansen et al., 2011;IPCC, 2013;Rhein et al., 2013;Trenberth et al., 2016;Abram et al., 2019). | Lijing CHENG John ABRAHAM Kevin ETRENBERTH John FASULLO Tim BOYER Ricardo LOCARNINI Bin ZHANG Fujiang YU Liying WAN Xingrong CHEN Xiangzhou SONG Yulong LIU Michael EMANN Franco RESEGHETTI Simona SIMONCELLI Viktor GOURETSKI Gengxin CHEN Alexey MISHONOV Jim REAGAN Jiang ZHU | 2021 | Advances in Atmospheric Sciences2021,38,4: | 2 |
| 15 | Cyst(e)ine in nutrition formulation promotes colon cancer growth and chemoresistance by activating mTORCl and scavenging ROS显示文摘Weight loss and cachexia are common problems in colorectal cancer patients;thus,parenteral and enteral nutrition support play important roles in cancer care.However,the impact of nonessential amino acid components of nutritional intake on cancer progression has not been fully studied.In this study,we discovered that gastrointestinal cancer patients who received cysteine as part of the parenteral nutrition had shorter overall survival(P<0.001)than those who did not.Cystine indeed robustly promotes colon cancer cell growth in vitro and in immunodeficient mice,predominately by inhibiting SESN2 transcription via the GCN2-ATF4 axis,resulting in mTORCl activation.mTORCl inhibitors Rapamycin and Everolimus block cystine-induced cancer cell proliferation.In addition,cystine confers resistance to oxaliplatin and irinotecan chemotherapy by quenching chemotherapy-induced reactive oxygen species via synthesizing glutathione.We demonstrated that dietary deprivation of cystine suppressed colon cancer xenograft growth without weight loss in mice and boosted the antitumor effect of oxaliplatin.These findings indicate that cyst(e)ine;as part of supplemental nutrition,plays an important role in colorectal cancer and manipulation of cyst(e)ine content in nutritional formulations may optimize colorectal cancer patient survival. | Jiao Wu Sai-Ching Jim Yeung Sicheng Liu Aiham Qdaisat Dewei Jiang Wenli Liu Zhuo Cheng Wenjing Liu Haixia Wang Lu Li Zhongmei Zhou Rong Liu Chuanyu Yang Ceshi Chen Runxiang Yang | 2021 | Signal Transduction and Targeted Therapy2021,6,6: | 2 |
| 16 | 初中生对吸烟、烟草及控烟干预教育需求的城乡差异显示文摘目的 分析武汉市初中生对吸烟行为及烟草知识教育的主观需求的城乡差异。方法 采取分层随机整群抽样方法 ,抽取 9所中学 4 71名学生 ,在控烟干预进行过程中收集学生提出的有关吸烟和烟草的问题进行定量分析。采用问卷调查 ,了解目标人群对实施中的控烟干预计划的认识和意愿。结果 城市学生对有关烟草的知识、戒烟、被迫吸烟、烟瘾、吸烟与寿命的问题更感兴趣。农村学生对有关吸烟行为、如何与吸烟者相处的问题更感兴趣。结论 城市学生对烟草知识教育的需求大于农村学生 ,农村学生对吸烟行为教育的需求大于城市学生。 | 王远虹 Carl Anderson Johnson 李燕 Jim Chen 山建国 郭倩 龚洁 | 2002 | 中国学校卫生2002,23,6: | 2 |
| 17 | 基于原子力显微镜测量内耳螺旋器的弹性特征显示文摘应用原子力显微镜分析内耳螺旋器(Corti器)不同部位的弹性特征。采用豚鼠内耳基底膜底回新鲜标本,用原子力显微镜在液相接触式测量,获得不同部位力曲线。经计算,对应Corti器相当于Hensen细胞、外毛细胞、柱细胞、内毛细胞、内指细胞、盖膜的部位及基底膜底面局部,其杨氏模量均值分别为46±1.7、59±0.9、250±31、140±2.8、430±29.9、210±7.2和230±8.8kPa。结果表明,基底膜径向排列的组织结构不同,杨氏模量存在明显差异,在整块基底膜标本上测量Corti器各结构的杨氏模量能更准确地反映它们在生理状态下的弹性特征。 | 杨琳 戴培东 张天宇 丁光宏 王克强 Jim X Chen 王正敏 | 2009 | 生物物理学报2009,25,4: | 2 |
| 18 | 学生保健品服用状况的影响因素分析显示文摘 | 柳春红 XieBin 李燕 C.Anderson Johnson Chen Jim | 2002 | 卫生研究2002,31,4: | 1 |
| 19 | Preparation, luminescence and sintering properties of Ce-doped BaHfO3 phosphors显示文摘 | JIM Y JIANG D Y CHEN J J QIN L S XU Y P FENG T SHI J L | 2006 | Optical Materials2006,28,: | 1 |
| 20 | Reversibility of established diabetic glomerulopathy by anti-TGF-beta antibodies in db/db mice显示文摘 | Chen S Iglesias de la Cruz ME Jim B | | 0,,: | 1 |