The United States is a leading nation in the development of synthetic biology,an emerging engineering discipline to create,control and reprogram biological systems.With strategic investment from its government agencie...The United States is a leading nation in the development of synthetic biology,an emerging engineering discipline to create,control and reprogram biological systems.With strategic investment from its government agencies,the U.S.has established numerous research centers and programs in synthetic biology,enabling significant advances in foundational tool development and practical applications ranging from bioenergy,biomanufacturing,to biomedicine.To maintain its leadership in synthetic biology,U.S,has conducted several roadmap studies to provide strategic visions and action recommendations.Here we will provide a brief overview of the major research programs and roadmap studies of synthetic biology in the U.S.展开更多
针对双目视觉测距中测量误差大、图像信息单一、实时性差等问题,提出一种基于ORB(oriented fast and rotated brief)特征的双目测距方法。对视频帧进行中值滤波处理,提取图像ORB特征,通过实验选出匹配效果最好的汉明距离。对筛选后的匹...针对双目视觉测距中测量误差大、图像信息单一、实时性差等问题,提出一种基于ORB(oriented fast and rotated brief)特征的双目测距方法。对视频帧进行中值滤波处理,提取图像ORB特征,通过实验选出匹配效果最好的汉明距离。对筛选后的匹配点进行RANSAC(random sample consensus)模型估计,去除误匹配,分析视差和真实距离的模型关系,构建最优的测距模型并在实验平台上进行验证。结果表明:所提方法比其他双目测距方法具有测距精确、运行速度快、鲁棒性强的优势,能够实时显示图中特征的距离信息。展开更多
"Standards there as high as achieved elsewhere";news delivered to the world by Science in China Approximately forty years ago when China was undergoing a period of great difficulty, Science in China,
Beijing,Hanoi vow to advance traditional ties.China rolled out the red carpet on August 19 for Vietnam’s top leader To Lam,and the two socialist countries vowed to further enhance their comprehensive strategic cooper...Beijing,Hanoi vow to advance traditional ties.China rolled out the red carpet on August 19 for Vietnam’s top leader To Lam,and the two socialist countries vowed to further enhance their comprehensive strategic cooperative partnership and advance the building of a community with a shared future that carries strategic significance.展开更多
基金We thank the U.S.National Institutes of Health(GM077596)Roy J.Carver Charitable Trust(13-4257)+1 种基金U.S.Department of Energy(ER65474)Carl R.Woese Institute for Genomic Biology at the University of Illinois at Urbana-Champaign,and the Energy Efficiency&Resources Technology Program of the Korea Institute of Energy Technology Evaluation and Planning(KETEP)funded by the Ministry of Trade,Industry&Energy,Republic of Korea(20153030091450)for financial support in our development and application of synthetic biology technologies.In addition,we state that there is no conflict of interest.
文摘The United States is a leading nation in the development of synthetic biology,an emerging engineering discipline to create,control and reprogram biological systems.With strategic investment from its government agencies,the U.S.has established numerous research centers and programs in synthetic biology,enabling significant advances in foundational tool development and practical applications ranging from bioenergy,biomanufacturing,to biomedicine.To maintain its leadership in synthetic biology,U.S,has conducted several roadmap studies to provide strategic visions and action recommendations.Here we will provide a brief overview of the major research programs and roadmap studies of synthetic biology in the U.S.
文摘针对双目视觉测距中测量误差大、图像信息单一、实时性差等问题,提出一种基于ORB(oriented fast and rotated brief)特征的双目测距方法。对视频帧进行中值滤波处理,提取图像ORB特征,通过实验选出匹配效果最好的汉明距离。对筛选后的匹配点进行RANSAC(random sample consensus)模型估计,去除误匹配,分析视差和真实距离的模型关系,构建最优的测距模型并在实验平台上进行验证。结果表明:所提方法比其他双目测距方法具有测距精确、运行速度快、鲁棒性强的优势,能够实时显示图中特征的距离信息。
文摘"Standards there as high as achieved elsewhere";news delivered to the world by Science in China Approximately forty years ago when China was undergoing a period of great difficulty, Science in China,
文摘Beijing,Hanoi vow to advance traditional ties.China rolled out the red carpet on August 19 for Vietnam’s top leader To Lam,and the two socialist countries vowed to further enhance their comprehensive strategic cooperative partnership and advance the building of a community with a shared future that carries strategic significance.
