Human pose estimation has received significant attention recently due to its various applications in the real world. As the performance of the state-of-the-art human pose estimation methods can be improved by deep lea...Human pose estimation has received significant attention recently due to its various applications in the real world. As the performance of the state-of-the-art human pose estimation methods can be improved by deep learning, this paper presents a comprehensive survey of deep learning based human pose estimation methods and analyzes the methodologies employed. We summarize and discuss recent works with a methodologybased taxonomy. Single-person and multi-person pipelines are first reviewed separately. Then, the deep learning techniques applied in these pipelines are compared and analyzed. The datasets and metrics used in this task are also discussed and compared. The aim of this survey is to make every step in the estimation pipelines interpretable and to provide readers a readily comprehensible explanation. Moreover, the unsolved problems and challenges for future research are discussed.展开更多
Nanoarchitectonics provide versatile opportunities for modifying the properties of coordination polymers(CP) other than molecular engineering.Spatial-controlled etching focuses on the controlled disassembly of the fra...Nanoarchitectonics provide versatile opportunities for modifying the properties of coordination polymers(CP) other than molecular engineering.Spatial-controlled etching focuses on the controlled disassembly of the frameworks.The etching method provides an excellent opportunity for tailoring the properties and functions of the CPs.Here,we discuss the mechanism for controlled etching of the CPs and summarized the two main strategies utilized so far.Several examples are illustrated to demonstrate recent developments in this area.Moreover,advantages of the etched CPs are summarized in several important applications,including energy storage,catalysis and nanomedicine.展开更多
A novel benzyl cation-triggered site-selective sp^(2) C—H phosphorylation and etherification was developed. This reaction was conducted under the transition metal-free conditions through cation migration via dearomat...A novel benzyl cation-triggered site-selective sp^(2) C—H phosphorylation and etherification was developed. This reaction was conducted under the transition metal-free conditions through cation migration via dearomatization. Under the reaction conditions, the derivatives of naphthalenes, benzofurans and benzo[b]thiophenes all can be transformed into the corresponding products in good to excellent yields. It provides a method to construct sp^(2) C—P and sp^(2) C—O bonds as well as a new strategy for benzylic activation-triggered sp^(2) C—H functionalization.展开更多
基金supported by the National Natural Science Foundation of China (Nos. 61673192, 61573219, and 61472163)the Fund for Outstanding Youth of Shandong Provincial High School (No. ZR2016JL023)+1 种基金the National High-Tech Research and Development Plan (No. 2015AA042306)the National Social Science Fund Project (No. 13CTQ010)
文摘Human pose estimation has received significant attention recently due to its various applications in the real world. As the performance of the state-of-the-art human pose estimation methods can be improved by deep learning, this paper presents a comprehensive survey of deep learning based human pose estimation methods and analyzes the methodologies employed. We summarize and discuss recent works with a methodologybased taxonomy. Single-person and multi-person pipelines are first reviewed separately. Then, the deep learning techniques applied in these pipelines are compared and analyzed. The datasets and metrics used in this task are also discussed and compared. The aim of this survey is to make every step in the estimation pipelines interpretable and to provide readers a readily comprehensible explanation. Moreover, the unsolved problems and challenges for future research are discussed.
基金supported by National Natural Science Foundation of China (No.21473059)。
文摘Nanoarchitectonics provide versatile opportunities for modifying the properties of coordination polymers(CP) other than molecular engineering.Spatial-controlled etching focuses on the controlled disassembly of the frameworks.The etching method provides an excellent opportunity for tailoring the properties and functions of the CPs.Here,we discuss the mechanism for controlled etching of the CPs and summarized the two main strategies utilized so far.Several examples are illustrated to demonstrate recent developments in this area.Moreover,advantages of the etched CPs are summarized in several important applications,including energy storage,catalysis and nanomedicine.
基金support by Hainan Provincial Natural Science Foun-dation of China(220QN180,2019RC028,2019RC129,221QN173,221QN172)Hainan University Start-up Funds(KYQD(ZR)1854 and KYQD(ZR)1857)was appreciated.
文摘A novel benzyl cation-triggered site-selective sp^(2) C—H phosphorylation and etherification was developed. This reaction was conducted under the transition metal-free conditions through cation migration via dearomatization. Under the reaction conditions, the derivatives of naphthalenes, benzofurans and benzo[b]thiophenes all can be transformed into the corresponding products in good to excellent yields. It provides a method to construct sp^(2) C—P and sp^(2) C—O bonds as well as a new strategy for benzylic activation-triggered sp^(2) C—H functionalization.
