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| 1 | Learning continuous coupled multi-controller coefficients based on actor-critic algorithm for lower-limb exoskeleton显示文摘Dear editor,Human-powered lower exoskeletons are widely studied by academia and industry with regard to human locomotion and strength augmentation.Technological developments have boosted the use of machine learning toward improving the control performance of exoskeleton systems. | Guangkui SONG Rui HUANG Hong CHENG Jing QIU Qiming CHENG Shuai FAN | 2021 | Science China(Information Sciences)2021，64，5： | 1 |
| 2 | Erratum to“3D collagen matrices modulate the transcriptional trajectory of bone marrow hematopoietic progenitors into macrophage lineage commitment”[Bioact.Mater.10C(April 2022)255-268]显示文摘The publisher regrets the omission of the below footnote for the author Dr.Nu Zhang.The publisher would like to apologise for any inconvenience caused. | Pan Zhang Linmu Xu Jingsong Gao Guangkui Xu Yanping Song Guang Li Jingjing Ren Yunjie Zhang Cheng Yang Yu Zhang Ruiheng Xie Nu Zhang Hui Yang | 2023 | Bioactive Materials2023，，4： | 1 |
| 3 | Detection and analysis of gas tightness of continuous annealing furnaces显示文摘When a cold rolled strip is being treated in a continuous annealing furnace which is full of protective gas,the gas tightness of the furnace body,the connected facilities and the gas channels become an important indicator that directly affects the product's surface quality and shows the technical level of the design,the manufacture and the installation.By considering the problems of the gas tightness of a vertical annealing furnace in the installation and maintenance,this thesis evaluates the gas tightness indicator and gas tightness related level of the furnace body and the circulation duct,while studying and analyzing the technologies of negative-pressure leak detection and sealing. | Hu Guangkui Song Ruhua | 2008 | Baosteel Technical Research2008，2，1： | 0 |
| 4 | 3D collagen matrices modulate the transcriptional trajectory of bone marrow hematopoietic progenitors into macrophage lineage commitment显示文摘Physical signals provided by the extracellular matrix(ECM)are key microenvironmental parameters for the fate decision of hematopoietic stem and progenitor cells(HSPC)in bone marrow.Insights into cell-ECM interactions are critical for advancing HSC-based tissue engineering.Herein,we employed collagen hydrogels and collagen-alginate hydrogels of defined stiffness to study the behaviors of hematopoietic progenitor cells(HPCs).Three-dimensional(3D)collagen hydrogels with a stiffness of 45 Pa were found to promote HPC maintenance and colony formation of monocyte/macrophage progenitors.Using single-cell RNA sequencing(scRNA-seq),we also characterized the comprehensive transcriptional profiles of cells randomly selected from two-dimensional(2D)and 3D hydrogels.A distinct maturation trajectory from HPCs into macrophages within the 3D microenvironment was revealed by these results.3D-derived macrophages expressed high levels of various cytokines and chemokines,such as Saa3,Cxcl2,Socs3 and Tnf.Furthermore,enhanced communication between 3D-macrophages and other hematopoietic clusters based on ligand-repair interactions was demonstrated through bioinformatic analyses.Our research underlines the regulatory role of matrix-dimensionality in HPC differentiation and therefore probably be applied to the generation of specialized macrophages. | Pan Zhang Linmu Xu Jingsong Gao Guangkui Xu Yanping Song Guang Li Jingjing Ren Yunjie Zhang Cheng Yang Yu Zhang Ruiheng Xie Nu Zhang Hui Yang | 2022 | Bioactive Materials2022，7，4： | 0 |
| 5 | Adaptive compensation for time-varying uncertainties in model-based control of lower-limb exoskeleton systems显示文摘Dear editor,Exoskeletons are widely used in human locomotion assistance and strength augmentation to enhance strength and endurance, wherein strategies based on model-based control are extremely sensitive to errors in the dynamic models. Additionally, the unpredictable human-exoskeleton interaction force can unbalance the pilot. Therefore, learning methods were utilized to improve the accuracy of the dynamic model [1, 2]. The modeling of dynamic model was decoupled based on the direction of interest [3]. | Guangkui SONG Rui HUANG Hong CHENG Jing QIU Shuai FAN | 2021 | Science China(Information Sciences)2021，64，11： | 0 |
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