To support mission-critical applications, such as factory automation and autonomous driving, the ultra-reliable low latency communications (URLLC) is adopted in the fifth generation (5G) mobile communications network,...To support mission-critical applications, such as factory automation and autonomous driving, the ultra-reliable low latency communications (URLLC) is adopted in the fifth generation (5G) mobile communications network, which requires high level of reliability and low latency. Naturally, URLLC in the future 6G is expected to have a better capability than its 5G version which poses an unprecedented challenge to us. Fortunately, the potential solution can still be found in the well-known classical Shannon information theory. Since the latency constraint can be represented equivalently by blocklength, channel coding at finite blocklength plays an important role in the theoretic analysis of URLLC. Applying these achievements in rapidly development of massive MIMO techniques gives rise to a new theory on space time exchanging. It tells us that channel coding can also be performed in space domain, since it is capable of providing the same coding rate as that in time domain. This space time exchanging theory points out an exciting and feasible direction for us to further reduce latency in 6G URLLC. .展开更多
Objective: To evaluate the effect of salidroside on oxygen and glucose deprivation(OGD)-treated NT2 cells and its underlying mechanisms of action.Methods: Retinoic acid was used to induce the differentiation of NT2 ce...Objective: To evaluate the effect of salidroside on oxygen and glucose deprivation(OGD)-treated NT2 cells and its underlying mechanisms of action.Methods: Retinoic acid was used to induce the differentiation of NT2 cells into neurons. The effects of salidroside on survival, apoptosis, inflammatory response, and oxidative stress of neurons undergoing OGD were evaluated. Using precursor cells as controls, the effect of salidroside on the differentiation progression of OGDtreated cells was evaluated. In addition, the effect of erastin, a ferroptosis inducer, on NT2 cells was examined to investigate the underlying mechanisms of neuroprotective action of salidroside.Results: Salidroside alleviated the effects of OGD on neuronal survival, apoptosis, inflammation, and oxidative stress, and promoted NT2 cell differentiation. Moreover, salidroside prevented ferroptosis of OGD-treated cells, which was abolished following erastin treatment, indicating that ferroptosis mediated the regulatory pathway of salidroside.Conclusions: Salidroside attenuates OGD-induced neuronal injury by inhibiting ferroptosis and promotes neuronal differentiation.展开更多
Background Hand ge stur e interfaces are dedicated programs that principally perform hand tracking and hand gesture prediction to provide alternative controls and interaction methods.They take advantage of one of the ...Background Hand ge stur e interfaces are dedicated programs that principally perform hand tracking and hand gesture prediction to provide alternative controls and interaction methods.They take advantage of one of the most natural ways of interaction and communication,proposing novel input and showing great potential in the field of the human-computer interaction.Developing a flexible and rich hand gesture interface is known to be a time-consuming and arduous task.Previously published studies have demonstrated the significance of the finite-state-machine(FSM)approach when mapping detected gestures to GUI actions.Methods In our hand gesture interface,we broadened the FSM approach by utilizing gesture-specific attributes,such as distance between hands,distance from the camera,and time of occurrences,to enable users to perform unique GUI actions.These attributes are obtained from hand gestures detected by the RealSense SDK employed in our hand gesture interface.By means of these gesture-specific attributes,users can activate static gestures and perform them as dynamic gestures.We also provided supplementary features to enhance the efficiency,convenience,and user-friendliness of our hand gesture interface.Moreover,we developed a complementary application for recording hand gestures by capturing hand keypoints in depth and color images to facilitate the generation of hand gesture datasets.Results We conducted a small-scale user survey with fifteen subjects to test and evaluate our hand gesture interface.Anonymous feedback obtained from the users indicates that our hand gesture interface is adequately facile and self-explanatory to use.In addition,we received constructive feedback about minor flaws regarding the responsiveness of the interface.Conclusions We proposed a hand gesture interface along with key concepts to attain use r-friendlines s and effectiveness in the control of existing GUIs.展开更多
In software development process,the last step is usually the Graphic User Interface(GUI) test,which is part of the final user experience(UE) test.Traditionally,there exist some GUI test tools in the market,such as Abb...In software development process,the last step is usually the Graphic User Interface(GUI) test,which is part of the final user experience(UE) test.Traditionally,there exist some GUI test tools in the market,such as Abbot Java GUI Test Framework and Pounder,in which testers pre-configure in the script all desired actions and instructions for the computer,nonetheless requiring too much of invariance of GUI environment;and they require reconfiguration in case of GUI changes,therefore still to be done mostly manually and hard for non-programmer testers to.Consequently,we proposed GUI tests by image recognition to automate the last process;we managed to innovate upon current algorithms such as SIFT and Random Fern,from which we develop the new algorithm scheme retrieving most efficient feature and dispelling inefficient part of each algorithm.Computers then apply the algorithm,to search for target patterns themselves and take subsequent actions such as manual mouse,keyboard and screen I/O automatically to test the GUI without any manual instructions.Test results showed that the proposed approach can accelerate GUI test largely compared to current benchmarks.展开更多
文摘To support mission-critical applications, such as factory automation and autonomous driving, the ultra-reliable low latency communications (URLLC) is adopted in the fifth generation (5G) mobile communications network, which requires high level of reliability and low latency. Naturally, URLLC in the future 6G is expected to have a better capability than its 5G version which poses an unprecedented challenge to us. Fortunately, the potential solution can still be found in the well-known classical Shannon information theory. Since the latency constraint can be represented equivalently by blocklength, channel coding at finite blocklength plays an important role in the theoretic analysis of URLLC. Applying these achievements in rapidly development of massive MIMO techniques gives rise to a new theory on space time exchanging. It tells us that channel coding can also be performed in space domain, since it is capable of providing the same coding rate as that in time domain. This space time exchanging theory points out an exciting and feasible direction for us to further reduce latency in 6G URLLC. .
基金supported by the Zhejiang Traditional Chinese Medicine Science and Technology Plan Project(2021ZB027,2023ZL267)Zhejiang Medical and Health Platform Project of China(2019KY002,2019RC092).
文摘Objective: To evaluate the effect of salidroside on oxygen and glucose deprivation(OGD)-treated NT2 cells and its underlying mechanisms of action.Methods: Retinoic acid was used to induce the differentiation of NT2 cells into neurons. The effects of salidroside on survival, apoptosis, inflammatory response, and oxidative stress of neurons undergoing OGD were evaluated. Using precursor cells as controls, the effect of salidroside on the differentiation progression of OGDtreated cells was evaluated. In addition, the effect of erastin, a ferroptosis inducer, on NT2 cells was examined to investigate the underlying mechanisms of neuroprotective action of salidroside.Results: Salidroside alleviated the effects of OGD on neuronal survival, apoptosis, inflammation, and oxidative stress, and promoted NT2 cell differentiation. Moreover, salidroside prevented ferroptosis of OGD-treated cells, which was abolished following erastin treatment, indicating that ferroptosis mediated the regulatory pathway of salidroside.Conclusions: Salidroside attenuates OGD-induced neuronal injury by inhibiting ferroptosis and promotes neuronal differentiation.
文摘Background Hand ge stur e interfaces are dedicated programs that principally perform hand tracking and hand gesture prediction to provide alternative controls and interaction methods.They take advantage of one of the most natural ways of interaction and communication,proposing novel input and showing great potential in the field of the human-computer interaction.Developing a flexible and rich hand gesture interface is known to be a time-consuming and arduous task.Previously published studies have demonstrated the significance of the finite-state-machine(FSM)approach when mapping detected gestures to GUI actions.Methods In our hand gesture interface,we broadened the FSM approach by utilizing gesture-specific attributes,such as distance between hands,distance from the camera,and time of occurrences,to enable users to perform unique GUI actions.These attributes are obtained from hand gestures detected by the RealSense SDK employed in our hand gesture interface.By means of these gesture-specific attributes,users can activate static gestures and perform them as dynamic gestures.We also provided supplementary features to enhance the efficiency,convenience,and user-friendliness of our hand gesture interface.Moreover,we developed a complementary application for recording hand gestures by capturing hand keypoints in depth and color images to facilitate the generation of hand gesture datasets.Results We conducted a small-scale user survey with fifteen subjects to test and evaluate our hand gesture interface.Anonymous feedback obtained from the users indicates that our hand gesture interface is adequately facile and self-explanatory to use.In addition,we received constructive feedback about minor flaws regarding the responsiveness of the interface.Conclusions We proposed a hand gesture interface along with key concepts to attain use r-friendlines s and effectiveness in the control of existing GUIs.
基金supported by the National Natural Science Foundation of China(Nos.61572316,61133009)National Hightech R&D Program of China(863 Program)(Grant No.2015AA015904)+3 种基金the Science and Technology Commission of Shanghai Municipality Program(No.13511505000)the Interdisciplinary Program of Shanghai Jiao Tong University(No.14JCY10)a grant from the Research Grants Council of Hong Kong(Project No.:28200215)a grant from The Education University of Hong Kong(Project No:FLASS/DRF/ECR-7)
文摘In software development process,the last step is usually the Graphic User Interface(GUI) test,which is part of the final user experience(UE) test.Traditionally,there exist some GUI test tools in the market,such as Abbot Java GUI Test Framework and Pounder,in which testers pre-configure in the script all desired actions and instructions for the computer,nonetheless requiring too much of invariance of GUI environment;and they require reconfiguration in case of GUI changes,therefore still to be done mostly manually and hard for non-programmer testers to.Consequently,we proposed GUI tests by image recognition to automate the last process;we managed to innovate upon current algorithms such as SIFT and Random Fern,from which we develop the new algorithm scheme retrieving most efficient feature and dispelling inefficient part of each algorithm.Computers then apply the algorithm,to search for target patterns themselves and take subsequent actions such as manual mouse,keyboard and screen I/O automatically to test the GUI without any manual instructions.Test results showed that the proposed approach can accelerate GUI test largely compared to current benchmarks.
