Construction engineering has a certain diversity and complexity, including many parts, including foundation and foundation, main body, decoration, roof engineering and so on. In the actual engineering construction, du...Construction engineering has a certain diversity and complexity, including many parts, including foundation and foundation, main body, decoration, roof engineering and so on. In the actual engineering construction, due to the limitation of many factors, in order to meet the requirements of engineering construction quality and progress, we need to achieve the expected goal through supervision. As an important part of construction engineering, the quality of civil construction is particularly important. Due to the complexity of civil construction, any negligence will cause engineering quality problems, so it is very important to strengthen the quality management of civil construction. In terms of quality management, supervisors bear certain obligations and responsibilities. Supervisors should grasp the key points of supervision, implement supervision work and ensure project quality.展开更多
During the construction of construction projects, safety supervision plays an extremely important role. Through safety supervision, safety risks can be effectively avoided. At the same time, risk types generated in th...During the construction of construction projects, safety supervision plays an extremely important role. Through safety supervision, safety risks can be effectively avoided. At the same time, risk types generated in the construction stage of construction projects can be systematically analyzed, and then targeted risk prevention and control measures can be taken to ensure that the overall project construction can advance in an orderly manner, and achieve the goal of high-quality completion of the whole project.展开更多
Since the invention of lasers,spatial-light-modulated laser processing has become a powerful tool for various applications.It enables multidimensional and dynamic modulation of the laser beam,which significantly impro...Since the invention of lasers,spatial-light-modulated laser processing has become a powerful tool for various applications.It enables multidimensional and dynamic modulation of the laser beam,which significantly improves the processing efficiency,accuracy,and flexibility,and presents wider prospects over traditional mechanical technologies for machining three-dimensional,hard,brittle,or transparent materials.In this review,we introduce:(1)The role of spatial light modulation technology in the development of femtosecond laser manufacturing;(2)the structured light generated by spatial light modulation and its generation methods;and(3)representative applications of spatial-light-modulated femtosecond laser manufacturing,including aberration correction,parallel processing,focal field engineering,and polarization control.Finally,we summarize the present challenges in the field and possible future research.展开更多
文摘Construction engineering has a certain diversity and complexity, including many parts, including foundation and foundation, main body, decoration, roof engineering and so on. In the actual engineering construction, due to the limitation of many factors, in order to meet the requirements of engineering construction quality and progress, we need to achieve the expected goal through supervision. As an important part of construction engineering, the quality of civil construction is particularly important. Due to the complexity of civil construction, any negligence will cause engineering quality problems, so it is very important to strengthen the quality management of civil construction. In terms of quality management, supervisors bear certain obligations and responsibilities. Supervisors should grasp the key points of supervision, implement supervision work and ensure project quality.
文摘During the construction of construction projects, safety supervision plays an extremely important role. Through safety supervision, safety risks can be effectively avoided. At the same time, risk types generated in the construction stage of construction projects can be systematically analyzed, and then targeted risk prevention and control measures can be taken to ensure that the overall project construction can advance in an orderly manner, and achieve the goal of high-quality completion of the whole project.
基金This work was supported by the National Key R&D Program of China(Grant No.2021YFB2802000)the National Natural Science Foundation of China(Grant Nos.61827826,62175086,62131018)+1 种基金the Natural Science Foundation of Jilin Province(Grant No.20220101107JC)the Education Department of Jilin Province(Grant No.JJKH20221003KJ).
文摘Since the invention of lasers,spatial-light-modulated laser processing has become a powerful tool for various applications.It enables multidimensional and dynamic modulation of the laser beam,which significantly improves the processing efficiency,accuracy,and flexibility,and presents wider prospects over traditional mechanical technologies for machining three-dimensional,hard,brittle,or transparent materials.In this review,we introduce:(1)The role of spatial light modulation technology in the development of femtosecond laser manufacturing;(2)the structured light generated by spatial light modulation and its generation methods;and(3)representative applications of spatial-light-modulated femtosecond laser manufacturing,including aberration correction,parallel processing,focal field engineering,and polarization control.Finally,we summarize the present challenges in the field and possible future research.
