In recent years, with the rapid development of economy and technology, many fields in China have been reformed and innovated and the urbanization process is advancing by leaps and bounds. Especially the intelligent ci...In recent years, with the rapid development of economy and technology, many fields in China have been reformed and innovated and the urbanization process is advancing by leaps and bounds. Especially the intelligent city construction has begun to take shape. Water network, power grid and gas network are the basic guarantee of peoples daily life. Perfecting urban infrastructure construction is an important content to improve peoples quality of life and accelerate the development of urban informatization. Urban gas pipeline network is laid in various underground cities. Intricate is an important channel for gas supply due to a series of problems such as uneven gas construction quality, difficult problem troubleshooting, complex operation of gas equipment and slow data update and scheduling. As a result, pipeline leakage and safety accidents occur frequently. Therefore, promoting the intelligentization of urban gas pipeline network operation and management is the key to current work. In the current electrical engineering field, intelligent technology shows positive advantages, mainly reflected in data collection, storage and editing and automation of gas pipeline network. This paper analyzes the advantages of intelligent management and the application of intelligent and automatic technology in the operation and management of urban gas pipeline network based on the current operation status of urban gas pipeline network.展开更多
Electromechanical equipment is widely used in coal production, so as to improve the efficiency of coal production. However, the long-term operation of mechanical and electrical equipment in coal mines may cause dysfun...Electromechanical equipment is widely used in coal production, so as to improve the efficiency of coal production. However, the long-term operation of mechanical and electrical equipment in coal mines may cause dysfunction, directly affect production efficiency, and endanger the lives and property of workers. The application of troubleshooting technology in the maintenance of mechanical and electrical equipment in coal mines can detect mechanical faults in time and eliminate faults for the first time to ensure the safe operation of mechanical and electrical equipment and the safety and long-term development of coal mine industry.展开更多
Objective: to explore the value of high-quality nursing care of postpartum patients after intravenous fistula infusion. Methods: from January 2020 to December 2020, 50 cases of venous bleeding after arterial fistula t...Objective: to explore the value of high-quality nursing care of postpartum patients after intravenous fistula infusion. Methods: from January 2020 to December 2020, 50 cases of venous bleeding after arterial fistula transfusion in our hospital were divided into two groups. Conventional teams provide nursing services while quality teams provide quality nursing services. Hamilton depression assessment before and after care was compared between the two groups, quality of life, satisfaction, and complication rates were assessed. Results: the quality of life score of the high-quality group was significantly higher than that of the conventional group, and the prevalence rate of depression of Hamilton was lower than that of the conventional group, n < 0.05. The satisfaction of high-quality group was higher than that of conventional group (n < 0.05). The incidence of complications in skilled nursing group was lower than that in conventional group (n < 0.05). Conclusion: it is of high value to adopt high-quality nursing in venous fistula transfusion after delivery, which can reduce complications, reduce bad mood and improve the quality of life.展开更多
Transition metal sulfides (TMSs) have a wide range of applications owing to their intriguing properties.Significant efforts have been devoted to nanostructuring TMSs to enhance their properties and performance,still t...Transition metal sulfides (TMSs) have a wide range of applications owing to their intriguing properties.Significant efforts have been devoted to nanostructuring TMSs to enhance their properties and performance,still there is a high need in general synthesis of TMS nanostructures.Herein,for the first time,a simple solvent free reactive nanocasting approach that integrates solid precursor loading,in-situ sulfuration and carbonization into a single heating step is developed for the universal synthesis of ordered mesoporous TMS@N-doped carbon composites (denoted as OM-TMS@NCs) with methionine (Met) and metal chlorides as the precursors and the mesoporous silica (SBA-15) as the hard template.A series of OM-TMS@NCs with a hexagonal mesostructure,ultra-high surface areas (430-754 m2·g-1),large pore volumes (0.85-1.32 cm3·g-1),and unique TMS stoichiometries,including MoS2,Fe7S8,Co9S8,NiS,Cu7S4 and ZnS,are obtained.Two distinct structure configurations,namely,highly dispersed ultrathin TMS nanosheets within NCs and TMS@NC co-nanowire arrays,can be obtained depending on different metals.The structure evolution of the OM-TMS@NCs over the solvent-free nanocasting process is studied in detail for a deep understanding of the synthesis.As demonstrations,these materials are promising for electrocatalytic hydrogen evolution reaction and lithium ion storage with high performances.展开更多
文摘In recent years, with the rapid development of economy and technology, many fields in China have been reformed and innovated and the urbanization process is advancing by leaps and bounds. Especially the intelligent city construction has begun to take shape. Water network, power grid and gas network are the basic guarantee of peoples daily life. Perfecting urban infrastructure construction is an important content to improve peoples quality of life and accelerate the development of urban informatization. Urban gas pipeline network is laid in various underground cities. Intricate is an important channel for gas supply due to a series of problems such as uneven gas construction quality, difficult problem troubleshooting, complex operation of gas equipment and slow data update and scheduling. As a result, pipeline leakage and safety accidents occur frequently. Therefore, promoting the intelligentization of urban gas pipeline network operation and management is the key to current work. In the current electrical engineering field, intelligent technology shows positive advantages, mainly reflected in data collection, storage and editing and automation of gas pipeline network. This paper analyzes the advantages of intelligent management and the application of intelligent and automatic technology in the operation and management of urban gas pipeline network based on the current operation status of urban gas pipeline network.
文摘Electromechanical equipment is widely used in coal production, so as to improve the efficiency of coal production. However, the long-term operation of mechanical and electrical equipment in coal mines may cause dysfunction, directly affect production efficiency, and endanger the lives and property of workers. The application of troubleshooting technology in the maintenance of mechanical and electrical equipment in coal mines can detect mechanical faults in time and eliminate faults for the first time to ensure the safe operation of mechanical and electrical equipment and the safety and long-term development of coal mine industry.
文摘Objective: to explore the value of high-quality nursing care of postpartum patients after intravenous fistula infusion. Methods: from January 2020 to December 2020, 50 cases of venous bleeding after arterial fistula transfusion in our hospital were divided into two groups. Conventional teams provide nursing services while quality teams provide quality nursing services. Hamilton depression assessment before and after care was compared between the two groups, quality of life, satisfaction, and complication rates were assessed. Results: the quality of life score of the high-quality group was significantly higher than that of the conventional group, and the prevalence rate of depression of Hamilton was lower than that of the conventional group, n < 0.05. The satisfaction of high-quality group was higher than that of conventional group (n < 0.05). The incidence of complications in skilled nursing group was lower than that in conventional group (n < 0.05). Conclusion: it is of high value to adopt high-quality nursing in venous fistula transfusion after delivery, which can reduce complications, reduce bad mood and improve the quality of life.
基金Financial supports from the National Natural Science Foundation of China(Nos.21875153 and 21501125)the Natural Science Foundation of Jiangsu Province(No.BK20150312)+1 种基金the Suzhou Bureau of Science and Technology(No.SYG201637)are much appreciatedWe also thank the Young Thousand Talented Program(2015)of China,the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions and the Project of Scientific and Technologic Infrastructure of Suzhou(No.SZS201708)for supports.
文摘Transition metal sulfides (TMSs) have a wide range of applications owing to their intriguing properties.Significant efforts have been devoted to nanostructuring TMSs to enhance their properties and performance,still there is a high need in general synthesis of TMS nanostructures.Herein,for the first time,a simple solvent free reactive nanocasting approach that integrates solid precursor loading,in-situ sulfuration and carbonization into a single heating step is developed for the universal synthesis of ordered mesoporous TMS@N-doped carbon composites (denoted as OM-TMS@NCs) with methionine (Met) and metal chlorides as the precursors and the mesoporous silica (SBA-15) as the hard template.A series of OM-TMS@NCs with a hexagonal mesostructure,ultra-high surface areas (430-754 m2·g-1),large pore volumes (0.85-1.32 cm3·g-1),and unique TMS stoichiometries,including MoS2,Fe7S8,Co9S8,NiS,Cu7S4 and ZnS,are obtained.Two distinct structure configurations,namely,highly dispersed ultrathin TMS nanosheets within NCs and TMS@NC co-nanowire arrays,can be obtained depending on different metals.The structure evolution of the OM-TMS@NCs over the solvent-free nanocasting process is studied in detail for a deep understanding of the synthesis.As demonstrations,these materials are promising for electrocatalytic hydrogen evolution reaction and lithium ion storage with high performances.
