Promoting the construction of Guangdong-Hong Kong-Macao Greater Bay Area is a major policy decision and national strategy made by the central government of China,which significantly supports the Belt and Road Initiati...Promoting the construction of Guangdong-Hong Kong-Macao Greater Bay Area is a major policy decision and national strategy made by the central government of China,which significantly supports the Belt and Road Initiative and maintains the long-term prosperity for the whole country.As an important part of the Guangdong-Hong Kong-Macao Greater Bay Area,Foshan needs to find its own position and direction in order to accelerate the joint development with other cities through five measures.展开更多
The uncertainty of distributed generation energy has dramatically challenged the coordinated development of distribution networks at all levels.This paper focuses on the multi-time-scale regulation model of distribute...The uncertainty of distributed generation energy has dramatically challenged the coordinated development of distribution networks at all levels.This paper focuses on the multi-time-scale regulation model of distributed generation energy under normal conditions.The simulation results of the example verify the self-optimization characteristics and the effectiveness of real-time dispatching of the distribution network control technology at all levels under multiple time scales.展开更多
The internal development and outsourced development of information systems have been studied intensively, but little research has been conducted on the joint development mode. This paper describes the benefits and pro...The internal development and outsourced development of information systems have been studied intensively, but little research has been conducted on the joint development mode. This paper describes the benefits and problems encountered in the joint development of accounting management information systems based on a real case. The case illustrates some distinct advantages, such as full control over the development schedule, the flexibility with resource allocation, and insurance for sustained active participation by the end-users. However, this development mode also involves potential problems, e.g., potential conflicts arising from diverse backgrounds and cultures of the various stakeholders and challenges to manage personnel from outside partners.展开更多
There is a long tradition of friendly exchange and cooperation between the Chinese Academy of Sciences (CAS) and the universities in Hong Kong. In recent years, both sides have been increasingly realizing the importan...There is a long tradition of friendly exchange and cooperation between the Chinese Academy of Sciences (CAS) and the universities in Hong Kong. In recent years, both sides have been increasingly realizing the importance of furthering their Collaboration and exchange and the cooperation has become more active, laying greater展开更多
发育性髋关节发育不良(developmental dysplasia of the hip,DDH)是婴幼儿时期常见的骨骼系统疾病之一。DDH在婴幼儿期容易被忽视,如不能及早诊断,错失最佳治疗时机,会影响髋关节功能,难以纠正关节畸形,进而导致终身残疾。目前髋关节超...发育性髋关节发育不良(developmental dysplasia of the hip,DDH)是婴幼儿时期常见的骨骼系统疾病之一。DDH在婴幼儿期容易被忽视,如不能及早诊断,错失最佳治疗时机,会影响髋关节功能,难以纠正关节畸形,进而导致终身残疾。目前髋关节超声检查已成为公认的早期DDH影像学诊断金标准,包括选择性超声筛查模式和普遍性超声筛查模式。近年来,DDH筛查网络体系(即转诊、筛查、确诊、治疗一体化的网络体系)已在中国部分地区实施,可将DDH的初诊时间提前,并保证诊治流程的系统化。人工智能影像技术也逐步应用于婴幼儿DDH的辅助诊断。本文概述了DDH患儿早期接受超声筛查的必要性,并对不同超声筛查技术和国内外筛查模式及体系进行综述,为今后DDH患儿实施有效的髋关节超声筛查和综合干预提供参考。展开更多
目的观察3D打印模型及模拟手术在发育性髋关节发育不良(developmental dysplasia of the hip,DDH)全髋关节置换术(total hip arthroplasty,THA)中的应用效果。方法以2020年8月至2022年10月联勤保障部队第九二二医院骨一科收治的60例DDH...目的观察3D打印模型及模拟手术在发育性髋关节发育不良(developmental dysplasia of the hip,DDH)全髋关节置换术(total hip arthroplasty,THA)中的应用效果。方法以2020年8月至2022年10月联勤保障部队第九二二医院骨一科收治的60例DDH患者作为研究对象,采用随机数字表法进行分组,每组各30例。A组按照常规操作完成THA术,B组采用3D打印技术制作患髋实体模型进行手术方案设计和模拟手术。A组男13例,女17例;年龄36~69岁,平均(54.81±7.03)岁。B组男10例,女20例;年龄35~70岁,平均(52.09±7.44)岁。比较两组手术指标、术后恢复指标、术前及术后假体匹配率、术中股骨劈裂骨折发生率、术后髋臼-股骨联合前倾角、并发症发生率、术前及术后4周髋关节功能[Harris髋关节评分(Harris hip score,HHS)]。结果B组术中出血量较A组少,手术时间、术后下地时间、住院时间较A组短(P<0.05);B组术前、术后假体匹配率(90.00%)较A组(30.00%)高,术中股骨劈裂骨折发生率(0.00%)较A组(50.00%)低(P<0.05);术后4周,两组HHS评分均较术前上升(P<0.05),组间对比差异无统计学意义(P>0.05);两组术后髋臼-股骨联合前倾角比较差异无统计学意义(P>0.05);两组患者术后均未出现股神经及坐骨神经损伤、假体松动及脱位、肺栓塞、下肢深静脉血栓、假体周围骨折、关节感染等并发症。结论3D打印模型及模拟手术应用于DDH患者THA术中效果确切,能提高假体匹配率,降低术中股骨劈裂骨折发生率,缩短手术时间,减少术中出血量,促进康复,值得临床推广应用。展开更多
文摘Promoting the construction of Guangdong-Hong Kong-Macao Greater Bay Area is a major policy decision and national strategy made by the central government of China,which significantly supports the Belt and Road Initiative and maintains the long-term prosperity for the whole country.As an important part of the Guangdong-Hong Kong-Macao Greater Bay Area,Foshan needs to find its own position and direction in order to accelerate the joint development with other cities through five measures.
文摘The uncertainty of distributed generation energy has dramatically challenged the coordinated development of distribution networks at all levels.This paper focuses on the multi-time-scale regulation model of distributed generation energy under normal conditions.The simulation results of the example verify the self-optimization characteristics and the effectiveness of real-time dispatching of the distribution network control technology at all levels under multiple time scales.
基金Supported partially by the National Natural Science Foundation of China (No. 70671103) a special grant from the Renmin Uni-versity of China
文摘The internal development and outsourced development of information systems have been studied intensively, but little research has been conducted on the joint development mode. This paper describes the benefits and problems encountered in the joint development of accounting management information systems based on a real case. The case illustrates some distinct advantages, such as full control over the development schedule, the flexibility with resource allocation, and insurance for sustained active participation by the end-users. However, this development mode also involves potential problems, e.g., potential conflicts arising from diverse backgrounds and cultures of the various stakeholders and challenges to manage personnel from outside partners.
文摘There is a long tradition of friendly exchange and cooperation between the Chinese Academy of Sciences (CAS) and the universities in Hong Kong. In recent years, both sides have been increasingly realizing the importance of furthering their Collaboration and exchange and the cooperation has become more active, laying greater
文摘发育性髋关节发育不良(developmental dysplasia of the hip,DDH)是婴幼儿时期常见的骨骼系统疾病之一。DDH在婴幼儿期容易被忽视,如不能及早诊断,错失最佳治疗时机,会影响髋关节功能,难以纠正关节畸形,进而导致终身残疾。目前髋关节超声检查已成为公认的早期DDH影像学诊断金标准,包括选择性超声筛查模式和普遍性超声筛查模式。近年来,DDH筛查网络体系(即转诊、筛查、确诊、治疗一体化的网络体系)已在中国部分地区实施,可将DDH的初诊时间提前,并保证诊治流程的系统化。人工智能影像技术也逐步应用于婴幼儿DDH的辅助诊断。本文概述了DDH患儿早期接受超声筛查的必要性,并对不同超声筛查技术和国内外筛查模式及体系进行综述,为今后DDH患儿实施有效的髋关节超声筛查和综合干预提供参考。
文摘目的观察3D打印模型及模拟手术在发育性髋关节发育不良(developmental dysplasia of the hip,DDH)全髋关节置换术(total hip arthroplasty,THA)中的应用效果。方法以2020年8月至2022年10月联勤保障部队第九二二医院骨一科收治的60例DDH患者作为研究对象,采用随机数字表法进行分组,每组各30例。A组按照常规操作完成THA术,B组采用3D打印技术制作患髋实体模型进行手术方案设计和模拟手术。A组男13例,女17例;年龄36~69岁,平均(54.81±7.03)岁。B组男10例,女20例;年龄35~70岁,平均(52.09±7.44)岁。比较两组手术指标、术后恢复指标、术前及术后假体匹配率、术中股骨劈裂骨折发生率、术后髋臼-股骨联合前倾角、并发症发生率、术前及术后4周髋关节功能[Harris髋关节评分(Harris hip score,HHS)]。结果B组术中出血量较A组少,手术时间、术后下地时间、住院时间较A组短(P<0.05);B组术前、术后假体匹配率(90.00%)较A组(30.00%)高,术中股骨劈裂骨折发生率(0.00%)较A组(50.00%)低(P<0.05);术后4周,两组HHS评分均较术前上升(P<0.05),组间对比差异无统计学意义(P>0.05);两组术后髋臼-股骨联合前倾角比较差异无统计学意义(P>0.05);两组患者术后均未出现股神经及坐骨神经损伤、假体松动及脱位、肺栓塞、下肢深静脉血栓、假体周围骨折、关节感染等并发症。结论3D打印模型及模拟手术应用于DDH患者THA术中效果确切,能提高假体匹配率,降低术中股骨劈裂骨折发生率,缩短手术时间,减少术中出血量,促进康复,值得临床推广应用。
