Digital Application Objectives and Benefit Analysis of BIM Technology in Large-Scale Comprehensive Development Projects

This paper discusses the digital application and benefit analysis of building information model(BIM)technology in the large-scale comprehensive development project of the Guangxi headquarters base.The project covers a total area of 92,100 square meters,with a total construction area of 379,700 square meters,including a variety of architectural forms.Through three-dimensional modeling and simulation analysis,BIM technology significantly enhances the design quality and efficiency,shortens the design cycle by about 20%,and promotes the collaboration and integration of project management,improving the management efficiency by about 25%.During the construction phase,the collision detection and four-dimensional visual management functions of BIM technology have improved construction efficiency by about 15%and saved the cost by about 10%.In addition,BIM technology has promoted green building and sustainable development,achieved the dual improvement of technical and economic indicators and social and economic benefits,set an example for enterprises in digital transformation,and opened up new market businesses.

Digital Application of BIM Technology in the Architectural Design Stage

This paper discusses the digital application of building information model(BIM)technology in the architectural design stage.Taking the large-scale comprehensive development project of Guangxi headquarters base as an example,this paper analyzes in detail how BIM technology promotes the intelligence and refinement of the design process.Through the threedimensional modeling and simulation analysis of BIM technology,the project design has realized the accurate transformation from concept to operation,which not only improves the design efficiency,but also ensures the construction quality and economic benefits.This paper focuses on the application of BIM in the digital design of building structure,the deepening design of steel nodes,as well as the remarkable results in the comprehensive layout optimization of mechanical and electrical pipelines.Through the collision detection and optimization design of the BIM model,the potential design conflicts and construction problems were found and solved at the initial stage of the project,ensuring the efficient promotion and smooth implementation of the project.The research results show that BIM technology,as the core digital tool in the architectural design stage,is of great significance for improving the overall design level of the construction industry and realizing intelligent construction.

Are the coronavirus disease 2019 (COVID-19)-themed applications launched during the pandemic sustainable?

Many digital applications(Apps)were launched during the coronavirus disease 2019(COVID-19)pandemic for various purposes such as information sharing,risk assessment,self-management of symptoms,contact tracing,home monitoring,and decision making.Since the quality of COVID-19-themed Apps varied and was less reliable based on measurements using the mobile Apps rating scale method,some of these Apps are considered useful while some are said to have the potential to harm users.This suggests the need for authorized institutions to validate and ensure the safety and security of these Apps before it was launched in public.This is necessary considering the potential dangers arising from App inaccuracies,as well as the potential misuse of user data due to data breaches.With these considerations in mind,we consider that the vaccine passport is an App with a COVID-19 theme that must be refined and applied sustainably amid the ongoing global crisis and the uncertainty of this pandemic.

Establishment of a new method of digital orthopedic surgery and its widespread clinical application

Objective To create an unique new method of digital orthopedic surgery and widely apply to spinal surgery,treatment of bone and joint injuries,ligament reconstruction and repair,bone minor resection and reconstruction,serious bone and

Research on Digital Practical Training Teaching Under the Background of“Internet+”:Taking the“Front Office Service”Course as an Example

This article aims to explore the application of digitalization in practical training teaching under the background of“Internet+”by taking the teaching of“Front Office Service”in the hotel management and digital operation major as an example.By using digital teaching methods,tools,and practical training methods,this study analyzes the impact of digital practical training teaching on students’mastery of front office service skills as well as explores the ways to implement digital practical training teaching.The research results show that digital practical training teaching can effectively improve students’learning effects and comprehensive quality,and simultaneously has positive significance for cultivating comprehensive hotel management talents that adapt to the needs of the“Internet+”era.

Using modular 3D digital earth applications based on point clouds for the study of complex sites

This article discusses the use of 3D technologies in digital earth applications(DEAs)to study complex sites.These are large areas containing objects with heterogeneous shapes and semantic information.The study proposes that DEAs should be modular,have multi-tier architectures,and be developed as Free and Open Source Software if possible.In DEAs requiring high reliability in the 3D measurements,point clouds are proposed as basis for the 3D Digital digital earth representation.For the development of DEAs,we propose to follow a workflow with four components:data acquisition and processing,data management,data analysis and data visualization.For every component,technological challenges of using 3D technologies are identified and solutions applied for a case study are presented.The case study is a modular 3D DEA developed for the archaeological project Mapping the Via Appia.The 3D DEA allows archaeologists to virtually analyze a complex study area.

Application of the digital matched-filter technique to ultrasonic non-destructive testing

Acoustic-pulse compression is obtained in systems with different timebandwidth products by applying the digital matched-filter technique to ultrasonic non-destructive testing. The signal is linearly frequency -modulated (LFM) pulse and the digitized electrical-excitation signal itself is used as a digital matched filter. Experimental results are in good agreement with theory. Suppressions of side lobes achieve -41.9 dB and -41.5 dB for the Hamming and Gaussian weighted signals respectively. It shows that the application of the digital matched-filter technique improves the performances of a ultrasonic testing system explicitly.

Digital Earth in support of global change research

The Digital Earth concept as originally proposed by former US Vice president Al Gore is now well established and widely adopted internationally.Similarly,many researchers world-wide are studying the causes,effects and impacts of Global Change.The authors commence by describing a five-step approach to the development of Digital Earth technologies.This is followed by a detailed account of Digital Earth research and developments in China.The authors then present the research results of Global Change studies carried out in China,based on the Digital Earth approach.These research results are based on a classification of global change regions.This covers the following global change situations:Forest and grassland fires in Northern China,temperate region desertification and dust storms,underground coal fires,deforestation and carbon sequestration,protection and utilisation of wetlands,Avian Influenza and the spread of diseases,Tibet Plateau uplift and sub-tropical monsoon climate region,and sea-level rise.The research results show that the environment does not behave in a way easily understood by the traditional disciplinary approach.Although man is clearly a contributing factor to certain Global Change aspects,such as underground coal fires,desertification,land use changes etc.,many of the aspects of Global Change are naturally occurring phenomena which have been changing over centuries,and will continue to do so,no matter what actions we undertake to reverse these processes.Hence,in their conclusions,the authors propose that the communities involved in Digital Earth modelling and in Global Change research co-operate closer to overcome the limitations inherent in the current‘conventional’scientific approach,where scientists have very much stayed within their respective scientific boundaries.Such an integrated approach will enable us to build the next level of scientific infrastructure required to understand and predict naturally occurring environmental changes,as well as that of coupled humanenvironmental systems.