scholarly journals Multimedia Teaching Platform for Urban Planning Utilizing 3D Technology

2018 ◽  
Vol 13 (04) ◽  
pp. 187 ◽  
Author(s):  
Xuhui Wang ◽  
Quan Zhang ◽  
Yanyi Chen ◽  
Shihao Liang
Keyword(s):  
High Speed ◽  
Three Dimensional ◽  
Practical Significance ◽  
Master Plan ◽  
3D Technology ◽  
Technology Application ◽  
Teaching Platform ◽  
Multimedia Teaching ◽  
Effect Difference ◽  
Urban Rural

In recent years, 3D technology based on computer and internet has achieved high-speed development. People have realized direct and stereo observation of realistic world. Three-dimensional and visualized characteristics of the technology fit well with the teaching objective of college architecture specialized courses. Thus, 3D model has profound practical significance for its application in urban green space system and urban rural overall planning. With “urban-rural master plan” as experimental course, through design of “urban-rural master plan” multimedia teaching platform based on 3D technology and practice of the teaching platform in course teaching, this article has applied control experiment method and statistical method to make comparative analysis on the teaching effect difference of multimedia teaching platform based on 3D technology application in “urban-rural master plan” as experimental course so as to provide theoretical and data support for 3D technology application in “urban-rural master plan” and other college architecture major courses.

scholarly journals Erdvės užkariavimas: 3D technologijos taikymo galimybės ir problemos Lietuvos archeologijoje

2012 ◽  
Vol 13 ◽  
pp. 7-29 ◽  
Author(s):  
Albinas Kuncevičius ◽  
Rimvydas Laužikas ◽  
Ramūnas Šmigelskas ◽  
Renaldas Augustinavičius
Keyword(s):  
World View ◽  
Three Dimensional ◽  
Scientific Research ◽  
3D Scanning ◽  
Research Data ◽  
3D Technology ◽  
Technology Application ◽  
Laser Technologies ◽  
Scientific Project ◽  
Practical Model

Tikslus vizualus trimačio pasaulio fiksavimas mokslo tyrimams visuomet buvo iššūkis. Plėtojantis skaitmeninėms ir lazerinėms technologijoms, atsirado naujų trimačių tikrovės modelių kūrimo priemonių. Šio straipsnio objektas yra trimatės technologijos (3D) taikymas Lietuvos archeologijoje. Straipsnio tikslas – išanalizuoti trimatės technologijos sampratą, taikomąsias galimybes bei problemas informacijos gyvavimo ciklo požiūriu ir pateikti praktinį šios technologijos taikymo pavyzdį Lietuvoje, moksliniame projekte „Lietuvos valstybės ištakos Dubingių mikroregiono tyrimų duomenimis“. Taikomojoje straipsnio dalyje pristatomas 3D nuskaitymo taikymas Jutonių (Dubingių) pilkapyje (Švenčionių r. sav.) 2011 metais....SPACE CONQUEST: POTENTIALITY AND PROBLEMS OF THE 3D TECHNOLOGY APPLICATION IN ARCHAEOLOGY OF LITHUANIAAlbinas Kuncevičius, Rimvydas Laužikas, Ramūnas Šmigelskas, Renaldas AugustinavičiusSummaryIt has always been a challenge to “lock” the three-dimensional world view in scientific research. The development of the digital and laser technologies allowed establishing new modes of reality restoration. The object of this article is the application of the three-dimensional technologies (3D) in the archaeology of Lithuania. The aim of the article is to develop the concept of the three-dimensional technology and to introduce the practical model of its application in Lithuanian scientific project under the title The origins of Lithuanian state based on the research data in Dubingiai micro-region. In the practical part of the article the 3D scanning applied in Jutoniai (Dubingiai) barrow in 2011 will be presented....

scholarly journals Damage and failure evaluation of diamond wire for multi-wire sawing of hard stone blocks through modelling and numerical simulation

2021 ◽  
Vol 349 ◽  
pp. 04001
Author(s):  
Daniel Gomes ◽  
Andreia Araujo ◽  
Rui Marques ◽  
José Patricio ◽  
Vítor Lopez ◽  
...  
Keyword(s):  
Numerical Model ◽  
High Speed ◽  
Steel Wire ◽  
Three Dimensional ◽  
Wire Rope ◽  
Practical Significance ◽  
Special Focus ◽  
Diamond Wire ◽  
Damage And Failure ◽  
Ornamental Stones

Diamond wires are high-speed, efficient and cost-effective stone cutting tools used both in quarries, to obtain large stone blocks, and in block-processing plants, to shape ornamental stones. Diamond wires are generally composed by a wire rope with evenly spaced diamond beads fixed by a polymer or rubber coating. A numerical model of the diamond wire was developed in Abaqus™ software aiming to study the damage and failure of the steel wire during the cutting process. The model is intended to support the development of this component with enhanced durability and damage resistance. Previously in this work, a detailed three-dimensional (3D) and numerical model of a 7x7 wire rope was created, followed by experimental validation. The diamond wire model was then based on the wire rope model, with the addition of the polymer coating and the diamond beads. The developed diamond wire model presents an error smaller than 6% relative to the experimental tensile test, corresponding to a valid representation of the component. This model has practical significance for the mechanical evaluation of the diamond wire, supporting further developments, with special focus on its design and manufacturing, to achieve longer service life.

scholarly journals Development of WebGL-based Virtual Teaching Platform for Mold Design

2018 ◽  
Vol 13 (06) ◽  
pp. 16
Author(s):  
Yongjiang Zhang
Keyword(s):  
Cognitive Theory ◽  
Three Dimensional ◽  
Multimedia Technology ◽  
Virtual Technology ◽  
Teaching Platform ◽  
The Past ◽  
Multimedia Teaching ◽  
Teaching Curriculum ◽  
Virtual Teaching ◽  
Further Development

As an outcome of the further development of modern simulation technology, virtual technology has been widely used under the support of computer technology and multimedia technology and provides more interactivity and perceptibility. However, in the past, the design of virtual teaching system was mainly based on theoretical analysis, resulting in low practicability. The appearance of WebGL standard simplifies the procedure of developing web-specific rendering plug-ins, contributing to more seamless 3D scenes and models. This study constructed the theory from several aspects including multimedia teaching effect under cognitive theory, WebGL architecture, design of virtual teaching curriculum based on WebGL, and built a WebGL-based virtual teaching platform for mole design through designing the overall framework and constructing the three-dimensional teaching environment. Practice has proved that the platform makes it convenient for users to create teaching scenarios and engage in interactions, and strengthens students’ understanding of theoretical knowledge and skill practice.

High-speed brightfield 3-D imaging and 3-D image analysis of thick and overlapped cell clusters in cytological preparations

1994 ◽  
Vol 52 ◽  
pp. 218-219
Author(s):  
Robert W. Mackin
Keyword(s):  
Image Analysis ◽  
High Speed ◽  
Three Dimensional ◽  
Image Data ◽  
Ccd Camera ◽  
Objective Lens ◽  
Array Processor ◽  
Vaginal Smears ◽  
Low Contrast ◽  
Computer Controlled

This paper presents two advances towards the automated three-dimensional (3-D) analysis of thick and heavily-overlapped regions in cytological preparations such as cervical/vaginal smears. First, a high speed 3-D brightfield microscope has been developed, allowing the acquisition of image data at speeds approaching 30 optical slices per second. Second, algorithms have been developed to detect and segment nuclei in spite of the extremely high image variability and low contrast typical of such regions. The analysis of such regions is inherently a 3-D problem that cannot be solved reliably with conventional 2-D imaging and image analysis methods.High-Speed 3-D imaging of the specimen is accomplished by moving the specimen axially relative to the objective lens of a standard microscope (Zeiss) at a speed of 30 steps per second, where the stepsize is adjustable from 0.2 - 5μm. The specimen is mounted on a computer-controlled, piezoelectric microstage (Burleigh PZS-100, 68/μm displacement). At each step, an optical slice is acquired using a CCD camera (SONY XC-11/71 IP, Dalsa CA-D1-0256, and CA-D2-0512 have been used) connected to a 4-node array processor system based on the Intel i860 chip.

Effects of Three-Dimensional Pressure Gradients on High-Speed Turbulent Boundary Layers

2021 ◽  
Author(s):  
Scott J. Peltier ◽  
Brian E. Rice ◽  
Ethan Johnson ◽  
Venkateswaran Narayanaswamy ◽  
Marvin E. Sellers
Keyword(s):  
Boundary Layers ◽  
High Speed ◽  
Three Dimensional ◽  
Turbulent Boundary Layers ◽  
Pressure Gradients

Three-Dimensional Imaging through Shock-Waves at Ultra-High Speed.

2018 ◽  
Author(s):  
Yi Chen Mazumdar ◽  
Michael E. Smyser ◽  
Jeffery Dean Heyborne ◽  
Daniel Robert Guildenbecher
Keyword(s):  
Shock Waves ◽  
High Speed ◽  
Three Dimensional ◽  
Three Dimensional Imaging ◽  
Ultra High Speed

scholarly journals High-speed volumetric two-photon fluorescence imaging of neurovascular dynamics

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jiang Lan Fan ◽  
Jose A. Rivera ◽  
Wei Sun ◽  
John Peterson ◽  
Henry Haeberle ◽  
...  
Keyword(s):  
Blood Flow ◽  
High Speed ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Laser Scanning Microscopy ◽  
Fluorescence Signal ◽  
Imaging Method ◽  
Spatiotemporal Resolution ◽  
Two Photon

AbstractUnderstanding the structure and function of vasculature in the brain requires us to monitor distributed hemodynamics at high spatial and temporal resolution in three-dimensional (3D) volumes in vivo. Currently, a volumetric vasculature imaging method with sub-capillary spatial resolution and blood flow-resolving speed is lacking. Here, using two-photon laser scanning microscopy (TPLSM) with an axially extended Bessel focus, we capture volumetric hemodynamics in the awake mouse brain at a spatiotemporal resolution sufficient for measuring capillary size and blood flow. With Bessel TPLSM, the fluorescence signal of a vessel becomes proportional to its size, which enables convenient intensity-based analysis of vessel dilation and constriction dynamics in large volumes. We observe entrainment of vasodilation and vasoconstriction with pupil diameter and measure 3D blood flow at 99 volumes/second. Demonstrating high-throughput monitoring of hemodynamics in the awake brain, we expect Bessel TPLSM to make broad impacts on neurovasculature research.

Clinical Utility of an Exoskeleton Robot Using 3-Dimensional Scanner Modeling in Burn Patient: A Case Report

2021 ◽  
Author(s):  
So Young Joo ◽  
Seung Yeol Lee ◽  
Yoon Soo Cho ◽  
Sangho Yi ◽  
Cheong Hoon Seo
Keyword(s):  
Burn Injury ◽  
Hand Function ◽  
Three Dimensional ◽  
The Body ◽  
3D Technology ◽  
Early Management ◽  
3 Dimensional ◽  
Exoskeleton Robot ◽  
Physical Abilities ◽  
Upper Limb Dysfunction

Abstract Hands are the part of the body that are most commonly involved in burns, and the main complications are finger joint contractures and nerve injuries. Hypertrophic scarring cannot be avoided despite early management of acute hand burn injuries, and some patients may need application of an exoskeleton robot to restore hand function. To do this, it is essential to individualize the customization of the robot for each patient. Three-dimensional (3D) technology, which is widely used in the field of implants, anatomical models, and tissue fabrication, makes this goal achievable. Therefore, this report is a study on the usefulness of an exoskeleton robot using 3D technology for patients who lost bilateral hand function due to burn injury. Our subject was a 45-year-old man with upper limb dysfunction of 560 days after a flame and chemical burn injury, with resultant impairment of manual physical abilities. After wearing an exoskeleton robot made using 3D printing technology, he could handle objects effectively and satisfactorily. This innovative approach provided considerable advantages in terms of customization of size and reduction in manufacturing time and costs, thereby showing great potential for use in patients with hand dysfunction after burn injury.

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