scholarly journals Addition of Illuminator Fiber Optic to Produce 3 Dimension Effects in Micrographic Observation Using Upright Microscope

2020 ◽  
Vol 3 ◽  
pp. 493-496
Author(s):  
Sutriyono ◽  
Widodo ◽  
Retno Suryandari
Keyword(s):  
Optical Fiber ◽  
Experimental Method ◽  
Daphnia Magna ◽  
High Intensity ◽  
Fiber Optic ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Three Dimensional Objects ◽  
Stereo Microscope ◽  
Total Magnification

Microscope is one of the tools used in practicums with high intensity. The use of a microscope adjusts to the object to be observed in order to obtain optimal micrographic results. Stereo microscopes are used to observe three-dimensional objects. Upright microscopes are used to observe two-dimensional objects. This study aims to combine the two advantages of stereo microscopy that can produce three-dimensional micrography with the advantages of an upright microscope that has a high total magnification. The method used in this study is an experimental method by adding an optical fiber illuminator in the use of an upright microscope and then applying it in various observations. The conclusion of this research is the addition of an optical fiber illuminator in observations using an upright microscope can replace the function of a stereo microscope; can produce three-dimensional effects and increase magnification in Daphnia magna micrographic observations.

scholarly journals Tokens, Writing and (Ac)counting: A Conversation with Denise Schmandt-Besserat and Bill Maurer

2017 ◽  
Vol 5 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Denise Wilding ◽  
Clare Rowan ◽  
Bill Maurer ◽  
Denise Schmandt-Besserat ◽  
Denise Wilding ◽  
...  
Keyword(s):  
20Th Century ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Three Dimensional Objects ◽  
American Scientist

In her foundational study of Neolithic clay tokens, the renowned archaeologist Denise Schmandt-Besserat identified that different token shapes represented different goods and were used in accounting and distribution. When these tokens came to be stored in sealed clay envelopes (likely representing a debt), each token was impressed on the outside of the envelope before being placed inside (thus allowing people to see quickly what was within). Three-dimensional objects were thus reduced to two-dimensional representations, the first form of writing (and contributing to cuneiform script). These clay envelopes in turn developed into pictographic tablets; here each token did not have to be impressed into the clay in a 'one, one, one' system, but instead quantity was indicated by a numerical symbol - abstract number was born. Much of Schmandt-Besserat’s work can be found online at https://sites.utexas.edu/dsb/. Her book ‘How Writing Came About’ was listed by American Scientist magazine as one of the 100 books that shaped science in the 20th century, and she remains an active expert on all things ‘token’.

scholarly journals A system for generating virtual seeds

1998 ◽  
Vol 55 (spe) ◽  
pp. 39-45 ◽  
Author(s):  
Y. Sako ◽  
K. Fujimura ◽  
M.B. McDonald ◽  
D. James
Keyword(s):  
Three Dimensional ◽  
Promising Method ◽  
Two Dimensional ◽  
Dimensional Representation ◽  
Accurate Identification ◽  
Computer Screen ◽  
Three Dimensional Objects ◽  
Three Dimensional Representation ◽  
Quicktime Vr

Seed analysts need to identify seeds, and seed catalogs are used as a reference to accomplish this task. Conventional seed catalogs supply two-dimensional photographs and hand-drawn diagrams. In this study, a new, three-dimensional representation of seeds is developed to supplement these traditional photographs and drawings. QuickTime VR is a promising method for viewing three-dimensional objects on a computer screen. It permits manipulation of an object by rotating and viewing it from any pre-specified angle at an interactive speed, allowing the viewer the sense of examining a hand-held object. In this study, QuickTime VR object movies of seeds were created as interactive "movies" of seeds that can be rotated and scaled to give the viewer the sensation of examining actual seeds. This approach allows the examination of virtual seeds from any angle, permitting more accurate identification of seeds by seed analysts.

Mental rotation of representations of two-dimensional and three-dimensional objects.

1985 ◽  
Vol 39 (1) ◽  
pp. 100-129 ◽  
Author(s):  
Pierre Jolicœur ◽  
Sonya Regehr ◽  
Lyndon B. J. P. Smith ◽  
Garth N. Smith
Keyword(s):  
Mental Rotation ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Three Dimensional Objects

scholarly journals Modeling in AUTOCAD for bachelors

2021 ◽  
pp. 25-28
Author(s):  
Л.В. Карпюк ◽  
Н.О. Давіденко
Keyword(s):  
3D Model ◽  
Three Dimensional ◽  
Model Space ◽  
Educational Process ◽  
Point Of View ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Three Dimensional Objects ◽  
Graphic Editor

The article discusses the methods of using the AutoCad graphic editor for creating three-dimensional objects. The possibilities of three-dimensional modeling in the AutoCad graphic editor for optimizing the educational process of bachelors of technical specialties are also considered. The article analyzes the best ways to create mechanical engineering drawings.The most developed software tool for the production of design documentation is AutoCAD - a universal graphic design system. Creating models of any complexity in space by using this graphic editor, the user will be able to see their relative position, estimate the distance between them. The model can be freely moved in space, viewing many options. The ability to control the point of view allows to conveniently select the view of the 3D model that is being developed. Zooming, panning in real time with the ability to freely rotate the camera around the model provide the ability to quickly view objects from any point of view. The article provides examples of choosing the most optimal option for creating a three-dimensional model. The traditional way to create a 3D model drawing is to make 2D views of the model. When creating a flat drawing, there is a possibility of error when making projections, since they are created independently from each other and consist of several images. It is rather difficult to represent an object in space from a flat drawing. At present, modern software graphic editors are aimed at creating three-dimensional models that allow to create realistic models and, on their basis, get two-dimensional projections. Graphic editor AutoCad allows to create three-dimensional objects based on standard commands, in the form of a cylinder, cone, box, torus, etc., when editing which you can get the desired shapes. After creating a three-dimensional model, the user can get its two-dimensional projections not only on the main planes, but also on any plane at will. The 3D modeling method allows you to create a complex drawing with any number of images based on a 3D model. There are ways to create 2D plane drawings from a 3D model and the ability to edit ready-made designs that can be inserted from model space into paper space. Editing takes place by changing the parameters of a 3D object in model space, and these changes are automatically reflected in paper space. This method allows us to use the tools to quickly create a system of 3-4 linked views for a 3D AutoCad model.

Visual and Haptic Dimensional Preference for Planometric Stimuli

1973 ◽  
Vol 36 (2) ◽  
pp. 383-390 ◽  
Author(s):  
Alexander W. Siegel ◽  
John C. Barber
Keyword(s):  
Three Dimensional ◽  
First Grade ◽  
Two Dimensional ◽  
Visual Form ◽  
Dimensional Preference ◽  
Three Dimensional Objects ◽  
Grade Levels

108 children, 36 from each of the grade levels preschool, kindergarten, and first grade, were given tests of dimensional preference in both the visual and haptic modalities. Visual dimensions were form and color; haptic dimensions were form and texture. Previous research done with stereometric stimuli (three-dimensional objects) had indicated that the shift to form-dominance occurred at about the same time (5½ yr.) in both modalities. Stimuli in the present study were planometric (two-dimensional) rather than stereometric. In line with the predictions, visual form-dominance appeared earlier (4½ yr.) and the shift to haptic form-dominance occurred later (6½ yr.).

Ideas

1981 ◽  
Vol 28 (8) ◽  
pp. 27-32
Author(s):  
M. Bernadine Tabler ◽  
Marilyn Hall Jacobson
Keyword(s):  
Three Dimensional ◽  
Two Dimensional ◽  
Mathematical Learning ◽  
Geometric Shapes ◽  
Three Dimensional Objects ◽  
Total Environment

The IDEAS this month focuses on finding two-dimensional geometric shapes in designs and three-dimensional objects. The ability to isolate some elements from the total environment is an essential process for every phase of mathematical learning. These activities also encourage looking for geometric shapes in everyday surroundings.

Expanding benzene to giant graphenes: towards molecular devices

2007 ◽  
Vol 365 (1855) ◽  
pp. 1453-1472 ◽  
Author(s):  
Sibylle Müller ◽  
Klaus Müllen
Keyword(s):  
Electronic Properties ◽  
Electronic Devices ◽  
Three Dimensional ◽  
Molecular Devices ◽  
Two Dimensional ◽  
Conjugated Materials ◽  
Three Dimensional Objects

Phenylene-based conjugated materials provide versatile platforms for the development of molecular devices. Architectures of one- and two-dimensional polyphenylenes, which self-assemble into three-dimensional objects with advantageous electronic properties, have been investigated. Systematic relations between the size, substitution and shape with function were found, which enabled the further optimization of the materials. Hand in hand with the development of suitable methods for visualization and processing, promising results were obtained for performance of nanoscale electronic devices.

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