Lightweight Capacitance-based Block System for 3D Space Interaction

INDUSTRIAL BASED CURRICULUM IMPLEMETATION AT SMK MITRA INDUSTRI MM2100 CIKARANG-BEKASIThis study aims to obtain a fact-based picture in the form of data and information regarding the implementation of an industry-based curriculum at SMK Mitra Industri MM2100. This study uses a qualitative method, which is to make a complex and comprehensive picture with detailed descriptions from the eyes of the informants to produce a comprehensive exposure based on clear and real findings, events, processes and results related to the implementation of an industry-based curriculum. Data obtained through interviews, field observations and documentation studies. Based on data analysis, the following results are obtained: 1). The curriculum development model used at SMK Mitra Industri MM2100, is a model of curriculum development that is problem-centered by integrating several disciplines to form a concept of attitudes, skills and knowledge in accordance with the demands and needs of the industry which are oriented to the vision, mission and goals of the school. 2). The learning process at SMK Mitra Industri MM2100 uses a block system, which is designed to be oriented towards the merging of instruction and construction, so that the learning process approach refers to the dual base program to fully and fully cultivate industrial work patterns. 3). Challenges and obstacles in the implementation of industrial-based curriculum in SMK Mitra Industri MM2100 in the form of not wanting to change the principles of school/mental blockage, focusing on knowledge, school target is focus on graduation of students, not on the distribution of work at industries and bad networking with industry which can be overcome through socialization to all elements of the school and stakeholders involved.

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VISUAL REPRESENTATION OF GEOGRAPHIC OBJECTS IN 3D SPACE AT LEVELS OF DIFFERENT DETAILS

FAIR - NGHIÊN CỨU CƠ BẢN VÀ ỨNG DỤNG CÔNG NGHỆ THÔNG TIN - 2017 ◽

10.15625/vap.2017.000115 ◽

2017 ◽

Author(s):

Pham Van Dang ◽

Tran Vinh Phuoc ◽

Huynh Ngo Phuoc Tuyen

Keyword(s):

Visual Representation ◽

3D Space

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A Study of Clustering for the Enhancement of Image Resolution in Dynamic Photon Emission

ISTFA 2019: Conference Proceedings from the 45th International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa2019p0068 ◽

2019 ◽

Author(s):

S. Chef ◽

C. T. Chua ◽

C. L. Gan

Keyword(s):

Signal To Noise Ratio ◽

Photon Emission ◽

Optical Signal ◽

Image Resolution ◽

Time Dimension ◽

Processing Scheme ◽

3D Space ◽

Initial Acquisition ◽

Resolution Limits ◽

Emission Microscopy

Abstract Limited spatial resolution and low signal to noise ratio are some of the main challenges in optical signal observation, especially for photon emission microscopy. As dynamic emission signals are generated in a 3D space, the use of the time dimension in addition to space enables a better localization of switching events. It can actually be used to infer information with a precision above the resolution limits of the acquired signals. Taking advantage of this property, we report on a post-acquisition processing scheme to generate emission images with a better image resolution than the initial acquisition.

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Comparative evaluation of WIMP and immersive natural finger interaction: a user study on CAD assembly modeling

Virtual Reality ◽

10.1007/s10055-021-00543-0 ◽

2021 ◽

Author(s):

Marius Fechter ◽

Benjamin Schleich ◽

Sandro Wartzack

Keyword(s):

User Interfaces ◽

User Study ◽

Spatial Location ◽

Ease Of Use ◽

Natural Interaction ◽

Assembly Modeling ◽

3D Space ◽

Computer Mouse ◽

Study Results ◽

Assembly Procedure

AbstractVirtual and augmented reality allows the utilization of natural user interfaces, such as realistic finger interaction, even for purposes that were previously dominated by the WIMP paradigm. This new form of interaction is particularly suitable for applications involving manipulation tasks in 3D space, such as CAD assembly modeling. The objective of this paper is to evaluate the suitability of natural interaction for CAD assembly modeling in virtual reality. An advantage of the natural interaction compared to the conventional operation by computer mouse would indicate development potential for user interfaces of current CAD applications. Our approach bases on two main elements. Firstly, a novel natural user interface for realistic finger interaction enables the user to interact with virtual objects similar to physical ones. Secondly, an algorithm automatically detects constraints between CAD components based solely on their geometry and spatial location. In order to prove the usability of the natural CAD assembly modeling approach in comparison with the assembly procedure in current WIMP operated CAD software, we present a comparative user study. Results show that the VR method including natural finger interaction significantly outperforms the desktop-based CAD application in terms of efficiency and ease of use.

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Design, Fabrication, and Testing of a Novel 3D 3-Fingered Electrothermal Microgripper with Multiple Degrees of Freedom

Micromachines ◽

10.3390/mi12040444 ◽

2021 ◽

Vol 12 (4) ◽

pp. 444

Author(s):

Guoning Si ◽

Liangying Sun ◽

Zhuo Zhang ◽

Xuping Zhang

Keyword(s):

Degrees Of Freedom ◽

Dynamic Properties ◽

Three Dimensional ◽

Polyimide Film ◽

Zebrafish Embryos ◽

Multiple Degrees Of Freedom ◽

Electrothermal Actuator ◽

3D Space ◽

Pick And Place

This paper presents the design, fabrication, and testing of a novel three-dimensional (3D) three-fingered electrothermal microgripper with multiple degrees of freedom (multi DOFs). Each finger of the microgripper is composed of a V-shaped electrothermal actuator providing one DOF, and a 3D U-shaped electrothermal actuator offering two DOFs in the plane perpendicular to the movement of the V-shaped actuator. As a result, each finger possesses 3D mobilities with three DOFs. Each beam of the actuators is heated externally with the polyimide film. The durability of the polyimide film is tested under different voltages. The static and dynamic properties of the finger are also tested. Experiments show that not only can the microgripper pick and place microobjects, such as micro balls and even highly deformable zebrafish embryos, but can also rotate them in 3D space.

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Enhanced Computational Intelligence Algorithm for Coverage Optimization of 6G Non-Terrestrial Networks in 3D Space

IEEE Access ◽

10.1109/access.2021.3078585 ◽

2021 ◽

Vol 9 ◽

pp. 70419-70429

Author(s):

Mohamed Abdel-Basset ◽

Laila Abdel-Fatah ◽

Khalid A. Eldrandaly ◽

Nabil M. Abdel-Aziz

Keyword(s):

Computational Intelligence ◽

Coverage Optimization ◽

3D Space ◽

Intelligence Algorithm ◽

Terrestrial Networks

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Active Components from Cassia abbreviata Prevent HIV-1 Entry by Distinct Mechanisms of Action

International Journal of Molecular Sciences ◽

10.3390/ijms22095052 ◽

2021 ◽

Vol 22 (9) ◽

pp. 5052

Author(s):

Yue Zheng ◽

Xian-Wen Yang ◽

Dominique Schols ◽

Mattia Mori ◽

Bruno Botta ◽

...

Keyword(s):

Crude Extract ◽

Female Genital Tract ◽

Binding Activity ◽

Sub Saharan Africa ◽

Active Components ◽

Chemical Structures ◽

3D Space ◽

In Silico Study ◽

Sub Saharan ◽

Hiv 1

Cassia abbreviata is widely used in Sub-Saharan Africa for treating many diseases, including HIV-1 infection. We have recently described the chemical structures of 28 compounds isolated from an alcoholic crude extract of barks and roots ofC. abbreviata, and showed that six bioactive compounds inhibit HIV-1 infection. In the present study, we demonstrate that the six compounds block HIV-1 entry into cells: oleanolic acid, palmitic acid, taxifolin, piceatannol, guibourtinidol-(4α®8)-epiafzelechin, and a novel compound named as cassiabrevone. We report, for the first time, that guibourtinidol-(4α®8)-epiafzelechin and cassiabrevone inhibit HIV-1 entry (IC50 of 42.47 µM and 30.96 µM, respectively), as well as that piceatannol interacts with cellular membranes. Piceatannol inhibits HIV-1 infection in a dual-chamber assay mimicking the female genital tract, as well as HSV infection, emphasizing its potential as a microbicide. Structure-activity relationships (SAR) showed that pharmacophoric groups of piceatannol are strictly required to inhibit HIV-1 entry. By a ligand-based in silico study, we speculated that piceatannol and norartocarpetin may have a very similar mechanism of action and efficacy because of the highly comparable pharmacophoric and 3D space, while guibourtinidol-(4α®8)-epiafzelechin and cassiabrevone may display a different mechanism. We finally show that cassiabrevone plays a major role of the crude extract of CA by blocking the binding activity of HIV-1 gp120 and CD4.

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