A Trichrome RGB Endoillumination Prototype System: A Novel Application for Chromovitrectomy

2013 ◽  
Vol 230 (s2) ◽  
pp. 73-76
Author(s):  
Sandeep Saxena ◽  
Carsten H. Meyer
Keyword(s):  
Prototype System ◽  
System A

EUHFORIA in the ESA Virtual Space Weather Modelling Centre

2020 ◽  
Author(s):  
Stefaan Poedts
Keyword(s):  
Space Weather ◽  
Radiation Belt ◽  
Flux Rope ◽  
Virtual Space ◽  
Prototype System ◽  
System A ◽  
First Results ◽  
Efficient Integration ◽  
User Friendly ◽  
Further Development

<p>The goal of the ESA project "Virtual Space Weather Modelling Centre - Part 3" (2019-2021) is to further develop the Virtual Space Weather Modelling Centre (VSWMC), building on the Part 2 prototype system and focusing on the interaction with the ESA SSA SWE system. A first, limited version went operational in May 2019 under the H-ESC umbrella on the ESA SSA SWE Portal. The objective and scopes of this new project include: the efficient integration of <strong>new models</strong> and <strong>new model couplings</strong>, including daily automated<strong> end-to-end (Sun to Earth) simulations, </strong>the further development and wider use of the <strong>coupling toolkit</strong>  and <strong>front-end GUI, </strong>making the <strong>operational system more robust and user-friendly.</strong> The VSWMC-Part 3 project started on 1 October 2019.</p><p>EUHFORIA (‘European heliospheric forecasting information asset’) is integrated in the VSWMC and will be upgraded with alternative coronal models (Multi-VP and Wind-Predict) and flux-rope CME models, and new couplings will be made available, e.g. to more advanced magnetospheric models and radiation belt models, geo-effects models, and even SEP models. The first results will be discussed and put into perspective.</p>

CUGrid and VGE Based Air Pollution Dispersion Simulation

2010 ◽  
Vol 143-144 ◽  
pp. 1305-1310
Author(s):  
Bing Li Xu ◽  
Hui Lin ◽  
Wei Ning Cui ◽  
Ya Hu ◽  
Jun Zhu ◽  
...  
Keyword(s):  
Air Pollution ◽  
Information Science ◽  
Computation Time ◽  
Prototype System ◽  
Pollution Dispersion ◽  
System A ◽  
Key Points ◽  
Air Pollution Dispersion ◽  
Geographic Process

Air pollution dispersion is a typical geographic process. A reasonable way to simulate air pollution dispersion is to modeling the dispersion and presents the results in a geographically referenced virtual environment. In this research, we apply the concept of virtual geographic environments (VGE), which is coined in the community of geographic information science, to facilitate air pollution dispersion by integrating MM5 and VGE. Because MM5 is computation intensive, the CUGrid is used in this research to decrease the computation time. Our research focuses on three key points, which are the platform design, MM5 integration and computation on CUGrid, and geographical visualization of air pollution dispersion in VGE. Based on the prototype system, a case of simulating air pollution dispersion in Pearl River Delta is employed to validate and test the rationality of the methodology. As shown in this case study, VGE can provide a good way to visualize air pollution dispersion and the CUGrid can decrease model computation time significantly.

scholarly journals Estimation of Position and Size of a Contaminant in Aluminum Casting Using a Thin-Film Magnetic Sensor

Micromachines ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 127
Author(s):  
Tomoo Nakai
Keyword(s):  
Machine Tools ◽  
Nondestructive Inspection ◽  
Inspection System ◽  
Manufacturing Processes ◽  
Prototype System ◽  
Advanced Manufacturing ◽  
Size Estimation ◽  
Aluminum Casting ◽  
Conductive Material ◽  
System A

Advanced manufacturing processes require an in-line full inspection system. A nondestructive inspection system able to detect a contaminant such as tool chipping was utilized for the purpose of detecting a defective product as well as damaged machine tools used to fabricate the product. In a previous study, a system able to detect magnetic tool steel chipping in conductive material such as aluminum was developed and tested. In this study, a method of position and size estimation for magnetic chipping was investigated and is described. An experimental confirmation of the proposed method was also carried out using an actual prototype system.

A Vibration Monitor System Design for Bridge Model

2013 ◽  
Vol 721 ◽  
pp. 695-698 ◽  
Author(s):  
Hai Feng Lv ◽  
Jun Fan Zhao
Keyword(s):  
Low Cost ◽  
Vibration Signal ◽  
Monitoring Systems ◽  
Prototype System ◽  
Labview Software ◽  
Mems Sensor ◽  
System A ◽  
Bridge Model ◽  
Validation Experiment ◽  
Convective Accelerometer

Structural monitoring systems using MEMS sensor and labview software have the potential to serve as low-cost alternatives to commercially available cable-based monitoring systems. This paper describes a sensing prototype system specifically designed for bridge monitoring applications. To validate the performance of the prototype system, a micro heat convective accelerometer is installed on the model bridge. A labview program is designed for converting, storing and processing the bridge vibration signal which acquired from the data acquire card. Prior to the validation experiment, a calibration test is carried out and the sensitivity is measured to be 650mV/g. The acceleration response of the bridge is recorded by the designed monitoring systems.

A Large-Scale Device Collaboration Resource Selection Method with Multi-QoS Constraint Supported

2010 ◽  
Vol 143-144 ◽  
pp. 894-898
Author(s):  
Xiao Hui Rong ◽  
Pan Deng ◽  
Feng Chen
Keyword(s):  
Resource Selection ◽  
Large Scale ◽  
Rapid Development ◽  
Prototype System ◽  
Model Composite ◽  
Performance Requirements ◽  
System A ◽  
Relation Model ◽  
The Internet Of Things

With the rapid development of the “Internet of Things” and large-scale area management, device collaboration has developed to the stage of large-scale device collaboration. Aiming at the large-scale, dynamics and real-time of the large-scale device collaboration system, in order to ensure the performance of the large-scale device collaboration system, a Quality of Service(QoS) model of large-scale device collaboration is proposed, which contains device QoS model, composite QoS model and QoS relation model. Based on the model, an algorithm of the resource selection in large-scale device collaboration system is presented. Finally, the result of simulation experiments on the large-scale device collaboration prototype system shows that the method can satisfy the performance requirements of the large-scale device collaboration system.

Multidimensional Data Analysis Based on Links

2014 ◽  
pp. 212-281
Author(s):  
Paulo Caetano da Silva
Keyword(s):  
Query Language ◽  
Query Languages ◽  
Multidimensional Data ◽  
Prototype System ◽  
Xml Data ◽  
Xml Documents ◽  
System A ◽  
Analytical Processing ◽  
Analytical System ◽  
The Impact

Analytical processing (OLAP) tools typically only deal with relational data. Hence, the analytical processing systems on XML data do not have all the functionality provided by OLAP tools to traditional data (i.e. relational). In addition, current commercial and academic OLAP tools do not process XML data that contains XLink. Therefore, there is a need to develop a solution for OLAP systems in order to assist in the strategic analysis of the organizational data represented in XML format. Aiming at overcoming this issue, this chapter proposes an analytical system composed by LMDQL (Link-Based Multidimensional Query Language), an analytical query language; XLDM (XLink Data Metamodel), a metamodel given to model cubes of XML documents with XLink and to deal with syntactic, semantic, and structural heterogeneities commonly found in XML documents; and XLPath (XLink Path Language), a navigation language for XML documents connected by XLink. As current W3C query languages for navigating in XML documents do not support XLink, XLPath is discussed in this chapter to provide features for the LMDQL query processing and a prototype system enabling OLAP queries over XML documents linked by XLink and XML schema. This prototype includes a driver, named sql2xquery, which performs the mapping of SQL queries into XQuery in a relational OLAP server. In order to validate the proposed system, a case study and its performance evaluation are presented to analyze the impact of analytical processing over XML/XLink documents.

Design and Evaluation of a Haptic Keypad System for Realistic Touch Interaction

2014 ◽  
Author(s):  
Semin Ryu ◽  
Jeong-Hoi Koo ◽  
Tae-Heon Yang ◽  
Dongbum Pyo ◽  
Ki-Uk Kyung ◽  
...  
Keyword(s):  
Virtual Environment ◽  
Force Feedback ◽  
Haptic Rendering ◽  
Prototype System ◽  
System A ◽  
Mr Fluids ◽  
Touch Interaction ◽  
Communication Module ◽  
Human Operators ◽  
Realistic Force

This paper presents design and testing of a haptic keypad system using an array of haptic actuators. The research goals are to construct a prototype haptic keypad system using haptic actuators and to evaluate the performance of the prototype keypad for haptic rendering. To this end, an MR haptic actuator was designed and fabricated such that it can convey realistic force feedback to users. To demonstrate haptic applications of the MR actuator, a haptic keypad system was constructed, which consists of following components: (1) 3 × 3 array of haptic actuators, (2) 3 × 3 array of force sensing resistors (FSR), (3) a controller including a micro-processor, a current amplifier and a wireless communication module, (4) a graphic display unit with PC. After constructing a prototype keypad system, a haptic rendering technology was employed to interface the hardware keypad system with test software (virtual environment). The prototype system enabled human operators to interact with the target contents in a virtual environment more intuitively. The evaluation results show a feasibility of applications of MR fluids-based haptic actuators in real-world mobile applications.

scholarly journals An Image Quality Comparison Study Between Homemade and Commercial Dental Cone-Beam CT Systems

2021 ◽  
Author(s):  
Trang Thi Ngoc Tran ◽  
David Shih-Chun Jin ◽  
Kun-Long Shih ◽  
Ming-Lun Hsu ◽  
Jyh-Cheng Chen
Keyword(s):  
Image Quality ◽  
Spatial Resolution ◽  
Image Distortion ◽  
Cone Beam ◽  
Prototype System ◽  
Micro Ct ◽  
Mineral Density ◽  
Image Intensity ◽  
System A ◽  
Noise Ratio

Abstract Purpose Cone-beam computed tomography (CBCT) has been widely applied in dental and maxillofacial imaging. Several dental CBCT systems have been recently developed in order to improve the performance. This study aimed to evaluate the image quality of our prototype (YMU-DENT-P001) and compare with a commercial POYE Expert 3DS dental CBCT system (system A). Methods The Micro-CT Contrast Scale, Micro-CT Water and Micro-CT HA phantoms were used to evaluate the two CBCT systems in terms of contrast-to-noise ratio (CNR), signal-to-noise ratio (SNR), uniformity (U), distortion, and linearity in the relationship between image intensity and calcium hydroxyapatite concentration. We also fabricated a proprietary thin-wire phantom to evaluate full width at half maximum (FWHM) spatial resolution. Both CBCT systems used the same exposure protocol, and data analysis was performed in accordance with ISO standards using a proprietary image analysis platform. Results The SNR of our prototype system was nearly five times higher than that of system A (prototype: 159.85 ± 3.88; A: 35.42 ± 0.61; p < 0.05) and the CNR was three times higher (prototype: 329.39 ± 5.55; A: 100.29 ± 2.31; p < 0.05). The spatial resolution of the prototype (0.2446 mm) greatly exceeded that of system A (0.5179 mm) and image distortion was lower (prototype: 0.03 mm; system A: 0.285 mm). Little difference was observed between the two systems in terms of the linear relationship between bone mineral density (BMD) and image intensity. Conclusions Within the scope of this study, our prototype YMU-DENT-P001 outperformed system A in terms of spatial resolution, SNR, CNR, and image distortion.

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