Current trends and research opportunities in hybrid additive manufacturing

2021 ◽  
Author(s):  
Ugur M. Dilberoglu ◽  
Bahar Gharehpapagh ◽  
Ulas Yaman ◽  
Melik Dolen
Keyword(s):  
Additive Manufacturing ◽  
Research Opportunities ◽  
Current Trends

Reconfigurable molds and a fabrication-aware design tool for manufacturing concrete grid structures

2021 ◽  
pp. 147807712110300
Author(s):  
Ali Baghi ◽  
Saleh Kalantari ◽  
Aryan Baghi
Keyword(s):  
Additive Manufacturing ◽  
Casting Machine ◽  
Design Tool ◽  
Digital Design ◽  
Architectural Geometry ◽  
Current Trends ◽  
Design And Manufacturing ◽  
Concrete Joints ◽  
Concrete Casting ◽  
Concrete Elements

The design and manufacturing of concrete elements need to be reconsidered in light of current trends in architectural geometry. Today, there is a movement toward greater customization and adaptability of concrete elements using “reconfigurable formworks” and “additive manufacturing.” Our study approached the issue of fabricating non-standardized concrete elements from the perspective of a “reconfigurable fabrication platform.” Specifically, we developed a method of fabricating geometrically diverse concrete joints by combining flexible pressure-enduring tubes with a rigid mechanism, resulting in an adaptive concrete-casting machine. This platform, which we named “Flexi-node,” can be used in conjunction with a relevant fabrication-aware digital design tool. Users can computationally design and fabricate a great variety of concrete joints using just one mold, with a minimum of material waste and with no distortion from hydrostatic pressure as would typically occur in a fully flexible formwork.

Unmanned Aerial Systems Platform Research Prognosis

2012 ◽  
Vol 225 ◽  
pp. 555-560
Author(s):  
Javaan Chahl
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Systems Engineering ◽  
The State ◽  
Unmanned Aerial Systems ◽  
Research Opportunities ◽  
Engineering Approach ◽  
Current Trends ◽  
Research Investment ◽  
Aerial Vehicle ◽  
Aerial Systems

Much of aerospace academia is anticipating a boom in Unmanned Aerial Vehicle (UAV) funding and research opportunities. The expectation is built on the premise that UAVs will revolutionize aerospace, which is likely based on current trends. There is also an anticipation of an increasing number of new platforms and research investment, which is likely but must be analyzed carefully to determine where the opportunities might lie. This paper draws on the state of industry and a systems engineering approach. We explore what aspects of UAVs really are the results of aerospace science advances and what aspects will be rather more mundane works of engineering.

Concluding remarks on the Handbook of the Archaeology of Roman Germany

2019 ◽  
pp. 600-608
Author(s):  
Thomas Fischer
Keyword(s):  
Comparative Studies ◽  
Scholarly Research ◽  
Research Opportunities ◽  
Current Trends ◽  
Imperial Period ◽  
Western Germany ◽  
Roman Germany

This chapter summarizes the contributions to this handbook. It notes the limitations a book conceived from a perspective on Roman Germany that emphasizes unilaterally the provinces of Germania Inferior and Germania Superior as well as Germania Magna. However, it acknowledges that the handbook has successfully dealt with current trends in German scholarly research on these areas in a comprehensive way, especially for northern and western Germany. It further suggests that this German scholarship has attracted much less attention in Britain in recent years. Were the reciprocal interest in new results obtained in the respective provinces in Britain and Germany to increase, then comparative studies on all aspects of life in the imperial period of the British and Germanic provinces would once again offer great research opportunities.

Dimensional Accuracy in PolyJet Printing: A Literature Review

2019 ◽  
Author(s):  
Ketan Thakare ◽  
Xingjian Wei ◽  
Zhijian Pei
Keyword(s):  
Additive Manufacturing ◽  
Layer Thickness ◽  
Surface Finish ◽  
Dimensional Accuracy ◽  
High Dimensional ◽  
Control Variables ◽  
Current Trends ◽  
Manufacturing Methods ◽  
Polyjet Printing ◽  
Part Orientation

Abstract PolyJet printing process is one of the additive manufacturing methods to print parts with high dimensional accuracy. To date, dimensional accuracies of such process have been investigated by a number of studies. This review will summarize those studies, and identify current trends. With respect to methods of measurements used in the reported studies, it is noted that no special preference is given to use of any method. In addition, the effects of four control variables of PolyJet process: part orientation, layer thickness, surface finish type and materials, on dimensional accuracy are noted based on the results of reported studies. There is consistency in results in studies considering control variables of layer thickness, surface finish type and materials. However, the results are inconsistent in studies considering part orientation.

scholarly journals Current Trends in Metallic Orthopedic Biomaterials: From Additive Manufacturing to Bio-Functionalization, Infection Prevention, and Beyond

2018 ◽  
Vol 19 (9) ◽  
pp. 2684 ◽  
Author(s):  
Amir Zadpoor
Keyword(s):  
Additive Manufacturing ◽  
Medical Devices ◽  
Biomedical Engineering ◽  
Infection Prevention ◽  
The Other ◽  
Prevention Strategies ◽  
Special Issue ◽  
Metallic Biomaterials ◽  
Current Trends ◽  
Recent Developments

There has been a growing interest in metallic biomaterials during the last five years, as recent developments in additive manufacturing (=3D printing), surface bio-functionalization techniques, infection prevention strategies, biodegradable metallic biomaterials, and composite biomaterials have provided many possibilities to develop biomaterials and medical devices with unprecedented combinations of favorable properties and advanced functionalities. Moreover, development of biomaterials is no longer separated from the other branches of biomedical engineering, particularly tissue biomechanics, musculoskeletal dynamics, and image processing aspects of skeletal radiology. In this editorial, I will discuss all the above-mentioned topics, as they constitute some of the most important trends of research on metallic biomaterials. This editorial will, therefore, serve as a foreword to the papers appearing in a special issue covering the current trends in metallic biomaterials.

scholarly journals Current research opportunities of image processing and computer vision

2019 ◽  
Vol 20 (4) ◽  
Author(s):  
Abhishek Gupta
Keyword(s):  
Image Processing ◽  
Computer Vision ◽  
Literature Survey ◽  
Electromagnetic Spectrum ◽  
Research Needs ◽  
Research Opportunities ◽  
Current Trends ◽  
Challenges And Opportunities ◽  
Computer Vision Applications ◽  
Research Students

Image processing and computer vision is an important and essential area in today’s scenario. Several problems can be solved through computer vision techniques. There are a large number of challenges and opportunities which require skills in the field of computer vision to address them. Computer vision applications cover each band of the electromagnetic spectrum and there are numerous applications in every band. This article is targeted to the research students, scholars and researchers who are interested to solve the problems in the field of image processing and computer vision. It addresses the opportunities and current trends of computer vision applications in all emerging domains. The research needs are identified through available literature survey and classified in the corresponding domains. The possible exemplary images are collected from the different repositories available for research and shown in this paper. The opportunities mentioned in this paper are explained through the images so that a naive researcher can understand it well before proceeding to solve the corresponding problems. The databases mentioned in this article could be useful for researchers who are interested in further solving the problem. The motivation of the article is to expose the current opportunities in the field of image processing and computer vision along with corresponding repositories. Interested researchers who are working in the field can choose a problem through this article and can get the experimental images through the cited references for working further. 

scholarly journals FPGA-Based Architectures for Acoustic Beamforming with Microphone Arrays: Trends, Challenges and Research Opportunities

Computers ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 41 ◽  
Author(s):  
Bruno da Silva ◽  
An Braeken ◽  
Abdellah Touhafi
Keyword(s):  
Sound Field ◽  
Spatial Diversity ◽  
Microphone Arrays ◽  
Research Opportunities ◽  
Gate Arrays ◽  
The Past ◽  
Current Trends ◽  
Field Programmable ◽  
Programmable Gate Arrays ◽  
Audio Data

Over the past decades, many systems composed of arrays of microphones have been developed to satisfy the quality demanded by acoustic applications. Such microphone arrays are sound acquisition systems composed of multiple microphones used to sample the sound field with spatial diversity. The relatively recent adoption of Field-Programmable Gate Arrays (FPGAs) to manage the audio data samples and to perform the signal processing operations such as filtering or beamforming has lead to customizable architectures able to satisfy the most demanding computational, power or performance acoustic applications. The presented work provides an overview of the current FPGA-based architectures and how FPGAs are exploited for different acoustic applications. Current trends on the use of this technology, pending challenges and open research opportunities on the use of FPGAs for acoustic applications using microphone arrays are presented and discussed.

scholarly journals Additive manufacturing in radiation oncology: a review of clinical practice, emerging trends and research opportunities

2020 ◽  
Vol 2 (1) ◽  
pp. 012003 ◽  
Author(s):  
Rance Tino ◽  
Martin Leary ◽  
Adam Yeo ◽  
Elizabeth Kyriakou ◽  
Tomas Kron ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Additive Manufacturing ◽  
Radiation Oncology ◽  
Research Opportunities ◽  
Emerging Trends
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