scholarly journals A DATA-INTENSIVE APPROACH TO EXPLOIT NEW GNSS SCIENCE OPPORTUNITIES

2021 ◽  
Author(s):  
Vicente Navarro ◽  
Javier Ventura-Traveset
Keyword(s):  
Dual Band ◽  
Smart Devices ◽  
Data Repository ◽  
Infrastructure Development ◽  
Data Intensive ◽  
Development Plans ◽  
Intensive Approach ◽  
New Generation ◽  
Gnss Data ◽  
Interactive Algorithms

With the current GNSS infrastructure development plans, over 120 GNSS satellites (including European Galileo satellites)will provide, already this decade, continuous data, in several frequencies, without interruption and on a permanent basis.This global and permanent GNSS infrastructure constitutes a major opportunity for GNSS science applications. In themeantime, recent advances in technology have contributed "de-facto" to the deployment of a large GNSS receiver arraybased on Internet of Things (IoT), affordable smart devices easy to find in everybody’s pockets. These devices – evolvingfast at each new generation – feature an increasing number of capabilities and sensors able to collect a variety ofmeasurements, improving GNSS performance. Among these capabilities, Galileo dual band smartphones receivers andAndroid’s support for raw GNSS data recording represent major steps forward for Positioning, Navigation and Timing (PNT)data processing improvements. Information gathering from these devices, commonly referred as crowdsourcing, opensthe door to new data-intensive analysis techniques in many science domains. At this point, collaboration between variousresearch groups is essential to harness the potential hidden behind the large volumes of data generated by thiscyberinfrastructure. Cloud Computing technologies extend traditional computational boundaries, enabling execution ofprocessing components close to the data. This paradigm shift offers seamless execution of interactive algorithms andanalytics, skipping lengthy downloads and setups. The resulting scenario, defined by a GNSS Big Data repository with colocatedprocessing capabilities, sets an excellent basis for the application of Artificial Intelligence / Machine Learning (ML)technologies in the context of GNSS. This unique opportunity for science has been recognized by the European SpaceAgency (ESA) with the creation of the Navigation Scientific Office, which leverages on GNSS infrastructure to deliverinnovative solutions across multiple scientific domains.

scholarly journals Analysis of Implementing Spatial and Traffic Studies in the Development of Physical Planning Documents of Primorje-Gorski Kotar County

2012 ◽  
Vol 23 (1) ◽  
pp. 71-79
Author(s):  
Ljudevit Krpan
Keyword(s):  
Modern Society ◽  
Physical Planning ◽  
Infrastructure Development ◽  
Traffic Planning ◽  
Quality Planning ◽  
Development Plans ◽  
Space Requirements ◽  
New Generation ◽  
The City ◽  
Initial Research

The new generation of physical planning documents requires adaptation to new economic and other development plans as well as to new parameters of the modern society development. Therefore, it is necessary to insure high-quality planning foundations which will serve as the basis to determine the basic guidelines of physical plans. This refers especially to the need for integral consideration of the development of traffic and the traffic infrastructure in compliance with the space requirements and possibilities. In order to evaluate the objective parameters of physical and traffic planning, the traffic studies carried out as required for the production of the physical planning documentation of the new generation have been analyzed. The goal of research was to determine the credibility of infrastructure development plans predefined by the documents of physical planning from the region of the Primorje-Gorski Kotar County. The paper presents the results of initial research carried out for the requirements of producing the Physical and Traffic Integral Study of the Primorje-Gorski Kotar County and the city of Rijeka. According to overall distribution of responses it may be concluded that there is great gap in knowing the procedures of traffic and spatial planning among specialized traffic agencies and the rest of the respondents. KEY WORDS: physical and traffic planning, urbanism, physical planning documentation, space-traffic interrelation

scholarly journals A State-of-the-Art Analysis of Obstacle Avoidance Methods from the Perspective of an Agricultural Sprayer UAV’s Operation Scenario

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1069
Author(s):  
Shibbir Ahmed ◽  
Baijing Qiu ◽  
Fiaz Ahmad ◽  
Chun-Wei Kong ◽  
Huang Xin
Keyword(s):  
Collision Avoidance ◽  
Obstacle Avoidance ◽  
State Of The Art ◽  
Obstacle Detection ◽  
Crop Monitoring ◽  
Data Intensive ◽  
Structural Details ◽  
Dynamic Operating ◽  
New Generation ◽  
The Internet Of Things

Over the last decade, Unmanned Aerial Vehicles (UAVs), also known as drones, have been broadly utilized in various agricultural fields, such as crop management, crop monitoring, seed sowing, and pesticide spraying. Nonetheless, autonomy is still a crucial limitation faced by the Internet of Things (IoT) UAV systems, especially when used as sprayer UAVs, where data needs to be captured and preprocessed for robust real-time obstacle detection and collision avoidance. Moreover, because of the objective and operational difference between general UAVs and sprayer UAVs, not every obstacle detection and collision avoidance method will be sufficient for sprayer UAVs. In this regard, this article seeks to review the most relevant developments on all correlated branches of the obstacle avoidance scenarios for agricultural sprayer UAVs, including a UAV sprayer’s structural details. Furthermore, the most relevant open challenges for current UAV sprayer solutions are enumerated, thus paving the way for future researchers to define a roadmap for devising new-generation, affordable autonomous sprayer UAV solutions. Agricultural UAV sprayers require data-intensive algorithms for the processing of the images acquired, and expertise in the field of autonomous flight is usually needed. The present study concludes that UAV sprayers are still facing obstacle detection challenges due to their dynamic operating and loading conditions.

WiMAX and C bands semi-fractal circularly polarized antenna with satellite bands filtering properties

2018 ◽  
Vol 10 (8) ◽  
pp. 978-983 ◽  
Author(s):  
T. Sedghi ◽  
T. Aribi ◽  
A. Kalami
Keyword(s):  
Coplanar Waveguide ◽  
Ground Plane ◽  
Ground Surface ◽  
Unit Cell ◽  
Dual Band ◽  
Satellite Systems ◽  
Directional Radiation ◽  
Cell Patterns ◽  
Feature Based ◽  
New Generation

AbstractA compact coplanar waveguide (CPW)-fed circular polarization (CP)-antenna for new generation applications with dual bands filtering performance along with CP feature based on unit-cell semi-fractal is proposed in this paper. The CP-antenna privileges from semi-fractal radiator causes to have a miniaturized size. The stopped bands are designed to suppress the interference with present WLAN and ITU-R satellite systems. These properties are obtained by embedding semi-fractal unit-cell patterns stubs at the radiator and applying two rectangular-shaped slits inside CPW ground plane and a pair of grounded L-shaped strips. By introducing the first step of semi-fractal strips, and the mirrored defected ground surface structures, dual-band rejection functionality at WLAN (5–6 GHz) and ITU-R (7.725–8.5 GHz) are practically obtained. Besides that, semi-fractal strips results to two orthogonal modes stimulation on the radiator and CP attribute are obtained at WiMAX (3.1–3.7 GHz). CP-antenna presents omni-directional radiation H-plane patterns over the applicational frequency band. The CP-antennas size is 25 mm × 25 mm and fabricated on commercially available FR4-epoxy substrate with 1 mm thickness. Measured results illustrate that the proposed ultimate CP-antenna with miniaturized structure, efficient impedance tuning characteristics, and adequate radiation performances is the best choice for new generation of wireless communications.

Ubiquitous Learning for New Generation Learners' Expectations

2020 ◽  
pp. 176-200 ◽  
Author(s):  
Tarık Kişla ◽  
Bahar Karaoğlan
Keyword(s):  
Young People ◽  
Digital Technology ◽  
Environmental Influence ◽  
Smart Devices ◽  
Ubiquitous Learning ◽  
Time Duration ◽  
Generation Z ◽  
The World ◽  
New Generation ◽  
Information And Technology

It cannot be denied that environmental influence has a great effect on the characteristics of individuals: reason why people can be profiled with their generation. Generation is a collection of lifespans which fall into a time duration when major changes have occurred. The last decades are labeled as information and technology era where the world is witnessing great changes in lifestyles that go in parallel with the speed of evolving digital technology. Young people born after 2000 are categorized as “Generation Z,” who are born into a world of IT technology and are independent, social individuals competent in using technology and mostly interested in technology-driven/enabled events and devices. Due to this fact, portable/wearable smart devices may be used to offer new opportunities for delivering education tailored according to situational needs and preferences of these people. In this chapter, after touching distinctive characteristics of the generations, concepts regarding ubiquitous learning and how it aligns with the aspirations and values of Generation Z are highlighted.

scholarly journals Time and Cost Efficient Cloud Resource Allocation for Real-Time Data-Intensive Smart Systems

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5706
Author(s):  
Muhammad Shuaib Qureshi ◽  
Muhammad Bilal Qureshi ◽  
Muhammad Fayaz ◽  
Muhammad Zakarya ◽  
Sheraz Aslam ◽  
...  
Keyword(s):  
Resource Allocation ◽  
Cloud Computing ◽  
Real Time ◽  
Large Scale ◽  
Smart Devices ◽  
Budget Constraints ◽  
Smart Systems ◽  
Data Intensive ◽  
Cost Efficient ◽  
And Storage

Cloud computing is the de facto platform for deploying resource- and data-intensive real-time applications due to the collaboration of large scale resources operating in cross-administrative domains. For example, real-time systems are generated by smart devices (e.g., sensors in smart homes that monitor surroundings in real-time, security cameras that produce video streams in real-time, cloud gaming, social media streams, etc.). Such low-end devices form a microgrid which has low computational and storage capacity and hence offload data unto the cloud for processing. Cloud computing still lacks mature time-oriented scheduling and resource allocation strategies which thoroughly deliberate stringent QoS. Traditional approaches are sufficient only when applications have real-time and data constraints, and cloud storage resources are located with computational resources where the data are locally available for task execution. Such approaches mainly focus on resource provision and latency, and are prone to missing deadlines during tasks execution due to the urgency of the tasks and limited user budget constraints. The timing and data requirements exacerbate the efficient task scheduling and resource allocation problems. To cope with the aforementioned gaps, we propose a time- and cost-efficient resource allocation strategy for smart systems that periodically offload computational and data-intensive load to the cloud. The proposed strategy minimizes the data files transfer overhead to computing resources by selecting appropriate pairs of computing and storage resources. The celebrated results show the effectiveness of the proposed technique in terms of resource selection and tasks processing within time and budget constraints when compared with the other counterparts.

MINI-MACtm—A new generation dual—Band surveyor

1986 ◽  
Vol 60 (3) ◽  
pp. 221-228 ◽  
Author(s):  
Jonathan W. Ladd ◽  
Robert G. Welshe ◽  
Alison Brown ◽  
Mark Sturza
Keyword(s):  
Dual Band ◽  
New Generation

scholarly journals Development of Free Electron Lasers in Europe Local and Global Implications – 2016

2016 ◽  
Vol 62 (2) ◽  
pp. 203-209
Author(s):  
Ryszard S. Romaniuk
Keyword(s):  
Free Electron ◽  
Machine Construction ◽  
Light Sources ◽  
Infrastructure Development ◽  
Linear Accelerators ◽  
Plasma Energy ◽  
University Of Technology ◽  
Synchrotron Light ◽  
Synchrotron Light Sources ◽  
New Generation

Abstract Free electron laser FELs are built in Europe mainlyB as nondependent infrastructures, or as a development of synchrotron ones. They are constructed mainly in centres which have considerable experience with synchrotron light sources of the third generation like DESY, Trieste, INFN, etc. Advances in very energetically efficient superconducting linear accelerators for electron beams, like TESLA type, caused an abrupt development of FEL machines all over Europe. New generation of FELs emits light beam of extreme intensity, good parameters, in IR, VIS, UV, EUV and X-ray spectral regions. The machine construction teams comprise also of young active researchers from Poland. In particular, these is a considerable participation of M.Sc. and Ph.D. students from Warsaw University of Technology at building of FLASH I, FLASH II, and EXFEL machines. Unique experiences gathered at work with these large experiments result in development of these young teams, and their further engagement in new initiatives: laser, laser – accelerator, inertial, plasma, plasma – energy, etc. This is what we observe with satisfaction. However, due to the lack of large research infrastructures in Poland, we are not members of the infrastructure owner clubs. Our young researchers may take part in the initiatives only indirectly as members of cooperative teams from the leading countries. As a further consequence, there is also a confined access of Polish laser and accelerator researchers to some kinds of European infrastructure development projects now under realization within the H2020.

scholarly journals Governance of Heritage Conservation: Overview on Malaysian Practice

2018 ◽  
pp. 847-851
Author(s):  
Wan Nurul Mardiah Wan Mohd Rani ◽  
Mohd Shakir Tamjes ◽  
Mohammad Hussaini Wahab
Keyword(s):  
Best Practice ◽  
Social Economy ◽  
National Development ◽  
Heritage Conservation ◽  
Infrastructure Development ◽  
Kuala Lumpur ◽  
Heritage Sites ◽  
Great Debate ◽  
National Heritage ◽  
Development Plans

Heritage conservation refers to the process of preserving, repairing, restoring and maintaining sites and buildings that have significant heritage values. In Malaysia, currently, heritage sites and buildings are currently facing great threat from new urban development particularly due to the need to accommodate the growth of population, infrastructure development as well as economic growth. The scarce of land supply in the heart of Kuala Lumpur city for instance has exposed this modern heritage city to severe from commercialisation pressure because of the land price. Whether to preserve and conserve is still in great debate among the policymakers, stakeholders and academicians. The importance of conservation comprised a significant impact on the three pillars of sustainability; social, economy and environmental. This research examines the gap in related documents such as national development plans of Eleventh Malaysia Plan (EMP), National Physical Plan (NPP), National Urbanization Policy (NUP) and specific guiding document / policy on the heritage conservation such as National Heritage Act 2005 (NHA), ICOMOS Charters and relating current by-laws that facilitates the conservation activities in Malaysia. Hence, the focus of this paper is to review and identify the gap of present governance and legislations to protect such heritage values from being demolished and destroyed. Finally, the paper identifies several best practice strategies towards better governance of heritage conservation.

scholarly journals Influencing Factors in Determining Research Data Repository Infrastructure for Research Data Management

2019 ◽  
Vol 9 (1) ◽  
pp. 1655-1660
Keyword(s):  
Influencing Factors ◽  
Research Data ◽  
Higher Learning ◽  
Data Repository ◽  
Infrastructure Development ◽  
Electronic Journal ◽  
Research Papers ◽  
Research Data Management ◽  
Data Life Cycle ◽  
Learning Institutions

Increasing volumes of data are rapidly being produced by researchers with the advancement of digital technologies. In order to manage these data, a suitable research data repository infrastructure is needed by the higher learning institutions. Apart from storing the data, these data repository need to support the research data life-cycle that include the tasks of data creation, processing, analysis, preservation, access and reuse. The objective of this research is to deeply investigate the influencing factors fordata repository infrastructure in managing research data. A systematic literature review is conducted to perform the investigation where research papers are searched over three electronic journal databases. Selected papers are then analysed and a quality assessment has been conducted to identify the relevant infrastructure for research data repository. As a result, we identified the important components of research data repository infrastructure development.

Sign in / Sign up

Export Citation Format

Share Document