An enthusiastic public attended the Codevintec's Workshop held in Rome in October 2014.
Edgetech introduced its systems for Marine surveys: Side Scan Sonar, SubBottom Profilers, integrated instruments of the latest technology.
The applications are several: Harbour floor survey, dams and embankments, structure monitoring, disaster management, wreck location, archeology, geology, shallow gas detection...
Very interesting!
Nick - Benefits of Using Combined Bathymetry and Side Scan Sonar in Shallow W...Codevintec Italiana srl
Codevintec Days 2018 - Trieste
EDGETECH - Nick - Benefits of Using Combined Bathymetry and Side Scan Sonar in Shallow Water Surveys
Codevintec Days 2018 - Trieste
Relazione di Nick Lawrence - Edgetech
Design of Underwater wireless optical/acoustic link for reduction of back-sca...theijes
Underwater communication plays a significant role in the study of climate change through ocean monitoring and associated sensor networks. It is severely limited when compared to free space communication because water is essentially opaque to electromagnetic radiation except in the visible band. Even in the visible band, light penetrates only a few hundred meters in the clearest waters and much less in turbid waters due to the presence of suspended sediment or high concentrations of marine life. Consequently, acoustic techniques are been used for underwater communication systems which is relatively mature and robust. Acoustic systems are capable of long range communication. But traditional underwater acoustic communications cannot provide high enough data rates to enable monitoring technology. Optical wireless communications, centred around blue-green wavelengths, are being used as an alternative. Here a hybrid design is being introduced using an optical/acoustic link to reduce back scattering of transmitted light.
Topic on Underwater Communication which includes both underwater wireless and wired communication . A full detailed overview about the topic has been given. Pictures are given to visualize the topic in better way. Covers a major potion like Hydrophones and SONAR. Can be presented as a seminar topic as well .
Nick - Benefits of Using Combined Bathymetry and Side Scan Sonar in Shallow W...Codevintec Italiana srl
Codevintec Days 2018 - Trieste
EDGETECH - Nick - Benefits of Using Combined Bathymetry and Side Scan Sonar in Shallow Water Surveys
Codevintec Days 2018 - Trieste
Relazione di Nick Lawrence - Edgetech
Design of Underwater wireless optical/acoustic link for reduction of back-sca...theijes
Underwater communication plays a significant role in the study of climate change through ocean monitoring and associated sensor networks. It is severely limited when compared to free space communication because water is essentially opaque to electromagnetic radiation except in the visible band. Even in the visible band, light penetrates only a few hundred meters in the clearest waters and much less in turbid waters due to the presence of suspended sediment or high concentrations of marine life. Consequently, acoustic techniques are been used for underwater communication systems which is relatively mature and robust. Acoustic systems are capable of long range communication. But traditional underwater acoustic communications cannot provide high enough data rates to enable monitoring technology. Optical wireless communications, centred around blue-green wavelengths, are being used as an alternative. Here a hybrid design is being introduced using an optical/acoustic link to reduce back scattering of transmitted light.
Topic on Underwater Communication which includes both underwater wireless and wired communication . A full detailed overview about the topic has been given. Pictures are given to visualize the topic in better way. Covers a major potion like Hydrophones and SONAR. Can be presented as a seminar topic as well .
Under water acoustic (uw a) communication architecture and the key notions of...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Under water acoustic (uw a) communication architecture and the key notions of...eSAT Journals
Abstract The study of the communication architecture for the underwater is very important due the wide applications based on these sensing devices. The more observed examples of applications are climate change monitoring, study of marine life, pollution control, and military purposes. It is observed the radio frequency (RF) electromagnetic waves [1], Optical electromagnetic waves, underwater Optical communication [2] waves all have been used for the underwater sensor networking. But these have shown with its slight disadvantages for the underwater related works. So this can be overcome by the usage of the acoustic communication as a means of transmission technology for the underwater networked system. It is also observed that the underwater acoustic signals are suffering from the some transmission loss, high propagation delay, limited bandwidth. So to eliminate these observed factors with respect to the underwater sensor networks the communication architecture has been developed to provide the point to point, having low data rate and high bandwidth signal and delay tolerant applications. Therefore this article has been written to give the details of how the communication architecture can be designed and for the underwater network and the key factors which relates to the propagation of underwater acoustic signals. Keywords: UW-A, Doppler Spread, Attenuation, Variance
Seminar on underwater sensor network in which we are focusing on energy conservation or how to regain the energy in the sensor from tidal energy this is generating the new concept in this field
In this i tried to explain about under water communication.
Introduction of underwater communication.
Problem due to Multipath Propagation
Techniques used for underwater communication
1. Single Carrier Systems
2. MCM Techniques
3. Space-Time Modulation Techniques
Applications
Limitations
Conclusion
Een update over verschillende AUVs van Kongsberg Maritime met toepassingen en mogelijkheden van verschillende modellen in de reeks. Aandacht voor data kwaliteit van de peilingen.
Autonomous underwater vehicles (AUVs) often operate close to the seabed (5m-15m) enabling higher resolution surveys using high frequency sonars. Compact Autonomous surface vessels (ASVs) are often deployed in shallow water environments where deeper-draft manned survey vessels are unable to operate. On such vehicles there is limited space to deploy separate imaging, mapping and sub-bottom sonars. This presentation describes the technology deployed in the EdgeTech 2205 sonar system, which enables combined data acquisition in one system on AUVs and ASVs. Examples of the data acquired are given, which can include dual- or triple- frequency side scan, Multiphase Echosounder (MPES) swath bathymetry, and sub-bottom profiler data.
Underwater wireless communication networks (UWCNs) consist of sensors and autonomous underwater vehicles (AUVs) that interact, coordinate and share information with each other to carry out sensing and monitoring functions.
Unmanned underwater systems become increasingly important in the maritime and offshore, security and defence domain. TNO conducts research and experimentation on autonomous
underwater vehicles and underwater communication to advise government and industry on this topic and develop new concept solutions. An overview of the current development will be given
with focus on autonomous decision making for underwater application, cooperative autonomy and new application of underwater autonomous systems for maritime and offshore operations
Laminated Rubber Bearings, Heavy Duty Composites for Aerospace and UnderseaWilliam Hinks
Developed the concept of high-load rubber laminate bearings and the first application for helicopter blade retention in place of ball or roller bearings. LAMIFLEX Bearing-Seals for underwater hermetic shaft seals are a more recent innovation.
The use of remotely operated Autonomous Surface Vehicles (ASV’s) has become easy accessible since the introduction of the Teledyne Oceanscience Z-Boat, a versatile solution for a wide range of applications. In this session we will take a closer look at the various hydrographic applications and the advantages of using an unmanned system.
Under water acoustic (uw a) communication architecture and the key notions of...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Under water acoustic (uw a) communication architecture and the key notions of...eSAT Journals
Abstract The study of the communication architecture for the underwater is very important due the wide applications based on these sensing devices. The more observed examples of applications are climate change monitoring, study of marine life, pollution control, and military purposes. It is observed the radio frequency (RF) electromagnetic waves [1], Optical electromagnetic waves, underwater Optical communication [2] waves all have been used for the underwater sensor networking. But these have shown with its slight disadvantages for the underwater related works. So this can be overcome by the usage of the acoustic communication as a means of transmission technology for the underwater networked system. It is also observed that the underwater acoustic signals are suffering from the some transmission loss, high propagation delay, limited bandwidth. So to eliminate these observed factors with respect to the underwater sensor networks the communication architecture has been developed to provide the point to point, having low data rate and high bandwidth signal and delay tolerant applications. Therefore this article has been written to give the details of how the communication architecture can be designed and for the underwater network and the key factors which relates to the propagation of underwater acoustic signals. Keywords: UW-A, Doppler Spread, Attenuation, Variance
Seminar on underwater sensor network in which we are focusing on energy conservation or how to regain the energy in the sensor from tidal energy this is generating the new concept in this field
In this i tried to explain about under water communication.
Introduction of underwater communication.
Problem due to Multipath Propagation
Techniques used for underwater communication
1. Single Carrier Systems
2. MCM Techniques
3. Space-Time Modulation Techniques
Applications
Limitations
Conclusion
Een update over verschillende AUVs van Kongsberg Maritime met toepassingen en mogelijkheden van verschillende modellen in de reeks. Aandacht voor data kwaliteit van de peilingen.
Autonomous underwater vehicles (AUVs) often operate close to the seabed (5m-15m) enabling higher resolution surveys using high frequency sonars. Compact Autonomous surface vessels (ASVs) are often deployed in shallow water environments where deeper-draft manned survey vessels are unable to operate. On such vehicles there is limited space to deploy separate imaging, mapping and sub-bottom sonars. This presentation describes the technology deployed in the EdgeTech 2205 sonar system, which enables combined data acquisition in one system on AUVs and ASVs. Examples of the data acquired are given, which can include dual- or triple- frequency side scan, Multiphase Echosounder (MPES) swath bathymetry, and sub-bottom profiler data.
Underwater wireless communication networks (UWCNs) consist of sensors and autonomous underwater vehicles (AUVs) that interact, coordinate and share information with each other to carry out sensing and monitoring functions.
Unmanned underwater systems become increasingly important in the maritime and offshore, security and defence domain. TNO conducts research and experimentation on autonomous
underwater vehicles and underwater communication to advise government and industry on this topic and develop new concept solutions. An overview of the current development will be given
with focus on autonomous decision making for underwater application, cooperative autonomy and new application of underwater autonomous systems for maritime and offshore operations
Laminated Rubber Bearings, Heavy Duty Composites for Aerospace and UnderseaWilliam Hinks
Developed the concept of high-load rubber laminate bearings and the first application for helicopter blade retention in place of ball or roller bearings. LAMIFLEX Bearing-Seals for underwater hermetic shaft seals are a more recent innovation.
The use of remotely operated Autonomous Surface Vehicles (ASV’s) has become easy accessible since the introduction of the Teledyne Oceanscience Z-Boat, a versatile solution for a wide range of applications. In this session we will take a closer look at the various hydrographic applications and the advantages of using an unmanned system.
Industrial Robotic Drones
Our promise is to deliver true ‘experiences’ with drones, so that under any circumstance, a person can send a mission completely safe and autonomous on a ground, air, water and underwater vehicle.
Our commercial application integrates a set of inspiring projects that we are hands on. We founded our research over the idea that drones will do in the future, what smartphones did revolutionizing our lives.
Underwater acoustic communication is a technique of sending and receiving message below water.[1] There are several ways of employing such communication but the most common is using hydrophones. Under water communication is difficult due to factors like multi-path propagation, time variations of the channel, small available bandwidth and strong signal attenuation, especially over long ranges. In underwater communication there are low data rates compared to terrestrial communication, since underwater communication uses acoustic waves instead of electromagnetic waves.
Paco Santana of iRobot explains the current state of art for maritime robotics and the way ahead. The brief can be found here
http://higherlogicdownload.s3.amazonaws.com/AUVSI/656942e4-4448-41c3-877d-0c5f3ea40e63/UploadedImages/presentations/Apr282011/IRobot.pdf
This document contains information about the SAAB Seaeye remotely operated vehicles in the context of current and future merging technologies within the ROV field. For more info contact underwater robotics specialist, Chris Roper of http://www.roperresources.com
i sistemi sonar per studiare i fondali marini e oceanografici: SideScan Sonar e SubBottom Profiler forniscono immagini ad alta e altissima risoluzione dei fondali, degli oggetti che vi giacciono, e di ciò che nascondono al di sotto.
Presentazione tenuta a maggio 23 durante i Codevintec Days dal dott. Lorenzo Minno.
Ocean Optics: Fundamentals & Naval Applications Technical Training Short Cour...Jim Jenkins
This 2-day course is de¬signed for scientists, engi¬neers, and managers who wish to learn the fundamentals of ocean optics and how they are used to predict detectability of submerged objects such as swimmers or submarines. Examples will be provided on how much optical conditions vary by depth, by geographic location and season, and by wavelength. Examples from the in situ online databases and from satellite climatologies will be provided.
For the full video of this presentation, please visit:
http://www.embedded-vision.com/platinum-members/embedded-vision-alliance/embedded-vision-training/videos/pages/may-2016-embedded-vision-summit-nasa-keynote
For more information about embedded vision, please visit:
http://www.embedded-vision.com
Larry Matthies, senior research scientist at the NASA Jet Propulsion Laboratory, presents the "Using Vision to Enable Autonomous Land, Sea and Air Vehicles" keynote at the May 2016 Embedded Vision Summit.
Say you’re an autonomous rover and you’ve just landed on Mars. Vexing questions now confront you: “Where am I and how am I moving?” “What obstacles are around me?” “Are the obstacles moving?” “What other objects are around me that matter to my mission?” As it turns out, Earth isn’t that different from Mars in this regard. If you’re an autonomous car or drone, you face similar challenges. You’ve got to find combinations of sensors that work across different illumination, weather, temperature, and vehicle dynamics; processors that fit the size, weight, and power constraints of the system; and algorithms that can answer the questions given the sensors and processors available. In this talk, Matthies gives an overview of autonomous vehicle computer vision applications, explores successful approaches, and illustrates concepts with application examples from applications on Earth and in planetary exploration.
Qyudos Geosurvey Indonesia (QGI) is a geophysical, hydro-oceanographic survey consultancy operating in Bandung, Indonesia. QGI can assist you in field data acquisition, data processing, as well as analysis and report preparation. More than 100 locations have been visited and mapped all over Indonesia.
La mappatura del sottosuolo per il rilievo, il controllo e il catasto dei sottoservizi. I diversi georadar disponibili.
Presentazione tenuta ai CodevintecDays nel maggio 23 dall'ing. Maurizio Porcu.
Monitoraggio infrastrutture, strade e trasporti - CodevintecDays mag-23.pdfCodevintec Italiana srl
i migliori georadar per rilevare strade e pavimentazioni, ponti e cavalcavia, gallerie e infrastrutture, ballast, sottoservizi...
Presentazione tenuta a maggio 23 durante i Codevintec Days dall'ing. Maurizio Porcu.
magnetometri, elettromagnetometri, sismografi e e tecnologie di geofisica applicata per il monitoraggio dell'ambiente, la ricerca di discariche e ordigni inesplosi, lo studio del dissesto idrogeologico, il controllo degli argini...
relazione tenuta a maggio 23 per i CodevintecDays dal dott. Nicola Catalano.
georadar 3D: i vantaggi della tecnica Step Frequncy, la precisione dei rilievi, la rapidità delle indagini, le profondità raggiunte...
Presentazione tenuta a maggio 23 durante i Codevintec Days dall'ing. Maurizio Porcu.
magnetometria e sismica terrestre e marina: quali rilievi, quali studi, quali applicazioni?
Indagini sismiche attive e passive, sismica a rifrazione e riflessione...
ricerca di oggetti ferromagnetici, archeologia, geologia, ricerche di ordigni inesplosi...
Relazione tenuta ai CodevintecDays nel mag 23 dal dott. Nicola Catalano.
quali strumenti usare per ricerca e indagini su discariche, bonifiche di ex aree industriali, rilievi di siti contaminati, geologia e stratigrafia, ricerca di cavità nascoste nel sottosuolo...?
Presentazione tenuta ai CodevintecDays nel maggio 23 dal dott. Nicola Catalano.
Archeologia: gli strumenti per le indagini non-distruttive - CodevintecDays m...Codevintec Italiana srl
i georadar e i laserscanner da foro indagano - senza disturbarlo - il sottosuolo di chiese, monumenti, terreni. Permettono di individuare stanze nascoste, cripte, cavità, oggetti sepolti... le indagini pre-scavo rivelano i luoghi dove scavare o eseguire ulteriori indagini.
Nella relazione si raccontano anche i ritrovamenti di alcuni passaggi nascosti del Castello Sforzesco di Milano e di strutture interrate nel Parco Archeologico di Ostia Antica.
Relazione tenuta ai CodevintecDays nel mag 23 dall'ing. Maurizio Porcu.
I sistemi georadar per rilevare il sottosuolo senza scavare. I diversi modelli GSSI per le varie applicazioni: le frequenze da utilizzare, le modalità di rilievo ed elaborazione.
Relazione tenuta ai CodevintecDays nel mag 23 dall'ing. Maurizio Porcu.
Il software idrografico Teledyne PDS (ex PDS2000): navigazione avanzata, rilievi batimetrici e oceanografici, controlli dei dragaggi, lavori marittimi.
Presentazione dei diversi moduli disponibili, esempi di applicazioni, consigli d'uso...
Presentazione tenuta a maggio 23 durante i Codevintec Days dal dott. Lorenzo Minno.
Multibeam ad alta e altissima definizione - CodevintecDays mag-23.pdfCodevintec Italiana srl
I nuovi multibeam T20 e T51 ad alta e altissima definizione, dalle dimensione e prestazioni eccezionali.
Tenuta a maggio 23 durante i Codevintec Days da Andrea Faccioli, direttore commerciale.
Le tecnologie integrate per supportare i dragaggi: hardware e software per il controllo in tempo reale.
Tenuta a maggio 23 durante i Codevintec Days da Marco Fumanti, responsabile tecnico.
i sistemi integragi per monitorare le acque dei porti: i parametri chimico-fisici, le correnti, i fondali...
Presentazione tenuta a maggio 23 durante i Codevintec Days dal dott. Alessandro Scianca.
i sistemi oceanografici: sonde multiparametriche, CTD e altri parametri, ADCP, correntometri, mareografi, misuratori di portata, bottiglie per campionamento acque...
Presentazione tenuta a maggio 23 durante i Codevintec Days dal dott. Alessandro Scianca.
cosa offre Codevintec?
vendita di strumenti ad alta tecnologia per geofisica marina e terrestre, geologia, sismologia, vulcanologia, oceanografia, monitoraggio ambientale, strade, porti e infrastrutture...
E l'assistenza tecnica: in laboratorio, on site e in remoto.
Presentazione tenuta a maggio 23 durante i Codevintec Days da Andrea Faccioli, direttore commerciale e Marco Fumanti, responsabile tecnico.
il nuovo drone marino per rilievi in acque chiuse, porti, bacini irraggiungibili. leggero e resistente, in carbon-kevlar, ha un payload di oltre 40kg!
Presentazione tenuta a maggio 23 durante i Codevintec Days da Andrea Faccioli, direttore commerciale.
la presentazione dei magnetometri marini Geometrics in specifico per la ricerca degli ordigni inesplosi sui fondali. Tenuta a maggio 23 durante i Codevintec Days dal dott. Nicola Catalano.
Si occuperà di proporre e vendere strumentazione di geofisica marina, oceanografia, idrografia. Supportato dal reparto tecnico e dai commerciali più esperti, aiuterà il Cliente ad individuare la migliore soluzione per la sua applicazione di survey.
Si occuperà di proporre e vendere strumentazione di geofisica marina, oceanografia, idrografia. Supportato dal reparto tecnico e dai commerciali più esperti, aiuterà il Cliente ad individuare la migliore soluzione per la sua applicazione di survey.
Sarà impegnato nelle attività tipiche di un laboratorio elettronico: manutenzione e riparazione di strumenti scientifici. Aiuterà il personale più esperto nei collaudi, nell’integrazione e allestimento degli strumenti, nell’assistenza tecnica, anche online.
A regime, dopo formazione specifica e con il supporto aziendale, svilupperà le vendite degli strumenti progettati da Codevintec, attraverso: analisi della concorrenza, comunicazione, eventi, supporto ai commerciali per il mercato italiano, studio e apertura di nuovi mercati esteri...
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
AI for Every Business: Unlocking Your Product's Universal Potential by VP of ...
Edgetech Marine technologies presentation at Codevintec's Workshop (by Nick Lawrence)
1. An Introduction to
EdgeTech Sonar systems
Nick Lawrence
EdgeTech
Codevintec Workshop
9th October 2014
2. Introduction to EdgeTech
• Industry leader in Underwater Acoustics
• EdgeTech (formerly EG&G Marine Instruments)
– Started in 1966 by Doc Edgerton
• ORE Offshore
– Formed in 1963
Common Technologies
Underwater Acoustics
Digital Signal Processing
• Facilities in Massachusetts and Florida
3. Who uses Sonars ?
Offshore Oil and Gas industry
Regional surveys,
Drill site surveys,
Pipeline Inspections
Side Scan Sonars
Bathymetric systems
Sub-Bottom Profilers
USBL Systems
Military
MCM
Rapid Environmental Assessments
Side Scan Sonars
Bathymetric systems
AUV mounted systems
Port Authorities & Dredging Industry
Wreck location
Pre- and post- dredge surveys
Aggregate extraction surveys
Side Scan Sonars
Bathymetric systems
Sub-Bottom Profilers
Scientific Community
Habitat Mapping
Geological Surveys
Side Scan Sonars
Bathymetric systems
AUV mounted systems
Emergency Services
Search and Recovery Side Scan Sonars
4. Introduction to Side Scan Sonar
– Sideways looking ; 2 sides
– Wide vertical beam
– Narrow horizontal beam
– Towed body
5. EdgeTech Side Scan Frequencies
The selection of the best side scan
sonar frequency for any
application is a compromise
between range and
resolution. Lower frequency
systems provide longer range
(allowing a larger area to be
covered in each pass), whilst
higher frequency systems provide
a higher definition image
Chirp Centre
Frequency
Nominal
Frequency*
Range
120 kHz 100 kHz 250 to 500m
230 kHz 300 kHz 150 to 300m
410 kHz 400 kHz 130 to >200m
540 kHz 600 kHz 100 to 150m
850 kHz 900 kHz 50 to 75m
1600 kHz 1600 kHz 20 to 35m
You will sometimes see the ‘nominal’ frequency quoted
in specifications and marketing material.
8. Applications : Dams and Embankments
An excavator moves a 5 to 8 ton
armour rock into position on March
27, the first day of breakwater
repairs on the Sakonnet Point
Breakwater, damaged by hurricanes
Irene in August of 2011, and Sandy
in October of 2012.
EastBay Newpapers
11. Side scan sonar in disaster response
• Side scan sonar in Disaster Response
Wreck location
Wreck Monitoring
Body location
12. Applications : Air France AF447
The wreckage of Air France Flight 447 has been found by AUV some 3,900 metres, or
nearly 2.5 miles below the surface of the Atlantic Ocean. A search team led by the
Woods Hole Oceanographic Institution (WHOI, USA) located the downed plane off
Brazil’s northeastern coast.
…They were equipped with Edgetech 120kHz side-scan sonar.
PRESS RELEASE from
Woods Hole
Oceanographic Institution
(WHOI, USA)
18. Towed Sub-Bottom Profiler Systems
3100-P
Portable system
for smaller boats
with a choice of
two different
towfish:
216 2 – 16 kHz
424 4 – 24 kHz
3200-XS
Rack mount
system with a
choice of three
different towfish:
512 500 Hz – 12 KHz
216 2 – 16 kHz
424 4 – 24 kHz
19. Sub-Bottom Profiler Towfish
SB-0512i SB-216S SB-424
Frequency Range 500 Hz – 12 kHz 2 – 16 kHz 4 – 24 kHz
Pulse Type Frequency Modulated
Vertical Resolution
(depends on Pulse selected)
8 – 20 cm 6 – 10 cm 4 – 8 cm
Penetration (typical)
In coarse calcareous sand
In clay
20 m
200 m
6 m
80 m
2 m
40 m
Beam Width
(depends on centre frequency)
16° - 32° 17° - 24° 16° - 23°
Size (cms) 160 x 124 x 47 105 x 67 x 40 77 x 50 x 34
Weight 190 kg 76 kg 45 kg
Cable requirements 3 shielded twisted pairs (5 conductors used)
Maximum Operating Depth 300 m
Tow Speed 3 – 4 knots optimal, 7 knots max. safe operation
20. Applications : Geological Survey
Analysis of the Four Brothers
Slump,
Lake Champlain
Ghosh, Supriti J., 2012.
Unpublished Senior Thesis,
Middlebury College, Middlebury,
VT
22. Bathymetry Applications
• Bathymetric measurements
Enhanced data for Wreck
location and Wreck Monitoring
Routine Dredging Monitoring
Pre- and post- crisis checks to
determine the extent of
changes caused and any impact
on navigable channels
24. Bathymetry and Side Scan Data
• Co-registered SS with Bathymetry
• Longer Arrays for Higher Resolution Imagery
• 1 to 3cm Range Resolution
25. Swath Bathymetry : Dredge Monitoring
Dredge Monitoring of a channel in
Florida, USA
Sand waves can be seen building up in
the dredged channel
26. Swath Bathymetry : Dredge Monitoring
Markings from Dredge
Cutter
Quay wall
Entrance to side
channel
27. Summary
• Sonar Systems allow you to image what is under the water
• Applications
– Side scan sonar for clearance surveys
– Inspection of underwater assets such as pipelines, and embankments
– Side scan sonar in disaster response
– Sub-bottom profiler survey for site suitability
– Sub-bottom profiler inspection of sediment build up behind dams
– Bathymetry and Sub-bottom profiling for Dredging monitoring
– Bathymetric measurements to monitor navigable channels