The document discusses advances in 3D printing of functional materials using polymer inks. It describes how 3D printing techniques like fused deposition modeling and inkjet printing on powder beds can be used to print materials like ceramics, metals, and polymers. However, further work is needed to develop a broader array of robust printing materials and improve resolution to enable true personal manufacturing. The research group's focus includes creating new functional inks, broadening the materials palette, improving resolution 100x, and enhancing printing throughput. They have customized 3D printing systems and developed various inks, demonstrating applications in areas like electronics, sensors, structures, and optics.
Drop watcher jetxpert for inkjet applicationsYair Kipman
Drop watcher system for measuring droplet volume, velocity and trajectory for inkjet applications.
For inkjet heads such as Dimatix , Xaar 1002 Konika Minolta, Kyocera KJ4 Toshiba Tech, Seiko 508, Microfab, Trident Domino, VideoJet , Xerox M class. Samba,
www.jetxpert.com
IMI Waveform and Drop Optimization - Raymond 20160908 v1.0Michael Raymond
The document discusses optimizing inkjet printhead performance through waveform design and drop visualization. It describes how printhead architecture works to eject ink drops via piezoelectric actuation. Key aspects of optimization include adjusting pulse width to control single drop velocity and size, multi-drop waveform design for grayscale printing, and using measurement equipment to visualize drops and optimize characteristics like velocity and volume. The goal is to achieve consistent, uniform drops for improved color management and print quality.
IMI Printhead Selection Raymond 20140903 v1.0Michael Raymond
The document discusses various aspects of printhead selection and technology for inkjet printing. It provides information on different types of printhead technologies including shared wall, isolated channel, and bend mode technologies. It also discusses topics like nozzle plate materials and coatings, drop formation methods, key printhead specifications to consider like drop size and velocity, and examples of commercial printheads from various manufacturers.
The document compares various printing technologies and provides details on several processes. It summarizes:
1) Several analog printing processes including silk screen, offset, letterpress, and gravure printing.
2) Details of offset printing units and processes.
3) The history and current state of reel offset printing including increasing speeds up to 50,000 revolutions per hour.
4) Digital printing processes like electrophotography, inkjet, magnetography, nanography, and thermoprocessing.
5) Specific high-speed presses using these technologies from companies like HP, Xerox, Kodak, and Océ.
The document summarizes key trends in the global print market based on a presentation given at a Pira International conference. It discusses major demographic, economic, and technological trends impacting the print industry. These include a shift to digital media, rising costs, and demand for shorter runs and faster turnaround times. The document also reviews trends by end use sector and print process, noting opportunities for digital and inkjet but challenges for newspapers, books, and commercial printing. Regional growth patterns and an outlook emphasizing the rise of digital printing are also summarized.
Welas focuses on precision laser machining and offers a range of laser-based machining services including cutting, welding, drilling, and general machining. Their lasers can work on a variety of materials as thin as 5 micrometers and in complex shapes. Laser machining provides financial and environmental benefits over traditional methods by working without heat and requiring little post-processing. Welas has experience in medical and other industries where precision is required and can produce unique parts, prototypes, or production runs as well as provide contract manufacturing and additional related services.
1. The document discusses various metallic effects and special effect pigments that can be used for graphic arts applications, including metallic inks, pearlescent pigments, and PVD pigments.
2. It analyzes the graphic arts value chain and the needs of different industries like brand owners, printers, and ink manufacturers.
3. Different methods for applying metallic effects are compared, and metallic inks are often chosen for their effect and lower cost compared to methods like hot foil or metallic substrates.
A short introduction to 3D Printing (rapid prototyping / additive manufacturing) techniques. Made as an introduction for the DhubFab and FabLabBarcelona students.
Drop watcher jetxpert for inkjet applicationsYair Kipman
Drop watcher system for measuring droplet volume, velocity and trajectory for inkjet applications.
For inkjet heads such as Dimatix , Xaar 1002 Konika Minolta, Kyocera KJ4 Toshiba Tech, Seiko 508, Microfab, Trident Domino, VideoJet , Xerox M class. Samba,
www.jetxpert.com
IMI Waveform and Drop Optimization - Raymond 20160908 v1.0Michael Raymond
The document discusses optimizing inkjet printhead performance through waveform design and drop visualization. It describes how printhead architecture works to eject ink drops via piezoelectric actuation. Key aspects of optimization include adjusting pulse width to control single drop velocity and size, multi-drop waveform design for grayscale printing, and using measurement equipment to visualize drops and optimize characteristics like velocity and volume. The goal is to achieve consistent, uniform drops for improved color management and print quality.
IMI Printhead Selection Raymond 20140903 v1.0Michael Raymond
The document discusses various aspects of printhead selection and technology for inkjet printing. It provides information on different types of printhead technologies including shared wall, isolated channel, and bend mode technologies. It also discusses topics like nozzle plate materials and coatings, drop formation methods, key printhead specifications to consider like drop size and velocity, and examples of commercial printheads from various manufacturers.
The document compares various printing technologies and provides details on several processes. It summarizes:
1) Several analog printing processes including silk screen, offset, letterpress, and gravure printing.
2) Details of offset printing units and processes.
3) The history and current state of reel offset printing including increasing speeds up to 50,000 revolutions per hour.
4) Digital printing processes like electrophotography, inkjet, magnetography, nanography, and thermoprocessing.
5) Specific high-speed presses using these technologies from companies like HP, Xerox, Kodak, and Océ.
The document summarizes key trends in the global print market based on a presentation given at a Pira International conference. It discusses major demographic, economic, and technological trends impacting the print industry. These include a shift to digital media, rising costs, and demand for shorter runs and faster turnaround times. The document also reviews trends by end use sector and print process, noting opportunities for digital and inkjet but challenges for newspapers, books, and commercial printing. Regional growth patterns and an outlook emphasizing the rise of digital printing are also summarized.
Welas focuses on precision laser machining and offers a range of laser-based machining services including cutting, welding, drilling, and general machining. Their lasers can work on a variety of materials as thin as 5 micrometers and in complex shapes. Laser machining provides financial and environmental benefits over traditional methods by working without heat and requiring little post-processing. Welas has experience in medical and other industries where precision is required and can produce unique parts, prototypes, or production runs as well as provide contract manufacturing and additional related services.
1. The document discusses various metallic effects and special effect pigments that can be used for graphic arts applications, including metallic inks, pearlescent pigments, and PVD pigments.
2. It analyzes the graphic arts value chain and the needs of different industries like brand owners, printers, and ink manufacturers.
3. Different methods for applying metallic effects are compared, and metallic inks are often chosen for their effect and lower cost compared to methods like hot foil or metallic substrates.
A short introduction to 3D Printing (rapid prototyping / additive manufacturing) techniques. Made as an introduction for the DhubFab and FabLabBarcelona students.
High performance Serverless Java on AWS- GoTo Amsterdam 2024Vadym Kazulkin
Java is for many years one of the most popular programming languages, but it used to have hard times in the Serverless community. Java is known for its high cold start times and high memory footprint, comparing to other programming languages like Node.js and Python. In this talk I'll look at the general best practices and techniques we can use to decrease memory consumption, cold start times for Java Serverless development on AWS including GraalVM (Native Image) and AWS own offering SnapStart based on Firecracker microVM snapshot and restore and CRaC (Coordinated Restore at Checkpoint) runtime hooks. I'll also provide a lot of benchmarking on Lambda functions trying out various deployment package sizes, Lambda memory settings, Java compilation options and HTTP (a)synchronous clients and measure their impact on cold and warm start times.
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
Northern Engraving | Modern Metal Trim, Nameplates and Appliance PanelsNorthern Engraving
What began over 115 years ago as a supplier of precision gauges to the automotive industry has evolved into being an industry leader in the manufacture of product branding, automotive cockpit trim and decorative appliance trim. Value-added services include in-house Design, Engineering, Program Management, Test Lab and Tool Shops.
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor IvaniukFwdays
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the “Temporal Event Neural Networks: A More Efficient Alternative to the Transformer” tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChip’s Akida neuromorphic hardware IP further enhances TENNs’ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.
"$10 thousand per minute of downtime: architecture, queues, streaming and fin...Fwdays
Direct losses from downtime in 1 minute = $5-$10 thousand dollars. Reputation is priceless.
As part of the talk, we will consider the architectural strategies necessary for the development of highly loaded fintech solutions. We will focus on using queues and streaming to efficiently work and manage large amounts of data in real-time and to minimize latency.
We will focus special attention on the architectural patterns used in the design of the fintech system, microservices and event-driven architecture, which ensure scalability, fault tolerance, and consistency of the entire system.
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...Alex Pruden
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
AppSec PNW: Android and iOS Application Security with MobSFAjin Abraham
Mobile Security Framework - MobSF is a free and open source automated mobile application security testing environment designed to help security engineers, researchers, developers, and penetration testers to identify security vulnerabilities, malicious behaviours and privacy concerns in mobile applications using static and dynamic analysis. It supports all the popular mobile application binaries and source code formats built for Android and iOS devices. In addition to automated security assessment, it also offers an interactive testing environment to build and execute scenario based test/fuzz cases against the application.
This talk covers:
Using MobSF for static analysis of mobile applications.
Interactive dynamic security assessment of Android and iOS applications.
Solving Mobile app CTF challenges.
Reverse engineering and runtime analysis of Mobile malware.
How to shift left and integrate MobSF/mobsfscan SAST and DAST in your build pipeline.
2024 State of Marketing Report – by HubspotMarius Sescu
https://www.hubspot.com/state-of-marketing
· Scaling relationships and proving ROI
· Social media is the place for search, sales, and service
· Authentic influencer partnerships fuel brand growth
· The strongest connections happen via call, click, chat, and camera.
· Time saved with AI leads to more creative work
· Seeking: A single source of truth
· TLDR; Get on social, try AI, and align your systems.
· More human marketing, powered by robots
ChatGPT is a revolutionary addition to the world since its introduction in 2022. A big shift in the sector of information gathering and processing happened because of this chatbot. What is the story of ChatGPT? How is the bot responding to prompts and generating contents? Swipe through these slides prepared by Expeed Software, a web development company regarding the development and technical intricacies of ChatGPT!
High performance Serverless Java on AWS- GoTo Amsterdam 2024Vadym Kazulkin
Java is for many years one of the most popular programming languages, but it used to have hard times in the Serverless community. Java is known for its high cold start times and high memory footprint, comparing to other programming languages like Node.js and Python. In this talk I'll look at the general best practices and techniques we can use to decrease memory consumption, cold start times for Java Serverless development on AWS including GraalVM (Native Image) and AWS own offering SnapStart based on Firecracker microVM snapshot and restore and CRaC (Coordinated Restore at Checkpoint) runtime hooks. I'll also provide a lot of benchmarking on Lambda functions trying out various deployment package sizes, Lambda memory settings, Java compilation options and HTTP (a)synchronous clients and measure their impact on cold and warm start times.
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
Northern Engraving | Modern Metal Trim, Nameplates and Appliance PanelsNorthern Engraving
What began over 115 years ago as a supplier of precision gauges to the automotive industry has evolved into being an industry leader in the manufacture of product branding, automotive cockpit trim and decorative appliance trim. Value-added services include in-house Design, Engineering, Program Management, Test Lab and Tool Shops.
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor IvaniukFwdays
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the “Temporal Event Neural Networks: A More Efficient Alternative to the Transformer” tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChip’s Akida neuromorphic hardware IP further enhances TENNs’ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.
"$10 thousand per minute of downtime: architecture, queues, streaming and fin...Fwdays
Direct losses from downtime in 1 minute = $5-$10 thousand dollars. Reputation is priceless.
As part of the talk, we will consider the architectural strategies necessary for the development of highly loaded fintech solutions. We will focus on using queues and streaming to efficiently work and manage large amounts of data in real-time and to minimize latency.
We will focus special attention on the architectural patterns used in the design of the fintech system, microservices and event-driven architecture, which ensure scalability, fault tolerance, and consistency of the entire system.
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...Alex Pruden
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
AppSec PNW: Android and iOS Application Security with MobSFAjin Abraham
Mobile Security Framework - MobSF is a free and open source automated mobile application security testing environment designed to help security engineers, researchers, developers, and penetration testers to identify security vulnerabilities, malicious behaviours and privacy concerns in mobile applications using static and dynamic analysis. It supports all the popular mobile application binaries and source code formats built for Android and iOS devices. In addition to automated security assessment, it also offers an interactive testing environment to build and execute scenario based test/fuzz cases against the application.
This talk covers:
Using MobSF for static analysis of mobile applications.
Interactive dynamic security assessment of Android and iOS applications.
Solving Mobile app CTF challenges.
Reverse engineering and runtime analysis of Mobile malware.
How to shift left and integrate MobSF/mobsfscan SAST and DAST in your build pipeline.
2024 State of Marketing Report – by HubspotMarius Sescu
https://www.hubspot.com/state-of-marketing
· Scaling relationships and proving ROI
· Social media is the place for search, sales, and service
· Authentic influencer partnerships fuel brand growth
· The strongest connections happen via call, click, chat, and camera.
· Time saved with AI leads to more creative work
· Seeking: A single source of truth
· TLDR; Get on social, try AI, and align your systems.
· More human marketing, powered by robots
ChatGPT is a revolutionary addition to the world since its introduction in 2022. A big shift in the sector of information gathering and processing happened because of this chatbot. What is the story of ChatGPT? How is the bot responding to prompts and generating contents? Swipe through these slides prepared by Expeed Software, a web development company regarding the development and technical intricacies of ChatGPT!
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
The realm of product design is a constantly changing environment where technology and style intersect. Every year introduces fresh challenges and exciting trends that mold the future of this captivating art form. In this piece, we delve into the significant trends set to influence the look and functionality of product design in the year 2024.
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
Mental health has been in the news quite a bit lately. Dozens of U.S. states are currently suing Meta for contributing to the youth mental health crisis by inserting addictive features into their products, while the U.S. Surgeon General is touring the nation to bring awareness to the growing epidemic of loneliness and isolation. The country has endured periods of low national morale, such as in the 1970s when high inflation and the energy crisis worsened public sentiment following the Vietnam War. The current mood, however, feels different. Gallup recently reported that national mental health is at an all-time low, with few bright spots to lift spirits.
To better understand how Americans are feeling and their attitudes towards mental health in general, ThinkNow conducted a nationally representative quantitative survey of 1,500 respondents and found some interesting differences among ethnic, age and gender groups.
Technology
For example, 52% agree that technology and social media have a negative impact on mental health, but when broken out by race, 61% of Whites felt technology had a negative effect, and only 48% of Hispanics thought it did.
While technology has helped us keep in touch with friends and family in faraway places, it appears to have degraded our ability to connect in person. Staying connected online is a double-edged sword since the same news feed that brings us pictures of the grandkids and fluffy kittens also feeds us news about the wars in Israel and Ukraine, the dysfunction in Washington, the latest mass shooting and the climate crisis.
Hispanics may have a built-in defense against the isolation technology breeds, owing to their large, multigenerational households, strong social support systems, and tendency to use social media to stay connected with relatives abroad.
Age and Gender
When asked how individuals rate their mental health, men rate it higher than women by 11 percentage points, and Baby Boomers rank it highest at 83%, saying it’s good or excellent vs. 57% of Gen Z saying the same.
Gen Z spends the most amount of time on social media, so the notion that social media negatively affects mental health appears to be correlated. Unfortunately, Gen Z is also the generation that’s least comfortable discussing mental health concerns with healthcare professionals. Only 40% of them state they’re comfortable discussing their issues with a professional compared to 60% of Millennials and 65% of Boomers.
Race Affects Attitudes
As seen in previous research conducted by ThinkNow, Asian Americans lag other groups when it comes to awareness of mental health issues. Twenty-four percent of Asian Americans believe that having a mental health issue is a sign of weakness compared to the 16% average for all groups. Asians are also considerably less likely to be aware of mental health services in their communities (42% vs. 55%) and most likely to seek out information on social media (51% vs. 35%).
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
Creative operations teams expect increased AI use in 2024. Currently, over half of tasks are not AI-enabled, but this is expected to decrease in the coming year. ChatGPT is the most popular AI tool currently. Business leaders are more actively exploring AI benefits than individual contributors. Most respondents do not believe AI will impact workforce size in 2024. However, some inhibitions still exist around AI accuracy and lack of understanding. Creatives primarily want to use AI to save time on mundane tasks and boost productivity.
Organizational culture includes values, norms, systems, symbols, language, assumptions, beliefs, and habits that influence employee behaviors and how people interpret those behaviors. It is important because culture can help or hinder a company's success. Some key aspects of Netflix's culture that help it achieve results include hiring smartly so every position has stars, focusing on attitude over just aptitude, and having a strict policy against peacocks, whiners, and jerks.
PEPSICO Presentation to CAGNY Conference Feb 2024Neil Kimberley
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Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Lewis
1. Polymer inks !
Printing Functional Materials
Jennifer A. Lewis
University of Illinois
http://colloids.matse.illinois.edu
FAB8 2012
2. 3-D Printing - A Manufacturing Revolution?
Stratasys 3D Printer: Fused deposition modeling
of molten ink filaments
POPSCI
11.01.10
PopSci
11.02.11
Urbee car
Z-Corp 3D Printer: Inkjet printing on powder bed
3. Several advances needed for 3-D printing of
high performance, functional materials
“Before
this
personal
manufacturing
revolution
can
take
place,
though,
researchers
will
need
to
develop
a
broader
array
of
robust
printing
materials…”
“…
rapidly
growing
market,
$1
B
sales…
about
70%
of
market
is
prototyping”
Chemical
&
Engineering
News,
Nov
14,
2011
issue
4. OUR FOCUS
Ø Create functional inks
Ø Broaden materials palette
Ø Improve feature resolution by 100x
Ø Print and fold - architectural complexity
Ø Enhance throughput by ~ 100x
…
expedite
transformation
from
rapid
prototyping
to
manufacturing
of
advanced
materials
5. Ink filament vs. droplet printing
Ink filament printing!
!
continuous filament!
is extruded through !
deposition nozzle!
Inkjet printing!
!
ink droplets are!
dispensed through!
fine orifice!
6. Custom stages designed for 3-D printing
!
3-axis, motion-controlled stages!
!• x-y-z translation distances, speeds, and positional accuracy!
!• constant pressure vs. displacement!
!• rotational axis !
!• pattern flexibility/control!
!• customized software!
Moderate Area, High Precision! Large Area, High Speed Stage!
!10x10x5 cm3 ± 50 nm ! ! 1m2x10 cm ± 5 µm!
! V = 0.1 -10 mm/s ! ! ! V = 1 -1000 mm/s !!
7. Custom inks designed for 3-D printing
Ink design and deposition
• ink must flow through nozzle without jamming
• ink filaments must form high integrity interfaces
• ink must solidify rapidly (via gelation, coagulation, or evaporation)
• concentrated inks minimize shrinkage during drying
colloidal inks! fugitive inks! nanoparticle inks! polyelectrolyte inks! sol-gel inks!
250
µm
250
nm
decreasing
feature
size
8. We have printed multiple materials
Nano
Micro
Millimeter
Al2O3
ceramic
inks
Stainless
ZrO2
ITO
steel
HA
TiO2
Titanium
Commercial
3D
Printers
Silver
BaTiO3
SiO2
Li
Ion
metallic
inks
Compounds
PZT
Silk
PECs
Epoxy
Ormoclear
polymer
inks
Lewis
group
inks
pHEMA
pHA
>
40
papers,
7
patents
9. We have demonstrated several applications
Applications
Electrical:
- Flexible electronics Al2O3
- Transparent conductive Stainless
ZrO2
surfaces ITO
steel
- Solar metallization HA
TiO2
Titanium
- 3D antennas
Silver
BaTiO3
SiO2
Printed
Nanostructures
Sensors:
Li
Ion
- PZT arrays Compounds
PZT
- Gas sensors
Structural:
- Lightweight structures Silk
- Self-healing polymers PECs
- Molten metal filters
- Al2O3/Al composites
Epoxy
Ormoclear
Optical:
- PBG structures
- Polymer waveguides
pHEMA
pHA
and tissue scaffolds…
>
40
papers,
7
patents
10. Silver inks for flexible electronics
20
nm
average
,
5
–
50
nm
distribution
Ahn,
Duoss,
Nuzzo,
Rogers,
Lewis,
et
al.,
Science
(2009);
Ahn,
Duoss,
and
Lewis,
US-‐Patent
7,922,939
11. Silver inks for flexible electronics
!
Silver inks are highly conductive as-printed
Ahn,
Duoss,
Nuzzo,
Rogers,
Lewis,
et
al.,
Science
(2009);
Ahn,
Duoss,
and
Lewis,
US-‐Patent
7,922,939
Russo
et
al.,
Advanced
Materials
(2011)
12. Pen-on-Paper flexible electronics
Fill rollerball pen with
conductive silver ink
Print silver electrodes
on paper
!
Movie
of
pen-‐on-‐paper
printing
of
conductive
electrodes
http://www.youtube.com/watch?v=dfNByi-‐rrO4
to
wire
up
LEDs
“on-‐the-‐fly”
Printed electrodes are
mechanically robust,
electrically conductive
Integrate with surface-
mounted LEDs
Ahn,
Russo,
Lewis,
et
al.
Advanced
Materials
(2011).
13. Solar Panels: Current Design
100 µm
interconnects
busbars
6”
PV
cell
Rigid, costly, active materials* occupy large area
*silicon PV cells and silver interconnects
14. Flexible concentrator photovoltaics
Example:
Si
microcells
+
Luminescent
layer
(UV-‐curable
and
organic
dye)
vast
reduction
in
active
materials
used
Rogers,
Nuzzo,et
al,
Nature
Comm.
(2011).
15. Printing interconnects and bus bars
610 µm nozzle
610
µm
nozzle
Bus
bars
Interconnects
30 µm nozzle
PV
cells
30
µm
nozzle
10 cmx10 cm
Interconnects
Sparse array of PV cells; finer interconnects
PV microcells populated on 6” glass wafer with
printed silver interconnects and bus bars
In
collaboration
with
Semprius
and
SAIC
16. Printing interconnects
10 cm x 10 cm
30
micron
nozzle
Interconnects
PV
cells
10 cmx10 cm
PV
microcells
populated
on
6”
glass
wafer
with
printed
silver
interconnects
and
bus
bars
17. Flexible concentrator photovoltaics
6” polyimide substrate
Printed interconnects are highly flexible and can withstand
repeated bending (1000’s cycles) without performance loss
In
collaboration
with
Semprius
and
SAIC
19. Conformal printing of electrically small antennas
copper-‐backed
substrate
8-‐arm
antenna
conductive
epoxy
silver
Electrodes
(100
µm)
glass
Support
feed
point
25.8
mm
diameter
ka
=
0.41
with
Bernhard
group
(ECE
@
Illinois)
2π ka
<
0.5
indicates
an
k= electrically
small
λ0 antenna
(ESA)
Adams,
Duoss,
Malkowski,
Ahn,
Nuzzo,
Bernhard,
Lewis,
Advanced
Materials
(2011)
20. Conformal printing of electrically small antennas
copper-‐backed
substrate
8-‐arm
antenna
conductive
epoxy
silver
Electrodes
(100
µm)
glass
Support
feed
point
25.8
mm
diameter
ka
=
0.41
with
Bernhard
group
(ECE
@
Illinois)
2π ka
<
0.5
indicates
an
k= electrically
small
λ0 antenna
(ESA)
Adams,
Duoss,
Malkowski,
Ahn,
Nuzzo,
Bernhard,
Lewis,
Advanced
Materials
(2011)
21. Performance characteristics
BW
~
14.3%
Resonant
at
~1.7
GHz
Concave
antennas
Efficiency
~71%
VSWR: a measure of signal reflected at component junctions
Ideally, VSWR = 1 (no reflected power, no mismatch loss)
Adams,
Duoss,
Malkowski,
Ahn,
Nuzzo,
Bernhard,
Lewis,
Advanced
Materials
(2011)
22. Printed origami – simple route to complex 3D forms
3-axis (x-y-z) motion stage
500
µm
Nozzle
(250
µm)
TiH2
Ink
1
mm
Glass
1
mm
Ahn, Shoji, Hansen, Hong, Dunand, Lewis, Advanced Materials (2010); Advanced Engineering Materials (2011)
23. Ink designs for printed origami
Ink Composition: butoxyethanol:DBP
• TiH2 particles
(mean diameter = 0.1, 22, or 65 µm)
folding
window
• PMMA-PnBA-PMMA binder
• Graded volatility solvent system
- dichloromethane (bp = 40°C)
- 2-butoxyethanol (bp = 171°C)
- dibutyl phthalate (bp = 340°C)
- Graded volatility solvent system enables control of elastic property evolution
- Wet-folding origami requires that printed features retain their pliability, while
being strong enough to handle and manipulate
R.
J.
Lang,
Origami
Design
Secrets:
Mathematical
Methods
for
an
Ancient
Art,
A
K
Ahn, Shoji, Hansen, Hong, Dunand, Lewis, Advanced Materials (2010) Peters,
Ltd.,
MA,
USA,
2003,
p.11.
24. Methods of folding and rolling
TiH2
Ti
Ti
TiO2
TiO2
Ti
Box structure: as-prepared (top), annealed at 1050oC in vacuum (middle), and in air (Bottom).
Cylindrical tower: annealed at 1050oC in vacuum (left) and in air (right).
Ahn, Shoji, Hansen, Hong, Dunand, Lewis, Advanced Materials (2010)
25. Titania Structure
Schematic
of
Folding
Scheme
TiO2 Crane
(2)
(3)
(4)
(1)
(6)
(5)
(7)
(8)
(9)
(10)
(11)
(13)
(12)
5
mm
(14)
(15)
(16)
Annealed at 1050oC for 2 h in air.
Ahn, Shoji, Hansen, Hong, Dunand, Lewis, Advanced Materials (2010)
26. Titanium Structures
2
mm
2
mm
2
mm
2
mm
2
mm
2
mm
2
mm
2
mm
2
mm
2
mm
5
mm
5
mm
Ahn, Shoji, Hansen, Hong, Dunand, Lewis, Advanced Materials (2010)
27. Printing 3D scaffolds for tissue engineering
Hydroxyapatite
Scaffolds
Hydrogel
Scaffolds
20
µm
Michna,
Wu,
Lewis,
Biomaterials
(2005);
Simon
et
al,
JBMR
(2007)
Barry,
Shepherd,
e
al.,
Adv.
Mater.
(2008).
t
Microvascular
Networks
3D rendering of
3D model Printed
micro-CT scan of implant scaffold
Lewis,
Smay,
Stuecker,
Cesarano,
J.
Am.
Ceram.
Soc.
(2006)
Wu,
Deconinck,
Lewis,
Adv.
Mater.
(2011)
28. High throughput printing via multinozzle arrays
5 mm
2D
2D
3D
Multinozzle design based on 1 mm
Murray’s law:
rparent = ∑ rbranch _ generation
3 3
Hierarchical branching network 200 μm
Created by CNC milling
All 64 nozzles are 205±3 µm on a side
Hansen,
Vericella,
Lewis,
unpublished.
29. Multinozzle arrays – Direct imaging of ink flow
Fugitive ink printed with an applied pressure of 2 MPa (300 psi)
0.5X playback 2
mm
Flow velocity
~ 5 mm/s
30. Multinozzle arrays – Large area printing
Printing at 600 psi permits a 1 cm/s deposition speed
Flow from all 64 nozzles at equal rates
1m
0.8 m
Hansen,
Vericella,
Lewis,
unpublished.
31. Multinozzle arrays – Uniform printed features
Uniform heights observed for each ink filament within 64-array
2D
2D
3D
1m
Hansen,
Vericella,
Lewis,
unpublished.
32. Multinozzle arrays – Uniform printed features
Uniform heights observed for each ink filament within 64-array
2D
2D
3D
1m
Example:
20”
diameter
part,
8
layers,
200
µm
features,
400
µm
center-‐to-‐center
spacingP
Printing
time
of
24
hours
(1
nozzle)
reduced
to:
22
minutes
(64
nozzle
array)
!
Hansen,
Vericella,
Lewis,
unpublished.
33. 3-D Printing - A Manufacturing Revolution
On the immediate horizon:
Ø New functional inks
Ø Broader materials palette
Ø Improved feature resolution
Ø Enhanced throughput
Ø High-speed printing
34. Lewis Group Members: !!
Post-Docs: !! Collaborators:!
Bok Ahn! Paul Braun!
Yongxiang Gao! Jennifer Bernhard!
Patrick Doyle (MIT)!
Jaime Juarez! David Dunand (Northwestern) !
Scott Slimmer! Placid Ferreira!
! David Kaplan (Tufts)!
Graduate Students: !! Jeffrey Moore !
Ralph Nuzzo!
Aaron Chan! Fio Omenetto (Tufts)!
Eric Duoss*! John Rogers !
Chris Hansen*! Avner Rothschild (Technion)!
Ken Schweizer!
Steve Kranz!
Ken Sandhage (GaTech)!
David Kolesky! Nancy Sottos !
David Lorang! Harry Tuller (MIT)!
Lucas Osterbur! Eric Weeks (Emory)!
Dave Weitz (Harvard) !
Sara Parker*! Scott White!
Analisa Russo! Pierre Wiltzius (UCSB)!
John Vericella! Charles Zukoski!
Brett Walker! !
!
Willie Wu*!
!
Undergrads: !!
David Bruk!
Ashley Gupta!
Unhaeng Heo ! Collaborators:
Jen
Bernhard,
Leah
Buechley,
David
Dunand,
Thomas Malkowski*!
Ralph
Nuzzo,
John
Rogers,
Nancy
Sottos,
Scott
Doug Tanaka!
Xaolin Zhang!
White,
Pierre
Wiltzius
!
*recent alumni!