Us 5946 Robbie Kwiatkowski
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In 1957, Charles Hard Townes and Arthur Leonard Schawlow began studying the infrared laser while at Bell Labs, shifting their focus to visible light. They published their theoretical calculations in Physical Review that year, coining the term "optical maser." Lasers have since been developed using chemical reactions, excimer gases, solid materials, fiber optics, dyes, free electrons, nuclear reactions, and photonic crystals, with predictions they could become both powerful weapons or useful tools.
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LECTURE 14 ATOMIC STRUCTURE ELECTRONS, PROTONS and NEUTRONS.docx
LECTURE 14 ATOMIC STRUCTURE: ELECTRONS, PROTONS and NEUTRONS
The above figure displays a cathode-ray tube (CRT). Today, a CRT is described as a vacuum tube that contains one or more electron guns and a phosphorescent screen, and is used to display images. It modulates, accelerates, and deflects electron beams onto a screen tocreate the images. The images may represent electrical waveforms (in an oscilloscope), pictures (a television screen, computer monitor), radar targets, or other phenomena.
We now know that cathode rays are streams of electrons observed in discharge tubes. If an evacuated glass tube (upper image) is equipped with two electrodes and a voltage is applied, glass behind the positive electrode is observed to glow (lower image), due to electrons emitted from the negative cathode.
The above “official” account presupposes that one knows what an electron is and what are its physical properties (mass and charge). The discovery of the electron opened up a whole new chapter in the understanding of matter. This led to the realization that light and matter could not be fully understood using the classicallaws of physics, and that a totally different way of understanding nature was needed. Thus emerged, beginning in the last years of the 19th century, a completely new description of light and matter. This new description became known as quantum mechanics, and resulted in the quantum theory of atoms, molecules and the chemical bond. This is the historical journey on which we shall embark in this Lecture.
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It was these experiments on cathode rays inside the cathode ray tube that drew the attention of Röntgen. After repeating the above experiments, he began to study the radiation emitted outside the cathode ray tube, using fluorescent chemical sensors, e.g., barium platinocyanide, to detect radiation. His discovery of x-rays on November 8, 1895 was communicated to the Physico-Medical Society of Würzburg later in November, 1895. A translation of his paper appeared two months later on January 23, 1896 in the English journal, Nature. (You can dial up this article on Gallica and read it for yourself).
Paraphrasing Louis XV(1710 – 1774) of France, were he not such a humble, unassuming man,Röntgenmight have said "A.
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This document summarizes information about a group project on lasers and x-rays. The group includes 5 members who will study the history, design, properties, types, and applications of lasers and x-rays. Lasers operate based on stimulated emission and consist of a gain medium, pumping mechanism, and optical feedback from mirrors. X-rays were discovered in 1895 by Wilhelm Roentgen and are produced when high voltage electrons collide with a metal target. Both lasers and x-rays have many medical, industrial, scientific, and other applications.
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Wilhelm Roentgen discovered x-rays in 1895 while experimenting with cathode ray tubes. X-rays are a form of electromagnetic radiation that can pass through objects and be used to see inside of them. Roentgen took the first ever x-ray photo, which was of his wife's hand and showed her bones. Both the medical and public reception to x-rays was mixed, with some seeing benefits but others feeling they revealed things that should not be seen. X-rays quickly found widespread use in medicine and became popular due to their ability to reveal the invisible.
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The document provides information about various scientists and scientific concepts through a series of connect questions. It begins by listing several Swiss Nobel laureates in science and connects them to the Large Hadron Collider located in Switzerland. It then provides clues to identify Satyendranath Bose's contributions in relation to bosons and the Higgs boson. Finally, it defines the term "hadron" as introduced by Lev Okun in 1962 to describe composite particles made of quarks.
Solar lasers
The document discusses using solar energy as a pumping source for lasers. It provides background on lasers and how they operate via stimulated emission. Researchers have started exploring using sunlight as the pumping source due to its abundant energy and broad spectrum. The first solar-pumped solid-state laser was reported in 1966, but interest increased in recent years. Some studies have achieved over 100 watts of continuous power from solar lasers. Further improving efficiency and achieving specific laser properties could broaden their applications in renewable energy.
Oral radiology lecture 1
oral radiology
Al Azhar University Gaza
Dr. lama khaled El Banna
Faculty of Oral and Dental Medicine
Noble prize 2017 in physics
Rainer Weiss, Barry Barish, and Kip Thorne were awarded the 2017 Nobel Prize in Physics for their contributions to the LIGO detector and the observation of gravitational waves. LIGO detected gravitational waves produced by colliding black holes over 1 billion years ago, providing the first direct observation of gravitational waves and confirming a prediction of Einstein's theory of general relativity. Weiss invented the laser interferometry technique used by LIGO to detect the gravitational waves, while Thorne and Barish played instrumental roles in establishing the LIGO project to realize the decades-long effort to directly detect gravitational waves.
HISTORY OF RADIOLOGY ppt.pptx
This document provides a history of radiology, beginning with the discovery of x-rays by Wilhelm Röntgen in 1895. It discusses the early experiments and researchers who contributed to the development of x-ray technology and its applications. Key events include the first dental x-ray taken by Otto Walkhoff in 1896, the introduction of the Coolidge tube in 1913 which improved x-ray tube stability, and the development of the first panoramic x-ray machine in the 1960s. The document also summarizes the history of computed tomography, which was pioneered by Godfrey Hounsfield in the 1970s.
Atomic_spectra.ppt.ppt
This document describes an atomic spectra experiment with the following objectives:
1. Determine the emission spectrum of hydrogen and other elements using a scanning spectrophotometer.
2. Perform flame tests to identify unknown metal solutions and observe their characteristic emission colors.
3. Measure the absorption spectrum of colored solutions and solids to learn about the relationship between absorption and concentration.
Radioisotopes
The document discusses the history and applications of radioisotopes and nuclear medicine. It describes how radioisotopes were discovered in the late 19th century by scientists like Roentgen, Becquerel, and the Curies. It then explains what radioisotopes are and how their atomic structure differs from stable isotopes. Finally, it summarizes some key applications of radioisotopes in medicine, including diagnostic imaging techniques like PET scans and gamma scanning that use radioactive tracers to examine organ function and identify health issues.
Marie Curie
Marie Skłodowska-Curie was a Polish and French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, winning the Physics prize in 1903 with her husband Pierre Curie and Henri Becquerel for their research on radiation. She was also the sole winner of the 1911 Chemistry Nobel Prize for her discovery of radium and polonium. During WWI, she helped develop mobile radiology units to treat soldiers and helped treat over a million wounded soldiers. She broke barriers as a female scientist and her research helped advance the understanding and use of radiation.
Similar to Us 5946 Robbie Kwiatkowski (20)
Laser Development History [Stanford laser history]
Laser Development History [Stanford laser history]
LECTURE 14 ATOMIC STRUCTURE ELECTRONS, PROTONS and NEUTRONS.docx
LECTURE 14 ATOMIC STRUCTURE ELECTRONS, PROTONS and NEUTRONS.docx
More from Gavin McLean
Callum Bruce
The Bluetooth Special Interest Group (SIG) is a nonprofit trade association founded in 1998 that develops and promotes the Bluetooth wireless technology standard. It has over 9,000 member companies from industries like telecommunications, computing, automotive, and others. The SIG drives the development of Bluetooth technology and helps members implement it in their products. Its headquarters are in the US with offices in other countries.
Jamie Ng 5940
Skins are a future clothing technology that are body tight, but the document argues that if skins are so tight fitting then there may be no need for clothing at all and people could just go without any clothes.
Raul Stanic 5946
The document discusses the history and future of gaming. It describes the earliest games from 1947 that were played on CRT screens and the first graphical computer game from 1952. It then outlines Ralph Baer's important contributions to video games in the 1950s and 1960s. The document speculates about characteristics of future gaming platforms, predicting they will be social, affordable, customizable, and educational. It raises questions about when realistic gaming could become dangerous if violence and nudity are represented in an indistinguishable way from reality.
Te;Eporter
Teleporters instantly transport objects from one place to another without travelling through the intervening space. Charles Fort coined the term "teleporter" while researching strange disappearances and appearances of objects, thinking it might explain paranormal phenomena. Teleporters could transport data or reconstruct objects, but it is unknown if they could teleport humans safely. While teleporters may make people lazy by allowing tasks to be done remotely, they could also help older individuals complete tasks they can no longer do physically. Scientists estimate teleporters may become common household appliances in 50 years if the technology can be developed to transport objects without harm.
Online Collaboration Music
The document discusses how young people today are immersed in a culture of remixing and mashing up existing media in creative ways. It provides examples of remix culture across various domains like music, fashion, and online content. It also discusses the history of remixing and how new technologies have challenged old concepts of copyright and ownership, enabling today's youth to easily manipulate, create and share user-generated content.
Future Technologies Project
The document outlines a 3-phase project to research and present on future technologies. In phase 1, the student will create a PowerPoint presentation on future technologies, upload it to SlideShare to get feedback, and reflect on revisions. In phase 2, the student will export the presentation as images and create a movie using Movie Maker with music, then upload it to YouTube. In phase 3, the student will gather feedback, provide feedback to others, reformat the movie for iPod, and reflect on the experience.
James Laurenson 5040
This document provides an overview of the history and future of iPods. It discusses how iPods were first launched by Apple in 2001 and have since sold over 100 million units worldwide. The document outlines the different generations of iPods released to date, including the iPod Classic, Nano, Shuffle, and Touch. It predicts that future iPods will have over 1 terabyte of storage, larger screens, more features, and capabilities normally found on gaming consoles as Apple looks to continue dominating the digital media player market.
More from Gavin McLean (7)
Recently uploaded
5th LF Energy Power Grid Model Meet-up Slides
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
GNSS spoofing via SDR (Criptored Talks 2024)
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.
Choosing The Best AWS Service For Your Website + API.pptx
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
TrustArc Webinar - 2024 Global Privacy Survey
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Presentation of the OECD Artificial Intelligence Review of Germany
Consult the full report at https://www.oecd.org/digital/oecd-artificial-intelligence-review-of-germany-609808d6-en.htm
June Patch Tuesday
Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
Dandelion Hashtable: beyond billion requests per second on a commodity server
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
Salesforce Integration for Bonterra Impact Management (fka Social Solutions A...
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on integration of Salesforce with Bonterra Impact Management.
Interested in deploying an integration with Salesforce for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Trusted Execution Environment for Decentralized Process Mining
Presentation of the paper "Trusted Execution Environment for Decentralized Process Mining" given during the CAiSE 2024 Conference in Cyprus on June 7, 2024.
Skybuffer SAM4U tool for SAP license adoption
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
Astute Business Solutions | Oracle Cloud Partner |
Your goto partner for Oracle Cloud, PeopleSoft, E-Business Suite, and Ellucian Banner. We are a firm specialized in managed services and consulting.
HCL Notes and Domino License Cost Reduction in the World of DLAU
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
dbms calicut university B. sc Cs 4th sem.pdf
Its a seminar ppt on database management system using sql
Building Production Ready Search Pipelines with Spark and Milvus
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
Columbus Data & Analytics Wednesdays - June 2024
Columbus Data & Analytics Wednesdays, June 2024 with Maria Copot 20
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...
Skybuffer AI, built on the robust SAP Business Technology Platform (SAP BTP), is the latest and most advanced version of our AI development, reaffirming our commitment to delivering top-tier AI solutions. Skybuffer AI harnesses all the innovative capabilities of the SAP BTP in the AI domain, from Conversational AI to cutting-edge Generative AI and Retrieval-Augmented Generation (RAG). It also helps SAP customers safeguard their investments into SAP Conversational AI and ensure a seamless, one-click transition to SAP Business AI.
With Skybuffer AI, various AI models can be integrated into a single communication channel such as Microsoft Teams. This integration empowers business users with insights drawn from SAP backend systems, enterprise documents, and the expansive knowledge of Generative AI. And the best part of it is that it is all managed through our intuitive no-code Action Server interface, requiring no extensive coding knowledge and making the advanced AI accessible to more users.
Main news related to the CCS TSI 2023 (2023/1695)
An English 🇬🇧 translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech 🇨🇿 version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
Generating privacy-protected synthetic data using Secludy and Milvus
During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.
Recently uploaded (20)
Choosing The Best AWS Service For Your Website + API.pptx
Choosing The Best AWS Service For Your Website + API.pptx
Presentation of the OECD Artificial Intelligence Review of Germany
Presentation of the OECD Artificial Intelligence Review of Germany
Dandelion Hashtable: beyond billion requests per second on a commodity server
Dandelion Hashtable: beyond billion requests per second on a commodity server
WeTestAthens: Postman's AI & Automation Techniques
WeTestAthens: Postman's AI & Automation Techniques
Salesforce Integration for Bonterra Impact Management (fka Social Solutions A...
Salesforce Integration for Bonterra Impact Management (fka Social Solutions A...
Trusted Execution Environment for Decentralized Process Mining
Trusted Execution Environment for Decentralized Process Mining
Astute Business Solutions | Oracle Cloud Partner |
Astute Business Solutions | Oracle Cloud Partner |
HCL Notes and Domino License Cost Reduction in the World of DLAU
HCL Notes and Domino License Cost Reduction in the World of DLAU
Building Production Ready Search Pipelines with Spark and Milvus
Building Production Ready Search Pipelines with Spark and Milvus
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...
Generating privacy-protected synthetic data using Secludy and Milvus
Generating privacy-protected synthetic data using Secludy and Milvus
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
Us 5946 Robbie Kwiatkowski
- 18. In 1957, Charles Hard Townes and Arthur Leonard Schawlow, then at Bell Labs, began a serious study of the infrared laser.
- 19. As ideas were developed, infrared frequencies were abandoned with focus on visible light instead.
- 20. The concept was originally known as an "optical maser". Bell Labs filed a patent application for their proposed optical maser a year later.
- 21. Schawlow and Townes sent a manuscript of their theoretical calculations to Physical Review, which published their paper that year.
- 25. Its said to be converted into highly dangerous weapons and also tools that would be used in everyday life.