The document discusses the internal mechanism of electric potential in superconductors carrying a superconducting current. It reveals that the potential difference is due to the difference in electron attraction energies between the normal and superconducting states of the material. This difference is caused by resonant electron-phonon interactions. The potential is analyzed at extreme temperatures of 0K and the critical temperature, using concepts from quantum mechanics, relativity, and BCS theory. The potential difference provides an explanation for electric fields in superconductors without resistance.
electron pairing and mechanism of superconductivity in ionic crystals Qiang LI
The behaviors of valence electrons and ions, particularly ion chains, in ionic crystals are important to understanding of the mechanism of superconductivity. The author has made efforts to establish a candidate mechanism of electron-pairing and superconductivity in ionic crystals.
Analyses are first made to a one-dimensional long ion lattice chain model (EDP model), with the presence of lattice wave modes having frequency ω. A mechanism of electron pairing is established.
Analyses are then extended to scenarios of 3D ionic crystals, particularly those with a donor/acceptor system, with emphasis being given to the interpretation and understanding of binding energy of electron pairs formed between electrons at the top/bottom of donor/acceptor band and the bottom/top of conducting/full band.
It is established that once the lattice/EM wave modes are established in its range, which can be long or even macroscopic, electron pairs are produced in the crystal’s electron system over the same range by stimulated transitions induced by the EM wave mode. The lattice wave mode having the maximum frequency ωM is of special significance with respect to superconductivity, for electron pairs produced by it can be stabilized in the context of a combination of some special factors (including energy level structure featured by donor/acceptor band and ωM) with a binding energy typically no smaller than hωM/(2π). A candidate mechanism of electron pairing in ion crystals and therefore of superconductivity is provided.
phonon as carrier of electromagnetic interaction between lattice wave modes a...Qiang LI
The new results reported here mainly include: 1) recognition that phonon is carrier of electromagnetic interaction between its lattice wave mode and electrons; 2) recognition that binding energy of electron pairs of high-temperature superconductivity is due to escape of optical threshold phonons, of electron pairs at or near Fermi level, from crystal by direct radiation; 3) recognition that binding energy of electron pairs of low-temperature superconductivity is possibly due to escape of non-optical threshold phonons by anharmonic crystal interactions; and, 4) recognition of a possible mechanism explaining why some crystals never have a superconducting phase. While electron pairing is phonon-mediated in general, HTS should be associated with electron pairing mediated by optical phonon at or near Fermi level (EF), so the rarity of HTS corresponds to the rarity of such pairing match.
A model of electron pairing, with depletion of mediating phonons at fermi sur...Qiang LI
We present a model of electron pairing based on nonstationary interpretation of electron-lattice interaction. Electron-lattice system has an intrinsic time dependent characteristic as featured by Golden Rule, by which electrons on matched pairing states are tuned to lattice wave modes, with pairing competition happening among multiple pairings associated with one electron state. The threshold phonon of an electron pair having a good quality factor can become redundant and be released from the pair to produce a binding energy. Lattice modes falling in a common linewidth compete with one another, like modes competing in a lasing system. In cuprates, due to near-parallel band splitting at and near Fermi Surface (EF), a great number of electron pairs are tuned to a relatively small number of lattice wave modes, leading to strong mode competition, transfer of real pairing-mediating phonons from EF towards the “kink”, and depletion of these phonons at and near EF.
electron pairing and mechanism of superconductivity in ionic crystals Qiang LI
The behaviors of valence electrons and ions, particularly ion chains, in ionic crystals are important to understanding of the mechanism of superconductivity. The author has made efforts to establish a candidate mechanism of electron-pairing and superconductivity in ionic crystals.
Analyses are first made to a one-dimensional long ion lattice chain model (EDP model), with the presence of lattice wave modes having frequency ω. A mechanism of electron pairing is established.
Analyses are then extended to scenarios of 3D ionic crystals, particularly those with a donor/acceptor system, with emphasis being given to the interpretation and understanding of binding energy of electron pairs formed between electrons at the top/bottom of donor/acceptor band and the bottom/top of conducting/full band.
It is established that once the lattice/EM wave modes are established in its range, which can be long or even macroscopic, electron pairs are produced in the crystal’s electron system over the same range by stimulated transitions induced by the EM wave mode. The lattice wave mode having the maximum frequency ωM is of special significance with respect to superconductivity, for electron pairs produced by it can be stabilized in the context of a combination of some special factors (including energy level structure featured by donor/acceptor band and ωM) with a binding energy typically no smaller than hωM/(2π). A candidate mechanism of electron pairing in ion crystals and therefore of superconductivity is provided.
phonon as carrier of electromagnetic interaction between lattice wave modes a...Qiang LI
The new results reported here mainly include: 1) recognition that phonon is carrier of electromagnetic interaction between its lattice wave mode and electrons; 2) recognition that binding energy of electron pairs of high-temperature superconductivity is due to escape of optical threshold phonons, of electron pairs at or near Fermi level, from crystal by direct radiation; 3) recognition that binding energy of electron pairs of low-temperature superconductivity is possibly due to escape of non-optical threshold phonons by anharmonic crystal interactions; and, 4) recognition of a possible mechanism explaining why some crystals never have a superconducting phase. While electron pairing is phonon-mediated in general, HTS should be associated with electron pairing mediated by optical phonon at or near Fermi level (EF), so the rarity of HTS corresponds to the rarity of such pairing match.
A model of electron pairing, with depletion of mediating phonons at fermi sur...Qiang LI
We present a model of electron pairing based on nonstationary interpretation of electron-lattice interaction. Electron-lattice system has an intrinsic time dependent characteristic as featured by Golden Rule, by which electrons on matched pairing states are tuned to lattice wave modes, with pairing competition happening among multiple pairings associated with one electron state. The threshold phonon of an electron pair having a good quality factor can become redundant and be released from the pair to produce a binding energy. Lattice modes falling in a common linewidth compete with one another, like modes competing in a lasing system. In cuprates, due to near-parallel band splitting at and near Fermi Surface (EF), a great number of electron pairs are tuned to a relatively small number of lattice wave modes, leading to strong mode competition, transfer of real pairing-mediating phonons from EF towards the “kink”, and depletion of these phonons at and near EF.
In computational physics and Quantum chemistry, the Hartree–Fock (HF) method also known as self consistent method is a method of approximation for the determination of the wave function and the energy of a quantum many-body system or many electron system in a stationary state
(This presentation is in .pptx format, and will display well when embedded improperly, such as on the SlideShare site. Please download at your discretion, and be sure to cite your source)
Review of the Hartree-Fock algorithm for the Self-Consistent Field solution of the electronic Schroedinger equation. This talk also serves to highlight some basic points in Quantum Mechanics and Computational Chemistry.
March 21st, 2012
candidate mechanisms of electron pairing near EF at T=0, binding energy of the electron pairs thus formed, and superconductivity in mono-atom crystals have been proposed.
Once EM wave modes are established in the ranges of their associated lattice chains of a crystal concerned, which ranges can be long or even macroscopic, electron-pairs are produced in the crystal’s electron system over these ranges. As EM wave modes with frequencies below certain value (corresponding to an energy value Δ) may have little contribution to stimulated transitions of electrons and electron-pairing, at T=0 each of the electrons at and near EF pairs with one of the electrons at energy levels of EF-hωM/(2π)≤E≤EF-Δ (where ωM is the maximum frequency of lattice wave modes of the system, which is often associated with a specific crystal orientation), resulting in a binding energy of at least Δ for each of these pairs at T=0.
candidate mechanisms of electron pairing near EF at T=0, binding energy of the electron pairs thus formed, and superconductivity in mono-atom crystals have been proposed.
Once EM wave modes are established in the ranges of their associated lattice chains of a crystal concerned, which ranges can be long or even macroscopic, electron-pairs are produced in the crystal’s electron system over these ranges. As EM wave modes with frequencies below certain value (corresponding to an energy value Δ) may have little contribution to stimulated transitions of electrons and electron-pairing, at T=0 each of the electrons at and near EF pairs with one of the electrons at energy levels of EF-hωM/(2π)≤E≤EF-Δ (where ωM is the maximum frequency of lattice wave modes of the system, which is often associated with a specific crystal orientation), resulting in a binding energy of at least Δ for each of these pairs at T=0.
Quantum mechanics for Engineering StudentsPraveen Vaidya
The Quantum mechanics study material gives insight into the fundamentals of the modern theory of physics related to Heisenberg uncertainty principle, wavefunction, concepts of potential well etc.
Это идея навязать фундаметальные резонансные частоты
колебаний фононов и/или их гармоники в известном
гелиевом сверхпроводнике другому материалу с очень
гибкой структурой
In computational physics and Quantum chemistry, the Hartree–Fock (HF) method also known as self consistent method is a method of approximation for the determination of the wave function and the energy of a quantum many-body system or many electron system in a stationary state
(This presentation is in .pptx format, and will display well when embedded improperly, such as on the SlideShare site. Please download at your discretion, and be sure to cite your source)
Review of the Hartree-Fock algorithm for the Self-Consistent Field solution of the electronic Schroedinger equation. This talk also serves to highlight some basic points in Quantum Mechanics and Computational Chemistry.
March 21st, 2012
candidate mechanisms of electron pairing near EF at T=0, binding energy of the electron pairs thus formed, and superconductivity in mono-atom crystals have been proposed.
Once EM wave modes are established in the ranges of their associated lattice chains of a crystal concerned, which ranges can be long or even macroscopic, electron-pairs are produced in the crystal’s electron system over these ranges. As EM wave modes with frequencies below certain value (corresponding to an energy value Δ) may have little contribution to stimulated transitions of electrons and electron-pairing, at T=0 each of the electrons at and near EF pairs with one of the electrons at energy levels of EF-hωM/(2π)≤E≤EF-Δ (where ωM is the maximum frequency of lattice wave modes of the system, which is often associated with a specific crystal orientation), resulting in a binding energy of at least Δ for each of these pairs at T=0.
candidate mechanisms of electron pairing near EF at T=0, binding energy of the electron pairs thus formed, and superconductivity in mono-atom crystals have been proposed.
Once EM wave modes are established in the ranges of their associated lattice chains of a crystal concerned, which ranges can be long or even macroscopic, electron-pairs are produced in the crystal’s electron system over these ranges. As EM wave modes with frequencies below certain value (corresponding to an energy value Δ) may have little contribution to stimulated transitions of electrons and electron-pairing, at T=0 each of the electrons at and near EF pairs with one of the electrons at energy levels of EF-hωM/(2π)≤E≤EF-Δ (where ωM is the maximum frequency of lattice wave modes of the system, which is often associated with a specific crystal orientation), resulting in a binding energy of at least Δ for each of these pairs at T=0.
Quantum mechanics for Engineering StudentsPraveen Vaidya
The Quantum mechanics study material gives insight into the fundamentals of the modern theory of physics related to Heisenberg uncertainty principle, wavefunction, concepts of potential well etc.
Это идея навязать фундаметальные резонансные частоты
колебаний фононов и/или их гармоники в известном
гелиевом сверхпроводнике другому материалу с очень
гибкой структурой
Feeling like nowhere else.
We travel many paths every day, and seek to discover many more paths all over the world, in
order to learn and to teach. We never stopped, neither myself nor my family, whom I have the
privilege to have by my side in this project.
It is a project made up not only of hotels, but also of ambitious objectives and unstoppable
passion. Our hotels are like our home, elegant and discreet yet open and alive, made up of people
who, together with their guests, seek experiences for which it is worth undertaking a long
journey. This is our path, this desire to be Baglioni Hotels, in the intimacy of its ambiance, the
subtle refinement of suggested details, the passion of every single gesture and every step, which has today made us a great group, a small dream which has become a great reality.
Uno Stile Di Vita is the bilingual half-yearly magazine of Baglioni Hotels, produced by the English publisher REM Productions.
Attractive visuals and articles signed by prestigious names in journalism make each edition of Uno Stile Di Vita an extremely high-quality magazine, where every page is designed to inform and inspire discerning travellers.
In this lecture will show an introduction to OpenStack, starting with the basic concepts of Cloud, keywords, what Openstack project is, the use cases, history, the project overview, features, tools and roadmap. The following topics will be covered:
* Introduction to Cloud Computing (Virtualization; Iaas, Paas, Saas; Public/Private/Hybrid/Community Cloud; Concepts: scalability, elasticity, provisioning,
self-service, multi tenant, and much more)
New technologies for Java and how to move projects to the cloud. This presentation is about new technologies and paradigms in the market. For example the project called Lightblue demostrate how to solve the problems with your old system such as the scalability and maintainability.
Getting Started with SOA using SwitchYardLuan Cestari
This lecture will give an introduction of SOA, giving an background of history and an overview of its specifications. How does Service Component Architecture (SCA, which is an open source standard) can help you to create services that can exposed by an Enterprise Service Bus (ESB). The SwitchYard implement SCA specification and also bring integration of many features you have available at WildFly application server. It also aims to simplify the integration with its built-in tools (like IDE) and components. You might surprise yourself with the Open Source power.
Latinoware 2013 - OpenStack RDO - A walkthrough by the Open Source Cloud Comp...Luan Cestari
In this lecture will show an introduction to OpenStack, starting with the basic concepts of Cloud, keywords, what Openstack project is, the use cases, history, the project overview, features, tools and roadmap. The following topics will be covered:
* Introduction to Cloud Computing (Keyword such: Virtualization; Iaas, Paas, Saas; Public/Private/Hybrid/Community Cloud; Concepts: scalability, elasticity , provisioning,
self-service, multi tenant, billing, etc)
* What is OpenStack?
* Who are using it?
* History, Releases/Versions and Evolution
* Architecture
* Sub-projects (Keystone, Glance, Nova, Openstack Networking/Quantum/Neutron, Cinder,
Swift, Horizon, Ceilometer, Heat, Oslo, Marconi, etc)
* Tools
* Next Releases
* Who helps and distributions (RDO, StackOps, Devstack, Dell OpenStack, etc)
Uno Stile Di Vita is the bilingual (Italian and English) half-yearly magazine of Baglioni Hotels, produced by the English publisher REM Productions.
Attractive visuals and articles signed by prestigious names in journalism make each edition of Uno Stile Di Vita an extremely high-quality magazine, where every page is designed to inform and inspire discerning travellers.
Baglioni hotels - The Unforgettable Italian TouchBaglioni Hotels
MAKING EVERY TRIP AN UNFORGETTABLE EXPERIENCE
The Baglioni Group’s Core Values: hospitality, Italian style, unique experiences, personalised services, locations of great historic value and prestige.
Our primary mission is maximum attention to the guest, in the knowledge that every guest is unique, a person with specific requirements according to their culture and the values associated with their concept of travel. Baglioni strives to make every stay an unforgettable experience: the Italian touch is the common denominator among all the hotels, both in their elegant, sophisticated architectural details and the sense of “home” which is felt inside each establishment. The group aims to be the first choice for those who believe in travelling as a complete, enriching and fulfilling experience, going above and beyond a mere room reservation.
phonon as carrier of electromagnetic interaction between lattice wave modes a...Qiang LI
The new results reported here mainly include: 1) recognition that phonon is carrier of electromagnetic interaction between its lattice wave mode and electrons; 2) recognition that binding energy of electron pairs of high-temperature superconductivity is due to escape of optical threshold phonons, of electron pairs at or near Fermi level, from crystal by direct radiation; 3) recognition that binding energy of electron pairs of low-temperature superconductivity is possibly due to escape of non-optical threshold phonons by anharmonic crystal interactions; and, 4) recognition of a possible mechanism explaining why some crystals never have a superconducting phase. While electron pairing is phonon-mediated in general, HTS should be associated with electron pairing mediated by optical phonon at or near Fermi level (EF), so the rarity of HTS corresponds to the rarity of such pairing match.
The heating of electrons and phonons, as well as thermal size effects in the Schottky barrier, are investigated. The dependence of the electron and phonon temperature is analyzed depending on the thermal boundary conditions and the sample size. It was found that in thin (ka << 1) diodes at the contacts, the electron temperature is much higher than the phonon temperature. When the condition of ideal heat transfer is satisfied in an ohmic contact, the temperatures of electrons and phonons coincide with the ambient temperature. In massive (ka >> 1) diodes in the volume, the temperatures of electrons and phonons coincide, and in an ohmic contact, the temperatures coincide with the ambient temperature. Gulomov Gafurjon, Kudiratulla Bekbaevich, & Umarov Kudiratulla Bekbaevich. (2020). THERMAL SIZE EFFECTS IN CONTACT METAL SEMICONDUCTOR. International Journal on Orange Technologies, 2(12), 34-37. https://doi.org/10.31149/ijot.v2i12.1060 Pdf Url: https://journals.researchparks.org/index.php/IJOT/article/view/1060/1005 Paper Url: https://journals.researchparks.org/index.php/IJOT/article/view/1060
The Propagation and Power Deposition of Electron Cyclotron Waves in Non-Circu...IJERA Editor
By solving the plasma equilibrium equation, ray equations, and quasi-linear Fokker-Planck equation, the ray
trajectories and power deposition of EC wave has been numerically simulated in non-circular HL-2A tokamak
plasma. The results show that shaping effect and temperature profile has little influence on ECRH, while plasma
density affect propagation and power deposition obviously. when the ordinary mode of EC waves are launched
from the mid-plane and low-field-side, ray trajectories are bended as the parallel refractive index increases and
even recurve to the low-field side when the parallel refractive index reaches to a certain value. Single absorption
decreases with increasing both poloidal and toroidal injection angle, and can be 100% when poloidal injection
angle is 180o and toroidal injection angle is less than 10o.
candidate mechanisms of electron pairing near EF at T=0, binding energy of the electron pairs thus formed, and superconductivity in mono-atom crystals have been proposed.
Once EM wave modes are established in the ranges of their associated lattice chains of a crystal concerned, which ranges can be long or even macroscopic, electron-pairs are produced in the crystal’s electron system over these ranges. As EM wave modes with frequencies below certain value (corresponding to an energy value Δ) may have little contribution to stimulated transitions of electrons and electron-pairing, at T=0 each of the electrons at and near EF pairs with one of the electrons at energy levels of EF-hωM/(2π)≤E≤EF-Δ (where ωM is the maximum frequency of lattice wave modes of the system, which is often associated with a specific crystal orientation), resulting in a binding energy of at least Δ for each of these pairs at T=0.
(v3) Phonon as carrier of electromagnetic interaction between vibrating latti...Qiang LI
With emphasis on time-dependency of electron-lattice system, we suggest the fallacy of presumed quantization in the context of electron-lattice system and propose the definition of phonons as carriers of electromagnetic interaction between electrons and vibrating lattice. We have investigated behaviors of electron-lattice system relating to “measured” energy, identified non-stationary steady state of electrons engaging in “electron pairing by virtual stimulated transitions”, recognized some origins of binding energy of electron pairs in crystals, and explained the state of electrons under pairing. Moreover, we have recognized the behavior and role of threshold phonon, which exists in electron pairing and is released by the electron from excited state, and have recognized the redundancy of the threshold phonon when the electrons under pairing have entered non-stationary steady state. We have also studied the effect of the stability of lattice wave on the evolution of the function of transition probability and on the stability of phonon-mediated electron pairs, the competition among multiple pairings associated with one same ground state, and determination of presence/absence of superconductivity by such competition.
Energy bands and electrical properties of metals newPraveen Vaidya
The chapter gives brief knowledge about formation of bands in solids. What are free electrons how they contribute for conductivity in conductors, but can be extended to semiconductors also.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdfMalak Abu Hammad
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
GridMate - End to end testing is a critical piece to ensure quality and avoid...ThomasParaiso2
End to end testing is a critical piece to ensure quality and avoid regressions. In this session, we share our journey building an E2E testing pipeline for GridMate components (LWC and Aura) using Cypress, JSForce, FakerJS…
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.
20240605 QFM017 Machine Intelligence Reading List May 2024
Akselrod article 1
1. Akselrod Gennadij Semenovich
Electric tension of a superconducting current
at extreme temperatures
Annotation
On the basis of representations about resonant character electron-phonon interactions in
superconductors the internal mechanism of the electric pressure’s presence of a superconducting
current is revealed. The consideration is conducted from the engineering point of view.
Interpretation of the terms
1. «Resonant character electron - phonon interaction»
The formulation, translating to the engineering level of the concept about potential holes, barriers,
steps, etc. Really, under certain conditions of energy (frequency) of the short-living virtual phonons
and cooper pars electrons can be comparable between themselves.
2. «Virtual (exchange) phonons»
Phonons are short-living quasi particles through which are connected electrons in cooper pars.
3. «Extreme temperatures»
It is the temperature, equal to zero of Calvin’s degrees at which the superconducting current reaches
the highest value, and critical temperature at which the superconducting current stops.
I. Introduction
The internal mechanism of the electric tension’s presence (potential difference) in
superconductors is revealed at the flow in them of a superconducting current. The formal device of
consideration of the superconductivity, based on the assumption of resonant character electron-
phonon interaction is for this purpose applied. This new approach is based nevertheless on
conclusions of theory BCS and two-fluid model of Landau-Ginzburg. Consideration is conducted
from the engineering point of view, at extreme temperatures for a superconducting current: 0ºК and
critical temperatures.
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2. The question’s analysis is conducted from the positions of quantum mechanics and the
relativity theory of Einstein. It is applied the deductive method - from the to the general.
Particularly, it is considered one cooper pair electrons, and conclusions extend on all superconducting
boson condensate. Total results can be interesting both from the point of view of superconductivity
research, and for measurement of quantity and characteristics of a superconducting current in
superconductors.
II. Consideration at 0К
1.1 It is supposed, generally, that there is some part of energy electron-phonon interaction (Еb),
responsible for an electron attraction. We admit, that:
phb TgE ω⋅⋅= )(
(1),
Where: Т - superconductor temperature; ωph - vibration frequency of the virtual (exchangeable)
phonons; g (T) - density of the acoustic wave vectors of the phonon’s vibration , responsible for an
attraction between electrons; ħ - Planck constant
1.2 It is supposed, that at Т=Т0=0К in superconductors are quantized:
- Eleсtron’s binding energy in a cooper pairs (Еbq);
- Vibration frequency (ωphq) of the virtual phonons, creating energy state for cooper pair electrons;
- Coherent length (of the correlation) (ξ0).
Then the equation (1) takes the form:
)};({)();( 00000 TTgTE phqbq ξωξ ⋅⋅=
(2),
And it is postulated, that:
||}/)({);( 0000 phqphq VTgT
ξξω =
(3)
Where ↓ phqV
- speed virtual phonons, vibrating with frequency
phq↓
ω
;
g (T0)> 0, only an integral number of the vectors, defining the direction of the impulses of the
acoustic phonons , fluctuating with frequency ωphq, and also 1 ≤ g (T0) ≤ ns (T0), where ns (T0) - density
of the cooper pair electrons at T0 0К.
2
3. From (3) follows, there are the integral number of wave’s length of the acoustic phonon’s
vibration, corresponding with ωphq at T0 =0К at the length of correlation ξ0.
In such context from (2) and (3) follows, that energy of cooper pairs electron’s connection at
T0 =0ºК is equal to an integer of oscillator (ћ ωphq), fluctuating with the minimum frequency for a
considered superconductor exchange phonons.
Certainly, thus it is meant, that at T0 =0К all electrons in a superconductor have only energy of
attraction Еbq, and there is no energy of electron’s pushing away. In other words, if to excite a
superconducting current under these conditions all electrons will participate in it [1].
2.3 For the concrete analysis we will consider microvolume of a superconductor with the
radius equal ξ0. We will allocate in this microvolume one cooper pair electron in the field of one ionic
lattice through which there is made an emission and absorption of the virtual phonons. The index «1»
will designate characteristics of one pair. Then it is possible to write down:
)};({)();( )1(0)1(0)1()1(0)1()1(0)1(0)1( TTgTE phqbq ξωξ ⋅⋅=
(4)
|);(|}/)({);( )1(0)1(0)1()1(0)1(0)1()1(0)1(0)1( TVTgT phqphq ξξξω
⋅=
(5)
And g (1) (T0 (1)) ≡ 1 (6)
By definition.
For simplification of the formula’s record is made the assumption, that as properties of this
microvolume are defined by surrounding characteristics of the sample’s geometry, an
electromagnetic field’s figuration and number of particles in the sample, becomes:
.;|;);(|);(| 0)1(00)1(000)1(0)1(0)1( TTTVTV phqphq === ξξξξ
The minimality ωphq (1) and Ebq (1) is defined only from a reality (6).
Then
);();( 00)1(00)1( TTE phqbq ξωξ ⋅=
(4а)
And
00000)1( /|);(|);( ξξξω TVT phqphq
=
(5а)
In the absence of a current (the basic power condition of a superconductor) we believe, that ωphq (1) is
absolute minimum frequency of exchange phonons vibration, which is equal to the frequency 0 (1) of
"zero fluctuations” of electrons in a considered superconductor at Т0=0К. This assumption is a
consequence of resonant character of electron-phonon interaction in superconductors.
As )1(0ω = 2E0 (1) / ћ, where Е0 (1) is the minimum of the electron’s energy in the basic
condition of a superconductor at Т0=0К, from (4а) and (5а) follows, that:
000)1(0)1(0)1( /|);(|2 ξξω TVEE phqbq
⋅=== (7),
And
3
4. 000)1(0 2/|);(| ξξ TVE phq
⋅=
(8),
At Т0=0К.
Let's excite a superconducting current in a superconductor. Now, considering resonant
character at electrons in cooper pair (superposition of wave functions) at Т0=0К, we assume, that
frequency of these electron’s fluctuations is equal to 2 )1(0ω =2E0 (1) / ћ. (9)
[Expression (9) is absolutely exact, as, according to theory BCS (and projecting on all cooper
pairs) energy «frosted» boson condensate remains former - only an impulse is changing [2].]
Then:
000)1(0)1( 2/|);(|' ξξ TVEE phqbq
⋅== (10),
Where E’bq (1) is energy of an attraction in cooper pair at the flow of a superconducting current
(the raised condition of a superconductor).
From (7) and (10) follows the important principal result at the power barrier between the
raised and basic condition of a superconductor (for energy of an attraction between electrons) at
Т0=0К, for one, separately taken cooper pair electrons, is size of the absolute value of the minimum
energy of electron in a superconductor:
(1) (1) 0(1)| ' | | |bq bqE E E− =
(11)
2.4 Now, for g (T0) =ns (T0) in the basic condition, where g (T0)> 1, but only an integer; ns -
concentration of cooper pair electrons at Т0=0К, it is possible to write down :
)1(0
2
000000 )}({2}/|);(|)({)( ETnTVTnTnE sphqssbq ⋅=⋅⋅⋅= ξξ
(12).
For the raised condition, at Т0=0К and g (T0) =ns (T0):
)1(0
2
000000 )}({}2/|);(|)({)(' ETnTVTnTnE sphqssbq ⋅=⋅⋅⋅= ξξ
(13)
And further, a difference between raised and the basic conditions:
0)}({' )1(0
2
0 <⋅−=−=− ETnEEE sbqbqbq
(14)
That is, superconductivity remains only until the difference of attraction’s energies between
electrons is negative at raised and the basic conditions is (at Т0=0ºК)
Expression (14) is anything to others, as in macroscopic quantity - a potential difference of a
superconducting current in a superconductor.
Really, for example, from the engineering point of view obviously, that if electric resistance of a
superconducting current is equally to zero, also tension )( RJU ×↓=
should be equal to zero. But
after all electric pressure is observed in practice. Now it is clear, that for superconductor current is
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5. responsible the difference of energies of electron’s tension between raised and the basic
superconductor conditions.
From the microscopic point of view, from (14) it is clear, that the more concentration of cooper pair
electrons, the more on absolute value a potential’s difference of a superconducting current, and
accordingly, and a current in a superconductor himself.
III. Consideration at critical temperature.
3.1 As at occurrence of a superconducting current of cooper pair electrons, - that is, the whole
boson condensate , - do not experience electric resistance, caused by dispersion of electrons on knots
and defects of a lattice, this is possible to consider, that they move with the greatest possible speed,
that is, with a velocity of light (cs) in the given material. It is natural, that this speed depends on
temperature of a superconductor and its density (so, and from length of correlation ξ); cs (T; ξ). Then,
it is possible to write for energy of an electronic superconducting condensate:
2
)};({)(2 TcmTnE sesce ξ⋅⋅=
(15),
At 0K≤T≤Tc; where me - weight of electron; Tc - critical temperature
On the other hand, phonons through which cooperate electrons in cooper pairs, possess energy:
2
)};({
)(
2
TVm
TnE
phph
scph
ξ⋅
⋅=
(16),
Where mph - weight of phonon, phV
- phonon’s speed of terragertion frequencies, also depending on
temperature and length of correlation.
Natural condition of resonant electron-phonon interaction is equality specified energies:
cphce EE =
(17).
From here, after simple calculations, follows
2
1
)/(2);(/|);(| phesph mmTcTV =ξξ
(18).
3.2 For a superconductor at critical temperature, considering (10); (14) and (18), we receive:
=⋅⋅−=− }
2
|);(|
{)}({);( 2
c
ccphq
csccbq
TV
TnTE
ξ
ξ
ξ
0)}({)/()};({)/( 22
1
=⋅⋅⋅−= cscccsphe TnTcmm ξξ (19),
Where: })/(1{)(~)( 4
0 cscs TTTnTn −⋅− (20),
Where Т - current temperature; Т → cT ;
Here it is necessary to consider also, that )2/(~)( 0 css TnTn ↓− (21),
Т0=0К [3].
IV. The Conclusion
Thus, it is opened the internal nature of presence of a potential difference of a superconducting
current in superconductors at extreme temperatures from the point of view of resonant electron-
5
6. phonon interactions. It has applied value also, both at research of superconductivity’s effect, and at
measurement of quantity of superconductors.
The literature:
[1] F.Z.Vilf of "The Basis of physics of superconductors», URSS, Moscow, 1988
[2] Collection of articles «The Superconductivity theory» I.L., Moscow, 1960
[3] T.Van Druzer, C.U.Terner «Physical bases of supeconductor knots and chains». Moscow: «Radio
and communication», 1984
The author's abstract
The internal mechanism of the electric tension’s presence (potential difference) in superconductors is
revealed at the flow in them of a superconducting current. The formal device of consideration of the
superconductivity, based on the assumption of resonant character electron-phonon interaction is for
this purpose applied. This new approach is based nevertheless on conclusions of theory BCS and two-
fluid model of Landau-Ginzburg. Consideration is conducted from the engineering point of view, at
extreme temperatures for a superconducting current: 0К and critical temperatures
The question’s analysis is conducted from the positions of quantum mechanics and the
relativity theory of Einstein. It is applied the deductive method - from the particular to the general.
Particularly, it is considered one cooper pair electrons, and conclusions extend on all superconducting
boson condensate. Total results can be interesting both from the point of view of superconductivity
research, and for measurement of quantity and characteristics of a superconducting current in
superconductors.
6
7. phonon interactions. It has applied value also, both at research of superconductivity’s effect, and at
measurement of quantity of superconductors.
The literature:
[1] F.Z.Vilf of "The Basis of physics of superconductors», URSS, Moscow, 1988
[2] Collection of articles «The Superconductivity theory» I.L., Moscow, 1960
[3] T.Van Druzer, C.U.Terner «Physical bases of supeconductor knots and chains». Moscow: «Radio
and communication», 1984
The author's abstract
The internal mechanism of the electric tension’s presence (potential difference) in superconductors is
revealed at the flow in them of a superconducting current. The formal device of consideration of the
superconductivity, based on the assumption of resonant character electron-phonon interaction is for
this purpose applied. This new approach is based nevertheless on conclusions of theory BCS and two-
fluid model of Landau-Ginzburg. Consideration is conducted from the engineering point of view, at
extreme temperatures for a superconducting current: 0К and critical temperatures
The question’s analysis is conducted from the positions of quantum mechanics and the
relativity theory of Einstein. It is applied the deductive method - from the particular to the general.
Particularly, it is considered one cooper pair electrons, and conclusions extend on all superconducting
boson condensate. Total results can be interesting both from the point of view of superconductivity
research, and for measurement of quantity and characteristics of a superconducting current in
superconductors.
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