The document describes the fabrication process for a hermetic micro stimulator. It proposes moving from a batch process using multiple stations to a continuous single-station integrated work station (IWS). The IWS allows one-time handling of parts, reduces contamination risk, and incorporates leak testing and backfilling into the single station for enhanced reliability. Key features of the IWS include a vacuum chuck, nose cone for easy part loading, control software for automated recording and safety interlocks, and use of CO2 and Nd:YAG lasers for seven total welds.
Automobile signal test chamber is used to evaluate the
performance of products through simulate dynamic
operation for test materials exposed to varied intensity
of rain.
The document discusses the importance of protecting critical electrical equipment from transient voltage surges and temporary overvoltages (TOVs). It recommends using a hybrid surge protection device (SPD) that combines metal oxide varistors (MOVs) and selenium cells to effectively clamp voltages and survive TOVs, where an MOV-only SPD would fail. A hybrid SPD provides a "best in class" solution that can protect itself and downstream equipment from damaging voltage events.
El cyberbullying implica el uso de Internet, teléfonos móviles y videojuegos online para acosar psicológicamente a otros menores. Se considera un caso de cyberbullying cuando un menor atormenta, amenaza o humilla a otro a través de la tecnología. Las formas de manifestación son variadas, como publicar imágenes comprometedoras de la víctima en Internet o crear perfiles falsos en su nombre.
This document discusses boilers and related topics. It begins by classifying boilers based on the position of hot gases and water as either fire tube boilers or water tube boilers. It then describes fire tube boilers like Cochran and locomotive boilers. Water tube boilers like Babcock & Wilcox are also explained. Boiler accessories that improve efficiency such as superheaters, economizers and air preheaters are defined. Essentials of a good boiler and how boiler efficiency is calculated are summarized at the end.
The document discusses the injection molding process used at Sharp Electric industry in Gujranwala, Pakistan. It describes how plastic parts like chairs, tables, and religious items are manufactured. The process involves melting plastic raw materials like polypropylene and injecting them into molds under high pressure to form the desired shapes. The document outlines the key steps, equipment, materials used, and advantages of the injection molding process.
The document describes the fabrication process for a hermetic micro stimulator. It proposes moving from a batch process using multiple stations to a continuous single-station integrated work station (IWS). The IWS allows one-time handling of parts, reduces contamination risk, and incorporates leak testing and backfilling into the single station for enhanced reliability. Key features of the IWS include a vacuum chuck, nose cone for easy part loading, control software for automated recording and safety interlocks, and use of CO2 and Nd:YAG lasers for seven total welds.
Automobile signal test chamber is used to evaluate the
performance of products through simulate dynamic
operation for test materials exposed to varied intensity
of rain.
The document discusses the importance of protecting critical electrical equipment from transient voltage surges and temporary overvoltages (TOVs). It recommends using a hybrid surge protection device (SPD) that combines metal oxide varistors (MOVs) and selenium cells to effectively clamp voltages and survive TOVs, where an MOV-only SPD would fail. A hybrid SPD provides a "best in class" solution that can protect itself and downstream equipment from damaging voltage events.
El cyberbullying implica el uso de Internet, teléfonos móviles y videojuegos online para acosar psicológicamente a otros menores. Se considera un caso de cyberbullying cuando un menor atormenta, amenaza o humilla a otro a través de la tecnología. Las formas de manifestación son variadas, como publicar imágenes comprometedoras de la víctima en Internet o crear perfiles falsos en su nombre.
This document discusses boilers and related topics. It begins by classifying boilers based on the position of hot gases and water as either fire tube boilers or water tube boilers. It then describes fire tube boilers like Cochran and locomotive boilers. Water tube boilers like Babcock & Wilcox are also explained. Boiler accessories that improve efficiency such as superheaters, economizers and air preheaters are defined. Essentials of a good boiler and how boiler efficiency is calculated are summarized at the end.
The document discusses the injection molding process used at Sharp Electric industry in Gujranwala, Pakistan. It describes how plastic parts like chairs, tables, and religious items are manufactured. The process involves melting plastic raw materials like polypropylene and injecting them into molds under high pressure to form the desired shapes. The document outlines the key steps, equipment, materials used, and advantages of the injection molding process.
This document discusses condition monitoring of steam turbines through performance analysis. Performance analysis can detect degradation that reduces machine efficiency and output from things like deposits on blades and erosion of internal clearances. It outlines how to conduct valves wide open tests to monitor overall turbine performance over time. Examples are given showing how performance analysis detected efficiency reductions in high pressure sections of turbines due to blade deposition or other internal changes. Section parameters like enthalpy drop efficiency can also be monitored to localize areas of degradation. Condition monitoring through performance analysis helps determine when restorative maintenance is needed to retain turbines in service beyond their design lifetimes in a cost effective manner.
The document provides an update on the development of a hydrogen fuel cell booster unit. Work completed includes circuit designs for water refilling, overheating protection, and overcurrent protection. Testing is in progress on gas production and shock resistance. Future work includes finalizing frequency settings for maximum efficiency and testing solution resistance to set self-adjusting modulation. The project is on track to be completed by September 21, 2009.
The document summarizes lessons learned from commissioning centrifugal machinery at oil refineries in India. It provides case studies of issues that occurred during commissioning including equipment damage from improper preservation, interchange of similar equipment, and auxiliary system errors. The key lessons are to properly mark and store equipment, double check auxiliary systems, and avoid leaving temporary blinds or restrictions in place. Following proper procedures can prevent delays and expenses from commissioning issues.
Case Study - How Proactive Electrical Maintenance team saved a Power TransformerSystem Protection
This case study describes how proactive maintenance practices saved a power transformer. During routine maintenance, oil samples from three identical transformers were tested. One transformer's (Transformer #2) test results showed abnormally high ethylene levels, over 8 times the limit. Upon further inspection of Transformer #2 after de-energizing it, a washer was found resting on the core, causing sparking during insulation resistance testing. Removing the washer resolved the issue. The conclusion recommends carefully checking for foreign objects before commissioning transformers and conducting regular diagnostic tests to detect problems early.
This presentation covers differences between self-contained and instrument or transformer rated sites; transformer rated meter forms; test switches and CTs; Blondel’s Theorem; meter accuracy testing; checking the health of your CTs and PTs; and site verification (and not just meter testing). This presentation was given at the PREA Meter School in March 2022.
Thermal Techniques provides infrared inspection services to identify electrical, mechanical, and roofing issues before they cause equipment failure or downtime. Their inspections have found problems like loose fuse clips approaching 300 degrees, a faulty disconnect that could have caused a $9,000 compressor failure, and moisture trapped beneath a flat roof. These inspections have helped clients avoid downtime, emergency repairs, and costs estimated from $2,000 to $25,000 by identifying issues for scheduled maintenance.
Prospect of non destructive testing and condition monitoring scope in bangladeshFerdous Kabir
This document discusses non-destructive testing and condition monitoring practices in Bangladesh. It provides an overview of predictive maintenance techniques such as vibration analysis, oil analysis, ultrasound analysis, and thermal analysis that are used to monitor the condition of equipment like motors, pumps, fans, and turbines. The document also lists numerous industries in Bangladesh that utilize non-destructive testing and condition monitoring services including power plants, factories, oil and gas facilities, mining operations, and others. It describes specific non-destructive testing cases that were performed including dye penetrant testing, ultrasonic thickness gauging, and infrared thermography. Overall, the document provides information on applying non-destructive testing and condition monitoring to improve equipment reliability in Bangladeshi industries.
Catalyst Catastrophes in Syngas Production - II
Contents
Review of incidents by reactor
Primary reforming
Secondary reforming
HTS
LTS
Methanator
Reactor loading
Support media
Some general comments on alternative actions when a plant gets into abnormal operation
Est group harbin urea conference 2014 pap paper v1 englishJim Novak (吉因龙)
An Improved Tube Plugging Technique for Ammonia and Urea Plant Heat Exchangers. Eliminates Welding, Reduces Downtime and Increases Reliability
We will provide details documenting the development of Pop-A-Plugs specifically for this service and how this significantly reduces the shutdown time required to seal tubes in such service. Everybody knows that welded plugs in high pressure heat exchangers in urea plants are prone to leaking problems as the proper quality of the welds is difficult to assure. Pop-A-Plug® System plugs promise a much better reliability than welded plugs.
This document appears to be a catalogue from Super Seal Flexible Hose Limited listing their various hose products and specifications. It includes an index of contents which lists various hose series for applications like hydraulic, steam, liquefied petroleum gas, fuel dispensing, and more. It also includes sections about the company's infrastructure, SAE recommended practices for hose selection and installation, factors that affect hose service life, and how to analyze hose failures.
Hot Sockets are not a new phenomenon. Virtually every meter man has pulled a meter with a portion of the meter base around a blade melted and virtually every utility has been called to assist in the investigation of a fire at a meter box.
AMI deployments because of the volume of meters involved put a spot light on this issue.
What causes a hot socket?
Are the meters ever the cause of a meter box failure?
What are the things to look for when inspecting an existing meter installation?
What are the best practices for handling potential hot sockets?
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
1. Maintenance managers seek to optimize equipment by extending life and reducing costs. Thermography allows easy inspection of conveyor idlers to detect failures that impact production.
2. An infrared inspection was conducted on conveyors at a port to determine why idlers were deteriorating and needing frequent replacement. Over 400 idler garlands showed problems, most with a particular supplier's blue idlers.
3. Cutting open idlers from the two main suppliers revealed design differences that explained temperature variations. One supplier had inadequate seals and thin bearing caps, causing misalignment and overheating failures. Modifications were recommended.
Fukushima Daiichi Nuclear Power Station Accident April19 2011Joe Miller
This document provides an overview of the Fukushima Daiichi nuclear accident that occurred in 2011 following an earthquake and tsunami in Japan. It discusses the plant designs, accident progression, spent fuel pools, radiological releases, and impact on US reactors. Key events included the loss of off-site power and emergency diesel generators due to flooding, melting of reactor cores due to lack of cooling, hydrogen explosions, and venting of radioactive gases. Lessons learned included enhancing backup cooling capabilities and emergency procedures for extreme events.
This document discusses non-intrusive inspection methods like infrared thermal imaging, ultrasound, and vibration analysis that can be used to detect issues in marine vessels and offshore infrastructure to save costs on docking repairs. It provides examples of issues detected using these methods like bearing problems, leaks, misalignments, and electrical faults. The document promotes these inspection services as a way to plan necessary work and justify expenses to owners. It describes the instruments used and shows examples of problems found and repairs completed on various machinery components through non-destructive testing.
This presentation discusses site verification and detecting "hot sockets" or faulty meter connections that can overheat and cause fires. It covers the causes of hot sockets, such as worn meter socket jaws that lose tension and allow arcing. Tests were conducted using a fixture that could simulate hot sockets and measure temperature rises. The results showed that vibration was a major factor in initiating arcing and that current level played a small role in heating. Newer meters and techniques for detecting high temperatures in meters are aimed at finding hot sockets early. Visual inspections and hot socket indicators can also identify compromised sockets before failures occur.
This document discusses hot sockets, which occur when a loose or damaged meter socket jaw causes arcing between the meter and socket, generating heat. Three necessary conditions for a hot socket are identified: 1) loss of tension in a socket jaw, 2) vibration or another catalyst to initiate arcing, and 3) a minimal load present. Laboratory testing showed that vibration can catalyze arcing even at low current levels, and that repeated insertions degrade socket jaw tension over time. The document provides guidance on inspecting sockets and replacing damaged components to resolve hot socket issues.
The medical center was experiencing numerous errors and component failures on their linear accelerator (linac) due to unstable and fluctuating power from the facility. Initial power monitoring revealed minor sags and transients on the 480V supply. After the linac installation, errors occurred frequently but inconsistently. A second power monitor discovered a 70V transient modulated onto the 480V supply which was causing issues. Several component failures in the first three months prompted management to investigate further. A second, more robust power conditioner was installed and errors decreased dramatically, from 84 errors over 3 days to only 5 errors over 6 days. A UPS could have further reduced errors during power losses and outages. The second power conditioner significantly improved the stability and quality
The document discusses efficient operation and maintenance of boilers at NTPC Simhadri. It provides an overview of NTPC's journey and capacity, describes the types of boilers used, and outlines best practices adopted to reduce boiler tube leakages. These include improved startup procedures, monitoring of chemical parameters, thorough inspections and testing, and implementation of new technologies like acoustic leak detectors and process instrumentation systems. The presentation aims to share experiences in achieving zero boiler tube failures through preventative maintenance practices.
The Nuclear Regulatory Commission does not understand probabilities and therefore can't complete it's duty of licensing renewal. A Dirty Math Trick - see page 13-18.
NRC efforts to improve rulemaking tracking and reportingScott Portzline
TMI Alert says the rulemaking process is broken because there are no clear rules on how to conduct the rulemaking process. Therefore, public participation in regulating nuclear plants is subverted. This presentation shows just how badly the NRC ignores its own guidelines.
More Related Content
Similar to Three Mile Island’s new steam generator tubes could fail
This document discusses condition monitoring of steam turbines through performance analysis. Performance analysis can detect degradation that reduces machine efficiency and output from things like deposits on blades and erosion of internal clearances. It outlines how to conduct valves wide open tests to monitor overall turbine performance over time. Examples are given showing how performance analysis detected efficiency reductions in high pressure sections of turbines due to blade deposition or other internal changes. Section parameters like enthalpy drop efficiency can also be monitored to localize areas of degradation. Condition monitoring through performance analysis helps determine when restorative maintenance is needed to retain turbines in service beyond their design lifetimes in a cost effective manner.
The document provides an update on the development of a hydrogen fuel cell booster unit. Work completed includes circuit designs for water refilling, overheating protection, and overcurrent protection. Testing is in progress on gas production and shock resistance. Future work includes finalizing frequency settings for maximum efficiency and testing solution resistance to set self-adjusting modulation. The project is on track to be completed by September 21, 2009.
The document summarizes lessons learned from commissioning centrifugal machinery at oil refineries in India. It provides case studies of issues that occurred during commissioning including equipment damage from improper preservation, interchange of similar equipment, and auxiliary system errors. The key lessons are to properly mark and store equipment, double check auxiliary systems, and avoid leaving temporary blinds or restrictions in place. Following proper procedures can prevent delays and expenses from commissioning issues.
Case Study - How Proactive Electrical Maintenance team saved a Power TransformerSystem Protection
This case study describes how proactive maintenance practices saved a power transformer. During routine maintenance, oil samples from three identical transformers were tested. One transformer's (Transformer #2) test results showed abnormally high ethylene levels, over 8 times the limit. Upon further inspection of Transformer #2 after de-energizing it, a washer was found resting on the core, causing sparking during insulation resistance testing. Removing the washer resolved the issue. The conclusion recommends carefully checking for foreign objects before commissioning transformers and conducting regular diagnostic tests to detect problems early.
This presentation covers differences between self-contained and instrument or transformer rated sites; transformer rated meter forms; test switches and CTs; Blondel’s Theorem; meter accuracy testing; checking the health of your CTs and PTs; and site verification (and not just meter testing). This presentation was given at the PREA Meter School in March 2022.
Thermal Techniques provides infrared inspection services to identify electrical, mechanical, and roofing issues before they cause equipment failure or downtime. Their inspections have found problems like loose fuse clips approaching 300 degrees, a faulty disconnect that could have caused a $9,000 compressor failure, and moisture trapped beneath a flat roof. These inspections have helped clients avoid downtime, emergency repairs, and costs estimated from $2,000 to $25,000 by identifying issues for scheduled maintenance.
Prospect of non destructive testing and condition monitoring scope in bangladeshFerdous Kabir
This document discusses non-destructive testing and condition monitoring practices in Bangladesh. It provides an overview of predictive maintenance techniques such as vibration analysis, oil analysis, ultrasound analysis, and thermal analysis that are used to monitor the condition of equipment like motors, pumps, fans, and turbines. The document also lists numerous industries in Bangladesh that utilize non-destructive testing and condition monitoring services including power plants, factories, oil and gas facilities, mining operations, and others. It describes specific non-destructive testing cases that were performed including dye penetrant testing, ultrasonic thickness gauging, and infrared thermography. Overall, the document provides information on applying non-destructive testing and condition monitoring to improve equipment reliability in Bangladeshi industries.
Catalyst Catastrophes in Syngas Production - II
Contents
Review of incidents by reactor
Primary reforming
Secondary reforming
HTS
LTS
Methanator
Reactor loading
Support media
Some general comments on alternative actions when a plant gets into abnormal operation
Est group harbin urea conference 2014 pap paper v1 englishJim Novak (吉因龙)
An Improved Tube Plugging Technique for Ammonia and Urea Plant Heat Exchangers. Eliminates Welding, Reduces Downtime and Increases Reliability
We will provide details documenting the development of Pop-A-Plugs specifically for this service and how this significantly reduces the shutdown time required to seal tubes in such service. Everybody knows that welded plugs in high pressure heat exchangers in urea plants are prone to leaking problems as the proper quality of the welds is difficult to assure. Pop-A-Plug® System plugs promise a much better reliability than welded plugs.
This document appears to be a catalogue from Super Seal Flexible Hose Limited listing their various hose products and specifications. It includes an index of contents which lists various hose series for applications like hydraulic, steam, liquefied petroleum gas, fuel dispensing, and more. It also includes sections about the company's infrastructure, SAE recommended practices for hose selection and installation, factors that affect hose service life, and how to analyze hose failures.
Hot Sockets are not a new phenomenon. Virtually every meter man has pulled a meter with a portion of the meter base around a blade melted and virtually every utility has been called to assist in the investigation of a fire at a meter box.
AMI deployments because of the volume of meters involved put a spot light on this issue.
What causes a hot socket?
Are the meters ever the cause of a meter box failure?
What are the things to look for when inspecting an existing meter installation?
What are the best practices for handling potential hot sockets?
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
1. Maintenance managers seek to optimize equipment by extending life and reducing costs. Thermography allows easy inspection of conveyor idlers to detect failures that impact production.
2. An infrared inspection was conducted on conveyors at a port to determine why idlers were deteriorating and needing frequent replacement. Over 400 idler garlands showed problems, most with a particular supplier's blue idlers.
3. Cutting open idlers from the two main suppliers revealed design differences that explained temperature variations. One supplier had inadequate seals and thin bearing caps, causing misalignment and overheating failures. Modifications were recommended.
Fukushima Daiichi Nuclear Power Station Accident April19 2011Joe Miller
This document provides an overview of the Fukushima Daiichi nuclear accident that occurred in 2011 following an earthquake and tsunami in Japan. It discusses the plant designs, accident progression, spent fuel pools, radiological releases, and impact on US reactors. Key events included the loss of off-site power and emergency diesel generators due to flooding, melting of reactor cores due to lack of cooling, hydrogen explosions, and venting of radioactive gases. Lessons learned included enhancing backup cooling capabilities and emergency procedures for extreme events.
This document discusses non-intrusive inspection methods like infrared thermal imaging, ultrasound, and vibration analysis that can be used to detect issues in marine vessels and offshore infrastructure to save costs on docking repairs. It provides examples of issues detected using these methods like bearing problems, leaks, misalignments, and electrical faults. The document promotes these inspection services as a way to plan necessary work and justify expenses to owners. It describes the instruments used and shows examples of problems found and repairs completed on various machinery components through non-destructive testing.
This presentation discusses site verification and detecting "hot sockets" or faulty meter connections that can overheat and cause fires. It covers the causes of hot sockets, such as worn meter socket jaws that lose tension and allow arcing. Tests were conducted using a fixture that could simulate hot sockets and measure temperature rises. The results showed that vibration was a major factor in initiating arcing and that current level played a small role in heating. Newer meters and techniques for detecting high temperatures in meters are aimed at finding hot sockets early. Visual inspections and hot socket indicators can also identify compromised sockets before failures occur.
This document discusses hot sockets, which occur when a loose or damaged meter socket jaw causes arcing between the meter and socket, generating heat. Three necessary conditions for a hot socket are identified: 1) loss of tension in a socket jaw, 2) vibration or another catalyst to initiate arcing, and 3) a minimal load present. Laboratory testing showed that vibration can catalyze arcing even at low current levels, and that repeated insertions degrade socket jaw tension over time. The document provides guidance on inspecting sockets and replacing damaged components to resolve hot socket issues.
The medical center was experiencing numerous errors and component failures on their linear accelerator (linac) due to unstable and fluctuating power from the facility. Initial power monitoring revealed minor sags and transients on the 480V supply. After the linac installation, errors occurred frequently but inconsistently. A second power monitor discovered a 70V transient modulated onto the 480V supply which was causing issues. Several component failures in the first three months prompted management to investigate further. A second, more robust power conditioner was installed and errors decreased dramatically, from 84 errors over 3 days to only 5 errors over 6 days. A UPS could have further reduced errors during power losses and outages. The second power conditioner significantly improved the stability and quality
The document discusses efficient operation and maintenance of boilers at NTPC Simhadri. It provides an overview of NTPC's journey and capacity, describes the types of boilers used, and outlines best practices adopted to reduce boiler tube leakages. These include improved startup procedures, monitoring of chemical parameters, thorough inspections and testing, and implementation of new technologies like acoustic leak detectors and process instrumentation systems. The presentation aims to share experiences in achieving zero boiler tube failures through preventative maintenance practices.
Similar to Three Mile Island’s new steam generator tubes could fail (20)
The Nuclear Regulatory Commission does not understand probabilities and therefore can't complete it's duty of licensing renewal. A Dirty Math Trick - see page 13-18.
NRC efforts to improve rulemaking tracking and reportingScott Portzline
TMI Alert says the rulemaking process is broken because there are no clear rules on how to conduct the rulemaking process. Therefore, public participation in regulating nuclear plants is subverted. This presentation shows just how badly the NRC ignores its own guidelines.
Oil fires from Bakken Oil train derailments pose a dangerous threat to nearby nuclear plants. This presentation examines the threat potential at Three Mile Island near Harrisburg PA.
35th anniversary of the Three Mile Island accidentScott Portzline
This presentation was given to the members, local officials and guests of Three Mile Island Alert. It updates the member about Three Mile Island, Security and Fukushima. There are several links to video clips worth watching. Radioactive release estimate charts are near the end of the slideshow.
Probability Studies of Nuclear Accidents are Flawed - here's why.Scott Portzline
Now that the Fukushima Japan nuclear meltdowns have occurred, it seems that nuclear accidents happen more frequently than previously estimated. This short report shows examples of previous erroneous estimates, and finds 4 common flaws prevalent in projecting nuclear accident frequency.
1. The document criticizes the conclusions of the State-of-the-Art Reactor Consequence Analyses (SOARCA) report conducted by the Nuclear Regulatory Commission (NRC).
2. It argues that the SOARCA report was limited in scope by only analyzing a select number of severe accident scenarios and did not consider many real-world factors that could alter the outcomes.
3. The criticisms also question the reliability of the MELCOR software used in the analysis and the NRC's history of producing misleading probabilistic risk assessments.
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.
Digital Banking in the Cloud: How Citizens Bank Unlocked Their MainframePrecisely
Inconsistent user experience and siloed data, high costs, and changing customer expectations – Citizens Bank was experiencing these challenges while it was attempting to deliver a superior digital banking experience for its clients. Its core banking applications run on the mainframe and Citizens was using legacy utilities to get the critical mainframe data to feed customer-facing channels, like call centers, web, and mobile. Ultimately, this led to higher operating costs (MIPS), delayed response times, and longer time to market.
Ever-changing customer expectations demand more modern digital experiences, and the bank needed to find a solution that could provide real-time data to its customer channels with low latency and operating costs. Join this session to learn how Citizens is leveraging Precisely to replicate mainframe data to its customer channels and deliver on their “modern digital bank” experiences.
A Comprehensive Guide to DeFi Development Services in 2024Intelisync
DeFi represents a paradigm shift in the financial industry. Instead of relying on traditional, centralized institutions like banks, DeFi leverages blockchain technology to create a decentralized network of financial services. This means that financial transactions can occur directly between parties, without intermediaries, using smart contracts on platforms like Ethereum.
In 2024, we are witnessing an explosion of new DeFi projects and protocols, each pushing the boundaries of what’s possible in finance.
In summary, DeFi in 2024 is not just a trend; it’s a revolution that democratizes finance, enhances security and transparency, and fosters continuous innovation. As we proceed through this presentation, we'll explore the various components and services of DeFi in detail, shedding light on how they are transforming the financial landscape.
At Intelisync, we specialize in providing comprehensive DeFi development services tailored to meet the unique needs of our clients. From smart contract development to dApp creation and security audits, we ensure that your DeFi project is built with innovation, security, and scalability in mind. Trust Intelisync to guide you through the intricate landscape of decentralized finance and unlock the full potential of blockchain technology.
Ready to take your DeFi project to the next level? Partner with Intelisync for expert DeFi development services today!
Building Production Ready Search Pipelines with Spark and MilvusZilliz
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.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
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!
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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.
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Main news related to the CCS TSI 2023 (2023/1695)Jakub Marek
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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 .
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Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
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
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leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...alexjohnson7307
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Three Mile Island’s new steam generator tubes could fail
1. Three Mile Island’s
New Steam Generators Could Fail
due to an unanalyzed condition.
Scott D. Portzline
TMI Alert
Jan. 2017
2. The French company AREVA falsified
records and hid defects in major reactor
components it manufactured.
Areva manufactured the new Steam
Generators for TMI .
Scott D. Portzline
TMI Alert
Jan. 2017
3. The Nuclear Regulatory Commission (NRC) is allowing a
major safety component (Steam Generators) at TMI to
operate with an unanalyzed condition which could
result in a catastrophic failure and lead to radioactive
releases.
The NRC is allowing licensees to swap equipment
manufactured with significant design changes, and
without extensive testing or analysis, despite a
regulation requiring proper analysis for such alterations.
Conclusions:
4. TMI’s new Steam Generators have
significant design changes.
The new tube walls are only .0635 inch thick, giving them
less margin to failure than the previous design.
6. 15.597 tubes per steam generator
These Steam Generator Tubes expand at an unexpected
rate and are made from a new metal alloy. This expansion
is causing premature wear and thinning of the tube walls.
The tubes are vibrating and banging against each other in
some places.
Under higher temperatures, as in a transient
or accident conditions, the tubes might bow
even further, and more tubes could
experience the vibrations problem to the
point of rupture failures.
7. Fuel melts when there is insufficient heat removal from reactor.
Turbine Building
Steam Generators are the primary
method to remove heat from the reactor.
8. Steam Generator serve
critical safety functions.
• They are an integral part of the reactor coolant
pressure boundary, and thus are essential for
maintaining primary system pressure and coolant
inventory.
• They also isolate the radioactive fission products in
the primary coolant from the secondary system.
• Some of the unmonitored radiation released from the
1979 TMI accident escaped through the damaged
steam generators and out of the unfiltered turbine
building.
9. The Steam Generator tubes are bowing.
• The tubes bowed sufficiently far enough under normal
temperatures to cause some tubes to vibrate against
each other and cause premature wear of the tube
walls.
• Some tubes vibrated against metal plates and caused
similar wear.
• Under higher temperatures, as in a transient or
accident conditions, the tubes might bow even
further, and more tubes could experience the
vibrations problem to the point of rupture failures.
• A meltdown and radiological release could result.
THE PROBLEM
10. I brought this “accident” concern
to the NRC’s attention.
• Telephone conference with the NRC, TMI, Areva
(the manufacturer) - June 17, 2013.
• On another occasion the NRC dismissed my
concerns stating – a licensee is required to be
able to mitigate the loss of a major “steam line.”
11. • You wouldn’t want your mechanic to
say, “We haven’t analyzed if the new
brakes will fail on a hot day, but if they
do, you have emergency brakes and can
always downshift.”
• You want your mechanic to install brakes
that have been properly analyzed and
won’t fail under stress.
WRONG ANSWER
12. Backup plans aren’t always
what you’d think they are.
During the 1979 TMI accident, operators could not use a
backup system due to the HIGH PRESSURE.
“An auxiliary system which is designed to remove the
decay heat from the reactor was available, but it is only
operable at lower primary system pressure (<400 psi).
These attempts failed.”
Oak Ridge National Laboratories
13. On another occasion, about half of the
NRC staffers present agreed with me.
None of them were aware of the high
temperatures in the Steam Generators
during the 1979 accident. They had
believed that was not possible with.
• TMI openhouse April 1014.
• But nothing was ever done.
14. The current testing used for tube integrity does not
translate to the potential accident conditions.
The tube wear was unexpected. Therefore,
one can conclude that the testing was not
adequate even for normal conditions.
Arnie Gundersen of Fairewinds Associates
and David Lochbaum of the Union of
Concerned Scientists agree with me that the
Steam Generator design at TMI must be
properly analyzed. Both men are nuclear
engineers.
15. The new steam generators at the San Onofre
Nuclear Plant had tube failures.
San Onofre experienced a different, yet similar problem to
TMI’s, caused by a faulty design and the NRC’s failure to
regulate. When pushed by legislators and activists, the
company chose to close the plant last year and sue the
designers of their new steam generators.
http://articles.latimes.com/2013/jul/13/local/la-
me-07-14-san-onofre-tic-toc-20130714
How San Onofre's new steam generators
sealed nuclear plant's fate. LA Times
“The generators that were supposed to save
San Onofre ended up killing it, and today the
atomic behemoth sits idle, never again to
produce a watt of power.”
16. The NRC must be made to enforce this regulation at TMI:
50.59 Changes, tests and experiments.
The Title 10 Code of Federal Regulations, Section 50.59
requirements govern design changes between original
and replacement steam generators.
http://www.nrc.gov/reading-rm/doc-
collections/cfr/part050/part050-0059.html
Recommendations:
17. A licensee shall obtain a license amendment pursuant to Sec. 50.90
prior to implementing a proposed change, test, or experiment if the
change, test, or experiment would:
(iii) Result in more than a minimal increase in the consequences of
an accident previously evaluated in the final safety analysis report
(as updated);
(iv) Result in more than a minimal increase in the consequences of a
malfunction of an SSC important to safety previously evaluated in
the final safety analysis report (as updated);
(vi) Create a possibility for a malfunction of an SSC important to
safety with a different result than any previously evaluated in the
final safety analysis report (as updated);
Recommendations:
Specific regulatory sections of interest to TMI’s new steam generators:
Editor's Notes
TMI has new Steam Generators
Made a big deal of delivery picture
We are only looking at 2 components here. This is a diagram showing how a nuclear plant handles ^^the heat generated in the reactor to create electricity. Fuel melting inside the reactor is caused when not enough heat is removed from the reactor core. ^^ The steam generator is the primary source of heat removal. You can think of the steam generator as a heat exchanger.