The Liberty Mutual mixed team relay national championships took place at the Clearwater Beach. The mixed senior team 11+ age group division saw the Double Trouble team of Sanchez Smith and Naomi MacGuinness clock a winning time of 56:45, team Shepherd/Wright that featured Ella Shepherd and Jacob Wright finished second in 59:48, and the Transition […]

Physical Layer Security (PLS) and relay technology have emerged as viable methods for enhancing the security of wireless networks. Relay technology adoption enhances the extent of coverage and enhances dependability. Moreover, it can improve the PLS. Choosing relay and jammer nodes from the group of intermediate nodes effectively mitigates the presence of powerful eavesdroppers. Current methods for Joint Relay and Jammer Selection (JRJS) address the optimisation problem of achieving near-optimal secrecy. However, most of these techniques are not scalable for large networks due to their computational cost. Secrecy will decrease if eavesdroppers are aware of the relay and jammer intermediary nodes because beamforming can be used to counter the jammer. Consequently, this study introduces a multi-agent Q-learning-based PLS-enhanced secured joint relay and jammer in dual-hop wireless cooperative networks, considering the existence of several eavesdroppers. The performance of the suggested algorithm is evaluated in comparison to the current algorithms for secure node selection. The simulation results verified the superiority of the proposed algorithm.

In a photoinjector electron source, the initial transverse electron bunch properties are determined by the spatial properties of the laser beam on the photocathode. Spatial shaping of the laser is commonly achieved by relay imaging an illuminated circular mask onto the photocathode. However, the Gibbs phenomenon shows that recreating the sharp edge and discontinuity of the cut profile at the mask on the cathode is not possible with an optical relay of finite aperture. Furthermore, the practical injection of the laser into the photoinjector results in the beam passing through small or asymmetrically positioned apertures. This work uses wavefront propagation to show how the transport apertures cause ripple structures to appear in the transverse laser profile even when effectively the full laser power is transmitted. The impact of these structures on the propagated electron bunch has also been studied with electron bunches of high and low charge density. With high charge density, the ripples in the initial charge distribution rapidly wash-out through space charge effects. However, for bunches with low charge density, the ripples can persist through the bunch transport. Although statistical properties of the electron bunch in the cases studied are not greatly affected, there is the potential for the distorted electron bunch to negatively impact machine performance. Therefore, these effects should be considered in the design phase of accelerators using photoinjectors.

Android malware discovered by ESET Research relays NFC data from victims’ payment cards, via victims’ mobile phones, to the device of a perpetrator waiting at an ATM

The discovery of the NGate malware by ESET Research is another example of how sophisticated Android threats have become

The basics of relays and switches - part one.

Last month, we covered the basics of classifying switches and relays based on poles and throws. Once you learn these, it’s easy to apply switches and relays to create “hard-wired” control logic - part two.

Beloved local automotive repair shop continues serving Lakewood residents with auto repair services after a business and property acquisition by Relay Hill Auto

If a potential relay is malfunctioning, the compressor motor is in danger of not starting, stalling, locking rotor, or even burning out. That is why technicians should understand how to troubleshoot potential relays.

Continuous and rapid cycling is hard on a compressor, but the use of a simple time delay relay can mitigate the risk of compressor failure.

handy reference

Communication systems of electric utilities have become increasingly critical to electric system protection, operation, and maintenance. For fast tripping and clearing of system faults, communication-aided relaying has become a common protection scheme, particularly in line protection. Control centers depend on... Read more

The post Schematics and docs needed for communication systems of substation protective relaying system appeared first on EEP - Electrical Engineering Portal.

In the design of electrical power systems, the ANSI Standard Device Numbers denote what features a protective device supports (such as a relay or circuit breaker). These types of devices protect electrical systems and components from damage when an unwanted... Read more

The post Protection Relay – ANSI Standards appeared first on EEP - Electrical Engineering Portal.

To be honest, expertise in relay systems is fundamental for comprehension and creativity in circuits design. From bi-stable relays that maintain their states without continuous power to step relays facilitating incremental changes, and lockout relays guarding against unauthorized reenergization, each... Read more

The post The analysis of relay control systems: Electrical schematics with latch, step and lockout relays appeared first on EEP - Electrical Engineering Portal.

As you should already know, current transformers are used for metering and relay protection purposes. When we are talking about current transformers used for metering, their performance is of interest during normal loading conditions. Metering transformers may have very significant... Read more

The post Four special connections of current transformers in relay protection applications appeared first on EEP - Electrical Engineering Portal.

The first protection devices based on microprocessors were employed in 1985. The widespread acceptance of numerical technology by the customer and the experiences of the user helped in developing the second generation numerical relays in 1990. Modem power system protection... Read more

The post The facts about numerical relays that every electrical engineer should know appeared first on EEP - Electrical Engineering Portal.

The protection and fault clearance requires great attention. In terms of fault clearance protection, we categorize the relays into main protection relays and backup protection relays. The main protection relay is installed at all primary equipment, and it is essential... Read more

The post The art of fault clearance in transmission systems: The logic of main and backup relays appeared first on EEP - Electrical Engineering Portal.

Let’s discuss capacitor banks, but this time, not the basics. Let’s study the double-star capacitor bank configuration and protective techniques used in the substations. How important is to choose the right current transformer ratio, calculate rated and maximum overload currents,... Read more

The post Capacitor banks in substations: Schemes, relay settings, and protective measures appeared first on EEP - Electrical Engineering Portal.

Modification to SSE reason identifier codes to support voice band data and text relay

Procedures for the end-to-end connection of analogue PSTN text telephones over an IP network utilizing text relay

Global Relay's AI-enabled voice-to-text transcription enables recordkeeping and surveillance.

Project Description:We are seeking a skilled PCB designer for a project involving the design and layout of a PCB that will incorporate Solid-State Relays (SSRs) for AC and DC voltage control. This board will not include any FPGA components or software; it will strictly focus on SSR relays for machine operations.Project Scope:Design a PCB containing SSRs, intended as part of an ongoing machine project.Collaborate with an internal team working on an existing machine that currently operates with...

The legendary sprinter made it known how he felt.

On May 3, the Bermuda Pacers Track Club organized the 15th Annual Schools Relay Classic at the Flora Duffy South Field Stadium, featuring many of the island’s top young runners. You can view photos below and the full results here. Related Stories Photos: National Track & Field Championships Photos & Results: World Athletics Day Meet […]

to wire a relay for headlights

The 12th Annual MORE/FITNESS/SHAPE Women�s Half-Marathon on April 19, 2015 in New York�s Central Park

Behind the scenes with Elizabeth Goodman Artis, Natalie Morales, Danielle Brooks, Padma Lakshmi and Sara Bareilles at the 2016 MORE/SHAPE Women�s Half-Marathon in Central Park on April 17.

When you see a product you like on Twitter Stripe wants you to be able to select it, see what other colours and styles are available, then buy it -- all the while staying just a couple of clicks away from your feed. With card and shipping details saved on your phone or within the app you'll never have to go through multiple "pay now" screens again. Subscribe to WIRED ►► http://po.st/SubscribeWired This is Relay and it allows apps to handle anonymous payment information, the latest part of Stripe's plan to create a mobile space for retail. Retailers currently using the technology include Warby Parker, Best Buy and Adidas. Currently, less than five percent of all transactions take place online, and only 15 percent of those go through mobile, James Allgrove, head of UK growth at e-commerce business Stripe, told WIRED Retail. That's in spite of 60 percent of all browsing taking place on mobile devices. READ MORE: http://wired.uk/UepWbA WIRED Retail is our annual exploration of the ever-changing world of commerce, featuring leading technologists, entrepreneurs and creatives innovating in sectors as diverse as robotics, virtual reality and the future of home delivery. For all our coverage from the event, head over to our WIRED Retail hub. http://www.wired.co.uk/wired-retail-2015 CONNECT WITH WIRED Web: http://po.st/VideoWired Twitter: http://po.st/TwitterWired Facebook: http://po.st/FacebookWired Google+: http://po.st/GoogleWired Instagram: http://po.st/InstagramWired Magazine: http://po.st/MagazineWired Newsletter: http://po.st/NewslettersWired ABOUT WIRED WIRED brings you the future as it happens - the people, the trends, the big ideas that will change our lives. An award-winning printed monthly and online publication. WIRED is an agenda-setting magazine offering brain food on a wide range of topics, from science, technology and business to pop-culture and politics. Relay wants your phone to be a wallet and Twitter a shop | WIRED Retail | WIRED https://www.youtube.com/wireduk

The move by AFI and SAI to send the athletes on a month-long camp helped them acclimatise and bounce back to qualify for the 2024 Olympics

The timing puts India in the 21st place in the Road to Paris list of World Athletics while the aim was to be either in the 15th or 16th spot

Indian mixed 4x400 relay team set a national record while winning the gold medal but missed the target of entering the Paris Olympics qualification bracket.

The Indian campaign in athletics ended with the exit of the relay teams.

Article By: Enoch Kaulaity

The Haskell  Women's indoor track and field season got off with a visit up the road earlier this month and competed in the Cavalier Relays on January 16, 2015. A repeat return for the Cavalier Night Relays took place this past Friday the 30th on the Johnson County Community College campus.

The Haskell Track Team competed in the Johnson County College Cavalier Night Relays, Friday the 27th.  Freshman Paul Littlebear (Sapulpa, OK) in just his second meet of the indoor season finished the 60 meter race 8th out of 22 runners.  Littlebear also finished 3rd of 11 sprinters in the 400 meter dash with a time of 24.29. 

Article By: Enoch Kaulaity

The Haskell Men's  indoor track and field season got off with a visit up the road earlier this month and competed in the Cavalier Relays on January 16, 2015, and a repeat return for the Cavalier Night Relays which took place this past Friday, January 30th on the campus of Johnson County Community College.

GM owners with an OnStar-equipped vehicle can earn some extra cash by renting out their autos.

Topics

Multi-pole Power Relay for Contactor Current Range Capable of Carrying and Switching 40 A at 440 VAC(G7Z)

A High-capacity, High-dielectric-strength, Multi-pole Relay Used Like a Contactor(G7J)

Product Information

Compact and Slim Relay Ideal for Temperature Alarms and Monitoring(K8AK-TH)

Ideal for 3-phase Voltage Asymmetry Monitoring for Industrial Facilities and Equipment. 22.5 mm (W). One SPDT output relays(K8AK-PA)

Ideal for Voltage Monitoring for Industrial Facilities and Equipment. Monitor for overcurrents or undercurrents.(K8AK-VS)

Monitor Temperature Rise through Internal Motor Loss(K8AK-TS / PT)

Three-phase Phase-sequence Phase-loss Relay Using Voltage Detection Method. 17.5 mm (W). One SPDT output relays(K8DS-PH)