Danfoss recently broke ground on the construction of what it has called one of the world’s most energy-efficient supermarkets, which will be filled with the latest and most energy-efficient refrigeration and heating technology.

CO₂ refrigeration, which has gained significant traction in ice arenas and supermarket coolers, is now emerging as a groundbreaking technology revolutionizing the way we cool and heat across industries worldwide.

A federal measure designed to improve IAQ, particularly in schools and child-care facilities, is winning support from HVAC industry trade groups. 

Emerson Climate Technologies has filed a patent application for a simulation model of a commercial ice machine to support development of more efficient equipment that can meet upcoming U.S. Department of Energy (DOE) targets.

The grant will provide state-of-the-art technology and equipment for industrial training programs such as mechatronics, information technology and cybersecurity, HVAC, construction management, welding, and more.

Famous Supply is planning a December 17 ribbon-cutting for its new 354,000-square-foot distribution center in Maple Heights, Ohio.

Supermarkets and grocery stores are facing challenging times as the $1.2 trillion annual sector strives to maintain its relevancy in a sea of change.

Refrigerant regulations are another reason why change is coming, as HCFCs will be phased out by 2020, and given their high global warming potential (GWP), HFCs will likely be phased down in the near future as well. At some point, supermarkets will need to start considering low GWP alternatives such as HFO blends, as well as so-called “future-proof” refrigerants such as ammonia, CO2, or propane.

These Emerson half-day CO₂ transcritical booster supermarket refrigeration courses will take place March 28, 29, and 30 at the Energy Education Center in Irwindale, California.

Much like subcooling, understanding and calculating superheat can be somewhat difficult for newbie technicians.

In collaboration with Tropic Supply, Cooper&Hunter has gifted Daytona State College with six complete HVAC systems, considering the donation as a useful investment in the next generation. The on-campus working stations, which include units from Cooper&Hunter’s modern “Sophia Mini-Split Single Zone Series,” will give students hands-on learning opportunities with technology that is becoming increasingly popular in the U.S.

In supermarkets, where HVAC and refrigeration equipment use 50 to 60 percent of all electricity consumed, new technologies and advanced control strategies have been developed to help boost energy efficiency as well as reduce emissions.

While some contractors are willing to equip technicians with the necessary tools, others require workers to purchase their own, which can be yet another burden for someone just starting out in the field.

Cochrane Supply & Engineering has been distributing Honeywell products since Cochrane was founded. Co-founder Don Cochrane Sr. got his start with Honeywell.

Throughout March, voters will help the staff at Peterman Brothers select four charity partner organizations for 2023.

Ant Wilson of Supabase discusses building an open source alternative to Firebase with PostgreSQL. SE Radio host Jeremy Jung spoke with Wilson about how Supabase compares to Firebase, building an API layer with postgREST, authentication using GoTrue...

Dan Lorenc, CEO of Chainguard, a software supply chain security company, joins SE Radio editor Robert Blumen to talk about software supply chain attacks. They start with a review of software supply chain basics; how outputs become inputs of someone...

Open source developers Jordan Harband and Donald Fischer join host Robert Blumen for a conversation about securing the software supply chain, especially open source. They start by reviewing supply chain security concepts, particularly as related to open..

Charlie Jones, Director of Product Management at ReversingLabs and subject matter expert in supply chain security, joins host Priyanka Raghavan to discuss tackling third-party software risks. They begin by defining different types of third-party software risks and then take a deep dive into case studies where third-party components and software have had cascading effects on downstream systems. They consider some frameworks for secure software development that can be used to evaluate third-party software and components – both as a publisher or as a consumer – and end by discussing laws and regulations with final advise from Charlie on how enterprises can tackle third-party software risks. Brought to you by IEEE Computer Society and IEEE Software magazine. This episode is sponsored by WorkOS.

Palit's RTX 2080 Super Gaming Pro OC is a new variant with a triple-slot, triple-fan cooler, to replace their dual-fan designs. It delivers solid temperatures and noise levels. At $720, the card is priced very reasonably, yet includes a factory overclock, idle-fan-stop, and backplate.... [PCSTATS]

AMD just announced today a design win in conjunction with the Lawrence Livermore National Laboratory (LLNL) and Hewlett-Packard Enterprise (HPE), win which it will be providing the hardware powering the El Capitan exascale-class supercomputer. What caught our eye about this announcement was not the compute performance -- which will be enormous ... [PCSTATS]

Want to know the kind of performance you will see at 1440p on an NVIDIA GeForce RTX 2060 SUPER FE when it is overclocked? Check out our gaming review.... [PCSTATS]

The Galax RTX 2070 Super HOF 10 Year comes with a large overclock on both GPU and memory, it's actually the fastest RTX 2070 we ever tested, almost matching RTX 2080. Thanks to a large power limit increase and 16 Gbps memory chips from Samsung, manual overclocking works great, too.... [PCSTATS]

The RSS feeds of the RSS-Public and RSS-Board mailing lists are no longer available. Yahoo Groups used to offer feeds for each of its public lists, but Yahoo dropped support last year. A member of the service's product team said the feature was retired in July 2013.

To read the lists and subscribe to receive them in email, visit the Yahoo Groups pages for RSS-Public and RSS-Board.

We may move the lists to Google Groups, which does offer RSS feeds for each group.

One of the biggest challenges for a software developer implementing the RSS 2.0 specification is the issue of enclosures in a feed item. The specification is infamously unclear on whether an item allows one enclosure or multiple enclosures.

The RSS Advisory Board worked on the RSS Best Practices Profile for nearly two years, investigating a lot of RSS readers and feed producers to see how they handled issues like this. We ultimately made the following recommendation for enclosure:

Support for the enclosure element in RSS software varies significantly because of disagreement over whether the specification permits more than one enclosure per item. Although the author intended to permit no more than one enclosure in each item, this limit is not explicit in the specification.

Blogware, Movable Type and WordPress enable publishers to include multiple enclosures in each item of their RSS documents. This works successfully in some aggregators, including BottomFeeder, FeederReader, NewsGator and Safari.

Other software does not support multiple enclosures, including Bloglines, FeedDemon, Google Reader and Microsoft Internet Explorer 7. The first enclosure is downloaded automatically, an aspect of enclosure support relied on in podcasting, and the additional enclosures are either ignored or must be requested manually.

For best support in the widest number of aggregators, an item SHOULD NOT contain more than one enclosure.

Because the profile was completed in 2007, it would be useful to see how current software handles RSS enclosures to evaluate whether any recommendations should be reconsidered. To start this effort the current WordPress was tested, since that massively successful platform publishes 60 million RSS feeds. WordPress enables audio files to be added to a blog post using the Audio icon in the block editor:

When three audio files were added to a blog post in WordPress, the item in the RSS feed contained three enclosure elements:

Follow this blog for more updates on enclosure usage in feeds and feed readers.

As you probably guessed, we have an RSS feed.

An effort is underway to examine how feed publishers and feed consumers are handling the lack of clarity in the RSS 2.0 specification about whether an item can contain more than one enclosure. The RSS Best Practices Profile recommends that a feed item should contain no more than one enclosure "for best support in the widest number of aggregators," advice worth testing against current usage.

The artisanal small-batch blogging service Micro.blog is a platform for sharing short posts like Twitter, but in a way designed to be less viral, more low key and less prone to provocation, attention seeking and clout chasing. There are no follower counts, public likes or trending topics. Founder Manton Reese explained why in his book Indie Microblogging:

Big social networks like Instagram are designed to amplify accounts that gain traction, whether they are fake or not.

Micro.blog limits search and avoids public likes and reposts so that the snowball starts small and stays small. Instead of going viral and becoming a major problem, fake accounts can be spotted early and shut down if necessary.

Since being funded by a Kickstarter campaign in 2017 that hit its goal in one day, Micro.blog has attracted a dedicated following. One of the options available to premium subscribers is to host a podcast. An audio button appears below the post editing window to choose a media file.

Micro.blog sites have a primary RSS feed and a separate podcast feed. The latter contains enclosure elements. Because the Micro.blog editing window does not allow more than one podcast to be added to a post, the RSS item for a post contains only one enclosure:

<item>
  <title>RSS Enclosure Test</title>
  <link>https://rcade.micro.blog/2023/07/02/rss-enclosure-test.html</link>
  <pubDate>Sun, 02 Jul 2023 21:39:52 -0400</pubDate>
  <guid isPermaLink="true">https://rcade.micro.blog/2023/07/02/rss-enclosure-test.html</guid>
  <description><p>I’m trying out Micro.blog’s support for podcasting to see how it handles enclosures in RSS feeds. This MP3 was released by David Byrne under Creative Commons Sampling Plus:</p> <p><a href="https://creativecommons.org/licenses/sampling+/1.0/.">creativecommons.org/licenses/…</a></p> <audio controls="controls" src="https://cdn.uploads.micro.blog/67258/2023/my-fair-lady-david-byrne.mp3" preload="metadata"> </description>
  <itunes:subtitle><p>I’m trying out Micro.blog’s support for podcasting to see how it handles enclosures in RSS feeds. This MP3 was released by David Byrne under Creative Commons Sampling Plus:</p> <p><a href="https://creativecommons.org/licenses/sampling+/1.0/.">creativecommons.org/licenses/…</a></p> <audio controls="controls" src="https://cdn.uploads.micro.blog/67258/2023/my-fair-lady-david-byrne.mp3" preload="metadata"> </itunes:subtitle>
  <itunes:summary><p>I’m trying out Micro.blog’s support for podcasting to see how it handles enclosures in RSS feeds. This MP3 was released by David Byrne under Creative Commons Sampling Plus:</p> <p><a href="https://creativecommons.org/licenses/sampling+/1.0/.">creativecommons.org/licenses/…</a></p> <audio controls="controls" src="https://cdn.uploads.micro.blog/67258/2023/my-fair-lady-david-byrne.mp3" preload="metadata"> </itunes:summary>
  <enclosure url="https://rcade.micro.blog/uploads/2023/my-fair-lady-david-byrne.mp3" type="audio/mpeg" length="3394751"/>  <itunes:duration>212</itunes:duration>
</item>

Micro.blog's commitment to being small extends to podcasts, where its Wavelength app for iPhone can be used to record, edit and publish a short-form podcast.

Marjorie Kelly's new book critiques the U.S. economy's embrace of "wealth supremacy," and explores alternate models of democratic economies.

Transformers are not perfect. Transients and noise (radio-frequency and low-level spikes) normally pass through transformers, not only by way of the magnetic lines of flux between the primary and the secondary windings but through resistive and capacitive paths between the... Read more

The post The magic that isolation transformer uses to suppress transients and noise appeared first on EEP - Electrical Engineering Portal.

This technical article discusses criteria and requirements for designing protection systems for busbars in HV/EHV networks. One of the most critical requirements is reliable busbar relay protection to assure power system integrity during fault conditions. This requirement is further emphasized because... Read more

The post Design issues in HV busbar protection systems (substation topology and DC power supply) appeared first on EEP - Electrical Engineering Portal.

First, let’s say a word or two about the essentials of power distribution systems for our young electrical engineers. An electric distribution system, or distribution plant as it is sometimes called, is all of that part of an electric power... Read more

The post The loop electrical distribution system used to supply bulk loads (industrial plants and buildings) appeared first on EEP - Electrical Engineering Portal.

In modern electrical power systems, ensuring a reliable and continuous supply of electricity is critical, particularly in facilities where downtime can result in significant operational disruptions and financial losses. Low voltage automatic transfer schemes at substations play a vital role... Read more

The post ATS Schematics and Logic Analysis for a Substation 415V AC Auxiliary Supply Panel appeared first on EEP - Electrical Engineering Portal.

Capacitors store electric charge. Because the charge is stored physically, with no chemical or phase changes taking place, the process is highly reversible and the discharge-charge cycle can be repeated over and over again, virtually without limit. Electrochemical capacitors (ECs) variously... Read more

The post Super Capacitors – Different Than Others (part 1) appeared first on EEP - Electrical Engineering Portal.

Continued from first part: Super Capacitors – Different Then Others (part 1) Equivalent circuit How to measure the capacitance? Charge Method Discharge Method Measure Capacitance Capacitor types Advantages of the supercapacitors Super capacitors can be illustrated similarly to conventional film,... Read more

The post Super Capacitors – Different Than Others (part 2) appeared first on EEP - Electrical Engineering Portal.

Voltage dips and transients are usually blamed on the supplier, but this is often unfair. There are many potential on-site causes; for example, starting of heavy loads may cause voltage dips and switching of inductive loads will generate transients. Let’s... Read more

The post Should We Blame Supplier For Voltage Dips and Transients? appeared first on EEP - Electrical Engineering Portal.

Lighting is defined as emergency lighting when it is intended for operation when standard lighting fails. Emergency lighting must be powered by an independent energy source (typically a central power supply system) and is classified by the UNI EN 1838 standard... Read more

The post Emergency Lighting Power Supply in Data Center appeared first on EEP - Electrical Engineering Portal.

The first choice for service and distribution voltage is almost always 480 volts. Why is that? Well, it’s because it’s traditional, it has a safe design and specifications are already written around 480 V. UPS and backup aggregate equipment are... Read more

The post How to design the power supply for data centres and airports while megawatts of loads rise fast appeared first on EEP - Electrical Engineering Portal.

It is time again for KnowHow’s monthly Case Study! This month we learn how to equip workers with technology that gives them superpowers.

Jon-Don has launched a temporary Hurricane Support Center in Sarasota, FL to provide essential disaster restoration equipment, supplies, and expertise to contractors aiding in the recovery from Hurricanes Helene and Milton.

In this episode of “TradeTalks: Unlocking The Experience”, R&R Publisher Mike Balzano talks with the Owners of SuperTech University and the creators and hosts of the Blue Collar Podcast, Eric Sprague and Larry Wilberton!

El candidato no respondió a los intentos de contactarlo.

The post Guía electoral: El concejal actual es el único candidato para el distrito de Stanardsville del consejo de supervisores del condado de Greene appeared first on Charlottesville Tomorrow.

With a population of just 1,400, the new Councilors say it could take years to raise the money for some of these projects.

The post Gordonsville’s two new town councilors want to fix sidewalks, build a park and address issues with the town’s water supply appeared first on Charlottesville Tomorrow.

A national report on local news calls Charlottesville Tomorrow one of 12 "bright spots" in a beleaguered ecosystem.

The post Our supporters have built up a ‘bright spot’ in local news appeared first on Charlottesville Tomorrow.

The PA House Health Committee today unanimously passed Senate Bill 500, which calls for Medicaid coverage of human donor milk. The milk is vitally important for many newborns suffering from health issues. The PCC supports this issue. It has already passed the Senate and just needs approval by the full House. Here are the Facebook and X links for the two stories we ran. https://fb.watch/nLLsZciiLe/?mibextid=cr9u03 https://fb.watch/nLLsZciiLe/?mibextid=cr9u03 https://x.com/pacatholic/status/1714669965268193289?s=46&t=BhvQl7L4iZmDeA-ftim4Og https://x.com/pacatholic/status/1714667221551587757?s=46&t=BhvQl7L4iZmDeA-ftim4Og    

From the USCCB – June 4, 2018 – Today, the U.S. Supreme Court decided the case of Masterpiece Cakeshop v. Colorado Civil Rights Commission. The case involves a Christian baker named Jack Phillips who declined in 2012 to create a custom wedding cake for a same-sex ceremony. State officials sought to compel Phillips to create such cakes under Colorado’s public accommodations law. The Supreme Court ruled 7-2 in favor of Phillips under the Free Exercise Clause of the First Amendment to the U.S. Constitution. Archbishop Joseph E. Kurtz of Louisville, Chairman of the Committee for Religious Liberty, Archbishop Charles J. Chaput, O.F.M. Cap., of Philadelphia, Chairman of the Committee on Laity, Marriage, Family Life and Youth, and Bishop James D. Conley of Lincoln, Chairman of the Subcommittee for the Promotion and Defense of Marriage of the U.S. Conference of Catholic Bishops (USCCB), issued the following joint statement: “Today’s decision confirms that people of faith should not suffer discrimination on account of their deeply held religious beliefs, but instead should be respected by government officials. This extends to creative professionals, such as Jack Phillips, who seek to serve the Lord in every aspect of their daily lives. In a pluralistic society like ours, true tolerance allows people with different viewpoints to be free to live out their beliefs, even if those beliefs are unpopular with the government.” The USCCB filed an amicus curiae brief supporting Masterpiece Cakeshop, which can be found here: http://www.usccb.org/about/general-counsel/amicus-briefs/upload/16-111-tsac-USCCB.pdf.        

  The Pennsylvania Catholic Conference applauds the Supreme Court’s decisions in Little Sisters of the Poor v. Commonwealth of Pennsylvania and in Our Lady of Guadalupe School v. Morrissey-Berru and St. James Catholic School v. Biel. In both cases, the Court reaffirmed the religious liberties guaranteed in the United States’ Constitution. “These are incredibly important rulings for so many groups across the country,” said Eric Failing, the Executive Director of the PCC. “They take a big stand for religious liberty as a First Amendment freedom, which is continually being threatened. We are happy the Court has clearly recognized the importance of religious liberty to our nation.”

On Tuesday, 9 July the full House Appropriations Committee marked up their Commerce-Justice-Science, Interior and Environment, and Energy and Water spending bills for fiscal year (FY) 2025. These bills collectively set the spending amounts for U.S. federal science agencies, including NASA, NOAA, NSF, USGS, EPA, the Department of Energy. Under the Fiscal Responsibility Act, Congress established spending caps for fiscal years 2024 and 2025. The Act allows only a 1% …

The post FY25 Appropriations overview part 1: House spending numbers mark weak support for science appeared first on The Bridge: Connecting Science and Policy.

In this Bridge post, continued from our FY25 Appropriations Overview Part 1 blog, we’ll cover the House’s Interior-Environment, Energy-Water, and Labor-Health and Human Services (HHS) spending bills for fiscal year (FY) 2025—detailing relevant funding levels and sharing committee report highlights that impact the Earth and space sciences.   House Interior-Environment Appropriations bill and accompanying report.   United States Geological Survey (USGS) FY2024 President’s Budget Request FY2025 AGU Request FY2025 House …

The post FY25 Appropriations overview part 2: House spending numbers mark weak support for science appeared first on The Bridge: Connecting Science and Policy.

The two companies will continue to use DS Smith Circular Design Metrics when co-creating new packaging innovations.

The same government that destroyed Puerto Rico’s economy and the domestic pharmaceutical industry by repealing Section 936 in 2006 is now going to tell you what heroes they are by reviving that industry. It might be easier said than done.

Functionality, sustainability and shelf appeal will continue to be key factors in the choice of packaging in this market, with formats made from plastic continuing to edge out other materials in most cases.