Volunteering a total of 244 hours of work, Arista’s employees put their skills and passion towards a great cause.

HVAC contractors can incorporate a variety of best practices to ensure fleet vehicles are kept running as much as possible.

This product combines field leak detection reliability with cloud hunting mode, which helps the operator to find the area highest in concentration and then switch to pinpoint mode to quickly find the leak.

Portable cooling products used to be considered “temporary” solutions, but consumers are now looking to portables to solve more of their residential and commercial needs.

Portable cooling systems work well as temporary solutions and can also serve as long-term options for unconditioned spaces like factories and warehouses.

Increased cooling capacities, remote monitoring technology, and the need for backup units are all part of the mix in the portable a/c market, experts say.

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Since they don’t have to stay in one place, portable cooling units have been known to show up in some pretty unique places. Here’s a closer look at how portable units are serving in some outside-the-box applications.

The benefits of portables, including speedy implementation, reduced downtime, and cost-effectiveness, are continuing to gain recognition from end users. And, as end users experience these benefits and the resulting uptime, industry experts expect the portable market to continue to heat up.

The Pelican™ case housing provides a watertight, crushproof, dust-proof enclosure with heavy-duty deflector ribs for extra protection from shocks and impacts.

Here in the Santa Fe, New Mexico, area — and all across the nation, it seems — everyone wants to be “green.”

How many of standard HVAC sales include add-ons like a humidifier, air cleaner, HRV/ERV, UV lights, or zoning?

This Episode is a round table discussion about Ultra-Large Scale Systems. In 2006, a number of authors (among them our guests Linda Northrop, Doug Schmidt, Kevin Sullivan, and Gregor Kiczales) have produced a report that addressed the following question: Given the issues with today's software engineering, how can we build the systems of the future that are likely to have billions of lines of code? In this episode, our guests discuss many of the issues that arise from this kind of system and provide an overview of the research areas that should be investigated in order to tackle the challenge. If you want to get more detailed information, you can read the ULS Report (PDF).

This is a roundtable discussion on model-driven software develoment and product line engineering. It was recorded at the Model-Driven Development and Product Lines: Synergies and Experience conference in October 2006 in Leipzig. The panelists are:

• Axel Uhl, SAP
• Danilo Beuche, Pure Systems
• Juha Pekka Tolvanen, MetaCase
• Tom Stahl, b+m
• Ruediger Schilling, Delta Software Technology

In this espisode we take a closer look at relational database systems and the concepts behind them. We start by discussing the relational paradigm, its concepts and ramifications, and go on to architectural aspects.

Recording Venue: Skype Guest: Martin Fowler and Pramod Sadalage In this episode, we talk with Pramod Sadalage and Martin Fowler about database evolution and agile database development. We discuss the basic challenges for working with a database in an agile development culture and how to include database design and most of all, database evolution, in […]

Recording Venue: Skype Guest: Michael Hunger Michael Hunger of Neo Technology, and a developer on the Neo4J database, joins Robert to discuss graph databases. Graph databases fall within the larger category of NoSQL databases but they are not primarily a solution to problems of scale. They differentiate themselves from RDBMS in offering a data model built […]

Recording Venue: Skype Guest: Michael Stonebraker Dr. Michael Stonebraker, one of the leading researchers and technology entrepreneurs in the database space, joins Robert for a discussion of database architecture and the emerging NewSQL family of databases. Dr. Stonebraker opens with his take on how the database market is segmented around a small number of use […]

Max Neunhoffer of ArangoDB discusses about multi-model databases in general, and open source ArangoDB, in specific, with show host Nishant Suneja. The show discussion covers motivation behind deploying a multi-model database in an enterprise setting, and deep dives into ArangoDB internals.

Peter Zaitsev explains: avoiding vendor lock-in, judging what databases are bad at, why not to copy the big players, when to "go with the crowd", when to use cloud services vs. running your own infrastructure, and the role of containerization.

Howard Chu, CTO of Symas Corp and chief architect of the OpenLDAP Project, discusses the key technical features of the Lightning Memory-mapped Database (LMDB) that make it one of the fastest, most efficient and safest embedded data stores in the world.

Alex Petrov, author of Database Internals explains the ins and outs of database storage engines. What are they? How do they differ? What problems do they solve? Host Adam Gordon Bell spoke with Alex about these questions as well as how information...

Michael L. Perry discusses his recently published book, The Art of Immutable Architecture, distinguishing immutable architecture from other approaches and, using familiar examples such as git and blockchain, addresses some possible misunderstandings...

Thomas Richter is the founder of Swarm64, a Postgres extension company designed to boost performance of your Postgres instance. This episode examines the internals of Postgres, performance considerations, and relational database types.

Audrey Lawrence of Amazon discusses Timeseries Databases and their new database offering Amazon Timestream. Philip Winston spoke with Lawrence about data modeling, ingestion, queries, performance, life-cycle management, hot data vs. cold data...

Yingjun Wu, founder of RisingWave Labs and previously a software engineer at Amazon Web Services and researcher at IBM Almaden Research Center, speaks with SE Radio host Brijesh Ammanath about streaming databases. After considering the benefits and unique challenges, they delve into the architecture and design patterns of streaming databases, as well as the evolution and security considerations. Yingjun also talks about the future of streaming databases, including the potential impact that Amazon S3 Express One Zone will have on the streaming landscape, and how the unified batch and streaming might evolve in the database world. Brought to you by IEEE Computer Society and IEEE Software magazine.

Orico surprises with its GV100 1TB portable NVMe SSD. Join us as we take a look at this new drive and what it's all about."... [PCSTATS]

The ADATA SE800 is an NVMe based external SSD, which means it offers much better performance than earlier external storage. In our testing we saw speeds up to 1 GB/s, that, paired with 1 TB capacity on the SE800 make it an excellent choice if you want to move a lot of data around.... [PCSTATS]

External SSDs are the future when it comes to moving and storing large amounts of data. The Lexar SL100 Pro offers amazing speed and durability in sizes from 500GB up to 1TB.... [PCSTATS]

Facing the ongoing impacts of pollution and derailments, activists in East Palestine, Ohio, and Baltimore are teaming up to pursue justice for their communities.

New Lesson Plans Entry: 'Countable and uncountable foods happy families card game' has just been added to the Lesson Plans area of UsingEnglish.com.

Circuit breakers (CBs) do interrupt fault currents and close onto faults. Besides, they could be used as isolation devices like disconnectors. The CBs manufacturers’ brochures and standards provide extensive data to select and assess the CBs performance, but designers must... Read more

The post MV/HV switchgear (circuit breaker) switching capability and suitability for specific applications appeared first on EEP - Electrical Engineering Portal.

This technical article discusses the essentials of transformer differential protection and restricted earth fault protection schemes, contrasting the two and elaborating on why the latter is necessary. Furthermore, it reveals the outcomes of stability tests performed on a 502 MVA... Read more

The post Mastering stability test of power transformer: Differential and Restricted Earth Fault (REF) protection appeared first on EEP - Electrical Engineering Portal.

The countries of the European Economic Area (EEA) have agreed on common minimum regulatory requirements in order to ensure the free movement of products within the EEA. The CE marking indicates that the product works in conformity with the directives... Read more

The post EN61800-3 (IEC1800-3) – Adjustable speed electrical power drive systems appeared first on EEP - Electrical Engineering Portal.

This article will analyze a real example of an electrical switchboard for a potable water well pump, containing a soft starter as one of the major components. Besides the explanation of the wiring diagram and working logic, some technical problems... Read more

The post Soft starter for potable water well pump (wiring diagram, troubleshooting example) appeared first on EEP - Electrical Engineering Portal.

Since the subject of this article is somewhat not-that-easy to understand, I suggest starting with the basics of the synchronous motor. In the synchronous motor, the basic magnetic field is obtained by direct current excitation rather than through the air... Read more

The post The art of achieving synchronous motor transient stability (especially in weak grids) appeared first on EEP - Electrical Engineering Portal.

The newest addition to KEEN Utility’s lineup, the San Jose 90° work boot, is designed for stability on ladders, scaffolding, and slick surfaces. With aluminum safety toes, a KEEN.DRY waterproof membrane, and air-infused cushioning, this updated style provides lightweight protection and slip resistance.

PuroClean has been named one of the most profitable franchises of 2024 by Franchise Business Review, recognized for its strong financial performance and high franchisee satisfaction.

Epson has upgraded its EqiqVision Mini portable lifestyle projector series with the EF22 and EF21, two new laser models featuring advanced setup features and the Google TV streaming platform.

10 Most Popular Portable Projectors

ProjectorCentral's Rob Sabin installs and demonstrates Elite ProAV's huge 120-inch motorized ALR screen for UST projectors.

From filling to sterilizing, flexible packaging must be handled differently than rigid containers.

Innovations in how compostable packaging is made, along with new technology for composting, are among the forces working to increase the use of this type of packaging.

Lightweight, compact, and heat-resistant retort pouches are ideal for preserving food products like baby food, ready-to-eat meals, and pet food through retort sterilization, ensuring longer shelf lives. However, there are limited recyclable options for retort pouches in the market.

The reuse and refill tablets can help reduce plastic bottle waste. 

Labeling solution speaks to expected requirements of the Packaging and Packaging Waste Directive (PPWR) that is being created by the EU.

The solution integrates Eastman’s biobased and compostable Solus performance additives with BioPBS polymer to form a thin coating on UPM’s compostable and recyclable barrier base papers.

The International Classification of adult underweight, overweight and obesity according to BMI.