In an interview, when asked professional rider: Craig Griffin (former USA Cycling coach) how to maximize pedaling efficiency, he said the following words.
Gums and hydrocolloids are a diverse collection of polysaccharides that create gel-like formations when in contact with moisture. They are extremely versatile, improving texture, mouthfeel, and physical appearance in foods and beverages. Gums can be used to increase viscosity levels or benefit flow. They are especially prized for increasing stability in an ingredient matrix.
we introduce a novel approach for a real-time dual-frequency feedback system, which has been firstly used at the hard X-ray nanoprobe beamline of SSRF. The BiBEST can then efficiently stabilize X-ray beam position and stability in parallel, making use of different optical systems in the beamline.
Overall cigar consumption has increased since the 1990s, but there is limited research on “premium” cigars. A new report examines the short- and long-term health effects of premium cigars, who is using them and how often, and marketing practices and consumer perceptions.
The radio frequency spectrum is a natural resource that underpins all wireless activity. A new report assesses the likelihood of harmful interference from operating a radio network near GPS frequency bands, and considers approaches for evaluating concerns.
After the very successful introduction of the air-cooled Bantam-Series Post-Baking dryers two years ago, RFC is now offering the air-cooled design in a more powerful two-zone design
With all baby boomers at least 65 or older by 2030, beverage-makers should consider what this demographic needs as their shopping habits evolve.
Frequency increases modestly but consistently as temperatures climb, according to a study by the National Council on Compensation Insurance. NCCI said that starting around 50 degrees, there is about a 1%…
The enclosed drive configurations allows standardization on the PowerXL platform regardless of horsepower and harmonic mitigation requirements.
Now available up to 40 hp, this product has a smartphone interface and comes in stand-alone, disconnect, and bypass versions.
In this white paper, you will find some real-world definitions of many of the confusing terms thrown around in VFD manuals and technical articles.
Selecting a VFD that features remote startup can decrease the number of individuals needed onsite and provide valuable safety benefits.
AC drives are an essential part of the HVAC marketplace, and the growth of the market looks to be exceptional over the next few years. According to MarketsandMarkets, the market is expected to grow from an estimated $15.72 billion in 2016 to $22.07 billion by 2021.
New Lesson Plans Entry: 'Adverbs of frequency mastermind' has just been added to the Lesson Plans area of UsingEnglish.com.
New Lesson Plans Entry: 'Verbs and adverbs of frequency bluff' has just been added to the Lesson Plans area of UsingEnglish.com.
This article addresses the Variable Frequency Drive (VFD) concept in several aspects that matter the most in selecting the proper VFD for applications. One of the important factors is the control type required for a given application since it is... Read more
The post Guidelines for selecting the proper Variable Frequency Drive (VFD) for motor applications appeared first on EEP - Electrical Engineering Portal.
Proper analysis of the VFD’s power and control circuit diagrams is essential for successful troubleshooting. But before starting any analysis, you must know how your system connected through VFD works and how it breathes. You must also know all components... Read more
The post Inside Variable Frequency Drive (VFD) Panel: Configuration, Schematics and Troubleshooting appeared first on EEP - Electrical Engineering Portal.
Radiofrequency electromagnetic field (RF-EMF) exposure levels from mobile and portable devices during different conditions of use
ITU-T K.91 - Supplement on radiofrequency exposure evaluation around underground base stations
Guidance for assessment, evaluation and monitoring of human exposure to radio frequency electromagnetic fields
EMC requirements for telecommunication network equipment in the frequency range 1 GHz-40 GHz
Guidance for assessment, evaluation and monitoring of human exposure to radio frequency electromagnetic fields
Low and high frequency EMC mitigation techniques for telecommunication installations and systems - Basic EMC Recommendation
ESTR-NUI - Radio frequency level-based single number indicator for mobile network usefulness for a given range of applications
On an earlier occasion, Shaan had taken a dig at new-age singers highlighting how they have shifted to "minimalistic" songs
Hi *,
I am simulating a 32kHz high Q crystal oscillator with a pulse shaping circuit. I set up a PSS analysis using the Shooting Newton engine. I set a beat frequency of 32k and used the crystal output and ground as reference nodes. After the initial transient the amplitude growth was already pretty much settled such that the shooting iterations could continue the job.
My problem is: In 5...10% of my PVT runs the simulator detects a frequency divider in the initial transient simulation. The output log says:
Frequency divided by 3 at node <xxx>
The Estimated oscillating frequency from Tstab Tran is = 11.0193 kHz .
However, the mentioned node is only part of the control logic and is always constant (but it has some ripples and glitches which are all less than 30uV). These glitches spoil my fundamental frequency (11kHz instead of 32kHz). Sometimes the simulator detects a frequency division by 2 or 3 and the mentioned node <xxx> is different depending on PVT - but the node is always a genuine high or low signal inside my control logic.
How can I tell the simulator that there is no frequency divider and it should only observe the given node pair in the PSS analysis setup to estimate the fundamental frequency? I have tried the following workarounds but none of them worked reliably:
- extended/reduced the initial transient simulation time
- decreased accuracy
- preset override with Euler integration method for the initial transient to damp glitches
- tried different initial conditions
- specified various oscillator nodes in the analysis setup form
By the way, I am using Spectre X (version 21.1.0.389.ISR8) with CX accuracy.
Thanks for your support and best regards
Stephan
Title: Want to Maintain Muscle? Frequency of Workouts Is Key
Category: Health News
Created: 8/22/2022 12:00:00 AM
Last Editorial Review: 8/22/2022 12:00:00 AM
Though unrecognised, community radio is playing a key role in spreading awareness about Covid-19
The PGA Tour's Memorial Tournament will use radio frequency identification chips in spectator badges to ensure fans maintain social distance.
Fire frequency is changing globally, yet it is unclear how such changes affect soil carbon and nitrogen storage, and, in turn, impact on ecosystem productivity. A study was conducted to evaluate how increased fire frequency drives changes in soil carbon and nitrogen over multiple decades. Data from 48 sites that have experienced altered fire frequency were analysed, spanning up to 65 years. The meta-analysis found that frequently burned sites experienced a significant decline in surface soil carbon and nitrogen over time — on average having 36% less carbon and 38% less nitrogen, after 64 years, than sites that were protected from fire. The researchers also observed comparable changes in an independent field dataset and in dynamic model simulations of global vegetation. The results indicate that future changes in fire frequency may lead to long-term changes in the amount of carbon and nitrogen stored in soils, especially in savanna grasslands and broadleaf forests. This has implications for the global carbon cycle and for ecosystem productivity and should, therefore, be considered in the design and implementation of relevant policy instruments.
Human water consumption has increased the frequency and intensity of periods of abnormally low flow in streams, new research suggests. The frequency of these events increased by 30% globally, largely due to use of water for irrigation, the researchers conclude.
Researchers suspect it could be in reaction to melting sea ice as well as human noise pollution.
iHEARTMEDIA Urban WRDG (96.7 THE BEAT)/ATLANTA has made a move up the dial to the 105.3 signal of WBZY. 105.3 THE BEAT replaces the temporary simulcast of Regional Mexican WRDA … more