Left-hand Circular Polarization vs Right- ... - circular polarisation of light

 2024-10-19 21:23:57

Rouge National Park in the eastern GTA is set to grow by hundreds of acres and the federal government is kicking in to help restore that newly added land. David Zura explains.

Memorial Day weekend is often considered to be the kick-start to summer and, for car shoppers looking for the best finance and lease deals, a great opportunity to take advantage of a marketplace finally returning to normalcy.

BEIRUT (AP) — Hezbollah fired about 250 rockets and other projectiles into Israel on Sunday, wounding seven people in one of the militant group's heaviest barrages in months, in response to deadly Israeli...

One man is dead and five others injured in what police say was a "violent" crash involving two vehicles early Sunday morning. Peel police say a van was travelling westbound on Steeles Avenue and was...

TDI image sensor

While the autumn of a given year has routinely marked this changeover, automakers have become increasingly fluid in terms of when one model year supersedes the next. For example, 2025 Honda Pilots and 2025 Toyota Camrys are already arriving at dealerships, meaning the 2024 vehicles could already be a viable option for a discounted purchase.

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“It’s time for car shoppers to dust off their old, pre-pandemic playbooks because automakers are falling back into familiar traps of aging inventory and prevalent discounting,” said Ivan Drury, Edmunds’ director of insights.

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The excitement of six sold-out concerts at the Rogers Centre isn't confined to the Swifties who filled the city with glitter, sparkles, and friendships bracelets, Catalina Gillies reports.

A vehicle’s model year also has an influence on its annual percentage rate, something that can have a big impact on financing and monthly payments. “Nearly 40% of customers who financed a 2023 vehicle in April got less than 4% APR, while the industry average is a hair above 7%,” Drury says.

MONTREAL — Montreal's police chief said he expects more arrests stemming from a Friday anti-NATO protest that turned violent, while one of the protest organizers on Sunday denounced political reaction...

No snow but possibly some rain as Santa Claus comes to town on Sunday. Mostly cloudy with some sunny breaks and the chance of showers with single-digit highs expected.

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Sales data shows the pendulum for automobile sales is swinging back to pre-pandemic normalcy. However, as always, finding the best deals requires smart research and a little legwork.

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Time delay integrationexamples

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While a few 2024 EVs cost less than before, the more typical value pick is still in play: a vehicle that’s showroom fresh but is leftover from the previous model year. It’s another way to save money because a dealer will be keen on selling it to make room for newer inventory. Last month, approximately one in 12 vehicles for sale was a 2023 model, according to inventory listed on Edmunds.

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TORONTO — Joshua Orson sits on the edge of a bed in a bright, clean room, thinking about his journey from addict to health-care worker. The room is part of a new, 36-bed detox space in downtown Toronto...

For more skeptical EV customers, leasing could be an ideal way to see if going electric fits their driving needs because there’s less of a long-term commitment. Edmunds’ sales data shows the average monthly lease price for a 2024 model year EV is down more than 30% compared to last year

Interest rates are high but it’s possible to find automaker financing offers with attractive annual percentage rates. For example, Chevrolet is currently offering 1.9% financing on many of its vehicles, along with bonus cash offers, for well-qualified buyers.

Not everyone can afford big-ticket models, of course. But this $60K-$70K range was the sweet spot of Edmunds’ analysis where shoppers seemingly had the best advantage in negotiating a lower price.

TDI camera principle

This story was provided to The Associated Press by the automotive website Edmunds. Nick Kurczewski is a contributor at Edmunds.

What is TDI? TDI refers to Time Delay Integration, a specialised detector readout mode used for observing a high-speed moving object under low light conditions normally undetectable by classic CCD imaging. With an effect similar to that of a linescan camera, TDI is designed to allow continuous movement of the object past the sensor to produce a continuous video image of a moving, two-dimensional object: a definite advantage over stop-then-start capture of traditional technologies. In the past, certain image-capture deployments traded-off sensitivity in order to capture a fast-moving object. TDI-mode technology preserves sensitivity while not degrading image quality, even given the relative fast movement between the sensor and the objects under image. How does TDI work? Based on the concept of accumulating multiple exposures of the same (moving) object, TDI mode effectively increases the integration time available to collect incident light. The technique senses a change in light pattern and shifts them across the CCD in a manner that is synchronised with the movement of the image, in order to integrate more light from the scene. The number of lines on the sensor corresponds to the increase in sensitivity. For example a 256 line TDI sensor provides 256x more sensitivity than a single linescan camera. Imaging in TDI mode provides dramatically increased responsivity compared to other video scanning methods by permitting much greater scanning speeds in low light, or allows reduced lighting levels (and costs) at conventional speeds and so producing a crisp image.

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Time delay integrationtdi

The manufacturer’s suggested retail price, or MSRP, for certain versions of the 2024 Ford F-150 Lightning, for example, are $2,500 to $5,500 less than before. Or consider the 2024 Nissan Ariya SUV. Nissan dropped its price by up to $6,000 compared to the 2023 model.

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For example, the recent average transaction price of vehicles costing $30,000 to $40,000 was 2.6% less than the MSRP, or about $900 off. But vehicles costing $60,000 to $70,000 were bought at an even bigger discount: 4.4%, or $2,850 off.

Night 5 of 6 sold-out Eras shows has wrapped up and the excitement is not slowing down. As Jazan Grewal reports, some UHN staff and patients were among the tens of thousands in the crowd at Rogers Centre.

You can do research and search online to locate remaining 2023 models and also find out what changed for 2024. If the 2024 model isn’t substantially different, you can pick up what is essentially the same vehicle at a big discount.

“If you’re lucky enough to be in the EV market, leasing an EV is really where customers could stand to benefit,” Drury says. “The combination of MSRP reductions, EVs lingering on dealer lots, and the potential federal tax credit work-around allows the automakers to heavily discount their product.”

Points to note if considering TDI technology TDI requires more care in synchronization and alignment but in general practice these requirements are not difficult to achieve. A TDI sensor can withstand some misalignment (either translational or rotational) without negative effect on image quality and a total misalignment of one pixel or less across the length of a TDI sensor will not affect image quality. In most applications, a 96-stage TDI device can comfortably tolerate a 2-4% velocity mismatch between inspection web and imager. This is not difficult to achieve using a web-mounted encoder to supply a sync signal to the camera, even with webs that change speed and this approach is used in thousands of successful applications. Designed for light-starved applications, TDI typically lacks antiblooming to subdue "glints", and as well, TDI sensors generally use photogates - surface electrodes covering the entire pixel - and while this ensures 100% fill factor, it can attenuate incoming photons in the deep blue region. One camera manufacturer, Teledyne DALSA has produced an anti-blooming device to solve the first problem and has also developed enhanced blue-response TDI sensors to compensate for the latter issue.

Where can TDI technology be used? TDI CCDs are used in applications that require the ability to operate in extreme lighting conditions, that require both high speed and high sensitivity, for example: ** inline monitoring, inspection and guidance ** sorting ** earth observation satellite (for weather observation, for example)

But shoppers need to know where to look to find these deals. Edmunds experts offer their recommendations on how to get the best car, truck and SUV savings this weekend and throughout the summer.

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Dec 20, 2023 — Optical coherence tomography (OCT) is a type of noninvasive imaging test. Ophthalmologists use OCT to create high-resolution, cross ...

CCD camera

More and more electric vehicles are coming to market, but this increase hasn’t perfectly synced with consumer demand. Some automakers are adjusting their pricing downward to compensate. That’s good news if you’re interested in an EV.

How do CCDs work

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A number of more expensive models — particularly aging models that have not had any recent updates — are showing the biggest year-to-year price drops.

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The unseasonable warmth won't last forever. Natasha Ramsahai with when the temperature will drop next week and how low it will go.