Battery life has been extremely good, we feel like we say this about every single Xiaomi phone we've long-term reviewed in the past few years. But it's true. We never ended a day having needed to charge midway through for a quick top-up. Even with our rather heavy use, it has always lasted us through one of our 12-16 hour days off the charger. That said, we couldn't quite squeeze two days of use from it either. Off the top of our heads, we'd call this a 1.25 day phone, or 1.4 at most.
The Acer K11 Projector ($379 list) is highly portable, and can run presentations from a computer or off a USB thumb drive or SD card. At 200 rated lumens, this palmtop data projector is brighter than its palmtop projector peers that we've tested. Its image quality is decent for both stills and video.
Displaymate 1.25 Portable
The K11 has the looks of a classic palmtop mini-projector: black (glossy on top, matte on the sides—where not broken by grilles for ventilation and to expose the speaker). The projector is a nearly square box, measuring 1.7 by 4.6 by 4.8 inches (HWD)—it might fit in a winter coat pocket, but it would be tight. I weighed it at 1.25 pounds, with the power adapter and cord adding just over a pound more. The Editors' Choice Dell M109S is even smaller and lighter, but it's dimmer at 50 lumens and more limited in features, lacking a remote for one thing.
The K11 has a native resolution of 856 by 600 pixels, a rated brightness of 200 ANSI lumens (bright for a palmtop), and a rated contrast ration of 2,000:1. Inputs include VGA, composite video, and HDMI ports. It can operate as a standalone projector, running off a USB thumb drive or SD card.\n\nPerformance\nIn my testing using DisplayMate software (www.displaymate.com), image quality proved typical of a palmtop projector. Some minor artifacts—a recurrent shadow at one edge of the field of view, and some slight tints—were visible, but didn't seriously detract from the viewing experience. The projector did well in displaying both very bright and very dark grays.
With the Nokia 9 PureView HMD Global has released a new Nokia flagship smartphone with five rear cameras to pursue photographic perfection. The Nokia 9 PureView Android phone sports a 2K+ OLED screen, 6GB of RAM and is powered by a Snapdragon 845 processor. On the rear, there are five Sony sensors, all 12-megapixels with 1.25µm pixels, sitting behind Zeiss lenses. The Nokia 9 PureView also features an under-display fingerprint sensor, NFC, Qi Wireless charging and is IP67 rated.
Design and FeaturesThe U2868PQU's 3,840-by-2,160-resolution panel sits inside a matte-black cabinet that weighs 17 pounds and is 2 inches thick. The top and side bezels are 0.75 inch thick, while the bottom bezel is 1.25 inches thick. The bottom bezel holds a Power switch and four clearly labeled, touch-sensitive buttons that are used to navigate the on-screen menus and adjust settings.
Design and Features\nThe U2868PQU's 3,840-by-2,160-resolution panel sits inside a matte-black cabinet that weighs 17 pounds and is 2 inches thick. The top and side bezels are 0.75 inch thick, while the bottom bezel is 1.25 inches thick. The bottom bezel holds a Power switch and four clearly labeled, touch-sensitive buttons that are used to navigate the on-screen menus and adjust settings.
Abstract:Cell phones and smart phones can be reconfigured as biomedical sensor devices but this requires specialized add-ons. In this paper we present a simple cell phone-based portable bioassay platform, which can be used with fluorescent assays in solution. The system consists of a tablet, a polarizer, a smart phone (camera) and a box that provides dark readout conditions. The assay in a well plate is placed on the tablet screen acting as an excitation source. A polarizer on top of the well plate separates excitation light from assay fluorescence emission enabling assay readout with a smartphone camera. The assay result is obtained by analysing the intensity of image pixels in an appropriate colour channel. With this device we carried out two assays, for collagenase and trypsin using fluorescein as the detected fluorophore. The results of collagenase assay with the lowest measured concentration of 3.75 µg/mL and 0.938 µg in total in the sample were comparable to those obtained by a microplate reader. The lowest measured amount of trypsin was 930 pg, which is comparable to the low detection limit of 400 pg for this assay obtained in a microplate reader. The device is sensitive enough to be used in point-of-care medical diagnostics of clinically relevant conditions, including arthritis, cystic fibrosis and acute pancreatitis.Keywords: smart phone; fluorescence; polarization; trypsin; collagenase; clinical assays
Talking about the playback controls, users can choose between slower (0.5X or 0.75X) or faster (1.25X and 1.5X) options for video playback on their phone or tablet, and soon, on any screen of their choice. The playback control button appears in the bottom left corner of the screen while watching content.
Once users tap on it, a window will pop up that will let them choose between 0.5x, 0.75x, 1x (Normal), 1.25x and 1.5x playback speed options. However, the playback speed will revert back to normal every time users start watching a new movie or TV show, indicating that there might not be an option to set a default playback speed that applies to all content from the get-go.
Further, portable SSDs take the external hard drives up a notch and offer a more durable and a lot faster solution. There are secured drives as well, which are specifically designed to keep your files extremely secure. But these could be costly. 2ff7e9595c
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