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KLEVV Reveals New DDR5 Standard and Gaming Memory Designed for Intel 12th Generation ‘Alder Lake’ platforms, QVL tested with leading motherboard brands HONG KONG — KLEVV, an emerging memory brand introduced by Essencore, today announced the latest addition to its lineup of computer memory upgrades with new DDR5 memory series, including DDR5 standard memory and […].

Huawei hosted a Better World Summit recently in Dubai, that brought together telecom operators from around the world to share insights and discuss ways to achieve the objectives of 5G next-gen networks with environmental sustainability and reaching Net-Zero emissions.

Unlike predecessor technology, 5G is at least 10x faster at launch, unlocks many new use cases from edge computing and network slicing, to scaled IoT deployments not possible with 4G. GlobalData expects 5G services to exceed $USD 640 billion by 2026 and penetration will exceed 50 per cent.

There is a paradox. The rise in data traffic is increasing energy costs and carbon emissions. For example, if the average data traffic, per user, per month reaches 630 Gigabytes by 2030 (industry estimates) and if network efficiency stays the same, then the average power consumption from networks will also increase by at least 10-fold. This runs counter to the goals of the GSMA for Net-Zero by 2040 as well as many individual MNOs with their own ESG targets, often more ambitious than industry targets.

A team of physicists and engineers at Lawrence Berkeley National Laboratory (Berkeley Lab) successfully demonstrated the feasibility of low-cost and high-performance radio frequency modules for qubit controls at room temperature. They built a series of compact radio frequency (RF) modules that mix signals to improve the reliability of control systems for superconducting quantum processors. Their tests proved that using modular design methods reduces the cost and size of traditional RF control systems while still delivering superior or comparable performance levels to those commercially available.

Their research, featured as noteworthy in the Review of Scientific Instruments and selected as a Scilight by the American Institute of Physics, is and has been adopted by other quantum information science (QIS) groups. The team expects the RF modules’ compact design is suitable for adaptation to the other qubit technologies as well. The research was conducted at the Advanced Quantum Testbed (AQT) at Berkeley Lab, a collaborative research program funded by the U.S. Department of Energy’s Office of Science.

Cracked phone screens could become a thing of the past thanks to breakthrough research conducted at The University of Queensland.

The global team of researchers, led by UQ’s Dr Jingwei Hou, Professor Lianzhou Wang and Professor Vicki Chen, have unlocked the technology to produce next-generation composite glass for lighting LEDs and smartphone, television and computer screens.

The findings will enable the manufacture of glass screens that are not only unbreakable but also deliver crystal clear image quality.

UC Berkeley physicist Norman Yao first described five years ago how to make a time crystal—a new form of matter whose patterns repeat in time instead of space. Unlike crystals of emerald or ruby, however, those time crystals existed for only a fraction of a second.

But the time has arrived for time crystals. Since Yao’s original proposal, new insights have led to the discovery that time crystals come in many different forms, each stabilized by its own distinct mechanism.

Using new quantum computing architectures, several labs have come close to creating a many-body localized version of a time crystal, which uses disorder to keep periodically-driven quantum qubits in a continual state of subharmonic jiggling—the qubits oscillate, but only every other period of the drive.

By Jeremy Batterson 11-09-2021

The equivalent of cheap 100-inch binoculars will soon be possible. This memo is a quick update on seven rapidly converging technologies that augur well for astronomy enthusiasts of the near future. All these technologies already exist in either fully developed or nascent form, and all are being rapidly improved due to the gigantic global cell phone market and the retinal projection market that will soon replace it. Listed here are the multiple technologies, after which they are brought together into a single system.

1) Tracking.
2) Single-photon image sensing.
3) Large effective exit pupils via large sensors.
4) Long exposure non-photographic function.
5) Flat optics (metamaterials)
6) Off-axis function of flat optics.
7) Retinal projection.

1) TRACKING: this is already being widely used in so-called “go-to” telescopes, where the instrument will find any object and track it, so Earth’s rotation does not take the object viewed out of the field of vision. The viewer doesn’t have to find the object and doesn’t have to set up the clock drive to track it. Tracking is also partly used in image stabilization software for cameras and smart phones, to prevent motion blurring of images.

2) SINGLE-PHOTON IMAGE SENSORS, whether of the single-photon avalanching diode type, or the type developed by Dr. Fossum, will allow passive imaging in nearly totally dark environments, without the use of IR or other illumination. This new type of image sensor will replace the monochromatic analogue “night-vision” devices, allowing color imaging at higher resolution than they can produce. Unlike these current devices, such sensors will not be destroyed by being exposed to normal or high lighting. Effectively, these sensors increase the effective light-gathering power of a telescope by at least an order of magnitude, allowing small telescopes to see what observatory telescopes see now.

3) EXIT PUPIL: The pupil of the dark-adapted human eye is around 7mm, which means light exiting a telescope must not have a wider-cross axis than this, or a percent of the light captured by the objective lens or mirror will be lost. If the magnification of a system is lowered, to give brighter images, this is limited by this roadblock. This is a well-known problem for visual astronomers. Astro-photographers get around this by two tricks. The first is to use a photographic sensor wider than 7mm, allowing a larger exit pupil and thus brighter images. A 1-inch sensor or photographic plate, for example, already allows an image thirteen times brighter than what a 7mm human pupil can see.

4) LONG EXPOSURE: The other trick astro-photographers use is to keep the shutter of their cameras open for longer periods, thus capturing more light, and allowing a bright image of a faint object to build up over time. As a telescope tracks the stars–so that they appear motionless in the telescopic view–this can be done for hours. The Hubble Space Telescope took a 100 hour long-exposure photograph leading to the famous “deep field” of ultra-faint distant galaxies. An example of a visual use of the same principle is the Sionyx Pro camera, which keeps the shutter open for a fraction of a second. If the exposures are short enough, a video can be produced which appears brighter than what the unaided eye sees. Sionyx adds to this with its black-silicon sensors, which are better at retaining all light that hits them. For astronomy, where stellar objects do not move and do not cause blurring if they are tracked, longer exposures can be created, with the image rapidly brightening as the viewer watches. Unistellar’s eVscope and Vaonis’s Stellina telescope, already use this function, but without an eyepiece. Instead, their images are projected onto people’s cell phones or other viewing devices. However, most astronomers want to be able to see something directly with their eyes, which is a limiting point on such types of telescopes.

5) FLAT OPTICS are already entering the cell phone market and will increase in aperture over coming years. A flat metamaterial lens, replacing a thick and heavy series of lenses can provide a short enough system to easily fit into a cell phone, with no protruding camera bumps. It is possible to produce such lenses with extremely short focal-ratios. Eventually, very large 20-inch or 30-inch objectives will be producible this way, but, in the interim, multiple small objectives could be combined at a DISTANCE from each other. There are two reasons for larger aperture objectives: increased light-gathering power and higher resolution. However, the higher resolution can also be obtained by having two or more smaller objectives kept far apart from each other. If the light-gathering power is already high enough from single-photon detectors, it is not necessary to have a larger aperture.

6) THE OFF-AXIS ability of flat metamaterial optics is another game-changer. In normal optics, the plane of focus travels straight down the perpendicular of the main light-collecting lens or mirror, the so-called “objective” lens or mirror. In an off-axis mirror or lens, the focal axis is not down the middle, but to the side or even totally external to the perpendicular plane of the objective. These types of optics are very difficult to produce traditionally but are easy to produce with the flat, metamaterial method. An example of the value of off-axis optics is a reflector telescope. When light bounces off a reflector’s objective mirror, it then hits a secondary mirror and bounces back to an eyepiece. But the secondary mirror obstructs the main mirror as light passes by it on the way to it. This creates diffraction patterns which reduce the resolution of the image. For this reason, refractors, which use lenses, and thus have no secondary obstruction, are superior in quality, although far harder and expensive to build. The off-axis function would also be valuable for large binoculars, which would not need secondary prisms or mirrors to bring the images to the width between two human eyes. Typical human pupils are two or three inches apart. With off-axis binoculars, the focus of the two objective lenses would be to the side of their diameters, and no secondary guidance of the light cones would be needed.

7) RETINAL PROJECTION is being developed in several ways by numerous companies, and within a decade should be fairly common. This is known generically as “augmented reality,” where a pair of glasses or contact lenses project an image over the normal vision. If a person closed their eyes in a darkened room, they could watch movies, or dictate papers with such a system—or view images of the stars from a telescope. For visual astronomers, who like the idea of seeing something in their eye, instead of viewing it on a TV screen, retinal projection will allow a nearly identical experience, but with all the superior functions listed in this memo.

THE FAMILY TELESCOPE AROUND THE YEAR 2035:
These functions can be brought together in numerous ways. Noted here is but one such possible way.

A) Two flat off-axis metamaterial lenses around 2.5 inches (~60mm) in diameter, and corrected for achromatic, spherical, and other optical aberrations, are positioned 30 inches apart, giving the resolution of a telescope with an objective mirror of 30-inch diameter. Since they have single-photon detectors, they will conservatively have an effective light-gathering power of something like 10-inch binoculars.

B) Whoever has control of the scope looks up at a stellar object, such as the famous M-42 nebula, and says, “zoom and track.” The scope then moves to where the controller is looking, or wherever else it is told to go.

C) A large image sensor increases the brightness of the view another order of magnitude over what the dark-adapted eye would see with 10-inch binoculars. Now, the image is as bright as what would be seen in 30-inch binoculars.

D) The time-exposure function adds yet another order or two of light-gathering power, depending on the length of exposure. Even exposures fractions of a second long already add more brightness. Longer exposures add more, in almost real time. Now, the image is equivalent to looking through something like 100-inch binoculars. As the producible aperture of metamaterial optics increases, the effective aperture will go up to 200-inch, 500-inch, etc.

Finally, the image is projected into the back of the viewer’s eye, as a wide-field image, wider than that of the best TeleVue eyepiece, and is simultaneously projected onto the retinas of many other people. This multiple-viewer function already exists with Stellina and eVscope, but the view is seen on multiple cell phone screens, instead of in multiple viewers’ own eyes.

As pointed out in an earlier memo, the rise of the single-photon detector will also render much of our bright city lights obsolete, since simple night-glasses will allow driving at night without headlights or streetlamps. This means that the night sky could be a lot darker to begin with, another boon to astronomers. Finally, with currently existing filters, it is already possible to filter out much of the light-noise coming from urban areas. This function will no doubt also be incorporated, along with built-in dew heaters, and other useful features.

With a minimalistic design and H-shaped front panel, the new mtu hydrogen fuel cell is a complete solution for power supply in the megawatt range that will be produced in series from 2025. This modern-looking module will in the future deliver a net power output of around 150 kW – sufficient to power approximately ten homes. It can also be connected together into scalable fuel cell power plants with outputs in the megawatt range – capable of providing clean backup power for large data centers.

The fuel cell module is the result of collaboration between Rolls-Royce and cellcentric, a joint venture company set up by Daimler Truck AG and Volvo Group AB earlier this year. It is based on cellcentric’s fuel cell modules that emit nothing other than water vapor. This will enable CO2-free, climate-neutral generation of emergency power for data centers.

“Electrical generators based on fuel cells represent the next leap forward in the energy transition, both for our customers and us,” said Andreas Schell, CEO of Rolls-Royce Power Systems. “That’s why we’re investing a three-digit million amount in R&D over the next few years, and we hope that this strong commitment will encourage governments and politicians to promote and support this pioneering, extremely climate-friendly technology. When they run on green hydrogen, meaning hydrogen made using renewable energy sources, fuel cells are climate-neutral. For this reason, and also because we’re simply convinced by fuel cell technology, we also want to look into how green hydrogen can be produced cost-effectively in the quantities we need.”

Wireless sensing devices, tools that allow users to sense movements and remotely monitor activities or changes in specific environments, have many applications. For instance, they could be used for surveillance purposes as well as to track the sleep or physical activities of medical patients and athletes. Some videogame developers have also used wireless sensing systems to create more engaging sports or dance-related games.

Researchers at Florida State University, Trinity University and Rutgers University have recently developed Winect, a new wireless sensing system that can track the poses of humans in 3D as they perform a wide range of free-form physical activities. This system was introduced in a paper pre-published on arXiv and is set to be presented at the ACM Conference on Interactive, Mobile, Wearables and Ubiquitous Technologies (Ubi Comp) 2,021 one of the most renowned computer science events worldwide.

“Our research group has been conducting cutting-edge research in wireless sensing,” Jie Yang, one of the researchers who carried out the study, told TechXplore. “In the past, we have proposed several systems to use Wi-Fi signals to sense various human activities and objects, ranging from large-scale human activities, to small-scale finger movements, sleep monitoring and daily objects For example, we proposed two systems dubbed E-eyes and WiFinger, which are among the first work to utilize Wi-Fi sensing to distinguish various types of daily activity and finger gestures.”