Shenzhen University

Researchers from Shenzhen University in China have developed new films for building exteriors, vehicles and equipment that don’t absorb light reducing the amount of cooling energy needed. Research was led by Wanllin Wang and have been published in the journal Optica. Reportedly the film was inspired by the nanostructures in butterfly wings and can lower the temperature of colorful objects to about two degrees below ambient temperatures.  “In buildings, large amounts of energy are used for cooling and ventilation, and running the air conditioner in electric cars reduce the driving range by more than half,” said Guo Ping Wang from Shenzhen University. “Our cooling films could help advance energy sustainability and carbon neutrality.  Scientists say that the design from the cooling nanofilm replicates Morpho butterflies. The research explains that a car painted blue appears blue because it absorbs yellow light and heat to reflect blue light. The Morpho butterfly appears blue due to the nanostructure of their wings. Reportedly the nanofilms are produced by placing a disordered material, or rough frosted glass under a multilayer material made of titanium dioxide and aluminum dioxide. Then the structure is placed in a silver layer that reflects all light, consequently preventing the absorption of solar radiation and heat. Thanks to the layered structure we developed, we are able to extend the passive cooling method from colorless objects to colorful ones while preserving color performance,” said Guo Ping Wang. “In other words, our blue film looks blue across a large range of viewing angles and doesn’t heat up because it reflects all the light. In addition, high saturation and brightness can be achieved by optimizing the structure.” The film’s color is determined by how components in the multilayered structure reflect light. To create blue the multilayer material reflects yellow light in very narrow range angles while the disordered structure diffuses the blue light across a large area. The research team created colorless, blue, and yellow films, which were placed outdoors at Shenzhen University on roofs, cars, cell phones, and cloth throughout the day in both summer and winter weather. Thermocouple sensors and infrared camera were used to measure temperatures. Scientists found that the films were about 15 C cooler than untreated surfaces in the winter, and in the summer untreated surfaces were about 35 C cooler.  Researchers note that replacing the silver film with an aluminum film would make the films more manufacturable by scalable fabrication method. The team also plans to study other properties such as chemical and mechanical robustness.

Recently, a research team resolved the contradiction between spatial resolution and imaging speed in optical microscopy. They achieved high-speed super-resolution by developing an effective technique termed temporal compressive super-resolution microscopy (TCSRM). TCSRM merges enhanced temporal compressive microscopy with deep-learning-based super-resolution image reconstruction. Enhanced temporal compressive microscopy improves the imaging speed by reconstructing multiple images from one compressed image, and the deep-learning-based image reconstruction achieves the super-resolution effect without reduction in imaging speed. Their iterative image reconstruction algorithm contains motion estimation, merging estimation, scene correction, and super-resolution processing to extract the super-resolution image sequence from compressed and reference measurements. As an indispensable tool for observing the microcosmos, optical microscopy has boosted the development of various fields, including biology, medicine, physics, and materials. However, optical diffraction imposes a spatial resolution restriction on optical microscopy, which hampers exploration of finer structures. To overcome the resolution limitation, various super-resolution microscopy techniques based on diverse principles have been proposed. Yet these techniques commonly acquire super-resolution at the expense of reduced imaging speed, so achieving high-speed super-resolution imaging that can detect fast dynamics with fine structures has remained a great challenge. Recently, a research team from East China Normal University, Shenzhen University, and Peking University resolved the contradiction between the spatial resolution and imaging speed. As reported in Advanced Photonics, they achieved high-speed super-resolution by developing an effective technique termed temporal compressive super-resolution microscopy (TCSRM). TCSRM merges enhanced temporal compressive microscopy with deep-learning-based super-resolution image reconstruction. Enhanced temporal compressive microscopy improves the imaging speed by reconstructing multiple images from one compressed image, and the deep-learning-based image reconstruction achieves the super-resolution effect without reduction in imaging speed. Their iterative image reconstruction algorithm contains motion estimation, merging estimation, scene correction, and super-resolution processing to extract the super-resolution image sequence from compressed and reference measurements. Their studies verified the high-speed super-resolution imaging ability of TCSRM in theory and experiment. To demonstrate the imaging capability of TCSRM, they imaged flowing fluorescent beads in a microchannel, achieving a remarkable frame rate of 1200 frames per second and spatial resolution of 100 nm. According to corresponding author Shian Zhang, Professor and Deputy Director of the State Key Laboratory of Precision Spectroscopy at East China Normal University, "This work provides a powerful tool for the observation of high-speed dynamics of fine structures, especially in hydromechanics and biomedical fields, such as microflow velocity measurement, organelle interactions, intracellular transports and neural dynamics." Zhang adds, "The framework of TCSRM can also offer guidance for achieving higher imaging speed and spatial resolution in holography, coherent diffraction imaging, and fringe projection profilometry."

MAULDIN, S.C., March 17, 2021 /PRNewswire/ -- Xcelerate, Inc. (OTC: XCRT), formerly known as Union Dental Holdings Inc., announced today it has been issued a new ticker symbol due to the Company's recent name change. The new symbol is "XCRT". "We believe this new ticker symbol is major step forward in giving Xcelerate a clear identity," said Michael O'Shea, Xcelerate's CEO. While the Company is currently pursuing innovative acquisitions at the patent/engineering level to join with early stage medtech companies in a controlled clinical care setting where developments will be trialed, tested, and applied, no specific agreements have yet been entered into. Xcelerate, led by CEO Michael O'Shea, has a distinguished advisory board including world renowned neurosurgeon, Dr. Dilan Ellegala and Nobel Prize Laureate Dr. Barry Marshall. Dr. Marshall AC FRACP FRS FAA recently joined its Advisory Board. In 2005 Dr. Marshall and his longtime collaborator Dr. Robin Warren were awarded the Nobel Prize in Physiology or Medicine for their discovery of the bacterium Helicobacter pylori (H. pylori) and its role in peptic ulcer disease. This discovery also established the causative link between Helicobacter pylori infection and stomach cancer. Currently Dr. Marshall serves as Clinical Professor and Director of The Marshall Centre for Infectious Diseases Research at University of Western Australia. Additionally, Dr. Marshall has been involved with the establishment of the Marshall Laboratory for Biomedical Engineering at Shenzhen University. Safe Harbor Statement This press release may contain forward looking statements which are based on current expectations, forecasts, and assumptions that involve risks as well as uncertainties that could cause actual outcomes and results to differ materially from those anticipated or expected, including statements related to the amount and timing of expected revenues as well as any payment of dividends on our common and preferred stock, statements related to our financial performance, expected income, distributions, and future growth for upcoming quarterly and annual periods. Actual results and the timing of certain events could differ materially from those projected in or contemplated by the forward-looking statements due to a number of factors among other matters, the Company may not be able to sustain growth or achieve profitability based upon many factors including but not limited to general stock market conditions. We have incurred and will continue to incur significant expenses in our expansion of our existing business and there is no assurance that we will generate enough revenues to offset those costs in both the near and long term. Additional expansion of our service offerings may expose us to additional legal and regulatory costs and unknown exposure(s) based upon the various geopolitical locations we will be providing services in, the impact of which cannot be predicted at this time. Company Codes: OTC-BB:XCRT, OtherOTC:XCRT