Subj : Amateur Radio Newsline (B) To : All From : Daryl Stout Date : Thu Apr 27 2023 22:08:32 INDIAN RESEARCHERS DEVELOP MICRO-SUPERCAPACITOR PAUL/ANCHOR: When it comes to super-capacitors, scientists in India are calling their new development the smallest-of-the-small. We hear about it from Jason Daniels, VK2LAW. JASON: Scientists in India say that they have created the smallest micro- supercapacitor to date, developing it out of two-dimensional materials: graphene and molybdenum disulfide. This is considered significant because as electronic devices continue to shrink - as is the case with wearable sensors and smart devices - their energy storage devices must be just as small. Supercapacitors are considered ideal for this task because they not only store energy but can handle the kind of rapid charge-discharge cycles beyond the ability of conventional chemical batteries. Misra said that she and her colleagues used two-dimensional materials for the ultramicro-supercapacitor because they are semiconductors. Each of the multi-layer electrodes acts as a field-effect transistor. She told the IEEE Spectrum that the tiny device has a remarkably high capacitance and an easy ability to integrate with electronic chips because of its use of a gel electrolyte instead of a liquid. The researchers are not stopping there, however. Their next challenge is to create devices out of other two-dimensional materials in an attempt to boost capacitance even further. This is Jason Daniels, VK2LAW. (IEEE SPECTRUM) ** SILENT KEY: CALGARY EMERGENCY COMMUNICATOR JASON LOW, VE6SRT PAUL/ANCHOR: Hams in the amateur radio community - and the community-at- large - in Calgary, Alberta, are grieving the loss of a devoted public servant. Here's Andy Morrison, K9AWM, to tell us about him. ANDY: It is difficult for those who knew him to imagine the emergency communications community without Jason Low, VE6SRT, being there. Jason had served Redwood Meadows Emergency Services in Calgary as a firefighter, EMT and fire communications officer. Jason became a Silent Key unexpectedly on April 15th. According to the Redwood Meadows Emergency Services website, Jason could not be revived despite the best efforts of his colleagues and emergency medical personnel. Chief Rob Evans wrote on the website that the team was "devastated." According to Vince d'Eon, VE6LK, and Ian Burgess, VA6EMS, Jason - known to everyone as Jay - worked tirelessly to ensure the quality of emergency communications and shared his expertise in radio as well as the computer dispatch system. Ian told Newsline that Jay was a lifelong radio enthusiast who was introduced early on to the hobby by his scanner. He later got his ham license and used his skills to help communities in the Calgary area connect to the fire department's dispatch. Vince wrote in an email: [quote] "Jay was generous with his time and expertise, offering solutions across the province, the country, and the continent. There is no way to know how many people were safer and better cared for thanks to Jason." [endquote] Jay was 50. This is Andy Morrison, K9AWM. (VINCE D'EON, VE6LK; IAN BURGESS, VA6EMS) ** SILENT KEY: STEVE SZABO, WB4OMM PAUL/ANCHOR: Amateurs in the Florida community and beyond are mourning the death of a leader and an Elmer whose deep involvement in ham radio touched many lives over the years. We hear about him from Kevin Trotman, N5PRE. KEVIN: Well-known for his enthusiasm for QRP, Steve Szabo, WB4OMM, served as a powerful influence on the many amateurs he knew personally or had come to know on the air. Steve, a past president of the North American QRP CW Club, became a Silent Key on April 23rd. He had been diagnosed with lung cancer. His involvement with amateurs ran deep throughout his years on the air. He was a Life Member of the AARL, which he served as a volunteer examiner and QSL card checker and he had been Northern Florida Section Manager for four years. Steve also belonged to the Quarter Century Wireless Association, and numerous local and national clubs, including the Dayton Beach Amateur Radio Association, where he held numerous leadership roles. According to a post by Kevin, KK4BFN on QRZ.com, Steve started the Daytona Beach CERT Amateur Radio Team Group in 2005 and served as its president until illness earlier this year compelled him to step down. Steve was 70. This is Kevin Trotman, N5PRE. (QRZ, WB4OMM WEBSITE, DIGNITY MEMORIAL) ** BREAK HERE: Time for you to identify your station. We are the Amateur Radio Newsline, heard on bulletin stations around the world including the AH6LE repeater in Beavercreek and Wilsonville, Oregon, on Sundays at 6 p.m. local time. --- SBBSecho 3.20-Win32 * Origin: The Thunderbolt BBS - Little Rock, Arkansas (954:895/7) .