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Quantum-inspired design boosts efficiency of heat-to-electricity conversion November 21, 2024 Rice University Researchers have found a new way to improve a key element of thermophotovoltaic systems, which convert heat into electricity via light. Engineers designed a thermal emitter that can deliver high efficiencies within practical design parameters. Facebook Twitter Pinterest LinkedIN Email Researchers at Rice University have found a new way to improve a key element of thermophotovoltaic (TPV) systems, which convert heat into electricity via light. Using an unconventional approach inspired by quantum physics, Rice engineer Gururaj Naik and his team designed a thermal emitter that can deliver high efficiencies within practical design parameters. The research could inform the development of thermal-energy electrical storage, which holds promise as an affordable, grid-scale alternative to batteries. More broadly, efficient TPV technologies could facilitate renewable energy growth -- an essential component of the transition to a net-zero world. Another major benefit of better TPV systems is recouping waste heat from industrial processes, making them more sustainable. To put this in context, up to 20-50% of the heat used to transform raw materials into consumer goods ends up being wasted, costing the United States economy over $200 billion annually. TPV systems involve two main components -- photovoltaic (PV) cells that convert light into electricity and thermal emitters that turn heat into light. Both of these components have to work well in order for the system to be efficient, but efforts to optimize them have focused more on the PV cell. "Using conventional design approaches limits thermal emitters' design space, and what you end up with is one of two scenarios: practical, low-performance devices or high-performance emitters that are hard to integrate in real-world applications," said Naik, associate professor of electrical and computer engineering. In a new study published in npj Nanophotonics, Naik and his former Ph.D. student Ciril Samuel Prasad -- who has since earned a doctorate in electrical and computer engineering from Rice and has taken on a role as a postdoctoral research associate at Oak Ridge National Laboratory -- demonstrated a new thermal emitter that promises efficiencies of over 60% despite being application-ready. "We essentially showed how to achieve the best possible performance for the emitter given realistic, practical design constraints," said Prasad, who is the first author on the study. The emitter is composed of a tungsten metal sheet, a thin layer of a spacer material and a network of silicon nanocylinders. When heated, the base layers accumulate thermal radiation, which can be thought of as a bath of photons. The tiny resonators sitting on top "talk" to each other in a way that allows them to "pluck photon by photon" from this bath, controlling the brightness and bandwidth of the light sent to the PV cell. "Instead of focusing on the performance of single-resonator systems, we instead took into account the way these resonators interact, which opened up new possibilities," Naik explained. "This gave us control over how the photons are stored and released." This selective emission, achieved through insights from quantum physics, maximizes energy conversion and allows for higher efficiencies than previously possible, operating at the limit of the materials' properties. To improve on the newly achieved 60% efficiency, new materials with better properties would need to be developed or discovered. These gains could make TPV a competitive alternative to other energy storage and conversion technologies like lithium-ion batteries, particularly in scenarios where long-term energy storage is needed. Naik noted that this innovation has significant implications for industries that generate large amounts of waste heat such as nuclear power plants and manufacturing facilities. "I feel confident that what we have demonstrated here, coupled with a very efficient low bandgap PV cell, has very promising potential," Naik said. "Based on my own experience working with NASA and launching a startup in the renewable energy space, I think that energy conversion technologies are very much in need today." The team's technology could also be used in space applications such as powering rovers on Mars. "If our approach could lead to an increase in efficiency from 2% to 5% in such systems, that would represent a significant boost for missions that rely on efficient power generation in extreme environments," Naik said. The research was supported by the National Science Foundation (1935446) and the U.S. Army Research Office. Story Source: Materials provided by Rice University . Original written by Silvia Cernea Clark. Note: Content may be edited for style and length. Journal Reference : Cite This Page :60 jili

World’s second-largest polymer project breaks ground in SoharMurdered Sara Sharif was less than a week old when concerns were raised about her care, newly-reportable details show, as the Prime Minister said questions must be answered about the “shocking” case. The 10-year-old girl’s battered body was discovered at her family home in Woking, Surrey in August last year, with members of her family having already fled to Pakistan with her siblings and half-siblings. Following the conviction of Sara’s father Urfan Sharif, 42, and stepmother Beinash Batool, 30, for her murder, and uncle Faisal Malik, 29, of causing or allowing her death, previously unreportable details about the family’s contact with social services and the courts have been published. They include: – Concerns were raised about Sara’s care within a week of her birth in 2013, with her parents Urfan and Olga Sharif known to social services as early as 2010. – Surrey County Council repeatedly raised “significant concerns” that Sara was likely to suffer physical and emotional abuse at the hands of her parents. – There were three sets of family court proceedings but allegations that Urfan Sharif was physically abusing Sara and her siblings were never tested in court. – Sara was repeatedly returned to her parents’ care before finally being placed with her father and stepmother at their home in Woking in 2019, four years before she was murdered there. – Sara’s siblings and half-siblings were taken to Pakistan following her murder and they remain in the city of Jhelum, Pakistan, with their paternal grandfather, with efforts to return them to the UK still ongoing. Their identities are protected by a court order. Sir Keir Starmer described the case as “awful” and stressed the importance of safeguards for children being home-schooled in particular – as Sara was in the last months of her life. The trial of Sara’s killers heard that in January 2023 she had begun wearing a hijab to cover up her bruises at school and while teachers noticed marks on her face and referred her to social services in March, the case was dropped within days. She was taken out of school by her family in April, with the violence against her intensifying in the weeks before she died. Sir Keir said the case was one of violence and abuse and described it as “just shocking” to read about, adding: “Obviously, there’s going to be questions that need to be answered in relation to this case”. He said these related to “making sure that (there are) protecting safeguards for children, particularly those being home-schooled”. Cabinet minister Lucy Powell indicated on Thursday that details on how these will be made stronger will be announced “imminently”. As part of previously announced reforms to children’s social care, the Government said it would be introducing a new duty on parents where, if their child is subject to a child protection inquiry or is on a child protection plan – meaning the child is suspected of being at risk of significant harm – they will need local authority consent to home educate them. The plans, under the Children’s Wellbeing Bill, also include requiring local authorities to have registers of children not in school, in a bid to avoid children slipping under the radar. The Bill has not yet begun making its way through Parliament, but it is understood it could be introduced in the Commons as early as next week. England’s Children’s Commissioner, Dame Rachel de Souza, has described it as “madness” that an at-risk child could be taken out of school, and called for a change in the law so children who are suspected victims of abuse cannot be home educated. She called on the Government to bring in its reforms “without delay”. The Department for Education has said its plans will bring in greater safeguards for children in home education “so this can never be used to conceal abuse”. Figures published on Thursday showed that local authorities in England reported 111,700 children were in elective home education this autumn term, a rise from an estimated 92,000 in the previous autumn term. The trial, which concluded on Wednesday, had heard how Sara’s father had created a “culture of violent discipline”, where assaults on her had “become completely routine, completely normalised”. The new details reported on Thursday came after a High Court ruling that information about ongoing and previous court proceedings relating to Sara and her siblings could be published, following applications from the PA news agency and several other media organisations. Separately, a report published by the Child Safeguarding Practice Review Panel the day after the verdicts in Sara’s case showed that 485 children in England died or were seriously harmed by abuse or neglect, between April 1 2023 and March 31 2024. Panel chairwoman Annie Hudson described Sara’s case as “harrowing” as she called for a more joined-up approach to child protection, with a need for teachers, nurses, doctors, social workers, police and other professionals to share information to understand what is happening in a child’s life. Surrey County Council said an independently-led safeguarding review – known as a Local Child Safeguarding Practice Review (LCSPR) – of all professionals who had contact with Sara’s family is under way. Such reviews are aimed at identifying learning from cases and while no timeframe has been given, it is usually expected reports are published within six months.'Mufasa' stars 'pinching themselves' to be in 'Lion King' prequel



The Hemp Market Size Is Predicted To See Exponential Growth Reaching $15.08 Billion By 2028, A CAGR Of 20.6%Malik Nabers' frustration reaches a new peak after Giants' horrible loss right after benching Daniel Jones

Postecoglou: Spurs squad still believe in my ideasThe Director-General of the (NAFDAC), Prof. Mojisola Adeyeye, has reiterated the agency’s commitment to enforcing the ban on sachet and PET bottle alcoholic beverages. Prof. adeyeye who made this disclosure while speaking at a session in Abuja on Sunday emphasized that the ban on alcohol in sachets and PET bottles, initiated in 2018, has reached its final implementation stage. She urged manufacturers, distributors, and retailers to strictly adhere to the regulation, warning against the continued sale and distribution of the prohibited products. The phased withdrawal process stems from a ministerial directive and a 2018 agreement between the Federal Government and the Distillers and Blenders Association of Nigeria. As part of the agreement, NAFDAC ceased registering and renewing licenses for sachet and PET bottle alcohol products in 2018, providing manufacturers ample time to phase out production and clear existing stock. To ensure compliance, the agency has conducted extensive enlightenment campaigns and stakeholder engagements across the country. Highlighting the harmful consequences of easy alcohol access, particularly for teenagers and young adults, Prof. Adeyeye noted that sachet packaging makes alcohol both cheap and readily available, which poses significant risks to public health. The NAFDAC Director-General reaffirmed the agency’s unwavering commitment to safeguarding public health through robust regulatory measures. She urged all stakeholders in the alcoholic beverage industry to comply with the ban to foster a healthier society.

KANSAS CITY, Mo. — Taylor Swift once raved about the sweet potato casserole served at a New York City restaurant and now that recipe pops up every now and again at Thanksgiving. The holidays encourage many of us to try new recipes. Social media right now is flooded with recipes for appetizers, side dishes and desserts. Anyone making that cornbread casserole from TikTok? While we might not get to share a Thanksgiving feast with Swift — is your name Blake Lively? — or other celebrities beloved by Kansas City, we can eat like them. So here’s the recipe for that casserole Swift loved so much, and favorite family side dish recipes from Donna Kelce and Eric Stonestreet. Enjoy. Travis Kelce's mother, Donna Kelce, seen here last year at her son's music festival, dined on a cheesesteak made by actor Bradley Cooper at QVC festivities in Las Vegas this week. (Emily Curiel/Kansas City Star/TNS) If we tried to guess how many holiday dinner rolls Travis Kelce and his brother, Jason Kelce, have scarfed over the years, would it be in the hundreds? Thousands? Their mom has spoken often about the batches of holiday crescent rolls she has baked over the years. Based on the recipe that won the 1969 Pillsbury Bake-Off, Pillsbury’s Magic Marshmallow Crescent Puffs , they’re now known as Mama Kelce’s Dinner Rolls. They blend the crescent roll pastry with marshmallows, cinnamon and sugar. Dinner roll or dessert? We bet they didn’t last long enough in front of Travis and Jason for that debate. Ingredients Rolls •1/4 cup granulated sugar •2 tablespoons Pillsbury Best all-purpose flour •1 teaspoon ground cinnamon •2 (8-ounce) cans refrigerated Pillsbury Original Crescent Rolls (8 Count) •16 large marshmallows •1/4 cup butter or margarine, melted Glaze •1/2 cup powdered sugar •1/2 teaspoon vanilla •2-3 teaspoons milk •1/4 cup chopped nuts Directions Make the rolls 1. Preheat oven to 375°F. Spray 16 medium muffin cups with nonstick baking spray. 2. In a small bowl, mix the granulated sugar, flour and cinnamon. 3. Separate the dough into 16 triangles. For each roll, dip 1 marshmallow into melted butter; roll in the sugar mixture. Place marshmallow on the shortest side of a triangle. Roll up, starting at shortest side and rolling to opposite point. Completely cover the marshmallow with the dough; firmly pinch edges to seal. Dip 1 end in remaining butter; place butter side down in muffin cup. 4. Bake for 12 to 15 minutes or until golden brown. 5. When done, remove from the oven and let the puffs cool in the pan for 1 minute. Remove rolls from muffin cups; place on cooling racks set over waxed paper. Make the glaze and assemble In a small bowl, mix the powdered sugar, vanilla and enough milk for desired drizzling consistency. Drizzle glaze over warm rolls. Sprinkle with nuts. Serve warm. Eric Stonestreet attends 'Eric Stonestreet visits The SiriusXM Hollywood Studios in Los Angeles' at SiriusXM Studios on Oct. 8, 2019, in Los Angeles. (Emma McIntyre/Getty Images for SiriusXM/TNS) Thanksgiving is one of the “Modern Family” star’s favorite holidays. Three years ago, as part of a campaign honoring hometown heroes , he shared one of his favorite recipe with McCormick Spices: Roasted Brussels Sprouts with Bacon and Butternut Squash . This recipe serves eight. Ingredients •1 pound Brussels sprouts, trimmed and halved •1 pound butternut squash, peeled and cut into bite-size cubes •1 tablespoon olive oil •1/2 teaspoon garlic powder •1/2 teaspoon thyme leaves •1/2 teaspoon salt •1/4 teaspoon ground black pepper •5 slices bacon, chopped •1 shallot, finely chopped •1/2 cup dried cranberries •1/4 cup balsamic vinegar •1 teaspoon whole grain mustard •1/2 cup chopped pecans, toasted (optional) •1/3 cup crumbled blue cheese, (optional) Directions 1. Preheat oven to 475°F. Spray large shallow baking pan with no stick cooking spray; set aside. Place Brussels sprouts and squash in large bowl. Drizzle with olive oil and sprinkle with garlic powder, thyme, salt and pepper; toss to coat evenly. Spread in single layer on prepared pan. 2. Roast 16 to 18 minutes or until tender and lightly browned, stirring halfway through cooking. 3. Meanwhile, cook bacon in medium skillet on medium heat about 6 minutes or until crispy. Remove using slotted spoon and place on paper towels to drain. Add shallot to same skillet; cook and stir 2 minutes until softened and lightly browned. Stir in cranberries, vinegar and mustard until well blended. Transfer mixture to small bowl; set aside. 4. Arrange roasted Brussels sprouts and squash on serving platter. Drizzle with cranberry balsamic glaze and toss gently to coat. Sprinkle with cooked bacon, toasted pecans, and crumbled blue cheese, if desired. Serve immediately. Donna Kelce, left, mother of Chiefs tight end Travis Kelce watched the game with pop superstar Taylor Swift, center, during the first-half on Sunday, Sept. 24, 2023, at GEHA Field at Arrowhead Stadium in Kansas City. (Tammy Ljungblad/Kansas City Star/TNS) Swift gushed about the sweet potato casserole served at Del Frisco’s Grille in New York City, a dish crowned with a crunchy candied pecan and oatmeal crumble. “I’ve never enjoyed anything with the word casserole in it ever before, but it’s basically sweet potatoes with this brown sugary crust,” she told InStyle. ”Oh my God, it’s amazing.” The media rushed to find the recipe, which Parade has published this Thanksgiving season . “Similar to T. Swift herself, we think this recipe is a mastermind, especially if you’ve been asked to bring the sweet potato side dish to this year’s Thanksgiving feast. It seriously begs the question: who needs pumpkin pie?” the magazine writes. Ingredients •4 lbs sweet potatoes •1⁄3 cup oats •12 oz unsalted butter, divided •1⁄2 cup packed brown sugar •1⁄2 cup toasted pecans •1⁄2 cup granulated sugar •1 tsp kosher salt •2 tsp vanilla extract •4 large eggs, beaten Directions Preheat oven to 375°F. 1. Scrub sweet potatoes. Pierce each several times with a fork and wrap tightly in foil. Place on a sheet pan. Bake 90 minutes or until tender. Set aside until cool enough to handle. 2. Meanwhile, place oats in a food processor; process 1 minute. Add 4 oz butter, brown sugar and pecans; pulse five times to combine. Spread mixture on a baking sheet; bake 10 minutes. Remove from oven, crumble. Bake 5 minutes or until golden brown. 3. Melt remaining 8 oz butter. Remove skin from cooled sweet potatoes. In a large bowl, whisk sweet potatoes, melted butter, granulated sugar and remaining ingredients until slightly lumpy. Transfer to a greased baking dish, smoothing surface evenly. Top with oat mixture. Bake 12 minutes or until heated through. Make-ahead tips •Sweet potato filling can be made up to 2 days in advance. Prepare the sweet potato filling, cool, place in a casserole dish and keep refrigerated. •Oat-pecan crust can also be made up to 2 days ahead. Make the crust according to recipe directions, cool and store in an airtight container at room temperature. Sprinkle over the sweet potato filling just before baking. With our weekly newsletter packed with the latest in everything food.

Letter on women COs shows how some Army officers are stuck in a time warpCAL STATE NORTHRIDGE 89, UTAH TECH 7946 Stocking Stuffers For Kids They'll Truly LoveFrom Fax Machines to Nicotine-Brown Walls, ‘NCIS: Origins’ Keeps Things Firmly in 1991

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