苏州桑拿

1 person killed in New Berlin car crash

first_imgPolice say a vehicle travelling northbound on State Highway 8 crossed into the opposite lane of traffic and struck a vehicle head-on. The driver of the vehicle travelling southbound died at the scene. NEW BERLIN, N.Y. (WBNG) — New York State Police responded to a report of a two-car crash on State Highway 8 Tuesday afternoon. The driver travelling northbound has been transported to Saint Elizabeth Medical Center in Utica. Police have not released the identity of the victim as the investigation is ongoing. Both drivers were the only occupants in each vehicle at the time of the crash. State Highway 8 remained closed for several hours but is now reopen. This is a developing story. Stay with 12 News for future updates.last_img

City, United Divide Manchester as Pep Welcomes Ole

first_imgThe champions cruised to a 4-1 victory over Burnley at Turf Moor to return to winning ways, while United beat Tottenham Hotspur 2-1 on former manager Jose Mourinho’s first return to Old Trafford.The matches continue to come thick and fast for Man City as they gear up for a festive period in which the quality and depth of their squad will be tested to the limit.December could hardly have got off to a better start as Guardiola’s side eased to only their second win from their last six games across all competitions at Turf Moor, with misfiring striker Gabriel Jesus also ending his drought in the process with a well-taken brace.However, things only get harder from hereon in, with City’s three remaining league games before Christmas seeing them come up against United, Arsenal and Leicester City, the latter of whom current sit between the champions and runaway leaders Liverpool in the table.One positive is that Guardiola will have opportunities to rest players between those matches – they have already secured their place in the last 16 of the Champions League ahead of next week’s match at Dinamo Zagreb, while a second or even third-string City side will still be fancied to beat League One Oxford United in the EFL Cup quarter-finals.It is still a challenging run of fixtures at the most difficult stage of the season, though, and with City having already dropped 13 points this season – only three fewer than the whole of last term and one fewer than their 100-point campaign – those opponents will fancy their chances of further denting the champions’ title defence.Man City have not won successive league games since the start of November, which is a wildly inconsistent spell by their standards, and a patchy recent home record against their near neighbours suggests that they may have their work cut out to end that relative drought this weekend.In general, though, City’s record at the Etihad is exemplary, with 23 wins and only one defeat from their 26 home outings across all competitions in 2019.In the Premier League alone they have won 24 of their last 27 home games, scoring 81 goals in that time, although they have already dropped more points in front of their fans this season than they did throughout the whole of 2018-19.Another slight concern may be the fact that they have only kept one clean sheet in their last seven matches at the Etihad, while home and away it is now eight games since they last managed a shutout – a curious problem which has also affected title rivals Liverpool in recent months.Nonetheless, a trip to the Etihad remains a daunting proposition for any visiting team, and United’s own away record will do nothing to fill their travelling supporters with belief.Ole Gunnar Solskjaer’s side have won just one of their last 11 away league outings stretching back to February, losing six of those including defeats at Everton, West Ham United, Newcastle United and Bournemouth, as well as draws at Huddersfield Town, Southampton and Sheffield United.The latter of those was their most recent away outing in the Premier League, and even then it took a seven-minute purple patch, during which the Red Devils scored three times, to paper over the cracks of another dismal performance.Indeed, United’s only away win in the league since February came at struggling Norwich City, with the Canaries one of only four teams who have amassed fewer points on the road this season.The story does not improve much in all competitions either with only three wins in their last 17 on the road, including a 2-1 defeat at the hands of Kazakhstani minnows Astana in their most recent such outing.Unsurprisingly given such rotten form, clean sheets have also been difficult to come by, with their last away Premier League shutout coming in February – a run of 12 matches in which they have been unable to prevent the opposition from scoring.Solskjaer will, of course, be keen to focus on the positives rather than those negatives ahead of this match, and Wednesday’s win over his predecessor Mourinho may have come at the perfect time.Marcus Rashford inspired his team to victory with a display Solskjaer regarded as his best during their time working together, and if the England international can continue his rich vein of form today then he will fancy his chances of unsettling a Man City defence with problems of their own.Remarkably, United have not won back-to-back league matches for more than nine months now, so to do so against two of their big-six rivals in the space of three days would be a major step towards some much-needed consistency.The Red Devils actually have a good record against those ‘big six’ despite their recent struggles, avoiding defeat in each of their last five such games, including becoming the only team to take points off Liverpool this season.The Spurs win lifted United up into sixth and also eased the pressure on Solskjaer somewhat, but they remain eight points adrift of the Champions League places and the Norwegian will know that his job will be back under scrutiny if that gap grows any bigger.So far this season, City have fallen some way short of the exacting standards they have set themselves over recent years under Pep Guardiola’s tutelage. Meanwhile, United is still immersed in post-Ferguson angst as Solskjaer grapples with his team’s continuing underachievement.David de Gea has backed Manchester United to beat derby rivals City in today’s crunch showdown at the Etihad.United will head across town in confident mood following the midweek win over Tottenham to ruin Jose Mourinho’s return to Old Trafford. Rashford scored twice to inspire a 2-1 triumph, lift United into sixth in the Premier League table and ease the pressure on under-fire boss Ole Gunnar Solskjaer.Beating the reigning champions will be a different challenge altogether, however, but De Gea believes United have a chance if they can take the form showed against Spurs into the showdown with Pep Guardiola ‘s men.Share this:FacebookRedditTwitterPrintPinterestEmailWhatsAppSkypeLinkedInTumblrPocketTelegram Manchester City’s contention with Premier League leaders, Liverpool will continue today when Pep Guardiola’s side welcome Manchester United to the Etihad Stadium. The reigning champions trail the Reds by 11 points. The Citizens have won three of their last four league clashes with United, though, and will be determined to collect another three points in this weekend’s Manchester derby. Both teams warmed up for the game with impressive wins in midweek as City beat Burnley and United overcame SpursThe Manchester derby is always a key clash in the Premier League calendar and all eyes will be on the Etihad Stadium when City take on United, as the two footballing giants face-off for the first time this season. Yet the confrontation will be significant for reasons that go way beyond goals and titles.City welcome United to the Etihad Stadium for the 179th edition of the Manchester derby as both sides look to build on midweek wins.last_img read more

Željezničar officially signed Contract with Javier Hervas

first_imgThe football club Željezničar yesterday officially signed the contract with Spaniard Javier Hervas, who will join the team at the end of this season.During the presentation of reinforcement, Director of the club Mirsad Šiljak said that with its work Željezničar wants to improve criteria in the Premier League of BiH.“With his playing experience, Hervas can improve the Premier League of BiH,” Šiljak said.Šiljak noted that this is an example of how players from other countries can create all preconditions for their progress and improvement of the Premier League of BiH, with seriousness and work.“Signing the contract with Hervas is an impulse and a challenge to all serious players who are to come to the Premier League,” Šiljak added.Hervas said he is satisfied with what he found out about Željezničar.“I found out this is a winner club with a long history. I will give my best to help this club achieve a victory on national level, and then in Europe,” Hervas added.The 26-year-old Hervas is playing as midfielder and he will be the first Spanish citizen to perform for FC Željezničar.Hervas is the third reinforcement of Željezničar for the season 2016/2017. In his previous career, Hervas played for Cordoba, Seville, Hercules and Sabadella, and he is coming to Željezničar from the Australian Brisbane Roar.(Source: radiosarajevo.ba)last_img read more

Wales Cop cautioned husband and wife without witness – jury hears

first_imgBoxing Night fatal stabbingThe High Court trial of Nyron Thakurdyal and his reputed wife, Vishawantie Ragnauth, commenced before Justice Sandhill Kissoon on Wednesday, where the 12-member jury heard that when murder allegations were put to the duo, Constable Kevon Bennett was the lone Police rank present. This means that it will be his word against theirs, as he admitted under cross-examination by lawyer for the two defendants, Nigel Hughes.Ragnauth, the number one accused; and Thakurdyal, her common-law husband and an alleged accomplice are on trial for the murder of Ragnauth’s 39-year-old uncle, Sunil Ramsundar on December 26, 2014, at Patentia, West Bank Demerara. Reports were that Ramsundar allegedly attempted to settle a dispute between his sister, niece and his niece’s reputed husband.During Wednesday’s hearing, Constable Bennett who was stationed at the WalesDeceased: Sunil RamsundarPolice Station during the murder investigation, said after he received instructions, he went to Skull City, Patentia, where the murder occurred and told the accused persons of their alleged crime. Bennett later noted that Thakurdyal responded saying “Big man, me just part them.”Under evidence-in-chief led by Prosecutor Orinthia Schmidt, the Police witness claimed that the duo appeared nervous and shaking while in custody, though he later admitted in court that he never included that in his statement nor disclosed those descriptions to the Magistrate.Under questioning by Attorney Hughes, Bennett said he could not recall why he did not ask the two accused if they wanted to put anything in writing. During questioning, he also said only he was present with the accused when he spoke with them while they were in custody.Eta Lakram of Patentia Housing Scheme was the deceased’s mother-in-law. In her testimony, she said after she was told that Sunil was stabbed around 22:00h, she went to the area and saw his body braced against a fence.“When I look at he, from he neck come down is share blood,” the woman told the court.Police investigator Amir Riknauth also testified. He took three images of the murder scene but only two were presented. He said the other was blurred. However, under cross-examination, he admitted that half of one of the printed pictures was distorted, leaving Attorney Hughes to declare that the Policeman presented one and a half a picture to court.According to the State’s cases, Sunil Ramsundar’s sister was reportedly being assaulted by her daughter Vishawantie and reputed husband Thakurdyal. At that time, reports stated that the now deceased man enquired from his sister why she was crying, and upon learning that the couple had physically assaulted her, the man approached his niece for an explanation. However, this reportedly turned into a heated argument, during which Ramsundar was stabbed about his body. He collapsed on the spot and was pronounced dead on arrival to the West Demerara Regional Hospital.last_img read more

The life and times of Charlie Collins Snr. celebrated at special event

first_imgThe Letterkenny community came together last Friday to honour the legacy of late Charlie Collins Snr.Great stories and fond memories were shared by friends and family in tribute to the well-known Letterkenny man during Community Heritage Weekend 2019.Charlie ‘Bovril’ Collins was remembered as a man of many talents, from football to boxing, dancing and entertaining. A leading Donegal sportsman and a legend in his own time, Charlie played for Derry City, Letterkenny Crusaders and Letterkenny Rovers. He was also a member of the Junior GAA team that reached Croke Park in the All Ireland Semi Final in 1952, bringing great pride to the town in the first time this team ever achieved this honour.The most poignant talk and memories were recalled by Charlie’s eldest son, also named Charlie, who in the company of brothers Martin and Liam recalled happy times in Letterkenny.Tribute event in memory of Charlie Collins Snr, Station House Hotel LetterkennyThere were tears shed and times recalled as guests listened to Evelyn Gallagher sing her Letterkenny Town. A piece of history was shown as guests watched Charlie Snr sing at a reunion dance some 25 years ago. In the company of his sister, sons and grandchildren family and friends, guests listened to numerous speakers give their memories of Charlie and his beloved Bida.Father Willie Mc Menamin and Letterkenny Mayor Ian Mc Garvey spoke of football days and the Summer cups and stories of a bygone era.Tribute event in memory of Charlie Collins Snr, Station House Hotel LetterkennyTribute event in memory of Charlie Collins Snr, Station House Hotel LetterkennyTribute event in memory of Charlie Collins Snr, Station House Hotel LetterkennyAnthony Gorman from Letterkenny Rivers and Daniel O Doherty from Derry City recalled Charlie Snr’s contribution to their clubs over the years. A great collection of pictures were shown on screen and Charlie shared a professional presentation and explanation of them all.The night was chaired by Brian Walsh and sponsored by Councillor Jimmy Kavanagh for the Heritage group.Pictured with Martin Collins is Councillor Jimmy Kavanagh who sponsored the night for the Letterkenny Heritage group.Letterkenny Community Heritage Weekend 2019 was another success for the group. Another event was held on Saturday with Comhaltas Letterkenny, in appreciation of the group’s contribution to preserving and promoting traditional Irish music and culture.The life and times of Charlie Collins Snr. celebrated at special event was last modified: May 7th, 2019 by Staff WriterShare this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Skype (Opens in new window)Click to print (Opens in new window) Tags:charlie collins snrLetterkenny Community Heritage Grouplast_img read more

Capsized kayak prompts rescue mission off Donegal coast

first_imgRescue volunteers with the Bundoran RNLI were called to action this afternoon after a capsized kayak was spotted off the shore at Nuns Pool.The alarm was raised shortly before 3pm when concerned crew member Fergal Muller saw an empty kayak from the cliffs on Bundoran’s West End.The lifeboat was launched within five minutes, with helm Brian Gillespie and three crew members onboard. Once on scene, the crew recovered the kayak and began a 25-minute search for any occupants.Fortunately, during the search, word came to Bundoran Lifeboat Station that the occupant had been brought to shore by fellow kayakers while the kayak had been carried out to sea in a rip current. The lifeboat was subsequently stood down.Speaking following the call out, Captain Tony McGowan, Bundoran RNLI Lifeboat Operations Manager said: “We are delighted that no one was in any immediate danger this afternoon and that the group of kayakers had made their way safely to shore. I would like to commend Fergal for his quick thinking in raising the alarm when he observed the capsized kayak and praise the crew for what was a swift response. “We would remind anyone planning a trip to sea regardless of their activity, to always respect the water. Always wear a lifejacket, always carry a means of communication and should you get into difficulty call 999 or 112 and ask for the Coast Guard. “We would also appeal to everyone to remember that should you for any reason need to leave or abandon your vessel, to please report it as missing to the Coast Guard once you have safely made it to shore.”Capsized kayak prompts rescue mission off Donegal coast was last modified: November 17th, 2019 by Rachel McLaughlinShare this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Skype (Opens in new window)Click to print (Opens in new window)last_img read more

Your Motors Are Turbo-Charged

first_imgThink how fast 6000 rpm is.  It would redline on most cars.  Yet you have motors in your body that make that speed look like slow-mo.    The Japanese have taken great interest in the cellular machine ATP synthase since its rotary operation was discovered in 1996 (see 12/22/2003 entry).  Maybe it’s because they like rotary engines.  ATP synthase is an essential protein complex that generates ATP (adenosine triphosphate), the energy currency of the cell.  Found in the membranes of mitochondria and chloroplasts, it runs on an electrical current of protons, from sunlight (in plants) or digestion (in animals).  It is a reversible engine: it can just as easily generate protons from the dissociation of ATP.  It has five major protein parts, including a rotor, a stator, and a camshaft.  The F0 domain runs like a waterwheel on protons and turns the camshaft.  Three pairs of lobes in the F1 domain catalyze ATP from ADP and phosphate, in a three-phase cycle of input, catalysis, and output.  Each revolution generates 3 ATP.    Hiroshi Ueno and team, reporting in PNAS,1 have invented new techniques for studying and measuring the tiny motors.  Now, with the aid of a high-speed camera running at 8,000 frames per second, they have clocked the rotational speed of the entire F0F1-ATP Synthase motor at 352 revolutions per second, a whopping 21,120 rpm.    Although this molecular machine exists in all life forms, they used motors from a thermophilic bacterium.  To monitor the action, the team fastened a microscopic bead to the carousel of c subunits.  At 25° C, it ran at 230 rps.  At 45° C, it ran at 650 rps.  Extrapolating up to 60° C, the organism’s optimum growth temperature, they speculate that it could be running as fast as 1,600 rps – an unbelievable 96,000 rpm – and that with nearly no friction and almost ideal efficiency.  While they caution that reservation is needed whether these “enormous numbers” are actually achieved, they do say with confidence that the rotation rates they measured are much higher than earlier claims.  “It is intriguing to learn,” they say, “whether these rapid rotations are really occurring in living cells.”1Ueno et al., “ATP-driven stepwise rotation of F0F1-ATP synthase,” Proceedings of the National Academy of Sciences USA, 10.1073/pnas.0407857102, published online before print January 24, 2005.We owe an apology to our readers.  We have been repeating earlier reports that ATP synthase runs at 6,000 rpm.  That’s like insulting the Ferrari company by watching one moving slowly in a parking lot and claiming it is rated at 10 mph.  We’re sorry for not giving proper credit to the Designer of this high-performance marvel.  Eat your heart out, Charlie.(Visited 38 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

South Africa expands ARV treatment

first_imgAids 2012 LIVESouth Africa’s participation at Aids 2012 will be webcast live on www.brandsouthafrica.com on Monday evening – schedule to be confirmed – watch this space! The report states that low and middle-income countries invested US$8.6-billion for the HIV/Aids response in 2011, an increase of 11% from 2010. According to the report, 81 countries increased their domestic investments for Aids by more than 50% between 2006 and 2011. As economies in low and middle-income countries grew, domestic public investments for Aids also grew.Dealing decisively with HIV and tuberculosis “Clearly, the continent is doing much to deal decisively with the twin epidemics of HIV and tuberculosis,” Motsoaledi said. Sixty percent of people living with HIV in sub-Saharan Africa were women and girls, and Motsoaledi said access to education for girls, keeping girl children in school for as long as possible and empowerment of women in other ways were critical in the fight against the epidemic. “Given that TB is a twin of HIV, we also need to pay more attention to TB, especially with the finding that more than 80% of people living with HIV and TB live in sub-Saharan Africa,” he said. According to the report, domestic public spending in sub-Saharan Africa, not including South Africa, increased by 97% over the last five years. South Africa already spends more than 80% from domestic sources and has quadrupled its domestic investments between 2006 and 2011. BRICS countries – Brazil, Russia, India, China and South Africa – also increased domestic public spending on HIV by more than 120% between 2006 and 2011. BRICS countries now fund, on average, more than 75% of their domestic Aids responses, according to the report.‘Significant declines in new HIV infections’ In 2010, UNAids reported that at least 56 countries had either stabilised or achieved significant declines in rates of new HIV infections. This trend has been maintained and new HIV infections have fallen by nearly 20% in the last 10 years worldwide. New global data shows that 2.5-million people were newly infected with HIV, 100&nbps;000 fewer than the 2.6-million new infections in 2010. Motsoaledi said while the 2012 report paints a good picture, there is more work to be done. “This means that we must still ensure that sufficient domestic and global resources are mustered to deal with the epidemic.” The report also outlines the significant progress that has been made in reducing new HIV infections in children. Since 2009, new infections in children have fallen by an estimated 24%. Some 330 000 children were newly infected in 2011, almost half than at the peak of the epidemic in 2003, which was 570 000. Sustaining the Aids response will require strong country ownership and global solidarity, stresses the report. It also emphasises the need for investments to be sustainable and predictable and that countries must be able to mobilise and use resources effectively and efficiently. Source: SANews.gov.za 20 July 2012 South Africa’s Health Minister Aaron Motsoaledi says there has been an increase in the number of people receiving free antiretroviral treatment, with 20% more people living with HIV having been put on treatment between 2010 and 2011. “We have significantly increased the number of new patients on ARV treatment – an additional 300 000 patients on treatment – between 2010 and 2011,” Motsoaledi said at the launch of the Joint United Nations Programme on HIV/Aids (UNAids) 2012 Global Aids Report in Pretoria on Thursday. last_img read more

Shropshire Supplies 7cm Side Combs Hair Combs Pack of 4 – These are good hair combs

first_imgThesedo properly in maintaining hefty hair held back again.These combs maintain the hair perfectly, just what i wished. They are fairly priced and delivery was rapidly.The combs are a little bit versatile which is fantastic. I slept with some in my hair and it failed to split. I’ve a form 4 hair so make guaranteed you comb your hair in a single course and that there is no tangles, for uncomplicated and pain-free software of the side combs. Over-all i am pleased with the solution.Bought as a present for my boyfriends mother who has pretty good hair now and has problems keeping slides in. She beloved these and reported they were being a much better dimension as in scaled-down than the other ones she was making use of and a lot more pliable furthermore they held her hair in far better so incredibly pleased.The combs are a little bit versatile which is fantastic. I slept with some in my hair and it failed to split. I’ve a form 4 hair so make guaranteed you comb your hair in a single course and that there is no tangles, for uncomplicated and pain-free software of the side combs. Over-all i am pleased with the solution.Reviews from purchasers :Does what it says.BOUGHT AS A PRESENTThese are good hair combsRegular comb slides, what much more can be claimed.Effortless to use, flexible devoid of remaining fragile and not brittle and tricky in opposition to scalp both. With my hair i need to have the 9cm ones. But this pack has 4 so i can nonetheless deal with with 7cm combs too. Likely to invest in in other colors way too if accessible.Effortless to use, flexible devoid of remaining fragile and not brittle and tricky in opposition to scalp both. With my hair i need to have the 9cm ones. But this pack has 4 so i can nonetheless deal with with 7cm combs too. Likely to invest in in other colors way too if accessible.Wonderful for the selling price, a prong broke off currently even though.Regular comb slides, what much more can be claimed.Bought as a present for my boyfriends mother who has pretty good hair now and has problems keeping slides in. She beloved these and reported they were being a much better dimension as in scaled-down than the other ones she was making use of and a lot more pliable furthermore they held her hair in far better so incredibly pleased.Solution arrived early, really happy,appears to be fab.I acquired them for my girlfriend and she enjoys them as it was hard to obtain them in black. The objects arrived just a pair of times late but in exceptional affliction. Royal mail at there finest or worst.Suitable for sensible hair use ☺.Purchased them prior to so understood what i was obtaining.I acquired them for my girlfriend and she enjoys them as it was hard to obtain them in black. The objects arrived just a pair of times late but in exceptional affliction. Royal mail at there finest or worst.Wonderful for the selling price, a prong broke off currently even though.Solution arrived early, really happy,appears to be fab.Purchased them prior to so understood what i was obtaining.last_img read more

Government Earmarks $11.5 Million for Building Research

first_imgThe Department of Energy will spend $11.5 million on 16 research projects aimed at improving the energy performance of building envelopes and HVAC systems in U.S. homes. The Building America Industry Partnerships will underwrite research in three broad categories: advanced residential envelope and HVAC systems, fault analysis for residential HVAC systems, and how building industry standards affect energy performance. The announcement came from the Building Technologies Office (BTO), which is part of the Department of Energy’s Office of Energy Efficiency & Renewable Energy.RELATED ARTICLESAeroseal Rolls Out Air-Sealing Technology for HousesHow to Build a ‘Perfect Wall’Energy and Building Programs Brace for Trump BudgetHanley Award Goes to Energy Star’s Sam Rashkin The average American household spends more than $2,000 a year on energy bills, with U.S. homes accounting for 20% of total energy consumption and 37% of all electricity use, the BTO said. In all, spending on residential energy is $240 billion a year. “While building materials and HVAC equipment efficiency have improved over recent decades,” the office said, “a number of challenges continue to result in significant energy losses.” Air sealing houses with an aerosol One of the technologies on the grant list is the use of an aerosol sealant to plug up air leaks in a building envelope. The promising technique called AeroBarrier was commercialized by Aeroseal, which used research from the University of California, Davis to market a system for sealing air ducts. AeroBarrier was first tested on a single-family house in 2012. The technology was licensed to Aeroseal in 2015. (For a detailed slide presentation on the process, click here.) AeroBarrier is designed to simplify what is now the painstaking and relatively expensive process of sealing leaks in the building shell with caulk, gaskets, and specialized tapes. Instead, technicians pressurize the house with a blower door and release an aerosol mist through tripod-mounted spray nozzles. Forced out of the house through gaps in exterior walls, floors and ceilings, the atomized latex material seals the exterior within a matter of hours. At least to a point, the longer the system runs, the tighter the house gets. According to the company, the process is capable of sealing a house well enough to pass the Passivhaus airtightness standard of 0.6 air changes per hour at 50 pascals of pressure (ach50). As part of the grants just announced, the Center for Energy and Environment (CEE) in Minneapolis will study the use of the technology on existing homes. Dave Bohac, the center’s director of research, said in a telephone call that some of the details of the two-year study are still being worked out. With UC Davis as a partner, researchers will test the process on 22 apartment units and 13 single-family houses — 35 residential units in all — with roughly half in California and the other half in the Midwest. The houses have yet to be selected. The study will supplement another Building America project in which the process was tested on new construction. In that research, houses in Minnesota were air sealed before the drywall had been installed. Bohac said the AeroBarrier process reduced air leaks by an average of 75% to 80%, with  average post-process airtightness of 0.7 ach50. Forty percent of the houses were tested at 0.6 ach50 or below. The houses were mostly production homes. The new round of study will help determine whether that kind of success can be translated to existing houses. The most logical time to apply the sealant is when the building is being renovated — no furnishings to worry about, no people, and possibly some open walls. In a test project a few years ago, Bohac said, an early 1900s masonry building was the guinea pig. The building was being divided into smaller units for income-eligible housing and had a leaky envelope testing at 13.4 ach50. The average after sealing was 4.1 ach50, with one unit getting down to 1.4 ach50, an 88% improvement over pre-treatment numbers. Whether AeroBarrier will be useful to seal houses that are complete — unoccupied but not undergoing any renovation — is another question. Cleaning up the sealant is one issue. The sealant doesn’t seem to stick to vertical surfaces, but it will collect on horizontal surfaces, and because it’s sticky it doesn’t sweep off easily. With cleanup in mind, Bohac suggested that a logical time to seal an older house is when it’s already undergoing lead abatement. Another possibility is isolating a single room in the house that’s undergoing renovation and misting just that space. How durable is the seal? The sealant gradually collects at cracks and holes in the building shell, and within a few hours airtightness improves dramatically. UC Davis has been conducting accelerated durability testing in the lab on ducts that have been sealed with Aeroseal, essentially same process, and so far the results are promising, Bohac said. Researchers are finding that duct seals are more durable (showed a slower increase in leaks over time) than ducts sealed conventionally with mastic and tape. Preliminary results on accelerated testing of AeroBarrier seals also show very little increase in leakage. “It’s worked really well for ducts,” he said. “It seems reasonable that it would work well for building envelopes, too.” He continued: “What we’ve been seeing on new construction, it’s not so much the big leaks that are causing the problems, but the narrower leaks that are just kind of ubiquitous — say, the leak between sheathing and the top plate or the bottom plate. There are just hundreds of feet of that kind of gap. Normally, it would be incredibly labor-intensive to seal that kind of leak, but the nice thing is you don’t even have to go around and find them. This approach just finds  them itself.” Another topic of interest will be the potential energy savings. Preliminary number crunching suggestions that an 80% reduction in air leaks could result in a 20% reduction in heating and cooling costs. The solid panel ‘Perfect Wall’ building Another grant recipient is the University of Minnesota, which will look at ways to speed up adoption of a solid panel wall system. The “Perfect Wall” building system yields a “studless” house that is more energy-efficient, tighter, and of higher quality than conventionally built houses, developers said. The idea is that a single contractor uses structural engineered panels to construct a rigid, structural shell before adding insulation, air-control, and cladding on the exterior. The shell consists of two layers of cross-laminated engineered wood sealed with a peel-and-stick membrane in advance of two layers of rigid insulation, a vented rainscreen and cladding. From start to finish, the construction process should take about two weeks. Layers of the studless ‘Perfect Wall’ system developed at the University of Minnesota. Image credit: University of Minnesota The university, in partnership with two affordable housing developers, has built a half-dozen of the houses since 2016 with several more planned this year. Energy modeling predicted a 40% energy savings over Minnesota code-compliant houses, and 30% energy savings over Energy Star Version 3 houses. (Actual performance data is coming in now.) Airtightness of the first Habitat for Humanity house was 0.26 ach50, according to a summary of the project. This new round of Building America funding, about $700,000, will pay for structural testing at the Home Innovations Research Laboratory over the next 2 1/2 years, said Patrick Huelman, associate extension professor and the Cold Climate Housing coordinator at the university. “The primary purpose of the new grant is to nail down the structural behavior of the two-ply panel,” he said by telephone. “It’s just to get all the engineering in place.” Outperforming conventional construction Exterior walls are built with two layers of 1 1/8-inch-thick OSB manufactured by Huber Engineered Woods using essentially the same formula as the company’s well known Advantech sheathing. The first 8-foot by 24-foot panels, each weighing about 750 pounds, are craned into place at the corners of the building. Panels run vertically from the foundation to the roof trusses. Once those are in place, the next course of panels is set horizontally on the inside of the walls and glued and screwed to the corner pieces. Floor trusses set on top edge of the first horizontal course make up the floor system for the second floor. Development of the system dates back to the 1990s, involving not only the university but some outside partners, including a company called Monopath, Huelman said. The idea was to bring down the cost of the structural portion of the house and put more money into water, vapor, and thermal control layers on the outside. “That dollar savings gets invested in the control layers, and when we get all said and done we have a more robust, better wall at approximately the same cost as traditional or conventional construction,” he said. “That was the goal. We aren’t quite there yet.” Huelman has no doubts the houses perform as intended, with one recent example scoring a 39 on the HERS Index (meaning it is 61% more efficient than a comparison code-compliant house). “We’ve knocked that one out of the park,” he said. “It’s just that we have not been able to get enough cost savings in the framing materials and the framing labor to get us back to even.” Completing structural testing and finishing engineering studies could help make the technology appealing to a wider audience and settle any potential misgivings about using relatively thin wall panels to support all the structural loads of a house. Other projects on the funding list The Department of Energy also is funding these projects: Residing: Researchers at the New Jersey Institute of Technology will field test a technique for residing existing homes with graphite-infused rigid insulation combined with a liquid flashing and sealing product, according to the DOE. The project is aimed particularly at houses in Climate Zones 3, 4, and 5. GBA requested details about the project, but a spokeswoman for the institute said no other information about the grant would be made available until the formal start date of the project in late April or early May. The DOE also was unable to provide any further details. Heating and cooling: Steven Winter Associates Inc. will conduct research to develop a new integrated heating, dehumidification, and air conditioning system for high-performance houses. The prototype will provide 1 ton of space conditioning for energy-efficient multifamily dwellings and low-load single-family homes.last_img read more