first_imgGelifluction, thixotropy and yield stress were measured from < 5 g soil samples taken from Signy, Alectoria, Greenwich, Wiencke and Livingston islands in the maritime Antarctic using a temperature-controlled rotational rheometer. The small sample size that this method permitted is compatible with sampling from sensitive sample locations. An oscillating 10 Pa shear stress was applied to samples at -0.5 kPa water potential. Two freeze-thaw cycles had temperature ramps from 5°C to -10°C over 2 h, followed by -10°C to 5°C over 2 h and finally at 5°C for 1 h. At freezing onset, the shear modulus, G, dropped to 4–50 per cent of thawed G, with no differences between locations. At thawing onset, G dropped to 8–32 per cent of thawed G, with significant differences between locations (P < 0.001). Thixotropy was then measured by applying a 2 kPa oscillating shear stress for 10 min, followed by relaxation at 10 Pa for 2 h. The increased shear stress caused G to drop to less than 8 per cent of the pre-stressed value, with no difference between locations. After 0.1 and 2 h, G was 18–65 per cent and 31–82 per cent of the pre-stressed value, respectively. A shear ramp determined yield stresses ranging from 494–2217 Pa. These findings demonstrate the potential risk of more frequent freeze-thaw cycles or the occurrence of thawed soil to the stability of polar soils. Gelifluction through more frequent freeze-thaw cycles could result in increased slope movement, whereas thixotropy caused by trampling of thawed soils could exacerbate mechanical damage of surface soils.last_img read more

first_imgNotus Heavy Lift Solutions has entered the US offshore wind market with the launch of an office in New York.According to Notus Heavy Lift Solutions, the venture is a result of several trips to the US which led to multiple client engagements in the North American region and provided the platform for expansion.The company said that due to the levels of interest it will also look to open a second office in Boston in the near future.“With the many years of inhouse experience and expertise Notus Heavy Lift Solutions has gained within the EU Offshore Wind Industry, we are in a strong position to add significant value and contribute to the burgeoning US offshore wind sectors,” Notus Heavy Lift Solutions Managing Director, Wesley Walberg, said.“Our primary focus will be to provide the correct level of support at an accelerated pace to overcome the steep learning curve that the US sector finds itself in. We are best positioned to support the US market in this way, ensuring future success whilst providing relevant local content and expertise along this exciting journey.”In addition, the company’s newly appointed Head of Global Sales, Richard Probert, will be involved in the US business, although the position has not been disclosed.In regard to offshore wind projects, the UK-based Notus Heavy Lift Solutions has worked on several domestic projects including the Lincs, Teesside, West of Duddon Sands, Gwynt y Môr and Westermost Rough wind farms.Several US East Coast states have recently committed to developing over 8GW of offshore wind capacity by 2030, with New Jersey leading the pack with a 3.5GW target, followed by New York’s 2.4GW commitment.Massachusetts aims at adding 1.6GW, with Maryland committing to two projects with a combined capacity of some 368MW. Connecticut’s recently issued Request for Proposals (RfP) pushed the overall offshore wind target over the 8GW mark.last_img read more

first_img“I think this throws a bit of a shadow, it shows an overly individualistic side. If other situations like this happen the situation could degrade,” he told AFP.Globoesporte.com went further, calling it a “war of egos.”“It’s clear these two players don’t get on,” the site said. Share on: WhatsApp Cavani and Neymar on the penalty spotRio de Janeiro, Brazil | AFP | Brazil’s media on Monday dubbed the spat between Paris Saint-Germain stars Neymar and Edinson Cavani over who should take a penalty kick during their victory against Lyon “a war of egos.”Newspapers in Brazil, always hungry for Neymar news, dived into the tussle in which the recently signed PSG superstar tried to take the ball from his Uruguayan teammate on Sunday. Cavani kept the ball but had his shot saved in what was ultimately a 2-0 win.“Neymar and Cavani argue again,” O Dia’s headline read, referring to another penalty incident during PSG’s 6-2 win over Toulouse on August 20 — Neymar’s first home game with the French side after transferring from Barcelona.“The result allowed Neymar’s team to remain leaders but what caught the attention was the poor understanding between the Brazilian and Cavani,” O Globo daily said.Ledio Carmona, a commentator for Sport TV, which broadcasts Ligue 1 games, said Neymar risks estranging himself from his new teammates if he keeps “playing selfishly.”last_img read more

first_img24 Jul 2015 Moore celebrates five shot Carris Trophy victory What a difference a year makes. Twelve months ago Derbyshire’s Bradley Moore lost a play-off for the Carris Trophy. Today he’s celebrating a five shot victory in the championship at Little Aston Golf Club.He completed the English boys’ open stroke play championship on eight-under par, signing off with a two-over par 74 – compiled in a continuous downpour – and was five clear of the runner-up, John Axelsen of Denmark.Sharing third place on level par were Portugal-based Nathan Brader and Jonathan Goth-Rasmussen, who soared up the leaderboard with a closing 67, the low round of the day. Also in the prizes were fifth placed John Gough (Stoke Park) and Harry Hall (West Cornwall) who was sixth.Last year, Bradley Moore (Kedleston Park) lost this title to a good friend, which eased the disappointment, but the championship was high on his hit list for 2015. “I definitely wanted to come here and show I could win,” he said.“It also means a lot because it’s my last year in boys’ golf and I wanted to get a big boys’ win,” added Moore (Image © Leaderboard Photography).He led from start to finish, opening with rounds of 69, 72 and yesterday’s course record 65 which gave him a lead of seven shots going in to the final round. “It was that round which gave me the opportunity,” he said.“I didn’t hit the ball great today, I don’t know why, it was just one of those days, but I managed to get it round in a winning score.”John Axelsen, who won last year’s U16 McGregor Trophy, is a formidable player, and Moore was well aware that he might charge at him. “John is capable of going low if the putts drop for him,” he said.The Danish player had some impressive shots, for example driving the 317-yard fourth hole, and he twice narrowed the gap to four shots. But each time Moore regained the momentum, helped by birdies on the ninth and 13th – both short holes.He also demonstrated some excellent short game skills, with some crucial up and downs, including two from bunkers.“This gives me confidence going into the English amateur next week, then the European amateur and then straight to the British boys,” said Moore as he outlined his busy schedule.The 17-year-old has been England’s top boy golfer for the past two years and, as well as adding the Carris Trophy to his CV, he also won the Malcolm Reid Salver for the best aggregate score in this championship and in the Peter McEvoy Trophy, in which he was runner-up.The U16 trophy, the Hazards Salver, was shared by England’s Jake Benson (Beeston Fields), Italy’s Adalberto Montini and Sweden’s Hugo Townsend, who all finished on six-over par.Benson, 16, was two behind at the start of the final round and scored one-over 73 to tie, achieving his target for the week. Crucially, he got up and down from a fairway bunker on the 18th and he said: “I knew I needed to do it to have a chance.”Click here for full scores.last_img read more