Investigao de uma nova tecnologia de propulso espacial em condies criognicas by-image

Investigao de uma nova tecnologia de propulso espacial em condies criognicas by

$ 32.12

Publication Name: NA Book Title: Investigao de uma nova tecnologia de propulso espacial em condies Language: Does not apply Format: Paperback ISBN-13: 9786207955534 Type: NA gtin13: 9786207955534 Author: Guillermo Gallego Chacn ISBN: 9786207955534

Description

Investigao de uma nova tecnologia de propulso espacial em condies criognicas by Guillermo Gallego Chacón Estimated delivery 3-12 business days Format Paperback Condition Brand New Description À medida que a tecnologia aeroespacial avança, surgem novos desafios que têm de ser geridos e resolvidos para tornar possíveis as futuras missões de exploração espacial. Este projeto aborda o armazenamento eficiente a longo prazo do propulsor criogénico. Atualmente, a tecnologia disponível não está suficientemente desenvolvida para garantir o isolamento térmico durante toda a missão, que pode ser de meses ou mesmo anos. É um facto adquirido que o propulsor se perderá devido à ebulição. Assim, as bolhas geradas pela ebulição têm de ser controladas porque podem ser perigosas em diferentes fases da missão e para evitar a perda de milhares de litros de propulsor. Uma das tecnologias propostas pelo laboratório de Microgravidade da UPC para controlar e eliminar as bolhas baseia-se na utilização de ondas acústicas ultra-sónicas, criadas por dispositivos piezoeléctricos. A pesquisa de um bom material piezoelétrico para este fim revela-se um desafio. Mas, se esse material fosse encontrado, poderia ser utilizado em futuras missões espaciais. Details ISBN 6207955536 ISBN-13 9786207955534 Title Investigao de uma nova tecnologia de propulso espacial em condies criognicas Author Guillermo Gallego Chacón Format Paperback Year 2024 Pages 52 Publisher Edicoes Nosso Conhecimento GE_Item_ID:161449885; About Us Grand Eagle Retail is the ideal place for all your shopping needs! With fast shipping, low prices, friendly service and over 1,000,000 in stock items - you're bound to find what you want, at a price you'll love! Shipping & Delivery Times Shipping is FREE to any address in USA. Please view eBay estimated delivery times at the top of the listing. Deliveries are made by either USPS or Courier. We are unable to deliver faster than stated. International deliveries will take 1-6 weeks. NOTE: We are unable to offer combined shipping for multiple items purchased. This is because our items are shipped from different locations. Returns If you wish to return an item, please consult our Returns Policy as below: Please contact Customer Services and request "Return Authorisation" before you send your item back to us. Unauthorised returns will not be accepted. Returns must be postmarked within 4 business days of authorisation and must be in resellable condition. Returns are shipped at the customer's risk. We cannot take responsibility for items which are lost or damaged in transit. For purchases where a shipping charge was paid, there will be no refund of the original shipping charge. Additional Questions If you have any questions please feel free to Contact Us. Categories Baby Books Electronics Fashion Games Health & Beauty Home, Garden & Pets Movies Music Sports & Outdoors Toys

  1. The basket is perfectly what I ordered and as listed. It came in the factory packaging and was perfect upon delivery. Thank you postal service lol. The delivery took way longer than listed though, it was listed to come in a week from purchase, but took a whole month. I had some concerns at first, but communication with the company was top notch and they were very professional and answered most of my questions satisfyingly. Just prepare for a longer wait than listed, but I got what I bought lol.

    coalmineedbb

  2. Leaving positive feedback because 1) item was packed well & arrived as described 2) seller did give partial refund when subsequent price dropped below org purchase price. 3) communication was quick However, there was a downside to this transaction -item listed as in-stock but ended up waiting nearly a month for them to get it from their distributer then ship it to me (bought June 29th, arrived around July 21). Auction said 12-15 days. Better clarity would have prevented lot of frustration

    omar fadl415

  3. The seller was very responsive and answered me on a timely matter. The product itself came in its packaging and was new, not used at all. The packaging was not beat up or anything, safely delivered to my mailbox. No mix ups and zero stress with delivery. The price for the product is completely understandable for the product. I really appreciate the seller and I am very happy to have purchased through this seller. Completely trustable!

    Kamlendra Chauhan

Related products