{"title":"Relly Victoria Petrescu","description":null,"products":[{"product_id":"mechatronics-serial-and-parallel-systems-color-book-relly-victoria-petrescu-9781494241254","title":"Mechatronics - Serial and Parallel Systems - Color","description":null,"brand":"WoB","offers":[{"title":"US \/ NEW \/ INGRAM","offer_id":51167214502161,"sku":"NIN9781494241254","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1494241250.jpg?v=1750956761"},{"product_id":"camshaft-precision-color-book-relly-victoria-petrescu-9781480291034","title":"Camshaft Precision - Color","description":null,"brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51169218199825,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":51169219674385,"sku":"NIN9781480291034","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/148029103X.jpg?v=1751274129"},{"product_id":"camshaft-precision-book-relly-victoria-petrescu-9781481083164","title":"Camshaft Precision","description":null,"brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51171581690129,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":51171582869777,"sku":"NIN9781481083164","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1481083163.jpg?v=1751021117"},{"product_id":"mechatronics-serial-and-parallel-systems-book-relly-victoria-petrescu-9781494241520","title":"Mechatronics - Serial and Parallel Systems","description":null,"brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51171584672017,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":51171586310417,"sku":"NIN9781494241520","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1494241528.jpg?v=1750827441"},{"product_id":"gear-solutions-color-book-relly-victoria-petrescu-9783848267675","title":"Gear Solutions Color","description":"In the first chapter it determines precisely, the dynamics-efficiency, but at the gears transmissions, the dynamics efficiency is the same like the mechanical efficiency; this is a greater advantage of the gears transmissions. This advantage, specifically of the gear's mechanisms, may be found at the cam mechanisms with plate followers as well. In the second chapter one presents shortly an original method to obtain the efficiency of the geared transmissions in function of the contact ratio. With the presented relations it can make the dynamic synthesis of the geared transmissions having in view increasing the efficiency of gearing mechanisms in work. We calculate the efficiency of a geared transmission, having in view the fact that at one moment there are several couples of teeth in contact, and not just one. The start model has got four pairs of teeth in contact (4 couples) concomitantly. The best efficiency can be obtained with the internal gearing when the drive wheel 1 is the ring; the minimum efficiency will be obtained when the drive wheel 1 of the internal gearing has external teeth. For the external gearing, the best efficiency is obtained when the bigger wheel is the drive wheel; when we decrease the normal angle alpha0, the contact ratio increases and the efficiency increases as well. The efficiency increases too, when the number of teeth of the drive wheel 1 increases (when z1 increases). Nearly all the models studied the dynamic on gearing with axes parallel, is based on mechanical models of classical (known) who is studying spinning vibration of shafts gears and determine their own beats and strains of shafts spinning; sure that they are very useful, but are not actually join formed of the two teeth in contact (or more pairs of teeth in contact), that is not treated physiology of the mechanism itself with toothed gears for a view that the phenomena are dynamic taking place in top gear flat; model  1] just try this so, but the whole theory is base","brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51221386985745,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":51221387378961,"sku":"NIN9783848267675","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ NEW \/ INGRAM","offer_id":52663963681041,"sku":"NLS9783848267675","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/3848267675.jpg?v=1751416478"},{"product_id":"new-aircraft-ii-color-book-relly-victoria-petrescu-9783848259854","title":"New Aircraft II Color","description":"The Boeing Vertol CH-46 Sea Knight is a medium-lift tandem rotor transport helicopter. It is used by the United States Marine Corps (USMC) to provide all-weather, day-or-night assault transport of combat troops, supplies and equipment. Additional tasks include combat support, search and rescue (SAR), support for forward refueling and rearming points, CASEVAC and Tactical Recovery of Aircraft and Personnel (TRAP). Canada also operated the Sea Knight, designated as CH-113, and operated them in the SAR role until 2004. Other export customers include Japan, Sweden, and Saudi Arabia. The commercial version is the BV 107-II, commonly referred to simply as the Vertol. The Boeing CH-47 Chinook is an American twin-engine, tandem rotor heavy-lift helicopter. With a top speed of 170 knots (196 mph, 315 km\/h) it is faster than contemporary utility and attack helicopters of the 1960s. The Sikorsky CH-53E Super Stallion is the largest and heaviest helicopter in the United States military. As the Sikorsky S-80 it was developed from the CH-53 Sea Stallion, mainly by adding a third engine, a seventh blade to the main rotor and canting the tail rotor 20 degrees. It was built by Sikorsky Aircraft for the United States Marine Corps. The less common MH-53E Sea Dragon fills the United States Navy's need for long range mine sweeping or Airborne Mine Countermeasures (AMCM) missions, and perform heavy-lift duties for the Navy. Under development is the CH-53K, which will be equipped with new engines, new composite rotor blades, and a wider cabin. The Bell Boeing V-22 Osprey is an American multi-mission, military, tiltrotor aircraft with both a vertical takeoff and landing (VTOL), and short takeoff and landing (STOL) capability. It is designed to combine the functionality of a conventional helicopter with the long-range, high-speed cruise performance of a turboprop aircraft. The V-22 originated from the United States Department of Defense Joint-service Vertical take-off\/landing Experimenta","brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51221655388433,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":51221655585041,"sku":"NIN9783848259854","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ NEW \/ INGRAM","offer_id":52664633098513,"sku":"NLS9783848259854","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/3848259850.jpg?v=1750774401"},{"product_id":"gear-solutions-book-relly-victoria-petrescu-9781467987646","title":"Gear Solutions","description":null,"brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51296833372433,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":51296837435665,"sku":"NIN9781467987646","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1467987646.jpg?v=1751020605"},{"product_id":"grafica-computationala-book-relly-victoria-petrescu-9781482541441","title":"Grafica Computationala","description":null,"brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51603471401233,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":51603471565073,"sku":"NIN9781482541441","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1482541440.jpg?v=1750859703"},{"product_id":"calitatea-transporturilor-book-relly-victoria-petrescu-9781479391660","title":"Calitatea Transporturilor","description":null,"brand":"WoB","offers":[{"title":"US \/ NEW","offer_id":51643794784529,"sku":"NIN9781479391660","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1479391662.jpg?v=1750892075"},{"product_id":"gear-solutions-book-relly-victoria-petrescu-9783848231416","title":"Gear Solutions","description":"Development and diversification of machines and mechanisms with applications in all areas of scientific research requires new systematization and improvement of existing mechanical systems by creating new mechanisms adapted to the modern requirements, which involve more complex topological structures. Modern industry, the practice of engineering design and manufacture increasingly rely more on scientific research results and practical. The processes of robotisation of today define and influence the emergence of new industries, with applications in specific environmental conditions, handling of objects in outer space, and are leading teleoperator in disciplines such as medicine, automations, nuclear energetic, etc. In this context this book attempts to bring a contribution to science and technology applied in the kinematic and dynamic analysis and synthesis of mechanisms with gearings.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":52619842224401,"sku":"NLS9783848231416","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":52779488215313,"sku":"NIN9783848231416","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9783848231416.jpg?v=1761536994"},{"product_id":"northrop-color-book-relly-victoria-petrescu-9783848267989","title":"Northrop Color","description":"The Northrop Grumman (formerly Ryan Aeronautical) RQ-4 Global Hawk (known as Tier II+ during development) is an unmanned aerial vehicle (UAV) used by the United States Air Force and Navy and the German Air Force as a surveillance aircraft. The Northrop Grumman B-2 Spirit (also known as the Stealth Bomber) is an American strategic bomber, featuring low observable stealth technology designed for penetrating dense anti-aircraft defenses; it is able to deploy both conventional and nuclear weapons. The bomber has a crew of two and can drop up to eighty 500 lb (230 kg)-class JDAM GPS-guided bombs, or sixteen 2,400 lb (1,100 kg) B83 nuclear bombs. The B-2 is the only aircraft that can carry large air-to-surface standoff weapons in a stealth configuration. The BQM-74 Chukar is a series of aerial target drones produced by Northrop. The Chukar has gone through three major revisions, including the initial MQM-74A Chukar I, the MQM-74C Chukar II, and the BQM-74C Chukar III. They are recoverable, remote controlled, subsonic aerial target, capable of speeds up to Mach 0.86 and altitudes from 30 to 40,000 ft (10 to 12,000 m). Northrop Grumman Corporation (NYSE: NOC) is an American global aerospace and defense technology company formed by the 1994 purchase of Grumman by Northrop. The company was the fourth-largest defense contractor in the world as of 2010, and the largest builder of naval vessels. Northrop Grumman employs over 75,000 people worldwide. Its 2010 annual revenue is reported at US$34 billion. Northrop Grumman ranks #72 on the 2011 Fortune 500 list of America's largest corporations and ranks in the top ten military-friendly employers. It has its headquarters in Falls Church, Virginia. Separate sectors, such as Aerospace Systems, produce aircraft for the US and other nations. The B-2 Spirit strategic bomber, the E-8C Joint STARS surveillance aircraft, the RQ-4 Global Hawk, and the T-38 Talon supersonic trainer, are used by the US Air Force. The US Army uses Northrop Grum","brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":52656809541905,"sku":"NLS9783848267989","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":52779489788177,"sku":"NIN9783848267989","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9783848267989.jpg?v=1762225910"},{"product_id":"mechanical-engineering-design-i-color-book-relly-victoria-petrescu-9783848266579","title":"Mechanical Engineering Design I Color","description":"In questo lavoro ho cercato articoli pubblicati sull'autoguarigione tra il 2001 e il 2011 in riviste scientifiche nazionali e internazionali. Ho selezionato e discusso ottantanove articoli nel tentativo di colmare il divario tra la scienza e le antiche conoscenze sulla salute. Questi studi vengono presentati alla societ  attraverso questa pubblicazione, consentendo una riflessione e la possibilit  di entrare in contatto con questa antica conoscenza, custodita in ognuno di noi, che attende il momento in cui decidiamo di connetterci con essa.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":52663863312657,"sku":"NLS9783848266579","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9783848266579.jpg?v=1762273115"},{"product_id":"northrop-book-relly-victoria-petrescu-9783848209323","title":"Northrop","description":null,"brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":52674327216401,"sku":"NLS9783848209323","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9783848209323.jpg?v=1762299293"},{"product_id":"lockheed-martin-book-relly-victoria-petrescu-9783848260539","title":"Lockheed Martin","description":"Lockheed Martin (NYSE: LMT) is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area. Lockheed Martin employs 123,000 people worldwide. Robert J. Stevens is the current Chairman and Chief Executive Officer. Lockheed Martin is one of the world's largest defense contractors; In 2009, 74% of Lockheed Martin's revenues came from military sales. It received 7.1% of the funds paid out by the Pentagon. Lockheed Martin operates in four business segments. These comprise, with respective percentages of 2009 total net sales of $45.2 billion, Aeronautics (27%), Electronic Systems (27%), Information Systems \u0026amp; Global Solutions (27%), and Space Systems (19%). In 2009 US Government contracts accounted for $38.4 billion (85%), foreign government contracts $5.8 billion (13%), and commercial and other contracts for $900 million (2%). In both 2009 and 2008 the company topped the list of US Federal Contractors. The company has received the Collier Trophy six times. Most recently (in 2001) for being part of developing the X-35\/F-35B LiftFan Propulsion System, and again in 2006 for leading the team that developed the F-22 Raptor fighter jet. Lockheed Martin is currently developing the F-35 Lightning II. Merger talks between Lockheed Corporation and Martin Marietta began in March 1994, with the companies announcing their $10 billion planned merger on August 30, 1994. The deal was finalized on March 15, 1995 when the two companies' shareholders approved the merger. The segments of the two companies not retained by the new company formed the basis for the present L-3 Communications, a mid-size defense contractor in its own right. Lockheed Martin later spun off the materials company Martin Marietta Materials. Both companies contributed important products to the new portfolio.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":52679375290641,"sku":"NLS9783848260539","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9783848260539.jpg?v=1762310427"},{"product_id":"lockheed-martin-color-book-relly-victoria-petrescu-9783848230730","title":"Lockheed Martin Color","description":"Lockheed Martin (NYSE: LMT) is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area. Lockheed Martin employs 123,000 people worldwide. Robert J. Stevens is the current Chairman and Chief Executive Officer. Lockheed Martin is one of the world's largest defense contractors; In 2009, 74% of Lockheed Martin's revenues came from military sales. It received 7.1% of the funds paid out by the Pentagon. Lockheed Martin operates in four business segments. These comprise, with respective percentages of 2009 total net sales of $45.2 billion, Aeronautics (27%), Electronic Systems (27%), Information Systems \u0026amp; Global Solutions (27%), and Space Systems (19%). In 2009 US Government contracts accounted for $38.4 billion (85%), foreign government contracts $5.8 billion (13%), and commercial and other contracts for $900 million (2%). In both 2009 and 2008 the company topped the list of US Federal Contractors. The company has received the Collier Trophy six times. Most recently (in 2001) for being part of developing the X-35\/F-35B LiftFan Propulsion System, and again in 2006 for leading the team that developed the F-22 Raptor fighter jet. Lockheed Martin is currently developing the F-35 Lightning II. Merger talks between Lockheed Corporation and Martin Marietta began in March 1994, with the companies announcing their $10 billion planned merger on August 30, 1994. The deal was finalized on March 15, 1995 when the two companies' shareholders approved the merger. The segments of the two companies not retained by the new company formed the basis for the present L-3 Communications, a mid-size defense contractor in its own right. Lockheed Martin later spun off the materials company Martin Marietta Materials. Both companies contributed important products to the new portfolio.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":52679682457873,"sku":"NLS9783848230730","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9783848230730.jpg?v=1762311172"},{"product_id":"mechanical-engineering-design-book-relly-victoria-petrescu-9781467913775","title":"Mechanical Engineering Design","description":null,"brand":"WoB","offers":[{"title":"- \/ - \/ INTERNAL","offer_id":53574636077329,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":53574636470545,"sku":"NIN9781467913775","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9781467913775.jpg?v=1779209775"}],"url":"https:\/\/www.worldofbooks.com\/collections\/author-books-by-relly-victoria-petrescu.oembed","provider":"World of Books ","version":"1.0","type":"link"}