Aerodynamics and Propulsion Principles Coursework - 2

Aerodynamics and Propulsion Principles - Coursework Example An example of using this technique is Bell X – I which is the first airplane to break the sound barrier. The achievement of this amazing feat, considered impossible until then, is attributed largely to its ‘super thin wings’ (Bell X-I). The supercritical airfoils differ from the conventional airfoils such that they have comparatively flat at the top. Their unique design limits the rise of drag forces even after the critical Mach number is reached. Such airfoils have successfully been utilized in TACT aircraft program run by NASA Dryden Flight Research Center (Cury). The figure shows the above-mentioned control surfaces and the functions they perform. All the control surfaces work on the principle of creating drag for the incoming wind thereby changing the direction of the wind. Due to this change in velocity, a momentum change occurs which causes a force to act on the control surface and the desired movement of the aircraft is achieved this way. The ailerons tilt the aircraft around the longitudinal axis. They are always installed in pairs. The opposite motion of the two ailerons creates a couple which acts on the longitudinal axis to cause the desired motion. Anderson defines static stability in these words â€Å"If the forces and moments on a body caused by a disturbance tend initially to return the body towards its equilibrium position, the body is statically stable†. Hence a statically stable plane will be that aircraft which can maintain a continuous balanced flight with a constant angle of attack. In case of a wind gust causing the angle of attack to increase, the resultant center of pressure (the point where resultant lift force acts) will shift forwards from the center of gravity of the aircraft and a resultant moment will act that will restore the initial position of the aircraft.

Project annual report Research Paper Example | Topics and Well Written Essays - 1250 words

Project annual report - Research Paper Example The most common skin disease treated here is acne. People of every age, especially the teenagers are very prone to this disease (Cohen, 2011). Oncology Our department of oncology delivers comprehensive treatment for cancer for both the adults and children with hematologic malignancies or solid tumours. Our aim is to provide the best possible care to patients,  build a world recognized environment for clinical research and laboratory. Biological, novel drug and immunologic targeted therapies and gene therapies are being intensively studied within the department to determine if these therapies can be used for cancer treatment. Members of the department collaborate with allied health professionals and physicians in related medical specialties for example: the Pain Clinic, Radiology, Psychology and Psychiatry, Infectious Diseases and also all the surgical subspecialties in order to ensure that cancer patients with their families have access to total care for their psychological, physic al, spiritual and emotional needs. The department of oncology diagnosis and treatment of every kind of cancer, including: head and neck tumors, brain tumors, kidney cancer, ovarian cancer, sarcomas melanoma, gynaecological and pancreatic cancer, biliary cancer, neuroendocrine and hepatoma. A few days back, our specialists successfully grafted patient’s brother’s bone marrow into hers. The patient was only a few months old and the doctors were really happy with the outcome as the cancer was in its last stages (Oncology in Minnesota, 2011). Gastroenterology Gastroenterology department provides medical treatment and expert diagnosis for patients with disorders of the liver, gallbladder, oesophagus, pancreas, stomach, small intestine and colon.  Our Gastroenterologists use the most recent endoscopic advances to carry out hundreds of minimally invasive procedures every month. These include sigmoidoscopy, colonoscopy  and state-of-the-art procedures such as endoscopic ul trasound (EUS) capsule endoscopy and  endoscopic retrograde cholangiopancreatography (ERCP). Apart from these services, other innovative procedures and treatments options include: Endoscopic Pancreatic Function Test, Cryoablation for Barrett’s Oesophagus, Endoscopy Therapy for IBD and Extracorporeal and intraductal Lithotripsy. The most common diseases we see in this department are Constipation in children and adults, diverticulitis, diarrhea, helicobacter pylori, gall bladder diseases, iron deficiency anemia, peptic ulcers, ulcerative colitis, nausea and vomiting, sigmoidoscopy and inflammatory bowel disease. A few days back, the department treated a patient who was unable to swallow food and liquid. Initially we could not find the cause but then it came out to be achalasia. In achalasia the oesophageal sphincter muscle does not relax normally. As medications are not an effective we performed a surgery, which fortunately was successful (Department of Gastroenterology & Hep atology, 2011). Pulmonary: We use the radiology department and the path lab for various tests, and X-rays. Radiological tests such as echocardiogram, ventilation perfusion scans, electrocardiogram, and CT scans are performed on these patients for their quick and efficient diagnosis. Several of the blood tests that we carry out are the LFTs