Studies on PCAD in certain countries may vary relevant to the populations studied, and the data on PCAD available in Iraq is scarce. Patients with PCAD belong to a particular subgroup that needs much more attention since its impact on individuals, families and the society is devastating. Clinical studies have affirmed that patients with PCAD have a different clinical presentation, associated CAD risk factors, and coronary angiographic profile compared with the MCAD. The PCAD is defined, in various studies, as having an age of onset ranging from 30 to 56 years. It is estimated that about 4–10 % of individuals with documented CAD are less than 45 years. Nowadays, however, it’s often encountered by young adults. CAD is a disease usually found in the old. But the angiographic profile and therapeutic options of PCAD are close to those reported from previous studies.Ĭoronary artery disease (CAD) is a major cause of morbidity and mortality worldwide. Cardiovascular risk factors are clustered among them. Premature coronary artery disease is alarming in the country.
Patients were divided into PCAD (male 70 % compared to lesser obstruction. Methodsĭata was collected from a total of 445 adult patients undergoing coronary angiography at Duhok Heart Center, Kurdistan in a period between March and September 2014. Given the lack of such studies in the country, this study examines the prevalence, associated cardiovascular risk factors, and coronary angiographic profile of the disease in Iraq.
#How to use pcad 2006 reports full
The primary requirements for studies were a power level of 100 kWe (to the PPU), a low overall more » power system mass (with a target of less than 3000 kg), and a lifetime of 15 years (10 years full power).Premature coronary artery disease (PCAD) seems to increase, particularly in developing countries. The conceptual design effort performed included BPCS (Brayton power conversion system) trade studies to minimize system weight and radiator area and advance the state of the art of BPCS technology. The studies described in this paper were performed under one of those contracts, which was to investigate the use of a nuclear power conversion system based on the closed Brayton cycle (CBC). To investigate and mature space based nuclear power conversion technologies NASA awarded several contracts under Prometheus, the Nuclear Systems Program. = or MgO, has the advantage of a density almost as low as MgO without being hygroscopic, and shares comparable neutronic performance characteristics in the reflector application. Surface mission requirements may be different enough to warrant different reactor design approaches and development of a generic multi-purpose reactor requires substantial sacrifice in performance capability for each mission. There is very little national infrastructure available for fast reactor nuclear testing and more » associated materials development and testing. Fuel and material performance beyond the current state of the art is needed.
Therefore concurrent design, development and testing would be needed to deliver a functional reactor system.
The mission requirements for the envisioned NEP missions cannot be accommodated with existing reactor technologies. Prior to restructuring of the program, substantial progress had been made on defining reference plant operating conditions, defining reactor mechanical, thermal and nuclear performance, understanding the capabilities and uncertainties provided by material alternatives, and planning non-nuclear and nuclear system testing. The work performed subsequent to this selection included preliminary nuclear reactor and reactor plant design, development of instrumentation and control techniques, modeling reactor plant operational features, development and testing of core and plant material options, and development of an overall project plan. After a review of all reactor and energy conversion alternatives, a direct gas Brayton reactor plant was selected for further development. The work centered on a 200 kWe electric reactor plant with a 15-20 year mission applicable to nuclear electric propulsion (NEP). The Naval Reactors Program led work on the development of a reactor plant system for the Prometheus space reactor program.
0 kommentar(er)
