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Valves

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Natural gas and liquefied natural gas (LNG) continue to grow as a part of the sustainable energy mix. While oil and gas companies look to lower emissions, one key refinery component that contributes up to 60% of emissions are valves, mainly due to poor design, sealing, and testing. Cryogenic Valves for Liquefied Natural Gas Plants delivers a much-needed reference that focuses on the design, testing, maintenance, material selection, and standards needed to stay environmentally compliant at natural gas refineries.

Natural gas pipelines --- Valves --- Valves.

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As the diagnostic and therapeutic tools for the management of complex cardiac valve disease continue to evolve, the options for patients who previously had few choices continue to expand. Such advances have resulted in a renaissance in how Heart Teams approach problems and have been able to engage patients in shared decision-making conversations towards a common goal. While opportunities exist in the management of physiologically challenging congenital heart disease, the vast explosion of research and development in the area of aortic valve disease has offered new hope to patients for improving their quality and quantity of life. The goal of this text is to hopefully serve as a foundation for those who want to explore such topics in greater detail.

Heart valves --- Diseases.

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Industries that use pumps, seals and pipes will also use valves and actuators in their systems. This key reference provides anyone who designs, uses, specifies or maintains valves and valve systems with all of the critical design, specification, performance and operational information they need for the job in hand. Brian Nesbitt is a well-known consultant with a considerable publishing record. A lifetime of experience backs up the huge amount of practical detail in this volume.* Valves and actuators are widely used across industry and this dedicated reference provides all the informati

Valves. --- Valves --- Actuators. --- Actuators --- Automatic control --- Steam-pipes

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Currently, aortic stenosis is the most frequent heart valve disease in developed countries and its prevalence increases with the aging of the population. Affecting 3-5 percent of persons older than 65 years of age, it makes a large personal and economical impact. The increasing number of elderly patients with aortic stenosis brings advances in all medical specialties dealing with this clinical entity. Patients previously considered too old or ill are now indicated for aortic valve replacement procedures. This book tries to cover current issues of aortic valve stenosis management with stress on new trends in diagnostics and treatment.

Aortic valve. --- Valva aortae --- Heart valves --- Endocrinology