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The presence of moisture, such as in steam sterilization, significantly speeds up heat penetration. There are two types of hot air convection (Convection refers to the circulation of heated air within the chamber of the oven) sterilizers: Gravity convection; Mechanical convection
A vacuum pump sucks air or air/steam mixtures from the chamber. Superatmospheric cycles: Achieved with a vacuum pump. It starts with a vacuum followed by a steam pulse followed by a vacuum followed by a steam pulse. The number of pulses depends on the particular autoclave and cycle chosen. Subatmospheric cycles:
Project Pigeon was briefly revived by the Navy in 1948 as "Project Orcon," but it was again cancelled in 1953 when the reliability of electronic guidance systems was proven. Skinner was awarded the 2024 Ig Nobel Peace Prize for his work on the project; his daughter Julie Vargas , who received the award in his stead, is quoted as saying, "I want ...
Soil steam sterilization (soil steaming) is a farming technique that sterilizes soil with steam in open fields or greenhouses. Pests of plant cultures such as weeds, bacteria, fungi and viruses are killed through induced hot steam which causes vital cellular proteins to unfold .
Aquarium and pond sterilizers are typically small, with fittings for tubing that allows the water to flow through the sterilizer on its way from a separate external filter or water pump. Within the sterilizer, water flows as close as possible to the ultraviolet light source. Water pre-filtration is critical as water turbidity lowers UV-C ...
This method is a faster process than dry heat sterilization. Steam sterilization is performed using an autoclave, sometimes called a converter or steam sterilizer. The object or liquid is placed in the autoclave chamber, which is then sealed and heated using pressurized steam to a temperature set point for a defined period of time.
The figurine represents a soldier in the act of releasing a pigeon that carries an oversized pigeon camera. [28] Thanks to research conducted by the Musée suisse de l'appareil photographique at Vevey, much more is known about the pigeon cameras developed at about the same time by the Swiss clockmaker Christian Adrian Michel (1912–1980) [29 ...
Bird fancier's lung (BFL), also known as bird breeder's lung, is a type of hypersensitivity pneumonitis.It can cause shortness of breath, fever, dry cough, chest pain, anorexia and weight loss, fatigue, and progressive pulmonary fibrosis (the most serious complication).