摘要:
Monitoring and dosing systems for dosing additives to water in aquatic environments, such as aquariums, swimming pools, hot tubs, and ponds, to maintain the quality of the water within tolerances and/or to control other aspect of the aquatic environment, such as controlling the growth rates of flora and/or fauna in the aquatic environment. Some monitoring systems disclosed include chemical indicator apparatuses submerged in the water and having multiple immobilized-dye-based chemical indicators for detecting the levels of multiple constituents of the water that contribute to water quality. Corresponding monitoring/measuring units include one or more optical readers for acquiring readings of the chemical indicators. Dosing can be performed automatedly and/or in an assisted manner via a dosing calculator and appropriate support systems. A variety of robustness features are also disclosed that can be used to assist the systems in ensuring that measurement readings are as accurate as possible to avoid improper dosing.
摘要:
The present invention relates to an oxygen indicator, wherein the presence or absence of oxygen is made visible by a color change, and to the use of such an oxygen indicator to monitor parenteral and enteral modes of administration.
摘要:
A method for testing the performance of catalysts used for conversion of FCC regenerator gases comprises subjecting the catalyst simultaneously to a mixture of gases including an oxidizing gas and a reducing gas in more than one cycle in which the ratio of the oxidizing gas to the reducing gas varies over the time of the cycle. Test gases comprising O2, CO, CO2, steam, nitrogen-containing gases and sulfur- containing gases in which the ratio of O2 to CO varies over time for each cycle and in which the products of combustion formed during each cycle can be measured periodically over the cycle yields important data on the usefulness of the catalysts for treatment of regenerator flue gas.
摘要:
Formats for the optical testing of fluids are manufacturing using modular format components. The format components are constructed so that matching format components can be mated together to form a single format for optical testing. Formats may be manufactured using pin-and-hole construction so that pins on optical format components mate with holes on opposing format components. Optical read surfaces provided on optical format components oppose each other in a completed optical format to form a read area.
摘要:
The present invention relates to compositions comprising a core and a hydrophobic coating material surrounding the core. The core comprises at least one oxygen-sensing particle. The present invention also relates to methods of detecting and monitoring oxygen in a sample using the microencapsulated oxygen-sensing particles.
摘要:
Apparatus which employ (5) luminescence quenching for measuring the concentration of a gas, such as oxygen, in a mixture, such as respiratory gases. Components of such systems include: (1) an airway adapter (101), a sampling cell (102), and a sensor (104) which is excitable into luminescence and is quenched in a manner reflecting the concentration of one or more analyzed gases within the sampling cell; (2) a transducer (105) with a source (106) configured and oriented to excite a luminescable composition in the sensor into luminescence, and a detector (110) for converting energy emitted from the sensor into an electric signal; and (3) subsystems (114) for maintaining the temperature of the sensor at a substantially constant level and to prevent condensation from hindering the detection of energy emitted form the sensor, as well as for processing the signal generated by the detector.
摘要:
The present invention relates to a method and apparatus for determining blood oxygen transport, and to measure lipid levels by correlating these levels with the rate at which oxygen diffuses through the red blood cell membrane.