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Oxytetracycline
| Fisheries glossary |
- An antibiotic which is injected in a fish to leave a mark on its skeletal structures such as otoliths. when the fish is later recaptured, the mark left can be used to validate age estimates.
- An antibiotic which is effective against a wide range of organisms
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Antibiotic, английский
- Antibiótico
- A drug which is developed from living substances and which stops the spread of bacteria, e.g. penicillin he was given a course of antibiotics. antibiotics have no effect against viral diseases. comment: penicillin is one of the commonest antibiotics, together with streptomycin, tetracycline, erythromycin and many others. although antibiotics are widely and successfully used, new forms of bacteria have developed which are resistant to them.
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Dead zone, английский
- An area in an ocean or large lake where oxygen levels are extremely low, often due to eutrophication. dead zones have been increasing since the 1970s.
- Zone in the test part directly underneath the sound entry surface where discontinuities cannot be detected; caused by the finite length of the initial pulse, ringing time of the transducer element, and/or electronic characteristics of the instrument.
- Interval following the initial pulse at the surface of a test object to the nearest inspectable depth. any interval following a reflected signal where additional signals cannot be detected.
- Интервал после первоначального импульса на поверхности объекта контроля до ближайшей контролируемой глубины. любой интервал после отраженного сигнала, где дополнительные сигналы не могут быть обнаружены.
- In ultrasonic testing, interval following the initial pulse at the surface of a test object to the nearest inspectable depth.18 any interval following a reflected signal where additional signals cannot be detected.
- Interval following the initial pulse at the surface of a test object to the nearest inspectable depth.21 any interval following a reflected signal where additional signals cannot be detected.7 558 ultrasonic testing decibel (db): logarithmic unit for expressing relative signal power, such as the loudness of a sound, in proportion to the intensity of a reference signal. one tenth of a bel. decibel in signal amplitude is twice that in signal power.16 one decibel equals ten times the base ten logarithm of the ratio of two powers.
Simulation, английский
- An analysis that shows the production and harvest of fish using a group of equations to represent the fishery. it can be used to predict events in the fishery if certain factors change. see population dynamics.
- Equipment, electronic countermeasures имитатор электронных помех
- Моделирование; имитация
- Моделирование; копирование
- Programs electronically substitute media for the actual experience, but may be coupled with hands-on devices that help the learner to experience physical movement.
- Расчетная кривая
- The vice of counterfeiting illness or defect, for the purpose of being invalided.
- Моделирование
- An unobtrusive scientific method of inquiry involving experiments with a model rather than with the portion of reality this model represents (->representation). simulation is unobtrusive because it does not disturb the object of inquiry (except perhaps when an actor applies its results). inasmuch as all information provided by a simulation is already contained in the model, simulation is useful primarily when the model is no longer tractable by algebraical techniques. this becomes particularly important with large numbers of equations built into the model, with large numbers of parts interacting within the model, with large numbers of paths that need to be traced simultaneously and with large numbers of iterations required to approximate the results.
- The games subcategory containing games that simulate an experience, for example, microsoft flight simulator.
- Modeling the behaviors and conditions of the real world. soc - system on a chip. a single integrated circuit that integrates all or most components of a computer including cpu, memory, i/o and bus. may including devices such as wireless modems. contrast with motherboard-based pc architectures. examples of socs include apple m1, snapdragon, and armxxx chips.
- The use of a mathematical model to imitate a situation many times in order to estimate the likelihood of various possible outcomes. see: monte carlo simulation.
- A broad collection of methods used to study and analyze the behavior and performance of actual or theoretical systems. simulation provides a mechanism for predicting computationally useful functional properties of systems, including thermodynamic, thermochemical, spectroscopic, mechanical, and transport properties.
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