r unit sizes to Selection and ordering data Dime B3-DH13-B Bevel-helical speed reduction gearbox B3

Flender/Flender Gear Units/Bevel-helical speed reduction gearbox B3

rature, humidity, and gas composition (Fig. . Both 2and CO 2concentrations in the surrounding atmosphere can inuence the quality and storage life of many fruits and vegetables. Extensive research on the use of alteredgas conditions started in the 1s with the work of Kidd and West (, Thomas (,and Blackman (. Kidd and Wests discovery of the climacteric and Blackmans studiesof respiration in apples established the basis of modern postharvest physiology (. Respiratory gas exchange is often used as general measure of the metabolic rate of tissues, since respiration has central position in the overall metabolism of plant (part). Measurements of gas exchange were rst conducted in 1 by Kidd on pea and mustard seeds (. Blackman ( was the rst to measure the CO 2production of apple fruits. Thornton ( later measured 2consumption of harvested plant products other than apples. Since the mid-1s gas exchange rates of fresh produce have been measuredextensively under various 2and CO 2atmospheres, temperature, and humidity conditions. These data are used for several postharvest applications, such as the determination of optimum conditions for controlled atmosphere (CA) storage rooms or modied atmo- sphere (MA) packages (see Sec. 2.. There are various ways of measuring gas exchange,but the three methods used most often are: 1.Static method : specic gas composition is generated around an object and the gas ow is closed for specic period of time. Gas composition is measuredat the beginning and end of the period (. 2.Flowthrough method : specic gas composition is generated around an object and the gas composition of the inward and outward ow is measured (. 3.MA method : using package with lm of known 2and CO 2permeability, the equilibrium concentrations that develop are measured. Gas exchange rates canthen be calculated (. 4 DeEll et al. Fig. 1 The inuence of temperature on respiration and fermentation rates of broccoli. Respiration is measured as 2upt