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Some causes of differences in the NH3 concentration measured with the semiconductor sensors by one manufacturer
load resistence sensor resistence air humidity continuous NH3 monitoring
2016/12/9
The paper deals with continuous monitoring of NH3 desorption from material used as bedding in animal breeding establishments, using five semiconductor sensors SP-53 (FIS Inc.). In lab experiments, two...
基于温度—含氧量的全自动堆肥通风控制系统设计（Design of Temperature/Oxygen Concentration-based Aeration Control System for Aerobic Composting）
堆肥 通风 温度 含氧量
2009/8/11
采用工业计算机和下位机的监测控制方式，开发了基于温度-含氧量的全自动堆肥通风控制系统，并实现了软硬件的配套设计。运行试验表明：采用该工艺堆肥，时间一般为2周，高温期（55～65℃）可维持9d以上，能有效杀灭病原微生物，产品稳定性好；可在整个堆肥过程中实现自动在线监控堆体温度、含氧量和湿度，运行稳定。
低温气调贮藏下氧气含量对双孢蘑菇品质的影响（Effects of Oxygen Concentration on Storage Quality of Agaricus bisporus under Low Temperature and Controlled Atmosphere Storage）
双孢蘑菇 气调贮藏 氧含量 贮藏品质
2010/5/5
研究了在3℃低温和95％相对湿度的气调条件下，贮藏环境中O2含量对双孢蘑菇采后贮藏品质的影响。结果表明，体积分数为5％的低氧含量能够有效地抑制双孢蘑菇的呼吸强度，并延迟呼吸高峰的出现；随着贮藏环境中O2含量的降低，双孢蘑菇的失重减少、褐变程度降低、软化速度减缓；低氧含量能够使双孢蘑菇保持较高的可溶性固形物含量，延缓其成熟。 The effects of oxygen concentration o...
密闭空间药雾质量浓度分布试验（Research on Visualization of Pesticide Mass Concentration in Airtight Awning Space）
密闭空间 药雾质量浓度 三次样条插值 可视化
2010/2/26
运用改进后的大气采样器对棚室内距地面1.5m高水平面上不同位置采样，将采样后得到的药雾质量浓度采用三次样条函数插值法建立药雾质量浓度分布曲面。对分布曲面分析表明：沿棚室长度方向上，喷头前方10～12m区间中药雾质量浓度最大，烟雾机作业的有效区域为喷头后方10m、前方32m，共42m；宽度方向上，药雾质量浓度中间低，两侧高。In order to solve the problem of mass ...
Research of biological agents effects on reduction of ammonia concentration in stables of intensive farm animals breeding
ammonia emissions living environment slurry pigs poultry
2014/2/28
In the study are presented results of experiments using bio-technological agents Amalgerol, Bio-Algeen G-40 and Biostrong 510 in intensive pig, poultry breeding and cattle slurry treatment for ammonia...
Globalisation and concentration in the Czech agro-food sector
agro-food sector agro-food market globalisation concentration market power
2014/3/27
The processes of globalisation and concentration have been also penetrating into the Czech agro-food sector and market. Utilising information from foreign sources and developed countries, the paper tr...