搜索结果: 1-6 共查到“农业工程 mass”相关记录6条 . 查询时间(0.109 秒)
Mass yield of biochar from hydrothermal carbonization of sucrose
HTC wet torrefaction reaction time mixing process liquid
2016/12/9
In this article, the effect of increasing dry matter content and reaction time of hydrothermal carbonization on mass yield of biochar was studied. Carbonization took place in batch experiments in a pr...
单质体非线性锐共振机械变结构同步控制（Variable Structure Synchronization Control for the Single-mass Nonlinear Sharp Resonance Vibration Machine）
非线性 锐共振 变结构 同步控制
2010/12/29
基于双电动机驱动单质体非线性振动机械的动力学模型，推导出双激振电动机的相位差状态空间方程，在系统锐共振(频率比为0.95~1.05)条件下，建立非线性系统的变结构同步控制器，并对同步控制器参数的选取进行了理论推导。仿真结果表明，双激振电动机的变结构控制同步策略比目前广泛应用的传统PID同步控制策略，能更有效地控制由电动机参数差异、外扰等因素引起的同步性误差，改善多电动机同步性能以及非线性系统的振动...
Modeling the mass of Iranian export onion (Allium cepa L.) varieties using some physical characteristics
onion vegetable mass modeling physical characteristics grading
2014/2/26
Mass modeling can be used for development of post-harvest equipment related to onion (Allium cepa L.) processing such as grading, packing and food production processes. There are instances in which it...
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 ...
Dynamic laboratory measurement with dielectric sensor for forage mass flow determination
precision agriculture yield mapping capacitance sensor mass flow grass and forage
2014/2/27
A new parallel plate capacitance sensor was built consisting of two metal sheets. The sensor – a capacitor and the whole oscillating circuit was driven at 27 MHz frequency. Dynamic laboratory experime...
Bio-mass for energetic: Chance or regression?
bio-mass usage renewable energy resources economic evaluation of efficiency investment
2014/3/26
Authors summarise historical aspects of the renewable energy resources usage in the Czech countries, mainly of bio-mass. They are interested in the economic evaluation of the investment efficiency of ...