滴头

滴灌具有淋洗脱盐作用，即盐分积累到湿润锋附近，滴头下面土壤的含盐量相对较低。

Drip irrigation has the function of taking off salinity , which means that the soil salt content under the water dropper is relatively low as the salts tend to be accumulated at the wetted front .

迷宫滴头CFD分析方法研究

Study on CFD Method for Flow Simulation in Labyrinth Emitter

滴头流道CFD分析的研究进展与问题

Research progress in analysis of flow passage in irrigation emitters using Computational Fluid Dynamics techniques

KD型大流量系列孔口滴头的研制

The Development of Orifice Emitter of Model KD Series with Large Discharge

基于RP技术的滴灌用灌水器滴头的快速定型

Using . Rapid finalization of irrigator dripper in drip-irrigation by virtue of RP technique

基于RP、RT技术的新型滴灌用滴头模具和产品的设计制造

Design and Manufacturing of A New type Drip Irrigation Emitter Mould and Product Based on RP , RT Techniques

应用Matlab软件中的多元线性回归算法对所得试验数据进行了回归分析，得出了8种滴头的压力流量公式和回归曲线图。

Moreover , experimental data are analyzed with multivariable linear regression in MATLAB , formulas of pressure versus flow and regression plots for 8 different emitters are induced from the regression analyses .

介绍了使用CAD技术进行新型内镶式滴灌管滴头的设计，并应用先进的RP、RT技术进行初级产品生产的方法。

The paper introduces a new method that uses CAD techniques to design the new kind emitter and applies advanced RP , RT techniques to produce primary product .

详细论述了根据滴头结构设计生成其结构CAD模型，并应用快速成型制造技术制作滴头原型和其一体化实验原型。

The generation of emitter structural CAD model according to emitter structure design , and the building of emitter prototypes and its integrative experimental model based on rapid prototyping manufacturing ( RP M ) are introduced in detail .

以农用滴灌滴头的模具设计为例，介绍了使用Pro/ENGINEER、RP和RT技术设计制造模具的工艺过程。

According to the design of an agricultural irrigation emitter mould , the paper introduced the process that uses Pro / ENGINEER technique and advanced RP , RT techniques to manufacture mould .

在参考ISO抗堵塞实验国际标准草案的基础上，制定了抗堵塞实验方案，研究了齿形流道结构参数对滴头抗堵塞性能的影响。

Anti-clogging experimental scheme was established on the basis of referring to ISO Anti - clogging experimental scheme which is still under discussion . How these structural parameters affected anti - clogging ability of dentate emitters was studied .

RT技术的应用不仅能更快更好地解决滴头中常见的各种问题，而且还在产品设计制造实践中提高了RP、RT技术的应用水平。

The application of RP , RT techniques can not only solves all kinds of problems in emitter more quickly but also develops applied level of RP , RT techniques during the production of actual production .

再应用快速制模（RT）技术进行滴头快速喷涂模具的制造，用以滴头的试制，使滴头可直接用于节水灌溉实际中。

Then rapid tooling ( RT ) technique is used to manufacture rapid spray mold of labyrinth dripper which can be used in trial production of dripper , thus , making the drippers be directly used in drip irrigation .

研究了大田土壤点源滴灌施肥条件下滴头流量（q）和灌水施肥量（Q）对土壤NH4+-N扩散分布的影响，分析水平和垂直两方向上NH4+-N含量的变化规律。

The experiment was conducted to investigate the influence of dripping end flow and irrigation volume on the distribution pattern of NH_4 ~ + - N in soil , and to analyze the change rules of NH_4 ~ + - N concentration in horizontal and vertical directions .

将一种基于改进PSO最小二乘支持向量机的预测模型引入滴灌滴头水力性能预测领域。

Drip irrigation emitter will have optimal hydraulic performance when MDO is integrated with virtual prototyping technique to optimize the design parameters of emitter . ( 2 ) A novel prediction model based on modified PSO least square support vector machine is proposed .

得出了利用微咸水滴灌能在滴头附近形成一个较高含水率，且含盐量较低的区域（0～15cm），能为作物提供一个良好的水盐环境。

The use of brackish water can form a high moisture content and low salinity region near the drip irrigation emitter , which can provide a good crop of salt-water environment . 2 .

结果：最佳成型工艺为贮药槽药液高度3cm、滴头温度80℃、滴距5cm、冷凝液温度15℃。

Results The optimum forming technics could be seen as follows , the height of the drug storage tank was 3 cm , the temperature of drops was 80 ℃, the dropping distance was 5 cm and the temperature of the liquor condensate was 15 ℃ .

基于快速成形技术滴头的结构试验研究

Experimental Study of the Water-Saving Emitter Structure Based on Rapid Prototyping

迷宫流道滴头抗堵塞试验研究初探

The Research on Anti - clogging Performance of Drip emitters TESTING

点源滴灌滴头流量与湿润体关系研究

Relationships between dripper discharge and soil wetting pattern for drip irrigation

葡萄滴灌系统中毛管及微管滴头的设计

Design of lateral and micro-pipe emitters in drip irrigation system for grapes

迷宫式滴头内流动的有限元数值分析

Numerical Simulation of Flows inside a Drip Faucet by Finite Element Method

点源滴灌滴头流量设计模式的试验研究

Experimental Research about Dripper Discharge Design Mode for Point Source Drip Irrigation

滴头堵塞研究现状及预防措施

Research on the Clogging of Dripper and Measure of Prevention

RP/RT技术在迷宫型滴头快速研制中的应用

Application of RP / RT Technique in Rapid Development of Labyrinth Dripper

试论我国滴头性能技术指标和结构型式的选择问题

The Selection of Dripper 's Technical Performance Parameters and Structure in China

微灌滴头设计工作压力取值理论研究

Theory on the calculation of operation pressure of micro-irrigation emitters

提出将多学科设计优化思想应用到滴头产品的设计，实现滴灌滴头产品的优化设计。

Multidisciplinary design optimization idea is proposed for drip irrigation emitter design .

滴头堵塞及其机理的初步试验研究

Preliminary investigation of the emitters blockage and its mechanism

压力补偿滴头流道流场的数值模拟与补偿元件分析

Pressure Compensating Emitter Numerical Simulation of Flow Field and Analysis of Compensation Component