sapwood

Aims Water consumption of single trees can be estimated by measuring the sap flow rate in trunk sapwood.

利用热扩散式边材液流茎流探针(TDP)和微型自动气象站组成的测定系统,对泰山林科院林场麻栎(Quercus acutissima)人工林树干不同高度边材液流及其相关环境因子进行了连续观测,对影响边材液流的主要环境因子进行了相关性和滞后效应分析。

The sap flow fluctuations of them were measured continuously by means of Granier s thermal dissipation probe(TDP) method in early summer of 2007.

运用Granier热扩散式探针(TDP)法对宁夏河东沙地主要乔木树种白榆(Ulmus pumila)和新疆杨(Populus alba)夏初边材液流变化规律进行连续观测。

By means of Granier′s thermal dissipation probe(TDP) method,sap flow fluctuations of P.

运用Granier热扩散式探针(TDP)法对青海大通黄土高寒区主要针叶树种青海云杉Picea crassifolia和华北落叶松Larixprincipis-rupprechtii夏季边材液流变化规律进行连续观测,利用自动气象站对周围气象因子太阳辐射(Rs)、空气温度(Ta)、空气相对湿度(RH)和风速(Ws)进行同步观测,并对气象因子与青海云杉、华北落叶松边材液流通量(Fs)的相关性进行分析。

Relations between sap flow velocity (SFV) and environmental factors, such as solar radiation intensity, air temperature, air humidity, wind speed and soil temperature, were also analyzed.

利用树干边材液流探针(TDP)和微型自动气象站对北京西山地区侧柏人工林树干秋季不同高度、不同方位、不同径阶边材液流及相关环境因子日周期变化动态进行连续观测,对环境因子与边材液流速率的相关性进行分析。

In order to coordinate this contradiction, Sap Flow Velocity of Pinus tabulaeformis and Platycladus orientalis, and coherent environmental factors were synchronously monitored for one year in Beijing Western Mountains by using TDP systems (TDP-30) .

为此，本篇论文以北京市水源保护林主要造林树种油松和侧柏为研究对象，利用热扩散式边材茎流测定系统和自动气象站对北京西山地区油松和侧柏林木的边材液流及其环境影响因子进行了为期一年的连续同步监测，在树干边材液流活动规律分析的基础上，对其环境影响因子进行综合评价，找到了树干边材液流年变化过程中影响液流年启动、年停止、瞬态变化、日平均值变化和月平均值变化的主导环境因子，并建立了相应边材液流速率的简易环境因子制约模型。

The sap flow velocity of Platycladus orientalis and meteorological factors such as solar radiation,air temperature and air moisture were synchronously measured with thermal dissipation probe systems and an automatic weather station in spring.

利用热扩散式边材液流测定系统和自动气象站对春季侧柏边材液流速率和太阳辐射、空气温湿度等气象因子进行了为期一年的同步测定。

Sap Flow Flux of Main Forest Types in Eastern Region of Northeastern China;

东北东部山区主要林型树木边材液流通量研究

Analysis on Sap Flow Time Lag Effect of Platycladus orientalis in Spring

春季侧柏树干边材液流的滞后效应分析

Sap Flow Changes of Picea crassifolia and Larix principis-rupprechtii and Relation to Environmental Factors in Loess Alpine Area

青海云杉、华北落叶松边材液流变化规律及其与气象因子的关系

The mathematical model and numerical calculation of relevant boundary-layer in solid-liquid two-phase flow;

固液两相流动边界层的数学模型及流场计算

Research Based on Boundary Layer Theory on the Centrifugal Pump for Solid-liquid Two-phase Fluids;

基于边界层理论的离心式固液两相流泵的研究

Analysis of micro flow in a single plateau border and its application to the drainage process of aluminum foam

单条Plateau边界中微流动分析及其在液态泡沫铝析液研究中的应用

Test of compatibility between rubber material and hydraulic fluid

GB/T14832-1993橡胶材料与液压流体的相容性试验

Contrastive Investigation into Hydrodynamic Suspension Ultra-smooth Processing Different Material;

液流悬浮超光滑加工不同材料的对比研究

A Study on Composite Carbon Materials as Electrodes for All Vanadium Redox Flow Battery;

复合碳材料用作全钒液流电池电极的研究

Tunable effects of connective dendritic left-handed metamaterials based on electrorheological fluids

电流变液调控的连通树枝状结构左手材料

EHL Lubricating Property Comparison among Emulsion-lubricated Journal Bearing Materials

乳化液润滑轴承材料弹流润滑性能比较研究

Reseach into constitutive equation of anisotropic viscoelastic fluid of Liquid crystalline polymer

液晶高分子黏弹流体材料的本构关系研究

Study of Lobelia Chinensis Lour.Using Modern Liquid Chromatography Coupled with Mass Spectrometry;

现代液相色谱和质谱联用技术用于半边莲药材的研究

Boundary Layer Theory in Centrifugal Pumps of Liquid-Solid Two-Phase Fluid and Its Application on Vane's Design;

离心式固液两相流泵的边界层理论及其在叶轮设计中的应用

Standard test method for short-time hydraulic failure and resistance to constant internal pressure of the plastics pipes for the transport of fluids

GB/T15560-1995流体输送用塑料管材液压瞬时爆破和耐压试验方法

The rate of flow of a liquid or gas through a porous material.

渗透度，渗透率液体或气体通过渗透材料流的量度

An Experimental Study of Microencapsulated Phase Change Material Suspension Flow and Heat Transfer in Rectangular Minichannels;

相变材料微胶囊悬浮液在矩形小通道内流动传热的实验研究

Theoretical and Experimental Research on Hydrodynamic Suspension Ultra-smooth Machining for Hard-brittle Materials;

硬脆材料液流悬浮超光滑加工的理论与实验研究