基于OpenGL的二维电法数据三维可视化技术研究

结合目前电法勘探数据成图及二维解释的特点及存在的局限性,研究了OpenGL和VC＋＋2005联合编程,结合二维剖面数据特点,研制了基于OpenGL的电法数据三维可视化系统Geo3DVis。Geo3DVis的基本功能包括工区建立、二维解释、三维显示;实现了对二维剖面数据的动态放大、缩小、平移等交互操作。将Geo3DVis应用于实际二维物探数据资料解释,取得了良好的地质效果。     

Model experiment on anti-deformation performance of a self-supporting transmission tower in a subsidence area

A large number of high-voltage power transmission towers have recently been constructed in mining areas prone to subsidence.In order to ensure the safety of the transmission towers and the safe operati...     

Comparison of Skidding Performance of Small Track-type Experimental Prototype Skidder and J-50 Skidding Tractor

In this paper, field experimental comparison is made between a small track-type experimental prototype skidder and a J-50 skidding tractor. Experimental data, including skidding productivity, soil compaction on skidding trails, and damage rate of the residual trees, are analyzed. The results indicate that with the condition of scattered skidding area and low skidding volume per cycle, small track-type experimental prototype skidder has advantage on working and a higher skidding productivity. It makes lower soil compaction to the skidding trails in the depth of 0-5 cm, 5-10 cm, and 10-15 cm. Under the same work conditions, the damage rate of the residual trees made by small track-type experimental prototype skidder is only 1/5 of those made by J-50 type skidding tractor. The damage rate is reduced by 80%.     

电子设备的建模研究

本文首先介绍了开关电源的基本工作原理和电路构成,在此基础上,通过试验研究,建立了计算机和电视机等电子设备的静态负荷模型。所得结论,为电力系统稳定分析计算提供了依据。     

A novel frequency-offset monitoring technique for direct-detection DPSK systems

We propose and demonstrate a novel technique to monitor the frequency offset between the optical source and delay interferometer (DI) for direct-detection differential phase-shift-keying (DPSK) systems. In this scheme, a phase-modulated tone is applied to DPSK signals at the transmitter and then detected after being converted into an amplitude-modulated tone at the DI to be used for the monitoring signal. Our experimental demonstration shows that the monitoring range and sensitivity of the proposed scheme are measured to be /spl plusmn/2 GHz and /spl sim/10 MHz, respectively, which we believe are good enough to be used either to generate alarm signals for the frequency offset monitoring or to control the feedback loop of the DI.     

安徽省2004年度汽轮机叶片重大事故的原因分析及处理

对安徽省2004年度汽轮机叶片发生几次事故的原因分析，表明与叶片共振，加工、组装、银焊工艺等因素有关。     

营养型发酵软饮料的研究

研究利用稻加工大米的副产品碎米为主要原料 ,加入麦芽、加酶 ,进行液化、糖化、发酵等工艺 ,研制出一种发酵营养型软饮料。本产品与啤酒相比 ,可减少原料总用量的 17% ,减少麦芽用量的 2 8.6%。     

用NaI(Tl)探测器测量γ辐射场剂量特性的加权积分法研究

辐射场剂量特性的测量可以通过剂量率仪或谱 剂量转换的方法来实现。其中一种谱 剂量转换的方法是通过一个G(E)函数 ,把测得的结果直接换算成剂量而不需解谱。本文采用这种方法 ,对一个75mm× 75mm的NaI(Tl)探测器的能谱特性进行测量与分析 ,算出了该晶体的G(E)函数值及估计的误差 ,并用此方法与高气压电离室作了比对测量