突水预报是一项重要的矿井水文地质工作。
Water inrush prediction is an important mine hydrogeological work.
将偏最小二乘回归与神经网络耦合,建立了矿坑涌水预报模型。
The authors establish the forecasting model for water yield of mine, combining neural network model with the partial least square method.
系统阐述了红外线超前探水的原理,测线布置方式,和超前探水预报判读依据;
The principle, measure line layout style, and criterion of infrared ray predicting water method are expounded in paper;
将人工神经网络技术应用于肥城煤矿区煤层底板突水预报中,并且开发研制成突水预报人工神经网络系统。
Artificial neural network technology is applied to water inrush forecast of coal seam floor of Feicheng mine area.
彼得,天气预报说了些什么?由于浴室的水在流,故我听不清。
Peter, what did it say? I couldn't hear with the water running in the bathroom.
采用计算流体动力学(CFD)技术实现在船舶设计阶段对船舶水动力性能的精确预报,是船舶水动力学学科中一个具有重大理论和实用意义的、富有挑战性的课题。
Numerical prediction of ship hydrodynamic performance at design stage using computational fluid dynamics (CFD) technique is a most important and challenging subject in the field of ship hydrodynamics.
通过线性理论计算与模型试验结果的比较,指出了线性切片理论在预报水动压力场时的不足。
The drawbacks of linear strip theory in predicting hydrodynamic pressures are pointed out with the comparisons of predicted and model test results.
本文的研究提出了一种有效而又简单的方法预报两船在波浪中的耦合运动,为分析海上航行补给所涉及的水动力问题提供了有效的手段。
The present study gives an efficient and simple tool to predict coupled motions of two moving ships and will be helpful to analyze the problems of under-way replenishment at sea.
本文讨论了由于天文潮潮高和潮时的预报误差可能引起的风暴潮增水值的误差范围;
The Storm-surge error range due to the tidal hour and tidal level prediction error is discussed.
结果表明:在预报的台风参数的可能变化幅度范围内,前期台风参数对后期增水的影响较小。
The experiments demonstrate that these typhoon parameters, which varied in their possible ranges when they were forecasted, induced little effect on storm surges when typhoons land.
为了分析鳍对吊舱推进器水动力性能的影响,用基于速度势的低阶面元法预报附鳍吊舱推进器的定常水动力性能。
In order to analyze the influence of fins, a low-order panel method based on velocity potential was used to predict the steady hydrodynamic performance of a podded propeller with fins.
该文应用低阶速度势面元法建立了预报三维水翼水动力性能的数值方法,重点对翼梢和尾涡进行了研究。
A potential-based surface panel method is applied to predicting the performance for three-dimensional hydrofoils, with emphasis on the tip region.
本文的工作,对于水下机器人搭载的研究及其在海底、码头附近运动时的水动力预报有很大的实用性。
The work of this thesis has practical use for the retrieval of underwater vehicle and the prediction of hydrodynamic when it is near seabed or wharf.
研究结果认为,海南水氡异常对地震的预报效能评分为0 4,表明水氡异常与地震活动有关;
The calculated earthquake prediction effective value of radon anomalies at Hainan station is about 0.4. The result shows that radon anomalies have something to do with earthquakes.
表明动态图像方法能较完整、直观地揭示水氡前兆异常的特征,可望成为一种水氡分析预报的新方法。
It is suggested that the dynamic pattern method could completely and directly show the anomaly characteristic in Radon precursor and be a new method of Radon analysis for the earthquake prediction.
理论预报采用STF法,在水动力计算中加入粘性与航态修正;在船模拖曳水池进行耐波性试验。
STF method with modification of viscous and bow up state was used for theory prediction, and model test for sea-keeping performance was done in towing tank.
其中,操纵水动力导数预报的精确程度无疑对整个船舶操纵性预报工作具有至关重要的影响。
The precision of the maneuverability hydrodynamic derivatives was undoubtedly of great importance to predict the ship maneuverability at the preliminary stage of ship design.
本文提出了一种鱼形舵定常升力的水动力性能预报的理论预报方法。
The theoretical calculation method about how to predict the hydrodynamic characteristics of Ichthyoid Rudder is proposed in this paper.
本设计由水雨情分析预报子系统、预警信息生成子系统以及维护及管理子系统三部分构成。
This design contains three parts including rainfall analysis and prediction subsystem, generation of early warning subsystem and maintenance and management subsystem.
所以,研究如何更能准确地预报对转螺旋桨水动力性能更为重要。
So, how studies can accurately prediction to the contra-rotating propeller hydrodynamic performance is more important.
岩溶富水隧道施工中对隧道掌子面前方一定范围内的地质情况进行超前探测和预测预报是保证隧道施工安全的关键技术。
In tunnel construction of rich water karst area, the key technology to guarantee the tunnel construction security is to detect and forecast the geological situation in front of the tunnel face.
预报和调度是水调自动化系统的重要高级应用功能。
Forecast and dispatch are the important advanced application functions of water dispatching automization system.
本文目的是考察该方法在高速船舶水动力预报上的适用性,促进其应用于工程实际。
The aim of this thesis is to investigate the applicability of this theory for hydrodynamic prediction of fast ship and promote it for engineering application.
因此,深入地研究如何准确地预报螺旋桨的水动力性能是非常重要的。
So, an in-depth study in how to make a accurate prediction of the hydrodynamic performance of the propeller is very important.
为了预报毂帽鳍的水动力性能,采用计算流体力学软件对粘性流场中毂帽鳍的敞水性能进行计算研究。
In order to predict the hydrodynamic performance of propeller with boss cap fins, CFD software was used to calculate the its open water performance.
建立了一个多开边界群岛海域溢油模拟的三维水动力模式,并在舟山定普港域作了模拟和预报试验。
A hydrodynamical model for oilspill simulation in archipelagic waters with multiple open boundary conditions is set up and simulation/forecast tests in Zhoushan dingpu Port are performed.
研究结果表明,突水监测预报系统可以在现场推广使用。
The conclusion indicates that the predicting system is correct and can be used by other similar mines.
本论文的研究为高阶面元法预报螺旋桨的水动力性能打下了一定的基础,对进一步提高面元法预报的精度具有一定的实用意义。
This research is useful in predicting of the hydrodynamic performance and in enhancing the prediction precision of the propeller by using High-Order Surface Panel Method.
该方法在煤矿突水中的应用进一步拓宽了灰色聚类理论的应用范围,并为煤矿突水的准确预报提供了一种新的方法。
It widens the applied scope of grey system clustering evaluation and provides a new scientific method for forecasting water inrush in the coal mine.
该方法在煤矿突水中的应用进一步拓宽了灰色聚类理论的应用范围,并为煤矿突水的准确预报提供了一种新的方法。
It widens the applied scope of grey system clustering evaluation and provides a new scientific method for forecasting water inrush in the coal mine.
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