| 1. | Air shock wave magnitude can be calculated theoretically on the basis of the charge amounts, delay subdivisions and distance .
空气冲击波的大小可以根据总装药量，迟发分段及距离，由理论计算得出。 |
| 2. | Air shock wave of blasting and prevention
爆破空气冲击波及其预防 |
| 3. | Air blast effect
空气冲击波效应 |
| 4. | The research of pressure of air shock wave on the cover - board of double - storeyed basements
双层地下室底层结构顶板空气冲击波压力研究 |
| 5. | A conclusion is drawn that dust pollution of coal warehouse bottom is caused by haulage wind flow , inducd wind flow and impact wave wind flow
研究发现，毛煤仓仓下粉尘污染主要是由皮带牵引风流、落料诱导风流和空气冲击波风流造成的。 |
| 6. | A conclusion is drawn that dust pollution of coal warehouse - top is comprised by haulage wind flow , inducement wind flow and impact wave wind flow
研究发现，毛煤仓仓顶粉尘污染主要是由皮带牵引风流、落料诱导风流和空气冲击波风流造成的。 |
| 7. | The research result indicated that the distribution and change of around - flow - field parameters could be fairly described by simulation method in this paper
研究结果表明，所采用的方法可以很好地描述空气冲击波环流流场参量分布与变化规律。 |
| 8. | The initial development of explosive field and the circleflow behavior , the entire spread court , with an obstacle around an explosive source was obtained and the law of shock wave around - flow was analyzed
针对有障碍物阻档时空气冲击波的环流现象进行数值模拟，得到在爆源周围有障碍物时爆炸场初始发展、环流情况及整个传播过程，并分析了空气冲击波的环流规律。 |
| 9. | The research of this paper includes : ? high - speed photography and flash x - ray radiography are both used to capture the process of al shell ' s great deformation under low pressure . front illuminations are used to get the development of the fracture on the al shell . the relative energy release is analyzed from overpressure curves measured with some sensors
本文的研究内容主要包括： ?在受试炸药经历低应力大变形过程的susan试验中，同时采用高速摄影、闪光x射线照相对弹体的撞靶过程进行了拍摄，得到了壳体膨胀变形过程图像，并使用前照明技术观察到了铝壳表面产生的裂纹及其发展变化过程；从压力传感器测量的空气冲击波超压曲线，获得反应释放总能。 |
| 10. | Firstly , the three main harmful factors " characters and rules , theirs effect on civil house , demolishment criterion and control measure will be researched systemically . secondly , fuzzy mathematics , system arrangement analytical method and expert consultation method are put forward and discussed specially to set up civil house security fuzzy multi - arrangement elevation model , to evaluate blasting harmful factors " effect to neighborhood civil house ' s safety in the construction of express way , to predict the security of civil house and to bring forward control measures . lately , the forecast of the civil houses " safety by using bp neural net model and optimize of the blasting parameters will also be discussed in the dissertation
本文的主要研究工作有：系统地研究了爆破地震、爆破飞石、爆破空气冲击波三大有害因素的特征及规律、对民房的影响、破坏判据和控制措施；提出并重点论述采用模糊数学和系统层次分析法及专家咨询法建立民房安全性模糊多层次评价模型，对高速公路建设中爆破有害因素对邻近民房安全进行评价，预测民房安全性，提出控制措施；利用bp神经网络模型对民房安全进行预测，并对爆破参数进行优化。 |
