In orde to obtain system optimization in high efficiency production and operation safety, the microcosmic problem of goaf treatment was brought into the creative design of mining method and the synergism of two problems was studied. Firstly, in view of the occurrence characteristics and mining conditions of catacalstic ore section of orebody No. 105 in Gaofeng mine in Guangxi province, considering the adaptability to different scale goafs in the ore section, based on mining environment reconstructing idea and continuous mining mode, a new mining method (mining environment reconstructing non-pillar sublevel-strip continuous mining method) was put forward. Then, some repr, esentative goafs were selected and their stabilities were calculated by discrete element method on the basis of differences of goaf scale, surrounding conditions and situ stress field. At last, the mining layout was adjusted on the basis of goafs stability analysis and the goafs were adjusted as a part of cutting engineering, blasting space or stope, so as to determine all kinds of goafs treatment schemes.

摘 要：為在生產(chǎn)高效和作業(yè)安全上取得系統(tǒng)整體最優(yōu)在线无码一区免费AV，將碎裂礦段的空區(qū)處理微觀問題納入采礦方法創(chuàng)新設(shè)計(jì)宏觀問題中上海一级黄片，開展2種問題的協(xié)同研究：首先最美情侣高清免费观看，針對廣西高峰礦105號礦體碎裂礦段的賦存特點(diǎn)和開采技術(shù)條件国产精品自在在线午夜，考慮對各種規(guī)墓谑炫磺空區(qū)適應(yīng)性91另类视频在线观看，基于采礦環(huán)境再造和連續(xù)采礦理論，提出采礦環(huán)境再造無底柱分段分條連續(xù)采礦法精品在线观看地址；然后欧美一级黄色操逼大片，根據(jù)采空區(qū)規(guī)模、圍巖狀況和原巖應(yīng)力場等條件的差異黄色工厂在线视频，在所有采空區(qū)中選擇具有代表性的空區(qū)亚洲国产欧洲日本综合，運(yùn)用離散元程序?qū)ζ浞€(wěn)定性進(jìn)行計(jì)算分析；最后99精品在线免费观看，在穩(wěn)定性分析的基礎(chǔ)上插的太舒服在线视频，靈活調(diào)整開采布局，將采空區(qū)調(diào)整為部分切割工程亚洲天天在线看视频、自由爆破空間或采場国产在线小视频欧美看大片，從而確定出各種規(guī)模空區(qū)的處理方案91性色在线观看www免费。

An offset surface method was proposed to calculate the discrete mandril's height, whose algorithm was very simple and without the convergence problem which is common to analytical algorithm.

提出了采用偏移球心曲面計(jì)算頂桿高度的方法国产一级a爱看片免费视频，算法實(shí)現(xiàn)簡單，無解析算法產(chǎn)生的收斂問題免费视频久久。

The inverse problem is solved using conjugate gradient method of minimization based on discrete ordinates method of radiative transfer equation.

該方法是在輻射傳遞方程離散坐標(biāo)近似的基礎(chǔ)上美女黄18以下禁止免费看，用求目標(biāo)函數(shù)極小值的共軛梯度法進(jìn)行反演計(jì)算。

Its security is based on the security of Shamir's threshold scheme and the intractability of discrete logarithm problem.

方案的安全性基于Shamir門限機(jī)制和離散對數(shù)問題欧美特黄特级作爱大片亚洲性人人。

Aiming at the problem of Markova chain state transition prediction, this paper presents equivalent prediction method and models based on Discrete Process Neural Networks. According to the description of system state transition problems in a certain condition, we discuss the equivalence relation between DPNN and Markov models.

針對Markov鏈狀態(tài)轉(zhuǎn)移預(yù)測国产性受XXXX白人性爽，提出一種基于離散過程神經(jīng)元網(wǎng)絡(luò)的等效狀態(tài)轉(zhuǎn)移預(yù)測方法和模型，探討DPNN與Markov模型在一定條件下對于系統(tǒng)狀態(tài)轉(zhuǎn)移特性描述的等價性問題亚洲黄片多人免费。