试论如何构建特色煤炭企业文化

文章以提升企业核心竞争力为切入点,就如何构建特色的煤炭企业文化,论述了新形势下加强企业文化建设的重要意义。     

Signal and reference wave dually encrypted digital holographic system

We propose a secure digital holographic system with signal and reference waves dually encrypted. Two random phase masks are used to encrypt the images in the input and the Fourier planes. The reference beam is phase encoded by another random phase mask. The encrypted image and the key are recorded by a CCD camera. The data can be processed or transferred directly by computer. We theoretically and experimentally demonstrate encryption and decryption of multiple images and the results show a high quality and good fault tolerance.     

Effective identification of the three particle modes generated during pulverized coal combustion

Based on the mass fraction size distribution of aluminum （AI）, an improved method for effectively identifying the modes of particulate matter from pulverized coal combustion is proposed in this study. It is found that the particle size distributions of coal-derived particulate matter actually have three modes, rather than just mere two. The ultrafine mode is mainly generated through the vaporization and condensation processes. The coarse mode is primarily formed by the coalescence of molten minerals, while the newly-found central mode is attributed to the heterogeneous condensation or adsorption of vaporized species on fine residual ash particles. The detailed investigation of the mass fraction size distribution of sulfur （S） further demonstrates the rationality and effectiveness of the mass fraction size distribution of the AI in identifying three particle modes. The results show that not only can the number of particle modes be identified in the mass fraction size distributions of the AI but also can their size boundaries be more accurately defined. This method provides new insights in elucidating particle formation mechanisms and their physico-chemical characteristics.     

工程哲学与神东亿吨矿区创新实践

工程哲学指导工程实践。神东矿区在煤矿开发建设创新实践中遵循“系统性、客观性、时效性”的理性思维,系统思考,整体推进,寻找主客观最佳结合,及时掌握和集成新技术、新材料、新装备、新工艺,建设了不同于传统模式的千万吨矿井,建成世界上首个亿吨级煤炭生产基地。全员工效、生产规模、安全、环保水平、资源回收率等指标达到国际领先水平。     

一种适合突发通信的信号检测改进算法

突发信号检测是突发通信接收时所需完成的第1个同步算法.在双滑动窗口算法实现突发通信信号检测的基础上,利用前导码的特征对该算法进行改进.并针对几种典型的无线信道条件,对改进算法进行了理论分析、计算机仿真及FPGA实现.结果表明,改进后的算法开销小,只需6个符号左右就可以检测到突发信号,明显提高了检测算法的性能.     

龙永煤田昌福山区构造特征及其控煤作用

论述了昌福山区的构遣特征,即：印支运动产生的火成岩上升形成滑脱断层,再形成褶皱,在燕山运动早期形成推覆断层,在晚期由于燕山运动产生火成岩的隆升机制就形成倾角较大的正逆断层。其控煤可分为三大块进行：F11以东,所形成的煤系地层只受高角度断层切割破坏;F11以西至9线,其沉积煤层一般只受滑脱断层影响;9线以西,主要受火成岩影响,离火成岩愈远影响愈小,一般影响较大的是童子岩组第三段中、下部和第一段地层。     

使用Formality中的几个问题

介绍了等效性验证以及等效性验证工具Formality在整个ASIC设计流程中的应用。针对在使用Fomality进行等效性验证中出现的仿真与综合逻辑不匹配的问题进行了讨论,并提出解决方案。     

浅谈同步电动机的励磁调节

煤矿负荷大多是感应式电动机,属感性负荷,功率因数低。同步电动机可以在超前的功率因数下工作,但必须正确地调节电动机的励磁电流才能充分发挥其补偿能力,该文笔者根据理论和实践经验,介绍了正确的调节方法,具有一定借鉴意义。     

聚酯型光刻胶的发光行为

用化学发光仪研究聚酯型光刻胶及其他对照化合物的发光行为.发现聚酯型光刻胶有较复杂的发光曲线,起始发光温度较低,其发光情况与双键的存在和受热时发生的自由基过程有关.讨论了发光曲线与差热分析曲线的关系,以及与热稳定性有关的合成条件、使用条件和保存期.     

煤大分子结构研究的进展

评述了关于煤大分子结构和煤大分子堆垛结构研究的最新进展，提出了煤大分子结构“复杂多变”和“有序”的观点。建议将煤大分子结构划分为碳原子骨架（基本结构单元）、交联网络和边缘基因三个级次。