bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis on Grain-Size Characteristics and Sedimentary Environment of Conglomerate Reservoirs in Ying-4 Section of Xingcheng Gas Field of Songliao Basin
Authors: Sun Yu , Zhang Xiu Li , Zhang Jin Yan , Chen Chen
Published: August 2013

Aimed at difficulty of conglomerate in Ying-4 Section of Xingcheng Gas Field, Songliao Basin, which it is impossible to be carried out, using routine granularity analysis methods, and the iconic grain-size analysis is carried out. According to iconic two-dimension grain-size analysis, and contacting to fundamental sedimentary characteristics of conglomerate, sedimentary environment analysis is carried out. It is thought that this area is Shallow gravel-bed braided fluvial fan deltas, to braided fluvial delta transition, which supported an important geological foundation for the next disposition of exploration in Xingcheng Gas Field.
A Routing Protocol for Solar Energy Harvesting Wireless Sensor Networks
Authors: Li He Pei , Zhang Ling Tao , He Su Bo
Published: August 2013

Energy and lifetime issues are crucial to the wide applications of wireless sensor networks. This paper proposes a routing protocol, SEHRP (Solar Energy Harvesting Routing Protocol), for solar energy harvesting wireless sensor networks. This protocol classifies all the sensor nodes into various regions for which each region has been assigned its transmission priority, and the data can only be delivered from lower priority regions to higher priority region. SEHRP can also detect the sensor nodes which are under the charging state, then avoid choosing those charging nodes to ensure the successful data delivery. Simulation results show that, compared to the baseline protocol, SEHRP can achieve significant performance improvements in terms of average energy consumption and average data delivery rate.
Application of BP Neural Network in Coalmine Safety Management Performance Evaluation
Authors: Liu Ye Jiao , Tian Zhi Chao , Huang Dong Mei
Published: August 2013

The index system of coalmine safety management performance evaluation is established, the structure and principle of evaluation method of BP neural network is introduced and the model of performance evaluation based on BP neural network is constructed, in which the input and output parameters as well as the connection weights and domain values of every layer are defined; and based on the matlab6.0 software, it uses internal tool boxes of neural network and sample data to train the neural network that has been constructed and forecast the coalmine safety management performance.
EMLDC: An Efficient Method of Long Data Communication for the L4 Microkernel-Based Virtual Machines
Authors: Cheng Guang Hui , Li Lian
Published: August 2013

Microkernel-based virtualization is one of several popular virtualization technologies aiming for embedded devices and efficient communication between virtual machines should be provided as other virtualization solutions. Long data communication is one of main two communication methods. This paper proposes EMLDC: an efficient method of long data communication based on shared memory in the L4 Microkernel-based virtualization environments. Especially EMLDC adopting lock-free mechanism can reduce performance loss and priority inversion in the real-time virtual machines against traditional blocking algorithm. Benchmark programs have been conducted to demonstrate that EMLDC can support long data communication efficiently.
Graph Traversal Dynamic Demonstration System Design and Implementation
Authors: Chen Bang Ze , Yang Xiao Bo
Published: August 2013

The graph vertices design into classes, for each vertex in the design of the abscissa, ordinate and in-degree members, realizes the dynamic demonstration graph traversal algorithm. Around two window synchronization of animation, " traversal sequence " list box list dfs (bfs ) traversal sequence ,with thick line in the left window drawing traversed through the vertices and edges, and in "traversed stack (queue) changes in" real-time text box displays the current traversed through vertices, in the right box demo the process of algorithm dynamic execution.
Ground Target Tracking Using Aerial Images
Authors: Hu Xian Jun , Wang Hang Yu , Shi Zhang Song
Published: August 2013

The tracking of ground targets using aerial images was studied. A improved Kalman filter was derived for the tracking of ground targets. The novel feature of this improved filter were that the grey prediction equations and the road information have been incorporated to improve the accuracy of state estimates.The GM(1,1) (Grey Model) was introduced into Kalman prediction equations.The next value was forecasted by using few forward estimated values with a grey differential equation,which was baesd on the correction of mesurement covariance matrix. The tracking of the targets shows a satisfactory result.
Improved Fingerprint Recognition Algorithm Application Study on Smart Home
Authors: Chen Shu Qian , Fu Yang Lie , Yin Ming Yang
Published: August 2013

Study on a new type of fingerprint identification algorithm and its application in intelligent home electric control lock problem. The traditional fingerprint recognition algorithms on fingerprint minutiae matching accuracy is low, difficult to accurately extract details, leading to lock malfunction or could not be opened. In order to overcome this problem, improved Point pattern fingerprint recognition matching algorithm, joined the matching weight coefficient on the base of pattern matching algorithm, and gives the hardware structure of fingerprint identification system, the improved algorithm is successfully applied in smart home applications, the example shows that, the improved algorithm can effectively improve the recognition rate , reduce false positives, has a certain practical value.
Multi-Classification Combination Algorithm Based on Logit Model and Support Vector Machine
Authors: Zhang Xin Lei , Li Meng Gang , Zhang Zuo Quan
Published: August 2013

According to the basic theories of Logit regression analysis and support vector machine, this article involves improved multi-classification combination algorithm. When applying this model, there are some innovations. First, choose optimized composite indicator as a variable through principal component analysis and get more information. Second, introduce Logit parameter model to the quadratic to increase prediction accuracy. Third, put forward a multi-classification combination model of improved Logit model with SVM to increase prediction accuracy.
Variation of Wind Resistance Reliability of Foundation in Coral Sands
Authors: Cheng Zhong Qing , Yang Ping , Jiang Hai Bo
Published: August 2013

Considering variation of bearing capacity of foundation caused by crushing of coral sands, the variation of wind resistance reliability of foundation in coral sands was studied. Based on the use of exponential decay model of bearing capacity of foundation, the reliability index of foundation at different time was calculated. Calculation shows that in the mid-term of foundations life in coral sands, attention should be paid to the assessment of wind resistance reliability of foundation, and it is necessary to track the variation of wind resistance performance of foundation in time. After a long time of operation, assessment must be applied to the wind resistance reliability of foundation combining with inspection.
Solutions for a Class of Elliptic Equation
Authors: Xiu Zong Hu
Published: August 2013

In this paper, we study the existence of solutions for a class of elliptic equation. By the variational methods, we give the sufficient conditions that insure the existence of solutions.
Study of Scale-Down Method for Dense Grid Points
Authors: Yu Sheng Yun , Song Chang He , Xu Hai Ying
Published: August 2013

The data of three-dimension geological models are very large, this kind of three -dimension geological model can not be directly used for numerical simulation and must be scaled down. The reservoir parameters, especially permeability, are scaled down by the simple renormalization method. The interbeds and parts of strong heterogeneity are filled back. The simple renormalization method is good through evaluation , not only it reduces the number of grid points, but also retains reservoir heterogeneity.
The Implementation of Visualization Software of the Rapid 3D Apparent Physical Properties Inversion Method
Authors: Li Hai Xia , Yu Hai Long , Zhang Ping Chuan
Published: August 2013

The main function of the application software of the rapid inversion method of 3D apparent physical properties, and the key techniques used to achieve software are described in this paper. The core modules of the software is apparent physical properties inversion which can achieve the 3D apparent density and the 3D apparent magnetic inversion calculation, in addition, the software provides data preprocessing, reduction to the pole, the potential field continuation and potential field cut function. In software implementation process, first, compiling the calculation program modules by Fortran90 language, and then combining with dynamic link library, multi-threading and Surfer automated call technology, we compiled the visualization software interface to realize the function of the new method by C, C + + language, under the C + + Builder6.0 environment.
Three Jiaohe Coal Mine Safety Information Management System Design Scheme
Authors: Li Shu Zhen , Huang Hui
Published: August 2013

In order to solve the three JiaoHe coal mine safety production the problems existing in the management and detailed analysis of the safety of this ore information management status, determine the safety information management system design goal, make the system design of the guiding ideology, the advanced nature, adaptability, according to the developmental and reliability of principles in the design, the management system has strong data processing ability can provide the scientific decision of leaders at all levels of the data support, advanced and reliable information means can help enterprise further improve safety management work process optimization and realize the goal of prevention, so as to reduce the number of accidents, ensure the safety of the QuanKuang production.
A Fault-Tolerant Data Center Network Structure
Authors: Wang Peng , Lv Yan , Tan Yu
Published: August 2013

According to advantages and disadvantages of the traditional data center network structure ,this paper propose a new data center network structure base on BCube and DCell. The new structure is mainly improved based on the scalability, fault tolerance, the throughput
A Gesture Recognition Algorithm Based on PCA and BP Neural Network
Authors: Li Hong Yi , Chen Jun Jie , Li Xin , Zhao Di
Published: August 2013

Gesture recognition has many applications in fields such as the intelligent robot, human computer interaction and so on. The classical BP neural network has its advantages in modeling the highly nonlinear mapping from features to gesture meanings, and could avoid hard-coded feature extraction. However, it usually takes a rather long training and testing time, especially in dealing with redundant high dimensional data. To address this drawback, we combine the BP neural network and PCA, and propose an improved algorithm. Experiments demonstrate the feasibility and efficiency of the proposed algorithm by comparing with the classical one.
A Target Selection Algorithm of Seeker Based on the Prior Information and SVM
Authors: Zhang Guo Dong , Liu Zhong
Published: August 2013

Aiming at the phenomenon that the chaff and corner reflector released by surface ship can influence the selection of missile seeker, this paper proposed a multi-target selection method based on the prior information of false targets distribution and Support Vector Machine (SVM). By analyzing the false targets distribution law we obtain two classification principles, which are used to train the SVM studies the true and false target characteristics. The trained SVM is applied to the seeker in the target selection. This method has advantages of simple programming and high classification accuracy, and the simulation experiment in this paper confirms the correctness and effectiveness of this method.
Algorithm for Imaging Sonar Target Detection based on Geometry Characteristic and SVM
Authors: Liu Zhong , Li Ke , Yan Bing
Published: August 2013

The attack from small speedboat and underwater robot is becoming more and more serious. And most powerful countries have installed underwater surveillance systems to protect port, ship, seashore depository and anchorage. The detection technology of underwater target is the most important technology in the process of surveillance. In order to take good advantage of the target’s geometry characteristic and classification function of SVM(Support Vector Machine), an algorithm for imaging sonar target detection based on geometry characteristic and SVM is proposed in the paper. The experiment results are presented and show that this algorithm is in high detection rate under complex underwater circumstance.
Application Research of Improved Ant Colony Algorithm in Hybrid Mobile Agent Routing
Authors: Zhang Li Hong , Chen Shu Qian , Bai Gui Zhi
Published: August 2013

Mobile agent routing essentially is a multi-constraint optimization problem, for Ant Colony algorithm for global search capability is weak, the feedback information of the system does not use and has the problem of low efficiency of finding exact solutions, propose an improved Ant Colony Algorithm for WSN mobile agent routing. This algorithm takes full use of the wireless sensor node energy, the direction of ants is determined according to the residual energy and the distance of nodes, quickly find the global optimal solution for mobile agent route. Simulation results show that the algorithm can find optimal mobile agent route in a relatively short time, relative to other routing algorithms, reducing network latency and average energy consumption, effectively alleviate network congestion, and extend the network lifetime.
Hybrid File System - A Strategy for the Optimization of File System
Authors: Wang Ya Rong , Wang Pei Rong , Liu Rui
Published: August 2013

The hybrid file system is designed to optimize the latency of the response of File System I/Os and extend the capacity of the local file system to cloud by taking the advantage of Internet. Our hybrid file system is consist of SSD, HDD and Amazon S3 cloud file system. We store small files, directory tree and metadata of all the files in SSD, because SSD has a good performance for the response of small and random I/Os. HDD is good at responding big and sequential I/Os, so we use it just like a warehouse to store big files which are linked by the symbolic files in the SSD. We also extend the local file system to cloud in order to enlarge its capacity. In this paper we describe test data of our hybrid file system and also its design and implement details.
Mathematical Constraints Representation for Bottom-Up Approaches to Climate Policy Modeling
Authors: Kim Hu Gon , Chung Yong Joo , Paik Chun Hyun
Published: August 2013

For analyzing the effect of GHG abatement policies, bottom-up models including MARKAL, MESSAGE, AIM etc. are widely used. These models are normally based on LP(linear programming) optimization, and are trying to find both the minimal cost combination of technologies and energy flows while satisfying the demands. This study investigates representative constraints needed for analysing GHG abatement policies, proposes how to implement these constraints in bottom-up modeling.
Research on Security Strategies of Digital Library Based on Cloud Computing Platform
Authors: Tang Kai
Published: August 2013

Based on the application of cloud computing, digital library is a cloud with a powerful computing capability, which is integrated from many relatively low cost computing entities through network. This cloud can be applied to store all types of document resources and conduct computing application, so as to unify the management by the means of resources sharing. The users can use a variety of terminal equipment to access it without any limitation of time and place, and it can carry on the service charge process based on the use of resources. The framework of digital library based on cloud platform can be divided into 3 layers: core service, service management as well as user access interface. Digital library based on the cloud computing platform is confronted with some security problems, such as data security, user privacy leaks, virtualization security etc. The paper discusses the corresponding strategies from the perspectives of WEB browser security, data encryption, identity authentication and authorization decision, virtual security technology, and establishment of cloud computing security standards and evaluation system.
Robust Kalman Filtering for Descriptor Systems with Unstructured Uncertainties
Authors: Wang Shu Fen , Shi Ying
Published: August 2013

A robust Kalman-type recursive filter has been proposed for descriptor systems subject to linear unstructured additive uncertainties in this paper. It is proved that the linear additive uncertainties during filtering can be represented by the intersection of a series of additive uncertainties relying on the actual plant. A set of additive uncertainties independent of the actual states is utilized in this paper to include this intersection, whose parameters can be obtained offline through convex optimizations. A numerical simulation shows that the algorithm can be realized recursively for linear additive uncertain-ties, and verifies the effectiveness of the proposed algorithm.
Structure and Analysis of Certificateless Proxy Blind Signature Scheme without Bilinear Pairing
Authors: Wang Yi
Published: August 2013

Combined with certificateless public key cryptography and proxy blind signature, an efficient certificateless proxy blind signature scheme is proposed. Its security is based on the discrete logarithm problem. Compared with the existed certificateless proxy blind signature scheme, because without bilinear pairing, it have higher efficiency. According to the different attacker and all kinds of attacks, the scheme is proved to be correct and security under the hardness of discrete logarithm problem in the finite field.
Environmental and Economic Significance and Feasibility Analysis of Tight Sand Gas Reservoir in China
Authors: Wang Jian Guo , Chen Long , Zhang Hai Jie , Han Tao
Published: August 2013

Currently, with a sharp increase in demand for natural gas and a strict energy supply circumstances, the development of tight sand gas becomes a pressing need for the rapid development of Chinas society and economy. At the end of 2010, the reserves and annual production of tight sand gas in China accounted for 39.2 percent and 24.6 percent of national natural gas, respectively, and the proportions are expected to increase. Compared with other unconventional gas such as shale gas and coal bed methane, the techniques of tight sand gas are relatively mature and development costs of it are relatively low. So tight sand gas should be considered in priority in the exploration and exploitation of unconventional gas in China. The total reserves of tight sand gas in China are 12 trillion cubic meters. Tight sand gas in China possesses the rich reserves and enormous potential to develop, which can ease the current shortage of energy. Besides, China has mastered a series of key techniques such as the well drilling and completion protection supporting technique; well completion and staged fracturing technique of horizontal well, which guarantees the technical feasibility of the development of tight sand gas reservoirs. From the perspective of market, social and environmental meaning, reserves, technique and economic feasibility, this paper presents a systematical analysis about the importance of developing tight sand gas in China.
Establishment of Isochronous Stratigraphic Framework of Fuyu Oil Layer in Toutai Oil Field and its Significance
Authors: Wang Ya Chun , Zhang Zhi Qun , Zhang Xiao Ling , Xu Guang Bo
Published: August 2013

Based on the detailed core data and logging data from Toutai oil field and applying correlative technique of fluvial facies reservoir, through guiding wells selection, key beds determination, progressive oil layer subdivision of all wells, fine stratigraphic classification and correlation are carried out. The Fuyu oil layer in Toutai oil field is divided into 3 sand groups, 18 sublayers and 37 sedimentary units, consequently, monosandbody-scale isochronal stratigraphic framework is established, which can provide geologic basic data for further study on sedimentary microfacies, sand body distribution, oil and water distribution and favorable target prediction.
Research on Risk Management in Urban Subway Construction
Authors: Ma Yan Ting , Ma Chun Jie
Published: August 2013

As one of the major projects, urban subway plays an important role in the city development. However, therere a lot of uncertain risks throughout the entire construction process, any improper handling may lead to serious safety accidents and incalculable property damage, so it is essential to take full concentration in the urban subway risk management. This paper divided risks that may encountered in the process of subway construction into three parts, and gave advices from four aspects so as to effectively prevent and mitigate the subway risk, thus ensure the achievement of the subway construction.
Study on the Forecast of the Economic Loss in Storm Surge Disaster Based on Fourier Series - A Case Study of China
Authors: Zhao Ling Di , Hao Ya Ru
Published: August 2013

The economic loss forecasting model is built up on the basis of the Fourier series to simulate economic loss and grades in storm surge disaster of Zhejiang, Fujian and Guangdong Provinces. The wind speed can be used to forecast the economic loss of Guangdong Province, and the accuracy of trend and grade forecasting is good (80%). The wind power data can be used in Zhejiang and Fujian Provinces, and the accuracy results are both inferior (60%). Therefore, in the economic warning of storm surge disaster, the Fourier series model can be applied to forecast economic loss and grades.
Geochemical Characteristics and Analysis of Tectonic Setting of Hannuoba Basalts from Chifeng Region, Inner Mongolia
Authors: Peng Yan Dong , Zhang Zhi Bin
Published: August 2013

The Hannuoba basalts from Chifeng region, Inner Mongolia, are continental flood basalt, produced by fissure-t type volcanism in the Miocene. The basalts chemically belong to the tholeiitic series. On the whole, the petrologic compositions are homogeneous. The basalts is characterized by Al2O3 = 11.5%~13.0%, Na2O> K2O and TiO2=1.93~3.29%, chemically belong to the calc-alkaline series with low K2O, which are the agpaitic type; The total amounts of REE of Hannuoba basalts are lower and rich in LREE. There is a weak Eu negative anomaly and weak Ce negative anomaly. The basalts are obviously enriched in incompatible elements (K, Rb, Sr, Zr, Ba, LREE etc.), and depleted in high field-strength element (U,HREE) as well as compatible elements (Co, Ni, Cr etc.).Comprehensive studies have shown that Hannuoba basalts erupted in a stable setting within continental plate and controlled by deep fracture crossed mantle, belonging to continental rift basalt.
Geochemical Characteristics and Tectonic Implications of the early Permian Volcanic Rocks from Ongniud Banner, Inner Mongolia
Authors: Liu Deng , Cao Dai Yong , Wang Yi Wu , Liu Zhong Yuan
Published: August 2013

The Early Permian volcanic-sedimentary sequences of Ongniud Banner consist mainly of andesite, rhyolite, perlite, volcanic breccia, tuff, tuffaceous sandstone, siliceous rock. Rock assemblage and sedimentary formations indicate that are of fore-arc basin sedimentary feature between subduction zone and island arc in Early Permian. The volcanic rocks from Elitu Formation have SiO2=50.23%~74.83%, Mg#=6.21~49.54, Na2O+K2O=5.27%~10.73%, Na2O/K2O=0.36~4.17, belonging to high-K cal-alkaline (HKCA)~shoshonite (SHO) series. The volcanic rocks are characterized with (La/Yb)N=5.52~9.89, moderate - intense negative Eu anomalies, LILE enrichment such as Ba, Ra, K, Th and HFSE depletion such as Ta, Nb, P, Ti, and indicating that magma could be formed in the tectonic setting of the island arc and active continental margin related to the plate subduction. R1-R2 diagram also indicates that volcanic rocks were generated at syn-collision or post-orogenic period, perhaps representing the mid-later subduction stage of the Palaeo-Asian Ocean Plate and North China Plate. Taken together, the authors suggest that the region was located still in the Palaeo-Asian Ocean, rather than the intracontinental taphrogenic trough in Early Permian.
Application of 3D Apparent Physical Properties Inversion Method in an Iron Mine Area
Authors: Li Hai Xia , Yu Hai Long , Zhang Ping Chuan
Published: August 2013

A rapid method for 3D physical properties inversion based on separation and continuation of potential field are introduced in this paper. The inversion technique characterized by faster computing speed, it does not need to divide the underground field sources region into many rectangular blocks in one time and does not need to solve linear algebraic equations as well. So, this technique can overcome the requirement of large computer memory, unstable solution and computation time bottleneck which hinders the application of 3D inversion to practice. The method is used to apparent magnetic susceptibility inversion of magnetic anomaly in a iron mine area, the inversion results show that the method has good accuracy, and the advantages of strong stability and a high computation speed, and is suitable for 3D inversion of magnetic data in large area.
Pi Decision Technologys Application to Profile Control and Water Shutoff in Jiyuan Oilfield Luo27 Well Field Chang4+5 Reservoir
Authors: Wang Meng , Hu Rui , Zou Yan , Ma Yu Jie
Published: August 2013

Jiyuan Oilfield Luo27 well field chang4+5 reservoir belongs to the typical three low" reservoir, which has tight reservoir, micro-fracture development and strong heterogeneity. After the water flooding development, there are many unusual phenomenons, such as profile absorbing water unevenly, injected water rushing in one direction seriously, block water cut rising rapidly, flooding wells increasing more. For that conventional dynamic adjustment and tracer monitoring are difficult to determine the inflow direction. In order to improve injected water utilization, Luo27 well field chang4+5 reservoir uses PI decision overall profile control technology to improve the injected water utilization, which effectively seals off the high permeability layer and eases the oilfield water cuts increasing speed and finally improves the water flooding recovery ratio.
Potential Hydrocarbon Resources in Aral Sea Area in the North Ustyurt Basin
Authors: Zhou Tian Wei , Zheng Jun Zhang , Kong Ling Hong , Wang Chun Sheng , Lin Ya Ping , Wang Su Hua , Wu Tie Zhuang
Published: August 2013

A probabilistic method named discovery process modeling is described for estimating the quantity of undiscovered oil and gas resources in Aral sea area in the North Ustrurt basin. In this model, the pool size distribution was demonstrated, and the numbers and sizes of undiscovered pools were estimated. The most likely remaining plays potential in Area sea area is 3447.2 Billions of standard cubic meters of gas in place. The eastern Jurassic-Cretaceous play bears 2901.5 Billions of standard cubic meters of undiscovered gas in place, and 17 gas pools are yet to be discovered; the paleogene-Neogene play bears 545.7 Billions of standard cubic meters of undiscovered gas in place, and 13 gas pools are yet to be discovered. Based on resources analysis, the Aral sea area is a prospecting exploration area for gas, and the emphasis should be strengthened on the eastern Jurassic-Cretaceous play.
Research and Applications on the Theory of Shale Gas Depth Enrichment Zone
Authors: Guo Wei , Liu Hong Lin , Xue Hua Qing , Li Xiao Bo
Published: August 2013

Shale gas is one of unconventional natural gas reservoirs,with forming pattern of self-generating and self-preserving. The research indicates that the distribution characteristics of shale gas content is influenced by the factors of the depth,the structure shape,the total carbon organic and the physical property of shale reservoir. The shale gas is on dynamic balance among the adsorbed gas, the free gas and the dissolved gas. By the exploration and development of shale gas,we obtained important theoretical understanding that there exists a parabola model relation between the shale gas content and the depth of shale reservoir,which is called L-W model of enriched accumulation belts of shale depth. Theory and practice studies show that the synclinal layer is the main structural factors controlling the enrichment of shale gas. Therefore,in the background of stronger geological tectonic movements in our country, finding weak tectonic area such as the synclinal layer formation occurrence,is the exploration direction for determination of favorable target areas of shale gas.
Sequence Stratigraphy of Jurassic Succession in Central Junggar Basin, China
Authors: Li Jing Zhe , Zhang Jing Liang , Yuan Yong , Zhang Peng Hui , Li Cun Lei , Luo Zhong Qin , Qin Lei , Ding Fang , Li Xue , Li Yan
Published: August 2013

Sequence stratigraphic features of the Jurassic succession in Central Junggar Basin were investigated by integrating multiple materials including cores, well and seismic data. Due to their unique formation mechanism, sequences of the target interval were analyzed with a binary systems tract mode (each complete sequence contains a transgressive systems tract and a highstand systems tract) rather than the traditional one. Basic principles and analytical methods of high-resolution sequence stratigraphy were also applied to this research. By adopting cyclic correlation and hierarchical control techniques, eight sequences (Sq1-Sq8) were identified in the target interval. Especially, coal seams are of great significance in the sequence identification and they were considered to be closely relevant to maximum flooding surfaces (mfs).
The Provenance Tectonic Background Analysis of the Upper Jurassic Mohe Basin in Northeast China
Authors: Zhang Yue Qiao , Hou Wei , Zhang Fang
Published: August 2013

The provenance tectonic background of Late Jurassic Mohe Basin was researched through the geochemical composition of sandstone. The Late Jurassic Mohe Basin is characterized by multiple provenances. One provenance is the active continental margin, and another is the island arc. Comparing with the regional lithology, the active continental margin may be from the Mongolia-Okhotsk orogenic belt, and the island arc may be from the northern of the Da Hingan Mountains. The characteristics are concerned with its geotectonic position.
The Research of Gas-Water Relations in Low-Permeability Tight Sand Gas Reservoir - Taking Zizhou Gas Field for Example
Authors: Ma Jun Bao , Ma Yu Long , Sun Chao , Wang Jian Guo
Published: August 2013

The gas-water relations of low-permeability tight sand gas reservoir are complex and not necessarily linked to the structural relief, phenomenon that water is distributed in high structural position while gas in low structural position is common what makes it difficult to make a refined description of gas-water relations and distribution low. The article takes Zizhou gas field for example, establishes 4 gas-water relations modes of single well to analyze some profiles where there is abnormal phenomenon water up gas down, the fact is that water and gas are distributed in different sand bodies and Zizhou Gas Field is not a deep basin gas reservoir. The research shows the phenomenon that water up gas down does not exist, the gas-water relations are normal. The research results have certain significance for the determination of gas-water distribution law.
Zoning and Exploration Significance of the Maoping Pb-Zn Deposit, Northeastern Yunnan Province, China
Authors: Yang Guang Shu , Han Run Sheng , Wu Peng , Feng Peng Yu
Published: August 2013

Based on the lithofacies mapping and petrographic studies, the mineralization-alteration zoning and mineralization process of the Maoping Pb-Zn deposit are discussed. Three ore body groups of the Maoping Pb-Zn deposit have similar transversal zoning, which is characterized by different mineral assemblages from the ore body center to outside. The mineralization-alteration can be divided into diagenetic stage, massive sulfide-carbonate stage, veined sulfide-carbonate stage, and supergene stage. The massive sulfide-carbonate stage is main Pb-Zn mineralization stage. The established zoning model and indicators can be used for ore prospecting.
Analysis of Soil Disturbance by Shield Tunneling
Authors: Xu Meng Lin , Zhao De Shen
Published: August 2013

The shield tunneling will be bound to disturb surrounding strata, induced stress redistribution in soil, soil deformation and surface subsidence. We analyzed characteristics of soil disturbance by shield tunneling with numerical simulation. To provide technical support for the future urban shield tunnel construction. It shows practically significant in studying shield tunnel construction.
Researches on Sequences Stratigraphy of Neogene in Huanghekou Sag, Bohai Bay Basin, China
Authors: Ju Yong Tao , Liu Hao , Zhao Chun Chen , Guo Tao
Published: August 2013

The Huanghekou Sag, as an important oil-bearing zone, is located in the southeastern part of the Bohai Bay basin. It has higher values for petroleum exploration-especially in Neogene. The Neogene was a depressional lacustrine period and was characterized with both tectonically stable and gentle topography. Thus it is difficult to identify and subdivide sequences using the traditional method. Based on the practical geologic setting and current data of the Neogene of Huanghekou Sag, using the new method to set up the isochronous sequence stratigraphic framework. By analyzing climate cycle, drilling well and logging cycle, seismic cycle and the identification of unconformity of seismic and drilling well and logging data, the Neogene was divided into 5 third-order sequences and 10 systems tracts. In different sequence sets and systems tract, which was controlled by climate, ratio rate between sedimentary being supplied and accommodated, the sand body scale was different.
Study on Surface Movement and Deformation Characteristics and Pillar Stability of Large Strip Mining under Deep Mining
Authors: Chen Jun Tao , Sheng Kai Kai , Yin Li Min , Wu Chuan Qiang
Published: August 2013

Large strip mining technology could effectively control the surface subsidence inducing from overlying strata movement and realize green mining. Bored stress and deformation sensors were laid in 4301 working face pillar of Shandong energy zibo mining group tangkou coal, analyzing the strip pillar stress pre and post working face; numerical simulation was used to study the influence of overlying strata from reserved size of strip pillar. According to the observation results of surface movement and deformation, law of surface movement and deformation characteristics was studied, which contributed to the practical application of large strip mining technology under deep mining and had the important theoretical and practical significance for mining under buildings ,railways and water in Chinese.
Experimental Study of Temperature Reduction with Airflow Control Measures in Mining Faces
Authors: Luo Yong , Liu Chao
Published: August 2013

Based on the present situation of heat hazard in deep mine, main cause of geothermal anomaly in Huainan mining area are expounded in detail and cooling techniques adopted in mining coal face with high temperature are analyzed, and cooling experimental studies using U and Y ventilation systems are carried out in adjacent working faces of Guqiao and Dingji coal mines, which shows that the airflow temperature in roadways using Y ventilation system is 3~5 °C lower than that of using U ventilation system and humidity ratio decreases from 95%~100% to about 92%. Finally, research contents and further direction of heat hazard in deep mine are pointed out.
Lication of Complex Summation in Eliminating the Impact of Minor Faults during the Research on Upper Mining Limit of Coal Seams
Authors: Niu Guang Liang
Published: August 2013

In this paper, complex summation is applied to the researches on upper mining limit of coal seams. In detail, nature, trend and equivalent fall of a fault are respectively cited as quadrant, angle and size of plain vector coordinates. An equivalent fault is thus acquired through complex ummation and then put on the most unfavorable position to analyze the impact of this fault on results of research on upper mining limit. As a esult, the application has successfully eliminated superimposed impact of minor faults on upper mining limit evaluation
Prediction of Mining Step in Strong Mine Earthquake Based on Grey System Theory
Authors: Wang Kai , Liu Kuan
Published: August 2013

Mine earthquake is one of induced earthquakes caused by mining activities. When strong mine earthquake happens, the propagation process of seismic waves have enormous energies, which will make dynamic load pulse impulsion for coal seams and roadways strongly, as the result, the coal would collapse and throw out coal-rock mass dynamically, moreover, it would evoke impulsion pressure which could cause casualties.
Research on the Equipment Addition of Antaibao Open-Pit Mine
Authors: Yang Zhao , Zhang Rui Xin
Published: August 2013

According to the existing equipment data of mining and transportation of Antaibao open-pit mine, this paper which uses different kinds of equipment as the research objects, carried out a detailed analysis of the required equipment models during crossing the anticline in the open-pit mine combining with practical and theoretical calculations on-site. This research not only confirms the type and quantity of dump trucks and other major equipment, but also provides guidance to the production for the mine.
Study on Fully-Mechanized Top Coal Caving Mining under Water Body with Shallow Overburden and Thin Bedrock
Authors: Li Lei , Liu Zhi Guo , Chen Pei Pei , Liu Gui
Published: August 2013

Based on the geological condition of MaHuangliang coal in the Yushen mining area, the paper systematically studied the overburden's destructiverules of fully-mechanized top coal caving, and established hydro-geological model of research area by using GMS numerical simulation. Based on the model, the paper predicted the water inflow of different aquifer, analyzed the influence of aquifer to coal mining, and introduced the technical plans about fully-mechanized top coal caving mining under water body with shallow overburden and thin bedrock.
Study on Regulations of Coal Mining under Highway
Authors: Deng Wei Nan , Zhang Hua Xing
Published: August 2013

For guiding coal mining under highway scientifically and systematically, Regulations of coal mining under highway is necessary to be compiled in a few years in China.Base on the study of laws about highway and coal mining and existent regulations about coal mining under other constructions, this paper proposed the principal parts of the regulations according to the deformation and failure characteristics of highway caused by the effect of coal mining.The study provided the supports about theories and mining technologies for extracting unexploited coal under highway, increasing the coal production, optimizing mining design, prolonging the coal mine life and put forward some constructive suggestions for completing the regulations in the coal mining area in China.
The Deformation and Failure Characteristics Research of the Roof Rocks in Anchorage Areas
Authors: Wu Shi Bo
Published: August 2013

Aiming at the problems that local roof falls during the roadway driving, similar simulation experiment and numerical analysis experiment is designed to compare and analysis the deformation and failure characteristics in anchorage areas for different supporting forms. The results show that: if the A3 round steelanchoris used to support in the experiment, the rocks loaded 240kg began to appear local caving, the roof loaded 360kg appear fully caving, the ultimate bearing capacity of the roof support structure is achieved, the falling height is 2.4m above the roof. As the distance beyond the bolt anchorage range, the stability of the roof is hardly to maintain. When we choose deformed steel bar bolt, the bearing capacity of supporting structure reach to 624 kg, 73% is increased compared to A3 round steel anchor, and the capacity is greater than the actual load in the overburden; the deformed steel bar bolt make the roof form a complete anchorage structure, increase the bearing capacity of the roof structure.
The Detection Research of Roadway Roof Strata Structure in Coal Seam
Authors: Zhang Qing Xiang , Jia Hou Sheng , Fan Long , Zhao Xi Dong , Wang Zhi Gang , Xing Jun Long
Published: August 2013

Through the structure instability theory analysis of the coal roadway roof ,the author concluded that mechanical properties of rock, location, thickness and thickness ratio is the main factor affecting the instability and failure of rock structure. Capitalize on the roof caving hidden danger detector developed by the China university of mining and technology to synchronize, continuous and intensive monitor the rotational speed, thrust for synchronization and thrust. Based on the record ,the author inferred the coal seam roof lithology and rock structures of the different drilling location. Engineering practice shows that the use of roof caving hidden danger detector to identify lithology of strata and structure is in good agreement with the core test values. Coincidence rate reached 95.14% and the recognition effect is quite good.
Research and Application of Ventilation Simulation and Monitoring System in Chensilou Coal Mine
Authors: Fang Chun Mian , Ma Heng
Published: August 2013

Mine ventilation simulation system is a set of advanced, reliable and practical ventilation simulation system, which has a function of ventilation system simulation and visualization. It solved the technical problems such as automatic establishment and management of the topological relations, automatic identification of diagonal connection and air distribution according to demand under fixed cut set. According to the complexity of ChenSiLou coal mine ventilation system, the detailed analysis research is carried on. Mine ventilation simulation system has a successful connection with the mine monitoring system, realizing the real-time monitoring and real-time query. The technology is taken to optimize and transform the ventilation system of the mine. To ensure that the optimization and transformation of the ventilation system of the mine are carried out successfully, it simulated the ventilation system reconstruction scheme of the mine .The final plan is determined and has obtained the good effect of field application.
Coupling Flow-Reaction-Transmission during Square Column Leaching Processes
Authors: Liu Jin Zhi , Li Yu Hang , Yang Bao Hua
Published: August 2013

This paper designs a square column leaching experiment to probe the coupling flow-reaction-transmission. 2.372 kg of Yanglas copper ore with a grade of 1.25% was loaded in a 6×6 cm2 column whose height is 60 cm. A 28-day leaching gave an approximate copper yield of 14.5 gram, which is an equivalence of copper leaching rate being 50%. Hydraulic conductivity was measured. The changing trends are analyzed by mathematical analysis software Eviews and Matlab, and the numerical simulation was conducted.
Evaluation of Stress-Controlled Permeability of Coal Fractures - A Laboratory Study
Authors: Cai Yi Dong , Liu Da Meng , Yao Yan Bin , Zhang Bai Ren , Li Jun Qian , Qiu Yong Kai
Published: August 2013

Experiments on coal permeability with saturated water under tri-axial stress were conducted. The relationship between stress and permeability under tri-axial stress was analyzed on the rock mechanical experimental rig (GAW-2000). After the experiments on permeability, the fracture characteristics were researched by X-ray computerized tomography, which shows that the bituminous coal normally has high fractal dimensions (generally over 1.8) and wide aperture. The results for permeability reveal that bituminous coals always have variable permeability characteristics under incremental axial stress due to its inherent fracture features. It can be divided into two types: type I, at the linear and nonlinear elastic deformation and peak stage, the permeability keeps rising, which is represented by FYGY8 #. The main control factor of permeability should be related to coal microfractures and coal compositions. Type II, which is represented by sample YCLZ2#, in the initial linear elastic stage, there is a decrease trend in the permeability performance, and then permeability gradually rise when it comes into the stage of nonlinear elastic deformation. The permeability will keep go down after coal becomes soften under the action of confining pressure, compaction.
Analysis of the Dynamic Pressure Characteristics for Rock Fracturation under High Intensity Mining
Authors: Li Qing Feng , Zhu Chuan Qu
Published: August 2013

With the increase of mining intensity, mining causes significant dynamic disturbance and dynamic disasters, which have exerted a great influence on the safety and high-efficiency of production. This article based on the study of the displacement tendency of the rock masses on or under fractured face of the key layer, deduces the vertical stress calculation formula of the rock mass under the fractured face which indicates that the vertical stress is correlative with the length of fault block in key layer, the depth of key layer, the distance between key layer and mining coal seam, the equivalent elastic modulus of coal stratum underlying the key layer and so on; And then by numerical simulation, it studies the dynamic disturbance effect on front coal-rock masses as the key layer fractures which shows that dynamic disturbance effect caused by high intensity mining is relatively conspicuous on the fractured stratum (the key layer), the stratum under the fractured one and the stratum in the advancing direction of working face; As for the stratum on the fractured one (the key layer),the dynamic disturbance effect becomes less conspicuous as they grow farther away from the fractured one.
Application of Fuzzy Mathematics in the Networks Optimization of Mine Ventilation System
Authors: Han Meng Wei , Xie Xian Ping , Luo Shi Yun
Published: August 2013

The metal mine ventilation system is a complex system composed of interactive factors. To get a relative impersonal assessment result of the metal mine ventilation system, the issues, network optimization and program optimization, were discussed and the fuzzy optimization of metal min ventilation system was presented in this paper. Based on the two classic nonlinear programming models for mine ventilation networks, the mathematical model of fuzzy optimization for mine ventilation networks was put forward. A algorithm principle is provided for solving the superior support in a quicker and easier way.
Bolt-Grouting Support in Soft Rock Chamber of Coal Mine
Authors: Lv Hua Wen
Published: August 2013

The soft rock stratum, possessing the characteristics of poor anchorage and large deformation, is frequently encountered in underground coal excavation where stability of the whole mining structure is always affected by the soft rock. Therefore, the bolt-grouting support technology in pursuit of an effective way for stability control of soft rock chamber of coal mine in china is conducted. Meanwhile, strata behaviors monitoring is carried out in the chamber to verify effect of bolt-grouting support. The results demonstrate that bolt-grouting goes well in soft rock chamber support.