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Coal is typical of sedimentary deposits, Occurrence in a coal basin. The original nearly horizontal continuous coal seam was divided into different size; different depth containing coal segment by late tectonic movement, but its scope is not affected by today's "basin" restrictions. With the concept of coal occurrence tectonic unit to reflect the current Coal Occurrence Characteristics and build a prototype coal basin types that prototype into a coal basin tectonic movement after the formation of today's coal occurrence tectonic unit. In Northwest coal hosting area, the main coal bearing strata include Carboniferous-Permian, Upper Triassic, Lower-Middle Jurassic and Lower Cretaceous, and its distribution is regular; the center and strength of coal accumulation were variation in different coal-forming period; the types of basin are multiple, including Passive Margins, Peripheral Foreland, Intracontinental Rift, Intermontane, Strike-slip pull-apart, Strike-slip pull-apart, Inter-montane; moreover, one belt and two rings constitute the tectonic framework of Northwest coal hosting area.

Using contrast analytic method and take the coal-control structural pattern as the master line summarized the differences of coalfield structure characteristic in Jilin Province. Generally speaking, in the north, the extensional action is the most pattern, however, in the south of Jilin, the main structural pattern is compressions. In North, fault and block combination is the main pattern, the coal distribution range is relatively bigger; however, In south, the mainly are compression patterns such as the combination of reverse and thrust, thus, coal measures are obviously destructed and have smaller extent. Moreover, the structure difference above between south and north is also closely with their tectonic position and experience of tectonic evolution.

This paper based on the previous researcher's work, studied the regional structure pattern and tectonic evolution history of Hunan. It combined the coalfield structure research method and Hunans actual situation showed that coal occurrence in Hunan controlled by the regional tectonic framework and tectonic evolution history. The coal occurrence has the conspicuous characteristics of partition, zoning and Classification. Synthesize the plans of geotectonic unit division and coal occurrence unit division, we proposed the new concept of occurrence tectonic unit of coal, divided Hunan into two secondary and five third occurrence tectonic units of coal and studied the characteristics of each unit. We also divided three types of the styles of structure control of coal.

The current home-school information interconnected system universal exists many problems, such as expensive communication, high-tech request, scattered messages sending and so on, which seriously limit the development of collaborative education, and affect students healthy development. Based on this, the author constructed a free home-school interactive system, which could polymerize information, and free send students personal information in school to parents' mobile phone by using advanced network and communication technology. To a certain extent, it could improve the effect of current home-school communication, and enhance the participation of collaborative education, as a result of promoting students healthy development.

Boli coal basin has abundant coal resources and its structure shows southward protruding arcuate structure. There is difference about basement in western and eastern, so it can be further divided into continental craton basement in west and continental craton edge active zone basement in east. For this reason, the coal-bearing strata at the west is stable and its structure is relatively simple. On the contrary the eastern coal-bearing strata is less, poor-quality and thickness is unstable. There are two groups of faults and four folds that mainly control coal-bearing strata distribution. It can be divided into six coal-controlled structural styles in Boli coal basin based on system analysis and summarized about geological exploration data.

The coalfield sructure is mainly influenced by the Tethyan Geodynamics system and ancient Asia Geodynamics system in the northwest region, but theres no unified understanding for the coal occurrence tectonic unit yet. Based on the characteristics of coal-bearing strata of the northwest region, the northwest coal occurrence tectonic unit is divided into three systems: the northwest coal occurrence tectonic region, 3 coal occurrence tectonic sub-regions, 16 coal occurrence tectonic belts (points). Based on geodynamics theory and coal-controlling characteristics as the leading clue, this paper explores the basic coal-controlling characteristics in the sub-regions, and studies on the sructure characteristics of the Tianshan Orogen and the Qilian Orogen that impact the coal measure deformation. To carry out a study of the northwest region coal occurrence tectonic units, is of great significance for the evaluation and exploration of coal resources.

This paper proposed concepts of virtual design and implementation of packaging folding carton, discussed the construction forms and methods of virtual packaging design and analyzed the model and forming process of virtual packaging design. This paper then applied slash design method to the virtual design of packaging triangular as well as multi-faceted carton and applied the angle bisector design method to the virtual design of packaging trapezoidal carton. This paper also demonstrated the forming process of virtual packaging carton.

A robust fault detection approach for network-based system is discussed in this paper. The fault detection problem is converted into fault detection filter design. The network-induced delay is assumed to have both the upper bound and the lower bound, which is more general compared with only considering the upper bound. The Lyapunov-Krasovskii functional and the linear matrix inequality (LMI)-based procedure are adopted to design the filter. And the filter can guarantee that the estimation error satisfies the H∞ constraint. Fault detection filter is designed for a flight control system and the effectiveness is verified by the simulation results.

At present a set of wholly mature design methods of impeller theory based on existential experiences do not exist, because of the complexity of internal flow characteristics of centrifugal fan. Therfore it will undoubtedly provide helps for the improving of existing mehtods to fully master the existed successful experience. Based on statistical datas, some new methods used to determine the main geometric parameters of centrifugal fan’s impeller was proposed in this paper.The paper analyzes the internal relations between a large number of existing aerodynamic sketches and performance parameters of centrifugal fans by means of statistical method and finds regularity, so provides help for simplifing calculation procedures and improving the reliability of impeller design.

In recent years, the internal combustion engine has been widely used through technological advances to improve its environmental performance. Mechanical and electrical integration of the engine turbocharging system is based on conventional turbocharging system to increase motor in parallel with the turbocharger and the corresponding reversible energy storage components, so that achieve by adjusting the energy input or output direction and the size of the motor to adjust the exhaust turbocharger operating point and the gas supply function. According to matching requirements of light vehicle diesel engine, the analysis model of exhaust gas energy is obtained through qualitative analysis of exhaust gas energy in turbocharged diesel engine.

The continuously variable transmission (CVT) offers the potential of allowing the engine operate near the optimal efficiency curve throughout a continuous range of velocity ratios. So the fuel economy of the automobile will be improved distinctly with the CVT having high mechanical efficiency. The double parameter shifting rule is used more frequently in the automatic transmission. The accurate model of CVT was developed and integrated with the control strategy in this paper. The CVT enables the engine to operate under the most economical conditions, which makes the fuel consumption be reduced and the efficiency be improved.

Drive axle assembly is one of the key components of automotive, and the design quality of drive axle assembly can affect the driving performance, fuel consumption and serve life of vehicle greatly, therefore it is very important to adopt optimization to design the final drive and planetary transmission of vehicle. To reduce size and weight of transmission, the objective function should be specified that the sum of volume of pitch cylinder of sun gear and planet gears in planetary transmission incline to minimum. The objective function with penalty terms is built by penalty strategy with addition type, so as to transform the constrained optimization into the unconstrained optimization.Then the simulated annealing algorithm based on penalty strategy is adopted to solver the optimization model.

A turbocharger is fitted to a diesel in order to enhance the inlet charge pressure, hence increasing the fresh air in the cylinder, then more fuel can be injected into the cylinder and sequentially more engine power can put out. The electrical aided turbocharged system is a mechanism adding a high speed electronic motor into a turbocharger shaft. The electronic motor can work as a motor to drive the turbocharger shaft and as a generator to generate electricity energy to storage energy. According to certain constraint conditions, the controlling strategy of the hybrid turbocharged system is presented. The simulation results about key work points reveal that controlling the turbocharged engine following the strategy can enhance the engine performance.

The impeller is the important pneumatic part of centrifugal fan, and its structure performances are key factors which affect the whole performances of fan. The CAD module of centrifugal fan can realize the automation of aerodynamic force calculation. According to demands, computer can automatically complete aerodynamic force calculation and further determine major geometric parameters of impeller of fan. Speed coefficient and diametral quotient are two important parameters reflecting the character of ventilating fan. The relation curve between the speed coefficient and diametral quotient of various fans is plotted in this paper. The CAD module of impeller of centrifugal fan can realize such functions as aerodynamic design and parameterization drawing of impeller, and can accomplish rapid response from receiving design parameters to profiled impeller of fan, so that it can improve the quality of drawing.

With the rapid development of modern science and technology, the importance that control theory will be applied to mechanical engineering is increasingly evident. Matlab is a high-performance language for technical computing and Simulink provides a graphical user interface for building models as block diagrams. This article analyzes the application of the simulation software in mechanical engineering by taking position control servo system of CNC machine tool for example. Matlab also provides a function for frequency domain analysis, which has some functions of directly computing frequency response of systems, also drawing of some typical frequency response curves of the control system, and greatly simplifies the process of frequency-domain analysis. System stability can be judged from system frequency characteristic curve. According to judgment of stability of the system, characteristics of the system is easy to be observed by the simulation results, it can greatly improve quality and reliability of the programming with a friendly graphical user interface.

The robot control by PC through the wireless communication between the PC and the single-chip microcomputer not only expands the functions of the PC, but also creates more functions of the indoor service robot. Therefore utilization of the wireless communication between the PC and the robot can make full use of resources and improve the efficiency. The hardware of the indoor service robot includes the hardware of the robot control system and the hardware of the PC monitor system. The software of the indoor service robot consists of the software of the PC control software and the single-chip microcomputer control software. Therefore, the robot can autonomously walk along the track or walk under the manual control even when the robot is a long distance away.