The high-precision coal seam geographic information of fully mechanized working face is the key to realizing intelligent unmanned mining. However, the vertical precision of 3D model of coal seam constructed at this stage is low. The model cannot meet the actual needs of intelligent mining. In order to solve this problem, a dynamic modification method of 3D model of coal seam in fully mechanized working face is proposed. The static data of the initial coal seam 3D model and the dynamic data generated by the shearer cutting in the mining process are fused. The method is based on the prediction algorithms of long-short term memory (LSTM) network and its improved algorithm. The improved algorithms are based on the convolutional long-short term memory network (Conv LSTM) and encoder-decoder long-short term memory network (Encoder-Decoder LSTM). The coal seam floor curved surface and the coal seam thickness of the unmined area in the next stage are dynamically predicted according to the coal seam data of the previous mining stage. The parameters of the above three prediction algorithms are optimized by using the grid search method of double-layer loop nesting. The obtained high-precision vertical distribution data of the coal seam floor curved surface and the coal seam thickness of the unexploited area are taken as the coal seam 3D model correction value. The correction value is used to dynamically correct the coal seam 3D model of the unexploited area in the next stage. With the continuous mining of the working face, the newly obtained correction data is used to continuously and dynamically correct and update the initial coal seam 3D model, so as to improve the precision of the initial coal seam 3D model. Therefore, the dynamic modified coal seam 3D model can reflect the actual coal seam distribution of fully mechanized working face more accurately. Taking the coal seam 3D model of 18201 working face of a coal mine in Lvliang, Shanxi Province as an example, the proposed dynamic correction method is used to correct the coal seam 3D model. Within the range of 16-23.2 m in the advancing direction of the working face, the average error of the coal seam floor after the dynamic correction is 0.068 5 m. The average error of the coal seam roof is 0.076 m. Compared with the average floor error of 0.20 m and vertical average error of 0.40 m of the coal seam thickness before correction, the precision of the coal seam 3D model after dynamic correction is greatly improved. The results confirm the effectiveness of the correction method.

In this paper, we described basic connotations of comparative effectiveness research (CER), expounded the application of CER in chronic obstructive pulmonary disease (COPD). In addition, on the basis of research practice of Chinese medical treatment for COPD in recent years, we put forward the thought of the junction point of Chinese medicine in CER on COPD from the perspective in screening effective Chinese herbs, establishing treatment program/methods/technologies, and outcomes evaluation.

Introduced a kind of image acquisition and display design based on OV7670 image sensor.The design takes Altera’s CycloneIV E FPGA as a control chip,and the image signals which OV7670 collects is buffered by SDRAM(Synchronous Dynamic Random Access Memory),then the signals are taken to VGA monitor by the VGA control.The system design is able to satisfy the demand for real-time image output.

This paper has proposed a design method for SOPC of LCD driver based on FPGA. In the system of SOPC, FPGA is the core controller, NiosII embedded into an EP3C25F324C8Z of Altera CycloneIII series, and peripheral driving circuit designed. Combining modular design ideas and rich logic resources of FPGA, this paper has designed SDRAM module, FLASH module, VGA module, PLL module and other IP soft cores, which are integrated into a piece of FPGA. The LCD driver control with 640×480 dots is realized. The correctness and feasibility of FPGA-based hardware design have been verified by debugging.

In image processing, edge detection is more basic and important image processing algorithms. This paper conducted a FPGA-based image analysis algorithms and program design; system design using QuartusII, Modelsim, Matlab joint development, HDL design can be synchronized image algorithm design and effects simulation, real-time look at the image processing results, efficient and intuitive works design.

There are many complex factors influencing shrinking effect of rubber blanket preshrinking machine in preshrinking processes of dyeing and finishing.It is very difficult to realize online prediction of shrinkage and accurate and quantitative design of preshrinking technology.Based on the shrinking mechanism and analysis of deformation of the rubber blanket,a soft sensor model of relationship between shrinkage and extrusion pressure which is the biggest impact factor is built.The experimental results indicate that the relative errors of shrinkage calculated by the soft sensor model are lower than 8%,and the mean absolute percentage error is 5.104 1%.The model is feasible and efficient,providing a guide for online prediction of shrinkage and designing accurate and quantitative desing of preshrinking technology.

During preshrinking with a rubber blanket preshrinking machine,two special structured cylindrical rollers are interacted with each other so that it is difficult to determine the radial length of the rubber blanket in extrusion area,causing certain difficulties to online measurement of shrinkage.To solve this problem,the deformation process of the rubber blanket when being extruded was analyzed,some simplification of the process was made,and a mathematical model of the radial length of the rubber blanket when being extruded in extrusion area was established according to Hertz contact theory.The practical test results indicated that the relative errors of the radial length between the calculated values by the model and the practical test results are all smaller than 4%,and the mean absolute percentage error is about 2%.The validity of the model is verified.This study has provided a theoretical reference for online measurement of shrinkage in production.

The application of model making in the teaching process of basic courses in landscape mapping,garden art,landscape history et al was introduced,so as to make up for the deficiency of theoretical knowledge expounded by words and pictures,and also improve the ability of students practical operation and imagine space.

A naval vessel’s approximate ship-bow and athwartship 2-D models were modeled.By the 2-D FDTD(finite difference time domain)method,a naval vessel’s ship-bow and athwartship RCS under the incident wave with different frequencies were calculated.Then based on the results,the characteristics of radar stealth of a naval vessel were analyzed. The calculation for RCS can not only be used to analyze existing ship’s electromagnetic scattering characteristic,but also be applied to forecast and optimize future weapon system’s electromagnetic scattering characteristic requirement for target.The stealthy characters of the naval vessels were analyzed here for farther research.

The kernel morphology and characters of 10 Ginkgo biloba varieties,correlation coefficients between different characters and nucleolus soluble protein content were analyzed in Henan province.The results showed that there was difference in variation degree of kernel shape among 10 varieties,the index of kernel shape had an important significance to increase yield,and there was very difference in nucleolus soluble protein content among 10 varieties.These varieties can be used in breeding of Ginkgo biloba.

介绍园林模型的类别、制作程序,比较了模型与图纸等表达方式的优劣,分析了园林模型制作对园林设计的辅助作用。

According to the importance of the garden model making,the paper studies the making method of the terrain,its advantages and its disadvantages,mainly introduces the program of the laminated method and the gypsum heaped-overbite method,points out that the making method of the terrain by using the KT plate and the gypsum heaped-overbite method,the material is easily obtained,the method is simple and the exhibition effect is good by using the flower arrangement foam powder as the simulated vegetation.

The ancient Ginkgo population in Funiu Mountain in the west of Henan Province distributes to the south of the top of Funiu Mountain, where there are old geology, warm climate, superior environment and many kinds of Ginkgo from Paleozoic. The local have the intense sense of protecting the old trees and most villages are named as Ginkgo. From then on lots of ancient Ginkgo have still live in few people hillside.The population structure approach to nature and jamming is slight which account for the ancient Ginkgo population in the west of Henan Province maybe the nature multiplication of the ancient Ginkgo.

A comparative anatomical observation was made on leaf blades of Ginkgo biloba and 3 new cultivars. The results show that the leaf blades of Ginkgo biloba and 3 cultivars all consist of upper epidermis, palisade tissue, sponge tissue, lower epidermis. Each epidermis is composed of a row of epidermic cells which arranged closely; the palisade tissue is composed of one layer of cells. But some differences exit among the four in the density of stoma, thickness of palisade cell, thickness of vascular bundle. Besides,in the lower epidermis, double-stoma and ternary-stoma are observed.

There are 17 genera, 23 species of palms introduced in the greenhouse of the Botanical Garden for Exotic Plants in Zhengzhou. Within them, 11 species grow best and keep their fine ornamental quality; 9 species are suited the conditions of climate and soil of the greenhouse, but inferior to the species indicated above; and the other 3 species can't suit the conditions. An analysis of the above-mentioned situation is given in this paper. Some opinions or proposals to deal with the problems presented in introducing and cultivating palms in greenhouse are also put forward.