Urban sprawl is a worldwide phenomenon especially in fast developing regions of China which is a typical representative. The study on the spatiotemporal characteristics of urban sprawl and urban pattern is useful for land sustainable management and urban land planning. This research explores the spatiotemporal dynamics of urban sprawl in the context of a rapid urbanization process in a booming economic region of southern China from 1979 to 2005. Three urban sprawl types are distinguished based on analyzing overlaid urban area maps of each two adjacent study years which originates from the interpretation of remote sensed images and the vector land use maps. The landscape metrics are used to analyze the spatiotemporal pattern of urban sprawl for each study period. The study results show that urban areas have expanded dramatically, and the spatiotemporal landscape pattern configured by three sprawl types changed obviously.
The long-distance ore pipeline transportation is a new and high-tech industry, which is non-polluting, zero emissions, and in line with the strategy needs of national low-carbon economy and energy demand reduction. The long-distance ore transport needs multi-station pumping station transportation, however, the low concentration slurry that does not match the technological requirements, such as slurry head and so on. This paper designs a circulation mud system used in long-distance pipeline transportation, which solves the following issues: (1) the technical pool can't storage water during the period of cleaning mine, so can't meet the needs of non-suspension production; (2) slurry spot cool dry easy to bring serious environmental pollution; (3) the refined iron dug out from the process pool need transport to iron and steel industry, trucking transportation needs a huge costs. Experience has shown that the system effectively improve the production efficiency and propagate.
In this paper, the design and development of an automatic weather station monitoring is described. The proposed system
consists of a set of sensors for measuring meteorological parameters (temperature, wind speed & direction, rain fall,
visibility, etc.). To increase the reliability of the system, wind speed & direction are measured redundantly with duplicate
sensors. The sensor signals are collected by the data logger CR1000 at several analog and digital inputs. The CR1000 and
the sensors form a completely autonomous system which works with the other systems installed in the container.
Communication with the master PC is accomplished over the method of Code Division Multiple Access (CDMA) with the
Compact Caimore6550P CDMA DTU. The data are finally stored in tables on the CPU as well as on the CF-Card. The
weather station was built as an efficient autonomous system which operates with the other systems to provide the required
data for a fully automatic measurement system.
Utilization of the developed digital archives could stimulate the spirit of humanity and creativity, especially for Chinese
people in Taiwan, and also satisfy cultural passion and pursuit of knowledge. Furthermore, this study creates simulated
informational digital archives of Tainan Chih-Kan-Tower in order to effectively integrate the multiple unique and useful
historical records and information. Examples include Chih-Kan- Tower's historical change and Taiwan's ancient map.
The study also creates a three dimension (3D) visualization and a two dimension (2D) motion video which, provided
by Google Earth, can enhance the experience of media interaction, improve cultural interaction as well as multi-level
knowledge by better understanding . With further research on application of digital archives in multiple facets, the finally
developed digital archives have great potential to become a very useful tool to promote the most valuable cultural
heritage in the nation.
This paper will introduce the Hilbert-Huang Transform for Analysis of Universal blind steganalysis detection task.
Firstly, This method use its efficient unsteady-state modeling ability to constucte features of steganography object and
adopt independent variable analysis method to extract and refine feature. In the classification stage, by constructing the
compound ANOVN kernel function of the Steganalysis field to improve data processing capabilities of nonlinear.
To investigate the difference of the selected-rate of undergraduates' depression with respect to time, gender and scales and
the intervention effect of embodied exercise, 201 Undergraduates were measured with Self-Rating Depression Scale and
Beck Depression Inventory (BDI).The result shows there are significant difference of the selected-rates of undergraduates'
depression resulted from long-time interval rather than from short-time interval and gender. After the intervention, the
selected-rates are decreased and no significant difference has been found between the embodied groups and the controlled
group. Only the embodied groups maintain the better effects of the intervention in the tracking. Also the result shows that
only the participants of embodied groups obtain more positive emotional experience. We conclude that there is significant
difference of selected-rate of undergraduates' depression on scales, and the embodied exercise can effectively reduce
To guarantee the quality of the urban geographical inspection data construction and the effectiveness of the data of the
urban environment, in accordance with the urban environment geographical assessment regulations, based on the analysis
of the urban environment data inspection and checking requirements, the quality inspection factors that are in accordance
with the urban environment geographical database are worked out, and the urban environment database checking and
accepting system is being analyzed and function being designed in this thesis, and finally the urban environment database
checking and accepting system software is developed with the explorative instruments of Delphi and VC. With
computer-aided inspection and manual sampling checking, all the aspects of the database have strict quality control and
Long-distance pipeline transportation of iron ore is a very good method to solve the iron ore delivering outside, and also suitable for the western complicated terrain and convenient traffic. Before the pipeline transporting the slurry, you need a low concentration of slurry (slurry concentration of less than 68%) that is concentrated and then transport to the mixing tank to mix uniformly. There will be a small amount of selected birth to mine in the upper reaches of the production process, which resulting concentration of slurry concentrated pool is low, and thus it can not meet the requirements that we have set concentration of slurry concentration, so the slurry can not be sent to the mixing tank, and the production is affected ultimately. Therefore, this paper presents a method of circulatory system and slurry delivery to solve such problems. It has been proved in practice that the system effectively improve the production and generalization efficiently.
Throughput of port is an important quantitative indicator reflecting the port producing and managing results, while it's also an important quantitative indicator of the construction of international shipping center of Shanghai. Besides, throughput of port is a quantitative reference measuring the level of development and construction of a country, region or a city. There are many factors affecting the. From several throughput of port affecting factors, in this article, with the help of SSRS13.0, we used factor analysis based on empirical analysis of Shanghai to extract fatal factors and analyze the inherent mechanism of throughput of port, and aimed to make some suggestions for the establishment of international shipping center of Shanghai.
Elevator is the vertical vehicle of modern high building,which has close relationship with the life of people.The elevator
developed very quickly with the increasing demand of people.The drag of elevator developed to use the frequency
conversion and voltage transformation to realize the speed regulation.The logic control of elevator is accomplished by
PLC instead of relay control.The article uses the PLC to control the elevator based on existed current frequency
transformer.Through the resonable choice and design,we can increase the control level of the elevator,and improve the
safety and comfortable feeling of elevator,and obtain perfect contrl effect.
It is need to obtain the hydrologic data including ocean current,wave, temperature and so on in South China Sea. A new
profiling instrument which doesn't suffer from nature forces or incidents caused by passing ships is under development to
recover data from this area. It incorporates a small, instrumented vertically profiling float attached via an
electromechanical cable to a winch integral with the main subsurface flotation. On a pre-set schedule, the instrument float
carrying sensors is winched up to the surface and defined by an on-board miniature sonar if there is no ship passing by. It
can be immediately winched down to a certain depth if the sonar sensor finds something is coming. Because of logistics,
the area can only be visited once for a long time and a minimum of 10 times per day. So the system has been designed to
conserve a substantial portion of the potential energy and subsequently use this energy to pull the instrument down.