In this paper,based on the common soil erosion model,the Three-River Headwaters region was select for study object. GIS methods are applied to conduct Semi-quantitative assessment for different types of soil erosion,a...In this paper,based on the common soil erosion model,the Three-River Headwaters region was select for study object. GIS methods are applied to conduct Semi-quantitative assessment for different types of soil erosion,and some results are concluded. The water erosion occurs in High Mountain and extra-high mountain of Yushu,Nangqian,Banma and Jiuzhi County in the southeast and south of the Three-River Headwaters region. The degree of erosion is prone to topography,precipitation,river and human activity. The freeze-thaw erosion mainly distributes in the northwest of the Three-River Headwaters region. The area of middle and above middle erosion degree accounts for roughly 50%.展开更多
In the paper, the authors present their experience and results related to the design and management of the on-line course ＂Development of e-learning resources based on the EUCIP （The European Certification of Inform...In the paper, the authors present their experience and results related to the design and management of the on-line course ＂Development of e-learning resources based on the EUCIP （The European Certification of Informatics Professionals） certification scheme＂, which was organized under the auspices of the international Leonardo da Vinci project Sloop2desc （Sharing learning objects in an open perspective for development of European skills and competences）. The course was primarily aimed at teachers of informatics. Out of 64 participants that applied for the course, slightly less than 50% managed to reach the last course module. In line with other research, the authors＇ experience showed that in order to minimize participants＇ drop-out rate, a sustained communication flow between tutors and participants was necessary and specific assignments had to be provided by the tutors, along with guidance. The authors expect the participants who successfully finished the on-line course to become a some kind of ambassadors for the introduction of the EUCIP scheme in Slovenia.展开更多
After an aerial object enters the water, physical changes to sounds in the water caused by the accompanying bubbles are quite complex. As a result, traditional signal analyzing methods cannot identify the real physica...After an aerial object enters the water, physical changes to sounds in the water caused by the accompanying bubbles are quite complex. As a result, traditional signal analyzing methods cannot identify the real physical object. In view of this situation, a novel method for analyzing the sounds caused by an aerial object’s entry into water was proposed. This method analyzes the vibrational mode of the bubbles by using empitical mode decomposition. Experimental results showed that this method can efficiently remove noise and extract the broadband pulse signal and low-frequency fluctuating signal, producing an accurate resolution of entry time and frequency. This shows the improved performance of the proposed method.展开更多
With the using up of land resources, people are beginning to pay attention to the exploitation of the ocean and the use of marine resources is becoming more and more intense. Whether and how the ocean can be sustainab...With the using up of land resources, people are beginning to pay attention to the exploitation of the ocean and the use of marine resources is becoming more and more intense. Whether and how the ocean can be sustainably exploited as it is being exploited is an academic hot topic. This question is addressed in this paper based on the theories of carrying capacity of a marine region and marine eco-compensation, and the amount of the loss is calculated by the method of Time Value of Capital. This thesis covers the study of eco-compensation between two specific subjects with clear compensation objects, and as a defined approach and standard, the proposed method has good operability and positive practical significance in the good use of the ocean.展开更多
文摘In this paper,based on the common soil erosion model,the Three-River Headwaters region was select for study object. GIS methods are applied to conduct Semi-quantitative assessment for different types of soil erosion,and some results are concluded. The water erosion occurs in High Mountain and extra-high mountain of Yushu,Nangqian,Banma and Jiuzhi County in the southeast and south of the Three-River Headwaters region. The degree of erosion is prone to topography,precipitation,river and human activity. The freeze-thaw erosion mainly distributes in the northwest of the Three-River Headwaters region. The area of middle and above middle erosion degree accounts for roughly 50%.
文摘In the paper, the authors present their experience and results related to the design and management of the on-line course ＂Development of e-learning resources based on the EUCIP （The European Certification of Informatics Professionals） certification scheme＂, which was organized under the auspices of the international Leonardo da Vinci project Sloop2desc （Sharing learning objects in an open perspective for development of European skills and competences）. The course was primarily aimed at teachers of informatics. Out of 64 participants that applied for the course, slightly less than 50% managed to reach the last course module. In line with other research, the authors＇ experience showed that in order to minimize participants＇ drop-out rate, a sustained communication flow between tutors and participants was necessary and specific assignments had to be provided by the tutors, along with guidance. The authors expect the participants who successfully finished the on-line course to become a some kind of ambassadors for the introduction of the EUCIP scheme in Slovenia.
文摘After an aerial object enters the water, physical changes to sounds in the water caused by the accompanying bubbles are quite complex. As a result, traditional signal analyzing methods cannot identify the real physical object. In view of this situation, a novel method for analyzing the sounds caused by an aerial object’s entry into water was proposed. This method analyzes the vibrational mode of the bubbles by using empitical mode decomposition. Experimental results showed that this method can efficiently remove noise and extract the broadband pulse signal and low-frequency fluctuating signal, producing an accurate resolution of entry time and frequency. This shows the improved performance of the proposed method.
基金supported financially by projects of the National Science and Foundation of China (41106094, 30800841)Department of Science and Technology of Shandong Province (BS2010NY030)
文摘With the using up of land resources, people are beginning to pay attention to the exploitation of the ocean and the use of marine resources is becoming more and more intense. Whether and how the ocean can be sustainably exploited as it is being exploited is an academic hot topic. This question is addressed in this paper based on the theories of carrying capacity of a marine region and marine eco-compensation, and the amount of the loss is calculated by the method of Time Value of Capital. This thesis covers the study of eco-compensation between two specific subjects with clear compensation objects, and as a defined approach and standard, the proposed method has good operability and positive practical significance in the good use of the ocean.
