Caspase-3 is the major factor in apoptosis triggered by various stimuli, and plays a critical role during the apoptosis process. By using CaspGLOWTM fluorescein active caspase-3 staining method, caspase-3 enzymatic ac...Caspase-3 is the major factor in apoptosis triggered by various stimuli, and plays a critical role during the apoptosis process. By using CaspGLOWTM fluorescein active caspase-3 staining method, caspase-3 enzymatic activities were detected in response to alginic acid bacteria in Laminaria japonica sporophytic tissues. Results showed that caspase-3 enzymatic activities were observed at 5 min after the infection. Caspase-3 enzymatic activity increased with the infection time, and had a tendency of moving from the infection site to outside. By applying caspase-specific peptide inhibitor Z-VAD-FMK, caspase-3 activation could be effectively abolished in the infected tissues. Our results indicate that programmed cell death (PCD) may be involved in the infected Laminaria japonica sporophytic tissues, and provide the evidence that defense mechanisms in algae may have similar caspase cascade events in animals.展开更多
A routing algorithm called DNH for increasing efficiency of mobile ad hoc network is presented, which is based on a new criterion called TSS ( Temporarily Steady State) , combining with wireless transmission theory th...A routing algorithm called DNH for increasing efficiency of mobile ad hoc network is presented, which is based on a new criterion called TSS ( Temporarily Steady State) , combining with wireless transmission theory that makes networks topology correspondingly stabilization. Also the DNH algorithm has the characteristics of giving up queuing in a node, but selecting another idle node instead of the node for forwarding data packets if the node has a full throughput. Simulation evaluation shows that selecting another node is better than queuing in a full throughout node if some conditions are satisfied, especially during a sea battle, every warship in ad hoc network wants to contest time and increase propagation reliability. The DNH algorithm can help decrease routing time, and raise efficiency of marine ad hoc networks.展开更多
The Wavelet-Domain Projection Pursuit Learning Network (WDPPLN) is proposedfor restoring degraded image. The new network combines the advantages of both projectionpursuit and wavelet shrinkage. Restoring image is very...The Wavelet-Domain Projection Pursuit Learning Network (WDPPLN) is proposedfor restoring degraded image. The new network combines the advantages of both projectionpursuit and wavelet shrinkage. Restoring image is very difficult when little is known about apriori knowledge for multisource degraded factors. WDPPLN successfully resolves this problemby separately processing wavelet coefficients and scale coefficients. Parameters in WDPPLN,which are used to simulate degraded factors, are estimated via WDPPLN training, using scalecoefficients. Also, WDPPLN uses soft-threshold of wavelet shrinkage technique to suppress noisein three high frequency subbands. The new method is compared with the traditional methodsand the Projection Pursuit Learning Network (PPLN) method. Experimental results demonstratethat it is an effective method for unsupervised restoring degraded image.展开更多
Education informatization plays an increasingly prominent supporting and leading role in education reform and development. Currently, accelerating education informatization still faces many difficulties and problems. ...Education informatization plays an increasingly prominent supporting and leading role in education reform and development. Currently, accelerating education informatization still faces many difficulties and problems. Compared with the requirements of the CPC Central Committee and the State Council, and compared with the level of deep application and integration innovation in developed countries, there are still gaps and many problems. At present, cloud computing, big data, Internet of Things, mobile computing and other new technologies are gradually widely used, the pace of informatization in all sectors of the economy and society is accelerating, the overall level of informatization in society is deepening, and the revolutionary impact of information technology on education is becoming increasingly obvious. Under the general trend of such technology, the cloud platform of comprehensive business based on cloud computing technology will be planned and built in an overall way to provide strong support for medical teaching, scientific research, innovation and development of faculty and students of the university. The integrated business platform provides cloud services such as standard IT infrastructure, student training platform, medical teaching and research, scientific research and development, and "entrepreneurship and innovation". Students and teachers can access and use IT at any time through the network. The content of each service can be customized and expanded according to the requirements of teachers and students. With the promotion of the service, the audience can be extended from teachers and students to users outside the school.展开更多
New technologies, such as 5G, AI and cloud computing, are pushing forward the fourth industrial revolution, pushing forward the digital transformation of university management, and remarkable achievements have been ma...New technologies, such as 5G, AI and cloud computing, are pushing forward the fourth industrial revolution, pushing forward the digital transformation of university management, and remarkable achievements have been made in university information construction. With the continuous development of big data, university network security has also become a major concern. Therefore, this paper first introduces the characteristics of university network from the perspective of big data, and then introduces the security risks of university network from the perspective of big data, which can provide the corresponding solutions to these problems.展开更多
基金the Key Research and Development Program of Hunan province(2020WK2008)the Talent Scholars of Hunan Province for the Innovation of Science and Technology(2020RC5002)the Natural Science Foundation of Hunan Province(2021JJ31130,2020JJ5903),China.
文摘Caspase-3 is the major factor in apoptosis triggered by various stimuli, and plays a critical role during the apoptosis process. By using CaspGLOWTM fluorescein active caspase-3 staining method, caspase-3 enzymatic activities were detected in response to alginic acid bacteria in Laminaria japonica sporophytic tissues. Results showed that caspase-3 enzymatic activities were observed at 5 min after the infection. Caspase-3 enzymatic activity increased with the infection time, and had a tendency of moving from the infection site to outside. By applying caspase-specific peptide inhibitor Z-VAD-FMK, caspase-3 activation could be effectively abolished in the infected tissues. Our results indicate that programmed cell death (PCD) may be involved in the infected Laminaria japonica sporophytic tissues, and provide the evidence that defense mechanisms in algae may have similar caspase cascade events in animals.
文摘A routing algorithm called DNH for increasing efficiency of mobile ad hoc network is presented, which is based on a new criterion called TSS ( Temporarily Steady State) , combining with wireless transmission theory that makes networks topology correspondingly stabilization. Also the DNH algorithm has the characteristics of giving up queuing in a node, but selecting another idle node instead of the node for forwarding data packets if the node has a full throughput. Simulation evaluation shows that selecting another node is better than queuing in a full throughout node if some conditions are satisfied, especially during a sea battle, every warship in ad hoc network wants to contest time and increase propagation reliability. The DNH algorithm can help decrease routing time, and raise efficiency of marine ad hoc networks.
文摘The Wavelet-Domain Projection Pursuit Learning Network (WDPPLN) is proposedfor restoring degraded image. The new network combines the advantages of both projectionpursuit and wavelet shrinkage. Restoring image is very difficult when little is known about apriori knowledge for multisource degraded factors. WDPPLN successfully resolves this problemby separately processing wavelet coefficients and scale coefficients. Parameters in WDPPLN,which are used to simulate degraded factors, are estimated via WDPPLN training, using scalecoefficients. Also, WDPPLN uses soft-threshold of wavelet shrinkage technique to suppress noisein three high frequency subbands. The new method is compared with the traditional methodsand the Projection Pursuit Learning Network (PPLN) method. Experimental results demonstratethat it is an effective method for unsupervised restoring degraded image.
文摘Education informatization plays an increasingly prominent supporting and leading role in education reform and development. Currently, accelerating education informatization still faces many difficulties and problems. Compared with the requirements of the CPC Central Committee and the State Council, and compared with the level of deep application and integration innovation in developed countries, there are still gaps and many problems. At present, cloud computing, big data, Internet of Things, mobile computing and other new technologies are gradually widely used, the pace of informatization in all sectors of the economy and society is accelerating, the overall level of informatization in society is deepening, and the revolutionary impact of information technology on education is becoming increasingly obvious. Under the general trend of such technology, the cloud platform of comprehensive business based on cloud computing technology will be planned and built in an overall way to provide strong support for medical teaching, scientific research, innovation and development of faculty and students of the university. The integrated business platform provides cloud services such as standard IT infrastructure, student training platform, medical teaching and research, scientific research and development, and "entrepreneurship and innovation". Students and teachers can access and use IT at any time through the network. The content of each service can be customized and expanded according to the requirements of teachers and students. With the promotion of the service, the audience can be extended from teachers and students to users outside the school.
文摘New technologies, such as 5G, AI and cloud computing, are pushing forward the fourth industrial revolution, pushing forward the digital transformation of university management, and remarkable achievements have been made in university information construction. With the continuous development of big data, university network security has also become a major concern. Therefore, this paper first introduces the characteristics of university network from the perspective of big data, and then introduces the security risks of university network from the perspective of big data, which can provide the corresponding solutions to these problems.
