Transmission Control Protocol (TCP) optimization in Mobile Ad hoc NETworks (MANETs) is a challenging issue because of some unique characteristics of MANETs. In this paper,a new end-to-end mechanism based on multiple m...Transmission Control Protocol (TCP) optimization in Mobile Ad hoc NETworks (MANETs) is a challenging issue because of some unique characteristics of MANETs. In this paper,a new end-to-end mechanism based on multiple metrics measurement is proposed to improve TCP performance in MANETs. Multi-metric Measurement based Enhancement of TCP (MME-TCP) designs the metrics and the identification algorithm according to the characteristics of MANETs and the experiment results. Furthermore,these metrics are measured at the sender node to reduce the overhead of control information over networks. Simulation results show that MME-TCP mechanism achieves a significant performance improvement over standard TCP in MANETs.展开更多
A novel method case-based reasoning was proposed for suspicious behavior recognition. The method is composed of three departs: human behavior decomposition, human behavior case representation and case-based reasoning....A novel method case-based reasoning was proposed for suspicious behavior recognition. The method is composed of three departs: human behavior decomposition, human behavior case representation and case-based reasoning. The new approach was proposed to decompose behavior into sub-behaviors that are easier to recognize using a saliency-based visual attention model. New representation of behavior was introduced, in which the sub-behavior and the associated time characteristic of sub-behavior were used to represent behavior case. In the process of case-based reasoning, apart from considering the similarity of basic sub-behaviors,order factor was proposed to measure the similarity of a time order among the sub-behaviors and span factor was used to measure the similarity of duration time of each sub-behavior, which makes the similarity calculations more rational and comprehensive.Experimental results show the effectiveness of the proposed method in comparison with other related works and can run in real-time for the recognition of suspicious behaviors.展开更多
An experimental program was undertaken to test the feasibility to detect the occurrence of structural damage using a modified mode shape difference technique. The vibration response of a steel beam fixed at one end an...An experimental program was undertaken to test the feasibility to detect the occurrence of structural damage using a modified mode shape difference technique. The vibration response of a steel beam fixed at one end and hinged at the other was obtained for the intact and damage conditions. Modal analysis was performed to extract the frequencies and mode shapes. The method shows a good potential in detection of occurrence and location of damage.展开更多
In Discrete Multi-Tone (DMT) modulation systems, the well-known technique to overcome the Inter-Carrier Interference (ICI)/Inter-Symbol Interference (ISI) caused by the inadequate Cyclic Prefix (CP) length is to use a...In Discrete Multi-Tone (DMT) modulation systems, the well-known technique to overcome the Inter-Carrier Interference (ICI)/Inter-Symbol Interference (ISI) caused by the inadequate Cyclic Prefix (CP) length is to use a Time-Domain Equalizer (TDE) at the receiver front-end. An algorithm used to calculate the coefficients of the optimal shortening Time Domain Equalizer (TDE) was given by Melsa. However, this algorithm requires that the length of the TDE must be smaller than or equal to the memory length of the target impulse response. This paper modifies this algorithm and makes it not only fit for calculating the coefficients of the TDE with arbitrary length, but also have a much less computational time.展开更多
The altitudinal pattern of vegetation is usually identified by field surveys,however,these can only provide discrete data on a local mountain.Few studies identifying and analyzing the altitudinal vegetation pattern on...The altitudinal pattern of vegetation is usually identified by field surveys,however,these can only provide discrete data on a local mountain.Few studies identifying and analyzing the altitudinal vegetation pattern on a regional scale are available.This study selected central Inner Mongolia as the study area,presented a method for extracting vegetation patterns in altitudinal and horizontal directions.The data included a vegetation map at a 1∶1 000 000 scale and a digital elevation model at a 1∶250 000 scale.The three-dimensional vegetation pattern indicated the distribution probability for each vegetation type and the transition zones between different vegetation landscapes.From low to high elevations,there were five vegetation types in the southern mountain flanks,including the montane steppe,broad-leaved forest,coniferous mixed forest,montane dwarf-scrub and sub-alpine shrub-meadow.Correspondingly,only four vegetation types were found in the northern flanks,except for the montane steppe.This study could provide a general model for understanding the complexity and diversity of mountain environment and landscape.展开更多
This paper expounds how the possibility of collaboration and construction of knowledge being put into practice in a group of ICT （information and communication technologies）-based teaching and learning programmes fo...This paper expounds how the possibility of collaboration and construction of knowledge being put into practice in a group of ICT （information and communication technologies）-based teaching and learning programmes for Mother Tongue languages, collectively known as 10＇CMT. 10＇CMT, which is initiated by the ETD （Educational Technology Division） of MOE （Ministry of Education） Singapore, embodies a focus on the development of relevant pedagogy by which web-based technologies are embedded in meaningful learning activities in the classroom. Through a case study of a primary school in Singapore, this paper exemplifies how 10＇CMT has the ability to promote collective knowledge and, by doing so, essentially supporting the growth of the individual student＇s knowledge. It draws on the students＇ engagement in peer editing, peer evaluation, peer interaction, and feedback with self-reflective practices through the affordances of an array of online tools. This paper will also discuss how the 10＇CMT approach promotes the ability to respond flexibly to complex problems, to communicate effectively, to manage information, to work in teams, to use technology, and to produce new knowledge which are deemed to be crucial competencies for 21 st century.展开更多
As one of the most important and strategic actors of sustainable development, the micro-financing （MF） organizations are continuously adopting new strategic methods of collaboration for the success of their micro-fi...As one of the most important and strategic actors of sustainable development, the micro-financing （MF） organizations are continuously adopting new strategic methods of collaboration for the success of their micro-financing missions. The paper presents the case of a newly established network of MF organizations created for the strategic objective of not only collaboration but for optimizing inter-organizational knowledge sharing systems for the micro-financing services. The purpose of the paper is to show the method used for the creation of this network, the mechanisms for its management, and the dynamisms and success factor,~ leading to its continuous development. The findings are derived from an interview with one of its most strategic founders, and material is provided by the network, and a questionnaire is administered to the members of the network. The results imply theoretical implications to innovation management and organizational development and change since the source of the creation of this network is innovative, and for the competencies of the founders and their awareness of the importance of change lead to the creation of this network. And the results also lead to managerial implications in the micro-financing sector through the provision of a unique excellent command example to follow.展开更多
Objective To describe the CT features of abdominal Castleman's disease(CD)in adolescent.Methods Abdomen CT of four adolescents ranging in age from 7 years to 17 years diagnosed as abdominal region CD were reviewed...Objective To describe the CT features of abdominal Castleman's disease(CD)in adolescent.Methods Abdomen CT of four adolescents ranging in age from 7 years to 17 years diagnosed as abdominal region CD were reviewed.One case was retroperitoneal CD;one case was lesser omentum CD;and the other two cases were mesenteric CD.Three of four cases underwent post enhancement,and one case was only done no contrast CT as the reason of media hypersusceptibility.One case underwent needle biopsy.Three cases were removed by surgical resection.Results Isolated or multiple well-defined homogenous masses with homogenously enhanced after underwent enhancement was the common finding in these four cases.Conclusion Recognition of the CT features and highlights the histological specimen of CD is helpful to diagnose CD.展开更多
Given that there is a dramatic increase of the English manuscript submission rate of doctoral students, yet little research effort is devoted to this line, the author investigates the manuscript drafting strategies of...Given that there is a dramatic increase of the English manuscript submission rate of doctoral students, yet little research effort is devoted to this line, the author investigates the manuscript drafting strategies of one Taiwan Residents hydraulics major doctoral student, who was required by his department to have international publications for the qualifications for the degree. The study employs Ken Hyland＇s social constructionist approach to disciplinary writing and follows an ethnographic research method for the collection/analysis of the data. The results show that the participating student, in order to establish a professional persona for the heightening of manuscript acceptance possibility, followed some prescribed procedures such as citing higher potential journals, adhering to the expert model, and formulizing the research procedures/results. A conflicting rhetorical structure of literature review writing and the favor of doing applied research for publication purpose were also found in his writing. The author addresses the implicated meanings of these writing attempts and concludes that a ＂short-sighted operation＂ of writing attempts may undermine the value of a research. This study contributes to international scientific research communities＇ understanding of this group of writers＇ disciplinary knowledge construction and writing for publication.展开更多
By the adoption of architecture as a means for communication and discourse between the architect and the recipient, yet current arguments took the conscious of local architect away from the uniqueness and the concerns...By the adoption of architecture as a means for communication and discourse between the architect and the recipient, yet current arguments took the conscious of local architect away from the uniqueness and the concerns of the society, as well. It also dominated its creative and educational capabilities through making him distracted in formal non-rational overestimated compositions without dealing with the concerns and needs of the society and sympathize with its affection that led to the appearance of an intellectual crisis resulted from the loss of design strategy in the current trends among some Jordanian architects. As such, not only substantial amount of the leading architectural intellect had deteriorated to formal practices but also it took another approach, becoming incomplete intellectual isolation practicing an overestimated architecture that satisfies free markets requirements which appeared along with the globalization economy. This study attempts to comparatively investigate the variation in some architectural practices as a methodology based on design readings of the previous issues which were characterized of architectural uniqueness and current issues that lack of the existing intellectual references.展开更多
In order to provide an appropriate context for the current state of the heritage product in tourism industry, semiotic knowledge become an important role to know deeply the identity, philosophy, and also the meaning o...In order to provide an appropriate context for the current state of the heritage product in tourism industry, semiotic knowledge become an important role to know deeply the identity, philosophy, and also the meaning of behind the actual product. Scott （2000） stresses the requirement of aesthetic and semiotic content in a creative product, instead of creativity. But, how many of retailers and salespersons in heritage product believe the semiotic as knowledge to present the product and opportunities in their selling？ According to Kotler （2000） a good personal selling will provide a detailed explanation or demonstration of the product. The message can be varied by the salesperson to fit the motivations and interests or each prospective customer. So, the purpose of this paper is to closely examine the level of awareness among retailers and salesperson toward the important of semiotic knowledge as part of strategic persuasion in a selling process. This survey study will develop a sample among retailers and salesperson in Kuala Terengganu as a respondent who give the feedback to fulfill the research questions.展开更多
基金Supported by the National Natural Science Foundation of China (No.60496314)the Chinese 863 National High Technology Program (No.2002AA783043).
文摘Transmission Control Protocol (TCP) optimization in Mobile Ad hoc NETworks (MANETs) is a challenging issue because of some unique characteristics of MANETs. In this paper,a new end-to-end mechanism based on multiple metrics measurement is proposed to improve TCP performance in MANETs. Multi-metric Measurement based Enhancement of TCP (MME-TCP) designs the metrics and the identification algorithm according to the characteristics of MANETs and the experiment results. Furthermore,these metrics are measured at the sender node to reduce the overhead of control information over networks. Simulation results show that MME-TCP mechanism achieves a significant performance improvement over standard TCP in MANETs.
基金Project(50808025)supported by the National Natural Science Foundation of ChinaProject(2013GK3012)supported by the Science and Technology Project of Hunan Province,China
文摘A novel method case-based reasoning was proposed for suspicious behavior recognition. The method is composed of three departs: human behavior decomposition, human behavior case representation and case-based reasoning. The new approach was proposed to decompose behavior into sub-behaviors that are easier to recognize using a saliency-based visual attention model. New representation of behavior was introduced, in which the sub-behavior and the associated time characteristic of sub-behavior were used to represent behavior case. In the process of case-based reasoning, apart from considering the similarity of basic sub-behaviors,order factor was proposed to measure the similarity of a time order among the sub-behaviors and span factor was used to measure the similarity of duration time of each sub-behavior, which makes the similarity calculations more rational and comprehensive.Experimental results show the effectiveness of the proposed method in comparison with other related works and can run in real-time for the recognition of suspicious behaviors.
文摘An experimental program was undertaken to test the feasibility to detect the occurrence of structural damage using a modified mode shape difference technique. The vibration response of a steel beam fixed at one end and hinged at the other was obtained for the intact and damage conditions. Modal analysis was performed to extract the frequencies and mode shapes. The method shows a good potential in detection of occurrence and location of damage.
文摘In Discrete Multi-Tone (DMT) modulation systems, the well-known technique to overcome the Inter-Carrier Interference (ICI)/Inter-Symbol Interference (ISI) caused by the inadequate Cyclic Prefix (CP) length is to use a Time-Domain Equalizer (TDE) at the receiver front-end. An algorithm used to calculate the coefficients of the optimal shortening Time Domain Equalizer (TDE) was given by Melsa. However, this algorithm requires that the length of the TDE must be smaller than or equal to the memory length of the target impulse response. This paper modifies this algorithm and makes it not only fit for calculating the coefficients of the TDE with arbitrary length, but also have a much less computational time.
基金Under the auspices of National Natural Science Foundation of China(No.41001111,41030528)
文摘The altitudinal pattern of vegetation is usually identified by field surveys,however,these can only provide discrete data on a local mountain.Few studies identifying and analyzing the altitudinal vegetation pattern on a regional scale are available.This study selected central Inner Mongolia as the study area,presented a method for extracting vegetation patterns in altitudinal and horizontal directions.The data included a vegetation map at a 1∶1 000 000 scale and a digital elevation model at a 1∶250 000 scale.The three-dimensional vegetation pattern indicated the distribution probability for each vegetation type and the transition zones between different vegetation landscapes.From low to high elevations,there were five vegetation types in the southern mountain flanks,including the montane steppe,broad-leaved forest,coniferous mixed forest,montane dwarf-scrub and sub-alpine shrub-meadow.Correspondingly,only four vegetation types were found in the northern flanks,except for the montane steppe.This study could provide a general model for understanding the complexity and diversity of mountain environment and landscape.
文摘This paper expounds how the possibility of collaboration and construction of knowledge being put into practice in a group of ICT （information and communication technologies）-based teaching and learning programmes for Mother Tongue languages, collectively known as 10＇CMT. 10＇CMT, which is initiated by the ETD （Educational Technology Division） of MOE （Ministry of Education） Singapore, embodies a focus on the development of relevant pedagogy by which web-based technologies are embedded in meaningful learning activities in the classroom. Through a case study of a primary school in Singapore, this paper exemplifies how 10＇CMT has the ability to promote collective knowledge and, by doing so, essentially supporting the growth of the individual student＇s knowledge. It draws on the students＇ engagement in peer editing, peer evaluation, peer interaction, and feedback with self-reflective practices through the affordances of an array of online tools. This paper will also discuss how the 10＇CMT approach promotes the ability to respond flexibly to complex problems, to communicate effectively, to manage information, to work in teams, to use technology, and to produce new knowledge which are deemed to be crucial competencies for 21 st century.
文摘As one of the most important and strategic actors of sustainable development, the micro-financing （MF） organizations are continuously adopting new strategic methods of collaboration for the success of their micro-financing missions. The paper presents the case of a newly established network of MF organizations created for the strategic objective of not only collaboration but for optimizing inter-organizational knowledge sharing systems for the micro-financing services. The purpose of the paper is to show the method used for the creation of this network, the mechanisms for its management, and the dynamisms and success factor,~ leading to its continuous development. The findings are derived from an interview with one of its most strategic founders, and material is provided by the network, and a questionnaire is administered to the members of the network. The results imply theoretical implications to innovation management and organizational development and change since the source of the creation of this network is innovative, and for the competencies of the founders and their awareness of the importance of change lead to the creation of this network. And the results also lead to managerial implications in the micro-financing sector through the provision of a unique excellent command example to follow.
文摘Objective To describe the CT features of abdominal Castleman's disease(CD)in adolescent.Methods Abdomen CT of four adolescents ranging in age from 7 years to 17 years diagnosed as abdominal region CD were reviewed.One case was retroperitoneal CD;one case was lesser omentum CD;and the other two cases were mesenteric CD.Three of four cases underwent post enhancement,and one case was only done no contrast CT as the reason of media hypersusceptibility.One case underwent needle biopsy.Three cases were removed by surgical resection.Results Isolated or multiple well-defined homogenous masses with homogenously enhanced after underwent enhancement was the common finding in these four cases.Conclusion Recognition of the CT features and highlights the histological specimen of CD is helpful to diagnose CD.
文摘Given that there is a dramatic increase of the English manuscript submission rate of doctoral students, yet little research effort is devoted to this line, the author investigates the manuscript drafting strategies of one Taiwan Residents hydraulics major doctoral student, who was required by his department to have international publications for the qualifications for the degree. The study employs Ken Hyland＇s social constructionist approach to disciplinary writing and follows an ethnographic research method for the collection/analysis of the data. The results show that the participating student, in order to establish a professional persona for the heightening of manuscript acceptance possibility, followed some prescribed procedures such as citing higher potential journals, adhering to the expert model, and formulizing the research procedures/results. A conflicting rhetorical structure of literature review writing and the favor of doing applied research for publication purpose were also found in his writing. The author addresses the implicated meanings of these writing attempts and concludes that a ＂short-sighted operation＂ of writing attempts may undermine the value of a research. This study contributes to international scientific research communities＇ understanding of this group of writers＇ disciplinary knowledge construction and writing for publication.
文摘By the adoption of architecture as a means for communication and discourse between the architect and the recipient, yet current arguments took the conscious of local architect away from the uniqueness and the concerns of the society, as well. It also dominated its creative and educational capabilities through making him distracted in formal non-rational overestimated compositions without dealing with the concerns and needs of the society and sympathize with its affection that led to the appearance of an intellectual crisis resulted from the loss of design strategy in the current trends among some Jordanian architects. As such, not only substantial amount of the leading architectural intellect had deteriorated to formal practices but also it took another approach, becoming incomplete intellectual isolation practicing an overestimated architecture that satisfies free markets requirements which appeared along with the globalization economy. This study attempts to comparatively investigate the variation in some architectural practices as a methodology based on design readings of the previous issues which were characterized of architectural uniqueness and current issues that lack of the existing intellectual references.
文摘In order to provide an appropriate context for the current state of the heritage product in tourism industry, semiotic knowledge become an important role to know deeply the identity, philosophy, and also the meaning of behind the actual product. Scott （2000） stresses the requirement of aesthetic and semiotic content in a creative product, instead of creativity. But, how many of retailers and salespersons in heritage product believe the semiotic as knowledge to present the product and opportunities in their selling？ According to Kotler （2000） a good personal selling will provide a detailed explanation or demonstration of the product. The message can be varied by the salesperson to fit the motivations and interests or each prospective customer. So, the purpose of this paper is to closely examine the level of awareness among retailers and salesperson toward the important of semiotic knowledge as part of strategic persuasion in a selling process. This survey study will develop a sample among retailers and salesperson in Kuala Terengganu as a respondent who give the feedback to fulfill the research questions.
