针对现有的基于历史信息预测的机会网络路由算法(history based prediction for routing in infrastructure-less opportunistic networks,HBPR)在归属位置单元表更新阶段存在的开销冗余和消息转发阶段存在中继节点选择不合理等问题,提...针对现有的基于历史信息预测的机会网络路由算法(history based prediction for routing in infrastructure-less opportunistic networks,HBPR)在归属位置单元表更新阶段存在的开销冗余和消息转发阶段存在中继节点选择不合理等问题,提出了1种基于社会关系的低时延机会网络路由算法(a low delay routing algorithm for opportunistic networks based on social relations,LDSR),利用节点社会关系和地理位置信息来选择路由,简化了控制信息;在整个网络区域内设定多个归属位置单元,并在选取中继节点时,以选择与目的节点所在归属位置单元社会关系密切的节点,以及以选择能够缩短携带消息节点与目的节点归属位置单元之间距离的节点为辅。仿真结果表明,与HBPR算法相比,LDSR算法的平均端到端时延缩短了20%。展开更多
Some recent studies presented two existing types of ENSO events, one is the Eastern-Pacific(EP) type and the other the Central-Pacific(CP) type. This study examined the monitoring ability of several current operationa...Some recent studies presented two existing types of ENSO events, one is the Eastern-Pacific(EP) type and the other the Central-Pacific(CP) type. This study examined the monitoring ability of several current operational ENSO indices. The results indicated that a single index could not distinguish the EP and CP in the historical ENSO events during 1950-2009. The Nio 3 index may only be suitable for monitoring the EP-type ENSO, while the Nio 4 index works only for the CP-type ENSO. In order to capture the occurrence of ENSO events and distinguish the type, we considered a new monitoring index group using Nio 3 and Nio 4 indices. Further analysis confirmed that this index group can monitor different types of historical ENSO events with different spatial distribution of sea surface temperature. It has a good performance in determining the characteristics of the ENSO events, including peak intensity, onset,decay, and mature phase.展开更多
There are over 100 historically black colleges and universities （HBCUs） in the United States. The majority of these HBCUs are located in the southeast section of the United States. HBCUs are a major supplier of cert...There are over 100 historically black colleges and universities （HBCUs） in the United States. The majority of these HBCUs are located in the southeast section of the United States. HBCUs are a major supplier of certified public accountants （CPAs） to the profession. Therefore, the performance of candidates from HBCUs should be of interest to various constituents including educators, employers, parents, students, and other stakeholders. The purpose of this paper is to provide statistical performance on the 2011 CPA examination for large, middle, and small HBCUs based upon the number of testing events taken. Taking a testing event is not the same as passing a testing event. This was the dichotomy between quantity and quality of HBCUs＇ performances. For large HBCUs, Morehouse University, North Carolina Agricultural and Technical State University （NC A＆T）, and Tennessee State University （TSU） were cited. For middle HBCUs, Albany State University, Norfolk State University （NSU）, and North Carolina Central University （NCCU） were cited. For small HBCUs, Alcorn State University, Fisk University, and University of Maryland Eastern Shore （UMES） were cited. The dichotomy between quantity and quality is real.展开更多
This paper aims to compare and contrast two site-specific performance productions, both designed to grapple with processes of cultural remembrance, whilst also operating as successful tourist attractions. The narrativ...This paper aims to compare and contrast two site-specific performance productions, both designed to grapple with processes of cultural remembrance, whilst also operating as successful tourist attractions. The narratives encompassed by both productions revolve around shared Australian histories, for audiences attracted by place and what it is able to represent. Re-enactments of past events call into the present a consideration of what still remains, with both shows enabling new subjective interpretations of earlier times. The defining difference between the two, however, rests in the context of each performance, in the one case as a commodification of heritage and in the other case as the desire to produce an artistic yet popular theatrical product. Ballarat＇s, Sovereign Hill＇s light and sound show, Blood on the Southern Cross celebrates and commemorates, in mega-spectacle style, the Eureka Stockade, one of Australia＇s key historical events. Using a mechanised display of the original goldmining site of the Eureka rebellion, the performance is operated by computers with video-projection, multi-phonic sound, and moving model forms, with audiences moved around the massive site on transporters. The Piccolo Tales, a contrasting performance most notably in terms of size, unfolds the history of Kings Cross, through its setting in the miniscule iconic Piccolo Bar, in one of the tiny side streets of Sydney＇s bustling and densest suburb. This paper encompasses an investigation of how the cultural inscriptions of the two specific sites interweave with the performance styles, materials, political and social positioning of the works. Previous performance studies examining site-specificity are utilised, including the author＇s analysis of particular festival performances as ＂place-making＂ （Hayes, 2012, 2013）. Smith＇s （2009） model of ＂signposts＂ is used to consider acting within site-specific productions in a new light, whilst both performances are more completely analysed through Schneider＇s （2011） concept of incomplete pasts forming ＂cycles of memory＂.展开更多
Recycling is an alternative for preserving historical heritage buildings. Through such process, buildings are occupied by new usages that assure they are not abandoned. However, conservation issues, like pathological ...Recycling is an alternative for preserving historical heritage buildings. Through such process, buildings are occupied by new usages that assure they are not abandoned. However, conservation issues, like pathological manifestations by filamentous fungi, are common even in buildings receiving new uses. Thus, it is extremely important to know the microclimate behavior of these buildings and analyze if there are usages that favor the appearance of filamentous fungi or not. This study aims to verify if new usages modify the microclimate in historical buildings and if such possible change favors the appearance of pathological manifestations by filamentous fimgi in some specific use. To achieve the results, three buildings that have gone through recycling processes were chosen in the city of Pelotas, in Southernmost Brazil. The city possesses a large number of buildings with historical value and its climate conditions are propitious for appearance of filamentous fungi. For 12 months, microclimate was monitored, the environments modus operandi was characterized and there was a survey on the pathological manifestations by filamentous fungi in the three buildings with two different uses： administration offices and exhibition rooms. Conclusion was that usages that allow natural ventilation and lighting favor conservation, which is what happens in the ones used as administration offices. Besides that, it was noticed that the construction system also influences, since buildings with a high cellar that is being used did not present filamentous fungi, which also shows the influence of ascending humidity on the appearance of such pathological manifestations.展开更多
文摘针对现有的基于历史信息预测的机会网络路由算法(history based prediction for routing in infrastructure-less opportunistic networks,HBPR)在归属位置单元表更新阶段存在的开销冗余和消息转发阶段存在中继节点选择不合理等问题,提出了1种基于社会关系的低时延机会网络路由算法(a low delay routing algorithm for opportunistic networks based on social relations,LDSR),利用节点社会关系和地理位置信息来选择路由,简化了控制信息;在整个网络区域内设定多个归属位置单元,并在选取中继节点时,以选择与目的节点所在归属位置单元社会关系密切的节点,以及以选择能够缩短携带消息节点与目的节点归属位置单元之间距离的节点为辅。仿真结果表明,与HBPR算法相比,LDSR算法的平均端到端时延缩短了20%。
基金The Definition of El Nio/La Nia Episodes,a National Standard ProjectSpecialized Project for Public Welfare Industries(GYHY201406018,GYHY200806009)+2 种基金Program 973(2012CB955901)National Science and Technology Support Program(2009BAC51B05)National Youth Foundation for Natural Science(41005038)
文摘Some recent studies presented two existing types of ENSO events, one is the Eastern-Pacific(EP) type and the other the Central-Pacific(CP) type. This study examined the monitoring ability of several current operational ENSO indices. The results indicated that a single index could not distinguish the EP and CP in the historical ENSO events during 1950-2009. The Nio 3 index may only be suitable for monitoring the EP-type ENSO, while the Nio 4 index works only for the CP-type ENSO. In order to capture the occurrence of ENSO events and distinguish the type, we considered a new monitoring index group using Nio 3 and Nio 4 indices. Further analysis confirmed that this index group can monitor different types of historical ENSO events with different spatial distribution of sea surface temperature. It has a good performance in determining the characteristics of the ENSO events, including peak intensity, onset,decay, and mature phase.
文摘There are over 100 historically black colleges and universities （HBCUs） in the United States. The majority of these HBCUs are located in the southeast section of the United States. HBCUs are a major supplier of certified public accountants （CPAs） to the profession. Therefore, the performance of candidates from HBCUs should be of interest to various constituents including educators, employers, parents, students, and other stakeholders. The purpose of this paper is to provide statistical performance on the 2011 CPA examination for large, middle, and small HBCUs based upon the number of testing events taken. Taking a testing event is not the same as passing a testing event. This was the dichotomy between quantity and quality of HBCUs＇ performances. For large HBCUs, Morehouse University, North Carolina Agricultural and Technical State University （NC A＆T）, and Tennessee State University （TSU） were cited. For middle HBCUs, Albany State University, Norfolk State University （NSU）, and North Carolina Central University （NCCU） were cited. For small HBCUs, Alcorn State University, Fisk University, and University of Maryland Eastern Shore （UMES） were cited. The dichotomy between quantity and quality is real.
文摘This paper aims to compare and contrast two site-specific performance productions, both designed to grapple with processes of cultural remembrance, whilst also operating as successful tourist attractions. The narratives encompassed by both productions revolve around shared Australian histories, for audiences attracted by place and what it is able to represent. Re-enactments of past events call into the present a consideration of what still remains, with both shows enabling new subjective interpretations of earlier times. The defining difference between the two, however, rests in the context of each performance, in the one case as a commodification of heritage and in the other case as the desire to produce an artistic yet popular theatrical product. Ballarat＇s, Sovereign Hill＇s light and sound show, Blood on the Southern Cross celebrates and commemorates, in mega-spectacle style, the Eureka Stockade, one of Australia＇s key historical events. Using a mechanised display of the original goldmining site of the Eureka rebellion, the performance is operated by computers with video-projection, multi-phonic sound, and moving model forms, with audiences moved around the massive site on transporters. The Piccolo Tales, a contrasting performance most notably in terms of size, unfolds the history of Kings Cross, through its setting in the miniscule iconic Piccolo Bar, in one of the tiny side streets of Sydney＇s bustling and densest suburb. This paper encompasses an investigation of how the cultural inscriptions of the two specific sites interweave with the performance styles, materials, political and social positioning of the works. Previous performance studies examining site-specificity are utilised, including the author＇s analysis of particular festival performances as ＂place-making＂ （Hayes, 2012, 2013）. Smith＇s （2009） model of ＂signposts＂ is used to consider acting within site-specific productions in a new light, whilst both performances are more completely analysed through Schneider＇s （2011） concept of incomplete pasts forming ＂cycles of memory＂.
文摘Recycling is an alternative for preserving historical heritage buildings. Through such process, buildings are occupied by new usages that assure they are not abandoned. However, conservation issues, like pathological manifestations by filamentous fungi, are common even in buildings receiving new uses. Thus, it is extremely important to know the microclimate behavior of these buildings and analyze if there are usages that favor the appearance of filamentous fungi or not. This study aims to verify if new usages modify the microclimate in historical buildings and if such possible change favors the appearance of pathological manifestations by filamentous fimgi in some specific use. To achieve the results, three buildings that have gone through recycling processes were chosen in the city of Pelotas, in Southernmost Brazil. The city possesses a large number of buildings with historical value and its climate conditions are propitious for appearance of filamentous fungi. For 12 months, microclimate was monitored, the environments modus operandi was characterized and there was a survey on the pathological manifestations by filamentous fungi in the three buildings with two different uses： administration offices and exhibition rooms. Conclusion was that usages that allow natural ventilation and lighting favor conservation, which is what happens in the ones used as administration offices. Besides that, it was noticed that the construction system also influences, since buildings with a high cellar that is being used did not present filamentous fungi, which also shows the influence of ascending humidity on the appearance of such pathological manifestations.
