Syracuse University in June 2005 announced a team selected to design the Syracuse Center of Excellence in Environmental and Energy Systems (SyracuseCoE) headquarters. The design team for SyracuseCoE, a collaborative i...
详细信息
Syracuse University in June 2005 announced a team selected to design the Syracuse Center of Excellence in Environmental and Energy Systems (SyracuseCoE) headquarters. The design team for SyracuseCoE, a collaborative industry-university organization dedicated to studying IAQ, human performance, and renewable energy in the built environment, was tasked to create a 55,000-sq-ft, five-story tower and a double height lab wing to house their various labs, classrooms, and mechanical spaces. The design team was expected to develop a LEED Platinum building and beyond using the USGBC's LEED NC 2.2 rating system. The design team accomplished the heat rejection from the heat pumps by a closed loop geothermal bore field. Space dewpoint temperature was constantly being monitored by the Siemens BMS to avoid condensation, which is especially pertinent when operating in the natural ventilation mode.
This research aims to generate architectural design recommendations based on the visual reconstruction of the Lalitavistara reliefs from Borobudur, addressing the urgent need for building designs that retain the disti...
详细信息
River restoration has become a very important scientific and political issue in Korea, too. But the effectiveness of most restoration projects in heavily populated river corridors is doubtful. The purpose of this pape...
详细信息
River restoration has become a very important scientific and political issue in Korea, too. But the effectiveness of most restoration projects in heavily populated river corridors is doubtful. The purpose of this paper is to develop a wildlife habitat conservation plan for the Seom River, a second tributary of the Han River. The site has high biodiversity, and is home to several protected wildlife species of egrets, sandpipers, leopard cat, and river otter. The conservation plan is based on a comprehensive analysis of field data obtained by using GPS and heat sensor cameras. Spatial data of high resolution image and lidar data were employed for the analysis and evaluation of wildlife habitat, human disturbance such as levees, dams, weirs, other structures. The conservation plan can be summarized as follows. First, the degree of river naturalness and the wildlife habitat suitability of otter, the indicator species of the aquatic ecosystem, have been evaluated. Those river segments with the least human interference(disturbance) and high fish productivity have been classified as the river naturalness class II and prime otter habitats. Areas with poor vegetation cover due to the presence of gabion and other artificial structure have been classified as class III. Second, the conservation plan has been developed based on the IUCN guidelines. Much of the core habitat has been designated as protected areas (PA), and other parts of the corridor have been designated as buffers and transition areas. Third, the management plan requires the establishment of wildlife passages and strict control of human disturbance by using information posts. The buffers are characterized by the establishment of riparian forest and grassland that can minimize human interference around the core PA. Finally, guided tour, self-guided trail, walking, and other outdoor activities based on the visitor center are allowed in the transition area. The wildlife habitat conservation plan would be essential t
Latticed shells made of H-shaped steel have been constructed all over the world. This study investigates elastic buckling of spherical latticed shells made of H-shaped steel. Out-of-plane shell-like buckling and in-pl...
详细信息
Latticed shells made of H-shaped steel have been constructed all over the world. This study investigates elastic buckling of spherical latticed shells made of H-shaped steel. Out-of-plane shell-like buckling and in-plane member buckling dominantly occur in the elastic buckling of rigidly jointed latticed shells. An H-shaped section has strong and weak axes. Since bending stiffness on the strong axis is several times of that on the weak axis, in-plane member buckling is more likely to occur than the buckling of the shells made of pipes. In the present study the latticed shells for study were on the square plan of 20m × 20m. The shells were relatively flat where the rise-span ratios of the two central arcs were between 0.075 and 0.125. In the linear-buckling (eigenvalue) analysis, in-plane member buckling appears in the 1st buckling mode in all the FE models. The depth, area and second moment of inertia on the strong axis were uniformly set to 20cm, 25cm2 and 2000cm4, respectively. On the other hand, the second moment of inertia on the weak axis was parametrically changed so that the higher order linear buckling load where shell-like buckling firstly appeared was 1.5, 2.0 and 2.5 times of the 1st linear member buckling load. In addition, two boundary conditions, pin and roller were assumed since roller is often used in actually constructed shells. The higher order linear buckling loads agreed well with the classical shell-like buckling loads calculated using the continuum analogy. To estimate member buckling load itself, the buckling length is required. The buckling length calculated using the linear buckling analysis, is 0.7 and 0.5 times of the member length for the roller and pin supported shells, respectively. In the pin-supported shells, uniform compression is realized but in the roller-supported shells, compression and tension mix especially on the peripheral where the member buckling occurs. The tensioned members connected to the compressed member interfere the
Diffuseness, an important room acoustics parameter, is not easily quantified. Most current methods that attempt to define a single number to describe a room's level of diffuseness require highly specialized equipm...
详细信息
The present paper demonstrates and discusses elastic bucking characteristics of single layer latticed shells composed of hexagonal grids. A conventional method to calculate linear buckling loads, based on continuum an...
详细信息
The present paper demonstrates and discusses elastic bucking characteristics of single layer latticed shells composed of hexagonal grids. A conventional method to calculate linear buckling loads, based on continuum analogy is found to be also effective like other grid patterns. The bucking mode yields long overall buckling waves and is found to be non-extensional. The range of knockdown factors, the ratios of an elastic buckling load where the analysis considers geometric nonlinear effect to the linear buckling, is also investigated by nonlinear FE analysis. The lowest value is reduced to slightly above 0.5 even without geometric imperfection. The knockdown factor and its reduction due to geometric imperfection are mainly affected by the geometry and slenderness. After all, the range of knockdown factors is found to be above 0.5, based on the elastic nonlinear FE analyses in which the maximum imperfection amplitude is set to 1/500 of the span. The knockdown factors are also compared with the calculations by the reduced stiffness buckling theory.
Publications in refereed acoustics journals are of significant relevance for scientists and engineers in acoustics-related fields. The Journal of the Acoustical Society of America (JASA) encourages authors to submit p...
详细信息
This study analyzed the actual condition of the support projects for vacant house utilization in Tokyo’s 23 wards. As a result of interview researches in five wards set up this support projects, the subsidies per yea...
详细信息
This research shows the actual condition and issues of curators specializing in architecture & handling materials related to architecture and urban space in museum through analysis of a list covering nationwide mu...
详细信息
Spherical microphone arrays can measure a soundfield's spherical harmonic components, subject to certain bandwidth constraints depending on the array radius, and the number and placement of the array's sensors...
详细信息
ISBN:
(纸本)9781629935270
Spherical microphone arrays can measure a soundfield's spherical harmonic components, subject to certain bandwidth constraints depending on the array radius, and the number and placement of the array's sensors. Ambisonics is designed to reconstruct the spherical harmonic components of a soundfield via a loudspeaker array, and also faces certain limitations on its accuracy. This paper looks at how to reconcile these sometimes conflicting limitations to produce the optimum solution for decoding. In addition, binaural modeling is used as a method of evaluating the proposed decoding method and the accuracy with which it can reproduce a measured soundfield.
暂无评论