the design of urban space

... (17) R+ represents the ratio of the thermal resistance of the branched structure of single-walled carbon nanotubes, Rt, to that of the equivalent Rs, under the constraint of total volume, and ... cone showing one of the heat transfer paths from the interior heat source (red) to the edge (blue) of the electronic device, and (b) is the cross section optimal designs of the embedded nanocone ... micro-spaces, the space are limited So, to find the proper structure is necessary Nevertheless, no work appears to have been done on the optimum design of the heat conduction structures from the...

Ngày tải lên: 21/06/2014, 03:20

... below the active soil zone Expansive soils are most prevalent on the Atlantic and Gulf coastal plain and in some areas of the central and western United States Photograph of the construction of the ... Increase of stress under the center of a flexibly loaded rectangular area Therefore, the average pressure increase in the clay layer is, ∆qavg = (92.3 + 4(78.8) + 69.8) = 79 psf The pressure po at the ... 11,000 kN Step Find the soil pressures at the mat invert Find the centroid of the column loads (location of the resultant R) with respect to a new x’y’ coordinate system located at the lower left...

Ngày tải lên: 16/10/2012, 10:43

... consisted of spacer removal, and insertion of a cement-coated modular prosthesis with a spacer head The cement mantle of the prosthesis is also antibiotic-loaded according to the sensitivity profile of ... Asymptomatic spacer fracture localised in the middle part of the spacer stem with no dislocation of the spacer Figure 4: Spacer migration into the pelvis due to acetabular defects Figure 5: Symptomatic spacer ... if • the patient is not compliant, • partial weight bearing of the operated extremity cannot be tolerated, • the spacer is insufficiently fixated onto the proximal femur, • the size of the spacer...

Ngày tải lên: 26/10/2012, 09:53

... table Therefore, the rigidity of the thrust bearings is especially important To increase the rigidity, the thrust bearings are preloaded to 40 kN by Belleville spring washers at the upper end of the ... operating conditions as the expansion of the rotating parts due to the effects of heat and centrifugal force not cause jamming of the outer rings in the housing Lubrication, sealing The bearings are ... until the roller-and-cage assembly runs under a light preload (5 µm) Surface finish and dimensional accuracy of the workpiece mainly depend on the axial rigidity of the spindle headstock and of the...

Ngày tải lên: 25/12/2013, 05:17

... is made up of the weight of the rotor and the two variable top and bottom fan impellers as well as the thrust of these fan impellers They are supported by the upper thrust bearing The radial ... kW; range of speed 11 2,240 min–1 Machining of the housing bore is simplified in that the nominal outside diameters of the radial and thrust bearings are the same The O.D tolerance of the angular ... Bearing selection The selection of the bearings is primarily based on the main thrust, which is directed downwards It is made up of the weight of the rotor and and pump impeller (4 kN), the pump thrust...

Ngày tải lên: 25/12/2013, 05:17

... context of the product The concepts of feature flexibility and feature importance can be used to reduce the redesign solution search space The problem of ranking of the redesign solutions (on the ... so that the designer can easily interact with the system Ranking of Redesign Alternatives Another area requiring research attention in the context of generation of redesign solutions (design advisor) ... Evaluation Typically, the designer designs a product with minimal knowledge about the capabilities and limitations of the manufacturing technology The designer then tries to find out if the design can be...

Ngày tải lên: 19/01/2014, 18:20

... know the prices of chemicals in the various markets and the operating costs of processes, the problem is then to decide the operating level of each process and amount of each chemical in the list ... are the extreme rays of C, then the projection of P onto the space of x is given by: projx(P) ϭ {x : v hAx Յ v h b, h ϭ 1,…,H; x ʦ X} This expression requires finding the extreme rays of the polyhedral ... limited The case of shut down of an existing plant results when the variable Wit takes a value of zero after a given time period t The economics of shut down can be modeled by the inclusion of the...

Ngày tải lên: 19/01/2014, 18:20

... is made up of the weight of the rotor and the two variable top and bottom fan impellers as well as the thrust of these fan impellers They are supported by the upper thrust bearing The radial ... kW; range of speed 11 2,240 min–1 Machining of the housing bore is simplified in that the nominal outside diameters of the radial and thrust bearings are the same The O.D tolerance of the angular ... Bearing selection The selection of the bearings is primarily based on the main thrust, which is directed downwards It is made up of the weight of the rotor and and pump impeller (4 kN), the pump thrust...

Ngày tải lên: 23/01/2014, 04:20

... roughening of the surfaces (increased running noise) Work end Bearing dimensioning The size of the bearings is dictated by the shaft diameter, which in turn is based on the anticipated vibrations The ... in the rolling gap In order to still achieve the thickness tolerances of the sheets in the micrometer range, the deflection is compensated for by inclining of rolls and and by counterbending of ... the bearing housings, circumferential grooves in the bearing outer rings and in the spacers as well as radial grooves in the outer faces feed the oil directly into the bearings Lip seals in the...

Ngày tải lên: 23/01/2014, 04:20

... more frequently than “theory of evolution” in the scientific literature Why does the phrase “theory of evolution” appear nearly 16 times as frequently as “theory of ecology” in the scientific literature ... eschew the phrase the theory of evolution.” Granted, evolution is a theoretically more cohesive field than ecology: Genes, the fundamental units of evolution, are uniquely defined in terms of their ... in the mid19th century, as the study of the relationship between organisms and environment, and a century later by Andrewartha and Birch (1954) as the study of the distribution and abundance of...

Ngày tải lên: 25/01/2014, 08:20

... context of the product The concepts of feature flexibility and feature importance can be used to reduce the redesign solution search space The problem of ranking of the redesign solutions (on the ... so that the designer can easily interact with the system Ranking of Redesign Alternatives Another area requiring research attention in the context of generation of redesign solutions (design advisor) ... Evaluation Typically, the designer designs a product with minimal knowledge about the capabilities and limitations of the manufacturing technology The designer then tries to find out if the design can be...

Ngày tải lên: 25/01/2014, 13:20

... know the prices of chemicals in the various markets and the operating costs of processes, the problem is then to decide the operating level of each process and amount of each chemical in the list ... are the extreme rays of C, then the projection of P onto the space of x is given by: projx(P) ϭ {x : v hAx Յ v h b, h ϭ 1,…,H; x ʦ X} This expression requires finding the extreme rays of the polyhedral ... limited The case of shut down of an existing plant results when the variable Wit takes a value of zero after a given time period t The economics of shut down can be modeled by the inclusion of the...

Ngày tải lên: 25/01/2014, 13:20

... syllabus 2.6.3 .The findings 2.6.3.1 The findings of the questionnaires This part of the study presents the results of the questionnaires collected from the teachers of the English section, the subject ... discarded in the process of determining the content of the course The above discussion on approaches to course design leads the researcher of this study to the decision of choosing the learning-centered ... part of the study, the Development, there are three chapters Chapter presents the review of relevant theories for designing an ESP reading syllabus, namely definition of syllabus, the role of the...

Ngày tải lên: 29/01/2014, 14:39

... between the tooth Thus wstR = rstθ st (15.2-31) The width of slot between the base of the tips is taken as the average of the distance of the chord length of the inner corners of the tooth tips at the ... that the reciprocal of wsiR is set to the average of the reciprocals of the chord lengths between inner corners of slot at the top of the slot (under the tooth tip) and the outer corners of the ... leo is the end winding offset, which is the amount of overhang of the end winding between the end of the stator stack and the end winding bundle The end winding offset is a function of the manufacturing...

Ngày tải lên: 16/02/2014, 18:55

... The proliferation of new retail space brings about a re- and de-territorialisation of urban public space that also includes the transformation of materialities and urban design, and even of the ... impacts on the everyday life and culture of the pedestrian precinct The fourth chapter, Shopping and the Rhythms of Urban Life, deals with the impact of retail rhythms on urban life and the urban ... follow the actants that, together, constitute the stabilised and framed network of the bus stop These actant could for example include the signpost, the timetable, the buses, the bus shelter, the...

Ngày tải lên: 18/02/2014, 18:20

... out of the tumult of data which includes: • • • • • • • • the physical characteristics of the site; the technical aspects concerned with the strength of materials and the theory of structures; the ... for the shape and size of the cut-out The final judgement on a design must rest with the combined response of public and profession The choice of a solution that is expressive of the flow of forces ... reduce the thrust of the roof, it is made of lightweight concrete, of which the density reduces towards the crown Also, the underside of the roof is relieved by caissons, which fulfil the three...

Ngày tải lên: 18/02/2014, 18:20

Ngày tải lên: 19/02/2014, 14:20

... evidence of the existence of this association in urban settings Within this framework, the overview guiding the design of this study is establishing categories of urban places from the perspective of ... proposed (1994, 1997) two types of variable in the context of urban design: Attributes of formal aesthetics and attributes of symbolic aesthetics Among the former, the authors highlight ‘‘openness’’ ... how often they visited or walked by their first choice Once they had completed the ‘‘attractive’’ places section, participants were asked to place themselves on the other side of the aesthetic...

Ngày tải lên: 19/02/2014, 17:20

... the roles of these messages are described in the next sections The following variables are used in the pseudocode: topics is the set of topics that the local node is aware of, msg.source is the ... for topic ½½¼¼ The subscription of node ¼½½½ causes the other two nodes along the route to become forwarders for the topic, and causes them to add the preceding node in the route to their children ... locate the rendez-vous point of a topic If the publisher is aware of the rendez-vous point’s IP address then the PUBLISH message can be sent straight to the node If the publisher does not know the...

Ngày tải lên: 19/02/2014, 18:20

... 1982) The elements of the vocabulary of a control language are names of PSs, and the well-formed strings of the language define just those sequences of PS applications which are allowed The user ... It follows that the generator must provide compilations of these defintions in the language of the kernel machine The implementation of the control generator is an adaptation of B a d e n ' s ... know of no language as suitable for the description of data as FP for the description of control The reason is that at this moment, we are insufficiently confident of the basic character of data...

Ngày tải lên: 08/03/2014, 18:20