3d sketches in a top down assembly

... messages in our handshaking example in Figure 1.2) or can contain data, such as an email message, a JPEG image, or an MP3 audio file To send a message from a source end system to a destination ... Xbox), Internet-ready televisions, digital picture frames that download and display digital pictures, washing machines, refrigerators, and even a toaster that downloads meteorological information and ... PARC) Pinak Jain (former NYU-Poly student) Jobin James (University of California at Riverside) Sugih Jamin (University of Michigan) Shivkumar Kalyanaraman (IBM Research, India) Jussi Kangasharju...

Ngày tải lên: 19/03/2014, 13:33

... concatenated message 3.  Concatenates the secret to front of digest 4.  Hashes the combination again 47 Example: OSPF ❒  Recall that OSPF is an intra-AS routing protocol ❒  Each router creates map ... over a concatenation of the OSPF packet and shared secret key MD5 hash then appended to OSPF packet; encapsulated in IP datagram 49 End-point authentication ❒  Want to be sure of the originator ... differentiate resulting plaintext from gibberish Statistical analysis ❒  Known-plaintext attack: trudy has some plaintext corresponding to some ciphertext ❍  eg, in monoalphabetic cipher, trudy determines...

Ngày tải lên: 28/03/2014, 20:20

... jose.pons@csic.es DF: dario.farina@bccn.uni-goettingen.de MI: m.iosa@hsantalucia.it MM: m.molinari@hsantalucia.it FT: f.tamburella@hsantalucia.it AR: ander.ramos@gmail.com AC: andrea.caria@uni-tuebingen.de ... dynamic tasks such as gait Miyai and colleagues [188] recorded cortical activation in healthy participants associated with bipedal walking on a treadmill They reported that walking was bilaterally ... of researchers are pursuing a top- down approach, consisting on defining the rehabilitation therapies based on the state of the brain after stroke This paper aims at providing an integrative view...

Ngày tải lên: 19/06/2014, 08:20

... physical ca gi lo r application transport network data link physical application transport network data link physical available: r r delay guarantees bandwidth guarantees Transport Layer 3-6 Chapter ... to app layer Ì more than one transport protocol available to apps r Internet: TCP and UDP application transport network data link physical application transport network data link physical Transport ... network data link physical network data link physical ca gi lo le nd -e nd network data link physical a tr network data link physical network data link physical rt po ns communication between app...

Ngày tải lên: 27/06/2014, 16:20

... Multimedia Networking 7- Adaptive Playout Delay, I Ì Goal: minimize playout delay, keeping late loss rate low Ì Approach: adaptive playout delay adjustment: r r r Estimate network delay, adjust playout ... Research: Ì Layered (scalable) video r adapt layers to available bandwidth 7: Multimedia Networking 7- Chapter outline Ì 7.1 Multimedia Networking Applications Ì 7.2 Streaming stored audio and video ... MM applications: 1) Streaming stored audio and video 2) Streaming live audio and video 3) Real-time interactive audio and video Jitter is the variability of packet delays within the same packet...

Ngày tải lên: 27/06/2014, 16:20

... management definitions: managing entity agent data managing data entity managed device agent data network management protocol managed device managed devices contain managed objects whose data ... data is gathered into a Management Information Base (MIB) agent data agent data managed device managed device Network 9-5 Network Management standards OSI CMIP Ì Common Management Information Protocol ... Internet-standard management framework r Structure of Management Information: SMI r Management Information Base: MIB r SNMP Protocol Operations and Transport Mappings r Security and Administration Ì ASN.1...

Ngày tải lên: 27/06/2014, 16:20

... of a rainbow, or a gradient of vegetation across a large space?” For at least 75 years, applied scientists such as game and fisheries managers have accepted that the most fruitful spatial areas ... obtained and are still being analyzed, Biosphere failed the principal stated mission According to Cohen and Tilman (1996) “Isolating small pieces of large biomes and juxtaposing them in [an] artificial ... on Population Dynamics: Approaches and Examples Lennart Hansson Part III Landscape Theory and Practice The Re-Membered Landscape Larry D Harris and James Sanderson Quantifying Constraints upon...

Ngày tải lên: 11/08/2014, 10:22

... population and consequently what appeared to be poorer habitat was actually occupied by the source population Saving the largest portion of the total habitat while eliminating the remaining apparently ... Lindeman’s theory asserted that nature was organized into ecological systems that were recognizable objects such as lakes that have an origin and development leading to a steady state or dynamic ... eventually select against individuals and all individuals influence all other components of the environment including landforms, landscapes, and even physical processes such as fire and solar insolation...

Ngày tải lên: 11/08/2014, 10:22

... decomposition that aids in soil formation In the humid tropics water causes chemical weathering and in the high latitudes water in the form of permafrost causes mechanical change, breaking down rock in situ ... to be a landscape process Human activities are increasingly landscape, as well as regional, biome, and continental processes Consistent with the definition of a landscape process, a landscape thus ... has stripped away the soil and is abrasively wearing away the exposed bedrock Wind is also a depositional process Great Sand Dunes National Monument in southern Colorado exists because wind carries...

Ngày tải lên: 11/08/2014, 10:22

... that more than total area matters Topographic diversity of the habitat was an absolutely critical factor, as was the timing of the drying of the plants The vagaries of local weather patterns and ... Serengeti grazers accelerated mineralization of N and Na, both important in animal nutrition Mammalian herbivores co-evolved with grasslands and their grazing accelerated nutrient cycling Overgrazing ... this impact that may, in fact, only be measurable in ecological time Considering mobile organisms in a landscape context enables a major step toward the conservation of biota in general Certainly...

Ngày tải lên: 11/08/2014, 10:22

... dynamics in a landscape f Habitat interdependence Individuals from one habitat may glean necessary or additional resources in a neighboring habitat whereby population growth rates are impacted Habitat ... with more heavily fluctuating populations in the north At population peaks in northern Scandinavia a wider spectrum of habitats is also utilized than in south Scandinavia (and in central Europe) ... muskrat, released as a fur animal in Russia and now invading Scandinavia (Danell 1977) and the starling, brought to New England by sentimental immigrants and now occurring over most of North America...

Ngày tải lên: 11/08/2014, 10:22

... Geoffroy's cats (Oncifelis geoffroyi) weigh 2.5 kg in Paraguay and kg in Patagonia The crested caracara (Caracara plancus) of Patagonia is half again as large as the Florida crested caracara The plumage ... j i Average habitat quality over the region for Sj can be calculated by assigning values to each habitat Let optimal habitat have a value of 8, suboptimal habitat a value of 6, marginal a value ... Aral Sea in Asia and the nearly total degradation of land- and seascape processes was achieved by humans in less than 30 years Cattle have overgrazed the western U.S from Mexico to Canada, at a cost...

Ngày tải lên: 11/08/2014, 10:22

... more humility Any ecological model that contains a singular point is assumed to break down as that particular value of the independent variable is approached It is patently assumed that some unspecified ... the system will appear linear in nature One can, in this case, seem to identify an initial cause and a final result The subsystem can appear wholly mechanical in its behavior For example the phycologist ... the organizational constraints operating on populations of animals that move across a landscape Thus, the hypothesis of increasing ascendency might pertain to landscape ecology as well Because...

Ngày tải lên: 11/08/2014, 10:22

... shopping areas, extended water and sewer services, and roadways that further encroach into farmland, ranches, and open space Coastal areas, the South, and the intermountain West face particularly ... The Natural Communities Conservation Planning program in Southern California is an experimental effort to preserve the remaining coastal sagescrub habitat in an area of high land values and growth ... local planners have increasingly used zoning regulations to separate arbitrarily residential and commercial uses of land As a result, the integration of shops and housing, narrow streets, and...

Ngày tải lên: 11/08/2014, 10:22