design modeling engineering economics and design use

... 11.5 Notes 158 152 PART IV DESIGN MODELING, ENGINEERING ECONOMICS, AND DESIGN USE CHAPTER 12 MATHEMATICAL MODELING IN DESIGN Math and physics are very much part of the design process! 161 12.1 ... Communication and design 10 Learning and doing engineering design 12 1.3.1 Engineering design problems are challenging 12 1.3.2 Learning design by doing 13 Managing engineering design projects ... iv ENGINEERING DESIGN What does it mean to design something? Is engineering design different from other kinds of design? Where and when engineers design? A basic vocabulary for engineering design...

Ngày tải lên: 10/03/2016, 13:35

... mechanics into design practice This should not only bring about more uniform safety margins, thus improving safety and economy o f design, but also pave the way for safer and more efficient use of high-performance ... high-performance concretes and permit design extrapolations beyond the range o f previous experiments and design KEYWORDS : Brittleness, concrete, concrete structures, crack spacing and width ,cracking, ... (such as those o f Hillerborg's fictitious crack model, crack band model, nonlocal strain-softening models, etc.) are described and random particle simulation o f aggregate microstructure is discussed...

Ngày tải lên: 24/10/2014, 21:58

... be useful to students and researchers It is hoped that this book will provide a reference to students, researchers and practitioners in both introducing the topic of data streams and understanding ... case because of the huge volume of the underlying data Chapter 11 explores the problem of indexing and querying data streams Dimensionality Reduction and Forecasting in Data Streams Because of ... any user specified time horizon (t, - h, t,) can be approximated We note that some examples of time frames used for the clustering process are the natural time frame (Figure 2.2(a) and (b)), and...

Ngày tải lên: 08/11/2013, 02:15

... the data mining output to the user The user could be a mobile user or a stationary one getting the results from mobile nodes This is often a challenge because of the bandwidth limits in transferring ... the cluster projection An iterative approach is used in which the dimensions are used to update the clusters and vice-versa The structure in F C S uses a decay-based mechanism in order to adjust ... decision trees are useful for one-pass mining of data streams [14, 191, these cannot be easily used in the context of an on-demand classijier in an evolving environment This is because such a classifier...

Ngày tải lên: 08/11/2013, 02:15

... be used in online fashion, and therefore the approach is referred to as an on-demand classijication method This is because the set of test instances could arrive in the form of a data stream and ... STREAMS: MODELS AND ALGORITHMS On Demand Classification Aggarwal et al have adopted the idea of micro-clusters introduced in CluStream [2] in On-Demand classification in [3] The on-demand classification ... Demand Classification of Data Streams, Proc 2004 Int Con$ on Knowledge Discovery and Data Mining (KDD '04), Seattle, WA [4] Babcock B., Babu S., Datar M., Motwani R., and Widom J (2002) Models and...

Ngày tải lên: 08/11/2013, 02:15

... technique used to understand, visualize and determine trends in the evolution of fast data streams We show how to use velocity density estimation in order to create both temporal velocity proJiles and ... and whose counts are less than An item whose counts exceeds is called Hierarchy Heavy Hitter (HHH), and we want to find all HHHs in a data stream They have presented both deterministic and randomized ... time was reversed and the data stream arrived in reverse order, starting at t ht and ending at t Examples of the forward and reverse density profiles are illustrated in Figures 5.1 and 5.2 respectively...

Ngày tải lên: 15/12/2013, 13:15

... aggregations (1) on two dimensions, user and location, by rolling up from individual-user to user-group and from street-address to street-block, respectively, and (2) on time dimension by rolling ... that the o-layer is user-category, region, and quarter, while the m-layer is user, city-block, and minute Storing a cube at only two critical layers leaves much room on what and how to compute ... response, and both space and time are critical in processing, we examine both time and space consumption In our study, besides presenting the total time and memory taken to compute and store...

Ngày tải lên: 15/12/2013, 13:15

... C and change the sampling ratesfor the other two load shedders to be pi = PIP3 = 0.8 and pb = p2/p3 = 0.625 This change does not afect the efective sampling rates, because pip; = plp2 = 0.5 and ... 146 DATA STREAMS: MODELS AND ALGORITHMS The load shedding strategy used in Loadstar makes use of these two ideas to decide which data elements should be examined Loadstar uses a quality of decision ... elements at a given time instant and window size refers to N 0.1 Motivation and Road Map Our aim is to develop algorithms for maintaining statistics and models that use space sublinear in the window...

Ngày tải lên: 15/12/2013, 13:15

... have been used for a variety of problems in data stream mining such as classification, and query estimation [28,58] In general, the method of random sampling is quite powerful, and can be used for ... ability to use the exact distribution of the sketch provides much stronger results than just the use of mean and variance of the sketch components We note that the use of only mean and variance ... design of histograms for the dynamic case Wavelets: Wavelets have traditionally been used in a variety of image and query processing applications In this chapter, we will discuss the issues and...

Ngày tải lên: 15/12/2013, 13:15

... is slower and less reliable The resulting distribution has a higher variance and looser bounds, and lags slightly behind that of S1 To correlate measurements from S1 and S2by time, we use an equijoin ... most effective use of the limited memory resource? How we decide what part of the join state to keep and what to discard? Can we mitigate the problem by identifying and purging "useless" parts ... the least preferable among the three However, because the ECBs of x and z cross over, the dom-test is silent on the choice between x and z To handle "incomparable" ECBs such as these, Xie et al...

Ngày tải lên: 15/12/2013, 13:15

... constraints can be used to reduce stream join state (Section 3.1), they have also been used to help expire data from data warehouses without affecting the maintainability of warehouse views [21] ... D., Sheard, T., and Fegaras, L (2003) Exploiting punctuation semantics in continuous data streams IEEE Transactions on Knowledge and Data Engineering, 15(3):555-5 68 [41] Urhan, T and Franklin, ... 359-370, Baltimore, Maryland, USA f [46] Zhuge, Y, Garcia-Molina, H., and Wiener, J L (1998) Consistency algorithms for multi-source warehouse view maintenance Distributed and Parallel Databases,...

Ngày tải lên: 15/12/2013, 13:15

... dimensionality reduction with random projections, and then periodically computing the SVD However, the method incurs high overhead because of the SVD re-computation and it can not easily handle missing values ... most streams exhibit a slow dip and then ascent (e.g., see 2, and and, to a lesser extent, 3, and 8) However, a number of them start fluctuating more quickly and violently when the second hidden ... a succinct summary to the user, they can help to fast forecasting and detect outliers, and they facilitate interpolations and handling of missing values, as we discuss later The rest of the chapter...

Ngày tải lên: 15/12/2013, 13:15

... correlations and hidden variables discovered have multiple uses They provide a succinct summary to the user, they can help to fast forecasting and detect outliers, and they facilitate interpolations and ... MODELS AND ALGORITHMS that can be efficiently maintained in a distributed and incremental setting should be designed and then specific solutions that use these statistics should be devised Such a design ... [4] V Barnett and T Lewis Outliers in Statistical Data John Wiley and Sons, 1994 [5] J Beringer and E Hullermeier Online clustering of parallel data streams Data and Knowledge Engineering, 2005...

Ngày tải lên: 15/12/2013, 13:15

... best sensor and hands off the state information to it Thus, only a single node is used to track the target at any time and the routing decision is made based on information gain and resource ... the development and use of in-network storage and analysis techniques; here we have focused on the analysis part However, future systems will operate with larger more expensive and capable sensors ... database, which can then be used for answering user queries To improve on this scheme, [6],[34] and [53] suggested the concept of viewing sensor system as a distributed database and proposed incorporating...

Ngày tải lên: 15/12/2013, 13:15

... Quantiles and Equi-depth Histograms, 198 Query Estimation, 26 Query Processing in Sensor Networks, 337 Query Processing with Wavelets, 181 Querying Data Streams, 238 Random Projection and Sketches, ... Shedding, 138 Privacy Preserving Stream Mining, 26 Probabilistic Modeling of Sensor Networks, 256 Projected Stream clustering, 22 Pseudo-random number generation for sketches, 186 Punctuations for ... Streams, 295 Clustering streams, 10 CluStream, 10 Community Stream Evolution, 96 Compression and Modeling of Sensor Data, 342 Concept Drift, 45 Concise Sampling, 176 Content Distribution Networks,...

Ngày tải lên: 15/12/2013, 13:15

... C n+1 (D) and (Pf,h , If,h ) and (Pg,h , Ig,h ) be n-th order Taylor models for f and g around xh on xh + [h, h]v D Let the remainder bounds If,h and Ig,h satisfy If,h = O(hn+1 ) and Ig,h = ... models (Pf +g , If +g,h ) and (Pf ãg , If ãg,h ) for the sum and products of f and g obtained via addition and multiplication of Taylor models satisfy If +g,h = O(hn+1 ), and If ãg,h = O(hn+1 ) ... arithmetic operations and up to two variables In our opinion, this work has great appeal because it represents the rst use of interval Taylor methods for theorem proving, and because of the signicance...

Ngày tải lên: 12/01/2014, 21:47

... Tgv Ug , and the pressure at the velum is Pv = Zv Uv Once Pv and Uv are known, the volume velocity and/ or pressure at the nostrils and lips can be computed by inverting the matrices Kvn and Kvt ... observed phenomenon that the fricatives th and f (and the corresponding voiced dh and v) are weak compared to the fricatives s and sh The teeth (upper for s and lower for sh) provide the obstacle ... (44.1) and (44.3), one can also derive a single equation in u It is useful to write Eqs (44.1), (44.3), and (44.4) in the frequency domain by taking Laplace transforms Defining P (x, s) and U (x,...

Ngày tải lên: 22/01/2014, 12:20

... Zapol and K J Falke 25 Gas Mixing and Distribution in the Lung, edited by L A Engel and M Paiva 26 High-Frequency Ventilation in Intensive Care and During Surgery, edited by G Carlon and W S Howland ... Roussos and P T Macklem 30 The Pleura in Health and Disease, edited by J Chrétien, J Bignon, and A Hirsch 31 Drug Therapy for Asthma: Research and Clinical Practice, edited by J W Jenne and S Murphy ... Exercise Medicine, edited by S C Wood and R C Roach 77 Endotoxin and the Lungs, edited by K L Brigham 78 The Mesothelial Cell and Mesothelioma, edited by M.-C Jaurand and J Bignon 79 Regulation of Breathing:...

Ngày tải lên: 14/02/2014, 17:20

Ngày tải lên: 18/02/2014, 11:20

Ngày tải lên: 19/02/2014, 03:20