bad design—what not to do
database design fora mere mortals 2nd ed
Ngày tải lên :
27/10/2014, 00:34
... the Database Documentation Done at Last! 487 Case Study—Wrap Up 487 Summary 488 xxi 481 482 483 486 PART III: OTHER DATABASE-DESIGN ISSUES Chapter 14: Bad Design—What Not to Do 491 Topics Covered ... with easy -to- understand examples That’s not to say that it doesn’t contain the hardcore information you need to databases right—it does, of course But it’s geared toward real developers, not theoreticians ... A Hands-On Guide to Relational Database Design Michael J Hernandez Boston • San Francisco • New York • Toronto • Montreal London • Munich • Paris • Madrid Capetown • Sydney • Tokyo • Singapore...
690
660
0
The Design of the Borealis Stream Processing Engine pdf
Ngày tải lên :
27/06/2014, 23:20
... no history is stored that can never be used While query diagrams can be normalized in this manner, it may still be necessary to reduce the storage demands of diagram histories This can be done ... unnecessary Another way to limit revision proliferation is to limit which revisions are processed If a tuple is considered to be “unimportant”, then it would make sense to drop it This is similar to semantic ... a CP since t.3 The effect of an operator processing these revisions is to roll back its state to time t The operator in turn issues revision messages to undo/revise the output since time t Therefore,...
13
358
0
Evaluation of the Innovated Disinfection Process with High Dissolved CO2
Ngày tải lên :
05/09/2013, 10:15
... shown in Fig To improve the contact efficiency between CO2 and water, the nozzle with a small radius was set to provide influent at a high rate When the influent stroked the bottom of the device, ... after treatment suitably diluted was introduced into each Petri dish first and then 10 mL of media was added and mixed, after they turned into solid, another 10mL of media was added For FC count, ... that these two samples had more initial FC numbers, and 10 was not long enough for all of the bacteria to uptake enough CO2, which lead to the explosion of all cells when discharged outside of the...
8
421
0
Who’s Afraid of ID, A Survey of the Intelligent Design Movement
Ngày tải lên :
01/11/2013, 08:20
... science as inherently committed to methodological naturalism; they argue that this approach is therefore not up for democratic debate One does not have to accept methodological naturalism, but if ... sleuthing uncovered it) a hidden agenda to undermine scientific materialism This idea does not hold water, because there is nothing in the Wedge Document that has not been publicized elsewhere for quite ... creationists As a scientific proposal, ID does not start from the idea of an inerrant biblical text, and it does not try to find evidence that backs up specific historical claims derived from a literal...
21
589
0
Tài liệu Báo cáo khóa học: Quantitative analysis, using MALDI-TOF mass spectrometry, of the N-terminal hydrolysis and cyclization reactions of the activation 2 process of onconase pdf
Ngày tải lên :
19/02/2014, 12:20
... [13] Notomista and co-workers [12] showed that M23L substitution increased the catalytic activity of this variant relative to the native enzyme, but did not modify its potential as a cytotoxin ... Homology to pancreatic ribonucleases J Biol Chem 266, 245–251 Notomista, E., Catanzano, F., Graziano, G., Di Gaetano, S., Barone, G & Di Donato, A (2001) Contribution of chain termini to the conformational ... protein, is fairly open to the bulk solvent and is accessible via a solvent channel [30] Thus, the accessibility of the peptidase active site does not seem to be a limiting factor for catalysis under...
9
704
0
The Mechanical Design Process doc
Ngày tải lên :
05/03/2014, 12:20
... new products not working as they should, taking too long to bring to market, or costing too much are the result of a poor design process The goal of this book is to give you the tools to develop ... second nature to him One day while we were skating together, I asked him to teach me how to skate backward He said it was easy, told me to watch, and skated off backward But when I tried to what he ... immediately fell down As he helped me up, I asked him to tell me exactly what to do, not just show me After a moment’s thought, he concluded that he couldn’t actually describe the feat to me I still...
448
891
0
RELEASE NOTES FOR VERSION 1.0 OF THE DATABASE pdf
Ngày tải lên :
07/03/2014, 14:20
... observations In version 1.0, a history entry has been added to the primary and FLUX HDU of these FITS files to note that they possibly contain bad pixels which have not been properly identified We ... conservative tolerances were used to identify the bad pixels in the longer exposure The pixels identified as having been adversely affected by overexposure have been assigned a value of NaN (not- a-number ... the DQ array a best guess as to the status of a pixel and place more trust in flagging of bad or overexposed pixels which has been done in postproduction We hope to improve on this situation...
6
425
0
ON THE VALUATION OF GOODS AND SELECTION OF THE BEST DESIGN ALTERNATIVE docx
Ngày tải lên :
16/03/2014, 11:20
... bottom-line of each possible scenario should be made With two competitors, competitor A adds the feature and competitor B either does or does not Or A does not add the feature and B either does ... contributed to our ®ndings here but we not think it was necessarily dominant The respondents were not told that they had to give up the tickets for a WTA price They freely chose to sell at a ... customers who wanted to purchase the product should have been able to so if they had the resources This may not always be the case and it is important to assure that customers are not being turned...
13
499
0
Báo cáo khoa học: Mechanism of the ring contraction process in vitamin B12 biosynthesis by the anaerobe Propionibacterium shermanii under aerobic conditions docx
Ngày tải lên :
23/03/2014, 09:20
... [1-13C]acetate (99 atom % 13C), which was purchased from Cambridge Isotope Laboratories (Andover, MA, USA) [1-13C,1,1,4-18O3]ALA was synthesized by heating [1-13C]ALA with [18O]water (95–98 atom % 18O; ... synthesized according to our method [11], via the hydrolysis of ethyl 3-ethoxycarbonyl-5-phthalimido[1-13C]levulinate produced from the coupling of ethyl 4-phthalimidoacetoacetate and ethyl bromo[1-13C]acetate ... singlet signals assigned to 13C-amide carbons, and 13CO and 13C18O represent 13CO-amide and 13C18O-amide groups, respectively e Value indicates upfield shift owing to 18O a-isotope effect in hertz...
7
443
0
Assessment of the Content, Design, and Dissemination of the Real Warriors Campaign pptx
Ngày tải lên :
30/03/2014, 05:20
... website intends to have users return regularly or to serve as a first stop to funnel new users to other resources If the website is intended to have regular users, the RWC may want to update the ... no [Expert panel member] They just put together a hodgepodge of stuff It’s too broad, too watered down, and too murky [Expert panel member] They tried to everything, instead of focusing on the ... related to help-seeking Another limitation of our evaluation is that we were not able to collect data from target audiences due to time, budgetary, and logistical constraints Finally, we did not...
114
522
0
Báo cáo hóa học: " Biomechanical energy harvesting from human motion: theory, state of the art, design guidelines, and future directions" docx
Ngày tải lên :
19/06/2014, 08:20
... released into the atmosphere as heat It therefore seems logical to attempt to harvest this thermal energy and convert it into electrical energy Based on Carnot’s equation [9], it is possible to calculate ... should be able to withstand torques of similar magnitude to maximum joint torque A torque of higher magnitude on the device would require stronger transmission and would therefore lead to an increase ... attaching a toothed rack to the load plate, which (when moving up and down during walking) meshes with a pinion gear mounted on a geared dc motor, functioning as a generator The motor is rigidly...
13
583
0
báo cáo hóa học:" Repositioning and stabilization of the radial styloid process in comminuted fractures of the distal radius using a single approach: the radio-volar double plating technique" pot
Ngày tải lên :
20/06/2014, 04:20
... of the abductor longus and extensor brevis tendons was sectioned, but care was taken to avoid direct contact between these tendons and the plate on the radial side Satisfactory anatomic repositioning ... brachioradialis tendon The radial buttress plate reduces displacement and neutralizes brachioradialis traction Nevertheless, this can be insufficient to reduce the styloid process to an anatomic position ... (60/0/70°)) Implant removal was not necessary Discussion The presented double plating technique, with the radial plate used as a buttress plate, is a very useful tool to reduce a displaced radial...
6
503
0
Báo cáo sinh học: " Research Article Development of the Database for Environmental Sound Research and Application " pot
Ngày tải lên :
21/06/2014, 16:20
... seem to be moving towards a pay -to- download model The database under construction will attempt to alleviate these problems The structure for the basic entries is shown below It is similar to a ... “hissing” to provide a more exact description There are several potential ways to describe the source, from physical objects to perceptual and semantic categories Although the present definition does not ... random ones, if multiple tokens are requested) and this will be noted in the sound’s search history so that usage statistics can be calculated and to prevent the same sound tokens from always being...
12
352
0
Báo cáo hóa học: "Molecular Dynamics Simulations of the Roller Nanoimprint Process: Adhesion and Other Mechanical Characteristics" pot
Ngày tải lên :
21/06/2014, 20:20
... disturbance occurs at surface atoms close to the tooth that cut into the Au substrate at a specific angle In the region of Au atoms away from the tooth, a special atomic structure of slip planes ... order to clearly display dislocation structures and atoms with high displacement, the slip vector calculation was used to present atomic colors, as shown in Fig The slip vector shows another ... onto the Au substrate The imprint force was not only due to the lateral friction from the side wall and neighboring Au atoms, but also due to the reactive normal force from the bottom Au atoms...
8
278
0
Results of the UNEP Foresight Process on Emerging Environmental Issues docx
Ngày tải lên :
28/06/2014, 19:20
... (UNEP), Nairobi, Kenya, 56pp Cover photograph credits (top to bottom): bg_knight; UN Photo/R Kollar; Protasov A&N; IIja Masík; WDG Photo This report can be downloaded at http://www.unep.org/publications/ebooks/ForesightReport/ ... important to point out that ‘emerging issues’ is a subjective concept What qualifies as ‘emerging’ to one community may be yesterday’s news to another Here emerging is meant to apply to those ... management to effective early monitoring and timely precautionary action Along these lines, early monitoring systems could be customised to detect different slowonset environmental changes Lenton and...
60
359
0
Modeling and optimization of the forward osmosis process parameters selection, flux prediction and process applications
Ngày tải lên :
10/09/2015, 15:48
... PLATES Plate 3.1 A photo of the laboratory-scale FO system used in the laboratory …74 Plate 3.2 A close-up photo of the FO test cell…………………………… … 75 Plate 3.3 A photo of the laboratory-scale nanofiltration ... development is neither well understood nor appreciated Much more needs to be done by the water sector to educate the world at large and decision-makers in particular.” In order to achieve the above mentioned ... Forward Osmosis – Membrane Bioreactor for Domestic Wastewater Reclamation to Produce High Quality Product Water 167 4.9.1 Computation fluid dynamics study to optimize FO-MBR membrane module...
237
422
0
USING THE ANALYTIC HIERARCHY PROCESS APPROACH FOR ASSESSMENT OF THE STRENGTH OF UNIVERSITY-INDUSTRY-GRI COOPERATION IN VIETNAM
Ngày tải lên :
23/04/2013, 10:29
... developed by the R&D units are not ready to be transferred to Industry or Industry is not prepared to assimilate these R&D results due to technical and economic factors To overcome these problems, ... importance to factor is indicated in Table 1.9 and percent of respondents giving first priority to various factors is shown in Figure I.12 Table 1.9: Individual importance to factors Priority / Factors ... factors from University to GRI 53 6.12 Magnitude flow of factors from GRI to University 53 6.13 Overall judgments for University and GRI linkage 53 6.14 Magnitude flow of factors from GRI to...
73
495
2
Behavior of Nitrite Oxidizers in the Nitrification/Denitrification Process for the Treatment of Simulated Coke-Oven Wastewater
Ngày tải lên :
05/09/2013, 09:38
... transported to the laboratory of UT at 4oCstored Then, each of the samples were divided into two One of them was for DNA extraction and was washed with TE buffer at pH8.0, and stored at -20oC Another ... was stored at -80oC The extraction of DNA was performed with Fast DNA SPIN Kit for Soil (Qbuiogene, USA) according to the instruction by the manufacturer In the preliminary step to nawwor down ... continuous activated sludge process was operated with simulated coak-oven from October 2002 to September 2003 The effective reactor consisted of 45L of anoxic tank and 135L of aerobic tank, and a sedimentation...
8
572
0
Xem thêm