a — benefits for research per se
Báo cáo hóa học: "Research Article Development of a Testbed for Wireless Underground Sensor Networks" ppt
Ngày tải lên :
21/06/2014, 23:20
... to preserve the physical structure of the hole for multiple experiments However, to perform the experiments, the sensor should also be covered with soil Therefore, the reuse of a hole for multiple ... presenting smaller variance in its qualifying results must be selected as the sender The same sender node can be used for all experiments in a single session However, the use of the same sender ... experiments is still a problem A possible solution for this issue is the use of paper pipes filled with soil In our testbed, additional 7.5 cm-diameter paper pipes are used for this purpose These...
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A Technique for Practising Conditional Sentence1
Ngày tải lên :
06/09/2013, 11:10
... Ask the first group to write only 'if clauses', and the second group only 'major clauses' Allocate a student-assessor in each group who will give points for accuracy, appropriateness and promptness ... by reading their half of a sentence, and the other group does their best to match it from their bank of clauses The assessors give independent 'verdicts' on the performance of each group At the ... types of conditionals Short Narrations In my experience, short narrations proved more beneficial to learners than separate sentences You will be surprised with the masterpieces that your learners...
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A Technique for Practising Conditional Sentences
Ngày tải lên :
06/09/2013, 11:10
... Ask the first group to write only 'if clauses', and the second group only 'major clauses' Allocate a student-assessor in each group who will give points for accuracy, appropriateness and promptness ... by reading their half of a sentence, and the other group does their best to match it from their bank of clauses The assessors give independent 'verdicts' on the performance of each group At the ... types of conditionals Short Narrations In my experience, short narrations proved more beneficial to learners than separate sentences You will be surprised with the masterpieces that your learners...
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A Testbed for Evaluating VoIP Service
Ngày tải lên :
30/09/2013, 07:20
... in order to increase the length of the emulated call This basic call setup method can be enhanced to perform a multistage call setup using personal identification number (PIN)-based caller authentication, ... developed HVB-based test suites and an oscilloscope-based setup for measuring postdialing delays and one-way voice transport delay In addition to measuring the DTMF digit transmission performance, ... scripts and suites (presented in Appendixes A, B, and C) to determine the call setup performance of the GWs under test All of the test suites use version 2.1.3 of Hammer’s operating system (HammerIT)...
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Tài liệu Communicable Diseases Summary: A Guide for School Health Services Personnel, Child Care Providers and Youth Camps doc
Ngày tải lên :
12/02/2014, 11:20
... Communicable Diseases Summary: Guide for Schools, Child Care, and Youth Camps Disease HAND, FOOT AND MOUTH DISEASE (various Coxsackieviruses) Incubation Period Usually 3-5 days Lesions may persist from ... Communicable Diseases Summary: Guide for Schools, Child Care, and Youth Camps Disease GONORRHEA (Neisseria gonorrhoeae, Gonococcus) HAEMOPHILUS INFLUENZAE type B (HIB) DISEASE Incubation Period 1-14 ... indicator of sexual abuse COMAR 10.16.06.35 requires camp operator to report child abuse [Also, see SHS “Guide for Emergency Care in Maryland Schools, 2005” section for “Child Abuse and Neglect”.]...
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Tài liệu Báo cáo khoa học: Infrared spectroscopy as a tool for discrimination between sensitive and multiresistant K562 cells doc
Ngày tải lên :
21/02/2014, 03:20
... were separated in a training set constituted of 48 samples of the cell line A and a test set composed of 30 spectra of cell line A and cell line B The training set was the only one used for model ... global secondary structure composition in the cells Reduced training set spectra was used for model building in LDA The results obtained show 100% of correct classification for the training set For ... variance Selection of wavenumbers with genetic algorithm The genetic algorithm is a supervised method that uses mutation/selection principles to solve problems [14] Many parameters can be adjusted for...
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Báo cáo khoa học: "Iterative Viterbi A* Algorithm for K-Best Sequential Decoding" docx
Ngày tải lên :
16/03/2014, 19:20
... for POS, CoNLL2000 and CoNLL 2003 datasets For supertag dataset, we use the same features for the word inputs, and the unigrams and bigrams for gold POS inputs For search query dataset, we use ... only reaches 11 sentences per second for CoNLL 2003 dataset The classic Viterbi A* can usually obtain a decent decoding speed, for example, 40 sentences per second for CoNLL 2003 dataset The only ... size for the five datasets POS and supertag datasets assign tags to tokens while CoNLL 2000 , CoNLL 2003 and search query datasets assign tags to phrases We use the standard BIO encoding for CoNLL...
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Báo cáo khoa học: "A CASE FOR RULE-DRIVEN SEMANTIC PROCESSING" pptx
Ngày tải lên :
31/03/2014, 17:20
... however, that cases can never play a more important role In the semantic representation It is possible for a case to have Its own expansion which contains information about how semantic predicates ... o w i n g section presents a system thaC uses syntactic cues at the semantic predicate level to find mappings directly This method has Inceresclng implications for theories about cases supports ... SUPPORT(rope,dresser) /1\ /1\ / I UP(fl,rope) \ ] DOWN(f2,dreeser) I CONTACT(rope,dresser) /1\ /l\ / I \ LOCPT(ropend2,rope)LOCPT(dreeserend2,dresser) I [ SAMZPLACE(ropmud2,dresserend2) Both the...
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implementing database security and auditing a guide for dbas, information secruity administrators and auditors
Ngày tải lên :
01/06/2014, 09:49
... application user model and the database user model Summary Align user models by communicating application user information Use row-level security (fine-grained privileges/access control) Use label security ... 388 Don’t create a false sense of security Opt for an independent/backup audit trail Architectures for external audit systems Archive auditing information Secure auditing information Audit the ... oversees the database environment, data/ database security, or the process by which database security and database audits are accomplished The book shows you how to secure and audit database environments...
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Báo cáo hóa học: " MASSP3: A System for Predicting Protein Secondary Structure" pdf
Ngày tải lên :
22/06/2014, 23:20
... the first successful methods based on ANNs that make use of evolutionary information to perform secondary structure prediction In particular, after searching similar sequences using BLASTP [12], ... in the prediction performance It is worth noting that also in this case a mixed strategy—in a sense similar to the one adopted for training ANNs—has been enforced, where the information contained ... accordance with the selected flexible matching mechanism Given an input x, all selected experts form the match set, denoted by M(x), which in turn can be partitioned into three separate subsets: Mα (x),...
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Báo cáo hóa học: " A Method for Assessment of Segmentation Success Considering Uncertainty in the Edge Positions" pptx
Ngày tải lên :
22/06/2014, 23:20
... metric The performance of both segmentation algorithms was assessed using SSR, for which a set of images was selected The selected test-image set included images with different patterns of temperature ... test set manually Several experienced operators must be used to compensate for the subjectivity of finding the edges in the images Each of the operators must provide an ideal segmentation for each ... (i) Select a subset of images that represents the set of images that are going to be segmented by the algorithm being evaluated (ii) Select a group of experienced operators to segment the images...
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Báo cáo khoa học: "Bench-to-bedside review: Is there a place for epinephrine in septic shock" pptx
Ngày tải lên :
12/08/2014, 23:20
... norepinephrine-dobutamine has been presented only in an abstract form [27] These preliminary results seem to demonstrate that there is no evidence for the superiority of Available online http://ccforum.com/content/9/6/561 ... norepinephrine-dobutamine (closed circles) Asterisks indicate p < 0.01 versus baseline (Reproduced from [8] with permission.) tonometry Conversely, also using air tonometry, we have frequently observed a decrease in ... December 2005 Vol No Levy in glucose production caused by an increase in hepatic glycogenolysis and an increase in gluconeogenesis There is also a marked increase in oxygen consumption (VO2) In...
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Báo cáo y học: "Bench to bedside: A role for erythropoietin in sepsis" pps
Ngày tải lên :
13/08/2014, 20:22
... increase in MAP and a rise in the peripheral vascular resistance [65] EPO has vasoconstrictor effects that could be useful in improving MAP and blood flow to the tissues in severe sepsis and septic ... consistent increase in the MAP in response to a single dose of EPO, mediated in part by an increase in the serum endothelin-1 level [63] In addition, EPO led to a marked increase in the vasoconstricting ... essential for the anti-apoptotic effects of EPO, although this not been seen in other cell types A carbamylated form of EPO (CEPO), which has low affinity for the classical EpoR and does not cause...
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báo cáo hóa học:" Research Article Multiple Positive Solutions for a Class of Concave-Convex Semilinear Elliptic Equations in Unbounded Domains with Sign-Changing Weights" pdf
Ngày tải lên :
21/06/2014, 11:20
... Ω3 Ω is a smooth subset of ÊN and the projections Ωy are bounded uniformly in y ∈ Êl ; Ω4 there exists a nonempty closed set D ⊂ ÊN−l such that D ⊂ Ωy for all y ∈ Êl ; Ω5 for each δ > 0, there ... such that for Boundary Value Problems λ ∈ 0, q/2 Λ0 , Eλa,b possesses at least two positive solutions The main aim of this paper is to study Eλa,b on the general unbounded domains see the condition ... solutions for λ ∈ 0, λ0 and has exactly one positive solution for λ λ0 and no positive solution exists for λ > λ0 For more general results of Eλ involving sign-changing weights in bounded domains, see...
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Báo cáo hóa học: " Research Article A Cross-Layer Approach in Sensing and Resource Allocation for Multimedia Transmission over Cognitive UWB Networks" docx
Ngày tải lên :
21/06/2014, 11:20
... using the ‘Foreman’ video sample and each user is allocated 14 μsec to perform local energy sensing Table shows the simulation parameters used JFR was used as performance metric to represent how ... Qf Without sensing With sensing Figure 10: Performance of probability of false alarm using ANDrule cooperative sensing under various SNR conditions 1 User quality is improved for users with quite ... design 3.2 Sensing Mechanisms Probability of detection, Pd , and probability of false alarm, P f , are the performance metrics used for spectrum sensing Using energy detection scheme, the sensed signal...
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Báo cáo hóa học: " Research Article A Fast Network Configuration Algorithm for TDMA Wireless Sensor Networks" pot
Ngày tải lên :
21/06/2014, 11:20
... the operation of the proposed algorithm using an experimental setup The remainder of this paper is structured as follows Section reviews related work in the context of TDMAbased protocols for ... SA-MAC+2CWSN Grid topology (Case B) SA-MAC+2CWSN Figure 3: Network setup times for Case A and Case B this protocol is able to perform the network configuration with a reasonable increase in the required ... improve the performance of CSMA/CA For instance, Sift is a medium access control which was introduced in [8] It makes use of a fixedsize contention window and nonuniform probabilities for selecting...
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báo cáo hóa học:" Research Article A Computational Auditory Scene Analysis-Enhanced Beamforming Approach for Sound Source Separation" pptx
Ngày tải lên :
21/06/2014, 20:20
... Grouping is then performed using only this subset of signals Experience and experimental results indicate that this type of beforegrouping pruning does not adversely affect performance and has ... partitioning algorithm, the performance measure, and a selection criterion to select the best partition based on the performance measure For CASA-EB, we have made the following choices For the minimum and ... and selecting the closest match While binaural CASA performance is impressive for a two microphone array (two ears), improved performance may be achieved by using larger arrays—as in beamforming...
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Báo cáo hóa học: " Research Article A Sharing-Based Fragile Watermarking Method for Authentication and Self-Recovery of Image Tampering" potx
Ngày tải lên :
21/06/2014, 22:20
... relevant to this research, are presented 2.1 Video source coding The video stream is encoded (compressed) according to the MPEG-2 standard [14, 15], which is commonly used as the format for digital ... size L, and error detection based on the CRC is performed When an error is detected, the packet is erased; otherwise, the packet is passed to the higher layers Because of fading, the received signal ... Considering as a performance figure the value of Eb /N0 that corresponds to E(no of GOPunrec in 12 hours) = 1, Table collects the performance figure for the different cases The following observations...
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Báo cáo hóa học: " Research Article A Real-Time Embedded Kernel for Nonvisual Robotic Sensors" pdf
Ngày tải lên :
21/06/2014, 22:20
... milliseconds; antiSensor a periodic task with period p10 = 2000 milliseconds Also, we choose the worst case task duration as C1 = 20 milliseconds (B1 = 500 milliseconds), then B2 = 480 milliseconds ... the periodic tasks which read the sensors with period p1 = p2 = · · · = p6 = 500 milliseconds; updateMap a periodic task with period p7 = 500 milliseconds; getOdo1, getOdo2 periodic tasks with period ... Pseudocode 4: Pseudocode of the jitter time test Pseudocode 3: Pseudocode of the context-switch test 4.2 Performance measures and comparisons Experimental results with respect to kernel performances...
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Báo cáo hóa học: " Research Article Hardware/Software Codesign in a Compact Ion Mobility Spectrometer Sensor System for Subsurface Contaminant Detection" ppt
Ngày tải lên :
22/06/2014, 00:20
... during the research phase of the sensor system development program Hardware implementations with state machines were used because accurate timing control is critical for some tasks and settings ... FSL busses, one for sending and the other for receiving data These high-speed, unidirectional links allow the DA FSM to pass data fast enough for the Microblaze to receive and process it before ... injected into the IMS for analysis These valves are controlled by swapping the high and low terminals and sending 20-millisecond, 5-V pulses to change the open/close state As these valves could not...
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