design and operation of a microalgae outdoor test facility otf in new mexico

The Design and Implementation of a Log-Structured File System

Ngày tải lên : 12/09/2012, 15:05

... example by writing them all in a single sequential transfer with only one seek Of course, writebuffering has the disadvantage of increasing the amount of data lost during a crash For this paper ... During reboot, Sprite LFS reads the checkpoint region and uses that information to initialize its mainmemory data structures In order to handle a crash during a checkpoint operation there are actually ... simply reading the latest checkpoint region and discarding any data in the log after that checkpoint This would result in instantaneous recovery but any data written since the last checkpoint would...

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Design and Implementation of a Three-Phase Induction Motor Control Scheme

Ngày tải lên : 27/10/2013, 23:15

... simulate the final FO control design where all parameters, processes and variables are modelled mathematically Furthermore, the MATLAB program can convert a MATLAB design into a C-code design in a ... A1 7 Gareth S Roberts Figure 4.3 The field weakening operation As can be seen, by maintaining a constant flux, increasing the applied voltage and frequency can proportionally increase the nominal ... values, that are in the rotating reference frame, are then converted into three-phase a, b, c values that are referenced in the stationary frame via inverse Clarke and Park transformations The inverse...

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Design and Simulation of A CMOS-MEMS Accelerometer

Ngày tải lên : 27/10/2013, 23:15

... capacitance can be measured, and the estimated value is calculated assuming a total sensing capacitance of 60fF Parasitic capacitance and mismatch of sensing capacitance is measured in a way as ... zero charge, and hold capacitors Ch’s are ﬂoating During the Integrate phase, the difference of charges on Ci1 and Ci2 are integrated to Cf1 and Cf2, and the outputs are preampliﬁed, sampled and ... Integrate 1, Sample 2, and Integrate During the Sample phase, Vs+ and Verror are sampled to sampling capacitor Ci1, and Vs- is sampled to Ci2 At the same time, integration capacitors Cf1 and Cf2 are reset...

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Tài liệu Design And Simulation Of A Cmos-Mems Accelerometer doc

Ngày tải lên : 22/12/2013, 08:16

... capacitance can be measured, and the estimated value is calculated assuming a total sensing capacitance of 60fF Parasitic capacitance and mismatch of sensing capacitance is measured in a way as ... zero charge, and hold capacitors Ch’s are ﬂoating During the Integrate phase, the difference of charges on Ci1 and Ci2 are integrated to Cf1 and Cf2, and the outputs are preampliﬁed, sampled and ... Integrate 1, Sample 2, and Integrate During the Sample phase, Vs+ and Verror are sampled to sampling capacitor Ci1, and Vs- is sampled to Ci2 At the same time, integration capacitors Cf1 and Cf2 are reset...

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Tài liệu Experiences in Design and Implementation of a High Performance Transport Protocol doc

Ngày tải lên : 15/01/2014, 15:59

... Efficiency and Fairness Characteristics • Takes 7.5 seconds to reach 90% of the link capacity, independent of BDP • Satisfies max-min fairness if all the flows have the same end-to-end link capacity ... (Additive Increase Multiplicative Decrease) • Fair: max-min fairness • Stable: globally asynchronously stable • But, inefficient and not scalable – In grid networks (with high bandwidth-delay product) ... shortcomings of TCP • We explained the design rationale and implementations details in this paper Future Work • Bandwidth Estimation • CPU utilization – Self-clocking – Code optimization • Theoretical...

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Tài liệu The Design and Performance of a Real-time CORBA Event Service doc

Ngày tải lên : 19/02/2014, 18:20

... such as Forward Looking Infrared Radar, requires a new Sensor Proxy, I/O Facades must be altered to take advantage of the new technology ample has the following participants: Aircraft Sensors: Aircraft-speciﬁc ... parameters of each schedulable operation One advantage of our approach is that operation invocations only pay the overhead of the C++ virtual method call If the schedule was not determined off-line, ... role of a mediator between ibility of tightly coupled software can substantially increase consumers and suppliers The Event Channel manages object the effort and cost of integrating new and improved...

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Tài liệu engineering geology applied to the design and operation of ungerground coal mines ppt

Ngày tải lên : 21/02/2014, 08:20

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Tài liệu Báo cáo khoa học: "DESIGN AND IMPLEMENTATION OF A LLXICAL DATA BASE " docx

Ngày tải lên : 22/02/2014, 09:20

... natural language processing systems are being developed For instance, a translation system or any other type of natural language processing program that must be able to handle very large amounts ... creating as well as the one of updating such huge databases represents an astronomical investment in terms of human resources which cannot be overestimated Whether it takes an average of, say minutes, ... derivation can be found with inflection Halle gives examples of accidental gaps such as defective paradigms, phonological irregularity (accentuation of Russian nouns) and idiosyncratic meaning Also,...

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**The Design and Implementation of a Sequence Database System * docx**

Ngày tải lên : 16/03/2014, 16:20

... on Management of Data, May 1994 [CS92] RakeshChandmand Arie Segev.ManagingTemporalFinancial Data in anExtensible Database .In Proceedings of the International Conference on Very Large Databases(VWB), ... that maintain statisticsand storeschemainformation Further, certain valuesmay be named Query Language: An E-ADT can provide a query language with which expressionsover values of/ that E-ADT can ... relational data as well as sequencedata, using a novel design paradigm of enhancedabstractdata types (BADTs ) The systemimplementation basedon this paradigmallows sequence relational queriesto interact...

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Báo cáo " Research, design and fabrication of a high-power combiner using Wilkinson bridge of L-band " pptx

Ngày tải lên : 22/03/2014, 11:20

... Thuy, Pham Van Thanh, Nguyen Anh Tuan, Bach Gia Duong, Research, Design And Fabrication Of The 45W And The 200W, L-Band Power Amplifier Using The Modern Microstrip Technology For Application In The ... high value, the input amplitude was set at -10dB and the output one was above 16dB The adjustment of current regime may increase the amplifying coefficient even more We have also investigated ... S11 factor of the power divider Wilkinson on network analyzer, the result was relatively similar to that of the simulink model Afterthat we have measured the characteristics of the power combiner...

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The Design and Implementation of a Java Virtual Machine on a Cluster of Workstations pptx

Ngày tải lên : 23/03/2014, 22:21

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API - 2510A - Fire-Protection Considerations for the Design and Operation of Liquefied Petroleum Gas (LPG) Storage Facilities

Ngày tải lên : 27/03/2014, 14:07

... spacing will not necessarily protect against a major accident, but it may prevent a minor incident from escalating into a major one The remaining design features of this document and API Standard ... Construction of Ethane and Ethylene Installations at Marine and Pipeline Terminals, Natural Gas Processing Plants, ReÞneries, Petrochemical Plants, and Tank Farms Std 2510 Design and Construction of LiqueÞed ... vapor space to a ßare system 2.9.5 TEST INSTRUMENTS AND ALARMS Critical instruments and alarms should be designed and installed to permit on-stream testing and repair of all components in the instrument/alarm...

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the symbian os architecture sourcebook design and evolution of a mobile phone os

Ngày tải lên : 01/06/2014, 11:21

... quarter Managing the success of the platform means managing compatibility better; adopting and adhering to open standards including tool and language standards (standard C++, the ARM EABI, and ... Kong, Australia and New Zealand By the mid-1990s, new GSM networks had sprung up globally from the Philippines and Thailand to Iran, Morocco, Latvia and Russia, as well as in the Americas and to a ... Palm, Compaq and Sharp (The Communicator was classiﬁed by market analysts as a PDA, partly because it had a keyboard, but also partly because Symbian phones really were a new category, and analysts...

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báo cáo hóa học: " The design and testing of a novel mechanomyogram-driven switch controlled by small eyebrow movements" docx

Ngày tải lên : 19/06/2014, 08:20

... scaling factor was selectable in the 1.2-2.5 range, and was adjusted for each participant such that false activations due to blinks and movement were avoided and participants were able to activate ... experimental protocol was approved by the hospital and university research ethics boards, and was in compliance with the Declaration of Helsinki Alves and Chau Journal of NeuroEngineering and Rehabilitation ... Natural Sciences and Engineering Research Council of Canada and the Canada Research Chairs program The authors acknowledge Mr Ka Lun Tam for his implementing the hardware interfaces, and Mr Pierre...

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Báo cáo hóa học: " Advancing donor management research: design and implementation of a large, randomized, placebo-controlled trial" pot

Ngày tải lên : 21/06/2014, 03:20

... 0.04 at the two interim and the final analyses, respectively Data safety and monitoring Safety considerations In a large randomized trial of intravenous albuterol (salbutamol) in acute lung injury, ... across a wide variety of critically ill patients with acute pulmonary edema Inhaled beta-2 agonists increase the rate of alveolar fluid clearance and reduce pulmonary edema in both animal and human ... randomized, clinical trial to test the efficacy of inhaled albuterol to increase the rate of alveolar fluid clearance and reduce pulmonary edema in brain-dead organ donors Study rationale The demand for...

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Báo cáo hóa học: " Research Article Design and Implementation of a Lightweight Security Model to Prevent IEEE 802.11 Wireless DoS Attacks" pdf

Ngày tải lên : 21/06/2014, 05:20

... consists of two areas as authorized and attacker The authorized area consists of two wireless stations associated to the access point which follow the IEEE 802.11 standard MAC layer The attacker area ... authors in [2] investigated the control frames vulnerabilities and adopted enhanced hmac-md5 and hmacsha1 (EHMAC) algorithms The format of RTS, CTS, and ACK frames was modiﬁed by adding extra 80 ... windows, some IEEE 802.11 standard notations [1, 27] are used which are identiﬁed in Table In the IEEE 802.11 standard, except for the unicast data and management frames that are transmitted in...

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Báo cáo hóa học: " Research Article Design and Implementation of a Generic Energy-Harvesting Framework Applied to the Evaluation of a Large-Scale Electronic Shelf-Labeling Wireless Sensor Network" pdf

Ngày tải lên : 21/06/2014, 11:20

... that can emulate energy harvesters and (rechargeable) batteries Energy Harvesting Framework at Testbed As already stated in the introduction, real-life testbeds and simulation platforms are indispensable ... evaluated a retail application but it is possible and desirable to evaluate other application domains like agricultural machinery, building or home automation, structural health monitoring, and ... 3A7 3A4 3A1 3A1 0 3A1 5 3A8 3A1 6 3A9 3A2 3A6 3A3 Figure 13: Spatial distribution of the individual success rate in the Castalia simulator categories: green = best, yellow, orange, and red (least...

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báo cáo hóa học:" Research Article Design and Implementation of a Testbed for IEEE 802.15.4 (Zigbee) Performance Measurements" doc

Ngày tải lên : 21/06/2014, 18:20

... in an open source Mandriva Linux 2008 environment Once the BS and transmitter nodes are in place and activated, the test begins by running BaseStation.java as a console command Three of the input ... for each trial A second Java program (Analyze.java) was developed to analyze the saved ﬁles containing the received packets Since the transmitted data is known, this program can easily calculate ... 915 MHz and 2.45 GHz bands A model is developed for path loss, small-scale fading, and RMS delay spread Another indoor application is building monitoring Wilson et al in [10] created an advanced...

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báo cáo hóa học:" Research Article Design and Implementation of a Single-Frequency Mesh Network Using OpenAirInterface" docx

Ngày tải lên : 21/06/2014, 18:20

... physical layer is abstracted and emulated over the ethernet This approach allows to test and investigate MAC and link-level algorithms without using the radio interface [1] The OpenAirInterface can ... equal energy alphabets (such as 16-QAM), it is the minimization problem of a quadratic function again trimming one complex dimension of the system In that case, the real and imaginary parts of ... scheduler In the case of one available spatial stream the STF parser also performs fast antenna cycling, that is, every subcarrier is transmitted from a diﬀerent antenna This way each stream can access...

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