the design and development of a solar powered refrigerator

... consists of a stargate board, an ADC board, a battery, a fluorometer and an array of thermistors, which are mounted on a wooden chassis and sealed inside a waterproof container (Fig 1) The stargate ... in-situ measurements and analysis of chemical and physical factors governing the abundances and dynamics of microorganisms at biologically-relevant spatiotemporal scales The goal of the network ... enters the lake at the northeast end and passes through an adjacent marsh area before reaching the lake proper Temperatures at 15:00 and 18:00 indicated a uniform warming of surface waters (approximate

Ngày tải lên: 18/10/2022, 05:58

... 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 ... experiments, and edited the manuscript. All authors read and approved the final version of the manuscript. Acknowledgements This work was supported in part by an Ontario Graduate Scholarship, Natural ... algorithm, designed the perfor- mance tests, performed data collection, analyzed the data, and drafted the manuscript. TC conceived the study, advised on the design and coordination of the experiments,

Ngày tải lên: 19/06/2014, 08:20

... for higher layer to provide connection and data reliability mechanism A UDP datagram has a header and a payload The application data is carried as payload and the header... possibility ... Han Binhua, Premalatha Naidu, Wei Ming Long, Huang Xiao Gang, Wang Hai Chen, Meng Bin, Jimmy Jiang, Lalitha Ekambaram and Law Sie Yong. Special thanks to Patrick Khoo Beng Teck, the team’s manager ... data transport and demonstrate the integrated feature of network and storage functionalities as a means of delivering efficient and reliable service to applications We also Chapter

Ngày tải lên: 16/09/2015, 15:54

... of the same is laid out so as to increase the surface area of the heat sink. The advantages of the heat pipe cooling are that thermal energy is moved away from the hot area, and spread over a ... 1.105 2. At this COP, the heat flux at the evaporator is 4.85 W/ cm2 and EAC maintains the load surface and evaporator temperatures at 23.2oC and 18.6oC. 3. At the steady state condition, the amount ... pump and has the ability to generate refrigerant flow far greater than the usual gravity effect. As a result, the foam is able to draw the surrounding liquid and makes all foam surface areas wet.

Ngày tải lên: 04/10/2015, 10:25

... analysis of the samples. Her experiences and dedication to work make my work easier and simpler and provided me with adequate background to analyse the data. I thank the administrative staff, Grace ... In addition, the fascicles are surrounded by a sheath of vascularised and transparent recticular membrane... appropriate extracellular matrix and must be able to survive in an intraarticular ... and approximately... biologic materials such as collagen and silk, as well as biodegradable polymers and composite materials [poly(glycolic acid) (PGA), silk, and collagen] Use of an

Ngày tải lên: 04/10/2015, 10:25

... where the parasitic capacitance can be lumped to the main capacitance. Another alternative is to use a MOS capacitor, which is actually the gate capacitance of a MOS transistor. As the gate length ... with the smallest area. The spiral inductor can be of rectangular shape, octagonal shape, circular or other shapes. 2.3.2 Capacitor There are a few ways to realize a capacitor in a CMOS process. ... polysilicon and is used at the polysilicon at the gate of the transistor. Design and Development of a CMOS Power Amplifier for Digital Applications 14 CHAPTER 3: Fundamentals of Power Amplifier CHAPTER

Ngày tải lên: 04/10/2015, 10:25

... guideline of social robots’ appearances, capabilities and performance varies mainly as the purpose of the research or applications. Table 13 summarizes the appearance and capabilities of social robots ... arms, hands, legs. Android exhibits appearance (and behavior) which is as close to a real human appearance as technically possible. 15 Roomba AUR Mechanoid BotBrain Nexi Humanoid Saya Android Ishiguro Geminoid Tiff Human Figure ... based on the definition of mechanoid and humanoid adopted by Gong and Nass [10] and Android from Mac-Dorman and Ishiguro [11]. Mechanoid is a robot that is relatively machine-like in appearance

Ngày tải lên: 04/10/2015, 10:26

... stats, and author profiles for this publication at: https://www.researchgate.net/publication/310954376 A study of the design and construction of a 3D printer using FDM technology based on the ... CITATIONS    PUBLICATION   0 CITATIONS    SEE PROFILE Some of the authors of this publication are also working on these related projects: VNM.ROV-01 View project All content following this page ... content following this page was uploaded by Quoc-Nam Tang on 22 December 2018 The user has requested enhancement of the downloaded file SEE PROFILE View publication stats

Ngày tải lên: 30/11/2021, 21:30

... hampered by the systems’ overall size and weight, and their high cost of ownership and maintenance The availability of a lab-on -a- chip (LOC)-based solution for multigas analysis could open the ... interaction of light with the molecules of interest and the relaxation process; (iv) the creation and propagation of acoustic waves in the cell; and finally (v) the acoustic wave sensing by the ... validity of these hypotheses should be checked again The rate equation approach is adequate to study the joint effects of absorption and excited molecules relaxation, and therefore delineate the

Ngày tải lên: 01/11/2022, 09:02

... provides a comparison of the various methods to balance a bicycle, evaluated their advantages and disadvantages. The most significant contribution of this research is the use of a CMG as an actuator ... the various methods to balance a bicycle, evaluated their advantages and disadvantages The most significant contribution of this research is the use of a CMG as an actuator to balance ... used as an actuator other than on large spacecraft to control the attitude of large spacecraft and space infrastructure such as the International Space Station [15] There are many reasons

Ngày tải lên: 02/10/2015, 17:14

... know that the capacitance (stated in terms of the amount of charge (Q) stored at a given voltage drop (across the capacitor)) of a capacitor is given by (1) (Note that: the SI unit of capacitance ... is the farad; farad = coulomb per volt; typical capacitances are measured in microfarads or picofarads) 5.2.1 The Virtual Capacitor To implement the law of Coulomb, a TinyOS application was developed ... 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

Ngày tải lên: 21/06/2014, 11:20

... on a transnational basis... Enter your data into the computer and keep them there Computerize: • • • • • • Case report forms Laboratory instruments Data storage and retrieval Data analysis ... of the delays And why the delays? So our manager won’t rock the boat, be caught... to ask redundant questions Store and retrieve character data in character form “0” and 1 may ... the last twenty-five years as a consultant to drug and device firms As a consultant, I was always called in at the last moment to “fix” the problem The “fix” took months and was generally

Ngày tải lên: 14/08/2014, 07:20

... appropriate software for data entry, data management, and statistical analysis is normally divided among the lead software engineer, the data manager, and the statistician (subject, of ... duration of the study, virtually all members of the design and implementation... a general knowledge of both data entry and data management software and be able to prepare and ... A typical set of clinical trials today costs what that wasted space shot did in the 1950s. We needn’t make the same mistakes that were made back then. Find the discrepancies and take advantage

Ngày tải lên: 14/08/2014, 07:20

... are packaged; specify the allowable tolerances; repackage or relabel drugs at the pharmacy so that both the patient’s name and the code number appear on the label; draw random samples from the ... 58 PART I PLAN trials are completed and the data analyzed, there is no rational basis for other than a random assignment Warning: An investigator who has strong feelings for or against ... narrow a claim may force you to undertake a set of near- duplicate trials at a later date. Too broad a claim may result in with- drawal of the petition for regulatory approval simply because the

Ngày tải lên: 14/08/2014, 07:20

... To maintain the validity of a fractional factorial design one has to be able to assume that the effect of Treatment A is the same at all levels of the cofactor and in all subgroups. Again, these ... demonstrate both efficacy and safety. A sample size that might be adequate for demon- strating the one may be far too small to establish the other. The chief advantage of crossover and fractional factorial ... gradually even out again or perhaps go the other way. But if further trials sustain the advantages of one treat- ment over another, then a greater and greater proportion of patients will be assigned

Ngày tải lên: 14/08/2014, 07:20

... view the log as the most up to date ‘‘truth’’ about the state of the data on disk. The main difference is that database systems do not use the log as the final repository for data: a separate data ... again. The bandwidth of each of the five phases is shown separately. Sprite LFS has a higher write bandwidth and the same read bandwidth as SunOS with the exception of sequen- tial reading of a file ... in part by the National Aeronautics and Space Administration and the Defense Advanced Research Projects Agency under contract NAG2-591. This paper will appear in the Proceedings of the 13th ACM...

Ngày tải lên: 12/09/2012, 15:05

... registration, location, and acti- vation; request demultiplexing; framing and error-handling; parameter marshalling and demarshalling; and operation dis- patching. Figure 1 illustrates the primary components ... If the avail- ability of new hardware, such as Forward Looking Infrared Radar, requires a new Sensor Proxy, I/O Facades must be al- tered to take advantage of the new technology. 3.6 Alleviating ... its deadline will be met, based on the published parameters of each schedulable operation. One advantage of our approach is that operation invoca- tions only pay the overhead of the C++ virtual...

Ngày tải lên: 19/02/2014, 18:20

... Catalog Management: Each E-ADT can provide catalogs that maintain statistics and store schema information. Further, certain values may be named. Query Language: An E-ADT can provide a query ... object-relational database system Illustra [I11941 provides database support for time-series data along with relational data. A time-series is an ADT(Abstract Data Type) value implemented a& amp; a large ... on top of a layer of common database utilities that all E-ADTs can use. Code to handle arithmetic and boolean expressions, constant values and functions is part of this layer. An important component...

Ngày tải lên: 16/03/2014, 16:20

... MATLAB design The MATLAB design constructed is used to simulate the final FO control design where all parameters, processes and variables are modelled mathematically. Furthermore, the MATLAB ... electrical properties that are of particular interest to this thesis project are the stator and rotor’s resistance and inductance, as well as the magnetizing inductance. During steady state, the ... how a hybrid car works. Within this article, the definition of the hybrid car and its potential advantages are stated. The concept of the parallel hybrid car is presented. This is a car design...

Ngày tải lên: 27/10/2013, 23:15

... major parameters of the device. Only the ratio of parasitic capacitance and sensing capacitance can be measured, and the estimated value is calculated assuming a total sensing capacitance of 60fF. ... of 60fF. Parasitic capacitance and mismatch of sensing capacitance is measured in a way as shown in Figure 5.4. The capac- itance ratios are derived from the ratios of driving signals and buffer ... of the proofmass which can be measured by several means. For the capacitive sensing approach, the displacement is detected by measuring the capacitance change between the proofmass and adjacent...

Ngày tải lên: 27/10/2013, 23:15