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PHP is a powerful language to develop dynamic and interactive web applications. One of the defining features of PHP is the ease for developers to connect and manipulate a database. PHP prepares the functions for database manipulation. However, database management is done by the Structure Query Language (SQL). Most novice programmers often have trouble with SQL syntax. In this paper, we present the PHP framework for database management based on the MVC pattern. The MVC pattern is very useful for the architecture of web applications, separating the model, view and controller of a web application. The PHP framework encapsulated, common database operations are INSERT, UPDATE, DELETE and SELECT. Developers will not be required to consider the specific SQL statement syntax, just to call it the method in the model module. In addition, we use White-Box testing for the code verification in the model module. Lastly, a web application example is shown to illustrate the process of the PHP framework. ...
Journal of Technical Analysis is published by the Market Technicians Association, Inc., (MTA) 61 Broadway, Suite 514, New York, NY 10006. Its purpose is to promote the investigation and analysis of the price and volume activities of the world’s financial markets. Journal of Technical Analysis is distributed to individuals (both academic and practitioner) and libraries in the United States, Canada and several other countries in Europe and Asia. Journal of Technical Analysis is copyrighted by the Market Technicians Association and registered with the Library of Congress. All rights are reserved. 2 Journal of Technical Analysis • 2009 • Issue 66 Letter from the Editor For decades I carried a quote in my wallet from Albert Einstein that goes something like this: As one grows older, one sees the impossibility of imposing one’s will on the chaos with brute force. But if you are patient, there will come that moment in time, when while eating an apple, the solution will present itself politely and say, “Here I am.” We most certainly live in a historic period that many describe as chaotic, but experienced technical analysts around the world reflect in private moments and say “Here we are – again.” The solutions we obtain from our charts come most often in quiet moments only after years of preparation, exhaustive research, and at least a decade of experience. It is this combination that creates an inner calm, allowing solutions to present themselves politely when so many people are in a state of panic and lacking clarity. I believe this issue of the Journal of Technical Analysis will provide insight to many readers about the depth of commitment the authors needed to obtain confidence in the methodologies they employ. This is an exceptional issue showing diversity and depth that will add to our understanding and will serve to guide us all on how best to present our own research summaries. Who will be motivated by this Journal to accept the challenge described at the end of my letter? The MTA Journal of Technical Analysis announced changes in our manuscript review board this year. What does the review board actually do for you? To quote one author whose paper was not accepted, ‘This kind of feedback is invaluable.’ There is more to the review process than you may be aware. While we have an important role to accept papers that reflect the highest standards within our industry, we also strive to further encourage and guide aspiring authors with very detailed comments to further the development of their work.
Technical Analysis in the Foreign Exchange Market Christopher J. Neely and Paul A. Weller Working Paper 2011-001B http://research.stlouisfed.org/wp/2011/2011-001.pdf January 2011 Revised July 2011 FEDERAL RESERVE BANK OF ST. LOUIS Research Division P.O. Box 442 St. Louis, MO 63166 ______________________________________________________________________________________ The views expressed are those of the individual authors and do not necessarily reflect official positions of the Federal Reserve Bank of St. Louis, the Federal Reserve System, or the Board of Governors. Federal Reserve Bank of St. Louis Working Papers are preliminary materials circulated to stimulate discussion and critical comment. References in publications to Federal Reserve Bank of St. Louis Working Papers (other than an acknowledgment that the writer has had access to unpublished material) should be cleared with the author or authors. Prepared for Wiley’s Handbook of Exchange Rates Technical Analysis in the Foreign Exchange Market Christopher J. Neely* Paul A. Weller July 24, 2011 Abstract: This article introduces the subject of technical analysis in the foreign exchange market, with emphasis on its importance for questions of market efficiency. “Technicians” view their craft, the study of price patterns, as exploiting traders’ psychological regularities. The literature on technical analysis has established that simple technical trading rules on dollar exchange rates provided 15 years of positive, risk-adjusted returns during the 1970s and 80s before those returns were extinguished. More recently, more complex and less studied rules have produced more modest returns for a similar length of time. Conventional explanations that rely on risk adjustment and/or central bank intervention do not plausibly justify the observed excess returns from following simple technical trading rules. Psychological biases, however, could contribute to the profitability of these rules. We view the observed pattern of excess returns to technical trading rules as being consistent with an adaptive markets view of the world. Keywords: exchange rate, technical analysis, technical trading, intervention, efficient markets hypothesis, adaptive markets hypothesis
Technical analysis, also known as “charting,” has been a part of financial practice for many decades, but this discipline has not received the same level of academic scrutiny and acceptance as more traditional approaches such as fundamental analysis. One of the main obstacles is the highly subjective nature of technical analysis—the presence of geometric shapes in historical price charts is often in the eyes of the beholder. In this paper, we propose a systematic and automatic approach to technical pattern recognition using nonparametric kernel regression, and we apply this method to a large number of U.S. stocks from 1962 to 1996 to evaluate the effectiveness of technical analysis. By comparing the unconditional empirical distribution of daily stock returns to the conditional distribution—conditioned on specific technical indicators such as head-and-shoulders or double-bottoms—we find that over the 31-year sample period, several technical indicators do provide incremental information and may have some practical value. ONE OF THE GREATEST GULFS between academic finance and industry practice is the separation that exists between technical analysts and their academic critics. In contrast to fundamental analysis, which was quick to be adopted by the scholars of modern quantitative finance, technical analysis has been an orphan from the very start. It has been argued that the difference between fundamental analysis and technical analysis is not unlike the difference between astronomy and astrology. Among some circles, technical analysis is known as “voodoo finance.” And in his inf luential book A Random Walk down Wall Street, Burton Malkiel ~1996! concludes that “@u#nder scientific scrutiny, chart-reading must share a pedestal with alchemy.” However, several academic studies suggest that despite its jargon and methods, technical analysis may well be an effective means for extracting useful information from market prices. For example, in rejecting the Random Walk * MIT Sloan School of Management and Yale School of Management. Corresponding author: Andrew W. Lo ~firstname.lastname@example.org!. This research was partially supported by the MIT Laboratory for Financial Engineering, Merrill Lynch, and the National Science Foundation ~Grant SBR– 9709976!. We thank Ralph Acampora, Franklin Allen, Susan Berger, Mike Epstein, Narasimhan Jegadeesh, Ed Kao, Doug Sanzone, Jeff Simonoff, Tom Stoker, and seminar participants at the Federal Reserve Bank of New York, NYU, and conference participants at the ColumbiaJAFEE conference, the 1999 Joint Statistical Meetings, RISK 99, the 1999 Annual Meeting of the Society for Computational Economics, and the 2000 Annual Meeting of the American Finance Association for valuable comments and discussion.
International environment protection initiatives have led to the intensification of research efforts on development of ozone and global warming safe heat pump technology. Adsorption refrigeration has been intensively investigated in Japan, Europe and USA, because of its promising potential for competing with conventional vapor compression refrigeration. During the last decade, a lot of work has been carried out in this field, with a certain amount of success. To reach a truly practical / applicable and cost effective solar refrigeration technology, some key innovation work must be completed. With the progress in the fields of the adsorbent material production and solar energy collecting technology, there is a real possibility to achieve commercialization of such systems. This paper presents the decription and operation of a solar-powered icemaker with solid adsorption pair of activated carbon and methanol. A domestic type of charcoal is chosen as the adsorbent , and a simple flat-plate collector with an exposed area of 0.92 m2 is employed to produce ice of about 4-5 kg/day. Also, it is intended to introduce a hybrid system consisting of solar water heater and icemaker, which can satisfy the requirements of both the solar ice-making needs as well as good heat collection and heat release in the adsorber. It is expected that by introducing such method using the newly developed ACF, the total efficiency of the system can be increased by about 30 %. This idea is simple and also expected to be effective, since, the hybrid system of solar powered water heater and refrigerator will be able to satisfy both heating and cooling needs, thereby increasing the total efficiency of the system. Although this device is designed just for solar energy utilization, it can be applied to many energy saving fields such as waste heat recovery in industry, and in the exhaust gas-driven air conditioning. Such a novel concept of energy utilization would also contribute to more efficient methods for sustainable development.
This paper presents the description and operation of a simple structure, low cost solar-powered adsorption refrigeration module with the solid adsorption pair of local domestic type charcoal and methanol. The module consists of: a––modiﬁed glass tube having a generator (sorption bed) at one end and a combined evaporator and condenser at the other end and, b––simple arrangement of plane reﬂectors to heat the generator. The testing of the module is mainly focused on the sorption bed, therefore, four types (1–4) of bed techniques and four reﬂector arrangements (A–D) to heat the sorption bed had been proposed and tested under climatic condition of Cairo (30° latitude). The angles of inclination of the reﬂectors are varied every month to receive maximum solar energy at noon time. Glass shell is also used to cover the beds in winter. Test results show that, the module composed of the bed technique Type 4 and reﬂector’s arrangement Type C gives best performance. The time duration during which the bed temperature is above 100 °C was found to be 5 h, with a maximum temperature of 120 °C in winter. In summer, the corresponding values 6 h and 133 °C. During cooling, the minimum bed temperature recorded in either winter or summer time is very close to the ambient temperature due to the absence of bed insulation. The daily ice production is 6.9 and 9.4 kg/m2 and net solar COP is 0.136 and 0.159 for cold and hot climate respectively. Ó 2004 Elsevier Ltd. All rights reserved. Keywords: Charcoal–methanol pair; Glass tube module; Plane reﬂectors; Solar energy; Solid adsorption refrigeration * Fax: +20-2-337-09-31. E-mail address: email@example.com (N.M. Khattab). 1359-4311/$ - see front matter Ó 2004 Elsevier Ltd. All rights reserved. doi:10.1016/j.applthermaleng.2004.04.001
Solar Cells and Quantum Dots – A White Paper Dr. Dennis J. Flood Natcore Technology, Inc. The block of single crystal silicon pictured below would have a mass of 28 grams and would contain over 1023atoms. That is nearly a quadrillion billion atoms. 2 cm 2 cm 3 cm A block of single crystal silicon. Examination of the block of silicon under a very powerful electron microscope will reveal that the atoms are arranged in a very definite pattern called the lattice structure. The lattice structure of single crystal silicon. If we were to divide the block in half, then divide one of those pieces in half and repeat the process for a total of 65 times we would end up with a piece of silicon with an average side about 3 nanometers (one billionth of a meter) long and it would contain roughly 200 atoms. This tiny piece of silicon we call a quantum dot. Silicon quantum dots with dimensions as small as 1 nanometer have been made. When the pieces of silicon get to the quantum dot size they start to no longer look like cubes but more like little pyramids or the caps of hemispheres, hence the name quantum dot. The remarkable thing about silicon quantum dots is that they essentially retain the same lattice structure as the larger block with which we started. The much smaller size, however, means that the usual electronic properties we would see with the larger block of silicon are changed in some very dramatic ways. One of the changes has to do with how silicon interacts with light. Ordinary silicon does not emit radiation in the visible part of the spectrum at all and emits only weakly in the longer wavelength, or infrared, part of the spectrum. All that changes in the quantum dot size regime. Adjusting the dimensions of a silicon quantum dot will enable it to emit light in the visible part of the spectrum. Each one of the vials in the figure below contains silicon quantum dots,
In 1926 Ducati has been among the first to start industrial production of capacitors, and has been a market leader ever since. Since its foundation, Ducati Energia has always been in the forefront of technical and industrial development, leading the research shaping today’s technology and cooperating to the upgrades and improvements leading to the current IEC and EN Standards for Capacitors. Ducati Energia firstly introduced the Metallised Polypropylene Film technology and it’s innovative PPM and PPMh film set the reference for this technology, outclassing the obsolete paper/oil and gas technology in terms of superior performance and reduced dimensions. Constantly driven to quality, environmental engagement and safety, Ducati Energia is fully certified following ISO 9001:2008, ISO 14001 and OHSAS 18001. Today the Ducati Energia Group counts approx. 800 employees working in 6 plants: • Ducati Energia (Bologna - Italy) • Ducati Energia Romania (Busteni - Romania) • Ducati Komponenti (Ludbreg - Croatia) • Ducati Energia India (Pune - India) • C.R.D. Centro Ricerche Ducati (Trento - Italy) • Ducati Energia Sud America (Buenos Aires - Argentina) Ducati Energia Group main fields of activities are: • Motor Lighting Capacitors • Power Electronics Capacitors • Power Factor Correction Capacitors and Systems (LV and MV) • Alternators and Ignition Systems • Wind Power Generators • Electrical Vehicles and Charging Stations for Electrical Vehicles • Energy Analysers • Control Systems for energy grids • Railways Signalling systems • Ticketing and Transport Automation systems
Joanne Kathleen Rowling's series of novels about Harry Potter has attracted the attention of numerous literary critics. This paper questions the problems of multiple readings from the viewpoint of feminist literary theory. We can observe considerable differences in the approach of various literary critics to Rowling's series and the opinions of these critics are equally varied. They claim that these are sexist novels, feminist novels, novels for boys, novels in which girls can find role-models and novels in which the author seeks to assert herself through the discourse of fictional text. It is concluded that the novels analyzed can be read from multiple perspectives and that Rowling succeeds in making the reader aware of the problems of male-female relations by positioning the characters on opposite sides with regard to emotional relations, relations towards different people and the family and towards society in general, as well as through convincing and impressionable characterization. Key Words: Harry Potter, feminist literary theory and criticism, multiple readings, relationships between sexes
Card Game G CONTENTS 112 Cards as follows: 19 Blue cards - 0 to 9 19 Green cards - 0 to 9 19 Red cards - 0 to 9 19 Yellow cards - 0 to 9 8 Draw Two cards - 2 each in blue, green, red and yellow 8 Reverse cards - 2 each in blue, green, red and yellow 8 Skip cards - 2 each in blue, green, red and yellow 4 Wild cards 4 Wild Draw Four cards 4 Voldemort cards INSTRUCTION SHEET SPECS: Uno Instructions Toy: T8231 Toy No.: -0920 Part No.: 4.25” W x 19.25 " H Trim Size: 4.25” W x 2.75” H Folded Size: 1 panel w 7 panel h Type of Fold: Object of the Game 1 (one) both sides # colors: Be the ﬁrst player to get rid of all of your cards in each round and score points for the cards your opponents are left holding. Points in rounds accumulate and the ﬁrst player to reach 500 points wins.. Black Colors: White Offset Paper Stock: 70 lb. Paper Weight: Setup EDM No.: 1. Each player draws a card; the player that draws the highest number deals (count any card with a symbol as zero). 2. The dealer shufﬂes and deals each player 7 cards. 3. Place the remainder of the deck facedown to form a DRAW pile. 4. The top card of the DRAW pile is turned over to begin a DISCARD pile. NOTE: If any of the Action Cards (symbols) are turned over to start the DISCARD pile, see FUNCTIONS OF ACTION CARDS for special instructions. Let’s Play The person to the left of the dealer starts play. On your turn, you must match a card from your hand to the card on the top of the DISCARD pile, either by number, color or symbol (symbols represent Action Cards; see FUNCTIONS OF ACTION CARDS). EXAMPLE: If the card on the DISCARD pile is a red 7, the player must put down a red card OR any color 7. Alternatively, the player can put down a Wild card (See FUNCTIONS OF ACTION CARDS). If you don’t have a card that matches the one on the DISCARD pile, you must take a card from the DRAW pile. If the card you picked up can be played, you are free to put it down in the same turn. Otherwise, play moves on to the next person in turn. You may also choose NOT to play a playable card from your hand. If so, you must draw a card from the DRAW pile. If playable, that card can be put down in the same turn, however you may not play any other card from your hand after the draw.