Sun Tracking Control Strategy Engineering Essay

It is good known that in theory, 41 % more sunshine is available by tracking the PV faculty to follow the day-to-day class of the Sun, comparative to fixed installings. The overall aim of this survey is to develop a control algorithm that improved public presentation and dependability the two-axis solar tracker. To accomplish this end, this survey dressed ore on optimising the LM3S811 based accountant board, thrust hardware and package. Keywords: embedded system design, two-axis Sun trailing, control algorithm.A ±ntroductA ±onSolar energy systems and equipment such as PV and twenty-four hours illuming systems, solar aggregators, and solar-powered heat engines work best when their aggregators aim straight at the Sun. Adding a solar tracker to these systems increases their efficiencies at the disbursal of initial and operational costs and system complexness. It has been estimated that the usage of a trailing system, over a fixed system, can increase the power end product by 20 % – 40 % with cost addition 10 % -30 % [ 1-3 ] . Since the Sun ‘s place in the sky alterations with the seasons and the clip of twenty-four hours, tracker is used to aline the aggregation system to maximise energy production. Several factors must be considered when finding the usage of trackers. Some of these include: the solar engineering being used, the sum of direct solar irradiation, feed-in duties in the part where the system is deployed, and the cost to put in and keep the trackers. Concentrated applications like concentrated photovoltaic panels ( CPV ) or concentrated solar power ( CSP ) require a high grade of truth to guarantee the sunshine is directed exactly at the focal point of the reflector or lens. The two basic classs of trackers are individual axis and double axis. Single axis solar trackers can either hold a horizontal or a perpendicular axis. In concentrated solar power applications, individual axis tracker is used with parabolic and additive Fresnel mirror designs. Dual axis solar trackers have both a horizontal and a perpendicular axis leting them to track the Sun ‘s evident gesture virtually anyplace in the universe This paper presents a control scheme for a two axes solar tracker that is executed in an ARM based Stellaris L3S811 microcontroller. Correct sun place is inferred from the GPS. The proposed control scheme consists of a combination between ; an unfastened cringle tracking scheme, and a closed cringle scheme. The overall aim of this survey is to develop a control algorithm that improves public presentation and dependability the two-axis Sun tracker. To accomplish this end, this survey concentrates on optimising the accountant board, thrust hardware and package.Two-axA ±s Sun trackerThe Sun ‘s beams can be decomposed into two constituents, one perpendicular to the panel surface, and the other analogue to the surface, where merely the former radiation can be received by the panel. Therefore, the angle between the Sun ‘s beams and the normal of the panel which is called the incident angle should be every bit little as possible. Incidence angle alterations with the diurnal an d seasonal fluctuations. Therefore, the fixed-installed solar aggregators can non to the full absorb the solar radiation energy. If at any clip by automatically tracking solar aggregators, panel place can be adjusted harmonizing to the Sun ‘s flight to cut down the incidence angle ; it will be able to absorb more solar radiation energy than the fixed panels in the same irradiation conditions. The panel of dual-axis Sun tracking system rotates around the two reciprocally perpendicular shafts, AZ shaft and lift shaft, shown in Fig 1. It will track the Sun ‘s AZ angle and lift angle, so that the panel can accomplish incident angle of 0. Two methods are normally used in solar trailing to place and follow the place of the Sun at any blink of an eye of clip between dawn and sundown: the closed cringle control method and the unfastened cringle control method. The closed cringle control method uses several feedback detectors such as LDR, photodiode, light-intensity detectors, mention cells and a signal processing circuit [ 4-6 ] . The signal processing circuit compares the end product signals of the detectors and operates on a feedback cringle with the coveted signal status. The end of the cringle is to bring forth maximal entire mistake signal from detectors by continuously seting the tracker way until the shadow on the detectors is the lower limit. A drawback of the closed cringle control method is that it can non efficaciously track the Sun on a cloudy twenty-four hours without a robust algorithm. Fig. -Structure of the two-axis Sun tracker. The unfastened cringle control method uses the longitude and latitude informations of the solar tracker location to find and track the place of the Sun [ 7, 8 ] . It has the advantages of easy scheduling and high truth. The system is simpler and cheaper than the closed-loop type of Sun tracking systems [ 9 ] . It does non detect the end product of the procedures that it is commanding. However, a fixed get downing way of the tracker at dawn every twenty-four hours is required in this method. Therefore, the get downing way of the tracker must be corrected from clip to clip. Consequently, an open-loop system can non rectify any mistakes so that it could do and may non counterbalance for perturbations in the system.Specifying Elevation and Azimuth AnglesThe algorithm for Sun trailing uses the solar lift, i? ±e and azimuth, i? ±A angles computed at the solar tracker location. The tracker must be aligned horizontally to find the lift and AZ angles accurately along with the hr and decli ne angles with regard to the heavenly equator or plane as depicted in Fig.1. Solar lift, i? ±e is the angle between the skyline and the line linking the beginning and the Sun that is, the complement of the zenith angle. Solar AZ, i? ±A is the angular supplanting of the projection of the line to the Sun onto the horizontal plane from the south axis. The solar lift angle, i? ±e, of the orientation system in the perpendicular plane, ?e, can be calculated as follows [ 9 ] sini? ±e=sini? ¤ sini? ¦ +cosi? ¤ cosi? ¦ cosi? · ( 1 ) Where e is the lift angle of the system i? ¦ is the latitude. is the hr angle ( 15 & A ; deg ; / hr ) , where ? = 0 at local midday. is the solar decline, where ? is calculated from Cooper ‘s equation, ( 2 ) N is the twenty-four hours of the twelvemonth ( 1 – 365 ) with N = 1 stand foring the 1st of January. Fig. – The relation between lift and zenith angles. The azimuth angle of the system in the horizontal plane, ?A, is calculated as [ 9 ] . ( 3 ) The solar trailing system normally returns to its initial remainder place after sundown, and starts to track the Sun after the Sun rises above the skyline. The dawn and sunset times can be calculated utilizing [ 13 ] for system location.DesA ±gn and application3.1. Mechanical DesignThe panels ‘ support construction was designed with two grades of freedom in order to change the disposition and orientation. Besides, the construct of the panel ‘s support every bit good as the system that allows this support to go around around the two axes was developed. The tracker is composed of a fixed base which is straight on the land, holding a mechanism that connects the base to the back uping construction of the panels. This mechanism consists of two parts, which have a grade of freedom ( from each other ) in two axes. For altering the disposition of the construction, extra linear actuator is mounted to the solar tracker control system. Linear actuators are highly precise by design, particularly when compared to pneumatic and hydraulic solutions. Screw based mechanical additive actuators allow to progress or withdraw the motivation rod by highly little increases, which is required for the exact placement of solar tracker. Electric additive actuator consumes highly low electricity and are available in 12 Volts d.c. it can be powered by the solar panel itself supported by a battery. Linear actuators can be remarkably little, particularly when sing the scope of gesture that is required for traveling the Sun tracker. Photograph of the mechanical construction is shown in Fig. 3. Fig. – Mechanical construction of the Sun tracker.3.2. Hardware DesignThe hardware design combines the embedded microcontroller with two DC motor drivers, rotational DC motor, DC motor controlled additive actuator, solar rotary motion mechanism, GPS, pyranometer, wind gauge, tilt switches and MEMBS based inclinometer. A general block diagram of the control system is shown in Fig. 4. Global placement system ( GPS ) is connected to the microcontroller via a standard consecutive RS-232 port. GPS sends to the microcontroller sentences, that contains a twine of characters, continuously. These sentences chiefly include longitude, latitude, height, day of the month and clip for location where GPS is placed. Since microcontroller has the existent clip clock circuitry, it is moderately accurate over short periods, but it needs standardization sporadically. As a consequence, the GPS clock signal is used to update the microcontroller ‘s internal clip sporadically and therefore effects of the long term mistakes are eliminated. As portion of the attempt to better solar tracker dependability and better understanding public presentation, a pyranometer is being added to solar tracker. This pyranometer allows the informations acquisition system to mensurate exactly the irradiance witnessed by the PV faculties on that tracker, and therefore better supervise the impact of the tracking algorithm on the energy end product of the system. Solar tracker steps tilt angle with potentiometer that has long-run dependability job. A higher dependability option is a solid-state inclinometer. It has three chief advantages ; inherently higher dependability, higher declaration less than 0.1 & A ; deg ; , direct measuring of angle. In this undertaking, micro electromechanical systems based on electronic inclinometer ADXL345 is used [ 11 ] . Digital end product informations is formatted as 16-bit two ‘s complement and is accessible through either a SPI ( 3- or 4-wire ) or I2C digital interface The inclinometer would typically be mounted straight underneath a tracker ‘s plane, from where the disposition can be measured. Fig. – Sun Tracker control system block diagram. The solar tracker is fitted with bound switches to guarantee robust operation. A micro roller switch mounted on the base of the solar tracker prevents multiple revolution completion of the AZ tracking phase. The solar aggregator besides includes two more bound switches on the zenith tracking phase to forestall over travel harm to the additive actuator mechanism. The initial reset balance usage tilt switches. The mechanism include four tilt switches ( E, West, south and north ) To protect tracker constituents from over air current velocity, system besides requires an wind gauge to mensurate wind velocity. Consequently, we need powerful and cost-efficient microcontroller to link all these parts and manage to track the Sun. It must hold two consecutive port, ( UART ) one for communicate computing machine the other 1 for GPS, two PWM signals for motor A and motor B, one I2C port for solid-state inclinometer, hardware counter input for wind gauge, parallel input for pyranometer, at least four digital inputs for tilt switches. In add-on, these characteristics we need package development tools for microcontroller. Sing the computation of the mentioned before, 32-Bit Stellaris microprocessor LM3S811 which is optimized for small-footprint embedded applications, fits best to the Sun tracker system. TI Stellaris LM3S811 microcontroller has a Reduced Instruction Set Coding ( RISC ) ARM nucleus, internal oscillators, timers, UART, USB, SPI, pull-up resistances, PWM, ADC, parallel comparator and watch-dog timers are some of the characteristics [ 10 ] .Software DesignThe developed Sun tracking algorithm enables high-precision finding of Sun angles and times for dawn, solar midday and sunset year-round. The flow chart of the algorithm is drawn in Fig. 5. The computation of the Sun angles with the Sun tracking algorithm package merely requires the specification of the day of the month, clip and exact longitude, latitude and lift of the location through a GPS system. Fig. – Flow chart of Sun tracking algorithm. The algorithm we developed for the control of the Sun tracker is composed of two chief subdivisions. In the input subdivision, the solar lift and AZ angles every bit good as dawn, sundown, solar midday and present solar times are calculated harmonizing to subdivision 2 and used as shared variables in other parts of the package. When the system starts, Stellaris foremost sets tracker to the place place and so takes GPS information to cipher the Sun set and rise times. The present solar clip is compared with the dawn and sunset times to find whether tracking should get down or halt. At dark clip, it waits following sample clip. Sample clip period may be defined harmonizing to proficient restraints. First restraint is GPS hot start clip that is 1 second for GPS. It can non be shorter than this value. The other restraint is the energy consumed by motor A and B during one tracking measure. We set sample clip to 2 minute during experimental work. The present solar clip between dawn and sun set clip ‘s Stellaris reads pyronometer value to look into if there is adequate solar radiation to bring forth power. Otherwise, Sun tracker stays at place place until solar radiation rise to lower bound of solar radiation. After solar radiation reaches the coveted value, so algorithm reads anemometer value to specify whether the Sun tracker can travel safely. If non, Sun tracker stays at place place at least during one sample clip. Otherwise, it starts tracking the Sun. In the end product subdivision of the algorithm, the package takes azimuth, ?A, and lift, ?e, angles from shared variables and converts them to drive gesture. The deliberate angles ?e, ?A, are so subtracted from the old place values. Harmonizing to the obtained angle difference and their marks, microcontroller sends PWM and way signals to the motor accountants. Motor A and motor B takes solar panel to the new place. Motor A can drive solar panels to turn in the horizontal plane in order to track the alterations in AZ angle ; its positive place is westbound. Similarly, motor B can drive solar panels to turn in the manner of fliping so as to track the alterations of solar lift angle ; its positive way is downward. At the terminal of tracking, the place of mechanisms demands to be defined. The electronic inclinometer ADXL345 sends x, Y, omega axis values to the Stellaris. This digital axis values are converted to angles by the microcontroller. By comparing the mensural angles with deliberate angles, the two motors take different motions to complete come up to the coveted place of the solar panel. Finally, when this twenty-four hours is over, the system backs to the place place to wait for the following twenty-four hours.ResultS and dA ±scussA ±onSun tracker was tested both in the research lab and out-of-doorss utilizing SM-55 solar panel [ 12 ] . During the out-of-door trial, the Sun tracking s ystem was moved to outside of a edifice so that we could compare the consequences between fixed place and two-axis Sun tracking systems. During a 24-hour test period, the two-axis solar tracker was required to run for about 2 proceedingss every hr to keep proper alliance with the Sun. Fig. – Outdoor trial consequences of sun tracker. During the trial procedure, solar panel charged to the battery, and solar panel current and electromotive force values were measured and stored every minute utilizing a information lumberman. End of the twenty-four hours, the solar panel, charged the battery up to 408.2 Watt-hour energy for about 11 hours. The recorded information on the twenty-four hours 5.5.2012 proved that the two-axis solar tracking PV panel produced more energy than the fixed 1 with about 40.7 % .ConclusA ±onIn this survey, a cost effectual two-axis Sun tracker has been developed. The ARM Cortex-M3 nucleus microprocessor successfully calculated the tilt angle of the solar panel in order to look into the accurate Sun lift angle. The placement technique, which has been investigated by the DC motor and additive actuator, reduced the mistake in turn uping the lift AZ angles to 0.1 & A ; deg ; . The proposed tracker has increased the energy collected by 40.7 % .

underage drinking Essays

underage drinking Essays underage drinking Essay underage drinking Essay E. Donahue Matt W. English 101 9/24/2013 Am I an Adult Yet? Some would argue that the drinking age shouldnt be lowered because of three very real risks, drunk driving, alcohol poisoning, and violent or destructive behavior. Drunk driving is a stain on our civilization. An average of 17,000 individuals die each year in drunk driving related deaths. It seems quite plausible that were alcohol to be legalized for those under the age of 18, the 15. 1% of 18 to 20 year olds who drink before getting behind the wheel would rise significantly. A brief stroll through nearly very campus in America reveals keg parties, crowded bars filled with fake ID minors, and rowdy sorority and fraternity functions. When you consider that adolescence is a time of great impulsivity and tendency for violence and destructive behavior, the dangers of legalizing alcohol for minors become that much more real. The main problem with the United States having a drinking age of 21 is that the age of majority is 18 (19 in Alabama and Nebraska), as it is throughout most of the world. That is the age when a person assumes the legal rights and responsibilities of an adult. Consequently, anyone in the United States who has reached the age of 18 is legally eligible to vote, run for office, enter contracts, marry, engage in consensual sex with other adults, adopt children, Join the military, be subject to the draft, purchase tobacco, and purchase pornography; that is, everything under the sun except buy a beer. Just over half the 15-year-old boys reported drinking alcohol in the previous week, with an average intake of 14.5 units. This compared with 46% of 15- year-old girls drinking an average of 11.2 units. In their first year of secondary school, 5% of boys and girls said they had drunk alcohol in the previous week. This rose to 18% of boys and 19% of girls by the age of 13. Among the drinkers aged 11-13, the average consumption was 8.3 units by the boys and 4.6 by the girls. The findings came from a survey of more than 7,000 pupils at 225 schools in England, carried out by the National Centre for Social Research and National Foundation for Educational Research in autumn last year. A full report will be published later this year. Previous surveys showed the proportion of 11 to 15-year- olds drinking alcohol in the previous week rose from 20% in 1998 to 27% in 1996 before falling to 21% in 1998 and 1999. Last year the proportion rose again to 24%. A spokesman for the charity Alcohol Concern said: It reinforces our belief that there needs to be much more emphasis on education and prevention in terms of making people more aware of the dangers of alcohol misuse. Young bodies are just not made for drinking alcohol. The survey showed the proportion of 11 to 15-year-olds using drugs in the last month rose from 7% in 1998 to 9% in 2000. The proportion using drugs at least once during the previous year rose from 11% to 14% over the same period. At the age of 11, 3% had tried drugs over the last year mostly cannabis. Older children were more likely to have experimented, with 28% of 15-year-olds saying they had taken cannabis in the previous 12 months, 9% stimulants such as cocaine, ecstasy or amphetamines, and 1% heroin. Among 11 to 15-year-olds, 10% said they were regular smokers (at least one cigarette a week). Last year anti-smoking campaigners welcomed figures showing the proportion of young smokers fell from 13% in 1996 to 9% in 1999. The most prolific smokers were 15-year-old girls, with 26% owning up to being regular smokers compared with 25% in 1999. Sir Paul Nurse, director general of Imperial Cancer Research Fund, said the figures showed why the government was wrong to postpone legislation to ban tobacco advertising. Young peoples smoking rates have been falling since 1996 and it would be tragic if we were seeing the beginning of a reversal in this trend The government is sitting on a bill that would save thousands of lives each year and would protect precisely this group of vulnerable people. A spokeswoman for the Department of Health said: We remain on course to meet our tar get of reducing smoking among the 11-15 age group to 11% by 2005 and 9% or less by 2010. We are concerned by the small increase in the percentage of young people who have used drugs in the last month and in the last year. However we are encouraged that the percentage of pupils reporting use of heroin and cocaine -the drugs which cause the greatest harm has remained low. On the rise in teenage drinking, she said: We look forward to the publication of the main report which will provide more detailed information on the young peoples drinking behaviour, and we will continue to monitor trends. A separate report on teenage drinking published by the Scottish executive found a rise in drinking among 12 to15-year-olds in the period 1998-2000. à ¯Ã‚ ¿Ã‚ ½ Thirty-nine young people died in 1999 after sniffing butane lighter refills, according to a report on UK deaths from volatile substance abuse by St Georges hospital medical school in London. Deaths due to gases, aerosols, glues and similar substances declined steadily over the past 10 years, but still account for one in 60 deaths among teenagers between 15 and 19. Is Your Teenager Using? The changes that youve noticed in your teenager may just be signs of growing up, but some can be dead giveaways for alcohol and drug use. Continued alcohol and drug use will affect your childs behaviour, attitudes and even choice of friends. If your child is using alcohol and drugs, its a good bet he (or she) is doing everything possible to keep that activity hidden. The last thing he wants is for his parents to give him a hassle about his newly found entertainment. But continued alcohol and drug use will affect your childs behaviour, attitudes and even choice of friends. Here are some signs to look for, if you think that your child may be using: Mood Swings Most teenagers go through normal mood swings. But look for extreme changes one minute happy and giddy followed by withdrawal, depression, or fits of anger or rage. New Friends? If you child is using, chances are he will begin hanging out with others with similar interests. Has your child suddenly turned away from his old friends? Is he hanging out with an older (driving age) group or with those that you suspect are using drugs? Bad Performance in School Has your childs attitude toward school suddenly changed? Have his grades gone from pretty good to very bad? Has he been skipping classes or school altogether? Physical Health Have you noticed a change in appetite? Does your child suddenly have digestive problems. Has he been treated for medical conditions that might be attributed to substance abuse, like gastritis or ulcers? Have his sleeping patterns changed? Evidence Have you notice any alcoholic beverages missing? How about the medicine cabinet? Anything missing there? Have you found unexplained empty containers around the house or grounds? Any paraphernalia? Has he suddenly started smoking cigarettes openly? Attitude Has your child developed a negative attitude against anti-drug or anti-alcohol programs, materials or literature? Has he been in trouble with the law for any reason? Has he developed a bad attitude toward any authority figures in his life? Have you found that your child has generally become dishonest about things? Little Things Have you noticed a change in hairstyle or fashion choices? Is he suddenly using breath mints consistently? Has he lost interest in tidiness in his room or does he pay less attention to personal hygiene? Overt Signals Has anyone ever told you your child is drinking or using drugs? Do you know that he has experimented. Has he suddenly developed the need for additional money, for vague or unexplained reasons? Have you ever seen him stagger? Or have you noticed any slurred speech? Changes in the pupils of his eyes, or redness or bloodshot eyes? Conclusion: A Better Way Instead of stigmatizing alcohol and trying to scare people into abstinence, we need to recognize that it is not alcohol itself but rather the abuse of alcohol that is the problem. Teaching about responsible use does not require student consumption of alcohol any more than teaching them world geography requires them to visit Nepal, or teaching them civics requires that they run for office or vote in presidential elections. We teach students civics to prepare them for the day when they can vote and assume other civic responsibilities if they choose to do so. Because either drinking in moderation or abstaining should both be equally acceptable options for adults, we must prepare students for either choice. To do otherwise is both irresponsible and ineffective, if not counterproductive. A recent study of the effectiveness of alcohol education programs compared those that present an abstinence-only message with those that present drinking in moderation as an option. It is clear that programs accepting responsible use are demonstrably more successful than are no-use-only programs.29 In spite of noble intentions and the expenditure of massive amounts of time, energy, and money the best evidence shows that our current abstinence-oriented alcohol education is ineffective. Simply doing more of what is not working will not lead to success; it is essential that we re-think our approach to the problem. Our youth are too important and the stakes are too high to so otherwise.

Free Essays on Austalias Immigration Policy

Australia's immigration policy is disastrous, proceeding as if there is no balance of payment problem, no foreign debt and no geographical or environmental constraints to population growth. Continued immigration will finally and irreversibly alter the natural and urban environment, economic viability and attitudes and culture of our nation. The people have been consulted on, or given their consent to, the interwoven policies of immigration and multiculturalism. It is now time for Australians to demand their democratic rights, reclaim their sovereignty and demand a say in the future of their nation. Australians Against Further Immigration want immigration drastically reduced to zero net. That is, out immigration numbers should merely replace those permanently leaving Australia each year - historically running between 20,000 and 30,000. At this policy of institutionalised, publicly funded multiculturalism should be scrapped. We are a non-racist organisation and attempts to convert the debate to one of race and emotion is a deliberate ploy to silence critics and avoid the real issues. We believe in freedom of speech. The philosopher Spinoza said, â€Å"In a free state every man can think what he wants and say what he thinks†. This should apply here to debates on immigration. We care about Australia and want to pass our heritage to our children and their children. We want to preserve our Australian identity. We stress that migrants already in Australia are welcome, what we are against is further immigration and the effect this in now having on social harmony. Our opposition is the pro-immigration lobby comprised of big business including the media, the ethnic lobby, churches, misguided humanitarians and both sides of politics. It is our own successive governments inflicting these policies on us and they, not the individual migrant, should bear the blame. We are concerned about the effect of ... Free Essays on Austalia's Immigration Policy Free Essays on Austalia's Immigration Policy Australia's immigration policy is disastrous, proceeding as if there is no balance of payment problem, no foreign debt and no geographical or environmental constraints to population growth. Continued immigration will finally and irreversibly alter the natural and urban environment, economic viability and attitudes and culture of our nation. The people have been consulted on, or given their consent to, the interwoven policies of immigration and multiculturalism. It is now time for Australians to demand their democratic rights, reclaim their sovereignty and demand a say in the future of their nation. Australians Against Further Immigration want immigration drastically reduced to zero net. That is, out immigration numbers should merely replace those permanently leaving Australia each year - historically running between 20,000 and 30,000. At this policy of institutionalised, publicly funded multiculturalism should be scrapped. We are a non-racist organisation and attempts to convert the debate to one of race and emotion is a deliberate ploy to silence critics and avoid the real issues. We believe in freedom of speech. The philosopher Spinoza said, â€Å"In a free state every man can think what he wants and say what he thinks†. This should apply here to debates on immigration. We care about Australia and want to pass our heritage to our children and their children. We want to preserve our Australian identity. We stress that migrants already in Australia are welcome, what we are against is further immigration and the effect this in now having on social harmony. Our opposition is the pro-immigration lobby comprised of big business including the media, the ethnic lobby, churches, misguided humanitarians and both sides of politics. It is our own successive governments inflicting these policies on us and they, not the individual migrant, should bear the blame. We are concerned about the effect of ...

Return on Investment for Your Time

Return on Investment for Your Time I touched on this subject in another post earlier this year, but I want to hammer it here. You are a writer. Your time is torn between the keyboard and marketing yourself (not to mention your private life and whatever job is subsidizing your endeavors). Your time is money. Its ALWAYS money, so dont throw it away. So when you decide to get involved in any writing activity, you must be able to measure the return on investment. Whats it worth in terms of your annual income for you to get involved? Conferences Dont go without a mission. What will you bring home from this event? While youll make friends the purpose isnt social. Its business. What will you achieve here that makes it worth your money AND the time away from your writing? Is the conference too large for your taste? Do they provide answers to exact topics you need? Do you need an agent and do they provide one that fits your genre? Measure a conference from all angles before attending. Signings Will you be the only person at a poorly advertised event, selling three books in as many hours? Or is it well-advertised with expectations of good sales? Yes, it is controllable and predictable. If it isnt, someone isnt doing their job. Mass signings Theres a trend to gather as many authors as possible together and meet in some venue to sign. However, if there are as many authors as attendees, or even 30 authors and 200 attendees, will you sell enough books in that day (or two) that will justify the travel and cost? What are the genres represented? How much advertising has been done? How many books have sold at these events in the past? How much percentage of your sales do you have to pay for the privilege? Book Fairs These little events can net huge rewards, or reap nothing. Know the event. Keep it as local as possible, both diminishing expense and capitalizing on the homegrown author reputation. Classes What are the teachers credentials? What do previous students say about the class? How much is the fee and how much time will you have to invest? How will you specifically implement this class into your writing plans? Webinars What are the presenters credentials? What are they selling? Does the program fit into your schedule AND your writing plan? Be wary of impulse-to-buy deals. Book Clubs Believe it or not, these little gems often pay for themselves. Not only does the club choose your book (meaning sales to the members), but they may pay you an honorarium to attend. And since the members already read one of your books, you have the chance to promote your others in personand offer to autograph them while youre there! Ask the club what they expect to learn more. They love to talk about themselves. Advertising Know before purchasing advertising how others have fared. Are you better off paying for advertising or writing twenty guest blog posts and stealing your writing time? What is the net profit for each of your books so you can determine how many books you must sell to justify the expense. Dont play if you dont know. To know how to calculate your investment, to determine whether to participate or not, you do your homework, and thats where most writers fall short. They listen to whats said on Facebook or in chatrooms and dont actually research the events/activities themselves, thinking they dont have the time. There is no excuse for not doing your homework. Not with all the information readily at your fingertips as you sit so comfortably at your desk. To say you can or cannot afford to do something should mean you have the knowledge of why, to include the pros and cons of how it accurately can aid or inhibit your career . . . or pocketbook. –Hope Clark TWITTER Â  http://twitter.com/hopeclark AUTHOR SITE chopeclark.com FACEBOOK Â  facebook.com/chopeclark GOODREADS Â  goodreads.com/hopeclark BOOKBUB Â  https://www.bookbub.com/authors/c-hope-clark

How did major discoveries in physics change the course of chemistry Term Paper

How did major discoveries in physics change the course of chemistry and interpretations of the discoveries - Term Paper Example This led to more complex applications that have improved humanity’s standards of living besides drawing a clear distinction between man and other animals, which the latter do not possess such kind of heightened intellectual capacity. Some of the early major physics discoveries or developments that have greatly impacted humanity’s life comprise those of Isaac Newton and Faraday whose respective theories’ contributions are still evident today (Heidarzadeh, 2008). This is especially in the current world where some technological inventions trace their roots from laws these scholars brought forward, though due to certain sophistications unveiled by incumbent scientists appear as if they are completely new. Theme/Thesis: Therefore, this paper will critically highlight diverse major scientific historical discoveries with much emphasis on electromagnetism and thermodynamics unveiled by early inventors and controversies that characterize them even though their respective contributions led to major breakthroughs evident today (Heidarzadeh, 2008). ... They have either cold and hot or wet and dry characteristics (Woody, 2008). Based on this expounding, Aristotle without doubt assumed all other things irrespective of their minor compositions each represent a unique homogenous substance though later he came up with a fifth category calling it â€Å"aether† (matter that occupies universe). Based on the aether hypothesis, this category comprised of â€Å"incorruptible† things whose existence is eternal besides being devoid of clear sign of aging (Heidarzadeh, 2008). This based on Aristotle is untrue because he contended the four matters are basic compounds of an individual except the fifth category (Woody, 2008). The four elements during creation were in proportion with each person’s magnitude though there is no evidence of unit quantities meant for given sizes of human beings. The most intriguing aspect concerning his theory was how he contended the four elements were unique or pure but did not exist anywhere secl uded or being on their own except in combined form (Woody, 2008). After the invention of this theory for approximately 2000 years, it found numerous applications in both philosophy and other scientific related fields like physics as well as chemistry (Woody, 2008). Earth despite the scholar citing is a unique element comprises of numerous aspects including rocks and minerals similar to H2O, which based on the current scientific knowledge has elements of Hydrogen and water (Heidarzadeh, 2008). This is completely confusing because based on the current chemistry; it states an element is any substance having a homogenous material whose alterations is only by subjecting it to a chemical process or physical disturbance. This is either to gain or lose certain amount of material

Contract Law Essay Example | Topics and Well Written Essays - 2500 words - 1

Contract Law - Essay Example The customer handling is a tactic that helps you in increasing the retention rates of the customers. The customer loyalty with your company can enhance your sales and helps in increasing your yearly turnover. These customer complaints when handle properly inform the organization what actually the customers wants in product, their needs and what changes they further want in your product or service. The importance of these complaints, requirements and ideas from the customers are very important due to the reason that the company actually serving these people. So these complaints are actually the customer voice that meant a lot for the organization. The after sale service of a company is important because customers may feel some problems while the usage of the product and dealing with problems may help in gaining their loyalty. These customers compliant handling is not only important to the sales and marketing department of the product launching compnay but also important for the servic e providing companies. The purpose of this article is to deals in importance of complaint handling within the retail FS UK market. We will consider that what problems actually the customer were facing and how the problem solving enhances their service market. In 2003 the life insurance company which was based in financial market of UK ... ancial market of UK paid the fine of 675,000 pounds due to their mortgage endowment complaints which were not handled properly by their service department. Similarly in 2004, the same Life Insurance Company paid the fine of 725,000 due to their bad handling of mortgage endowment complaints, which they were facing the last year. The only reason was that the company was unable to provide better services before and after the sale of their product and services. In 2005, High Street Bank paid the fine of 800,000 pounds due to their worst handling of customer complaints. In 2006, again the same Life Insurance Company paid the fine of 750,000. In 2007, IFA paid 330,000 of pounds as fine against worst compliant handling of their customers. These all fines which are paid by the companies mention above are the only reason of bad customer services they provide to the customers. These companies then need to take a deep look inside their customer relation services in order to know that what the r oot cause of the problem is. Where the main problem lies We try to search and find some issues which these companies lack and these were The financial service companies were fail to give efficient customer services as customer advisory department were failed to advise the customer the which service suit them most. The importance to the customer within the company wasn't matter when they first step in the company. The companies were unable to investigate deeply in order to know that where the company lacks or performing badly and the only reason was that they lack a sufficient communication level. The companies were unable to launch such systems and strategies that can improve the customer relations with their employee's and the reason was this that they actually don't know that where the

Experience on Placement in Social Services in Mauritius Essay

Experience on Placement in Social Services in Mauritius - Essay Example On the second week I attended a seminar hosted by Befrienders organisation which is a member of MACOSS, Befrienders was founded by Ibhoo Mansoor in 1995. Its main aim is to prevent suicide which amounts to 300 per year in Mauritius, it operates 48 countries with 400 hundred centres and 60,000 trained voluntary workers. Its activities involve organising talks and public awareness programs. The talk involved the emphasising of the high suicide rate in Mauritius which amounts to 300 deaths a year; the majority of persons involved are persons between the ages of 13 years to 35 years. Suicides is the act of wilfully ending ones life. Some of the causes of suicide include depression, mental illness, hopelessness, poverty and hardship, religious reasons as in the case of suicide bombing and crime where criminals commit suicide before they are caught up with. Suicide however can be prevented through the introduction of crisis intervention centres, restriction of access to common methods of suicide, treatment of depression, reduction of alcohol and substance use and the education based interventions to boost self esteem. On my third week I went to work with the EDYCS group, it is a... (http://www.who.int/mental_health/en/) On my third week I went to work with the EDYCS group, it is a non governmental organisation which was founded in 1997, its main objective is to improve the health and quality of life of people who surfer from epilepsy. I visited the epilepsy health service centre which helps people learn more about epilepsy, visit people suffering from the disease, organising seminars and conferences and fund the people who need urgently need health attention. Epilepsy is a chronic neurological condition which is characterized by recurring epileptic seizers. This disease can not be cured but can be controlled. It is caused by parasitic infections, head injury, stroke and complications in pregnant women. Treatment is through medication, special diets and implantation of the vagus nerve which reduce the frequency of seizure. On the fourth week I went to a nursing home with mentally ill people, it was set aside for the elderly. My activities included helping out in giving medication to the sick, undertaking role calls, helping in feeding, provision of guidance and counselling and helping out in the cleaning process which included laundry. On the fifth week I went to the friends in hope organisation, whose purpose is to provide care and support to person's mental illness. This organisation was founded in 1997 by relatives of people suffering from psychotic disorders. The main aims of this organisation is to provide public awareness on psychotic disorders, rehabilitation of patients, and improvement of administration of persons suffering from these disorders. Through my experience with these organisations I have gained a lot in the provision of human services to various needy people