Sunday, May 24, 2020

Renewable Energy On The Uav Essay - 967 Words

What the renewable energy is? Renewable energy is energy or power that is created from natural resources such as wind power, oceanic waves, and the sun. These resources can be used to replace other energy generators such as electricity and gasoline. The aim: On this project aiming is to use renewable energy on the UAV , therefore, it will be able to fly for longer distance without needs of landing for recharging or filled with fuel. In addition to that, solar panels are the reasonable solution for that which we can categorize these panels into: Polycrystalline Monocrystalline Hybrid All-Black These types of panels have different standard and verity of reducing energy, also they are hard panels and heavy which could produce a great amount of energy and mostly are used for house usages .However,’’ Ececom Flexible panels’’ give us this option to have a very lighter weight and great energy to be used on the UAV. Table 1 shows the details of these panels: Peak Power Pmax 130(Wp) Open-circuit voltage. Voc 20,32(V) Short-circuit current lsc 8,61(A) Voltage at Pmax. Vmp 16,89(V) Current at Pmax. Lmp 8,1 Number of cells 32 Size (b x h) 1355 x 660(mm) Thickness ( 1,7 (mm) Weight 2,2(kg) Efficiency Mono 18% Terminal ends Cable with universal MC4 plugs Max system voltage 600 V Moreover, our aim is to have longer time using renewable energy and storage the energy into the UAV so it does not need to landing after a period of time and only in emergency requires toShow MoreRelatedRenewable Energy On The Uav967 Words   |  4 PagesWhat the renewable energy is? Renewable energy is energy or power that is created from natural resources such as wind power, oceanic waves, and the sun. These resources can be used to replace other energy generators such as electricity and gasoline. The aim: On this project aiming is to use renewable energy on the UAV , therefore, it will be able to fly for longer distance without needs of landing for recharging or filled with fuel. In addition to that, solar panels are the reasonable solution forRead MoreBenefits Of Military Technology On Technology1688 Words   |  7 Pagesdiscuss more on the traces of the technology in other areas, but with less desirable outcomes. In addition, we will talk briefly about the instances where civilian technologies were used by the military. Nuclear energy has the potential to replace fossil fuel as the main source of energy, but it is also one of the most debated topic of our time. After the World Wars have ended, we saw how nuclear technology flourished outside of military technology, but at the same time, faced with many concernsRead MoreVaining Comparison And Opportunity9989 Words   |  40 Pagesk-connected if any sensor in the system is k-direct-neighbor (i.e., the sensor can communicate with its neighbors directly) perimeter-covered. Then, a sensor-sleeping scheduling protocol, that combining with a transmission power control protocol to reduce energy consumption, is proposed. In [71], the authors developed a maximum connected load-balancing cover tree (MCLCT) algorithm to achieve full coverage as well as base station-connectivity of each sensing node by dynamically forming load-balanced routingRead MoreStreet Light16880 Words   |  68 PagesINDEX |S.NO |TITLE |PAGE NO | |1 |Introduction |1 | |2 |Solar Energy |4 | |3 |Photovoltaics |24 | |4 |Solar Cell |28 | |5 |Solar Roadway |51 | |6 |Component description Read MoreAnnual Report Rolls-Royce78484 Words   |  314 Pageshighlights 02 Chairman’s statement 04 Chief Executive’s review 08 Our consistent strategy 20 Market outlook 22 Key performance indicators 26 Principal risks and uncertainties 28 Review of operations 28 civil aerospace 30 defence aerospace 32 marine 34 energy 36 engineering and technology 38 operations 40 Services 42 Sustainability 48 Finance Director’s review goVernAnce 56 56 58 58 59 62 63 63 64 67 78 80 81 81 Chairman’s introduction Board of directors The Group Executive The International Advisory

Wednesday, May 13, 2020

Mathematics Statistics, Problem Solving

Mathematics Statistics, Problem Solving 1. The Length of a certain species of fish has a normal distribution with mean 50 mm and standard deviation 4.5 mm. A random sample of four fish is drawn and their length X1, X2, X3, and X4, are observed. Calculate the probability that. (3 pts) All four fish have lengths between 51 and 60 mm (3 pts) The mean length of the four fish is between 51 and 60mm (3 pts) Explain why the answer to part A would always be bigger than answer to part b. Answer: a. P (51 X 60) = ( 51-50/4.5) X ( 60 – 50/4.5) = 0.22 X 2.22 = 0.986791 0.587064 = 0.399727 b. Mean of Sampling Distribution = 50 mm Standard Deviation of the Sample = 4.5/sqrt(4) = 4.5/2 = 2.25 t (51) = 51 – 50/ (2.25) = 1 / 2.25 = 0.44 t (60) = 60 – 50/ (2.25) = 4.44 Df = 4 -1 =3 P (51 t 60) = 0.9894 – 0.6551 =0.3343 c. The answer to part A will always be bigger because it is taken from a larger population, whereas the part b is taken from sample, and due to less number of observations, the probability will be less. 2. (3pts) Using computer simulation, several independent random samples each of size n were drawn from a population that has a normal distribution with mean 50 and a standard deviation 9. This means of the samples were then calculated and it was found that 68%of the sample means lies between 48.5 and 51.5. Find the sample size n. Assume that n is large enough for the central limit theorem to hold. Answer: 48.5 – 50 /( 9/sqrtN) X (51.5 -50)/ 9 sqrtN) = 0.68 = 1.5/(9/sqrtN) X 1.5/(SqrtN) = 0.68 = 1.5/(9/sqrtN) = 0.408 = (1.5* SqrtN) = .408 = SqrtN = 0.408/1.5 Sqrt N = 0.272 N = .073984 3. A random variable x has a binomial distribution with n – 100 and p=.45. Using the Normal approximately to the binomial with continuity correction, calculate the following probabilities a. P(X=50) b. P(x60) c. P(40X50) a. 0.048151971 b. 0.000938232 c. 0.682367 4. Recall the population of Ellipticus (copy attached). Using stat crunch, drawindependent random samples of 5 non-mutants and 5 mutants from this population. Then measure the lengths (to the nearest millimeter) of Y1, Y2, Y3, Y4, and Y5 be the lengths of the mutants. Using the data 3 points each A. Obtain a 95 confidence interval for the population mean length ÃŽ ¼Nof non mutants B. Obtain a 95 confidence interval for the population means length ÃŽ ¼M of mutants C. Obtain a 95 confidence interval for the difference in population mean length ÃŽ ¼N-ÃŽ ¼Mbetween non-mutants and mutants 5. The manufacturer of a new prostate cancer drug claims that it has a least 65% cure rate. You are the statistician assigned to validate the claim with data. So you administered the drug on a random sample of 30 patients and proceed with the following test: Let p be the unknown cure rate and let the random variable x be the number of cures among the 30 patients.note that x has a binomial distribution with n-30 and event probablity p. Set up the null hypotheses ho: p0.65 Decision rule: reject ho if the observed number of cures x25 3 point each A. Using statcrunch calculate y(p) for p= .1,.2,.3,.4,.5,.6,.7,.8,.9 B. Graph y(p) versus p using excel (line graph) C. Dicuss briefly how good you this test is based on they(p) above. Answer: The the line is straight sloped line, it shows the there is a constant increase in success with increase in the p or sample D. Construct a test x a for the null hypothesis ho: p=0.65 that will allow you to 10% chance of making a type 1 error (i.e. rejecting a true h0) with maximum probability of rejecting ho y (0.8) when in fact the true state of nature is ha: p=0.8 Test will be based on the changes, with the rejection region of 10% and same the chance of making type I error. The test will consist the sample, with the probability of success change to 0.85

Wednesday, May 6, 2020

Essay Topics for Grade 7 Students - the Story

Essay Topics for Grade 7 Students - the Story The Upside to Essay Topics for Grade 7 Students Imagine you're a superhero. So, it's a remarkable foundation for assorted epic stories! Look through actual topics that have an opportunity to hook your readers' interest. Therefore, you might take an effortless topic and surprise everyone with your wide method of thinking and your individual values. Perhaps the most significant thing that you need to not forget is that you're expected to compose an essay instead of simply to describe something. The most significant thing you want to bear in mind when writing an opinion essay is that you want to express your opinion. Writing of the descriptive essay can be rather challenging. Put simply, the essay should say how you intend to get ready for class. Don't panic if you are not able to get your descriptive essay right. Writing a great essay might be a bit of cake if you're feeling inspired. Be attentive to the size it must be and begin writing the narrative essay outline. There are a few great topics to think about when selecting topic for your argumentative essay. Though, there are specific patterns that you are supposed to follow when you compose a descriptive essay. Therefore, below are some basic strategies to assist you in writing of good descriptive essay. Be certain, you'll get the result you expect! The options are endless. If nobody knows the way to write or read cursive handwriting, the shape of communication is going to be lost, some believe. Some students utilize the very first idea that arrives in their head and work on it, but the outcome isn't successful. Essay Topics for Grade 7 Students Help! How you would like your peers to take care of each other 31. Students will discover that it's simpler to write about topics they're interested in, and it'll make the researching process much simpler. Many students have a tendency to encounter the writin g issues due to the shortage of appropriate comprehension. You are able to have a look at the points from their writings and finalize the topic you would like to write. When you have the topic, answer the question and after that support your answer with three or more explanations for why you believe it. Following are various sorts of essay topics for students that are categorized in many sections so you can easily chose the topic depending on your need and requirement. English language classes usually demand a lot of writing. Pregnant couples should get parenting lessons. It is irrelevant if you teach English online or whether you're a classroom teacher, we wish to understand about your teaching styles. Use transition words to get your text coherent and simple to read. Writing about nuclear weapons is always a superb idea. The absolute most beautiful painting you've seen 8. Essay Topics for Grade 7 Students at a Glance Even if books are somewhat more informative. Writing practice should not be boring! For many students, seventh grade is an amazingly significant transitional calendar year. School tests aren't powerful. Students in high school and college are anticipated to demonstrate a high degree of creativity and to go deeper in the topic that they've chosen. Every American should learn how to speak English. He should learn to speak Spanish. Life is much better than it was 50 decades ago. Women ought to be fined whenever they scream. Spam mail needs to be outlawed. An excessive amount of money isn't a good thing. The absolute most peaceful spot for you 84. There was an entire mess within it.

Tuesday, May 5, 2020

Significance of the Exclusionary Rule-Free-Samples for Students

Question: Discuss about the significance of the Exclusionary rule that has been developed to safeguard the protection guaranteed by the Fourth Amendment in the US Constitution. Answer: Introduction The exclusionary rule is considered as a legal rule that is used in the US Constitution, which states that any evidence seized by the police illegally against the defendant, such evidence shall not be submitted during the criminal trials. Evidence is permitted to be presented before the court during trials of the criminals. The evidence that are relevant are only admissible in the court, which implies that the evidence must be such that it establishes the existence of any material fact related to the case. The exclusionary rule has been sanctioned to enforce the right of the citizens to be secure in their homes against the any illegitimate governmental interference (Kerr, 2016). However, the rule has been restricting the application of this rule only to evidences that have been obtained illegally by the police. This rule has been considered a deterrent to police misconduct. The Exclusionary Rule The exclusionary rule prevents the US government from submitting any evidence in trial that has been obtained illegally in contravention of the Fourth Amendment. The Fourth Amendment ensures protection against illegal seizure and search. The doctrine of exclusionary rule used in the US courts has been sanctioned to deter police and other law enforcement agents from obtaining evidence unreasonably and illegally (Cole, 2015). This rule has been sanctioned in protection of the right of the people to be secured in their homes and to be protected against illegal search and seizures. If an evidence is banned or forbidden from being submitted to the court, it implies that the evidence collected against the defendant cannot be used against him during his trial, provided such evidence has been collected illegally. Background of the Exclusionary Doctrine At Common law, the legitimacy of the method to collect evidence had no relevance with the admissibility of such evidence that is, the court was not concerned whether the evidence submitted was obtained legally or illegally neither it formed any issue with respect to the determination of the question. However, in 1886, the Supreme Court paved the way for the establishment of the exclusionary rule in Boyd v United States [1886] 116 US 616. In this case, the court held it is important to ensure that a liberal approach should be applied while interpreting the constitutional provisions pertaining to security of person and property (Cole, 2015). The liberal construction principle led to the way establishment of the exclusionary rule that was ultimately brought up in the landmark case of Weeks v United States [1914] 232 US 383. In this landmark case, a US Marshall seized evidence from the home of the defendant without any arrest or search warrant against Mr. Weeks. Moreover, such evidence was seized without the consent of Mr. Weeks, the defendant. The court held that if evidence is seized in this manner and used against the defendant, it should amount to a contravention of the protection guaranteed in the Fourth Amendment; therefore, such evidence shall have no value. The court further reasoned that the Fourth amendment subjects the Federal and US officials to restrictions with respect to the exercise of their authority and power. Hence, the Court established that the evidence obtained by the Federal agents in a manner that contravenes the Fourth Amendment rights should not be included in the criminal prosecution against the defendant. Further, in Mapp v Ohio [1961] 367 US 643, the Supreme Court held that the exclusionary rule is applicable to the states. Furthermore, the decision in Miranda v Arizona [1966] 384 U.S. 436 established that the exclusionary rule is applicable to self-incriminatory statements that have been obtained improperly, resulting in contravention of the Fifth Amendment. The Fourth Amendment and the Exclusion rule The Fourth Amendment under the US Constitution was enforced with the objective of ensuring security of every person in his or her respective homes. The underlying principle of this amendment is that each mans castle is his home and every man is safeguarded from arbitrary and illegal police arrests (Kerr, 2016). The Fourth Amendment ensures that no person is subjected to unreasonable seizures and searches of their respective properties by the US government. This Constitutional amendment is based on the law regarding stop-and-frisk, search warrants and any other forms of safety inspections, wiretaps etc. the Fourth Amendment is fundamental to privacy law and other aspects of criminal law. This legal provision stipulated under the Fourth Amendment aims at safeguarding the privacy right of the people by deterring unnecessary and illegal intrusion from the US Government. In other words, the Fourth Amendment does not ensure safety for search and seizures that the governmental officials carry out legally and on a valid legal ground. Therefore, in order to claim contravention of the Fourth Amendment, the court shall determine whether such intrusion has violated any of the rights of the claimant, where the claimant expected privacy and such intrusion has violated the privacy right. Significance of the Exclusionary rule The introduction of the exclusionary rule in the Fourth Amendment has been made to deter police misconduct and enables the courts to exclude admissibility of any incriminating evidence during trial provided the defendant establishes that the evidence was obtained in violation of a constitutional provision (Kerr, 2016). This doctrine permits the defendants to challenge the evidence obtained illegally by initiating a pre-trial motion in order to suppress the evidence. However, if the court permits the evidence to be submitted during trial and the jury votes in favor of conviction, the defendant is entitled to prefer an appeal to challenge the correctness of the decision taken by the court regarding denial of the motion to suppress. Although the Supreme Court had established in Lockhart v Nelson [1988] 488 USS 33 that the defendant is not barred from the retrial, however, if the defendant is convicted in the second trial and the evidence suppressed by the applying the exclusionary rule is crucial to the prosecution. The doctrine of Fruit of the Poisonous Tree This legal doctrine Fruit of the Poisonous tree states that an evidence obtained through illegal search, seizure, interrogation or arrest is not admissible before the court as the evidence is tainted due to the illegal method in which it has been obtained. In other words, this doctrine is considered as a companion to the exclusionary rule, as this doctrine not only excludes evidence from trial that has been obtained in contravention of the Constitution but it also excludes any other evidence that has been obtained through the illegal search or seizure (Kerr, 2016). For instance, police put a wiretap on a drug-dealers phone without obtaining any warrant for the same. Now, the suspect discloses that he has drugs hidden under a dumpster and the buyer picks it from the dumpster. The police finds the place and seize the drugs and such illegal phone calls shall not be admissible to the court which is signified as the poisonous tree and the drugs seized as the outcome of the illegal phone call shall not be admissible either as it is signified as the fruit of the poisonous tree. Exceptions to the Exclusionary Rule Although the rationale behind the establishment of the exclusionary rule is to deter the law enforcement officers from conducting illegal searches and seizures contravention of the Fourth amendment, thus, providing remedies to the defendants whose rights have been infringed. However, since this doctrine is a court made rule unlike an independent constitutional right, hence, courts have provided with exceptions to the application of this rule. The exceptions are enumerated as below: Good faith- if a police officer relies on search warrant and collect evidence but such search warrant turns out to be invalid, under such circumstances, the evidence shall not be excluded from being admissible (Kerr, 2016). This exception as established in the landmark case United States v Leon [1983] 104 S Ct. 3405 and in Arizona v Evans [1995] 514 US1. Further, in the case Illinois v Krull [1987], the court held that evidence is admissible if the officers rely on nay statute that has been later repealed. Furthermore, in Herring v US [2009], the Court found that the good faith exception should be applicable against the exclusionary rule when the police employees mistakenly failed to maintain warrant database records. Doctrine of Independent source- any evidence that has been excluded initially for being obtained illegally may be later admissible provided the same evidence has been obtained after lawful seizure or search. This exception was established in the case of Nix v Williams [1984] for the first time and then this rule has been interpreted in Murray v US [1988]. Doctrine of Attenuation under circumstances where the challenged evidence and the unconstitutional conduct is not directly related and attenuated, the evidence shall become admissible as was established in Utah v Strieff [2016] and Brown v Illinois [1975]. The court shall determine three essential factors to apply this exception: presence of interference, temporal proximity and purpose of official misconduct. Doctrine of Inevitable Discovery in Nix v Williams it was established that any evidence discovered illegally shall be admissible if it is clear that such evidence would otherwise have been discovered even if the investigations were carried out lawfully. Evidence admissible for Impeachment- In Harris v New York [1971], the Supreme Court established that this exception shall be used as truth-detecting factor to avert perjury but such evidence shall be admissible only for impeachment and not to establish guilt. Conclusion From the above discussion, it can be inferred that the exclusionary rule that has been developed to allow the defendant to suppress certain evidences that are admitted against them on the ground that such evidence has been collected through illegal means and violates their rights guaranteed under the Fourth Amendment. A motion to suppress evidence is a request that is made by the defendant before the court to exclude such evidences from the trial proceedings for the illegal manner it has been obtained by the law enforcement officials (Kerr, 2016). The exclusionary rule has been subjected to limited applications as this rule merely deters the police officers from using illegal means to collect evidence and use it against the defendant, violating the legal provision of the Fourth Amendment and the rights of such defendants. If any police officers or law enforcement officers do not have a search or seizure warrant against any person, the rule prohibits such officers to search or seize any property of such person rendering such search or seizure as well as the evidence obtained through such illegal procedures as invalid and unlawful. The rule though safeguards the rights guaranteed to the people by the Fourth amendment but not the extent that justice cannot be administered. Reference list Arizona v Evans [1995] 514 US1 Boyd v United States [1886] 116 US 616 Brown v Illinois. [1975] 422 U.S. 590 Cole, S. C. (2015). De-Clawing Katz: Emerging Technology and the Exclusionary Rule.SMU Sci. Tech. L. Rev.,18, 47. Harris v New York [1971]. 401 U.S. 222 Herring v US (2009) 555 U.S. 135 Illinois v Krull (1987) 480 U.S. 340, Kerr, O. S. (2016). The Effect of Legislation on Fourth Amendment Protection.Mich. L. Rev.,115, 1117. Lockhart v Nelson [1988] 488 USS 33 Mapp v Ohio 367 US 643 Miranda v Arizona [1966] 384 U.S. 436 Murray v US (1988) 487 U.S. 533 Nix v Williams (1984),467 U.S. 431 United States v Leon [1983] 104 S Ct. 3405 Utah v Strieff (2016) 579 U.S. ___, 136 S. Ct. 2056 Weeks v United States [1914] 232 US 383