Keyword Research for WordPress Why It Matters and How to Do It

Succeeding online is not easy. But its a lot easier if your content ranks highly in search engines like Google, right? But to accomplish that, you need to optimize your site. To do that, performing keyword research for WordPress is one of the best ways you can improve your content and get it in front of more readers.Performing keyword research for WordPress helps you with understanding your audience and comprehending the psychology behind peoples actions. In this article, we will talk about how to rank higher in Google results pages by doing keyword research correctly. Backlinks and site authority are also a must if you want to actually rank for your target keywords, but this should be only your next concern after youre done with the keyword planning.While there are certainly other search engines, most keyword research for WordPress focuses on Google because Google powers over 76% of all global desktop search traffic and over 94% of the mobile/tablet searches.Why do keyword research for WordPress?Well, here it depends on what you want to achieve with your site. One thing is clear: if you want to monetize it, you should consider SEO as the main driving force of web content. Especially if you want to sell products and services online or you simply want to grow a publishing platform.Why?81% of shoppers conduct online research before making big purchases.Today, Google handles more than 100 billion searches every month.There are around 60,000 Google searches every second.86% of consumers stated that using a search engine allowed them to learn something new or important that helped them increase their knowledge.60% of all organic clicks go to the top 3 organic search results.These stats definitely speak for themselves. So having an optimized page would help you rank higher and get more traffic no matter what kind of conversions youre seeking sales, downloads, email subscription, social shares, etc.Long story short, keyword research for WordPress helps you get ranked by Google, thus to exist online. As a bonus, you get to know your audience/customers better by learning their thinking. Also, by seeing and monitoring what people search for, you can understand their needs better and then adjust your services based on that.How to perform  keyword research for WordPressOne of the most popular  tools in this regard is Google Keyword Planner. If you guide it well, the tool will return the most searched keywords  by using many filters. And its totally free. Heres how:Sign up for Google AdWords to get startedThe first thing you need to do is to sign in to Google AdWords. If you dont have an account already, its very easy to create one. Before starting, you have to give the tool a few pieces of information about your products, the area you want to sell in, the language youre targeting, negative keywords, date range, price range etc.Once you get through that, choose Search for new keywords using a phrase, website or category and fill out the form.To get an overall look at the most searched phrases in your niche, you can just start with one simple keyword and then make refinements later on:Following the example above, these are the top searches for old books:As you can notice, Google Keyword Planner displays the competition for each entry, which indicates how many people have bid for that specific keyword in Google AdWords (not necessarily the competition for search engine optimization).The nice thing about this tool is that it doesnt display only entries containing the words you try to get keyword suggestions for, but also all the top related searches in the same field. That is, if you look for old books, the tool will also display vintage books, used books etc.Think about competition when performing keyword researchThe competition column indicates how  many people are targeting the keyword in their Google AdWords campaigns. So, the competition consists of the number of advertisers who use the keyword in their business ads. Of course, you may not want to use the keywords for an ad, but knowing their value, you can estimate their popularity and their conversion rate.Hint! The competition and the monthly searches are not the same thing. A keyword can have lots of searches and yet a low competition or vice versa. Lets take book as an example. Everybody will use this term, but its not very specific and very few people will ever convert by using the keyword book, without any additional information. Thats why fewer people will bid for book. Cheap book, instead, will always suggest that there are customers who intend to buy your books.Sometimes, youll even get a specific keyword with a large number of searches and low competition. Which could be to your benefit. Why? Because people seem to be interested in it and you dont have many opponents to compete against. So, at times, targeting a keyword with low competition will help you very much. This advice fits more publishers who just need page views and not thos e who seek conversions (sales). Usually, the keywords with the highest competition are the ones that convert the most.How to refine your keyword researchIn the sidebar placed to the left of the keywords list, you can make the desired adjustments and add some filters to make the search even more relevant:If youre selling only in your country, then youre not interested in what people from other countries search for. Therefore, dont forget to select the country and the language youre targeting. You can also select if you want to extend the search to other search engines.In Negative Keywords, you should add words that are not relevant to your product/service and might mislead your customers. If youre ranking for an irrelevant keyword, your conversion rate will drop down and the bounce rate will increase.In the date range, select the time intervals youre interested in (you might want to know only the searches made in the last month). In keyword filters, you have some options to improve t he results and you can also add new keywords you want to get ideas for.Other places to perform  keyword research for WordPressWhile the Google AdWords tool is a good starting place because its free, its lost some of its value because Google made the decision to only show a range of values in the  Avg. monthly searches column.If youd like a more exact number, as well as some assessment of how easy it is to rank your website for that keyword in Google, here are some other helpful tools:KWFinder free for up to 3 searches per dayMoz Keyword Explorer   free for up to 2 searches per dayHow and where to add keywords to your WordPress siteNow that you have the right keywords, whats the next step? Where should you add them or how can you use them to improve your SEO? Well, the keywords must be scattered through all your sites content, be it pages, blog posts, tagline, categories, headings, URLs etc. On each of these pages, its recommended to choose one focus keyword and add it multipl e times (stay within reason, though!).Google looks into every web corner in its attempt to localize and count the keywords a user searched for. As a rough  rule, the more it finds relevant keywords within your content, the better it understands what your site is about and will display it in the results page accordingly.How to add keywords to your site overallStart with adding your strongest keyword in your sites Title and Tagline (only if it fits; its not mandatory). You can do this by going to Settings → General.  If you have a rich menu, you can sneak the keyword as a category in Appearance → Menus, too:If your WordPress theme comes with a header/slider, you can add a related sentence there too. Just look into your themes settings and customize the header. Do the same if you have a sub-header. Furthermore, make sure the page headings contain keywords as well.Every image you add to your site should have descriptive alternative text. Dont leave those spaces empty b ecause youll miss one more opportunity to place your keywords on your WordPress site.How to add keywords to posts and pagesBeyond your main pages, youll also want to perform at least a little bit of keyword research for every single post that you write.Once you know the keywords that you want to optimize your post for, using  a WordPress SEO plugin  is a great way to help you optimize your post. Try to use your targeted keyword at least once at the beginning of your post, and then try to fit it in several more times if you can do so naturally.As you become more acquainted with SEO, you can even implement an SEO-friendly content structure based on your keyword research for WordPress.Taking keyword research for WordPress a little further LSI and LDABefore adding keywords to your site, keep in mind that they have to fit the content. Otherwise, you are at risk to sound weird, unprofessional, unnatural, and people might not take you seriously. No matter what youre trying to target, it can be done without sabotaging your business. Keywords are not the only thing you need for SEO, trust is also vital.Heres where Google gets smarter than just tracking exact keywords.LSI (Latent Semantic Indexing) is a mathematic method created to make natural (human) connections between terms and concepts. This way, related words and synonyms are taken into consideration. If you use words semantically/lexically connected with the keyword, Google will label your site as relevant to the original meaning.For instance, your keyword is second-hand laptops. You can sneak in your content alternatives like used laptop(s), small prices, major discounts, very cheap laptop etc. and Google will understand what this is about.LDA (Latent Dirichlet Allocation) is a topic modeling tool according to which a document (in this case, your site) is a combination of a few different topics, each topic covering a small set of words repeatedly, which Google can recognize and categorize easily.For instanc e, if the search query is piano, using descriptions with words from its lexical family such as notes, keys, hands, music(al), instrument might help you and Google mark your site as relevant. So, describe your product or service with as many characteristic words as you can, it will bring you extra points with the search engines.ConclusionBasic SEO is not hard to do. It requires training just like any other technique, after all. It comes in many steps and it can get pretty complex at times, but the most important step to start with is keyword research. If you manage to target the right keywords and add them to your site wherever theyre needed, you can then start to focus on building authority and trust.And you can only do that by delivering honest services and creating trustworthy content. Use your keywords, but try to stay true and objective at the same time. People are rarely impressed by sales-y, commercial, and incoherent website presentation. Keyword research for #WordPress is es sential. Here's how to do it

Transportation Geography

Transportation Geography Transportation geography is a branch of economic geography that studies transportation and all aspects related to it and the geography of an area. This means that it examines the transportation or movement of people, goods, and information in or across different regions. It can have a local focus in a city (New York City for example), as well as a regional (the United States Pacific Northwest), national or global focus. Transportation geography also studies the different modes of transportation such as road, rail, aviation and boat and their relationships to people, the environment and urban areas. Transportation has been important in geographic study for hundreds of years. In the early days of geography explorers used known sailing routes to explore new areas and set up trading outposts. As the worlds economy began to modernize and develop railway and maritime shipping became increasingly important and knowledge of foreign markets was essential. Today transportation capacity and efficiency is important so knowing the quickest way to move people and products is important and in turn, understanding the geography of the regions in which these people and products are moving is vital. Transportation geography is a very broad subject that looks at many different topics. For example, transportation geography could possibly look at the link between the presence of a railroad in an area and the percentage of commuters using rail to get to work in a developed area. Social and environmental impacts of the creation of transportation modes are other topics within the discipline. Transportation geography also studies the constraints of movement across space. An example of this might be looking at how the shipment of goods varies at different times of the year due to weather conditions. To gain a better understanding of transportation and its relationship to geography transportation geographers today study three important fields that relate to transportation: nodes, networks, and demand. The following is a list of the three major branches of transportation geography: 1) Nodes are the beginning and end points for transportation between geographic areas. The Port of Los Angeles is an example of a node because it is the start and end for the shipment of goods to and from the United States. The presence of a node is important economically because it can aid in the development of a city due to jobs for example. 2) Transportation networks are the second major field in transportation geography and they represent the structure and organization of transportation infrastructures like roads or train lines through an area. Transportation networks connect the nodes and are significant because they can directly affect the capacity and efficiency of the movement of people and goods. For example, a well-developed train line would be an efficient transportation network to move people and goods from two nodes, say, from San Francisco to Los Angeles. It is up to transportation geographers to study the differences between two networks to most efficiently move items between nodes. 3) The third major field of transportation geography is demand. Demand is based on public demand for different types of transportation. For example, if commuters are in constant traffic congestion on a daily basis in a city, public demand might support the development of a transit system such as light rail to move them within the city or two and from the city and their home. Overall, transportation is a significant topic within geography because the worlds economy depends on transportation. By studying how transportation relates to geography, researchers and geographers can gain a better understanding of why cities, transportation networks and the worlds economy have developed the way they have. Reference Hanson, Susan, ed. and Genevieve Giuliano, ed. The Geography of Urban Transportation. New York: The Guilford Press, 2004. Print.

Examples of Sanctions in International Relations

Examples of Sanctions in International Relations In international relations, sanctions are a tool that nations and nongovernmental agencies use to influence or to punish other nations or non-state actors. Most sanctions are economic in nature, but they may also carry the threat of diplomatic or military consequences as well. Sanctions can be unilateral, meaning they are imposed only by one nation, or bilateral, meaning a bloc of nations (such as a trade group) is imposing the penalties. Economic Sanctions The Council on Foreign Relations defines sanctions as a lower-cost, lower-risk, middle course of action between diplomacy and war. Money is that middle course, and economic sanctions are the means. Some of the most common punitive financial measures include: Tariffs: Surcharges on imported goods, often imposed to aid domestic industries and markets.Quotas: Limits on the number of goods that may be imported or exported.  Embargoes: Restrictions on or cessation of trading with a nation or bloc of nations. These can include limiting or banning travel by individuals to and from nations.Non-tariff barriers: These are designed to make foreign goods more expensive by complying with onerous  regulatory requirements.Asset seizure/freeze: Capturing or holding the financial assets of nations, citizens, or preventing the sale or moving of those assets.   Oftentimes, economic sanctions are linked to treaties or other diplomatic agreements between nations. They could be revocation of preferential treatment such as Most Favored Nation status or import quotas against a country not abiding by agreed international rules of trade. Sanctions may also be imposed to isolate a nation for political or military reasons. The United States has imposed severe economic penalties against North Korea in response to that nations efforts to develop nuclear weapons, for example, and the U.S. does not maintain diplomatic relations, either. Sanctions are not always economic in nature.  President Carters  boycott of the Moscow Olympics in 1980 can be viewed as a form of diplomatic and cultural sanctions imposed in protest against the  Soviet Unions invasion of Afghanistan. Russia retaliated in 1984, leading a multination boycott of the Summer Olympics in Los Angeles. Do Sanctions Work? Although sanctions have become a common diplomatic tool for nations, especially in the decades after the end of the Cold War, political scientists say they are not particularly effective. According to one landmark study, sanctions have only about a 30 percent chance of succeeding. And the longer sanctions are in place, the less effective they become, as the targeted nations or individuals learn how to work around them. Others criticize sanctions, saying they are most often felt by innocent civilians and not the intended government officials. Sanctions imposed against Iraq in the 1990s after its invasion of Kuwait, for example, caused prices for basic commodities to spike, led to extreme food shortages, and triggered outbreaks of disease and famine. Despite the crushing impact these sanctions had on the general Iraqi population, they did not lead to the ouster of their target, Iraqi leader Saddam Hussein. International sanctions can and do work sometimes, however. One of the most famous examples is the near-total economic isolation imposed on South Africa in the 1980s in protest against that nations policy of racial apartheid. The United States and many other nations ceased trading and companies divested their holdings, which in conjunction with strong domestic resistance led to the end of South Africas white-minority government in 1994. Source Masters, Jonathan. What Are Economic Sanctions? CFR.org. 7 August 2017.

Essay about globalization Example | Topics and Well Written Essays - 250 words

About globalization - Essay Example Where there is a wide range of positive effects of globalization, a variety of negative effects also exist, particularly on the local culture. Globalization has negative effects on culture in many aspects, but the greatly affected ones are food, traditions, and social values. According to The Levin Institute report (n.d), globalization has encouraged production and distribution of goods and services to people generating an access to products that were otherwise difficult to get. However, such transition has affected the viability of locally made products as well as those who manufacture them. The exposure to foreign cultural goods frequently brings about changes in local culture, values and traditions of Qatar. People of Qatar are greatly persuaded by the expansion of trade in cultural products as they are exposed to foreign cultures. In other words, gradually, foreign culture is percolating into the traditional culture of Qatar which has changed the local culture, values and traditions as a result people are undermining their own cultural identity. Due to globalization, a transition is observed in celebration of local festivals- Eid, Ramadan, Art festival where local artists display their talents. People of Qatar are greatly influenced by foreign culture and introduced celebration of some festivals such as mother’s day in a grand manner which was actually not the part of Qatar tradition. Thus, a drift is observed in local tradition and festivals as these are considered to be old fashioned, in fact, inclination and adaptation to foreign culture is

Italy' economy Research Paper Example | Topics and Well Written Essays - 500 words

Italy' economy - Research Paper Example The economic crisis of 2007-2011 had a negative impact to Italy’s economy. During this crisis, the economic growth went down by 6.74%. This left Italy in a huge budget deficit. Italian debt rating was quite poor by 2011 attributed to the government’s inability to make effective decisions on national issues. However, this changed over that period when the government adopted austerity measures that led to a budget deficit of only 1.5% in 2011. According to the International Monetary Fund, measured by nominal gross domestic product, Italy’s economy is the seventh largest in the world and fourth largest in Europe preceded by Germany, France and United Kingdom (OECD 127). This is despite its late industrialization and the current economic growth being almost stagnant. Most economic growth has been contributed by industrialization, which developed rapidly in the 1950’s. There is also practice of agriculture, which contributes about 2% of its growth domestic product, and tourism is the most important industry (Rodgers & Simon 134). Industries in Italy are diversified ranging and mostly based on the North in Milan, Turin and Genoa. Over half of the labor force is employed in the manufacturing industry that deals with chemicals, food, clothing, footwear, motor vehicles and ceramics among others OECD 34). The rest are employed in agriculture that deals in livestock like goats, cattle sheep and pigs together with plants like soybean, grapes, potatoes and sugar beets. Most of these industries were state owned but recently, the trend is changing to privatization. Most scholars and analysts suggest that Italy’s economy should have been above other countries like China or even Japan. Since this is not the case, political instabilities and the problems discussed above in the history of the economy as discussed are some of

Airframe Structure Failure and Survivability Essay Example for Free

Airframe Structure Failure and Survivability Essay There are many different variables that come into play during an aircraft accident. It is an investigators job to find out what caused the failure. Failure of an aircraft primary structure is ranked high on the list of risks aircrews would rather not face. Mechanical component failure which can lead to loss of control of the aircraft is not far behind. Another issue which must be addressed in any aircraft accident is the question and of crash survivability. Even if no one was injured the investigator must find out what worked and what didnt. If there were injuries, several questions should be asked. The chapters I will be covering will give the investigator a look into what causes structural failure, and how to determine crash survivability. An aircraft accident investigators job is to determine what caused the crash. Structural failure is a vital part of the investigation. The term structure failure means where the material fails to carry below it was intended to carry. A structure can fail in one of two general ways. One way is it can be fractured, which means broken into two or more pieces. Another way is when the structure shape is changed so that it can no longer carry its load. With this kind of failure, the structure is still in one piece. It could be bent, stretched, corroded, or so worn that it can no longer do its intended job. Over the next few pages, I will be going into detail about the different ways structures can fail. There are many reasons why an airplane structure can fail. As I have just gone over a few in the last paragraph, there are many different ways this can happen. In chapter 35, the book talks about overload. This is, when an in-flight load exceeds the weight the part was designed for. All structures to include bridges, buildings or airplanes are created to withstand only specific loads. It is unrealistic to assume that airplanes can be designed and built to withstand any conceivable load it can experience. If a structure is exposed to a load greater than which it was designed for, it will structurally fail. Be it deforming, or fracturing into two or more pieces. These are two general reasons why aircraft structures fail. Aircraft structures are designed to withstand loads generated by air at some maximum airspeed and the loads generated while maneuvering at some G load. Most aircraft can be flown at speeds and G loads which can place excessive loads on the aircraft structure. Aircraft that is directly exposed to onrushing air could be damaged as the dynamic pressure of the air stream is converted to static pressure pressing inward on the structure. Excessive speed can reduce the airplanes stability. The bottom line is that a lot of bad things can happen when an aircraft exceeds it’s redline airspeed. One of the clearest reasons for failure of a structural component is that the component lacked the proper strength to withstand the loads created while the aircraft is flown at its normal operating limits. There are numerous reasons why a structural component could be understrength. It is possible that the engineering of the structure was inadequate. The designer could have possibly made an error which was not caught during the testing phase. Another reason could be that wear and tear caused a weakening to the structure. Service life issues are normally divided into four sub areas; fatigue cracking, corrosion, wear and creep. The four of these progressive failures which cannot be undone as the aircraft accumulates flight hours ground-air-ground cycles. An aircraft structure can be weakened in a somewhat short period of time. Exposure to heat can greatly reduce a metals strength. For example, some aluminum alloys that are exposed to temperatures of 400Â ° for 5 minutes can reduce the alloys strength by 80%. Jet engine hot sections and compressor bleed airlines are made of materials such as stainless steel or titanium alloys which maintain most of their strength in relatively high temperatures. This problem happens when structure which is not been designed for high temperature is exposed to high temperatures. Some aircraft which can reach high supersonic speeds require the leading edge structures to be able to withstand the extremely high temperatures generated at these speeds. There are two general areas when it comes to aircraft structures. You have a primary structure, and a secondary structure. The primary structure is parts of the aircraft that are necessary to safely fly its mission. The following components are normally considered to be part of the primary structure: wing structure, fuselage structure carrying flight, ground and cabin pressurization loads, empennage, landing gear structure, engine mounts and supporting structure. The primary structures can be further sub categorized as either critical structure or principal structure elements. Critical elements are those whose failure would result in catastrophic failure of the aircraft. Principal elements are those that contribute significantly to carrying flight, ground and pressurization loads whose failure could or could not result in catastrophic failure. The following components are considered to be the secondary structure: aerodynamic fairings, tail cones, and landing gear doors. There are other mechanical components which carry flight critical loads. Even though these components have failure modes that are closely related to those exhibited by the primary and secondary structures, they do not fall into either of those categories. Components like hydraulic pressure lines, drive shafts, electric alternators, and gear teeth in transmissions all have modes of failure which can give clues concerning the nature of the loads which caused them to fail. In aircraft accident investigator will have a firm understanding of the loads that airplane structured caries and the physical evidence that these loads leaves behind when they fail. The many types of loads are vectors and have both magnitude and direction. You can change the load by either changing its magnitude, for example increasing or decreasing the pounds of force being applied, or by changing its direction by applying force upward instead of down. Loads can take a finite length of time to be imposed. Even though loads can be applied in a very short period of time they can be applied or changed instantaneously. The fact that loads take time to apply and or change is important for the accident investigator understand. The book separates loads into three general areas; static loads, dynamic loads, and repeated loads. Knowing the difference between the three types is important because the nature of the load has a lot to do with the failure of the structure and the evidence left behind. If a load were applied so slowly that the structure to which the load was being applied to stayed equal at all times the load would be considered a static load. A static load can be either for short or long period of time. A dynamic load happens when the loads are applied fast enough to prevent the structure from carrying the load while remaining in equilibrium as the load is being applied. Dynamic loads can be divided into two subcategories, sudden, and impact. A sudden load will impose stronger internal stresses in the structure. Components such as landing gear are tested with dynamic loads. Impact loads are applied at faster rates than sudden, causing the structure to fracture almost every time. Impact loads are usually limited to high-speed bird impacts and crash tests. Repeated loads are just like they sound, loads that are repeated over and over again. Due to the behavior of dynamic impacts and longtime static loads, it makes them unlikely candidates for repeated loads. Short time static and sudden dynamic loads can be repeated over and over again. If a component goes through lots of repeated load cycles before it fails due to fatigue cracking it is said to have experienced high cycle fatigue. By lots of cycles the book means hundreds of thousands or millions or tens of millions of cycles. One of the ways investigators look at structure failure is to consider the time it took for the failure to occur. If the failure happened at the instance of a single load, it is called an instantaneous failure. If the failure took a period of time to occur, that is called a progressive failure. If a structural component contained a load that caused significant distortion, but did not exceed the materials yield stress, and the structure springs back to its original shape after the load is removed is called an elastic deformation/distortion failure. Now if the same events occur and the structure does not spring back to its original shape after the load is removed, that is called plastic deformation/distortion. This is a permanent shape change, unlike the elastic which is a temporary shape change. Now if the load reaches the point where internal stresses not only cause significant plastic deformation, they exceed the materials ultimate stress, the structure will then fracture and separate into two or more pieces. This is called a fracture failure. An experienced investigator can tell the difference between the five different types of structural failure. Another form that causes structural failures is corrosion. Corrosion is the natural disintegration of material as it is attacked by one or more substances in its environment. During the refining process, energy is added to metal ores and other raw materials in order to produce the mechanical properties necessary in structural components. Mother Nature the great equalizer, doesnt like variances in energy levels and sets to work trying to bring the material back to the low energy levels existing in the products of corrosion. When it comes to aircraft structural components, mother natures attack will reduce the strength and ductility of components turning strong metals into meek metallic oxides, hydroxides or sulfates. If these compounds are not removed from the structure they can worsen the problem by providing an environment which is ever more favorable to continued corrosion. There are many different forms of corrosion. Some can be the result of a direct chemical attack by reactive substances in the environment. Pitting is a common form of corrosion. Small holes that are randomly located across the metal surface are called pits and sometimes may be accompanied with a powdery residue. Even though pits may appear to have damaged only a small percentage of the surface, they penetrate deeply in a branching matter causing loss of strength and ductility which is way out of proportion to metals surface appearance. Chemical corrosion involves the reaction between a metal structure and some chemical agent. If you introduce corrosive acid on a metal wing, the acid and the metal will react to form new and undesirable compounds. A selective attack is when corrosive actions seem to favor one part of the components or assembly above another. The primary type of selective attack is intergranular corrosion. This type of attack centers on the grain boundaries with in a metal component before consuming the grains themselves. Similar to pitting the damage from this kind of attack causes a loss of strength and ductility which is out of portion the amount of metal that is corroded. Another form intergranular corrosion is exfoliation, whose progress and go undetected until all structural integrity is lost. Grain boundaries attacked by this type of corrosion are normally flattened and or elongated grains of extruded or rolled metals. This type of corrosion can move undetected along the grain boundaries. Slow removal of material from the surface of the component by a mechanical action is referred to as wear. In most cases wear is undesirable, wear during break in on new or overhauled equipment is often a necessary ingredient in establishing proper operation and long service life. The type of wear the book talks about is the kind that leads to premature failure and breakdown. Abrasive wear happens when small abrasive particles cut into and remove material from surfaces of two components which are held together while moving. When this type of wear happens one question an investigator must ask is, where did the particles come from? Adhesive wear occurs when microscopic projections of the surfaces of the two components which are sliding across each other may contact, weld together and break off. A question that an investigator can ask is was the surface lubricated? Erosive wear is similar to abrasive wear in that foreign particles are cutting tiny chunks out of the surface. Its a little different from abrasive wear in that the abrasive particles gain their penetrating energy by a fluid that is carrying them along. How did the particles enter into the fluids is a question an investigator could pose. To prevent structure failure, the components go through an inspection called non-destructive inspection (NDI). NDI are inspection techniques which will not do significant harm to the object being inspected. Other names for this type of inspection is called non-destructive evaluation (NDE) or non-destructive testing (NDT). There are six specific techniques for these inspections. First, visual inspection is the simplest form and most common of the NDI process and uses your God-given gift of sight. To assist this type of inspection, illumination, magnification, and remote viewing are used to help. Another type is dye penetrant. This inspection is used to detect small surface cracks and discontinuities which may not be visible during strictly visual inspections. This technique is simple, but time-consuming. The component being inspected is covered with a colored liquid which is absorbed into surface cracks. The liquid includes a phosphorescent material which when exposed to ultraviolet light glows in the dark so small surface cracks are visible to the naked eye. Magnetic particle inspection provides another way to assist the eye by increasing the conspicuity of a surface crack. This process requires more specialized equipment then the dye penetrant process, it makes the crack even more obvious if properly used. This inspection makes use of the fact that when a magnetic field is induced in a component made of Ferro-magnetic material, surface cracks will alter the components magnetic field. When magnetic particles are placed on a magnetized surface it will align themselves along the magnetic field showing any variations caused by the cracks. If the magnetic particles are phosphorescent and viewed in a dark room under an ultraviolet light pattern around the cracks will be more visible. Eddy current is the first technique that is discussed that does not require direct viewing of the crack. This process involves the use of a probe to generate both an electromagnetic field and sense and evaluate the Eddy current generated in the material being inspected. When either or surface or near surface cracks are in the material it will alter the shape of the Eddy current and magnetic field it generates. This can be as simple as a twitch on a meters needle. The equipment needed for this type of inspection must be calibrated for the specific design being inspected and the size of the crack being search. Ultrasonic inspections make use of high-frequency sound to find surface and subsurface defects. The high-frequency sound waves are generated by a transducer and then beamed through the part being inspected. The reflective waves or the remnants of waves which penetrate the part are being measured with a receiver and electronically evaluated. There are two different ways the sound waves can be applied to and retrieved from the part being inspected; immersion of the part into a fluid which carries the sound waves to and from the part and direct contact inspection where the transducer and receiver are in direct contact with the part. The direct contact technique is much more mobile allowing use in the field of the aircraft or major fabrications. Radiographic inspection in its simplest form is not much different than that of an x-ray. Very short wave electromagnetic radiation are generated and directed through the part being inspected and towards unexposed radiographic film. Rays passing through cracks, flaws, voids and corroded areas will not be attenuated as much as raise passing through sound material. To the untrained eye, cracks, flaws, voids and corrosion may appear to be just another shadow on the film. Orientation of the x-rays so as to illuminate the discontinuities and proper interpretation of the film are therefore important aspects in ensuring the thoroughness of the inspection. One of the issues which must be addressed in any aircraft accident is a question of crash survivability. Even if no one was injured, the question of what worked and what didnt work should always be asked. Did the restraint systems operate as designed? Whether or not escape hatches were needed, could they have been opened if needed? Did the emergency lighting system work? How crash survival equipment is designed is based on experience, history, and sound engineering judgment. To know if these components work correctly design requires an accident for verification. The accident is a chance to validate our judgment and we cannot afford to pass it up. To make investigation of aircraft crashes a little easier requires a systematic approach by breaking down a complicated series of events into smaller, more digestible bites. The approach chapter 36 goes over is the CREEP method. CREEP stands for: Container, Restraint, Energy absorption, Environment, and Post-crash factors. The first four of the five CREEP elements relate to the dynamic portion of the crash itself. These four factors are concerned with the initial and any subsequent impacts with the terrain, the associated deceleration forces acting on the aircraft and its current occupants, and the deformation and dislocation of aircraft structure and its contents. The fifth factor relates to the occupants attempts to egress the aircraft before suffering additional injuries not directly resulting from the dynamic portion of the crash. In order to survive a crash it is first necessary to provide a living space for the occupants during the dynamic portion of the crash. If the space is crushed or punctured, the chances of survival fall drastically. This factor is container. Now if the occupants have been provided with adequate living space, the next series of questions should deal with the restraint of the crew and its passengers and equipment and components around them. Occupants of any moving vehicle must be protected from injuring collisions with in the vehicle, for example being thrown against the sides of the living space or having objects such as cargo or equipment thrown at them. The strength of all restraints should be sufficient to prevent injury at the force levels which can be expected during the most severe but survivable crash. The investigator should examine all restraints system failures to determine if there failure contributed to injuries experienced by the crew or passengers. The deceleration forces created during a crash may be high enough to cause fatal or serious injuries, even if a safe living space, adequate crew and passenger restraints, and a delethalized flailing envelope are provided. Since crew and passenger bodies are not strongly attached to the airframe, the design of the aircraft structure and seeds may cause the acceleration forces experienced by the crew and passengers to be either amplified or attenuated. A soft deep seat cushion can greatly amplified the vertical Gs experienced by someone sitting in the seat. The deep seat cushion deforms at high loads absorbing energy as it gives can greatly reduce the vertical crash loads to which a seat occupant is subjected. Hopefully, the designers will build a secure box around the crew and passengers and secure them to it. Although we may be able to restrain the torso, it is normally impractical to secure the head and limbs of the crew and passengers. The volume through which the unrestrained extremities can be expected to move shouldve been the legalized to the maximum degree possible. Obstructions which could cause injury should either remove from within the flailing envelope or padded to reduce the severity or probability of injury. This is the environment that the creep method covers. All too commonly, crew or passengers survived the dynamic portion of the crash, only to suffer additional injuries or death when they are unable to safely exit the aircraft in a timely manner. The two primary factors in the causation of fatalities during otherwise survivable crashes is, post-crash fire and inability to quickly exit the damaged aircraft. Fire is the most significant post-crash hazard by a long shot. Not only can the fire kill and injure directly through heat, the toxic fumes and smoke produced when material and the aircraft interior burn are more often the direct cause of death. This post-crash condition is a top priority in controlling to prevent death. Design of airplane exits is predicated on the normal parked attitude and configuration. Obviously, this is not always the case. Sometimes occupants will have to exit from an airplane that is an abnormal attitude and perhaps in a very unusual configuration. Part 125 airplanes have specific emergency exit acquirements levied on them, many general aviation airplanes have only one exit which can be easily jammed in the airplane ends up inverted. In conclusion, nobody is expert on all types of structural failures. With so many different variables, it takes a highly detailed investigator to pinpoint what kind of failure causes a crash. And without a systematic approach of investigation of a crash, the investigators are left with an accident that is difficult to determine whether or not the occupants should have survived the impact.

Racism Essay -- essays research papers fc

Institutional Racism in American Society "Racist" and "racism" are provocative words in American society. To some, these words have reached the level of curse words in their offensiveness. Yet, "racist" and "racism" are descriptive words of a reality that cannot be denied. African Americans, Hispanic Americans, Native Americans and Asian Americans (people-of-color) live daily with the effects of both institutional and individual racism. Race issues are so fundamental in American society that they seem almost an integral component. Some Americans believe that race is the primary determinant of human abilities and capacities. Some Americans behave as if racial differences produce inherent superiority in European Americans (whites). In fact, such individuals respond to people-of-color and whites differently merely because of race (or ethnicity). As a consequence, people of color are injured by judgments or actions that are directly or indirectly r acist. Much of the attention of the last 20 years has focused on individual racist behavior. However, just as individuals can act in racist ways, so can institutions. Institutions can behave in ways that are overtly racist (i.e., specifically excluding people-of-color from services) or inherently racist (i.e., adopting policies that while not specifically directed at excluding people-of-color, nevertheless result in their exclusion). Therefore, institutions can respond to people-of-color and ... Racism Essay -- essays research papers fc Institutional Racism in American Society "Racist" and "racism" are provocative words in American society. To some, these words have reached the level of curse words in their offensiveness. Yet, "racist" and "racism" are descriptive words of a reality that cannot be denied. African Americans, Hispanic Americans, Native Americans and Asian Americans (people-of-color) live daily with the effects of both institutional and individual racism. Race issues are so fundamental in American society that they seem almost an integral component. Some Americans believe that race is the primary determinant of human abilities and capacities. Some Americans behave as if racial differences produce inherent superiority in European Americans (whites). In fact, such individuals respond to people-of-color and whites differently merely because of race (or ethnicity). As a consequence, people of color are injured by judgments or actions that are directly or indirectly r acist. Much of the attention of the last 20 years has focused on individual racist behavior. However, just as individuals can act in racist ways, so can institutions. Institutions can behave in ways that are overtly racist (i.e., specifically excluding people-of-color from services) or inherently racist (i.e., adopting policies that while not specifically directed at excluding people-of-color, nevertheless result in their exclusion). Therefore, institutions can respond to people-of-color and ...