I Versus We Theory is Hidden Everywhere :: Sociology Sociological Essays

I Versus We Theory is Hidden Everywhere Albeit each writer gives oneself the objective to compose an extremely exceptional bit of work, we the perusers can see similitudes among compositions extended over decades. Made characters, settings, and conditions will in general change starting with one bit of work then onto the next, however subjects, as a rule, all arrangement with the equivalent regular issues. These rehashed subjects are not unintentionally. Scholars investigate what the open likes to find out about. Truth be told, presumably one of the most well-known subjects is the I versus We hypothesis, which is essentially the possibility that individuals can change from being narrow minded into paying special mind to the entire gathering, for example, a specific race, family, companions, or age gathering. Since the topic is so extraordinary, it is typically found in books, where there is a lot of space to communicate various guides to absolutely persuade the perusers that the principle character has genuinely changed. B y taking a gander at J.D. Salinger’s The Catcher in the Rye and John Steinbeck’s The Grapes of Wrath, we can show how they, as well, expound on this progress, as does Sam Greenlee in The Spook Who Sat By the Door. In spite of the fact that these three books were distributed over the range of three decades with fluctuating social gatherings, they all delineate precisely the same issue. The Spook Who Sat by the Door by Sam Greenlee shows the I versus We hypothesis by building up the issue of one man, Dan Freeman, who is just worried about his prosperity, yet unreasonable treatment of others transforms him into a military legend. From the start, in section two, Freeman focuses fundamentally on his acknowledgment into the CIA. This narrow minded disposition is as yet depicted in part five when the Dahomey Queen, a close by hooker, is utilized for delight purposes as it were. In this equivalent part, Joy, Freeman’s sweetheart, appears and requests that he quit the CIA. In spite of the fact that he adores her, he will not surrender his fantasy to be the main dark representative in the CIA. The change to the We wonder happens in part eight when Freeman decides to leave the CIA and chooses to fill in as a social laborer. The compensation, just as his social climbing, takes a fall, yet his appetite to help other people does a turn around. A nearby posse keeps Freeman enthusiastic and vivacious to battle for all blacks, not only for a couple of children.

Variety of Heuristic Strategies Samples †MyAssignmenthelp.com

Question: Talk about the Variety of Heuristic Strategies. Answer: Disposal by perspectives Strategy Heuristics allude to straightforward, productive guidelines utilized by individuals in the dynamic procedure. Leaders have an assortment of heuristic procedures available to them. My most favored technique is end by viewpoints which includes distinguishing proof of the most significant characteristic for me and removing those choices that don't meet the models (Goodwin and Wright, 2014). This system guarantees that I am left with the absolute most significant alternative among various choices. For instance, when I need to purchase another telephone I utilize one significant trait, for example, inside capacity limit and Camera megapixels and dispose of a portion of the accessible alternatives since they have a lower limit or camera megapixels than I want until I am left with the best choice. Focal points Among the upsides of this technique is that it is moderately simple to utilize and can be supported effectively (Zeleny, 2011). Impediment This methodology doesn't, in any case, ensure that the choices held are better than those wiped out (Goodwin and Wright, 2014). References Goodwin, P. what's more, Wright, G., 2014. Choice Analysis for Management Judgment fifth ed. John Wiley and children. Zeleny, M., 2011. Numerous models dynamic (MCDM): From worldview lost to worldview recovered?. Diary of Multi?Criteria Decision Analysis, 18(1-2), pp.77-89.

Missing Pieces

Missing Pieces As you may have read on the front page of mitadmissions.org, our fabulous Records Office team has processed all of the mail we have received. This is a good time for you to check your application tracking on MyMIT. It will show what materials we have processed for you. We should have the following: Application Part 1, Application Part 2, Secondary School Report and Transcript, Evaluation A, Evaluation B, Testing Requirements, and, if applicable, Interview Report. What happens if the tracking system is missing something? First, do not worry. We do not assign blame on why we dont have it, we just know that we have not processed it. We will not look at your application unfavorably because it is missing an application component at this time. There are still more weeks of reading to be done, so as long as you get us the copies in a timely manner, well be able to evaluate it before selection committee begins. The best way to get us a missing piece is by fax. Our Records Office fax number is (617) 258-8304. If we are missing an evaluation, the teacher may fax a copy to us. If they need another copy of the evaluation form, you can get a PDF from the tracking system. If you had an interview more than two weeks ago and we havent yet processed it, you should fill out the Conducted Interview form on the MyMIT Application Tracking Detail page. We will follow up with your Educational Counselor. If we have not processed standardized test scores that that you had the testing agency send us, then you may fax us a copy of an official score report. We will follow up with the testing agency. As mid-year grades are not yet available for most students, we do not expect that most students have sent in the Mid-Year Grade Report. You should send this in as soon as possible after your grades are available. Bottom line: do not stress if we are missing pieces. It happens every year for reasons usually beyond your control. No worries.

My High School Experience Essay - 1101 Words

When people start high school they’re usually so excited. They can’t wait to experience everything that comes with being in high school, I mean who wouldn’t? Everyone says that high school is the best four years of your life. Now that I’m months away from graduating, I can’t say they were my best years but I can say they were my most educational years, of course I wouldn’t say that they weren’t fun because they were. When I say educational, I mean I’ve learned so much about myself and so much about life. I learned what the words family, love, betrayal, law and life meant. All these events changed me, and I’m glad they happened because I wouldn’t have learned all these lessons. My personality hasn’t changed; I’m still a carefree girl,†¦show more content†¦My freshmen and sophomore year, I had my first real boyfriend. I was completely and totally in love with this guy, he changed me in ways that I’m proud of and ways that I’m not proud of. I revolved my world around him, which wasn’t a good idea. After almost two years of dating, we broke up and it literally shattered my world. During our relationship I became friends with his friends and I even considered one of them my best friends, so when we broke up I didn’t only loose him, I lost all of them as well. It felt so awful to all of a sudden have everything, and then just lose everything in a day. A couple of weeks later, I found out that my best friend was actually dating my ex boyfriend. I couldn’t believe that a person could betray someone like that, especially after everything that she and I went through together. I’m not proud of the events that happened after all of this, and I’m not proud of how I let them change me. The one thing that saved me was my family; they saved me in ways I can’t even explain. They gave me hope and a new life for me that I am extr emely grateful for. I’ve learned to be wiser when it comes to picking friends, and choosing who to put my trust in. I also became a stronger person, I don’t let people walk all over me or I don’t let people control my life anymore. The last event is the one that taught me the most about how hard life is, and how life isn’t always fair. My junior year was spent in Tijuana,Show MoreRelatedMy Experience In High School952 Words   |  4 Pages High school is a time where young minded teenagers are encouraged to explore their interests and what type of character they want to become when graduation rolls in. My high school experience was an interesting time with choices that have changed my life and some that I wish I could take back. Looking back at my high school career there were some moments where I made the correct choice and some that I wish didnt happen at all. A choice I made at the age of seventeen reminds me of how foolish andRead MoreMy High School Experience1016 Words   |  5 PagesHigh school is an educational and eye-opening place for adolescents and young adults, and is ultimately the last checkpoint some people have before they transition into the adult world. After high school, students are often expected to completely fend for themselves. The transition for many students is complicated and confusing. For this reason, one series of high school experiences I have had that stick out clearly in my mind as a step away from my childish behaviors to my more adult-like ones areRead MoreMy Experience At High School862 Words   |  4 PagesMy mom and I were driving home from my club volleyball practice when I broke down in tears due to stress. High school class registration was coming up and I still had no idea whether or not I wanted to do band or volleyball in high school. Being a 14 year old in 8th grade, I never thought that I would have to make such a colossal decision that would affect my life forever. I only had 2 more days to decide how I would present myself in the new world of high school popularity, and I had no idea whetherRead MoreMy High School Experience1060 Words   |  5 PagesHigh school can be a difficult journey in one’s life. Teenagers create drama, teachers stress out students with an abundance of homework, and sometimes procrastination defeats the high schoolers will to get work done. Despite all of that, high school is great; one must look at the little momen ts, the fun times, and the friends throughout. Arnold Spirit, Jr. had an atypical freshman year in Sherman Alexie’s novel â€Å"The Absolutely True Diary of a Part-Time Indian,† and taught many lessons throughoutRead MoreMy Experience At High School991 Words   |  4 Pagesimprovement throughout my school experience. I’ve learned how to break a lot of bad studying habits I had in high school and taught myself how to become a better student with new studying mechanisms, time management, and how to balance all my classes out equally. Every semester is a new chance to improve on how to become a more successful student. High school were four years of my life that I had a lack of motivation to do school work, I didn’t put as much effort into learning. My studying habits wouldRead MoreMy Experience At High School849 Words   |  4 PagesThe experiences I have gained during these long four years of high school have shaped me into the young adult I am. I have had to learn many lessons about myself and friends. Many failures have had to be taken in stride, and I am glad to say that I overcome and dealt with them all in the name of evolution. Many of the hardest lessons I have had to learn about myself, I learned them in Terry High School. I was used to being able to excel easily, and this was not the case all of the time in my highRead MoreMy Experience At High School1296 Words   |  6 Pagesgraduated high school and I was still seventeen. I had applied to colleges throughout my senior year just to show my parents that I was doing it. I honestly had no idea what I wanted to do after high school, which was my first change. There are unlimited paths to take once you graduate high school, I did not know which one was for me. I had friends who all had a path they wanted to go down and accomplish, and most of them to this day are still on that path. As for me, I have changed my mind overRead MoreMy Experience At High School Essay1726 Words   |  7 Pages Suddenly my senior year of high school was coming to an end, and I found myself looking for a job for the summer. College cost increase every year and I knew that if I w anted extra spending money, I would have to contribute. Summer employment is a great way to earn extra money plus, I am a person who likes to stay busy, and I realized having a job during the break would help accomplish both. Having played multiple sports in high school, I was always doing something throughout my day and I knew IRead MoreMy Experience At High School1012 Words   |  5 PagesThroughout my life, I’ve experienced periods of time where my interest in an activity would peak. Sometimes it was a television show, other times a game, and, on rare occasions a class I had at school. When I first got to high school, I was unsure how it would shape me as I grew into an adult. Before going to my first day at high school though, I had my first day somewhere else: Millstone trails, where I would spend much of my next four years after school running for cross country practice. I hadRead MoreMy Experience In High School1294 Words   |  6 PagesEach year of school you meet n ew people and experience new lessons. The school year comes with many hardships and downfalls, but it also comes with some good times. For me personally, freshman year was the not only the toughest year of school to get good grades, it also had some of my most traumatizing life experiences and lessons. Freshman year was not all bad though. For example, I met many new people that I cherish dearly in life and made solid relationships with new friends, teachers, and

The Insider Secret on Samples of Process Analysis Essay Exposed

The Insider Secret on Samples of Process Analysis Essay Exposed There's no need to incorporate any background in the procedure breakdown essay. There are lots more topic suggestions and totally free examples online. Time is a significant element. If at all possible, be certain to include things like a photo of the said object you're planning to use if you want to publish the said essay online. The most crucial facet of the procedure should kick start the instruction. The outline needs to be employed to supply instructions in a defined order. Crosscheck the circulation of steps to make sure you have not skipped or repeated a procedure. It is very important to continue to keep your directions or process steps as easy as possible. Samples of Process Analysis Essay: the Ultimate Convenience! All you have to have in order to quit is your intent to do it and your private will. In summary, the above mentioned process description presents the measures involved with capturing a do g in a secure and humane method. The key issue is that the procedure is described in a logical order and in a very clear way. A whole lot of the moment, it can help to break down each process into subsections. The next thing to do is to define any technical terms that are going to be utilized in the paper. Creating an outline will provide you with the opportunity to consider which steps are important and then set the steps in the right order. A process essay example can be an actual salvation if you're puzzled and can't compose a line. The part of a process analysis essay is to emphasize the procedure for performing a job, how something is accomplished or how an event occurred. Consider each one of the ingredients, staff and machinery required to create the food you're learning about. Use critical thinking skills in analyzing the entire process to make certain it's complete. Bear in mind, a process essay contains multiple elements and the secret to success is to connect t hem all. Process analysis isn't simply describing the procedure. Just like project analysis, it makes sure that the process are made to be effective. When you haven't already mastered the process, it is going to be challenging to learn and compose all at one time. Evidently, every method differs. Most of all, business analysis is essential for companies to locate solutions to problems. One of the absolute most important maintenance duties for cars is altering the oil regularly. Potential risks or side effects which are very likely to generate from the procedure ought to be started so the reader remains informed. The process essays are usually written for companies or people who need tutorials. The Number One Question You Must Ask for Samples of Process Analysis Essay Don't be afraid to find some excess assistance to turn your paper stick out! At the exact same time, process analysis essays are helpful to boost the analytical skills of the individual who's writing them. Many diverse grades of paper are readily available. What Everybody Dislikes About Samples of Process Analysis Essay and Why For example, if your process essay is all about making the very best shepherd's pie, consider drafting a paragraph on how best to make the filling below and another paragraph on the best way to create good mashed potatoes in addition to the lamb filling below. Find out everything there is to learn about making the food product about which you're writing. Any sort of expository paper has a particular tone and manner. If you wish to succeed in delivering an outstanding paper, you ought to start with getting acquainted with its definition. All the essays are written in a really low-cost price with higher quality by the ten decades long skilled essay helpers. Let's get going with a streak of process analysis essay topics that will help you on your way to an excellent process analysis essay. New Ideas Into Samples of Process Analysis Essay Never Before Reve aled As you finalize your topic choice, don't forget to select a process you've completed many occasions and you can explain to somebody else. What's more, you're likely to want to decide on a process which you're acquainted with but that the bulk of your readers aren't. Now, there are a number of individuals who might already have a notion about what to do with them. Process analysis intends to command the people involved with the project on what things to work on, giving them a more clear idea of what things to do. All your writing ought to be simple to understand and follow for your audience. Be sure that the reader knows everything involved with the procedure you're writing about. You need to make sure your reader keeps on reading. Furthermore, don't forget to spell out why the reader is to execute each step and what the total goal is. The Fundamentals of Samples of Process Analysis Essay Revealed There isn't any particular order or rules on the best way to compose a p rocess analysis essay outline. There's no should get any arguments or supporting facts. Each procedure is unique and therefore, the essence of the procedure, and the range of steps will choose the loudness of the analysis essay. Getting mindful of the point of a process analysis is crucial to ensure the course in achieving a specific objective is well understood in order to prevent any mistake in the long-run.

Sub Level Caving Free Essays

Sublevel caving techniqueSimplicity and low cost are the essence SUBLEVEL CAVING TECHNIQUE SIMPLICITY AND LOW COST ARE THE ESSENCE Author: Partha Das Sharma, B. Tech(Hons. ) in Mining Engineering, E. We will write a custom essay sample on Sub Level Caving or any similar topic only for you Order Now mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ 1. Introduction – Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible. Mining now proceeds underground, underneath the open pit. At first, both a raise and a network of tunnels are made. At different sublevels, jumbos are used for long hole drilling, drilling directly upwards into the roof. These holes are then charged with explosives and blasted. As the roofs cave in, the rock from the ground surface will cave in to the underground as well. Scoop trams or Load Haul Dump (LHD) vehicles transport the muck, loosened rocks, to an ore pass where the rocks are lifted to the surface. Drilling and blasting takes place at different underground levels of the mine at the same time. As the blasted rock, muck, is continuously transported to the ore pass, more blasting will encourage the roof to cave in to the void and further into the drift. This is repeated until blasting, caving and transporting depletes the entire orebody. 2. Modern day Sublevel caving – The sublevel caving technique, as the method is applied today, the whole quantity of ore between the different sublevels is broken using ——————————————————————————————————Author: Partha Das Sharma, E. mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ 1 Sublevel caving techniqueSimplicity and low cost are the essence controlled drilling and blasting. Sublevel caving is in many respects simple. It can be used in orebodies with very different properties and it is easy to mechanize. In sublevel caving, ore is developed from a series of sublevels spaced at regular intervals throughout the orebody. Mining begins at the top of the orebody. A series of ring patterns is drilled and blasted from each sublevel. Broken ore is mucked out after each blast and the overlying waste rock caves on top of the broken ore. This technique is inexpensive, highly mechanized and yields a large amount of muck. It is normally used in massive, steeply-dipping orebodies with considerable strike length. Since dilution and low recoveries are unavoidable, sublevel caving is used to mine lowgrade, low-value ore-bodies. However, studies are going on in various levels to eliminate the shortcoming of the system. The designs which are used and the measures which can be taken to eliminate the disadvantages are less understood. Possibly the modern version of the method was developed in the iron mines of Sweden. Over the past few years, the scale of sublevel caving has increased markedly with LKAB being a leader in this regard. Today, with the continuing push to increase mining scale, a fundamental question is whether the gravity flow principles which served as the design basis for the small-scale sublevel caving mine designs of the past can be applied at much larger scales or whether some other approach is required. In fact, in design and operating practices, sublevel caving is among the most advanced of all mining methods. Sound engineering is indispensable to its conduct. The reason is related to the complexity of the caving action and the necessity of controlling it. The increased sublevel interval requires diligence in drilling, loading and blasting practices. The advent of improved drilling technology has made increased sublevel intervals possible in the sublevel cave mine. Hydraulic tube rod drill rigs have made long ——————————————————————————————————- 2 Author: Partha Das Sharma, E. mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ Sublevel caving techniqueSimplicity and low cost are the essence up-holes accurate with less than 2% deviation. Apart, blasting pattern used has also plays very important role. Proper fragmentation and blasting efficiency is evaluated by measuring the percentage of muck which is able to pass the designated blast size. 3. Description of sublevel caving method – An underground mining method used in large, steeply dipping orebodies where the wall rock is of an incompetent nature. Parallel drives are developed in the ore on equally spaced levels. The ore is then drilled and blasted using longholes between levels, often in a circular or fan pattern, on retreat. The weight of the rock is used to assist breakage. The upper levels are mined ahead of lower levels. Broken ore is extracted from the drive before the next blast takes place. The wall rock caves in when the ore is extracted. As discussed, in sublevel caving, the hanging wall is allowed to cave in as the ore is drilled, blasted and removed. The wall caving is induced by mining the ore in controlled sequence, usually from hanging wall to footwall and from top to bottom. Sublevel caving is often used in conjunction with surface mining. Sublevel caving extracts the ore via sublevels, which are developed in the orebody at regular vertical spacing. Each sublevel features systematic layout with parallel drifts, along or across the orebody. In the wide orebody, sublevel drifts start from the footwall drive, to continue across, reaching the hanging wall. In the orebody lesser width, sublevel drifts are branched off in both directions, from a centre crosscut drive. ——————————————————————————————————Author: Partha Das Sharma, E. mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ 3 Sublevel caving techniqueSimplicity and low cost are the essence Development volume to prepare sublevel caving is extensive, compared to other mining methods. However, development is mainly drifting to prepare sublevels. Drifting is a simple and routine job for the mechanised mine. Development of sublevels is done efficiently, in an environment of multiple faces on one sublevel available to drill rigs and loaders. A ramp connection is needed to connect different sublevels, and communicate with main transport routes. Ore passes are also required, at strategically locations along sublevels, for LHD-loaders to dump ore from sublevels, to be collected and transported on the haulage level below. —————————————————————————– ————————Author: Partha Das Sharma, E. mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ 4 Sublevel caving techniqueSimplicity and low cost are the essence Lon ghole rigs drill the ore section above the drift, in a fan spread pattern. Longhole drilling is a procedure which is done independent of other jobs, often well ahead of charging. Thus, drilling and charging-blasting longholes can be timed to suit the mine’s production schedules. Blasting on each sublevel starts at the hanging wall, mining then retreats toward the footwall. Miners aim the cave to follow an approximately straight front, and adjacent drifts mined at similar pace. A section through the cave to show upper sublevels one step ahead of sublevels underneath. Blasting the longhole fan breaks the ore volume covered by the fan-pattern. As the cave is filled with fractured rock, most of the fresh ore remains in the cave, while some caves into the drift opening. Mucking out with LHD-loaders creates a cave pattern of ore and waste from above. Loading continues until the operator decides that waste dilution is too high, and stops the mucking, and transfers to a nearby drift heading with a fresh cave. In the meantime, the empty heading is occupied by the charging team, to charge next ring of longholes. Ore handling involves mucking out at the cave, transport on sublevels and dumping into ore passes. Waste dilution and ore losses are drawbacks for sublevel caving. Waste dilution varies between 15 and 40%, ore losses from 15 % to 25 %, depending on local conditions. Dilution is of less influence for orebodies with diffuse boundaries, where the host rock contains low grades minerals. Parameters directly influence flow behaviour have been found to include the geometry of the extraction layout and drives, sublevel height, blast ring design, material characteristics of the blasted and waste material, and draw control methodology. In most of the sublevel caving system blasting parameters dominate in association with recovery when compared to drawpoint and geological parameters. Generally, sublevel caving method employs use of fan drilling using long and smalldiameter holes, between sublevels or drill drifts to undercut and blast the ore-zone. An initial slot is developed at the wallrock, and vertical uphole fans are rilled in a diamond pattern from sublevel in sequence. Generally, eight holes, inclined 80 to 85 degrees toward the slot, are drilled. Hole diameter average 51 mm, Burden and Spacing vary from 1. 2 to 1. 8 m and 1. 5 to 1. 8 m respectively. Blasting is performed against broken waste rock as wall rock caves. Generally, specific-charge range from 0. 3 to 0. 4 kg/ton. 4. Below are some salient features of Sublevel caving technique: Application * Weak walls and strong ore preferred though weak ore can be mined too. * Steep dip: A vertical dip is best, while dip60 is fine too. Possibility of loss of ore in non-vertical steep dips Considerable loss of reserves in flat dips * Preferably, the ore and the rock should be easily separable * Surface should be amenable to caving (not an inhabited or the watershed area etc) ——————————————————————————————————Author: Partha Das Sharma, E. mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ 5 Sublevel caving techniqueSimplicity and low cost are the essence Development * Significant. Almost 20% of the ore is mine during development * Sublevels are established generally at 7. -12. 2 m vertical intervals and about 10. 7 m horizontal intervals The vertical interval is dependent on the drilling accuracy and the dip of the orebody The horizontal and vertical spacings affect the eccentricity of the cave * The size and shape of the production drift affects the draw Drift should be as wide as possible Should give good support to the back and the brows If the back is arched, the draw is mostly at the center and none on the sides If the back has to be arched for ground support, the drifts should be closer Ore remnants left behind (due to being out of reach of LHD’s) increase with height. Therefore, drift height should be as small as possible (usually about 3-3. 2 m). * Slot raises are driven at the hanging wall end of the production drift all the way up to the next level * Haulage levels driven in waste In wide orebodies, transverse layouts may be used (ore widths should be 12-15 m) Here, the production drifts are perpendicular to the strike Recovery better than longitudinal layouts Haulage drift in waste (footwall), about 9 m from ore contact. This distance is maintained so that blasting does not occur too close to it. Diamond drilling is done to obtain ore boundaries so that the haulage drift is neither too close nor too far away. o o * Ramps may be driven at 15 -18 , to production levels to provide access * Long, fan holes drilled 70-80 degrees forward (about 8 holes Production totaling 100 m in a ring) * Side holes, if drilled, should be steeper than 70 degree Side holes reduce length of holes driven up from the level below If flat holes drilled to the sides, however, the blasted material from the side holes cannot be extracted from the working level. Therefore, the neighboring fan hole blasted material does not get enough room to expand * Brows should be supported if necessary If brows collapse, ore floods the drift and covers some rings Also, the loader has problems loading as the ore does not stack high If brows are uneven, the ore funnels down the high spots ——————————————————————————————————- 6 Author: Partha Das Sharma, E. mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ Sublevel caving techniqueSimplicity and low cost are the essence If sloughing or high brows are noticed from development, it may be decided to blast more than 2 rings just to advance through the area * If drilling is not accurate, a bridge/arch may be left in the stope Re-slotting may become necessary * Powder factor high as blasting is always against blasted muck (almost twice that of blasting against an open face) * LHD’s used for mucking * Good ventilation necessary as all working faces are dead ends * Productivity is quite high (about 36 ton/miner-shift) Comments * High dilution from caved waste. Ore losses occur as well since not all mined ore can be recovered. * Ore/waste flow cannot be predicted accurately prior to mining. * Probably the most economical when mining in weak strata * Development openings are not kept open for the entire life of mine. Once a level is extracted, the development openings are consumed. * Safe, since all mining activities are in small, protected openings. * High degree of mechanization possible. 5. Discussion on ore flow, drilling and blasting for efficient workings: * Fragmentation is of key importance to sublevel cave stope. Proper fragmentation of the ore column resulted in improved efficiency for the other mine operations and was critical to recovery. * Underground observations indicate that the draw-points must be wide enough to account for inconsistent blast results and provide regular flow. * The draw-point width determines the width and flow strength of the central channel which is important to achieving high recovery of the ring. * The middle holes of the ring are fired first and can make first use of the swell volume offered by the underlying sublevel drift. * The central holes are drilled subvertical, fairly parallel, and relatively close to one another. The result is a relatively high and uniform specific charge compared to the other holes in the round. Thus, one would expect the best, most uniform fragmentation. * The ore material in the central part of the round can make the best use of the effect of gravity in directing it to the drawpoint. * All of the material in the fan is drilled and blasted. * Because of the fan geometry, the amount of explosive/unit volume and hence the fragmentation varies throughout the fan. * The ore material in the centre part of the fan and the lower part of the fan has a much higher specific charge than that at the boundaries of the ring. Furthermore, the â€Å"cave† which lies in front of the blasted slice is an eclectic mixture of waste rock and ore remnants. * Its mobility varies with location and with time (it changes with the extraction geometry). —————————————————— ————————————————Author: Partha Das Sharma, E. mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ 7 Sublevel caving techniqueSimplicity and low cost are the essence * Finally, most rock materials upon being blasted would like to bulk (swell) of the order of 50%. In sublevel caving, it is the sublevel drift located at the bottom end of the fan which is the primary provider of swell space for the ore in the ring. * It has been observed that, increased amounts of oversize in the ring decreases recovery, proving the importance of proper fragmentation for sublevel cave operation. * Recoveries could be less than 60% if the ring is composed of 30% oversize. The oversize in the draw-point reduces the mobility of the ore, thus preventing high recovery. * Effective blast patterns also take into consideration the amount of benching. High powder factors are also required to reduce benching but may create excessive blast damage and over-break. * Practical solutions, such as, the blast pattern, blasthole size, primer sequencing, powder factor and degree of fragmentation are to be considered in order to be efficient. 6. Design parameters and some preliminary design rules – Design parameters in sublevel caving are largely a function of caving mechanics, the branch of rock mechanics related to the breakage and collapse of consolidated materials in place and their flow downward by gravity. Although, the ore has to be drilled and blasted, the overlying rock comprising capping or hanging wall is undercut and caves. Extremely careful controls must be exercised in drawing the ore to avoid excessive dilution. Draw control is the practice of regulating the withdrawal of ore in the sublevel crosscuts so as to optimize the economics of draw. Preliminary design rules: * Sublevel drift size (width (Wd) and height (Hd): determined based on equipment. * Sublevel interval (HS): the theoretical maximum value is based on the ability to drill long, straight holes. This, in turn, is based on the hole diameter (D). The actual limit is based on recovery and dilution considerations which are due to managing ore/waste pulsation. * Hole diameter (D): based on the available drilling equipment and the ability to charge long holes. * Spacing of the sublevel drifts (Sd): Sd = (2. 4 to 2. 7) Wd * Ring spacing (Burden B): Based upon the damage radius (Rd): B = 2 Rd Where: Rd/rh = 20 ( Peexp/PeANFO)? ( 2. 65/? rock)? ? Rd = damage radius (m); rh = hole radius (m); Peexp = explosion pressure for the explosive; PeANFO = explosion pressure for ANFO = 1600 MPa; ? ock = rock density (g/cm3); 2. 65 = density of typical rock (g/cm3). * Hole toe spacing (ST): based upon the burden ST = 1. 3 B. * Spacing for parallel holes (SP): based upon the burden SP = B. * Front inclination: 70–80 degrees (forward). Example: If it is assumed that: D = 115 mm; Drift dimensions: 7 m wide by 5 m high; Explosive: emulsion (Pe Exp = 3900 MPa); Rock density = 4. 6 g/cm3; Suble vel interval: 25 m based on drilling ability and control of pulsation. ——————————————————————————————————Author: Partha Das Sharma, E. ail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ 8 Sublevel caving techniqueSimplicity and low cost are the essence One finds that the remaining dimensions are: Sublevel drift spacing: 17–19 m; Burden: 2. 7 m; Toe spacing (fanned): 3. 5 m; Toe spacing (parallel): 3 m; Front inclination: 80 degree selected. 7. Experience from LKAB, Sweden – Sub-level caving (SLC) is an important mass mining method, used at LKAB. The caved rock or debris at the SLC interface reduces the fragmentation and the swelling of the blasted ring and it dissipates the explosive energy. These phenomena may immobilize the blasted ring, causing ore losses. There are two major factors that influence the mobilization of the blasted ring, fragmentation and swelling of the blasted material. The caving process is influenced by also the stiffness of the waste rock, which is dependent in some way by the compaction that the blast ring contributes to. By using the acoustic impedance between the blasted material and the confining debris, a relationship for both fragmentation and compaction have been found depending on material, specific charge and physical properties of the debris. Regression analysis has been used for both tasks, where the two statistical hypotheses clearly have good agreement with actual data i. e. the prediction models can forecast both the fragmentation and compaction for this set-up with reasonable accuracy The results can be comparable with confined blasting in large scale, this both that it have representative design parameters that fulfil in many ways the scaling laws and the second is that it can be linked to other comparisons between large-scale and small-scale, where the similarities have been shown. LKAB’s Malmberget – The Malmberget mine consists of about 20 orebodies, of which ten are currently mined. Most of the deposit consists of magnetite ore, but non-magnetic hematite also occurs. The present main level of the Malmberget mine is at a depth of 1000 meters. About 14 Mt of crude ore is extracted from the orebodies each year. Development – The first stage of mining is drift development. A drift is a tunnel that is driven into the rock. Development involves construction of new areas of the mine where ore can be extracted. A development project begins with construction documents prepared by the mine planning department. Each year, the mine planning department orders development work on the basis of the forecast demand for products as well as current knowledge of the status of the orebody. A development drift goes right through the orebody. Drifts are driven with electrichydraulic drill rigs. For each charge, as many as 60 holes are drilled. Each hole is about 5 meters deep. When all the holes are drilled, they are charged with explosives. The charge is blasted at night. The loose ore is then hauled out by a front loader. This procedure is repeated until the entire development drift has been driven. The drifts can be up to 80 meters long. If necessary, the walls and ceiling of the drift are reinforced with rock bolts and/or shotcrete. When development is complete, i. e. , when several drifts have been driven in the same area, the next stage of mining can begin; namely, production drilling. ——————————————————————————————————Author: Partha Das Sharma, E. mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. ordpress. com/ 9 Sublevel caving techniqueSimplicity and low cost are the essence Production drilling – Slices of ore are drilled up with remote-controlled production drilling rigs. From their control rooms, the operators (drillers) operate sever al drill rigs out in the production areas via remote control. The rig drills upwards into the ore, forming fan-shaped patterns of holes. There are 10 drill holes in each series. They are normally about 40-45 meters deep. The holes are straight, so that subsequent charging with explosive and blasting can be done efficiently. When a pattern of holes has been drilled, the rig is moved back three meters, then drilling of the next pattern begins. About 20 of these patterns will be drilled in an 80-meter drift. Once drilling is completed in the entire drift, the holes can charged with explosive. Blasting – A robot injects explosive into the drill holes in one pattern. The explosive is manufactured by LKAB’s own explosives company. Blasting is done every night. Each round brings down about 10,000 tonnes of ore. When the blast has been ventilated, loading with wheeled loaders can begin. Then, the next pattern is charged, etc. The procedure is repeated until the entire drift has been mined out. 8. Conclusion – Caving methods have become the underground bulk mining methods of choice and expected to continue in the foreseeable future. The growing popularity of caving methods around the world is largely due to the very low production cost and the intrinsic safety associated with this mining approach. It is often the only viable mining method for some of the lower grade massive orebodies that are becoming too deep for open pit mining. Caving of strong rock masses has ecome accepted practice even though there are still some challenges to be resolved. Strategically, most medium and large mining companies are operating or planning to operate a caving mine. Codelco’s El Teniente mine in Chile and the LKAB Kiruna Mine in Sweden are among the largest and most famous caving operations in the world. Australia’s leading caving operations include Rio Tintoâ₠¬â„¢s Northparkes mines, BHP Billiton Nickel West’s Perseverance Mine and Newcrest’s Telfer and Ridgeway gold mines. References: * Kvapil, R , â€Å"Subleve l Caving†, Underground Mining Methods Handbook. â€Å"d Edit ion, Vol. 2. , H. L. Hartman, ed. , SME. Littleton, CO, 1992, p. 1789. * Geddes, P. J. , â€Å"Swedish Drilling and Blasting Practice†, Trans. Int. Min. Metail. , 1 986, Sect. A. , V. 95, p. 204-207. * Alatalo. R. , Heden, H. and Ronnback, L. , ‘large Scale Sublevel Caving in LKAB Malmberget Mine†, Proc. Int. Sym. Large Scale Underground hfining, Nov. 1985, V. 7. Lulea, p. 139- 145. * Baase, R. A. , Diment, W. D. , and Petrina, A. J. , â€Å"Sublevel Caving at Craigmont Mines Ltd. â€Å", Underground Mining Methods Handbook, W. A. Hustrulid, ed.. SME, New York, 1982, p. 898. Chatterjee, P. K. , Just, G. D. , and Ham, G. I.. ‘Sub-level caving simulation of 3000 pillar-recovery operation at Mount Isa mine. Australia† . Tram inst . min. Met.. Sect. A. , V. 88.. Oct. 1979, p. Al47-Al55. ——————————————————————————————————- 10 Author: Partha Das Sharma, E. mail: sharmapd1@gmail. com, Blog/Website: http://miningandblasting. wordpress. com/ Sublevel caving techniqueSimplicity and low cost are the essence * Cox, LA. , â€Å"Latest Developments and Draw Control in Sublevel Caving†, Trans. Int. Min Metall. , 1967, V. 76, p. A149-159. * Hustrulid. A. , â€Å"Sublevel Cave Mining at LKAB Kinina Mine†. iNCO presentation Aug. 1995. * Bull, G. and Page, C. H. (2000) Sublevel caving – today’s dependable low-cost ‘ore factory’, in Proceedings MassMin 2000, G. Chitombo (ed), 29 October to 2 November 2000, Brisbane, Australia, Australasian Institute of Mining and Metallurgy, Melbourne, pp. 537–556. * Hustrulid, W. and Kvapil, R. (2008) Sublevel Caving – past and future, in Proceedings 5th International Conference and Exhibition on Mass Mining, MassMin 2008, H. Schunnesson and How to cite Sub Level Caving, Papers

The Declaration of Sentiments and Resolutions Essay Example

The Declaration of Sentiments and Resolutions Paper They Say/l Say The Declaration of Sentiments and Resolutions, written by Elizabeth Caddy Stanton, in the mid-end nineteenth century perpetuates her thoughts on womans rights then, and how they should be. Stations ideas and opinions on The Declaration of Independence beliefs of not only woman hut also men. The current rights that women have, reflect, Stations concepts in the document that was written 165 years ago, It is evident that the present rights women have are merely the effects caused by the impact of Stations piece. Stanton uses hyperboles and an abundant amount of sarcasm in her writing unlike the current declarations that are much more logical rather than ethical. Stanton states, He has made her, if married, in the eyes of the law, civilly dead. (Stanton 359) Women at that point in time were not worth anything once married. If they were much richer than the man they marry it would not matter, because the moment she is legally married ,all of her assets or now her husbands. However, as for today, women still can keep their riches and also lawfully own a part of their husbands. We will write a custom essay sample on The Declaration of Sentiments and Resolutions specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on The Declaration of Sentiments and Resolutions specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on The Declaration of Sentiments and Resolutions specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Now, if the marriage were to lead to divorce except on few occasions, everything Is split equally between women and men. In Stations piece she manipulates the actual declaration of independence from that time period and makes it into her own. She wrote what she thought that it should say and if you looked at our current declaration, it is practically identical. Stanton writes, Me hold these truths to be self evident: that all men and women are created equal; that they are endowed by their Creator with certain inalienable rights; that among these are life, liberty, and the pursuit of peppiness;.. (Stanton 358) At the time Stanton wrote this piece we were not completely equal. However, now we do have those rights equal to men, and our current declaration of independence has almost the exact line that Stanton writes in her piece, Even though most legal documents tend to be more logos than anything, Stanton approaches the matter in a more ethical way that shows the audience what is truly morally correct. She uses this technique of approaching the readers in this way several times in her work. Poor example; Stanton writes, He has Ethel from her rights which are given to the most, ignorant and degraded men- both natives and foreigners. (Stagnating) She uses this technique to appeal to the emotions of the readers so that they see what is truly wrong in how the women are getting treated. Unlike are current political documents, she uses ethical issues such as men that are not even a part of her country are getting more rights than she is. Also Stanton later Mites, He has denied her the facilities for obtaining a thorough education, all colleges being closed against her. Stanton 360) Stanton acknowledges the fact that they have freedom and should be treated equally, yet they are not getting the same chances and opportunities men had received. When approaching the audience is the ethical way that she does it effects the readers in a much stronger way. If Stanton had not shown the moral issues rather than just the logic issues oven might not have the same rights they have today. The reason for that is simply because without seeing the morally wrong parts of the subject, history will continue because the logic Of the issue shows that everything is working just fine. The present laws and principles do not reflect as many ethical issues now as Stations, simply because What used to be ethical when Stanton had wrote her piece, became logical over time since it is natural and it is what everyone has became accustomed to. Stanton clearly states in her writing several times how the women at her point in time do not have a voice in many ways and are unknown yet this is her country too and not just men, One clear example is when Stanton states, He has compelled her to submit to laws, in the formation of which she had no ice. (Stanton 359) Stanton uses countless examples about women not having a voice in what they say or do and that was supposed to be called their freedom. In todays present rights it has became closer to the equality between women and men. In the fact that women have the same rights as men and the freedoms men have are the same freedoms women now have, Stanton also writes, As a teacher of theology, medicine, or law, she is not known. (Stanton 360) Once again Stanton is just giving another example of women not getting to have a ice, when she believes that they should get have the same freedoms as men. In conclusion to the differences between the now and then is actually quite repetitive and reflective. The current rights women acquire, possibly would not be What they are today if it were not for the opinions and ideas Of Stanton manipulating the thoughts of the country. What Stanton said in her piece versus to the present rights women hue show many differences as far as putting them into action. However, the ideas that Stanton had hoped for are not far from the current principles for women we have and follow.