Thursday, January 23, 2020
Edsons and Carlsons Raiders Essay -- essays research papers fc
OUTLINE I. Introduction. The Marine Corps today has developed itself into an elite fighting force based on strong naval traditions. The basic Marine is amphibious, which means that the warrior is capable of fighting on land and sea. The idea of an amphibious landing was developed through the training of the Marine Raider Battalions, which was tested and perfected in combat. Although there were two Raider Commanders with very different views on how to prepare their marines, Evans Carlson and Merritt Edson were responsible for training lightly armed Marines for amphibious assaults. II. Body. 1. Historical Background a.     Forming of the Marine Raiders b.     Evans Carlson, Commanding Officer, 2nd Raider Battalion c.     Merritt Edson, Commanding Officer, 1st Raider Battalion 2. Training a.     Carlson’s Training b.     Edson’s Training c.     The Amphibious Raid d.     Close-In Fighting e.     Combatative Conditioning f.     State of Combat Readiness 3. Significant Battles a.     Makin Island, 2nd Raider Battalion b.     Guadalcanal, 1st Raider Battalion c.     Guadalcanal, 2nd Raider Battalion d.     Forming of the 3rd and 4th Raider Battalions 4.     Summary a.     Strengths of the Raider Battalions b.     Weaknesses of the Raider Battalions c.     Dissolving of the Raider Battalions into the infantry units. III. Conclusion. The Marine Raider Battalions developed an elite fighting force within an elite service. There still exist today the elite units of the Marine Corps, such as the Force Reconnaissance Battalions and the Special Operation Capable Units, but the Raider Battalions were the first specialist of the amphibious doctrines. Although the amphibious landing has been preformed throughout the ages since the invention of the water-bearing vessels, the Marine Raider Battalions tested and perfected this combat operation. Although the two Raider Commanders had very different views on how to prepare their marine... ...s. (New York, New York:HarperCollins, 1997) Alexander, Joseph H. Storm Landings: Epic Amphibious Battles in the Central Pacific. (Annapolis,Maryland: Naval Institute, 1997) Alexander, Joseph H. Utmost Savagery: The Three Days of Tarawa. (Annapolis, Maryland:Naval Institute Press, 1995) Asprey, Robert B. Semper Fidelis: The United Sates Marines In World War II. (New York, New York:W.W. Norton & Company, 1967) Griffith, Samuel B. The Battle for Guadalcanal. (Philadelphia, Pennsyvania:J.B. Lippincott Company, 1963) Hoffman, John T. From Makin to Bougainville: Marine Raiders In the Pacific War. (Washington, District of Columbia: U.S. Government Printing Office, 1995) Hoffman, John T. Once a Legend: â€Å"Red Mike†Edson of the Marine Raiders. (Novato, California:Presido, 1994) Hoyt, Edwin P. The Marine Raiders. (New York, New York: Simon & Schuster, 1989) Isely, Jeter A. and Philip A. Crowl. The U.S. Marines and Amphibious War: Its Theory, and Its Practice in the Pacific. (Princeton, New Jersey:Princeton University, 1951) Marine Corps Monographs, First Greenwood Reprint. The Guadalcanal Campaign. (New York, New York:Greenwood Press, 1969)
Wednesday, January 15, 2020
Reflection on Today’s Society Essay
Online education has evolved over the last ten years as much as the cell phone. Given this, what have been some of the major improvements and changes in the digital classroom? Online education has come a very long way to where we were 10 years ago. Now you can achieve your whole degree online without ever going to a classroom. Online education now days let’s everyone work at their own pace. This is a very good system for the people that have a full-time job and have a family to take care of when they get off work. Once your able to get all your work and family time done you are able to sit in front of your computer and work as much as you want on your school work. Online education has helped so many people achieve their goal of receiving their degree that weren’t able to do it due to â€Å"not having time†. Cyber bullying is a serious issue in today’s schools and business. If everyone adopted and educated people on netiquette guidelines would this issue be solved? Explain. Cyber bullying is and has been an issue now days due to the technology and the fact that kids are more on computers in social website such as Facebook, Twitter, Myspace, etc. If more people were educated on cyber bullying and the effects that it has on the people being bullied, it would make a difference and there will be less cyber bullying. Too many people’s self-esteem are lowered and even lowered so much it will eventually lead to a suicide. It is sad that somebody could have an effect on somebody to drive them to take their own life. Cyber bullying needs to be educated to all people of all ages. It will make a big difference and make people open their eyes and realize how severe the situation can be. If I post a poem on my Facebook site and someone cuts and pastes it on their site is that a case for stealing my intellectual property? If you do post a poem or anything on Facebook that become visible to everyone out there. Even though you have created a poem that will not stop anybody from taking it and using it as their own. I can understand if you have copyrights to your work but if you do not than anybody is able to use it without any consequences. Granted it is morally wrong to use anybody else’s work without their permission or not giving them the credit they deserve. What that person did was wrong by taking somebody else’s work, but you at the same time need to be aware and safe about what you post on Facebook. To answer the question, Yes, it would be consider stealing intellectual property but like I said if there are no copyright’s than there is nothing you can do about it.
Tuesday, January 7, 2020
Understanding the Basics of Prepegs
Prepreg composite materials are becoming increasingly common in the composite industry due to their ease of use, consistent properties, and high-quality surface finish. However, there is much to understand about prepregs prior to committing to using this material. Prepreg The term prepreg is actually an abbreviation for the phrase pre-impregnated. A prepreg is an FRP reinforcement that is pre-impregnated with a resin. Most often, the resin is an epoxy resin, however other types of resins can be used, including the majority of thermoset and thermoplastic resins. Although both are technically prepregs, thermoset and thermoplastic prepregs are dramatically different. Thermoplastic Prepregs Thermoplastic prepregs are composite reinforcements (fiberglass, carbon fiber, aramid, etc.) that are pre-impregnated with thermoplastic resin. Common resins for thermoplastic prepregs include PP, PET, PE, PPS, and PEEK. Thermoplastic prepregs can be provided in unidirectional tape, or in fabrics that are woven or stitched. The primary difference between thermoset and thermoplastic prepreg is that thermoplastic prepregs are stable at room temperature, and generally, do not have a shelf life. This is a direct result of the differences between thermoset and thermoplastic resins. Thermoset Prepregs More commonly used in prepreg composite manufacturing is thermoset prepregs. The primary resin matrix used is epoxy. Other thermoset resins are made into prepregs including BMI and phenolic resins. With a thermoset prepreg, the thermosetting resin starts as a liquid and fully impregnates the fiber reinforcement. Excess resin is precisely removed from the reinforcement. Meanwhile, the epoxy resin undergoes partial curing, changing the state of the resin from a liquid to a solid. This is known as the B-stage. In the B-stage, the resin is partially cured, and usually tacky. When the resin is brought up to an elevated temperature, it often returns briefly to a liquid state prior to hardening completely. Once cured, the thermoset resin which was in the b-stage is now fully cross-linked. Advantages of Prepregs Perhaps the greatest advantage of using prepregs is their ease of use. For example, say one is interested in manufacturing a flat panel out of carbon fiber and epoxy resin. If they were to use liquid resin in a closed molding or open molding process, they would be required to obtain a fabric, the epoxy resin, and the hardener for the epoxy. Most epoxy hardeners are considered hazardous, and dealing with resins in a liquid state can be messy. With an epoxy prepreg, only one item needs to be ordered. An epoxy prepreg comes on a roll and has the desired amount of both resin and hardener already impregnated in the fabric. Most thermoset prepregs come with a backing film on both sides of the fabric to protect it during transit and preparations. The prepreg is then cut to the desired shape, the backing is peeled off, and the prepreg is then laid into the mold or tool. Both heat and pressure are then applied for the specified amount of time. Some of the most common types of prepregs take an hour to cure, at around 250 degrees F, but different systems are available at both lower and higher cure temperatures and times. Disadvantages of Prepregs Shelf Life: Since the epoxy is in a B-stage, it is required to be stored either refrigerated or frozen prior to use. Additionally, the overall shelf life can be low.Cost Prohibitive: When manufacturing composites through a process such as pultrusion or vacuum infusion, the raw fiber, and resin are combined on-site. When using prepregs, the raw material must first be prepregged. This is most often done off-site at a specialized company that focuses on prepregs. This added step in the manufacturing chain can add increased cost, and in some instances close to double the material cost.
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