Saturday, November 16, 2019

Sports textile Essay Example for Free

Sports textile Essay Sports textile is one of the branches of technical textiles. Now a day’s sophisticated technology are used in technical textile to produce sports wear. Hi-tech textiles in sport are 1 S. NO TOPIC PAGE NO 1 Introduction 2 2 Objective 3 3 Properties/Function required for sports wear 3 3. 1. Desirable attributes of functional sports and leisure wear 5 3. 2. Properties of sports textiles 6 4 Textile material and fabric structure for sports wear 7 4. 1. Development of fibers 7 4. 2. High-performance fibers 8 4. 3. Special fibers used 10 4. 4. Types of fabrics 11 4. 5. Layered fabrics 13 5 Market size for sports wear 14. 5. 1. The key impediments to the growth of sporttech product 15 6 Application/Uses of sportswear 16 7 Conclusion 16 8 Bibliography 17 nothing new. In twenty first century, clothing is an important issue for general consumer, active athletes and for those who practice sports just for fitness in their leisure time. The sports fabrics are generally ultra-breathable and have high heat and moisture management properties, light weight, fast drying properties and feature elasticity properties. These fabrics also have superior strength and durability. The latest sports textile materials are much more function for fulfilling  specific needs in different sports activities. The sports such are i. Winter sports ii. Summer sports iii. Outdoor games iv. Indoor games v. Football vi. Cricket vii. Climbing viii. Cycling ix. Flying and sailing sports x. Athletics xi. Other sports The people are paying more attention to sports activity and that the market for sportswear continues to expand. So the consumers seem to be prepared to spend considerable amounts of money on sportswear and other functional fabrics, which have made the market attractive to many producers. In sports, previously a traditionalapparel textilewas used. For that theplayer hasto face so many problems such as: i. Sweating – which stick the fabric with body ii. Feeling hot during run iii. Improper stretch ability iv. Extra weight of the fabric v. Give protection to body skin during fall on the ground vi. Inadequate fabric for fluid resistance for swimmer vii. Windproof, waterproof fabric for sailor 2 viii. Light weight shoe with proper strength air circulation ix. High tenacity resistance to abrasion for the skiwear uniform x. Improper gripping of the shoes during run etc. Therefore,technologyhastodevelopfortheaboveshortcomings. Andforthattheresearch activity took place; and the country who were in the foremost are: Japan, Sweden, Spain and United State. To bridge the gap and promote the partnership and collaboration between the stakeholders government-end users. 3. PROPERTIES/FUNCTIONS REQUIRED FOR SPORTSWEAR Many different aspects have to be considered when designing clothing for a particular sport. 1. The protection/safety functions to protect wearers from adverse weather (wind, rain and snow, etc). 2. The comfort function which gives wear comfort (thermo-physiological comfort, skin sensorial comfort, body movement comfort) to wearers, 3. The exercise function to assist positively improvement of athletic records and attainment of one’s target, 4. Aesthetic appeal and high fashion ability. In order to meet such requirements, waterproof/moisture permeable fabrics, perspiration absorbing/ fast drying fabrics, warmth retentive fabrics, stretchable fabrics, etc. have been developed. From sensitivity or aesthetics point of view softness, surface texture, handle, luster, colour comfort are important factors. 3 5. For active sportswear requires super lightweight, low fluid resistance, super high tenacity stretchablility. For those who are seeking comfort healthy pursuits critical features include thermal regulation, UV resistance, sweat absorption fast drying, vapour permeability. 6. Moisture management is one of the key performance criteria in todays apparel industry. It is defined as the ability of a garment to transport moisture away from the skin to the garments outer surface. This action prevents perspiration from remaining next to the skin. In hot conditions, trapped moisture may heat up and lead to fatigue or diminished performance. In cold conditions, trapped moisture will drop in temperature and cause chilling and hypothermia. Excess moisture may also cause the garment to become heavy, as well as cause damage to the skin from chafing. Table no. 1 Function of sports textiles. S. No Function Description 1. Heat transport performances The sport fabrics require to maintain body temperature during various sports activities. The heat transport properties of fabric make possible to feel the sportsman cooler in summer and warmer in winter. The fibrous material, bulk entrapped air within the fabric affects the heat transport properties of the sportswear. 2 Moisture transport performance By changing the cross sections of the fiber and by using special chemicals; fabrics are made which have high moisture transport properties. Such fabric keeps the body dry by keeping moisture away from body surface in vapor and/or liquid form. 3 Anti-static performances Sportswear fabrics have a very high electrical conductivity, so they can dissipate electrical charge. 4 4 Antimicrobial performances Keeping a normal level of bacteria on the skin offers a high level of comfort and personal hygiene, especially during athletic activities. 5 Ultraviolet protection Sports fabrics can remove UV-A and UV-B rays that are dangerous to the skin, and guarantees an improved level of defense compared to the majority general natural and man-made fibres. 3. 1. Desirable attributes of functional sports and leisurewear: a. Optimum heat and moisture regulation. b. Rapid moisture absorption and conveyance capacity. c. Good air and water permeability d. Prevention of a long term feeling of dampness. e. Low water absorption of the layer of clothing facing the skin. f. Quick drying fabric to prevent catching cold. g. Pleasant to skin, soft, non-abrasive and non-chafing. h. Dimensionally stable even when wet. i. Durable j. Lightweight k. Soft and pleasant touch l. Easy care m. Smart and functional design Table no: 2 Required functions on the main sportswear S. No. Sportswear Required Function 1. Shirts for tennis,volleyball, golf, football, rugby, base ball uniform, tracksuits etc. Sweat absorption, fast drying, cooling. 2. Skiwear, wind breakers, rain wear Vapor permeability, water proofing 3. Skiwear, wind breakers, tracksuits Sunlight absorbing and thermal retention 5 4. Swimming race and skating costume, ski jump and downhill skiing suits, cycling costumes Low fluid resistance (for water and air) 5. Swimwear, leotards, skating costume. Stretch ability, opacity 6. Skiwear, snowboard wear, football and base ball uniform High tenacity, heat melt resistance to abrasion 3. 2. Properties of sports textiles: Sports textile must have comport ability, easy to wear, easy handling. Sports textiles fabrics have a very high electrical conductivity, so they can permit the effectual dissipation of electrical charge. It should be light as best as possible. Fabric filaments are made highly effecting in moisture management thus they can wick the moisture as known as sweat away from the body keeps body dry. Sports textile should have good perspiration fastness.As this sports fabric has a special property well known as heat conductivity make possible to feel the user cooler in summer warmer in winter. Garments manufactured from sports textiles fabrics, keeps the normal stability of body comfort, because these fabrics are ultra-breathable, fast drying and possess outstanding moisture managing properties, which rapidly wick moisture away from the body. These garments are also very less in weight feature elasticity properties, which provides immense comfort and independence of movement.Keeping a normal level of bacteria on the skin offers a high level of comfort and personal hygiene, especially during athletic activities. Sports textiles fabrics remove UVA and UVB rays that are dangerous to the skin, and guarantees an improved level of defense compared to the majority general natural and man-made fibers. It also provides superior strength and durability. The athletics the leisure activities for their better performance in the sports. 4. TEXTILE MATERIAL AND FABRIC STRUCTURE FOR SPORTSWEAR: 6 It is not possible to achieve all required properties for sportswear in a simple structure of any single fiber. The right type of fiber should be in the right place. The behavior of the fabric is mainly depending on its base fibers properties. The most important properties are: fiber type;weave construction; weight or thickness of the material and presence of chemical treatments. 4. 1. Development of fibers: The evolution of fiber developments has gone through the phases of conventional fibers, highly functional fibers and high-performance fibers. Polyester is the single most common fiber used for sportswear and active wear. Other fibers suitable for active wear are polyamide, polypropylene, acrylics and elastanes. Wool and cotton fibers are still finding applications in leisurewear. Synthetic fibers can either be modified during manufacture, e. g. by producing  hollow fibers and fibers with irregular cross-section, or be optimally blended with natural fibers to improve their thermo-physiological and sensory properties. Synthetic fibers with improved UV resistance and having anti-microbial properties are also commercially available for use in sportswear. Improved fiber spinning techniques in melt spinning, wet spinning, dry spinning as well as new techniques such as gel spinning, bi-component spinning and microfiber spinning, have all made it possible to produce fibers, yarns and fabrics with unique performance characteristics suitable for use in sportswear and sports goods. New technologies for producing microfibers have also contributed towards production of high-tech sportswear. By using the conjugate spinning technique, many different types of sophisticated fibers with various functions have been commercially produced which has resulted in fabrics having improved mechanical, physical, chemical and biological functions. The technique of producing sheath/core melt spun conjugate fibers has been commercially exploited for producing added-value fibers. Unitika produced the first heat-degenerating conjugate fiber with a core containing zirconium carbide (ZrC). S0ince ZrC absorbs sunlight (visible and near-infrared radiations) and emits far-infrared radiation, one feels warmer when one puts on a jacket made from such fibers. Other types of heat-generating fibers contain ceramic micro-particles. 4. 2. High-performance fibers: Today, a wide range of high-performance fibers is commercially available for technical and industrial applications. These types of fibers are used in sports protective wear/equipment 7 developed for impact protection and in textile reinforcement in sports products for different applications. Among the speciality fibers already established are the following. Aramidfibers: Figure no: 1 aramid fibers Figure no: 2 Gloves made from aramid  ± p-aramid fiber will provide high strength and ballistics.  ± m-aramid fiber will provide flame and heat resistance. Ultra-high tenacity polyethylene fibers (UHMWPE): Gel spun, ultra high molecular polyethylene fibers with extremely high specific strength and modulus, high chemical resistance and high abrasion resistance. Polyphenylene sulphide fibers (PPS): Crystalline thermoplastic fiber with mechanical properties similar to regular polyester fiber. Excellent heat and chemical resistance. 8 Polyetheretherketone fibers (PEEK): Crystalline thermoplastic fiber with high resistance to heat and to a wide range of chemicals. Novoloid (cured phenol-aldehyde) fibers: High flame resistance, non-melting with high resistance to acid, solvents, steam, chemicals and fuels. Good moisture regain and soft hand. PBO (p-phenylene-2,6-benzobisoxazole) fibers: The strength and modulus of this fiber exceed those of any known fibers. Table no: 3 Characteristics of High-performance fibers High-performance fibers Characteristics Glass fiber High resistance. Aramid Mechanical strength and high resistance to flame and heat. High tenacity polyethylene High mechanical strength, chemical  and abrasion resistance. Polyphenylene sulfide Excellent chemical and heat resistance. PBO(polybenzoxazole) High mechanical strength. . 4. 3. Special fibers used: †¢Hygra20 †¢Killat N23 Killat N from Kanebo Ltd is a nylon hollow filament. The hollow portion is about 33 per cent of the cross section of each filament due to which it gives good water absorbency and warmth retentive property. The manufacturing technology of Killat N is 9 very interesting. The yarn is spun as bicomponent filament yarn with soluble polyester copolymer as the core portion and nylon as the skin portion. Then by giving alkali weight  loss treatment the soluble polyester copolymer of the bicomponent filament will dissolve and a large hollow portion (exceeding 30 per cent of the cross section) will be created as shown is Figure 5. †¢Dacron 4-Channel Polyester a generic term for a high-performance four-channel fiber engineered to move moisture and speed the evaporation of perspiration. It is a superior fabric for wicking action, drying time, moisture absorption and transport. A high-performance, four-channel fiber engineered to move moisture and speed the evaporation of perspiration. It is a superior fabric, for wicking action, drying time,moisture absorption and transport. Lycra25 Figure no:3 Swimwear made by lycra Lycra, a truly synthetic fiber of long chain polymer composed of at least 85% segmented polyurethane, finds wide range of end uses such as swimwear, active sportswear, floor gymnastics because of its comfort and fit2O. Adding Lycra to a fabric gives it stretch and recovery, particularly in gymnastics and swimwear where body skin flexing and stretching are inevitable. Lycra T-9026 requires still effort for the same extensibility. Roica and Leofeel 10 Roica is a polyether type spandex made by dry spinning method and Leofeel is asoft nylon-66 yarn developed by Asahi Chemical. The combination of Roica and Leofeel in mixed knitted tricot fabric gives a soft touch and excellent stretch. It is mainly used in swim wear . 4. 4. Types of fabrics: A wide range of woven, knitted and nonwoven fabrics are commercially available for sportswear and normal wear. These fabrics differ in their structure such as entrapped air, pore shape and size, bulk and surface properties etc. which may affect the heat and moisture transmission characteristics of the fabrics. For sportswear, knitted fabrics are preferred as these fabrics have greater elasticity  and stretchability compared to woven fabrics, which provide unrestricted freedom of movement and transmission of body vapour to the next textile layer in the clothing system. With new combinations of fabrics and yarns, and with developments in fabric construction, knitted fabric appears to be the ideal base for active sportswear. Knitted garments are mainly worn next to the skin and therefore deserve particular attention.Entrant Dermizax EV is a lightweight fabric having a feather smooth texture with excellent waterproof/moisture permeability and durable water repellency such as 20,000 mm of water pressure resistance and moisture permeability of 30,000 g/m2/24 hrs. It is an excellent and original active sportswear fabric with globally top class water proof/moisture permeability, as well as excellently durable water repellency. Its action of waterproofing moisture permeability. fig no:4 Entrant Dermizax EV fiber †¢Entrant HB is a new generation fabric with hybrid structure that synergistically integrates the advantages offered by a coating (well-balanced moisture permeability) and lamination (high waterproofness). It has high resistance to water pressure and high 11 durability against repeated washings (80 points or higher after 20 wash cycles). Its main application is outdoor wear. Toray has developed H2OFF made up of polyester microfibre fabric with a unique high-density weave structure comprising millions of microcrimped fiber loops. It also feature superb and durable water repellency, superior breathability and wind-chill resistance and attractiveness with soft hand. †¢Naiva30: Unitika has developed Naiva fabric by combining the Naiva yarn with a nylon microfibre. Naiva is an Eval/nylon bicomponent filament yarn and Eval is nothing but a copolymer resin of ethylenevinylalcohol. Naiva yarn composition is 55% Eval (23% ethylene + 32% vinyl alcohol) and 45% nylon. In the Naiva fabrics there are many nylon micro loops on the surface, which are formed by making use of high thermal shrinkage property of Naiva yarn. Naiva fabric not only has good moisture permeability but also has some other positive features like lightweight, softness and has capability of secondary finishing. The fabric is very successfully used in mountaineering wear and other active sportswear. fig no:5 structure of Naiva 30. Field Sensor21: Field Sensor is a very popular high-performance fabric from Toray,  which employs a multilayer structure that not only absorbs perspiration quickly but also transports it up to the outer layer of fabric very rapidly using principle of capillary action. It is composed of coarser denier yarn on the inside surface (in direct contact with skin), and fine denier hydrophobic polyester yarn in a mesh construction on the outer surface to accelerate quick evaporation of sweat. COOLMAX: DuPont CoolMax is a high-performance fabric that can help the athletic performance of the people who wear it. CoolMax ® moves sweat away from the body to 12 the outer layer of the fabric, where it dries faster than any other fabric. In moisture management tests, garments made with CoolMax dried almost completely in 30 minutes. Cotton, by comparison, remained wet by nearly 50%. Better evaporation means you spend less energy to cool your body, which increases your performance and endurance. CoolMax fabrics are specially designed to provide not only superior moisture management, but also to enhance the wearers comfort. All of the benefits of CoolMax fabrics are permanently built right into the fiber, requiring no chemical treatments. 4. 5. Layered fabrics: Layered fabrics became common for active sportswear. The performance of layered fabric in thermophysiological regulation is better than single layer textile structure. Each layer has distinct function; the layer next to the skin is to wick away the perspiration rapidly to the outer layer, which absorbs and dissipates it rapidly to the atmosphere by evaporation. In doing so, it takes away some of the body heat and keeps the body cool. On the inside, a synthetic material with good moisture transfer properties, e. g. polyester, nylon, acrylic or polypropylene is used whereas on the outside, a material which is good absorber of moisture, e. g.cotton, wool, viscose rayon or their blends can be placed. The conductive inner layer transfers the liquid perspiration rapidly to the absorbent outer layer chiefly as a result of the capillary effect. The absorbent outside of the textile material functions as a buffer zone for excess perspiration. In another way of constructing a physiologically functional fabric is three-layer structure. The use of superfine or microfibre yarn enables production of dense fabrics leading to more effective capillary action, with better thermo-physiological regulation. 13 14 Cellulosic or other Hydrophilic Fibres. Fig no:6 Two layered fabric structure for active wear 15 16 Cellulosic or Hydrophilic fibres Polyester micro fibres Polyester or other wicking fiber Fig no:7 Three layered fabric structure for active wear 5. MARKET SIZE FOR SPORTS TEXTILES: The technical textiles usage in the Sportech segment is valued at Rs 2,632 crore in 2007-08. The sports footwear components account for around 85% of the total segment value followed by technical textiles usage in sports composites with around 11%share. The sports footwear components are valued at Rs 2,250 crore and are expected to grow at around 11% y- o-y over the next 5 years. The technical textiles usage in sports composites is valued at Rs 293 crore. Sport composites include inflatable balls (footballs, volleyball, basketballs, etc), cricket protective equipments and boxing equipments. Around 30% of the sports composites are exported. Artificial turfs are valued at Rs 26 crore and account for about 1% of the segment only. The artificial turfs are not manufactured in India and the demand is met through imports.The usage of technical textiles in parachute fabrics, sleeping bags and hot air balloon fabricsisestimatedasRs18. 4crorein2007-08whichisexpectedtoincreasetoRs28crore by 2012-13. The consumption of sail cloth in India is negligible. †¢Sports nets, high performance swimwear and tents account for the remaining technical textiles consumption in Sportech with market size of Rs 5 crore, Rs 0. 84 crore and Rs 39 crore respectively in 2007-08. India exports around 40% of its sports nets production and around 25% of its tents production. The usage of technical textiles in sports nets and tents is expected to increase to Rs 30 crore and Rs 49. 8 crore respectively by 2012-13. Overall, the usage of technical textiles in the Sportech segment is expected to increase 17 fromRs2,632crorein2007-08toaroundRs4,358croreby2012-13,growingata CAGRof just below 11%. Sportech segment of technical textiles is estimated to provide employment to 88,000 peopleofwhomnumberoftechnicalemployeesisestimatedat70,000andnumberof non-technical employees is estimated at 18,000.The sports footwear industry is expected to grow by at least 8 percent per annum and accordingly, the demand potential for sports shoes and the attendant requirement of fabrics would be as below Table no: 4 Market Potential for fabric requirement for sports wear Year Sports Shoes Requirement of fabric (million meters) Million Pairs Value(Rs. Crore) 2001-02 570 5100(1020). 105 2003-04 595 5950(1200) 120 2007-08 804 8040(1600) 140 Note: Figures in brackets indicate approximate value of technical textile shoe component 5. 1. The key impediments to the growth of Sporttech products:- Inadequate domestic demand The raw materials and machinery for products like Ballooning fabric and Artificial turfs is not available in India which render these products expensive as compared to other manufacturing countries Demand for products like parachute fabrics, tents, etc is driven primarily by the  defense sector onlySportech products are typically labour intensive, availability of skilled labour is a major impediment to growth Licenses and clearances required for products like Ballooning fabric are a major impediment as well. This interactive workshop on Sports Textile focuses on building bridges between the Users and Manufactures. It will provide thought leadership and strategic vision to the technical textile industry in general and Sports textile in particular. 6. APPLICATIONS/USES OF SPORTSWEAR: Sports textile has versatile use. Some uses of Sports Textile are given below: 18 i. Sports composites ii. Artificial turf iii. Ballooning fabrics iv. Parachute fabrics v. Sail cloth vi. Sports nets vii. Sports footwear viii. Tents for sports ix. Swimming costume x. Sleeping bags xi. Sports equipment xii. Cycling xiii. Golf xiv. Tennis xv. Mountaineering, xvi. Skiing, xvii. Cricket, etc. 7. CONCLUSIONS Modern peoples are paying more attention to sports activity. The use of sports fabric is increasing day by day in various sports and leisure activities. The consumers seem to be prepared to spend considerable amounts of money on sportswear and other functional fabrics. During designing the sportswear fabrics, the aspects which are considered: protection/safety functions to protect wearers from adverse weather, comfort functions which gives wear comfort (thermal, sensorial and body movement comfort), exercise function to enhance performance of athlete, and aesthetic appeal and high fashion ability. The required functions of sportswear fabrics differ in different situations such as type of sports, environmental conditions and level of activity etc. Sportswear developed by using special type of polymer, type of fibrous material, modifying the fiber/yarn/fabric structure, lamination,  finishing technology and manufacturing technology etc. The introduction of high functionality and comfort in the sportswear fabrics provide unlimited scope for sportswear fabrics. 19 8. BIBILIOGRAPHY: ?Development Active Sportswear Fabrics and Synthetic Fibre Producers, JTN, Dec. ,1983, ?Sports Textile/Sporttech | Properties of Sports Textile | Application/Uses of Sports Textile, http://textilelearner. blogspot. in/2012/03/sports-textilesporttech-properties-of. html Assessed on 24. 12. 2012 ?International Journal of IT, Engineering and Applied Sciences Research (IJIEASR) ISSN: 2319-4413 Volume 2, No.1, January 2013 ?i-Xplore International Research Journal Consortium www. irjcjournals. org ?Active Sportswear Fabrics ? Dr. Devanand Uttam, Assistant Professor, Punjab Technical University, Giani Zail Singh Campus, Bathinda, India ?FICCI Presents interactive workshop on sports textiles by Ministry of textiles. ?COOLMAX ® Performance Fabrics, 11495_CoolMaxSS_v3 2/25/04. ?Textiles in sports† by R. Shishoo ?An emergence of sport-tech in technical textile industry by M. Nithiyakumar,G. Thamotharam ?www. indiantextile journal. com ?www. fibre2fashion. com ?www. texmin. com ?www. design-technology. org/sportsshoes1. htm .

Thursday, November 14, 2019

enzemes potato hydrogen peroxide :: essays research papers

How the concentration of enzymes controls the breakdown of Hydrogen Peroxide? Aim- We are investigating the effect of changing the concentration of the enzyme catalase has on the rate of breaking down of Hydrogen Peroxide. Background Info- This experiment will involve some soft potato. Potato has a very high enzyme count, that ¡Ã‚ ¦s why we use it in this experiment. This enzyme is called catalase. It is used in our body to break down food and other things that we might digest. A catalase speeds up the rate of reactions. The enzymes are all protean molecules. We will also use Hydrogen Peroxide and washing up liquid. The catalase breaks down the Hydrogen Peroxide into oxygen and water. The more vigorous the reaction the more froth that it creates. The reaction in the experiment: Hydrogen peroxide „ ³ oxygen + water 2H2O2 „ ³ O2 + H2O The enzyme can be used around the body to help chemical reactions, it speeds them up! The enzyme breaks up larger molecules into smaller pieces. This is how the enzymes work below I have described some of the things that can affect how well it works. Fair test/ Factors- Temp- This can affect the movement of the particles. The higher the temp the faster the particles will move and the more collisions. If the temp of the Hydrogen Peroxide is too low the experiment will fail! High Temp- It gives them more energy so they move faster this means that they are likely to connect the substrate and the active site. The high temp also gives the particles kinetic energy. This means that the Hydrogen Peroxide will be broken down quicker. Best Temp- This is the hottest the enzyme can be heated without the active site changing (denaturing). If the active site changes then the reaction will no longer work. From our preliminary test we found out that the optimum temp is 25oc this is around room temp. PH- All enzymes have an optimum PH, the wrong PH can cause denaturing. The Ph can ¡Ã‚ ¦t be too acid or alkaline so keep it as near to 7 as possible. If the enzyme denatures then it is no use for breaking down the Hydrogen Peroxide. Concentration of H2O2- The higher the concentration the more collisions with the active site. This means there is an increased rate of reaction. Creating more froth so the concentration will have to be the same for each of the test tubes.

Monday, November 11, 2019

Project Management Essay

Project management is one of the most important and critical tool or technique, which defines the entire course of development of any kind of project. Project management works as an ignition for the chain reaction of the whole development cycle. It also helps to layout each and every step of the development cycle and defines the action plan to be followed during the risk-conditions. Not only this, project management methodologies help track down the success rate for a project and improve the understandability of the workforce. Conventionally, any project management approach revolves around the 5 basic processes involved in project management, named as: †¢ Initiation: This step determines the nature and scope of the project. All the basic elements of the project like requirements analysis and feasibility, review of current operations, goals are determined. It is the most crucial stage and if performed incorrectly, results in the failure of the whole project. †¢ Planning & design: This stage basically helps to plan time, cost, and resource during the course of the development. Risk planning is also performed to effectively tackle uncertainties. †¢ Executing consists of the activities used in the process to work in sync with the project plan so as to meet the deadlines of different milestones. †¢ Monitoring & control: These processes verify and validate the activities and their sequence and timelines with the project plan. The quality of activities is also considered here. †¢ Closing includes the formal acceptance of the product so developed. Administrative and other formal activities are performed to release the product to the end-user or client after thorough testing. Different project management approaches are designed for easily carrying out the different process in a planned way for accomplishing all the requirements. Each approach have key feature of its own which keeps the activities in sync with the project plan. Some project management approaches are: †¢ The traditional approach: This approach is the most basic approach in project management. It is quite similar to the waterfall model in software development services. All the five processes are executed in sequence, with the extension of recursive-ness of a few processes to support the development cycle. †¢ PRINCE2: It is a structured approach for project management introduced in 1996. It posses the  key feature of automatic control of any deviation observed against the project plan. Each specified process in this approach, has its key input and output with the associated activities to be performed and specified goals of those activities. Processes are divided into manageable stages and close monitoring of each stage results in an organized and controlled rolling out of activities. †¢ Lean Project-management: This approach to project management is based on the concept of lean-manufacturing. Lean-manufacturing is centered on the elimination of wastage in order to minimize the cost of production and hence improving the quality of the product. †¢ Event Chain methodology: It has a key feature of identifying and managing events and event chains which affects the schedule of the projects. This approach helps in handling the negative impact & allows the modeling of uncertainties in project schedule. However, it is not necessary that all the project management methodologies work well. In the dynamic industry environment, the basic aim of any project management strategy is to accomplish a task. However, it should be within the allocated budget and time while maintaining the quality of the final product. Project management approaches enable organisations to accomplish projects efficiently, addressing both internal constraints and dynamic external situations in the interim. Project management enables organisations to prevent or remove internal project constraints and also adapt to unforeseen changes in project scope or goals. An organisation can, depending on its requirements, either adopt a standard project management approach or combine multiple approaches. Additionally, an organisation has the advantage of project management software applications which facilitates intelligent planning, constraint removal and monitoring of projects. Here is a list of standard project management approaches. Traditional approach The traditional approach assumes that the project scope and goals will remain constant till project completion. Obviously, a project manager plans and identifies project resources based on this assumption. The traditional approach lays down the following project phases: †¢ Project initiation †¢ Project planning and design †¢ Project monitoring and control †¢ Project execution †¢ Project completion Since the approach is inherently rigid, many organisations may choose a hybrid project management approach. Critical chain approach The approach assumes that at least one constraint (behavioural or process-related) is likely to hinder projects which utilise complex processes and a large number of cross-functional teams. The approach recommends the use of behavioural and mathematical sciences to first predict, and then analyse and remove constraints. The project team can use data to remove the constraints. For example, if productivity is a foreseen concern, then a project manager could track the actual time spent by team members on the job. This approach is useful in sending quality deliverables on time by proactively removing constraints. Extreme project approach This approach is suitable for projects which handle dynamic situations, such as, changing customer requirements. Often, it may not be possible to obtain a full clarity of requirements and a project may purely be guided by market changes. The mobile phone industry, which experiences rapid changes, is a case in point. The project team, hence, plans purely on the basis of the currently available data and depending on requirement changes, modifies plans. Event chain project approach According to this approach, a single constraint can create a chain of constraints and severely impede a project. For example, in a project, if several departments depend on one another, then constraints in any one department can negatively impact the productivity of downstream departments. A project team can use past data to foresee a negative event and identify  preventive measures. Reliable data, collected over time, can even help track event chains. The Gantt chart is a popular event chain tracking tool. The event chain approach, hence, could be an excellent problem solving approach for critical projects. Project management software — how useful is it? Project management software capabilities have expanded notably and it gives more than just scheduling meetings and activities. A project management tool can estimate the effort, monitor project progress and highlight risks. It can also preserve historical data on past projects, which can be extremely useful in foreseeing constraints. Project management tools are available as desktop, web-based and collaborative applications and they are compatible for every type of project management approach. Many organisations have begun to adopt a hybrid project management approach, by combining the best features of standard project management approaches. This approach has been beneficial and indeed goes to show how flexible the project management approaches are. Read more at http://www.business2community.com/strategy/differing-approaches-to-project-management-0154472#iEJ2HHvpfEMXGPye.99

Saturday, November 9, 2019

Business communication Essay

SNC-Lavalin is one of the largest engineering companies in Canada, and one of the largest all around the world, however, failed to effectually communicate and face communication problem. This analysis report contains communication problems and influences on company. Additional information related to causes and symptoms of communication problem. Likewise, communicate with stakeholder groups result in concerns, and SNC-Lavalin use different communication model to deal with each group. The main communication problem is bypassing and different frames of reference. In communication process, bypassing can result in miscommunication, because the CEO and employee do not have the same symbolic meanings and bring own biases in any communication. Due to the longer lines of communication between CEO and employee, the message could be distorted. This problem impact on company fund missing and mystery payment, also, SNC-Lavalin’s stock decline a lot. The reason of problem happens because la ck trust, lack communication skills competition for status and rewards. It is easy to cause communication problem if no trust between communicationï ¼Å'through the long over time, the mistakes will become seriously and many mistakes are due to lack communication skills. Meanwhile, personal status and rewards will cause bypassing, lack organization concept, to the extent that different people pay more attention on their own profit rather than the common goal. SNC-Lavalin shows several symptoms due to communication problem. First, agents help company win a contract by paid bribes, but can’t follow the appropriate routines. Second, after $56 million dollars missing, Gwyn Morgan, the company chairman, denied that there is no responsibility for  superior officers, and resign suddenly after stated. Third, Cynthia Vanier help Muammar Gaddafi’s son smuggle and do illegal trading, as well as denied the charge. Employees and shareholders are the key stakeholder groups, however, different group has different concern. To specific, employees concern about their job and incomeï ¼Å'because it is close related to employees’ life quality. Meanwhile, shareholders concern about their profit, because it means stock rights will be influenced, in other word, shareholders profit could losing. SNC-Lavalin follows the communication models with each stakeholder group. As for communicate with employees; the first step is having idea. After organize idea, use encode like transfer language and write down or typewriting. After that, delivered by announcement or email. In order to overcome misunderstanding, improve the flow of message in company. Sign on the paper one by one after employees receive, if have problem mark it clearly. SNC-Lavalin have to give an effectively communication to shareholders. When idea formation by SNC-Lavalin, convert an idea into words that include meaning. It is necessary for general meeting of shareholders every year, in the meeting; shareholders understand the meaning stand for decodes the message successfully. Finally, ask question come up with feedback, and descriptive is the best choice. In conclusion, it is important for SNC-Lavalin communication effectively. This case analysis points out the main communication problem refer to SNC-Lavalin, at the same time, detail analysis about influence on company, moreover, discuss reason and manifestation about communication problem. After that, analyze the two key stakeholder groups, and each of them has different concern. Last but not least, SNC-Lavalin use communication model to deal the relationship with each stakeholder group.

Thursday, November 7, 2019

Essay on Educational Psychology and Learners

Essay on Educational Psychology and Learners Essay on Educational Psychology and Learners Principles of Learning Introduction The following assignment discusses motivation, learning activities, organisation of information, communication and feedback. The theories of psychologists will be referenced to the examples given for motivation and the organisation of information. Theories include those of Abraham Maslow, Jerome Bruner and David Kolb. Motivation Students attend Learning Resources IT training on a voluntary basis, and are therefore highly motivated. These students are intrinsically motivated. Borich & Tombari describe this type of motivation as follows â€Å"intrinsic motivation influences learners to choose a task, get energised about it, and persist until they accomplish it successfully, regardless of whether it brings an immediate reward† (p210). This description closely matches how our learners behave. Our students have recognised that they would benefit from improving their IT skills, have sought out and identified a resource to help them achieve this, and are happy to attend a programme that does not award a certificate. Some students are extrinsically motivated, as there are external factors for responsible for their attendance. An example of this if they are referred by academic staff for additional IT support, or if they are experiencing problems with an assignment involving IT. Social learning theorists such as Albert Bandura believe that observing peers shapes learners’ behaviour and that the social environment can influence personality Zimbardo, McDermott, Jansz & Metaal (p460). This could explain why some students attend because their peers are already competent in using a computer. If friends and family are IT literate then the learner feels they should be too. As more people become adept in using IT, then more people will follow this behaviour. Whatever the motivation factors, when a learner attends a learning programme it is the responsibility of the tutor to maintain their motivation. The learning environment Introduction A tutor’s first consideration is to establish and maintain an effective learning environment. Learners need to feel secure and emotionally safe. As the humanist psychologist Abraham Maslow’s (1962) Hierarchy of Needs shows, physiological and safety needs must be satisfied before a person can progress. These needs can be applied to a computer workshop as discussed in Reece & Walker (p101). To satisfy physiological needs the tutor must ensure that the room is not too hot/cold, the chairs meet health and safety regulations, and learners have adequate breaks. Many students feel insecure and apprehensive about learning IT, to ensure they feel emotionally safe it is important that the tutor show empathy. Computers must be regularly maintained and software properly installed to ensure the learner does not have to struggle with technical difficulties. Learning activities The Humanist psychologists believe behaviour is unique to each individual. We are not all motivated by the same things and we all have different aims and expectations. Borich & Tombari describe the humanist theory as follows: â€Å"It is called humanist because the primary focus is the inner thoughts, feelings, psychological needs, and emotions of the individual learner† (p285). The Humanistic approach should apply choosing teaching methods and planning learning activities. Learning activities must be structured to meet the needs of all learners. This can be a challenge as some learners expect formal instruction and the tutor-led approach, while others want to work independently, requesting help as required. Learners can become frustrated and de-motivated if the workshop is not at an appropriate level and/or the teaching methods and activities inappropriate to their needs. Psychologist Carl Rogers stated that the learner should be placed at the centre of the learning process through active self-discovery. He also stated that â€Å"the job of the teacher, in his view, is to

Tuesday, November 5, 2019

Assignment#2 Assignment Example | Topics and Well Written Essays - 1500 words

#2 - Assignment Example An example is the brown eyes allele that is dominant over blue eye allele. An individual with both blue and brown eyes alleles would have brown eyes. The term describes an organism that has two different alleles for a certain trait at a specific locus. The two alleles are represented with the lower and upper case of the same letter. A good example is a plant with a pair of alleles that determine whether it would have smooth or serrated margin. The pair would be written as (Ss) to denote the different genetic information carried. This is the genetic make-up of an organism that describes the genetic information contained by alleles in the cells of the organism. A good example is a gene that would define an individual as vulnerable to a particular disease. The principle asserts that, allele pairs representing a certain trait in an organism separate during the formation of gametes and randomly unites after the process of fertilization. This is as based on the following proponents; a particular gene can exist in different forms, new organisms inherit a pair of alleles for each trait from parents, and meiosis result to cells where each acquire a single allele for a given trait. A pair of different alleles results to dominant and recessive alleles that are expressed differently phenotypically. A typical question is the color of seeds in peas. Formations of gametes lead to separation of alleles that determine color in the seeds. They randomly unite during fertilization. Seed color in the peas become a question of which allele is dominant; either the green color allele or yellow color allele. Yellow color allele is dominant over green color allele. Presence of both alleles in a pea results to yellow pees. (YY) and (Yy) genotypes result to y ellow seeds. (yy) genotype results to green peas. The principle states that, for genes located on different chromosomes,

Saturday, November 2, 2019

Cyber schooling in education Essay Example | Topics and Well Written Essays - 750 words

Cyber schooling in education - Essay Example One of the biggest problems with cyber schooling is that there are not many opportunities for students to interact with each other. This interaction plays a significant role in motivating the students to continue schooling because they feel that the university is offering them more than just an educational experience. According to Lee and Chan (2007), â€Å"Students of all kinds want a sense of belonging to a larger university community, rather than simply being an enrollee, or worse still, a statistic, in a course". According to several studies, as argued by Lee and Chan , â€Å"this can be attributed in large part to the isolation experienced by these students†. In addition to contact with other students, people who are enrolled in online courses have to compromise on another vital interaction, that is, communication with their teachers. Face-to-face interaction can reveal emotions related to learning; however, cyber school teachers cannot see their students. Due to this li mitation, they cannot pick up on whether their students are interested in the class, as can teachers in a traditional classroom setting.Therefore, cyber schooling does not give its students equal footing with other students learning in person because they do not get the same kind of attention. Especially in classes where some students are learning online and others are learning in person, there can be "serious concerns of fairness and equity" .