Thursday, October 31, 2019

Hume Essay Example | Topics and Well Written Essays - 750 words

Hume - Essay Example Hume wrote a book on religion known as the â€Å"Dialogues concerning Natural Religion†. Following is a piece from that literature: â€Å"an eternal inherent principle of order to the world† In this piece of conversation Hume is arguing on the principle of religion and the ideology propagated by the religious texts and other literature. He says that the religion has been propounded as the order to the world. The religious people always based their theory tp be the world of God and Hume is questioning the same theory by making a sarcastic point with effect that all this is a theory in nature and nothing else. The reality is something according to Hume. To this point Philo says that religion is the ultimate truth in the universe and that those who do not follow religion and despise should be given a punishment so that they understand the importance of religion as well as believe in them. To this point Hume says that all this is propaganda by the religious organizations wh o try to turn people into believing the religion of their choice so as to include maximum number of people into this theme to make their ideology powerful, but in reality there is nothing like religion which exists. He goes on to say that there are other means to achieve salvation and self-satisfaction in the world. He says that the human mind is strong enough to find the way on its own and does not need the influence of religion in its life. He says that through wisdom and knowledge of materialistic things around us we may be able to find the true reason for our survival. He believes in the origin of science and says that the only way to live a happy life is to follows the desires of the human mind rather than following what a religious text says. Following is the second quote in the essay: â€Å"The principles themselves and their manner of operation are totally unknown† This is the second quote which shall be analysed in the essay. In this quote Hume says that those who ca me up with the idea of religion themselves do not know how the whole deal with the nature started in the first place. It is a mass agenda with political ambition which has driven the concept of religion in the way as it exists in the world as of today. Following is a quotation to explain the point in a better manner: â€Å"This I affirm, from the infirmities of human understanding, to be altogether incomprehensible and unknown to us. The essence of that Supreme Mind, his attributes, the manner of his existence, the very nature of his duration; these, and every particular which regards so divine a Being, are mysterious to men. Finite, weak, and blind creatures, we ought to humble ourselves in his august presence; and, conscious of our frailties, adore in silence his infinite perfections, which eye hath not seen, ear hath not heard, neither hath it entered into the heart of man to conceive. They are covered in a deep cloud from human curiosity† Over here it is explained that Hu me does not think that humans are aware of the true picture with respect to the God and his origin, and whether or not he exists in the first place. Religion is an outcome of human curiosity, but according to Hume it is a very weak outcome of such curiosity. He argues on the point that the believers of religion do not want to go that extra mile in search of the truth and it their quest to attain truth and divinity

Tuesday, October 29, 2019

Include strategies Essay Example for Free

Include strategies Essay Plan, implement and evaluate at least three activities for children in the foundation stage. You should ensure that across the three plans there are learning goals from each of the 6 areas of learning. Your plans should include strategies for differentiation.  Claire Field  Preston College  Introduction  The purpose of this work is to review the nature and content of the foundation stage curriculum and to consider the theoretical underpinning and underlying principles that have assisted in the formation of this early years practice. Through the planning and implementation of three activities, spanning the full spectrum of the foundation stage curriculum, the writer aims to identify and meet the needs of foundation stage children. This work will then evaluate the provisions for these children and investigate further the ways in which differentiation strategies can be implemented to ensure all children, regardless of their abilities, or stage of development, may receive the curriculum, delivered in a style appropriate to them and their own personal requirements. In 1988 the Conservative government, under the leadership of Margaret Thatcher, legislated that a National Curriculum be in force for pupils between the ages of 5 and 16, because she believed that  a good educational system was essential for the future  success of the nation (Ridley, 1992, p92)  Although a curriculum was in place for ages 5 to 16, there was a distinct lack of standardised learning for the early years. Margaret Hodge joined the Department for Education in 1998 and was responsible for reforming pre-school education policy (www.news.bbc.co.uk 12/10/2006). She was actively involved in the implementation of the Foundation Stage Curriculum in September 2000 and the publishing of the guidance to accompany this. The abilities of children are multifaceted and the foundation stage curriculum gives practitioners a much less rigid approach than the National Curriculum, by following the childrens progress using stepping stones. As the foundation stage curriculum is a government legislated policy, this means that all children should follow it. As it is flexible in the way in which it is implemented, it means that different types of settings can fashion the teaching methods to follow it in their own way. This means that whether a child attends a pre-school, an LEA nursery, a work-based nursery, or indeed a childminder, they are provided with the same curriculum. This is governed by Ofsted who maintain this proviso through their regular inspections. Good planning is essential in ensuring that all the practitioners involved can build a picture of the childrens development programme. Not only does it provide them with a premeditated programme of learning, but it also gives an opportunity for discussion to take place, where they can think about how they can progress children through the various stages of learning. For the practitioner to ensure all areas of the curriculum are covered, the planning must,  entail attention to overall (long-term) planning, medium  and short-term planningfor every aspect of every  lesson (Cohen et al, 2004, p125) Long term planning ensures that all the areas and aspects of learning within the curriculum are covered throughout the whole year and provides a template for the medium term planning. Correct use of the Curriculum Guidance for the Foundation Stage, together with the knowledge of the practitioners relating to the individual children, means that the children experience new and exciting ways to learn through play. The long term plans of the settings must be flexible. They should incorporate the schools ethos and provide for an enriched curriculum with scope for differentiation to allow inclusion. Medium term planning then identifies the specific topics of work to be covered over the term, or half term. From these the practitioner then sets out the weekly activity plans, to guarantee full coverage of the learning outcomes within the set topics. It is vital that the plans cover the whole of the six areas of learning and that the practitioner assesses the progress of the children, in order to make certain that they are all progressing to the best of their capabilities. Recording achievements as stepping stones enables early years practitioners to carry out assessments whilst the children are involved in activities, thus preventing the child having any knowledge that an appraisal of their skills and understandings is being undertaken. Planning and evaluating the success criteria of an activity allows the practitioner to be certain that every area of the curriculum is covered. Piaget introduced three principles of cognitive development and these apply to all of the subjects studied in this report. His first principle is assimilation. He says that children do not absorb all the information they encounter. They actively engage in the assimilation process and learn what is relevant to them at their stage of development. The schema stage is next. During this phase the children relate what they know already to their current situation. The third phase is where the child wishes to seek stability cognitively. He utilises the knowledge gained and applies it to make a general logical picture (Oakley, 2004). From this it is clear to see how the children gain the learning and knowledge applicable to them by interpreting activities in their own way.

Sunday, October 27, 2019

Principles Of Additive Manufacturing

Principles Of Additive Manufacturing Additive manufacturing (AM) is a general term for all technologies that produce parts by layer addition of material at the micron level, to achieve the required shape, besides of metal removal technique which is traditional subtractive process. During research period, AM the layer by layer manufacturing terminology has been standardised by the American society for testing and materials (ASTM) committee F42 on additive layer technologies. In the beginning AM technologies were restricted because of commonly accepted leading name Rapid prototyping (RP) for the production of parts and prototypes, which was the term used for many years to describe all layer additive manufacturing processes. Advancement in the material, process and system hardware cleared that the parts could be manufactured with an adequate mechanical property to let for further applications. This allowed the production of end use models with layer additive technologies, so rapid manufacturing (RM) was adopted which distinguish the functional nature of the models produced from the prior RP parts and prototypes. Recently AM is used generally and RM and RP are only use to illustrate the particular application of AM technologies. 1.2.1: Principles of Additive Manufacturing AM technologies fabricate models by fusing, sintering or polymerisation of materials in predetermined layers with no needs of tools. AM makes possible the manufacture of complex geometries including internal part detail that are approximately not possible to manufacture using machining and moulding processes, because process does not require predetermined tool paths, draft angles and under cuts. In AM the layers of a model are formed by slicing CAD data with professional software. All AM system work on the same principle; however, layer thickness depend upon parameters and machine being used and thickness of layer range from 10Â µm up to 200Â µm. Layers are clearly visible on the part surface in AM operation, which controls the quality of final product. The relation between thickness of layer and surface orientation is known as staircase effect. However, thinner the layer is the longer the processing time and higher the part resolution. Layers in AM are built up at the top of the previous one in z axis. After layer gets processed the work platform is dropped down by the single layer thickness in z axis and the fresh material layer is recoated differently for number of other methods. In resin based system traversing edge flatten the resin, in powder based system deposited powder is spread using roller or wiper, in some system the material is deposited through a nozzle which deposits the required material. Because recoating time is even longer than the layer processing time. For that sake multiple parts are building together in the time of single material recoating build. Different softwares are available to position and orient part so that maximum number of parts can be built together. Available softwares are VISCAM RP and Smart Space used in MAGICS. Some delicate parts produced through AM technologies need a support structure to hold the part in work platform during the build process. All AM machine uses different support structure that are designed from specific material for effective use of build parts. Commonly used support structures are thin small pointed teeth to minimising the part contact so that they can be removed easily with the hand tools. 1.3: Rapid Prototyping Rapid prototyping processes are a relatively recent development, accurately described as layer manufacturing processes. The first commercial RP machine was released at the AUTOFACT show in Detroit (USA) in November 1987 by the company named 3D systems. The process begins with creating a 3D model using CAD software and it is identical for all built techniques. The model is then convert in to Standard Triangulation Language (STL) format, this format shows the 3D surfaces as an assembly of many planner triangles. At next stage STL file slice the 3D model in to layers. As we know the additive manufacturing is gradual process in which parts are manufactures through layers and each layers are joined and process continues until the final part formed. Post processing is usually required to improve the surface finish of the product. RPs additive nature allows is to create parts with complicated internal features which is not possible by other means like hollow areas and undercuts for that these parts sometimes supports are necessary. (palm, W. (1998, May). Rapid Prototyping primer. Retrieved November 4, 2010, from Learing factory Rapid prototyping home page: http://www.mne.psu.edu) RP products often have low functionality and commonly used as a visual aids with in product development. However material selection decide the prototype testing for short term functionality parts. Most of the RP materials are polymer based, which is for limited part functionality. Although for little part functionality paper and starch based materials are used. RP modernised the product development with an ability to produce single and multiple physical models, facilitating the reduction of product development cycle time ranging for different industries. 1.3.1: Rapid prototyping technologies There is a huge number of experimental RP technologies either in development or used by small groups of individuals. RP techniques those are currently commercially available including: Stereolithography (SLA) is the first RP technique developed by 3D systems in 1987. SLA builds single layer at a time by tracing beam of laser on the vat of liquid UV curable photo polymer resin. UV light strikes the surface of the polymer resin and solidify the single layer of resin, when one layer is cured the built platform is dropped down by single layer thickness (Schmitt, Q. L. (2005). Rapid prototyping in dentistry: technology and application. Rapid prototyping in dentistry: technology and application , 11-13,42,44). A resin filled blade sweeps over the cross section and fill it with fresh material for further curing at the top of the previous layer, process continues until the model is produced. Material self adhesive property bond each layer and form a complete 3D model, fabricated part is cleaned in dawanol resin, alcohol and then cured in a UV oven. (wikipedia. (2010). wikipedia free encyclopedia. Retrieved November 1, 2010, from wikipedia web site: http://en.wikipedia.org/ wiki/stereolithography) Selective laser sintering (SLS) uses powdered materials. This is one of the systems major advantages that a part could be built in any fusible powdered material. SLS technology was developed in Texas University, which was commercialized in 1993 by company named DTM. In 2001 the DTM were bought out by 3D systems. (http://www.jharper.demon.co.uk/rptc01.htm) This technology works by selectively sintering fine powder materials directly using an infrared (IR) laser from CAD. Numbers of thermoplastic materials are processed in SLS like nylon (polyamide) for rapid tooling application, aluminium filled nylon, polystyrene for sacrificial pattern in investment casting and gas filled nylon. Part produced through this process used as functional model as well as visual prototypes because of good mechanical properties. However as compared to traditional tool steel the part had poor mechanical properties, so material required post processing to form dense models, thus it was very difficult to control the part accuracy because of introduced stresses in processing stage. With the combination of EOS GmbH and Electrolux a special alloy powder was developed, which did not develop shrinkage distortions. Moreover introduction of fibre laser technology allowed the introduction of Selective laser melting (SLM) since the fibre laser allowed the sintering of metals that were completely melted in to dense part with no need of post process infiltration. Numbers of other technologies have been commercialised since 1991 such as laminated object manufacturing (LOM), fused deposition modelling (FDM), 3 dimensional printing (3DP). Recent technological availability of RP is increased with material diversity, which increased the efficiency of creating physical prototype in advanced product development. 1.4: Definition of Rapid Manufacturing Firstly, it is essential to give a definition of rapid manufacturing. The way that several parts are manufactured will change in the future. RM has been explained as the use of a CAD-based automated AM process to construct parts that are used directly as finished products or components (Hopkinson et al. 2006, p. 1) Since with the time change, the research on AM technologies and materials has advanced and the feasibility of fabrication of functional, low volume parts are increasingly in many industries. Many industries are examining the available technology and investigating the possibilities of design to increase the high functional component and to reduce product to market time. A key benefit of RM approach claimed that it proposes the opportunity of mass customization, however can be cost effective for individual short run part, clearing conventional designing constraints of manufacturing processes. RM greatly minimised wastage of raw material as compared to subtractive process, so got popular in aerospace industry, where expensive metal alloys are extensively used. The grade material such as titanium, ABS, nylon and aluminium has been the important part in the progress of RM technologies. (http://www.hse.gov.uk/horizons/rapidmanufacturing.pdf) The introduction of RM is not as simple as it first appears, although research in RM technologies and application are progressed by RP. The evolution is still in progress to link RM from research to actual manufacturing for that number of matters to be addressed that prevail need explanation and consensus before it can happen. RP produced prototype were not considered for product repeatability and quality measures. Since products of RM have proposed functionality, industrial certification and the requirements include material control, accuracy, speed, surface finish and part repeatability, so that RM is successfully applied in many industries including medical, automotive and aerospace to produce low quantity of small, high value parts with complex geometries that is difficult through conventional methods. (http://www.rm-platform.com/index2.php?option=com_docmantask=doc_viewgid=129Itemid=5) In future, RM technology addition in industries can offer small complex design feature parts that ever imagined with great manufacturing facilities and the extension of approach. Development of advanced materials and equipment enable the fabrication of complex product by directly manipulating the matters on a molecular scale. 1.5: Selective laser melting (SLM) 1.5.1: SLM background Selective laser melting machine was first introduced by Fockele and Schwarze (FS) of Germany in 1999 with the support of Fraunhofer institute of laser technology that was steel powder based SLM machine. Later in 2004 first SLM machine named Realizer 250 SLM was released commercially after FS coped up with MTT (MCP tooling technologies) and in 2005 high resolution machine named SLM Realizer 100 was released. Since the release of the MCP Realizer SLM, other manufacturer such as Concept laser and EOS released machine with different process named Laser curing and Direct metal laser sintering respectively. Concept laser (GmbH) first released M3 Liner and M1 Cusing in 2001, later they released another machine named M2 Cusing to produce reactive materials like titanium and aluminium alloys. EOS released the machine named EOSINT M 270 DMLS in 2003 and termed as the most common machine for direct metal fabrication. In 2008 MTT and 3D systems proclaimed a distribution agreement for the rights to distribute SLM machines in Americas and Japan. In 2008-09 new version of SLM was released by MTT named SLM 250 and SLM 125. 1.5.2: Basic principles of SLM SLM is a powder based additive manufacturing process that permits attaining 3D functional parts from a CAD data. SLM follows the same process route as SLS, where complete melting of powder occurs instead of sintering or partial melting. Process begins with the deposition of thin layer of powder thickness ranging from 50Â µm to 75Â µm across a substrate platform. A high power fibre laser scans the powder surface, the generated heat melt the powder particles and form molten pool. Once the layer has been scanned, the platform drops down by single layer thickness in z axis and the fresh layer of powder is deposited and the process is repeated until the entire built is completed. Loose powders are removed once the fully dense part is complete. SLM parts must be completed in inert gas atmosphere such as argon to remove oxygen from the building chamber. Supports like thin teeth shaped are needed to secure hanging features due to shrinkage of material solidification. The substrate is removed from the build chamber once the process gets complete and supports are removed carefully. SLM termed as the most viable techniques for direct fabrication of complex featured part of metals. SLM can permit the design optimization and production of the complex functionalities beyond the capabilities of traditional techniques, which is possible because of accuracy, versatility and the laser beam spot size. The small laser spot size minimizes the area to be melt enabling the manufacturing the part of high resolution. However, to be positioned SLM in RM category as a general method to achieve greater recognition in companies, methods and development need to be changed to perform and prove itself as being reliable, repeatable and cost effective production process. SLM also known as freeform fabrication process and capable to build thin wall complex features models of high resolution and extends its capabilities than the conventional processes such as customised medical implant especially dental crown and bridge frame work, tooling inserts with conformal cooling channel and functional models. SLM concerns primarily turn around the application of high powered fibre laser to generate high temperature to completely melt the powder, surface roughness is the main concerns of SLM because of high heat input causes material vaporisation and generation of spatter that subjected by melting and re-solidifying. But SLM parts cover committed microstructure parts and material properties that make possible this technique for the application. Benefits of SLM: Parts produced in this process are nearly 100% dense and have same mechanical strength as the original material Almost no powder material is wasted, the loose powders which was not solidified can be reused SLM offers minimum time to market, exact shape generation without an expansive moulds, process flexibility and great utilization of material SLM powder bed technology permits cheap and fast powder metallurgy. The alloys to be tested can utilized straightly with in the prototyping apparatus and alloys can easily accustomed with the change of elemental ratio of powders Drawbacks of SLM: SLM is regarded as the high temperature gradient, which causes thermal stress build up and rapid solidification so coarse to grainy surface finished parts are produced The inadequate availability of some materials in powder form restricts the range of material for processing. Process should be optimised for available material (Selective laser melting, 10 December; http://raproto.com/?cat=31, accessed on 25/5/2011 and http://www.mtm.kuleuven.be/Onderzoek/a2p2/researchtopics/SLM, accessed on 26/5/2011) 1.5.3: SLM materials SLM technology worked with all possibly relevant metals for part production. Process starts with identifying the physical behaviour of material being used with microscopic level of process understanding. In order to develop technique, the main quality aspect of parts being produced includes surface roughness, high functional strength, accuracy, density, hardness, residual stresses have to be observed before applied for the industrial applications. SLM system always develops parts with variety of materials and new ranges in which material property is easily changed with the property requirement with changing the mixture ratio. The range of materials are used that improved the new work powders such as tool steel, stainless steel, titanium alloy, aluminium alloy, cobalt chrome and inconel. (http://www.mtt-group.com/data/pdf/extract/0413-MTT_2pp_SLM_A4_%20Flyer_v1.pdf) Materials are described below according to property, alloy and applications: (http://www.xyzinnovation.com.au/assets/slm-brochure_290709.pdf) Titanium: Mechanical properties: High strength, low thermal expansion, high corrosion resistance, excellent machinability and bio compatibility and low weight. Alloys: Pure titanium, Ti-6Al-7Nb and Ti-6Al-4V Applications: Medical implants, jewellery and design, F1 motor sport and aerospace Cobalt chrome: Mechanical properties: High strength, excellent corrosion resistance and bio compatibility and high toughness Alloy: CoCr ASTM F75 Applications: medical implant, dental and high temperature Stainless steel, tool steel: Mechanical properties: High toughness, hardness and corrosion resistance and excellent machinability Alloys: 316L stainless steel, H13 tool steel, 17-4PH, 50CrMo4, CrNiMo 13-4 and M333 Applications: medical implants, spindle and screws, plastic injection moulds and maritime Aluminium: Mechanical properties: Excellent alloying properties and processability and low density Alloys: Al-Si-10Mg, Al-Si-12Mg, Al-Si9-Cu3, Al-Si-7Mg and Al-Mg4 Applications: Aerospace, automotive, consumer goods Inconel: Mechanical properties: Good mechanical strength, excellent corrosion resistance, outstanding welding ability and good creep rapture strength up to 700C Alloys: Inconel 718 and Inconel 625 Applications: Aerospace, gas turbines, space shuttle and crafts, nuclear reactors and rocket motors Integration of SLM in production systems: Process chain Function SLM process chain Part Finish (Machining) Part Design Process Strategy Process Control Process Preperation Designed for optimized Part orientation built strategy online defect Interface for Functionality (quality/ build time) -built parameters detention machining (light, weight, -support structure -under cuts etc -close loop control energy efficient etc ) (www.materialscluster.lu/content/download//Wilhelm_Intermat2011.pdf, accessed on 30/5/2011) SLM machines: SLM50 Realizer: Worlds first SLM desktop machine to produce quickly and extremely accurately manufacture functional dental parts based on CAD data. It is well appropriate for dental laboratories and similar environments for the production of bridge and crown frame and brackets. This machine is capable to produce 100 parts/ months. SLM50 designed a component with height up to 40mm and diameter up to 60mm. (http://www.industrialnews.org/2011/03/worlds-first-slm-desktop-machine-dental.html#ixzz1NtOkViL9) SLM50 specifications Construction volume Platform diameter 70 mm, max. construction height 40 mm Thickness of layers 20-50 ÃŽÂ ¼m Laser type Fibre laser 20 to 120 W Power supply 16A, 230V Power consumption 1.0 KW Argon consumption approx. 30 Liter/h Dimensions W800 x D700 x H500 mm Weight approx. 80 kg Software ReaLizer Control Software Materials Cobalt Chrome, Stainless Steel 316 L, gold-, silver-, palladium-, titanium alloys (http://www.progold.com/GB/Files/Realizer.pdf) https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVDcO0oAtz9R9Nd25G-CGDAs6EtYlrgJgy01eAJ1kYD-YRXN2cYHg0ywa6LBN-dgK8ODXhPZnjctuYtkp0Z2BNicNoNy6wJUJOBRa89VhkczkUhxvXSfHIUA7YWXN25L7KSX0NMkYlVHhb/s1600/SLM-50-1024682.jpg (http://www.industrialnews.org/2011/03/worlds-first-slm-desktop-machine-dental.html) SLM100 Realizer: Machines capability to design a component with 100mm high cylindrical construction area with 125mm diameter, because of the dropped laser spot size to 20Â µm. The machine can produce parts with delicate features, high surface quality and maximum wall thickness. SLM100 is appropriate for dental laboratories or related environments. SLM100 specifications Construction volume Platform diam. 125 mm Max. overall constr. height 100 mm Layer thicknesses 20-100 ÃŽÂ ¼m Laser type Fibre laser 20 to 200 W Power supply 16A, 400V Power input 1.5 kW Argon consumption app. 35 l/h Dimensions W900 x D800 x H2400 mm, SLM100A additional display support arm Weight 500 kg Software ReaLizer control software Materials Tool steel H 13, titanium, titanium V4, aluminium, cobalt chrome, stainless steel 316 L, Inconel, Gold, ceramic materials under development (http://www.realizer.com/en/wp-content/themes/realizer/ReaLizer.pdf) (http://www.twi.co.uk/content/laser_slm.html) SLM125: The SLM125 machine presented with a range of laser from 100-200W with 30mm laser spot size diameter. This machine is capable to built pattern geometries of 200Â µm. Surface finish is controlled by laser scan approach, however build speed and surface finish is majorly depends on material that to be processed such as tool steel take more time than the aluminium and titanium. For fully dense part the both parameters surface finish and build speed should range from 15-30Â µm and 5-200cm3/hr respectively. (http://www.sme.org/cgi-bin/find-articles.pl?ME09ART20ME20090401SME) This machine has been designed for the simplicity to the users with in a industry with touch screen features, which cleans down the process. Robustness of the machine has given precedence to the adopters. The recoater blade used in this system is soft and carefully designed to reduce consumable cost by rotating same blade many times before replacement, and low filter element causes low gas consumption, results machine reliable and minimum in cost to users. SLM125 specifications Construction volume 125mm x 125mm x 125mm (x,y,z) Layer thicknesses 20 to 100ÃŽÂ ¼m Laser type Fibre laser 100-200 W Power supply 16A, 400V Power input Argon consumptionm Dimensions Weight Software ReaLizer control software Materials Tool steel H13, titanium , titanium V4, aluminium, cobalt chrome, stainless steel 316 L, Inconel (http://www.mtt-group.com/data/pdf/extract/0413-MTT_2pp_SLM_A4_%20Flyer_v1.pdf) MTT SLM25 (http://develop3d.com/profiles/box-clever) SLM250: This machine measures construction area of 250ÃÆ'-250ÃÆ'-250mm. The space in the processing area can be used to produce maximum number of parts with loading numerous parts at the top of each other. SLM250 is equipped with high power laser up to 400W with an automated filter machine to remove and recycle loose powders from the processing area. High part output makes it appropriate for industrial manufacturing process. SLM250 specifications Construction volume 250 x 250 mm , maximum construction height 220 mm Layer thicknesses 20-100 ÃŽÂ ¼m Laser type Fibre laser 100, 200 or 400 W Power supply 16 A, 400 V Power input 2.5 kW Argon consumption app. 70 litres/h Dimensions W1800 x D1000 x H2200 mm w/o sieving machine Weight 800 kg Software ReaLizer control software Materials Tool steel H13, titanium , titanium V4, aluminium, cobalt chrome, stainless steel 316 L, Inconel (http://www.realizer.com/en/wp-content/themes/realizer/ReaLizer.pdf) http://www.renishaw.com/media/img/gen/8a0166f5acc64a4190c81957ffe11b05.jpg (http://www.renishaw.com/en/renishaw-acquires-mtt-investments-limited14897) D1: (http://doc.utwente.nl/52914/1/Wa1025.pdf) D2: (http://pic.sagepub.com/content/220/6/857.full.pdf) D3: (http://www.meditech.cf.ac.uk/pages/Individula%20Meetings/15th%20Nov%202007/presentations/R%20Bibb%20-%20PDR%20-%20ARUP%20Nov%202007.pdf) SLM 125 machine run: SLM 125 machine operated in the following manner: Turn on from the back- MTT 125 screen showed up- Tap on the screen- Login with the user name MTT2- Tap light (light opens)- Tap to open the door- hold reset and open the door Wiper reset: Tap to wiper and elevator on the screen- find wiper home- tap to substrate and set thickness to 0- press Esc- hold reset and open the door. Tap to wiper and elevator- find wiper home- Go to FWD POS- then unscrew the wiper arm from both ends To draw material holder or wiper tension: unscrew both the nuts placed at the ends with pressing at the top. Attach back both the wiper tension and wiper arm to their respective positions- shut the door Before placing the platform in the machine , first measure the base plate with vernier calliper then Tap to wiper and elevator- find wiper home- tap at substrate and set the thickness to 14.5- tap at table auto (it will built)- Tap at set datum- find table home. Go again- substrate set to 0- Go to top POS- Tap at Go to Centre to position wiper at the centre C:UsersP10507465DesktopWiper_tension[1].JPG Lift wiper and place paper then tight it. Clockwise rotation of screw to loose and anticlockwise to tight it. Later paper is removed. Just ensure that you should put the same pressure during screwing. After setting the wiper arm at the paper sheet thickness- close the door- tap to wiper and elevator- find wiper home To clean filter assembly: Remove both caping placed at the top and bottom and do not forget to remove the rings- unbolt the holder- remove the filter (twist and draw)- clean the chamber- push filter to attach- bolt it C:UsersP10507465DesktopFilter_Assy.JPGC:UsersP10507465DesktopFilter_removal.JPG Tap to wiper and elevator- find wiper home- set datum- Dose to 3- Go to FWD POS- open with holding reset button. Close the door- find wiper home- Esc- select- auto (safe change filter valve- yes)- auto operation starts- click ok- Isolate change filter- confirm. Operation or part building starts and it logged out automatically after finishing the operation Login again with user name MTT2- tap to wiper and elevator- find wiper home- Go to up- Esc- open the door Cleaning: Slowly remove the powder with the brush- later hover it to clean properly. Unscrew the base plate- Brush again not to waste powder. Close the door- wiper elevator- find wiper home- Go to FWD POS- Esc- open the door holding reset button Unscrew the wiper plate and clean- the red strip on the wiper arm turns black at worked portion means damaged. Unscrew material holder- brush the machine to restore loose powder to the holes (for titanium cleaning is really important) Over flow cleaning: Unscrew loose powder holder underneath the platform. Put screw at close position and turn around to unscrew it to recover loose powders- screw it and place it in desired place including rings and caping Set wiper back at the position to clean lense- unscrew it and clean it with proper handling Dental suprastructure The manufacturer is also is involved in the dental industry, for which the company manufactures products such as implant-supported suprastructures. Using patient-specific geometry data, acquired through medical imaging or 3-D scanning, the personalised structure is designed in software and printed in titanium. As a concluding step, the dental technician finishes off the structure and completes the final prothesis. Through patented DentWise technology, geometry and surface retention related limitations set by traditionally moulded or milled suprastructures no longer apply. Through digital SLM technology, geometry and surface retention related limitations set by traditionally moulded or milled suprastructures no longer apply, Mercelis says. In addition, the implant connections are completed with high precision. Implant bars and bridges achieve a fit accuracy better than 20 Â µm at the implant interface. They also can integrate complex surface textures and sealing edges. DentWise suprastructures are manufactured using ultra-strong titanium alloy (Ti6Al4V, grade V), which outperforms the commonly used titanium grade II in terms of mechanical propertie (http://www.emdt.co.uk/article/selective-laser-melting)

Friday, October 25, 2019

Architecture Set In Motion Essay examples -- essays research papers

1. Bouffrand: Salon de la Princess, hotel de Soubise, Paris, France, begun 1730’s   Ã‚  Ã‚  Ã‚  Ã‚  Salon de la Princess, is a many sided cylindrical interior room and is part of the Rococo style that incorporates minimal architectural features and light airy decor, that develops into a profession of interior design. Rococo is the revolt against complicated Baroque that decorated the interior of Versailles, in revolt against the palace and after the death of Louis XIV, French women who had city houses in Paris inspired a new lightened airy style of decor and architecture. As seen in the Salon de la Princess, the structure of the room has virtually been covered up by white walls of wood and mirrors, and it only contains hints of the classical orders and conventions, while conveying the modern concept of space free of major structural forms. The predominate feature in the room is the gold plaster decorations that adorn the entire space and within this is seen the main curving arabesque line that flows throughout the style and characterizes it as a free flowing for m of design, and makes classical references to the fantasy decorations used by the mannerist and found in the Roman villas, complete with cupids, garlands, and birds. Salon de la Princesse is the last major style before neoclassicism, but the free form of the style is a predominate feature in modern organic architecture, and redevelops in the late nineteenth century through the style of Art Nouveau, which is used by Victor Horta, in the Tassel House. 2.Hoare et al.: Stourhead, Wiltshire, England, redesign begun 1750s   Ã‚  Ã‚  Ã‚  Ã‚  The â€Å"English† garden is one of the greatest gifts that English designers have contributed to the world of architecture, and the gardens that surround the Stourhead estate in Wiltshire England are massed with many forms of natural origin, and as containers of natural descent they incorporate curving elements, as in the cylinder, cone and sphere, however among the natural creations are manmade structures that contradict natures’ verdant burgeoning display of the curve, with structures that include the cube, or squared forms that makes for a cornucopia of forms both natural and manmade. The inspiration behind the English garden lay in the Neoclassical movement against the structural formality of the Renaissance garden landscape, and in England wh... ...oses of space. One main idea developed by Wright through his career is architecture set in motion and true to a living organism, like the three planes in Falling Water that seem to hover over top the water fall, as do the walls that wrap around the Guggenheim forming a structural cyclone, which is mirrored on the interior by a ramp that wraps around a central atrium and provides for displaying art work along the walls of the ramp, but proves to be quite unsuccessful because Wright as an egomaniac made certain that the structure is the main focus and the most dynamic art piece exibited, putting architecture on the same plane as the visual arts. As many of his homes influence modern day suburban America in the Historicism movement, the Guggenheim influences the Post Modern Movement, a theory in practice that believes Modernism failed and incorporates references to the past with sculptural freedom and clarity of form, as does the latest and most dynamic display of architecture to come out of the 1990’s, and direct descendent from Wright’s, New York museum, is Frank O. Gehry’s Guggenheim Museum(1997) in Bilbao, Spain, that Philip Johnson called, â€Å"the greatest building of our century†.

Thursday, October 24, 2019

Brand Placement

Businesses strategically place their brands and products in movies or in TV series to subtly get consumers to notice their brands, this Is called brand placement. Two products which I have noticed In movies are Apple Imams In the Twilight movie Breaking Dawn Part 1 (2011) and Manual Blank shoes in the Sex and the City Movie (2008). These were both big blockbuster hits which many people viewed and obsessed over. They both star very famous celebrities who play desirable characters.In the movies both the brands are clearly shown with the characters so the viewer ill relate who the character is with the brand to give the brand symbolism (Levy, 1959). In Sex and the City we first see the Manual Blank heels when the mall character Carrie Bradshaw Is shown her new wardrobe which will soon be filled with her clothes that are envied by viewers. The scene is romantic and everything is perfect in Carrie's world which suggests that the consumer would be in a similar situation if they had theses shoes.The label on the box is clearly shown as Carrie carefully puts her prized possession on the shelf. The shoes appear at the end of the vie during a special scene where Carrie Is being proposed to, the heel is used to close the deal of the proposal. This once again Incorporates the shoe with happiness and romance. Sex and the city has been a popular TV series (1998 – 2004) so there was a huge hype when the movie was released. Carrie Bradshaw is a well known character for her glamorous life; Carrie is an icon for fashion and high class.We straight away draw a connection with any brand associated with Carrie Bradshaw to being an ultimate luxury brand, and as a viewer I desire to own the brands shown in the movie to make myself appear more glamorous. The Sex and the City's target audience are females over 16 years. It has an emphasis on relationships and high fashion. I aspire to be Like Carrie and her friends as they were Independent and bring out ideas of their own about s ex and women being in control.The Manual Blank shoes are targeted to me and women with similar interests in fashion and their appearance. The shoes are a very high priced item but the brand makes me think that I would be superior to others if I own this luxury good. By owning Manual Blank shoes I would feel a part of the top label brand community which they associate Carrie with (Ganglier, 2012). I believe that If I owned them I would appear more glamorous and they would give me class and style. These shoes would affect self image positively for me (Williston, 2012).This is because I would feel more important and confident with these shoes on. Mascots Hierarchy of Needs suggests that â€Å"people are motivated to fulfill their basic needs, before moving on to other, more advanced needs† (Cherry, n. D. Para. 1). The needs are shown on a pyramid starting with physiological needs then safety needs, social needs, self-esteem needs and finishing with self-actualization (Cherry). M anual Blank shoes fall Into the self- esteem group as they can give the owner confidence and status (MBA Online Programmer, n. ). The Culled family in Twilight are depicted as perfection. They are beautiful, rich, and intelligent and are identified as superior to everyone else. The brand Apple appears in Breaking Dawn during a serious scene in the movie where the Culled family are desperately researching to find a life line. As the computer is reliable and a good source of research as an intellectual family such as the Culler's use them. Breaking Dawn was the third top grossing movie of 2011 which shows the age audience that this movie reached out to (Midi. Mom, Inc. N. D). The Apple symbol glows on the screen with the family in the background to emphasis that this is a brand that a family as perfect as the Culler's would use. The Twilight series is targeted to teenage girls and women who fantasize over the desirable men in the movie (Denial, 2011). The Twilight Saga has been a huge hit, as at 13/04/12 its Faceable page has 31 ,951 , 1 55 likes with many of these fans being obsessed over the characters and actors in the movie.With other 31 million fans, Apple is getting their rand out to a huge audience who are likely to be influenced by what the characters are associated with. Twilight fans will believe that by associating themselves with the brands that are used in the Twilight Saga movies they will be more alike the characters. I am a fan of the brand Apple; I personally own an Apple pod and an Imax. My pod is something I could not imagine functioning without as it holds many songs as well as having other functions such as the internet, email and camera.I personally spend a lot of time on my Imax both for social reasons communicating with people and to get university work completed. These Apple products are essential for me as I could not imagine my daily life without them. It is part of my culture to be up to date on the latest technology, and to be able t o communicate indirectly through the internet with my peers (Williston). It is a norm within my culture to own Apple products, the people around me and I use Apple products daily (Williston).By having Apple associated with famous actors such as Robert Patterson and Kristin Stewart, the brands are a part of these actors indirect reference group as the actors are people you aspire to be like (Williston). These groups give us â€Å"a point of reference in deciding what consumption behavior to undertake† (Williston, 2012. Group Influence & Social Norms Lecture). Indirect reference groups can have a different amount of influence on consumers depending on many factors including how attractive the reference group is, whether the product is being used publicly and the consumer's self-esteem (Williston).Apple is already a very well known brand and as soon as the logo came into view on the screen the viewers would have straight away recognized it and began to make connections with he b rand and the Robert Patterson or Culled family reference group. Brand equity is important when trying to make your brand familiar with consumers it is â€Å"The value premium that a company realizes from a product with a recognizable name as compared to its generic equivalent† (Investigated, n. . Para. L). Brand equity is about the name and symbol of the brand, it includes brand loyalty, name awareness, perceived quality, brand associations and other proprietary and brand assets (Ganglier). With Apple and Manual Blank appearing in these well known and popular movies they are gaining a lot of brand awareness which is important as when consumers are choosing between options they will pick the brand they are most familiar with.Viewers of Sex and the City associate Carrie with high quality goods so by seeing Carrie with her Manual Blank shoes consumers will automatically relate the Manual Blank to top quality which will add value to the brand. Manual Blank and Apple have been suc cessful at getting their brands out Breaking Dawn Part One. The characters and actors are dollied by many so a lot of consumers are likely to be influenced to purchase these products. By owning the products shown in the movies consumers will be able to associate themselves with the brand communities and reference groups.

Tuesday, October 22, 2019

RH Bill Essay

Introduction Poverty and overpopulation are two of the biggest national concern the Philippines have right now. Many solutions have been made to alleviate these problems but none of them seem to work. One of which is The Reproductive Health Bill of the Philippines, or RH Bill. This bill allows Filipinos access to contraceptives and an opportunity to be enlightened on the topic of family planning. The bill was first introduced in 1998 but somewhat died in the years after. Not until the year 2011 that the Congress decided to once again open its door for discussion on the RH bill. The basic condition of this bill is to introduce Filipinos and distribute to them family planning devices. It also aims for health care centers all over the country to circulate information on how to properly use them. Companies and schools are also encouraged to do the same with their employees and students. Through this, the bill intends to alleviate the problem of overpopulation in the Philippines. The bill, like any other thing in the world, is surrounded by controversies. It is actually a really good bill but a lot of people are opposing it. The number one group who opposes it is the Catholic Church. Though not entirely stated in the bill, the Church implies that the bill entails abortion, something that is greatly against the teaching and morals of the Church.