Screen Recording in Computer Teaching and TrainingBy: Adward Chan
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Screen Recording in Computer Teaching and Training
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In the production of multi-media courseware presentation, we often need to capture the computer screen actions of operating the application, such as tracking the movement of the mouse and the keystrokes from the keyboard, and so on. That is to make a multimedia animation presentation document from your onscreen activity. And they can be used for software training and self-learning. The research shows that screen recording applied to teaching and training receives a good result.
Multi-media technology like screen recording can be used to create virtualized scenarios combined with driven tasks for breakthroughs of the keys and difficulties in teaching. Students can view the screen recording documents online or on their computer screen. They explore independently, and exchanges opinions mutually. They work as partners to complete learning tasks, while teachers guide and support them in a timely and professional manner.
Let’s say that the teacher is having the course of how to make a good PowerPoint presentation. He shows the students the operating steps and tips with screen recording courseware and then arranges the task.
He prepares a detailed demonstration of software video tutorial recorded from computer screen (Flash video files recorded by DemoCreator). Via multi-media teaching system and network, the software video tutorials can be posted to the learning management website and the desktop machines of students. And students can watch the tutorial and operate the application at the same time, and communicate with teacher and exchange opinions with other students readily. So the teacher has enough time to understand the learning process of more students, and guides them to learn better. For some unexpected operational problems, teachers can produce tutorials and send to students to support their learning online.
There are many benefits of screen recording on computer teaching and training:
1. Fully reflect the subjectivity of students, and drive the entire class to complete the task and explore more.
2. With the video tutorials recorded from screen, it breaks restriction of time and space in learning. Usually, students listen to the teacher in the class, and then go to practice. If they don’t focus their minds, some operations or main points may be unable to grasp. And it is not practical for teachers do repeat the course. Screen recording provides a convenient way to help students to learn and explore, no matter in classes or in extra-curricular.
3. All levels of students are taken in consideration. There are some differences of learning progress among Students. It is more conducive for different levels of students if there are detailed video tutorials. Students who master fast and do some deep exploring while students who master slowly can spend more time and opportunity to consolidate their learning.
4. A big help for teachers. There will be more time for teachers to manage and guide students in computer course learning. And there will be more time for Students to collaborate with peers, and more opportunities for exchanges opinions with their teachers.
5. Screen recording documents can be done by both extra-curricular and in class. The screen recording documents need to be prepared before such computer courses. If necessary, teachers can install the screen recording software to help students deal with some unexpected problems in class. On-site recording and distributing is a necessary complement for pre-class preparation improvement.
6. In favor of post-production and application. The screen recording documents used in class can be improved in accordance with the learning performance of students because of the post-editing and publishing features of screen recorder like DemoCreator. So that teachers can make better screen recording documents, and they can be used for other classes or for the next year.
There is a sample video tutorial to show you how to add audio file to PowerPoint.http://www.sameshow.com/democreator/article/screen-recording-training.html#107 |
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| Keywords |
screen recording, screen recording computer training, record screen as courseware, record the screen activity |
| Category |
Computers and Technology |
| Submission Date |
Dec 13, 2010 |
| Article Contact Name |
Adward Chan || send email to Adward Chan
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dzine it Web Design NY
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Dear Business Owner,
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dzine it, inc. ®
www.dzineit.net
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Process plant on turnkey basis
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Mechanical engineering is the hart of our industries with it we can’t think of our life. There are many such part of mechanical engineering like food machinery, steel plant machinery, road making machinery, ship building machinery, Machinery for plastic and machinery for textile. Here we are going to introduce one such stream and one such organization which engaged in the development of such machineries i.e. Process Engineering
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Areas of Expertise :
» ADHESIVES Paper/ Packaging/ Leather/ Wood/ BOPP tapes/ Floor Tiles .
» BINDERS Paint/ Paper/ Leather/ Flocking & non woven.
» PAINTS Decorative/ Industrial & Automotive.
» RESINS Alkyd, Amino, PVA, Epoxy, UF & MF etc.
» PLASTICISERS DOP/ DBP, DMP etc.
» TEXTILES Auxiliary Chemicals, Sizing Agents, Blinders for Dyeing & Printing and finishing of Textiles.
» Waste oil processing in projects Plants on turnkey basis for waste oil/lube oil dewatering and processing.
Design Engineering
Complete Project Engineering and management :
• Preparation of equipment specification, sizing of utility and plant layout.
• P & ID drawings, piping & isomeric drawings.
• Detail mechanical design of various equipment such as Pressure vessels, Heat exchangers, Tanks, Filter, Dryer, Distillation column, Reactor, crystalliser, etc. observing various International codes like ASME SEC II, V, VIII, & IX, TEMA, API 650, ANSI B 31.3.
Process Plant on Turnkey Basis
• Emulsion Polymerization Plants to process: Textile Binders, softeners, sizing agent for
Dyeing/Printing and Finishing & Auxiliary chemicals.
• Adhesives for wood, paper, floor tiles, Flocking and non –woven cloth, BOPP tapes
• Specialty chemicals for Leather industry
• Plasticisers such as DOP, DBP, DMP etc.
• Waste oil processing in projects : Plants on turnkey basis for waste oil/lube oil dewatering and processing
System Engineers manufactures Process equipment in Carbon steel, Alloy steel, stainless steel types: SA 516 GR 60, 70, SA 240- TP 304,316,321 etc. Equipment offered are:
Storage Vessels & Reaction Vessels
• As per ASME codes. The storage vessels are made in capacity ranging from 5000 lt. To
100,000 lt. Both in horizontal as well as vertical construction.
• Agitated vessels: Vessels with jacket/limpet/internal coil. Vessels with different types of
stirrers: Anchor, propeller, turbine etc.
• Multi shaft specialized dispersion vessels.
System Engineers Storage Calorifiers offer vast rage for Industrial and Domestic Hot water supply systems. Specially designed Very High efficiency Heat Exchanger provide most Economical solutions. System Engineers Calorifiers would use various different Primary Heating Systems.
Low temperature hot water is the most common means of heating. Flows are usually based on a temperature drop of 11°C(from 8271°c)
Medium temperature hot water systems are generally designed on a temperature drop 30°C (from 12090°C).
High temperature hot water systems are generally y designed on a temperature drop of 40°C (from 150110°C).Another important factor in the selection of primary water heating systems is the working pressure. Where the primary working pressure is greater than the shell design pressure the calorifier must be fitted with a bursting disc sized in accordance with the requirements of BS 853. Primary water pressure drops are generally not greater than 25kPa.
Steams is an ideal medium for water heating. The heat exchangers can be designed to accommodate a wide range of pressures, although most users prefer to have calorifiers operating with pressures below 10 Bar g. Superheated steam can be accommodated and the degree of superheat should always be stated at the enquiry stage.
Thermal oils have the benefit of high temperature combined with low operating pressures. The heat exchangers are generally manufactured from stainless steel, depending on oil type.
At System Engineers, Calorifier vessel is Designed as per ASME code where as Heat Exchanger follows TEMA standards. System Engineers is Certified ISO 9001:2000 company, accordingly a full material trace ability is offered. Third party inspection control can be accommodated. This requirement must be stipulated at the quotation stage.
Commercial Calorifiers
All commercial calorifiers carry a name plate specifying the following:
- Date of Manufacture
- Maximum working pressure, test pressure
- Calorific Capacity
Stainless Steel Shells
Austenitic Stainless Steel SS 304L & 316L is suitable for storage calorifiers, it contains Chromium, Nickel, Molybdenum and has a low carbon content 0.003% to improve corrosion resistance after welding. The passivity and general corrosion resistance of Austenitic stainless steel is excellent but they do suffer from chloride attack.
Good manufacturing techniques and a correct post manufacture treatment to restore the stainless steel to its original properties can reduce the susceptibility but complete corrosion attack can not be prevented.
U-Tube Battery For Calorifier
This is the most common type of heat exchanger used in calorifier manufacturing. High efficiency tubes unaffected by thermal expansion provide extremely high levels of reliability. To ensure a high heat transfer capacity a wide range of multi-pass exchangers are available. Standard bundle arrangements are manufactured from 20mm tube although other diameters are used depending upon the duty requirement. Tubes are generally welded into the tube plates. For tube bundles with straight lengths greater than 1250mm support baffles are fitted as standard. In order to ease disassembly batteries greater than 350mm in diameter are fitted with a tapped hole to accept a lifting eye. In addition runner wheels, collar bolts and starting screws can be supplied. Tubes are available in copper & stainless steel.
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