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What is thermal break

2016-10-12 16:33:49 | 高齢社会
A thermal break or thermal barrier is an element of low thermal conductivity placed in an assembly to reduce or prevent the flow of thermal energy between conductive materials.
In architecture and building construction some examples include the following:
1. a thermal break is also a load-bearing thermal insulation system used in reinforced concrete structures to form a thermal break between cantilever structures and internal floor.
2.Insulated glazing – the air or gas between the panes stops the conductive thermal energy from passing through the glass.
3.Metal window or curtain wall framing – a separator material is used between the inner and outer frames to prevent the temperature transfer through the frame and condensation on the inside frame.
4.Concrete work – a single row of concrete masonry units (CMU block) is commonly set between the inner concrete slab and exterior concrete work to prevent the transfer of heat or cold through the slab.
5.Garage doors – in some doors that have high R-rating insulation, a vinyl thermal break is used along the edges of each segment instead of rolled steel.
6.Metal and wood framed buildings - an insulation material installed on the roof, walls and floor prevents thermal short circuit creating the heat transfer through the framing material and controls when desired (winter/summer)resulting in energy savings.
7.Metal windows and doors - separating the frame into two separate interior and exterior pieces joined with a less conductive material reduces temperature transfer. Thermal breaks (made of substantially rigid, low thermal conductivepolyamide or polyurethane which is mechanically locked in aluminum window framing can be more than a thousand times less conductive than aluminum and a hundred times less than steel.
8.Windows and doors - separating the frame into 2 separate interior and exterior pieces joined with a less conductive material between reduces temperature transfer. In addition thermal breaks can have the added benefit of reducing sound transmittance by dampening vibration.

Hot New Portable Cell Phone Jammer SA-008P

2016-10-12 16:26:07 | 高齢社会
Hello everyone, here I introduce our new 8 bands portable mobile phone signal jammer SA-008P. This cell phone blocker can jam GPS, Lojack, Wifi, 4G and etc. The total output power is 8Watt.

Features
★The latest 8 antennas portable Jammer,Have good Jamming for all mobile phone 2G,3G,4G signal and WI-FI2.4G/GPSL1 bands.
★Total output power: 4W Jamming range up to 20m
★Use External Omni-directional antennas,all the TX frequency covered down link only
★The latest design and Good cooling system with cooling fan inside
★Could be chargered in car with DC12V
★Can turn on or off any single band without influencing the other bands operation
★ Built-in Battery:4000mA/h,Charge full time within 4Hours,Working time:1-2Hours.
★ODM and OEM orders are welcome,,You can select any 8 bands for your require,GPSL2-L5,433MHz 315Mhz.etc,The price maybe different.


HOW TO CHOOSE CORRECT CO2 GLASS LASER TUBE FOR YOUR MACHINE

2016-10-12 16:26:07 | 高齢社会
Most end customers have no idea about which laser tube is the right one for their laser cutting & engraving machines when they want to replace the old tube, even they have been using laser cutting & engraving laser machines.


There are more than thousands of laser cutting/engraving machine suppliers in the world, but there is no international standard to define a laser tube power. Even for same size laser tube, different suppliers could tell you different laser power. For example, L1200*D50mm 60w laser tube, actually most suppliers say it is 60w, and some suppliers say it is 65watt, 70watt, even 80watt. Thus it happens a lot some customers don’t get a correct laser tube, it can be size problem, or the new tube cannot cut as thick material as the old one.

We, SPT laser, as one of the professional co2 laser tube manufacturers in China, deeply know that the laser tube power is defined when the tube length and diameter are assured in production. E.g. the rated power of a L1200*D50mm laser tube must be 60w, no other possibilities. Thus the easist way for customers to tell the laser tube power is by tube length and diameter. You could just choose the tube according to the size of the old tube on laser machine if you have no interest into its real power when buying a new one. This saves you much time and trouble.


NOTE: Different manufacturer produces laser tube with different peak power.

1. 50w co2 laser tube, length 1000mm, diameter 50mm

2. 60w co2 laser tube, length 1200mm, diameter 50mm

3. 70w co2 laser tube, length 1250mm, diameter 55mm

4. 80w co2 laser tube, length 1600mm, diameter 60mm

5. 90w co2 laser tube, length 1250mm, diameter 80mm

6. 100w co2 laser tube, length 1450mm, diameter 80mm

7. 130w co2 laser tube, length 1650mm, diameter 80mm

8. 150w co2 laser tube, length 1850mm, diameter 80mm



Organic electronics is already changing technology as we know it

2016-10-12 16:20:06 | 高齢社会
One day, your latest gadget won’t be in your pocket like a phone or even wrapped around your wrist like a smart watch, but stuck to your skin like a transparent plaster. Researchers at the University of Tokyo are the latest group to attempt to make this kind of “optoelectronic skin”, with an ultra-thin, flexible LED display that can be worn on the back of your hand.
What makes this possible is the field of “organic electronics”, which can also be used to create a range of technologies from printed solar cells to computer screens you can roll up and put in your pocket. The name comes from the use of “organic” semiconductors, which are made with materials based on carbon rather than silicon as in conventional electronics. And while optoelectronic skins are still being developed – organic electronics are already changing the technology we buy.
Organic semiconductor materials typically come in two forms: as a small molecule consisting of a few tens or hundreds of atoms, or as long chains of thousands of repeating molecules (a plastic). The latter is particularly interesting, because we don’t normally think of plastics as conductors of electricity. But during the 1970s researchers realised they could make some plastics act as conductors, and some as semiconductors (which conduct electricity only under certain conditions).
For many years the electrical performance of semiconducting plastics and small molecules has lagged behind the inorganic (non-carbon based) semiconductors that underlie many of our modern computer chips. But thanks to continued research and development there are now organic semiconductors with good enough performance that they are starting to be commercialised in new and exciting applications.
The chemistry of organic semiconductors can be modified in ways that are impossible with materials such as silicon. Organic semiconductors can be made to be soluble, and can be turned into an ink. This means it’s possible to print electronic circuits, with the potential to manufacture components as fast as printing newspapers. And because they’re based on plastic materials, these circuits can also be made flexible and so no longer need to sit inside rigid boxes.
Another application for OLEDs are in displays. They are particularly popular with TV manufacturers because they generate light directly and so don’t need the white backlight and filters that are found in other technologies, meaning the overall display can be thinner. They also open the possibility of making flexible led screen and several electronics manufacturers are expected to launch bendable products in the next few years, although this is not without its challenges.
Flexible displays rely upon electronic switches known as transistors. These organic field-effect transistors are also made from organic semiconductors. Behind each OLED pixel in the display is an OFET, ready to turn it on and off as required. OFETs work by having three electrical connections: the gate, source and drain. A voltage applied to the gate makes the semiconductor either more or less conductive. This either allows or prevents electrical current from flowing between the source and drain.

Organic electronics is already changing technology as we know it

2016-10-12 16:20:06 | 高齢社会
One day, your latest gadget won’t be in your pocket like a phone or even wrapped around your wrist like a smart watch, but stuck to your skin like a transparent plaster. Researchers at the University of Tokyo are the latest group to attempt to make this kind of “optoelectronic skin”, with an ultra-thin, flexible LED display that can be worn on the back of your hand.
What makes this possible is the field of “organic electronics”, which can also be used to create a range of technologies from printed solar cells to computer screens you can roll up and put in your pocket. The name comes from the use of “organic” semiconductors, which are made with materials based on carbon rather than silicon as in conventional electronics. And while optoelectronic skins are still being developed – organic electronics are already changing the technology we buy.
Organic semiconductor materials typically come in two forms: as a small molecule consisting of a few tens or hundreds of atoms, or as long chains of thousands of repeating molecules (a plastic). The latter is particularly interesting, because we don’t normally think of plastics as conductors of electricity. But during the 1970s researchers realised they could make some plastics act as conductors, and some as semiconductors (which conduct electricity only under certain conditions).
For many years the electrical performance of semiconducting plastics and small molecules has lagged behind the inorganic (non-carbon based) semiconductors that underlie many of our modern computer chips. But thanks to continued research and development there are now organic semiconductors with good enough performance that they are starting to be commercialised in new and exciting applications.
The chemistry of organic semiconductors can be modified in ways that are impossible with materials such as silicon. Organic semiconductors can be made to be soluble, and can be turned into an ink. This means it’s possible to print electronic circuits, with the potential to manufacture components as fast as printing newspapers. And because they’re based on plastic materials, these circuits can also be made flexible and so no longer need to sit inside rigid boxes.
Another application for OLEDs are in displays. They are particularly popular with TV manufacturers because they generate light directly and so don’t need the white backlight and filters that are found in other technologies, meaning the overall display can be thinner. They also open the possibility of making flexible led screen and several electronics manufacturers are expected to launch bendable products in the next few years, although this is not without its challenges.
Flexible displays rely upon electronic switches known as transistors. These organic field-effect transistors are also made from organic semiconductors. Behind each OLED pixel in the display is an OFET, ready to turn it on and off as required. OFETs work by having three electrical connections: the gate, source and drain. A voltage applied to the gate makes the semiconductor either more or less conductive. This either allows or prevents electrical current from flowing between the source and drain.