From original kilogram several jiao Qian Dao a holding frequently over ten thousand Yuan, accompany the price which now flies suddenly rises suddenly, the Taishan jade are becoming the hot spot which once more people pay attention. Recently, the CCTV related Guangdong Taishan jade during several years rose suddenly several hundred time of reports the Taishan jade to push to again people's field of vision,
LED Tube Light
but regarding rise suddenly the Taishan jade, takes its habitat Taishan, what state at present develops? Which factors behind the price has to become the price hand slap? As will the jade market's rising star, what rely on with jade in and so on Huanglong jade competitions to make own brand influence? In the future the Taishan jade market will develop toward what kind of direction?
In this report, reporter will penetrate into the Taishan jade habitat, inquired about the Taishan jade the development present situation, faces at present the question and so on, as well as the local market state of play and so on, demonstrated diligently gives the reader a real Taishan jade.
Origin: Over a billion year geologic activity fermentation jade treasure Along the western coast high speed from Taishan under steep export high speed,HTPC Keyboard
276 walks more than 30 minutes again after the provincial road toward the south, arrived at the Taishan jade to produce that qin dike.
That qin dike, located at Taishan's west south tip, the surface dynasty sea, behind is the sierra which winds to fluctuate, besides the beautiful beach, that qin dike's jade is richly colorful, the quartz, the request handkerchief stone, the fluorspar, the Taishan jade and various natural ornamental stone might find the trace in here, that qin is called by the Guangdong valuable jade expert the southern part of China “the treasure vase”.
It is reported that the Taishan jade mineral lode produces in area 40 square kilometer multiple granite mountain massifs, the granite, the multiple rock mass, periphery cambrian series eight village group constitutions and so on mica schist, cloud UK schist, the mix lithification is intense. In the rock mass the granite arteries, the aplitic dyke, the micrite dike, the quartz dike growth is rich.Android TV Keyboard The Taishan jade namely produces in the hydrothermal alternately dike, quartz, request handkerchief Shi Chanyu in micrite dike, but the yellow agalmatolite namely produces inside the quartz dike.
According to Taishan spirit jade Chinese style pavilion Tibet Ms. He Xueer introduced that the Taishan jade's formation may trace over a billion years ago, mainly only then has in the offshore region. She introduced that along with the dike after the long earth's crust change, the dike is dispersed, silting alluviation to the mountain massif indentation place, because long-term ground water and surface water immersion, in addition numerous mineral substance and so on silicon, iron fusion reasons, achievement Taishan jade. But on the mountain rock is the identical landform freely with the Taishan jade, but because actually does not have the moisture content to moisten and so on reasons not to be able to accomplish today's jade. Development: All the people development “washes the jade” the army
2011年9月27日星期二
2011年9月7日星期三
important besides
Because LED driver electric circuit (including many diodes, transformer and capacitor) the performance cannot be the same with the pure resistance load, therefore its PFC possible to lower to 0.5. To enhance PFC to is higher than 0.9, active or the passive PFC electric circuit must design in the LED driver electric circuit. Should also mention a spot is, in the utilization massive LED illumination array's application, high PFC is especially important.
For example, in the use surpasses several hundred 50W the LED lamp to stop in the garage, the high PFC(>0.95) LED driver design will be very advantageous.LED Spot Lights
is very important besides high PFC, maximum limit reduces the LED lamp's overtone degree of distortion to be very also important. The international electrician committee (International Electrotechnical Commission) had already drawn up the IEC 61000-3-2 C kind of lighting attachment overtone standard, guaranteed that the new LED lighting system satisfies these to distort the request lowly.
In the illumination application, can in the wide line input voltage, the output voltage and in the temperature change scope adjusts the LED electric current be accurately very important, because the LED brightness's change must be the human eye realizes with difficulty.LED Flood Lights
Similarly, to guarantee that LED has the longest working life, does not need to be higher than its most large quantity definite value the electric current to actuate LED is also very important.
In the isolation instead stirs up-like in the application to adjust the LED electric current not always to be very simple, but frequently needs the feedback loop which an optical coupler closes needs, possibly or must increase an extra transformation level. However, these two methods increased the complexity and the reliable question.
What is lucky,LED Ceiling Lights
some LED the IC driver design has used the new design method, guaranteed that does not need these extra modules and/or increases the design complexity, can adjust the LED electric current accurately. must transit very quickly from the incandescent lamp to the LED lamp, one of faced with biggest barriers is based on the LED solution cost and the size.
The consumer is accustomed to payment less than 0.50 US dollar replaces 60W the incandescent lamp, pays about 3 US dollars to replace a similar wattage the CFL lamp. The payment surpasses 30 US dollars to replace a LED lamp, is a big barrier which the consumer must overcome.
By such price calculation, in the LED average life, the economical electrical energy and the replacement cost compares, changes into the LED lamp to have the economic significance truly.
However,Patch Panel Manufacturer
the majority consumers are not accustomed to relate like this look at the question. Generally speaking, the warehouse, will stop the garage and so on because to illuminate especially pays the high quota energy bill the Commercial department to use the LED illumination quickly,哮喘 because the expense will save is more obvious. Along with the LED lamp purchasing expense's drop, will have more consumers to be willing to change the LED illumination.
Last similarly important factor is, LED illumination solution size. Many flares are the direct precession lamp holder may replace, DVB-T TUNER therefore the entire LED solution must be able to load into with in the original incandescent lamp volume and the shape same space.
LED needs a radiator and is more complex much the driver electric circuits, therefore enters with the incandescent lamp volume and the shape same space Chinese dress including these two partial entire LED solution, possibly is a challenge. Therefore, needs LED driver IC must be able, in simple, occupies in the board area compact solution to provide all these needs the function and the characteristic. One kind of new solution
For example, in the use surpasses several hundred 50W the LED lamp to stop in the garage, the high PFC(>0.95) LED driver design will be very advantageous.LED Spot Lights
is very important besides high PFC, maximum limit reduces the LED lamp's overtone degree of distortion to be very also important. The international electrician committee (International Electrotechnical Commission) had already drawn up the IEC 61000-3-2 C kind of lighting attachment overtone standard, guaranteed that the new LED lighting system satisfies these to distort the request lowly.
In the illumination application, can in the wide line input voltage, the output voltage and in the temperature change scope adjusts the LED electric current be accurately very important, because the LED brightness's change must be the human eye realizes with difficulty.LED Flood Lights
Similarly, to guarantee that LED has the longest working life, does not need to be higher than its most large quantity definite value the electric current to actuate LED is also very important.
In the isolation instead stirs up-like in the application to adjust the LED electric current not always to be very simple, but frequently needs the feedback loop which an optical coupler closes needs, possibly or must increase an extra transformation level. However, these two methods increased the complexity and the reliable question.
What is lucky,LED Ceiling Lights
some LED the IC driver design has used the new design method, guaranteed that does not need these extra modules and/or increases the design complexity, can adjust the LED electric current accurately. must transit very quickly from the incandescent lamp to the LED lamp, one of faced with biggest barriers is based on the LED solution cost and the size.
The consumer is accustomed to payment less than 0.50 US dollar replaces 60W the incandescent lamp, pays about 3 US dollars to replace a similar wattage the CFL lamp. The payment surpasses 30 US dollars to replace a LED lamp, is a big barrier which the consumer must overcome.
By such price calculation, in the LED average life, the economical electrical energy and the replacement cost compares, changes into the LED lamp to have the economic significance truly.
However,Patch Panel Manufacturer
the majority consumers are not accustomed to relate like this look at the question. Generally speaking, the warehouse, will stop the garage and so on because to illuminate especially pays the high quota energy bill the Commercial department to use the LED illumination quickly,哮喘 because the expense will save is more obvious. Along with the LED lamp purchasing expense's drop, will have more consumers to be willing to change the LED illumination.
Last similarly important factor is, LED illumination solution size. Many flares are the direct precession lamp holder may replace, DVB-T TUNER therefore the entire LED solution must be able to load into with in the original incandescent lamp volume and the shape same space.
LED needs a radiator and is more complex much the driver electric circuits, therefore enters with the incandescent lamp volume and the shape same space Chinese dress including these two partial entire LED solution, possibly is a challenge. Therefore, needs LED driver IC must be able, in simple, occupies in the board area compact solution to provide all these needs the function and the characteristic. One kind of new solution
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