Abstract: An illuminant device with over-temperature protection is electrically connected to a power source and includes a housing, a illuminant element, a resistor, and an over-temperature protective element. The housing includes an upper portion, a lower portion opposite to the upper portion, and two accommodating spaces communicating with the upper end and the lower end respectively. The illuminant element is placed on the upper portion. The resistor is located within one of the accommodating space and electrically connected to the illuminant element. The over-temperature protective element is located within the other accommodating space and electrically connected to the illuminant element. The over-temperature protective element senses temperatures of the illuminant element and selectively breaks the power source, such that the illuminant element is switched between conductive and non-conductive.

Abstract: An illuminant device includes a housing, a circuit board, a plurality of LED dies, a light-transmitting layer, a controlling and driving module and a conductive connector. One end of the housing has a carrying part. The circuit board is disposed on the carrying part and has a circuit layer. The LED dies are placed on the circuit board and electrically connected to the circuit layer. The light-transmitting layer is circularly disposed on the circuit board and covering the LED dies. The controlling and driving module is placed on the circuit board and electrically connected to the circuit layer. The conductive connector is assembled with the other end of the housing and electrically connected to the circuit layer.

Abstract: A method of using high temperature plasma to disintegrate waste containing titanyl phthalocyanine (TiOPc) comprises heating a mixture of titanyl phthalocyanine (TiOPc), a vitrifying material and optionally selected waste soil to a temperature of 1,220° C. to 10,000° C. until the mixture becomes a molten lava. The plasma breaks down the titanyl phthalocyanine and encapsulates the benign products in the lava that is chemically very stable. Since the titanyl phthalocyanine (TiOPc) is disintegrated completely in the process, the titanyl phtbalocyanine (TiOPc) no longer represents a threat to the environmental.

Abstract: A method of using high temperature plasma to disintegrate waste containing titanyl phthalocyanine (TiOPc) comprises heating a mixture of titanyl phthalocyanine (TiOPc), a vitrifying material and selected waste soil to a temperature of 1,220° C. to 10,000° C. until the mixture becomes molten lava. The plasma breaks down the titanyl phthalocyanine and encapsulates the benign products in the lava that is chemically very stable. Since the titanyl phthalocyanine (TiOPc) is disintegrated completely in the process, the titanyl phthalocyanine (TiOPc) no longer represents a threat to the environmental.

Abstract: A melting plasma method for treatment of Alq3 organic waste has steps of (a) providing an organic waste comprising Alq3; (b) heating the Alq3 organic waste provided in step (a) by melting plasma; and (c) obtaining a non-toxic organic solid lava which does not have any Alq3.

Abstract: A sampling device has a closed housing, a split-barrel sampler, an anvil, a drop hammer and a lifting device. The split-barrel sampler is mounted in and extends out from the bottom end of the housing. The anvil is attached to the top of the split barrel sampler. The drop hammer is moveably mounted in the housing and is located above the anvil. The lifting device is mounted in the top end of the closed housing to lift the drop hammer to a specific height above the top of the anvil. With the sampling device, the impact energy generated by the hammer is directly transmitted to the sampler through the anvil. The impact energy lost is minimized, and the accuracy of the Standard Penetration Test result is improved.

Abstract: A method for preparing ester end-capped polyalkylene ether is disclosed. Cyclic ether monomers are subjected to ring-opening polymerzation at a temperature of 20.degree.-80.degree. C. and a pressure of 0-10 atm in the presence of a solid acid serving as catalyst and a mixture of acid and acid anhydride serving as a promoter. The solid acid is an oxide of group III and group IV elements and has been modified by sulfuric acid, ammonium sulfate or ammonium sulfite.

Abstract: A method for preparing ester end-capped polyalkylene ether is disclosed. Cyclic ether monomers are subjected to ring-opening polymerization at a temperature of 10.degree.-80.degree. C. and a pressure of 0-10 atm in the presence of a solid acid of a mixed oxide of group III and group IV elements serving as catalyst and a mixture of acid and acid anhydride serving as molecular weight moidifier. The group III and group IV elements used should have a Ho index of +3.0 to -10.0.