Abstract:
본발명은로듐이함유된카본나이트라이드불균일계촉매, 그의제조방법및 이를이용한아세트산의제조방법에관한것이다. 본발명에따른카본나이트라이드지지체에로듐이함유된불균일계촉매는종래반응물과촉매의상이동일한균일계촉매반응과다르게, 물또는알코올과같은액체성용매에용해되지않는지지체인카본나이트라이드지지체에로듐금속이포함되어있어, 여과와같은단순공정만으로도촉매와생성물간의분리가용이하여종래균일계촉매를사용한공정에서의단점을극복할수 있고, 로듐의리칭되는현상을최소화할수 있어, 종래균일계촉매반응의결과대비촉매의장기적안정성및 활성도가우수하므로, 메탄올과일산화탄소의카르보닐화반응을통한아세트산의제조에유용하게사용될수 있다.
Abstract:
PURPOSE: A smart phone based laborer attendance managing system and an attendance managing method thereof are provided to transmit photographed photos to a management server after photographing laborers in a construction field by using a smart phone, thereby processing attendance processing in real time in a long distance. CONSTITUTION: A database unit(31) stores uploaded attendance information of laborers. An attendance alarm means(32) transmits an alarm message about whether or not attendance of a laborer corresponding to a login identification to a smart phone. An identification processing means(33) uploads a face photo, a location coordinate, and photographing time to attendance information about the laborer corresponding to the login identification. [Reference numerals] (31) Database unit; (31a) Output information; (31b) Safety management information; (32) Unit for informing whether to output; (33) Output processing unit
Abstract:
The present invention relates to a shielding device for partial investment of radiation comprising a source which irradiates the radiation and a shielding member which shields the remaining part to irradiate the radiation only to a tested object. Provided is the shielding device capable of the partial investment of the tested object by irradiating the radiation only to a part of the tested object to be irradiated. The present invention is provided to be used with a radiation irradiation facility (60Co Therapy, CyberKnife: collimated source) which is generally used in an existing medical institution, thereby offering the shielding device capable of using individual radiation beam.
Abstract:
본발명은로듐이함유된카본나이트라이드불균일계촉매, 그의제조방법및 이를이용한아세트산의제조방법에관한것이다. 본발명에따른카본나이트라이드지지체에로듐이함유된불균일계촉매는종래반응물과촉매의상이동일한균일계촉매반응과다르게, 물또는알코올과같은액체성용매에용해되지않는지지체인카본나이트라이드지지체에로듐금속이포함되어있어, 여과와같은단순공정만으로도촉매와생성물간의분리가용이하여종래균일계촉매를사용한공정에서의단점을극복할수 있고, 로듐의리칭되는현상을최소화할수 있어, 종래균일계촉매반응의결과대비촉매의장기적안정성및 활성도가우수하므로, 메탄올과일산화탄소의카르보닐화반응을통한아세트산의제조에유용하게사용될수 있다.