YBA CUO-type superconducting material based apparatus for auto-filling
liquid nitrogen
    51.
    发明授权
    YBA CUO-type superconducting material based apparatus for auto-filling liquid nitrogen 失效
    YBA CUO型超导材料自动灌装液氮装置

    公开(公告)号:US5552371A

    公开(公告)日:1996-09-03

    申请号:US245224

    申请日:1994-05-17

    IPC分类号: G01F23/24

    摘要: An apparatus and method for continuously monitoring the liquid nitrogen level a liquid nitrogen container and automatically refilling liquid nitrogen from a liquid nitrogen reservoir when the liquid nitrogen in the container falls below a predetermined level. The apparatus comprises a liquid nitrogen level sensing element, which contains a superconducting material, such as a YbaCuO type superconductiing material, disposed on a non-conducting substrate, such as magnesium oxide. The superconducting material is selected such that it has a critical temperature approximately equal to the boiling point temperature of liquid nitrogen. The superconducting material is placed near the predetermined level and, under normal conditions, the superconducting material exhibits zero or near zero resistance. When the level of liquid nitrogen falls below the predetermined level due to heat loss or other reasons, the resistance of the superconducting material will increase substantially, thus triggering a control means to open a solenoid valve and allow liquid nitrogen to flow from the reservoir to the container. The liquid nitrogen level sensing element can be prepared by photochemically etching a superconducting layer, which has been deposited on the non-conducting substrate, in accordance with a serpentine design, to thereby increase the sensitivity and reliability thereof.

    摘要翻译: 一种用于在容器内的液氮下降到预定水平以下时,液氮容器连续地监测液氮容器并自动从液氮储液器再充填液氮的装置和方法。 该装置包括液氮传感元件,其含有设置在诸如氧化镁的非导电衬底上的超导材料,例如YbaCuO型超导材料。 选择超导材料使其具有近似等于液氮沸点温度的临界温度。 超导材料放置在预定水平附近,并且在正常条件下,超导材料表现为零或接近零电阻。 当液态氮由于热损失或其他原因而降到预定水平以下时,超导材料的电阻将显着增加,从而触发一个控制装置来打开一个电磁阀,并允许液氮从贮存器流到 容器。 液氮检测元件可以通过根据蛇形结构对已经沉积在非导电基底上的超导层进行光化学蚀刻来制备,从而提高其灵敏度和可靠性。

    Citrate/ethylenediamine gel method for forming high temperature
superconductors
    53.
    发明授权
    Citrate/ethylenediamine gel method for forming high temperature superconductors 失效
    用于形成高温超导体的柠檬酸盐/乙二胺凝胶法

    公开(公告)号:US5066636A

    公开(公告)日:1991-11-19

    申请号:US567940

    申请日:1990-08-15

    摘要: A citrate/ethylenediamine gel method for forming oxide superconductors of the Y-Ba-Cu-O, Bi-Ca-Sr-Cu-O, Tl-Ca-Ba-Cu-O system by employing the nitrates of the individual metals and citric acid. Ethylenediamine is then added to form gels. These materials then undergo calcination and sintering processes. The respective superconductors obtained possess a superconducting zero resistance temperature at 93K, 78K and 118K respectively.

    摘要翻译: 通过使用各种金属和柠檬酸的硝酸盐,形成Y-Ba-Cu-O,Bi-Ca-Sr-Cu-O,Ti-Ca-Ba-Cu-O系的氧化物超导体的柠檬酸盐/乙二胺凝胶法 酸。 然后加入乙二胺以形成凝胶。 然后,这些材料经历煅烧和烧结过程。 获得的各超导体分别具有93K,78K和118K的超导零电阻温度。

    Phosphor
    55.
    发明授权
    Phosphor 有权

    公开(公告)号:US08471460B1

    公开(公告)日:2013-06-25

    申请号:US13440322

    申请日:2012-04-05

    IPC分类号: H01J1/62

    摘要: A phosphor comprising an oxynitride compound having a chemical formula of A2-mE3O2N4:Mm, wherein A comprises an alkaline-earth element, E comprises a IVA group element, M is an activator comprising a bivalent rare-earth element, and 0.00001≦m≦1.0, wherein A is at least one element selected from the group consisting of Mg, Ca, Sr and Ba; E is at least one element selected from the group consisting of C, Si, Ge, and Sn; and M is at least one element selected from the group consisting of Lu, Sc, La, Gd, Tb, Eu, and Sm.

    摘要翻译: 一种包含化学式为A2-mE3O2N4:Mm的氧氮化物化合物的荧光体,其中A包含碱土元素,E包含IVA族元素,M是包含二价稀土元素的活化剂,和0.00001 @ 1.0,其中A是选自Mg,Ca,Sr和Ba中的至少一种元素; E是选自C,Si,Ge和Sn中的至少一种元素; M是选自Lu,Sc,La,Gd,Tb,Eu和Sm中的至少一种元素。

    TUNABLE PHOSPHOR FOR LUMINESCENT
    56.
    发明申请
    TUNABLE PHOSPHOR FOR LUMINESCENT 有权
    用于发光的TUNABLE磷光体

    公开(公告)号:US20120256212A1

    公开(公告)日:2012-10-11

    申请号:US13084135

    申请日:2011-04-11

    IPC分类号: H01L33/44 C01B33/00 C09K11/80

    摘要: The present disclosure provides an illuminating system including a light emitting diode (LED); and a tunable luminescent material disposed approximate the light-emitting diode, wherein the tunable luminescent material includes alkaline earth metal (AE) and silicon aluminum nitride doped by a rare earth element (RE), formulated as (AE)Si6−pAlpN8, wherein p is a parameter defining a relative aluminum content in weight and p is greater than zero.

    摘要翻译: 本公开提供了一种包括发光二极管(LED)的照明系统; 以及配置在发光二极管附近的可调发光材料,其中可调谐发光材料包括由稀土元素(RE)掺杂的碱土金属(AE)和氮化硅铝,其被配制为(AE)Si6-pAlpN8,其中p 是定义重量相对铝含量的参数,p大于零。

    NITRIDOSILICATE PHOSPHOR TUNABLE LIGHT-EMITTING DIODES BY USING UV AND BLUE CHIPS
    58.
    发明申请
    NITRIDOSILICATE PHOSPHOR TUNABLE LIGHT-EMITTING DIODES BY USING UV AND BLUE CHIPS 有权
    使用紫外线和蓝色荧光灯的氮化硅磷光体发光二极管

    公开(公告)号:US20120132936A1

    公开(公告)日:2012-05-31

    申请号:US12956244

    申请日:2010-11-30

    IPC分类号: H01L33/08 H01L33/32 H01L33/60

    摘要: The present disclosure provides a radiation device. The radiation device includes a first light emitting diode (LED) operable to emit light having a first central wavelength; a second LED configured adjacent the first LED and operable to emit light having a second central wavelength substantially less than the first central wavelength; and a luminescent material disposed on the first LED and the second LED. The luminescent material includes a strontium silicon nitride (SrSi6N8) doped by one of cerium (Ce3+) and cerium, lithium (Ce3+, Li+).

    摘要翻译: 本公开提供了一种辐射装置。 辐射装置包括可操作以发射具有第一中心波长的光的第一发光二极管(LED) 第二LED,其被配置为与所述第一LED相邻,并且可操作以发射具有基本上小于所述第一中心波长的第二中心波长的光; 以及设置在第一LED和第二LED上的发光材料。 发光材料包括由铈(Ce 3+)和铈,锂(Ce 3+,Li +)中的一种掺杂的氮化硅锶(SrSi 6 N 8)。