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公开(公告)号：KR1020090044800A
公开(公告)日：2009-05-07
申请号：KR1020070111051
申请日：2007-11-01
Applicant: 삼성전기주식회사 , 재단법인서울대학교산학협력재단
CPC classification number: C09K11/7738 , C09K11/73 , C09K11/76
Abstract: 본 발명은 100 내지 3000nm의 평균 입경을 갖는 인산계 나노 형광체를 제공한다. 또한, 본 발명은 (a) 2종 이상의 금속 전구체 화합물들을 물에 용해하고, pH를 조절하여 pH 4 내지 10의 수용액을 준비하는 단계; (b) 상기 수용액을 pH 7 내지 12로 조절된 인산 전구체 수용액과 혼합하여 공침시키는 단계; 및 (c) 상기 공침시키는 단계로부터 얻은 입자를 물 또는 폴리올 용매에 다시 분산시킨 다음 열처리하는 단계를 포함하는 나노 형광체 제조 방법을 제공한다.
상기 본 발명에 따른 인산계 나노 형광체는 발광 효율이 우수하다
나노 형광체, 리버스 스트라이크 공침법-
公开(公告)号：KR1020090128809A
公开(公告)日：2009-12-16
申请号：KR1020080054760
申请日：2008-06-11
Applicant: 재단법인서울대학교산학협력재단
IPC: B63B35/32
Abstract: PURPOSE: A propeller and a red tide eliminating apparatus including the same are provided to spread a particulate material on at least a part of blades of the propeller, thereby increasing the surface roughness of the blades and effectively eliminating red tide. CONSTITUTION: A propeller comprises a hub(11) and a plurality of blades(13). The hub has a cylindrical shape. The blades are radially coupled to the hub. A particulate material(15) for enhancing surface roughness is spread on at least a part of the blades. The particulate material is silicon carbide or silicon dioxide. Each of the blades has a fixed pitch ratio. If the surface roughness of the leading edge of each blade is increased, the fluctuation of a fluid in the leading edge of each blade is increased. The creation of cavitation in the surface of the blades is promoted.
Abstract translation: 目的：提供包括螺旋桨和红潮消除装置的螺旋桨和红潮消除装置，以将颗粒材料散布在螺旋桨的叶片的至少一部分上，从而增加叶片的表面粗糙度并有效地消除红潮。 构成：螺旋桨包括轮毂（11）和多个叶片（13）。 轮毂具有圆柱形。 叶片径向耦合到轮毂。 用于增强表面粗糙度的颗粒材料（15）扩散在至少一部分叶片上。 颗粒材料是碳化硅或二氧化硅。 每个叶片具有固定的间距比。 如果每个叶片的前缘的表面粗糙度增加，则每个叶片的前缘中的流体的波动增加。 促进叶片表面产生气蚀。
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公开(公告)号：KR100743952B1
公开(公告)日：2007-08-30
申请号：KR1020060035473
申请日：2006-04-19
Applicant: 현대로템 주식회사 , 재단법인서울대학교산학협력재단
Abstract: A method for producing a sintered body of alumina-spinel composite powder is provided to obtain a bulletproof sintered ceramic body having a low weight, high density and high hardness. A method for producing a sintered body of alumina-spinel composite powder comprises the steps of: milling alumina and magnesium oxide into alumina powder and spinel-like nanopowder by way of a high energy milling process; heat treating the milled spinel-like nanopowder at 1100-1300 deg.C for 0.5-1 hour; mixing the heat treated spinel-like nanopowder with the alumina nanopowder; and adding inorganic additives to the mixed nanopowder and sintering the mixed nanopowder in the air at 1450-1550 deg.C for 2-6 hours.
Abstract translation: 本发明提供一种制备氧化铝 - 尖晶石复合粉末烧结体的方法，以获得重量轻，密度高，硬度高的防弹烧结陶瓷体。 一种生产氧化铝 - 尖晶石复合粉末烧结体的方法，包括以下步骤：通过高能研磨方法将氧化铝和氧化镁研磨成氧化铝粉末和尖晶石状纳米粉末; 在1100-1300℃热处理磨过的尖晶石样纳米粉末0.5-1小时; 将经热处理的尖晶石状纳米粉与氧化铝纳米粉混合; 在混合的纳米粉末中加入无机添加剂，并在1450-1550℃空气中将混合的纳米粉末烧结2-6小时。
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公开(公告)号：KR101015281B1
公开(公告)日：2011-02-15
申请号：KR1020080054760
申请日：2008-06-11
Applicant: 재단법인서울대학교산학협력재단
IPC: B63B35/32
Abstract: 본 발명은 프로펠러 및 이를 포함하는 적조 제거 장치에 관한 것이다. 보다 상세하게는, 본 발명은 적조 제거를 위해 보다 효과적으로 캐비테이션(cavitation, 공동현상)을 생성할 수 있는 프로펠러 및 이를 포함하는 적조 제거 장치에 관한 것이다. 프로펠러는 허브(hub), 그리고 복수의 블레이드(blade)를 포함한다. 복수의 블레이드는 상기 허브에 방사상으로 결합된다. 상기 블레이드의 앞전 중 적어도 일부에는 표면 거칠기(roughness)를 높이기 위한 입자성 물질이 도포된다.
적조, 프로펠러, 블레이드, 캐비테이션, 충격파, 입자성 물질, 피치비-
公开(公告)号：KR1020090080815A
公开(公告)日：2009-07-27
申请号：KR1020080006788
申请日：2008-01-22
Applicant: 재단법인서울대학교산학협력재단
IPC: B63B1/32
CPC classification number: Y02T70/12
Abstract: A cavitation reduction method of a fin and a rudder for a ship is provided to reduce the cavitation in thin layers occurring on a fin and a rudder by bending the front of a fin and a rudder for a ship actively according to the angle of attack, thereby to improve performance and to reduce corrosion by cavitation. A cavitation reduction method of a fin and a rudder for a ship is used for reducing cavitation by appointing the part which is 20~30 percents of the code length from the front as a front portion(21) and installing a control arm(25) for a front portion which is connected to a cam attached to a rotary shaft by a pin on the root of a steering gear, and bending the front portion actively when changing the angle of attack, thereby reducing a pressure gradient and separation on the surface of a fin and a rudder and making a flow smooth.
Abstract translation: 提供了一种用于船舶的翅片和方向舵的气蚀减少方法，以通过根据迎角来主动地弯曲船舶的翅片和船舵的前部来减少在翅片和舵上发生的薄层中的气蚀， 从而提高性能并减少气蚀引起的腐蚀。 用于船舶的翅片和方向舵的空化还原方法用于通过从前部指定代码长度为20〜30％的部分作为前部（21）并安装控制臂（25）来减少气蚀， 用于通过转向装置的根部上的销连接到附接到旋转轴的凸轮的前部，并且当改变迎角时主动弯曲前部，从而减小压力梯度和表面上的分离 翅膀和方向舵，使流动平稳。
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Patent Agency Ranking
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公开(公告)号：KR101761945B1
公开(公告)日：2017-07-26
申请号：KR1020120118460
申请日：2012-10-24
Applicant: 삼성전기주식회사
Abstract: 본발명은적층커패시터에관한것으로, 적층누적에의한응력을완화하기위하여, 제1 내부전극이인쇄된세라믹시트및 제2 내부전극이인쇄된세라믹시트가교대로복수개 적층되어이루어진세라믹본체와, 상기세라믹본체의양 측부에구비된한 쌍의외부단자로구성된적층커패시터에있어서, 상기세라믹시트의상측선과상기제1 내부전극의상측선사이의간격(W1)은상기세라믹시트의상측선과상기제2 내부전극의상측선사이의간격(W2)과다르고, 상기세라믹시트의하측선과상기제1 내부전극의하측선사이의간격(W3)은상기세라믹시트의하측선과상기제2 내부전극의하측선사이의간격(W4)과다른적층커패시터를제시한다.
Abstract translation: 本发明涉及一种层叠电容器，以将应力松弛由于层叠，层叠时，第一内部电极是多个层叠的陶瓷片和第二内部电极是由陶瓷体的陶瓷片的交联印刷，该陶瓷 并且，在主体的两侧部设置有一对外部端子，陶瓷片外轮廓线与第一内部电极轮廓线（W1）之间的间隙（W1） 过载的横向线（W2），之间的距离，其中，所述第一内部电极的（W3）之间的较低的运输间隔第二内部电极对另一eunsanggi陶瓷片（W4）的下端线之间较低的运输间隔的陶瓷片的下部线 展示了一个叠层电容器。
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公开(公告)号：KR1020140103704A
公开(公告)日：2014-08-27
申请号：KR1020130017463
申请日：2013-02-19
Applicant: 삼성전기주식회사
Abstract: The present invention relates to a pressing device for a ceramic laminate. A pressing device for a ceramic laminate according to one embodiment of the present invention includes a pressing plate which is arranged on one surface of a ceramic laminate; and a vacuum packing member which packs the pressing plate and the ceramic laminate. According to one embodiment of the present invention, the pressing plate includes an air concentration hole.
Abstract translation: 本发明涉及一种陶瓷层叠体的加压装置。 根据本发明的一个实施方案的用于陶瓷层压体的压制装置包括布置在陶瓷层压板的一个表面上的压板; 以及包装压板和陶瓷层压板的真空包装件。 根据本发明的一个实施例，压板包括空气浓缩孔。
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公开(公告)号：KR1020140052394A
公开(公告)日：2014-05-07
申请号：KR1020120118460
申请日：2012-10-24
Applicant: 삼성전기주식회사
Abstract: The present invention relates to a multilayer capacitor. To reduce stress due to laminate accumulation, the multilayer capacitor is composed of a ceramic body which is formed by alternatively laminating a ceramic sheet printed with a first internal electrode and a ceramic sheet printed with a second internal electrode and a pair of external terminals which are formed on both sides of the ceramic body. An interval (W1) between the upper line of the ceramic sheet and the upper line of the first internal electrode is different from an interval (W2) between the upper line of the ceramic sheet and the upper line of the second internal electrode. An interval (W3) between the lower line of the ceramic sheet and the lower line of the first internal electrode is different from an interval (W4) between the lower line of the ceramic sheet and the lower line of the second internal electrode.
Abstract translation: 本发明涉及一种层叠电容器。 为了减少由于层叠体积累的应力，层叠电容器由陶瓷体构成，该陶瓷体通过交替层叠印刷有第一内部电极的陶瓷片和印刷有第二内部电极的陶瓷片和一对外部端子 形成在陶瓷体两侧。 陶瓷片的上线与第一内部电极的上线之间的间隔（W1）与陶瓷片的上线和第二内部电极的上线之间的间隔（W2）不同。 陶瓷片的下线与第一内部电极的下线之间的间隔（W3）与陶瓷片的下线与第二内部电极的下线之间的间隔（W4）不同。
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公开(公告)号：KR1020110082837A
公开(公告)日：2011-07-20
申请号：KR1020100002745
申请日：2010-01-12
Applicant: 삼성전기주식회사
CPC classification number: C09K11/7774 , C09K11/0883 , H01L33/502 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2224/49107 , H01L2224/73265 , H01L2224/8592 , H01L2924/181 , Y02B20/181 , C09K11/7492 , H01L2924/00014 , H01L2924/00012
Abstract: PURPOSE: A nitride phosphor is provided to ensure excellent color rendering property and to prevent re-absorption when applied to a white light emitting diode. CONSTITUTION: A nitride phosphor is represented by chemical formula 1: M^1_(a-z)Ce_zM^2_(b-x)M^3_xN_(c-y)O_y. In chemical formula 1, M^1 is at least one kind of metal selected from Sc^3+, Y^3+, Lu^3+, La^3+, Pr^3+, Sm^3+, Gd^3+, Tb^3+, Yb^3+, Dy^3+, Eu^3+ and Bi^3+; M^2 is at least one kind of metal selected from Si^4+ and Ge^4+; M^3 is at least one kind of metal selected from Al^3+, B^3+ and Ga^3+; and 1.8
Abstract translation: 目的：提供氮化物荧光体以确保优异的显色性能，并且当应用于白色发光二极管时防止再吸收。 构成：氮化物荧光体由化学式1表示：M ^ 1_（a-z）Ce_zM ^ 2_（b-x）M ^ 3_xN_（c-y）O_y。 在化学式1中，M 1是选自Sc 3+，Y 3+，Lu 3+，La 3+，Pr 3+，Sm 3+，Gd 3+中的至少一种金属 +，Tb ^ 3 +，Yb ^ 3 +，Dy ^ 3 +，Eu ^ 3 +和Bi ^ 3 +; M ^ 2是选自Si 4+和Ge 4+中的至少一种金属; M ^ 3是选自Al 3+，B 3+和Ga 3+中的至少一种金属; 和1.8 <= a <= 2.2,3.8 <= b <= 4.2,6.7 <= c <= 7.3,0.7 <= x <3,0 <= y <3和0
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