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1.发明授权Method for preparing size-controlled gold nanoparticles and colorimetric detection method of strong acid using the same 有权制备大小控制金纳米颗粒的方法和使用其的强酸比色检测方法公开(公告)号：US09533354B2
公开(公告)日：2017-01-03
申请号：US14087159
申请日：2013-11-22
Applicant: Korea Basic Science Institute
Inventor： Gae Hang Lee , Doo Ri Bae , Yeon Suk Choi
CPC classification number: B22F9/24 , B22F1/0018 , Y10T428/2982 , Y10T436/15 , Y10T436/156666
Abstract: A method for preparing hydrophobic gold nanoparticles includes adding 1,2-dichlorobenzene as a solvent to gold precursor and using oleylamine and oleic acid with volume ratio of 7.5:2.5 to 5:5 as surfactants. The size of the prepared gold nanoparticles can be controlled over a broad range and may be utilized in various fields such as bio-imaging, photonic crystallization, sensors, organic catalysts, surface enhanced raman spectrum, electronic devices, etc. Further, a method for colorimetric detection of a strong acid uses hydrophilic nanoparticles that are phase transited from the prepared hydrophobic gold nanoparticles. Up to 5 ppm of low content hydrochloric acid can be detected utilizing phase transited hydrophilic nanoparticles in the colorimetric detection method, and the gold nanoparticles that were used in the detection of strong acid can be reused without loss of activity through neutralization with bases.
Abstract translation: 制备疏水性金纳米颗粒的方法包括将1,2-二氯苯作为溶剂加入到金前体中，并使用体积比为7.5:2.5至5:5的油胺和油酸作为表面活性剂。 所制备的金纳米颗粒的尺寸可以在宽范围内进行控制，并可用于各种领域，例如生物成像，光子晶体结构，传感器，有机催化剂，表面增强拉曼光谱，电子器件等。另外， 强酸的比色检测使用从制备的疏水性金纳米粒子相转移的亲水性纳米颗粒。 在比色检测方法中可以使用相转移的亲水性纳米颗粒检测高达5ppm的低含量盐酸，并且用于检测强酸的金纳米颗粒可以通过用碱中和而不损失活性而重复使用。
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公开(公告)号：US09324538B2
公开(公告)日：2016-04-26
申请号：US14107083
申请日：2013-12-16
Applicant: KOREA BASIC SCIENCE INSTITUTE
Inventor： Yeon Suk Choi , Myung Su Kim , Min-Gab Bog , Jong-Su Jeon , Jong-Gu Kim
CPC classification number: H01J37/20 , F16H37/14 , G02B7/004 , G02B7/005 , G02B21/26 , H01J2237/20214 , H01J2237/20221 , Y10T74/20213
Abstract: A coaxial drive apparatus for multidirectional control, including: a housing; a stage pivotally installed in the housing, with the object laid on the stage; a rotary shaft connected to the stage and rotated to cause the stage to pivot; a rotation transmitting unit transmitting a rotating force of the rotary shaft to the stage; a sliding pipe coaxially fitted over the rotary shaft so as to be moved along a lengthwise direction of the rotary shaft or to be rotated on a central axis of the rotary shaft; a moving unit moving the object laid on the stage in the lengthwise direction of the rotary shaft according to a movement of the sliding pipe, and moving the object in a transverse direction of the rotary shaft according to a rotation of the sliding pipe; and a controller providing a driving force to the rotary shaft and to the sliding pipe.
Abstract translation: 一种用于多向控制的同轴驱动装置，包括：壳体; 枢轴安装在壳体中的台架，物体放置在舞台上; 旋转轴，连接到舞台并旋转以使舞台枢轴转动; 旋转传递单元，其将所述旋转轴的旋转力传递到所述平台; 滑动管同轴地装配在所述旋转轴上，以沿着所述旋转轴的长度方向移动或者在所述旋转轴的中心轴线上旋转; 移动单元根据滑动管的运动沿着旋转轴的长度方向移动放置在台架上的物体，并且根据滑动管的旋转沿着旋转轴的横向方向移动物体; 以及向旋转轴和滑动管提供驱动力的控制器。
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公开(公告)号：US20150143940A1
公开(公告)日：2015-05-28
申请号：US14107083
申请日：2013-12-16
Applicant: Yoonseul Co., Ltd. , Korea Basic Science Institute
Inventor： Yeon Suk Choi , Myung Su Kim , Min-Gab Bog , Jong-Su Jeon , Jong-Gu Kim
IPC: F16H37/04
CPC classification number: H01J37/20 , F16H37/14 , G02B7/004 , G02B7/005 , G02B21/26 , H01J2237/20214 , H01J2237/20221 , Y10T74/20213
Abstract: A coaxial drive apparatus for multidirectional control, including: a housing; a stage pivotally installed in the housing, with the object laid on the stage; a rotary shaft connected to the stage and rotated to cause the stage to pivot; a rotation transmitting unit transmitting a rotating force of the rotary shaft to the stage; a sliding pipe coaxially fitted over the rotary shaft so as to be moved along a lengthwise direction of the rotary shaft or to be rotated on a central axis of the rotary shaft; a moving unit moving the object laid on the stage in the lengthwise direction of the rotary shaft according to a movement of the sliding pipe, and moving the object in a transverse direction of the rotary shaft according to a rotation of the sliding pipe; and a controller providing a driving force to the rotary shaft and to the sliding pipe.
Abstract translation: 一种用于多向控制的同轴驱动装置，包括：壳体; 枢轴安装在壳体中的台架，物体放置在舞台上; 旋转轴，连接到舞台并旋转以使舞台枢轴转动; 旋转传递单元，其将所述旋转轴的旋转力传递到所述平台; 滑动管同轴地装配在所述旋转轴上，以沿着所述旋转轴的长度方向移动或者在所述旋转轴的中心轴线上旋转; 移动单元根据滑动管的运动沿着旋转轴的长度方向移动放置在台架上的物体，并且根据滑动管的旋转沿着旋转轴的横向方向移动物体; 以及向旋转轴和滑动管提供驱动力的控制器。
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公开(公告)号：US10983080B2
公开(公告)日：2021-04-20
申请号：US16161999
申请日：2018-10-16
Applicant: KOREA BASIC SCIENCE INSTITUTE
Inventor： Yeon Suk Choi , Soo Yeol Jeong
IPC: G01N1/42 , B26F1/40 , B26F1/44 , G01N25/48 , B01L3/00 , B26D1/00 , G01N1/28 , B01L3/02 , G01N25/18 , G01K17/00
Abstract: Disclosed is an apparatus for quantitively supplying a high-viscosity fluid sample, the apparatus including a cylinder body in which a high-viscosity fluid is to be stored, a cylinder head detachably attached to the cylinder body, a piston configured to slide in a longitudinal direction of the cylinder body, and a cutter disposed below the cylinder head and configured to cut a high-viscosity fluid discharged from the cylinder head.
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公开(公告)号：US09672303B2
公开(公告)日：2017-06-06
申请号：US13869868
申请日：2013-04-24
Applicant: KOREA BASIC SCIENCE INSTITUTE
Inventor： Yeon Suk Choi , Dong Lak Kim
CPC classification number: G06F17/5009 , G01K7/425 , G06F1/20 , G06F1/206
Abstract: The present invention provides a system and method of predicting the initial cooling of a superconducting magnet, which can predict the change in initial cooling temperature of a superconducting magnet when the superconducting magnet is cooled using an ultra-low refrigerator. In the system and method, the change in cooling temperature of a superconducting magnet can be accurately predicted by classifying influence factors related to the cooling of a superconducting magnet into a plurality of control volumes and inducing a governing equation with respect to each of the control volumes. Based on this system and method, the reliability of basic data required to design an apparatus for measuring a high magnetic field for forming an ultralow-temperature environment can be greatly improved.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20140180625A1
公开(公告)日：2014-06-26
申请号：US13869868
申请日：2013-04-24
Applicant: KOREA BASIC SCIENCE INSTITUTE
Inventor： Yeon Suk Choi , Dong Lak Kim
IPC: G06F17/50
CPC classification number: G06F17/5009 , G01K7/425 , G06F1/20 , G06F1/206
Abstract: The present invention provides a system and method of predicting the initial cooling of a superconducting magnet, which can predict the change in initial cooling temperature of a superconducting magnet when the superconducting magnet is cooled using an ultra-low refrigerator. In the system and method, the change in cooling temperature of a superconducting magnet can be accurately predicted by classifying influence factors related to the cooling of a superconducting magnet into a plurality of control volumes and inducing a governing equation with respect to each of the control volumes. Based on this system and method, the reliability of basic data required to design an apparatus for measuring a high magnetic field for forming an ultralow-temperature environment can be greatly improved.
Abstract translation: 本发明提供一种预测超导磁体的初始冷却的系统和方法，该超导磁体可以预测超导磁体使用超低温冷藏器冷却时超导磁体的初始冷却温度的变化。 在该系统和方法中，可以通过将与超导磁体的冷却相关的影响因素分类为多个控制体积并且针对每个控制体积引导控制方程，可以准确地预测超导磁体的冷却温度的变化 。 基于该系统和方法，可以大大提高设计用于测量用于形成超低温环境的高磁场的装置所需的基本数据的可靠性。
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公开(公告)号：US11965693B2
公开(公告)日：2024-04-23
申请号：US17126036
申请日：2020-12-18
Applicant: KOREA BASIC SCIENCE INSTITUTE
Inventor： Yeon Suk Choi , Myung Su Kim
CPC classification number: F25J1/0007 , F17C13/007 , F25B9/10 , F25J1/0237 , F25J1/0279 , H01F6/04 , F25B2400/17 , F25J2215/30 , F25J2270/30 , F25J2290/30
Abstract: Disclosed are a helium gas liquefier and a method for liquefying a helium gas. The disclosed helium gas liquefier includes: a first cooling part including a first cooling column; a first cold head installed on the first cooling column, and a first cylinder in which the first cooling column and the first cold head are built; a second cooling part including a second cooling column, a second cold head installed on the second cooling column, and a second cylinder in which the second cooling column and the second cold head are built; and a liquid helium storage disposed under the second cooling part.
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公开(公告)号：US09707624B2
公开(公告)日：2017-07-18
申请号：US14563494
申请日：2014-12-08
Applicant: Korea Basic Science Institute
Inventor： Gaehang Lee , Yeon Suk Choi
CPC classification number: B22F9/24 , B22F1/0018 , B22F2301/255 , C22B11/04 , C22C5/06
Abstract: Provided is a method of synthesizing silver nanoparticles including: a) a nucleation step of reacting a composition containing a silver precursor, a heterogeneous metal precursor, and an amine-based compound at 30 to 120° C. to form a nucleus; and b) a growth step of reacting the composition containing the nucleus formed therein at 155 to 350° C. to grow the nucleus. According to the present invention, significantly uniform and fine silver nanoparticles may be synthesized with high reproducibility on a large scale.
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9.发明授权Autonomous induction heat exchange method using pressure difference and gas compressor and heat pump using the same 有权自主感应换热方法采用压差和气体压缩机和热泵使用相同公开(公告)号：US09476615B2
公开(公告)日：2016-10-25
申请号：US14398180
申请日：2013-05-30
Applicant: KOREA BASIC SCIENCE INSTITUTE
Inventor： Seung Young Park , Yeon Suk Choi
CPC classification number: F25B13/00 , F25B23/006 , F25B41/06 , F28D15/00
Abstract: Disclosed herein is an autonomous induction heat exchange method using a pressure difference caused by heat exchange in a single pipeline. In addition, the present invention relates to a gas compressor and a heat pump using the method. The present invention does not require a separate drive device. Therefore, occurrence of vibration or noise can be fundamentally prevented. Consumption of power for compressing gas or heat exchange can be minimized. Furthermore, gas circulates in an autonomous induction manner using a pressure difference. Thus, the length, size and structural shape of a gas compressor or a heat pump can be modified in a variety of ways. Thereby, the present invention can be easily used in different kinds of apparatus and systems and can be easily applied to small heat exchange modules using micro-channels as well as large heat exchange systems.
Abstract translation: 这里公开了使用在单个管道中由热交换引起的压力差的自主感应热交换方法。 此外，本发明涉及一种使用该方法的气体压缩机和热泵。 本发明不需要单独的驱动装置。 因此，可以从根本上防止振动或噪音的发生。 消耗用于压缩气体或热交换的功率可以最小化。 此外，气体以自动感应方式使用压力差循环。 因此，可以以各种方式修改气体压缩机或热泵的长度，尺寸和结构形状。 因此，本发明可以容易地用于不同种类的装置和系统中，并且可以容易地应用于使用微通道的小型热交换模块以及大的热交换系统。
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公开(公告)号：US20210199377A1
公开(公告)日：2021-07-01
申请号：US17126036
申请日：2020-12-18
Applicant: KOREA BASIC SCIENCE INSTITUTE
Inventor： Yeon Suk Choi , Myung Su Kim
Abstract: Disclosed are a helium gas liquefier and a method for liquefying a helium gas. The disclosed helium gas liquefier includes: a first cooling part including a first cooling column; a first cold head installed on the first cooling column, and a first cylinder in which the first cooling column and the first cold head are built; a second cooling part including a second cooling column, a second cold head installed on the second cooling column, and a second cylinder in which the second cooling column and the second cold head are built; and a liquid helium storage disposed under the second cooling part.
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