수열합성중 계면활성제를 이용한 ZnO 나노구조 형상 제어

박일규,Park, Il-Kyu 한국분말야금학회 2016 한국분말재료학회지 (KPMI) Vol.23 No.4

We report on an all-solution-processed hydrothermal method to control the morphology of ZnO nanostructures on Si substrates from three-dimensional hemispherical structures to two-dimensional thin film layers, by controlling the seed layer and the molar contents of surfactants during their primary growth. The size and the density of the seed layer, which is composed of ZnO nanodots, change with variation in the solute concentration. The ZnO nanodots act as heterogeneous nucleation sites for the main ZnO nanostructures. When the seed layer concentration is increased, the ZnO nanostructures change from a hemispherical shape to a thin film structure, formed by densely packed ZnO hemispheres. In addition, the morphology of the ZnO layer is systematically controlled by using trisodium citrate, which acts as a surfactant to enhance the lateral growth of ZnO crystals rather than a preferential one-dimensional growth along the c-direction. X-ray diffraction and energy dispersive X-ray spectroscopy results reveal that the ZnO structure is wurtzite and did not incorporate any impurities from the surfactants used in this study.

Polytetrafluoroethylene 분말 현탁액을 통한 다공성 박막 제조 및 에너지 발생소자 응용

박일규,Park, Il-Kyu 한국분말야금학회 2017 한국분말재료학회지 (KPMI) Vol.24 No.2

Porous polytetrafluoroethylene (PTFE) thin films are fabricated by spin-coating using a dispersion solution containing PTFE powders, and their crystalline properties are investigated after thermal annealing at various temperatures ranging from 300 to $500^{\circ}C$. Before thermal annealing, the film is densely packed and consists of many granular particles 200-300 nm in diameter. However, after thermal annealing, the film contains many voids and fibrous grains on the surface. In addition, the film thickness decreases after thermal annealing owing to evaporation of the surfactant, binder, and solvent composing the PTFE dispersion solution. The film thickness is systematically controlled from 2 to $6.5{\mu}m$ by decreasing the spin speed from 1,500 to 500 rpm. A triboelectric nanogenerator is fabricated by spin-coating PTFE thin films onto polished Cu foils, where they act as an active layer to convert mechanical energy to electrical energy. A triboelectric nanogenerator consisting of a PTFE layer and Al metal foil pair shows typical output characteristics, exhibiting positive and negative peaks during applied strain and relief cycles due to charging and discharging of electrical charge carriers. Further, the voltage and current outputs increase with increasing strain cycle owing to accumulation of electrical charge carriers during charge-discharge.

MLCC 에서 발생하는 소음 저감을 위한 설계변수 선정

고병한(Byung-Han Ko),김재근(Jaeguen Kim),박노철(No-Cheol Park),박영필(Young-Pil Park),박경수(Kyung-Su Park),안영규(Younggyu Ahn),박상수(Sangsu Park),박일규(Illgyu Park) 한국소음진동공학회 2012 한국소음진동공학회 학술대회논문집 Vol.2012 No.4

Li-ion 배터리의 SEI층에 의한 열화 매커니즘 분석

박일규(Ilkyu Park),김대식(Daesik Kim),차한주(Hanju Cha) 대한전기학회 2012 대한전기학회 학술대회 논문집 Vol.2012 No.11

원심분리법을 이용한 다공 크기 구배를 가지는 알지네이트 지지체의 제조 및 분석

박일규 ( Il Kyu Park ),오세행 ( Se Heang Oh ),이진호 ( Jin Ho Lee ) 한국조직공학과 재생의학회 2004 조직공학과 재생의학 Vol.1 No.2

It is well recognized that the pore size of scaffolds plays an important role for tissue ingrowth and regeneration: different kinds of cells were shown to have different optimal pore size ranges in the scaffolds for effective cell growth. So, if the tissue scaffold with pore size gradient (i. e., the scaffold with gradually increasing pore sizes along one direction) can be prepared, it will be of particular interest for basic studies of the interaction between tissue cells and scaffolds since the effect of pore size can be examined in a single experiment using one scaffold (pore size gradient scaffold). In recent years, several techniques have been used to fabricate porous polymer scaffolds having 3-dimensional pore structure. However, it is not possible to fabricate scaffolds with pore size gradient from those techniques. In this study, we developed a new method to fabricate pore size gradient scaffolds by a simple centrifugation. We fabricated alginate cylindrical scaffolds with gradually increasing pore size (80~310 μm) along the longitudinal direction by the centrifugation method. In this method, the pore size ranges of the scaffold could be easily controlled by adjusting centrifugal force. The prepared alginate scaffolds were impregnated into 1 wt% chitosan solution to improve cell adhesiveness as well as mechanical strengths. This study demonstrate that the centrifugation method is a simple and effective method to prepare tissue scaffolds with controllable pore size ranges.

제정 10주년의 개인정보보호법에 대한 형사법적 검토

朴逸奎 ( Ilkyu Park ) 법조협회 2021 法曹 Vol.70 No.4

시행 10주년의 개인정보보호법에 대한 형사 판례, 검찰 결정례를 중심으로 주요 쟁점을 검토하였다. 개인정보의 핵심 표지인 식별가능성의 판단에 있어 ‘다른 정보와 쉽게 결합하여’(용이결합성) 요건의 해석이 문제된다. 대법원 판례는 없지만, 하급심 판결은 객관적 기준과 개인정보처리자 주관적 기준으로 나뉘다가 최근 후자의 입장인 것으로 보인다. 다른 정보의 입수 가능성 등을 고려하도록 한 2020년 개정법의 규정 문언, 개인정보처리자의 신분범 구조 등에 비추어 개인정보처리자 기준의 해석이 보다 적절할 것이다. 2020년 개정법에 따라 가명처리된 개인정보는 가명정보로서 규제가 완화되고, 익명처리되면 규제가 적용되지 않는데, 비식별 조치의 적정성이 문제될 수 있고, 재식별 가능성이 잔존하는 사안에서 개인정보처리자의 개인정보 처리 고의를 부정한 하급심 판결이 있었다. 개인정보보호법은 개인정보의 처리 규제 위반에 대하여 직접 형벌을 부과하고 있는바, 수집·이용, 제공, 목적 외 이용·제공으로 구분된 조문 체계에 따라 벌칙 규정의 구성요건을 검토하였다. 개인정보 처리에서의 중요한 정책적 선택지는 정보주체의 개인정보자기결정권 행사 방법이고, 우리나라의 경우 사전 동의 구조가 채택되어 있다. 대법원은 적법한 동의 획득 요건, 공개 개인정보의 동의 면제에 관한 해석을 제시하고 있다. 한편, 대법원은 동의된 목적 부합 여부를 심사하여 개인정보 처리 행위의 적법성을 판단하고 있는데, 2020년 개정법에 따라 수집 목적과 합리적으로 관련된 범위에서 개인정보의 추가적 처리가 허용된다. 개인정보보호법은 개인정보 보호조치 위반에 대한 처벌 규정도 두고 있다. 판례는 준수되어야 하는 기술적 조치의 기준을 제시하고, 개인정보처리자에게 보호조치 불이행에 대한 고의와 개인정보 유출에 대한 과실, 인과관계가 필요하다고 보고 있다. 지난 10년간의 판례에 대한 분석을 토대로 개인정보의 활용과 보호의 균형을 추구하면서 다양한 이해관계의 수범자에게 명확한 지침을 제공하는 규제 필요성을 강조하였다. This article intends to review major criminal law issues of the Personal Information Protection Act(‘the Act’) in the 10 years since its enactment. The definition of ‘personal information’ relies on the concept of identifiability. The interpretation of the phrase “identifiable by easily combining with other data” is the key issue in deciding the identifiability of a person. Although there has been no Supreme Court decision on this point, lower courts seem to apply the relative approach, which considers combining other data should be easy for the data controller. In my opinion, this position is in line with the amended article of the Act which states “taking into account possibilities of obtaining other data” and the elements of criminal offences requiring status of data controller. The amended Act of 2020 provides the legal basis for processing of ‘pseudonymised data’ and clarifies that ‘anonymised data’ is not subject to the Act. There was a lower court decision which denied the data controller’s intention of processing identifiable personal information where risk of re-identification had remained. The Act stipulates the lawful grounds for processing personal information by specifying collection/use, provision to third parties and out-of-purpose use/provision separately, and criminalises the breach of such rules. The most important policy choice is how to ensure the right to informational self-determination of the data subject; the Act has adopted an opt-in regime. The Supreme Court has issued rulings on conditions for obtaining lawful consent and exemption for consent requirements in case of disclosed personal information. Also, the Supreme Court decides the legality of processing activities by reviewing whether they are in accordance with the original purpose for which the consent was given. Under the amended Act of 2020, further processing of personal information may be permitted without the data subject’s consent, if such processing is within the scope which is reasonably related to the original purpose of collection. The Act also makes it a criminal offence for data controllers to violate data security measures. The court indicates the technical standards to be met, and requires both intention of such violation and negligence in the leakage of personal information. Through this legal analysis of criminal cases accumulated during 10 years after the enforcement of the Act, I have emphasised that it is necessary to establish well-defined regulations by balancing interests between protection and utilisation of personal information.

한국노사관계(韓國勞使關係)의 안정화(安定化) 방안(方案)에 관한 연구(硏究)

박일규 ( Park Ill Kyu ) 경남대학교 산업경영연구소 1983 지역산업연구 Vol.6 No.1

The purpose of this study is to anayze and suggest the devices stabilizing industrial relation in Korea. In conclusion, first, the sense of value between the labor and management is to be changed, second, the countermeasures to increase the income level should be worked out- third, the policy to protect the laborer from industrial accident and pollution should be enforced. The contents of the thesis are as follows : Chapter I. Introduction. Chaprer Ⅱ. The Stabilization of the Industrial Relations. Chapter Ⅲ. The Analysis of the Industrial Relations in Korea. Chapter Ⅴ. Stabilizing Devices of the Industrial Relations in Korea. Chapter Ⅵ. Conclusion.

CFD-ACE+를 이용한 버펫팅소음 해석

박일규(Park, illkyoo) 한국소음진동공학회 2012 한국소음진동공학회 학술대회논문집 Vol.2012 No.10

반추동물에서 과립구의 기능에 대한 연구: 1. 소의 순환혈액에서 다형핵백혈구의 신속한 분리

박일규 ( Il Kyu Park ),윤창용 ( Chang Yong Yoon ),이정원 ( Jeoung Won Lee ),송희종 ( Hee Jong Song ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.22 No.4

Polymorphonuclear (PMN) leucocytes are fundamental importance to the body`s defense mechanism and play a major role in the local and systemic reactions to infectious disease. Investigation of the physiological and pathological role of the various leucocyte subtypes in host defence mechanisms is dependent upon the isolation of adequate numbers of viable, pure leucocyte fractions. This report describes the separate frequency of PMN leucocytes both from buffy coat layer and from packed RBC layer when bovine peripheral blood was treated with various anticoagulants such as acid-citrate-dextrose(ACD), ethyldiaminetetraacetic acid (EDTA), sodium citrate and heparin. The separate frequencies of PMN leucocytes from buffy coat layer was 60.4±9.6%(heparin), 56.8±11.8%(sodium citrate), 30.6±14.1%(ACD) and 6.2±3.7%(EDTA), in order. Those from packed RBC layer monitored with EDTA, ACD, sodium citrate and heparin was 85.0±4.7%, 84.3±5.5%, 83.8±6.5% and 76.3±7.7%, respectively. The Ficoll-hypaque(FH) density gradient method was used to remove a small part of lymphocytes and/or monocytes from leucocytes in packed RBC layer. With the result that it increased separate frequency of PMN leucocytes from EDTA(89.9±2.4%), ACD(89.5±3.6%), and sodium citrate(83.6±10.3%) than heparin(68.4±13.9%). These results indicate that the use of EDTA and ACD as anticoagulant is suitable for the separation of PMN leucocytes from bovine peripheral blood, and that the FH density gradient method is able to increase the separate frequency of PMN leucocytes from packed RBC layer.

EV 자동차의 FTP-75 운전 검증을 위한 양방향 DC-DC 충전기 설계 및 구현

박일규(Ilkyu Park),김대식(Daesik Kim),차한주(Hanju Cha) 전력전자학회 2013 전력전자학술대회 논문집 Vol.2013 No.7