횡형 스크롤 압축기의 가스 맥동에 관한 연구

최진섭,김현진,Choi, Jin Sub,Kim, Hyun Jin 한국유체기계학회 2000 한국유체기계학회 논문집 Vol.3 No.1

Analytical and experimental investigations have been carried out on the gas pulsations in the discharge paths of a high-side horizontal scroll compressor, where the gas discharged from compression chamber is made to pass through several chambers inside the compressor shell. Model of Helmholtz resonators in series has been applied to this configuration to predict gas pulsation phenomena along the passages, and the calculation results have been compared with measured pressure time traces. Good agreements between the analytical and experimental results have been obtained. It has also been found that the compressor performance is somewhat affected by the size of individual chambers inside the compressor shell.

Fe₄[Fe(CN)₆]₃가 코팅된 Mica 또는 TiO₂/Mica 적외선 반사용 청색안료 제조 및 이 도료의 차열 특성 평가

정하영,김대성,이현진,이승호,임형미,최병기,강광중,최진섭,Jung, Ha-Young,Kim, Dae Sung,Lee, Hyun-Jin,Lee, Seung-Ho,Lim, Hyung Mi,Choi, Byung-Ki,Kang, Kwang-Jung,Choi, Jin-Sub 한국재료학회 2013 한국재료학회지 Vol.23 No.12

$Fe_4[Fe(CN)_6]_3$ coated on a mica or $TiO_2$/mica surface as infrared reflective blue pigment was prepared by a hydrothermal method. $Fe_4[Fe(CN)_6]_3$, used as coloring agent, was uniformly coated on mica or $TiO_2$/mica under the optimized condition of a 1.2 : 1 weight ratio between iron(III) chloride hexahydrate and potassium ferrocyanidetrihydrate at the initial pH level of 4.5 at $70^{\circ}C$. The infrared (IR)-reflective pigments were characterized by SEM, Zeta-potenial, FT-IR, and UV-VIS NIR spectrophotometry. Especially the CIE color coordinate and total solar reflectance(TSR) properties of the pigments were investigated in relation to variation of the coating and coated substrate thicknesses. Isolation-heat paint was prepared with 20 wt% blue pigments fully dispersed in acryl-urethane resin and several additives to coat the film uniformly. The films were also measured with CIE color coordinate, TSR, and the surface temperature was recorded by an isolation-heat measuring system. The pigments and films of $Fe_4[Fe(CN)_6]_3$ coated on mica and $TiO_2$/mica showed high TSR values compared with the TSR value of $Fe_4[Fe(CN)_6]_3$ itself. According to the increase of TSR value, the property of isolation-heat is effective. To realize the optimal blue color, we applied the the pigment to $TiO_2$ coated mica(TM(b)) which has blueish interference color. The pigment of $Fe_4[Fe(CN)_6]_3$ coated on TM(b) shows a strong blue color compared with that of $Fe_4[Fe(CN)_6]_3$ coated on $TiO_2$/Mmca(TM(w)), which has a whitish interference color.

가정폭력과 친권 -이혼 후 친권자 지정과 관련하여 미국의 입법례를 중심으로-

최진섭 ( Jin Sub Choi ) 법조협회 2007 法曹 Vol.56 No.9

가정폭력으로 부모가 이혼하는 경우에 그 가정의 자녀가 안전하게 성장할 수 있도록 법제도적 차원에서 지원이 필요하다. 특히 가정폭력을 행사한 전력이 있는 부모의 일방을 친권자 내지 양육자로 지정하거나 면접교섭을 허용하는 것은 자녀의 복리에 비추어 볼 때 큰 문제가 아닐 수 없다. 이러한 문제에 대하여 우리 법학계의 논의는 거의 이루지지 않았다. 미국의 경험을 통해 살펴 본 바와 같이 미국법에서는 이 문제에 대하여 상당히 진전된 입법적 조치가 취해지고 있음을 알 수 있다. 우리 법은 자녀의 복리라는 일반 원칙에 의하여 이러한 문제를 다루고 있으므로 가정폭력의 문제도 여기에 포함시켜 해석될 수 있으나, 가정폭력의 동적 구조에 대한 이해부족과 가정폭력이 자녀에게 미치는 악영향에 대한 인식부족으로 인하여 실무적으로 가정폭력이 이러한 문제와 관련하여 고려되는 사례는 거의 찾아볼 수 없고, 또 자녀의 복리에 대한 해석은 판사의 재량에 맡겨져 있다. 이러한 문제에 대한 해결방안으로서는 무엇보다도 자녀의 건강과 안전이 친권, 양육, 면접교섭과 관련된 재판에서 다른 고려사항보다 최우선적으로 고려되도록 입법적 조치를 취하는 것이다. 그리고 가정폭력을 행사한 사람에게 친권, 양육권, 면접교섭권을 부여하는 것은 자녀의 복리에 반한다는 법적 추정(반증을 들어 번복할 수 있는 여지는 남겨둠)을 민법에 도입하는 방안이 있다. 가해자가 가정폭력 피해자와 자녀의 안전이 보장될 수 있음을 입증하지 못하는 한, 가정폭력 가해자에게 친권, 양육권, 또는 면접교섭권이 원칙적으로 허용되어서는 아니 된다. 가해자에게 이러한 권리가 인정되기 위해서는 피해자와 그 자녀의 안전이 보장될 수 있다는 서면의 판결이유를 제시하도록 강제하는 입법이 필요하다.

형제자매관계의 민법상 의의

최진섭(Jin-Sub Choi) 한국가족법학회 2008 가족법연구 Vol.22 No.3

According to psychologists, sibling relationships are “attachment relationships.” Attachment research may help educate judges and legislators who do not realize the significance of sibling relationships. The term “attachment” can be defined as “an enduring affectional bond of substantial intensity.” The primary purpose of attachment is “providing safety and protection for the young, the old, and others who are less capable of meeting their own needs.” Research on attachment originally focused primarily on the parent-child bond, but newer studies have led to an understanding of the importance of alternative relationships to a person’s development, including sibling relationships. In fact, one commentator has suggested that the sibling relationship may be as important as the parent-child relationship. Siblings serve several important functions, including developmental opportunities to learn about cooperation and individuality, and ultimately providing a natural support network for each other. In “disorganized families,” the role that siblings play for each other is crucial. Extrinsic factors have a complex effect on the sibling relationship. When parents separate or divorce, for example, “the number of parenting figures may change while many children receive significantly less parenting. Through this process, nonparental relationships, including sibling relationships, become more important.” Thus, the sibling bonds that are already so important often become even more significant among children who have experienced stressful home situations. Sibling separation under these circumstances is often much more traumatizing than would be the case for other types of family situations. It has been suggested that terminating the sibling relationship should be given the same consideration that is given to the termination of a parent-child relationship. It is clear that the sibling relationship offers many benefits. These benefits, however, are meaningless unless siblings are allowed to establish and maintain their relationship. Legislators have to recognize the emotional, as well as the financial, importance of recognizing sibling bonds. For instance, legislators must consider sibling visitation after separation.

이혼 후의 공동양육법제에 대한 입법론적 연구

최진섭(Choi, Jin Sub) 한국가족법학회 2010 가족법연구 Vol.24 No.3

During marriage, mutual trust, altruism, and proximity help to prevent opportunistic behavior by the parents, but after a marriage ends, these controls are less effective. The question of how best to foster cooperative behavior between divorced parents is a perennial one. Perhaps the real value of joint custody lies in encouraging bonding between parents and children after divorce. What formerly married parents may need is encouragement toward keeping their control issues under better control. A solution is to make the expected custody award independent of the parties' bargains and statements to the court. If, for example, joint custody is mandatory, then it will do the father no good to threaten that he will push for sole custody. Nothing will depend on his stated preferences. Similarly, if the parents cannot bargain away from joint custody before they go to court, then there will be no incentive to threaten custody in order to extract property. The point is that mandatory rules reduce strategic behavior and attendant costs. From the perspective of monitoring and bonding, a useful way to think of the preference for joint custody is that it assumes that two partly involved parents will invest more and better than one entirely responsible parent. Joint custody might also result in better child rearing. If parents expect that divorce is possible, and that sole custody will be awarded to the parent to whom the child is closest, they have an incentive to cut out the other parent in a struggle for the child’s affections. Thus the move to joint custody might reduce parental possessiveness and self-centeredness in child rearing. Joint custody also formalizes a more normal bond between ex-spouses. The rancor of a divorce may be less bitterly felt and remembered when one knows that a common tie will remain and cannot be ignored. The joint deliberation over the child’s future might also reduce the level of acrimony. This also will ease the pain of divorce for children. A joint-custody regime might help children especially in two ways. Under bonding theories, a spouse who would expect to lose custody under a sole-custody regime has greater incentives to bond with his family under joint custody. With greater family bonding, the likelihoodof a divorce declines. This would greatly benefit children, for whom a divorce is devastating. Under monitoring theories, joint custody usefully monitors the agency costs of misbehavior by a spouse who has been granted sole custody. The noncustodial spouse has thus a greater incentive to support his child on a move to joint custody.

미국 혼인법의 개별화 경향 - 혼인전합의법 및 협약혼인법을 중심으로 -

최진섭(Jin-Sub Choi) 한국가족법학회 2005 가족법연구 Vol.19 No.1

As a result of the change in background rules, the consequences of judicial reluctance to allow antenuptial contracting have reversed over the past thirty years. State policy requiring all marriages to conform to a single set of legal rules was outdated because of the heterogeneity of desirable marriages. The traditional marriage seemed to assume that all couples were young, white, middle-class adults, never married before, who desired a permanent marriage with traditional sex roles and with procreation as a major purpose. Now the laws have changed, but they seem equally rigid, and desire a permanent marriage and traditional sex roles. Therefore each couple should be given the option to have their marriage governed by traditional rules of marriage and divorce, as enacted in Louisiana and other states. Courts should enforce agreements as to the terms of divorce, at least regarding the division of property and should be authorized to also enforce private agreements regarding grounds for divorce and terms of an ongoing marriage. It is better to foster preferences for extending private control and diminishing governmental control in marital matters. In the past, religious and social norms defined a “marriage” and the gender roles within a marriage. The law did not allow contractual variations out of keeping with the religious and social norms. As a matter of public policy, it was thought that the interests of society required the fostering of a certain type of marriage, in the interests of child rearing and stability, and the desires of the individual needed to be subordinated to social order. Thus, social norms, religious rules, and legal doctrine prevented people from entering into a marriage agreement that might allow easy dissolution or unusual roles. Some of the reasons why it was once difficult to contract out of a traditional marriage are clear. But many of those restraints on individual liberty have weakened or disappeared. Prevailing opinion has changed. Although still limited, a marriage today is considered much more a matter for the two parties concerned, not for society. Yet few people entering their first marriage memorialize their shared understandings, obligations, and aspirations by contract. The rarity of individualized contracts is partially explained by inertia and partly by lack of awareness that being bound by marital contracts can be a good thing for both parties. But another reason is that no one can be sure that courts will enforce the contracts. The law has not kept pace with societal sensibilities. No-fault divorce might seem to foster individual choice, in keeping with the spirit of the age, but it does not really favor individual choice. Some people would like to be able to choose to bind themselves in a permanent marriage, yet the law makes it difficult to personalize the contract. One legal size is presumed to fit all. The chief problem comes in being unable to specify the grounds for divorce, either directly or through using the terms of divorce to penalize a spouse who is at fault. The long-established rule against judicial interference in ongoing marriages further hinders the establishment of individually tailored marriages. Statutes could usefully provide forms with several enforceable and reliable options.

수술 후 재발한 간세포암의 외과적 치료

최진섭 ( Jin Sub Choi ) 대한간암학회 2003 대한간암학회지 Vol.3 No.-

희귀 증례 육종양 간세포암

최진섭 ( Jin Sub Choi ),김경식 ( Kyung Sik Kim ),박영년 ( Young Nyun Park ),이우정 ( Woo Jung Lee ),전재윤 ( Jae Yoon Chon ),이종태 ( Jong Tae Lee ),김병로 ( Byong Ro Kim ) 대한간암학회 2002 대한간암학회지 Vol.2 No.-

인터넷 응용 트래픽의 분석 및 동향

최진섭(Jin-Sub Choi),이사야(Sa-Ya Lee),백현호(Hyun-ho Baek),정중수(Joong-soo Chung),윤승현(Seong-Hyun Yun),정태수(Tae-Soo Chung) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.2Ⅲ

오늘날 인터넷의 백본 발달과 더불어 수많은 응용 서비스들이 사용되고 있다. 이러한 응용 서비스는 인터넷 초기 출현 시에는 웹, 파일전달, 이메일 등의 well-known 서비스가 주축을 형성하였다. 그러나 최근 인터넷의 폭발적인 사용과 다양한 컨텐츠의 요구로 unwell-known 서비스가 매우 많은 등장하였다. 또한 인터넷에서 작동하는 트래픽을 모니터링하여 (un)well-known 포트를 사용하는 패킷의 PDU 정보를 보고서 응용 서비스의 유형을 찾는 기법은 트래픽 분석자에게 매우 유용한 정보이다. 본 논문에서는 TCP와 UDP 위에서 동작하는 (un)well-known 포트를 사용하는 패킷의 PDU 정보에 의한 응용 서비스의 유형을 찾는 트래픽 분석 기법을 수행하였다. 이러한 분석을 위하여 수많은 트래픽 중 활용도가 많은 응용 서비스를 추출하기 위하여, 안동대학교 네트워크에서는 ethereal에서 제시된 netflow 및 tepdump 기법을 활용하였다. 추출된 트래픽의 분석을 위하여 그 서비스를 PC에서 구동시켜 ethereal 트래픽 분석장치로 모니터링하여 분석하였다.

횡형 스크롤 압축기의 가스 맥동에 관한 연구

최진섭(Jin Sub Choi),김현진(Hyun Jin Kim) 한국유체기계학회 1999 유체기계 연구개발 발표회 논문집 Vol.- No.-

Analytical and experimental investigations have been carried out on the gas pulsations in the discharge paths of a high-side horizontal scroll compressor, where the gas discharged from compression chamber is made to pass through several chambers inside the compressor shell. Model of Helmholtz resonators in series has been applied to this configuration to predict gas pulsation phenomena along the passages, and the calculation results have been compared with measured pressure time traces. Good agreements between the analytical and experimental results have been obtained. It has also been found that the compressor performance is somewhat affected by the size of individual chambers inside the compressor shell.