건식 듀얼 클러치 변속기 기반 2단계 발진 슬립제어와 차량 테스트

김병진(Byeong-Jin Kim),이희락(Hee-Rak Lee),조주용(Joo-Yong Jo),이응수(Eung-Soo Lee),강지우(Ji-Woo Kang) 대한전자공학회 2015 대한전자공학회 학술대회 Vol.2015 No.6

Dual Clutch Transmissions (DCT) are becoming more and more used as an improving add-on solution on manual and automated manual transmission systems. The key issues in dry clutch control is launch and shift control. Dry clutch control is so difficult due to variation of clutch transfer torque characteristic as varying factors. This paper is proposed launch control using Two-stage slip control and implemented to real vehicle with installed DCT.

GREEN TOMORROW

김병진 ( Kim Byeong-jin ) 한국농공학회 2012 韓國農工學會誌 : 전원과 자원 Vol.54 No.1

산지형 공원녹지에 대한 이용실태 조사 : 대구광역시 앞산공원을 중심으로

김수봉(Soo Bong Kim),김무호(Moo Ho Kim),김병진(Byeong Jin Kim) 계명대학교 낙동강환경원 2011 環境科學論集 Vol.15 No.1

As cities increase in density, more land is used for residential areas and existing green space is lost. The result is increased investment in establishing parks. As the concept of "well-being" has increased in popularity, more and more time and money have been invested in creating open spaces and the number of people enjoying those spaces, including hikers, has in turn increased. More hikers have led to damage from excessive use to urban parks and trails including in places like Bukhansan National Park in Seou, and Palgongsan Provincial Park and Apsan Park in Daegu. Many Daegu citizens often visit to Palgongsan Provincial Park and Apsan Park. However, there not enough research has been done on user-behavior or satisfaction with forested parks and open spaces in these cities. Therefore, this research collected data related to user-behavior through a questionnaire targeting Apsan Park, a representative forested park in Daegu, and analyzed present conditions, user-behavior, and the relationship between satisfaction-achievement. Then, the survey was analyzed to know user-behavior or satisfaction for providing basic information on plan·design·management of urban forested parks. The results are as follows. People usually visit the forested parks with family, friends, or alone for exercise or relaxation. Most visitors come once or twice a week from 9 a.m. to 6 p.m. on weekends and spend two to four hours there each visit. The most-used facilities in the park were trails and sports facilities, reflecting survey results that said most visitors use the park for exercising and walking. and exercising. Therefore, program and facilities managers should take these numbers into consideration. Respondents wanted more trees, lawns and flowers. Also facilities should be kept in a good state of repair and rest areas should be expanded. According to the analysis of the importance-achievement, respondents expressed dissatisfaction to conditions related to restrooms, garbage disposal, and damage to natural resources and cultural amenities. Visitors also wished to see more development of walking areas. To raise user-satisfaction from forested parks, management of land, facilities, nature resources, and cultural amenities should be considered to prevent environmental damage. Facilities and rest areas should be expanded including more trees, lawns and flowers. With more information, improvements, more active participation in forested can be expected.

얇은 오일쉘 이중에멀젼을 이용한 고효율 단분산성 하이드로젤 마이크로 입자 생산

김병진 ( Byeong-jin Kim ),정혜선 ( Hye-seon Jeong ),최창형 ( Chang-hyung Choi ) 한국화학공학회 2022 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.60 No.1

본 연구는 미세유체기술을 기반으로 매우 간단하고 효율적인 단분산성 하이드로젤 마이크로 입자 제조 방법을 제안하였다. 구체적으로, 유리모세관 미세유체장치 내에서 형성된 이중에멀젼은 자외선기반 자유라디칼 중합에 의해 빠르게 고형화가 이루어진다. 수용액에 분산됨과 동시에 계면활성제의 부족으로 인해 얇은 오일쉘은 자발적으로 분리되어, 단분산성 하이드로젤 입자를 형성하였다(C.V.=1%). 본 연구의 결과는 water-in-oil (w/o) 단일에멀젼 기반의 제조 방법과 달리 오일 부피를 최소한으로 사용하여 크기 및 조성 제어가 가능한 단분산성 하이드로젤 입자의 제조가 달성될 수 있음을 보여준다. 마지막으로, 상도표를 기반으로 미세유체장치 내 유동 패턴에 대한 심층 연구는 상대적인 부피 유속들간의 중요한 상관관계를 나타내며 하이드로젤 마이크로 입자의 안정적인 제조를 위한 실험적 근거를 제시하였다. This study reports a microfluidic approach to produce monodisperse hydrogel microparticles in a simple and highly efficient manner. Specifically, we produce double emulsion drops with a thin oil shell surrounding an aqueous prepolymer solution, which is solidified via UV-induced free radical polymerization. When they are dispersed in an aqueous solution, the oil shell is dewetted due to the absence of surfactants, resulting in production of highly uniform hydrogel microparticles (C.V.=1%). Results show that production of monodisperse hydrogel microparticles with controllable size and composition can be achieved with minimal use of oil unlike water-in-oil (w/o) single emulsionbased approach. Furthermore, in-depth study of flow patterns in microfluidic device using a phase diagram exhibits a crucial relationship among relative flow rates while providing windows of readily controllable parameters for reliable manufacturing of hydrogel microparticles.

동유럽사건과 1950년대 일본사상계의 전환 -아베 고보 『동유럽을 가다』를 중심으로-

김병진 ( Byeong-jin Kim ) 한국일어일문학회 2016 日語日文學硏究 Vol.97 No.2

安部工房『東歐を行く』は1955∼58年のいわゆる「社會主義下における矛盾論爭」の最中で刊行された。矛盾こそ發展の原動力と見なしてきた唯物弁證法に從えば、社會主義社會ではいわゆる階級的矛盾が解消されたため、もはや發展どころか沈滯の道を道を천るしかなくなる。フルシチョフのスタ一リン批判とともに、この逆說的な構造をめぐる論爭こそ、スタ一リンによって公式化された「弁證法的唯物論」という世界觀に決定的な龜裂をもたらした。この問題について共産圈の內部からも矛盾對立が常在すると主張し、從來の弁證法的な敎條を守ろうとした保守派と、矛盾の志向や統一が發展の原動力と見なし「統一·團結·一致」を發展の原動力を唱える官學派との對立があった。安部工房の場合、社會主義社會の內部における資本主義的な矛盾に注目する保守派とも、矛盾そのものを發展の支障と見なす官學派とも異なる意見を東ヨ一ロッパでの體驗を元に披露する。安部は資本主義的な矛盾をマイナス的な矛盾だとし、大衆たちの創意的自發的なエネルギ一をプラス矛盾の要因だと規定する。そして、このプラス矛盾は、民族的な外觀をまとい、國際的で普遍的な社會主義を以てその內容とすると披瀝した。 Abe Kobo’s I go the Eastern Europe was published in the middle of the so-called ‘conflict controversy in socialism under’ in the 1955-58. According to the materialist dialectic, contradiction has been regarded as the only driving force of development. Since the so-called class contradictions in socialistic sate has been eliminated, socialistic state will not be able to be developed, and follow the road of stagnation. Not only Khrushchev’s Stalin criticism, but also controversy over this paradoxical structure resulted in a decisive crack in the view of the world that has been formulated ‘dialectical materialism’ by Stalin. It claimed that on this issue is a conflict confrontation also from the inside of the communist bloc to the resident, and the traditional dialectical conservatives were trying to protect the doctrinaire, is oriented and unity of contradictions regarded as a driving force behind the development of "unity, solidarity-match" there was a confrontation between Kangaku school recite the motive force of development. In the case of Abe Kobo, society in the interior of the society both conservatives to focus on the capitalist contradictions, to show off a different opinion also Kangaku faction regarded the conflict itself and the difficulty of development based on the experience in Eastern Europe. Abe is the capitalist contradiction that it is minus contradictions, to define a creative spontaneous energy of the masses who with a factor of plus contradiction. And, this plus contradiction, wearing the ethnic appearance, was Hireki to and its contents Womotte international universal socialism.

가변 용량형 유압 베인 펌프의 소음과 진동에 관한 비교분석

김병진(Byeong Jin Kim),전병선(Byung Sun Jeon),정진태(Jintai Chung) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11

Engine lubrication is closely related to the durability and the car’s fuel economy. Variable displacement vane pump is applied to increasing the engine performance and energy efficiency. However the noise problems are caused by the variable displacement vane pump of the high speed engine. In this paper, Noise and vibration experiment are performed on test machine with isolating other noise source of the engine and compare the trends of exciting and harmonic components to provide a basis for identifying the causes of noise in variable displacement vane pump.

자동차용 연료펌프의 진동 저감에 대한 연구

김병진(Byeong Jin Kim),원홍인(Hong In Won),이성원(Seong Won Lee),박상준(Sang Jun Park),정진태(Jintai Chung) 한국소음진동공학회 2013 한국소음진동공학회 학술대회논문집 Vol.2013 No.4

This article presents the reduction of vibration generated by an automobile fuel pump. In order to analysis the vibration of the fuel pump, a simplified dynamic model is established, which is composed of a rigid rotor and a equivalent springs. The equivalent stiffnesses of the upper and lower assemblies are evaluated by the comparison of modal testing results and the finite element analysis. the stiffness for the oil film of the journal bearing is extracted by using Reynolds equation. In addition, the time responses for the vibration of the vibration of the fuel pump are computed by using a commercial multi-body dynamics software, RecurDyn. Based on these results, some design suggestions are proposed to reduce the vibration of an automobile fuel pump.

클러치 제어를 위한 구동계 진동을 제거한 입력축 속도 신호 필터

김병진(Byeong-Jin Kim),이응수(Eung-Soo Lee),이희락(Hee-Rak Lee) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.11

수문모형(水文模型) ANSWERS의 반월유역(半月流域)에의 적용(適用)

김병진 ( Kim Byeong Jin ),박승우 ( Park Seung Woo ) 한국농공학회 1988 韓國農工學會誌 : 전원과 자원 Vol.30 No.1

A physically-based, distributed hydrologic model ANSWERS is described and its test results with two small watersheds near the Banweol reservoir are presented. The sizes of the watersheds are 270 ha and 477 ha, respectively. The smaller one has a mild topography with 40 percent forest area. The other has a steeper slope and 87 percent forest area. The model parameters were calibrated using observed runoff data and used for storm runoff simulation. The simulated peak discharges were in good agreement with the data. The model underestimated the recession parts of hydrographs as compared to the observed ones.

병진운동하며 전개하는 보의 잔류진동 저감

김병진(Byeong Jin Kim),정진태(Jintai Chung) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.6