• Title/Summary/Keyword: Transference

Search Result 152, Processing Time 0.027 seconds

Experimental modal analysis of transverse-cracked rails-influence of the cracks on the real track behavior

  • Domingo, Laura Montalban;Giner, Beatriz Baydal;Martin, Clara Zamorano;Herraiz, Julia I. Real
    • Structural Engineering and Mechanics
    • /
    • v.52 no.5
    • /
    • pp.1019-1032
    • /
    • 2014
  • Rails are key elements in railway superstructure since these elements receive directly the train load transmitted by the wheels. Simultaneously, rails must provide effective stress transference to the rest of the track elements. This track element often deteriorates as a consequence of the vehicle passing or manufacturing imperfections that cause in rail several defects. Among these rail defects, transverse cracks highlights and are considered a severe pathology because they can suddenly trigger the rail failure. This study is focused on UIC-60 rails with transverse cracks. A 3-D FEM model is developed in ANSYS for the flawless rail in which conditions simulating the crack presence are implemented. To account for the inertia loss of the rail as a consequence of the cracking, a reduction of the bending stiffness of the rail is considered. The numerical models have been calibrated using the first four bending vibration modes in terms of frequencies. These vibration frequencies have been obtained using the Experimental Modal Analysis technique, studying the changes in the modal parameters of the rails induced by the crack and comparing the results obtained by the model with experimental results. Finally, the calibrated and validated models for the single rail have been implemented in a complete railway ballasted track FEM model in order to study the static influence of the cracks on the rail deflection caused by a load passing.

A Tactilely Transparent Soft Glove with High Grasping Force (높은 파지력을 가지며 촉감을 전달할 수 있는 유연한 글러브)

  • Jeong, Yong-Jun;Kim, Jong-In;Jeon, Hyeong-Seok;Lee, Deok-Won;Kim, Yong-Jae
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.22 no.12
    • /
    • pp.1011-1020
    • /
    • 2016
  • This paper introduces a tactilely transparent soft glove composed of soft materials and flexible structures. Although it is hard to achieve a high grasping force with conventional grip-assist gloves made from soft material, the proposed glove can exert a high force by using a novel structure. This structure has a triangular shape composed of flexible structural frames, soft fabric, and belts. It can produce grip-assist moment compliantly without harmful force or misalignment with the human fingers. The whole finger part that comes into contact with objects is made of thin and soft fabric in order to facilitate sensation transference. The proposed tactilely transparent soft glove enables the user to manipulate various objects owing to both the softness and high grasping force; it helps lifting heavy weight objects as well as permitting delicate tactile feeling on the palm and fingers. The proposed concept was applied to a two-finger grip-assist device for validation. In addition, the experimental results regarding grasping objects, fingertip force, and grasping force are presented.

Psychoanalytic Aspect of Obesity (비만의 정신분석적 고찰)

  • Lee, Moo-Suk
    • Korean Journal of Psychosomatic Medicine
    • /
    • v.3 no.2
    • /
    • pp.207-213
    • /
    • 1995
  • Author reviewed psychodynamics and psychoanalytic treatment of obesity. A variety of psychodynamics and unconscious conflicts have been described in obese patients : eating as a defense against depression, eating as a substitute for maternal love, obese body as a larger penis, and eating as a self-soothing. There was a gross neglect of certain normal parenting roles in obese family. The parenatal superego structure was not as perfectionistic. As with children and other patients with preoedipal pathology, in obese patients the analyst in addition to being transference object is a new and different object who promote healthy maturation. Because of obese parients, in there projective identification, can provoke intense countertransference, the analyst have to consider it. On the other hand, many analysts' countertransferences to superobese patients is that huge person recalls one's own childhood relationship with adults and bring forth a feeling of helplessness.

  • PDF

Astronomical Characteristics of Cheonsang-yeolcha-bunyajido from the Perspective of Manufacturing Methods

  • Ahn, Sang-Hyeon
    • Journal of Astronomy and Space Sciences
    • /
    • v.32 no.1
    • /
    • pp.51-62
    • /
    • 2015
  • I investigated a method for drawing the star chart in the planisphere Cheonsang-yeolcha-bunyajido. The outline of the star chart can be constructed by considering the astronomical information given in the planisphere alone and the drawing method described in Xin-Tangshu; further the chart can be completed by using additional information on the shape and linking method of asterisms out of an inherited star chart. The circles of perpetual visibility, the equator, and the circle of perpetual invisibility are concentric, and their common center locates the Tianshu-xing, which was defined to be a pole star in the Han dynasty. The radius of the circle of perpetual visibility was modified in accordance with the latitude of Seoul, whereas the other circles were drawn for the latitude of $35^{\circ}$, which had been the reference latitude in ancient Chinese astronomy. The ecliptic was drawn as an exact circle by parallel transference of the equator circle to fix the location of the equinoxes at the positions recorded in the epitaph of the planisphere. The positions of equinoxes originated from the Han dynasty. The 365 ticks around the boundary of the circle of perpetual invisibility were possibly drawn by segmenting the circumference with an arc length instead of a chord length with the ratio of the circumference of a circle to its diameter as accurate as 3.14 presumed. The 12 equatorial sectors were drawn on the boundary of the star-chart in accordance with the beginning and ending lodge angles given in the epitaph that originated from the Han dynasty. The determinative lines for the 28 lunar lodges were drawn to intersect their determinative stars, but seven determinative stars are deviated. According to the treatises of the Tang dynasty, these anomalies were inherited from charts of the period earlier than the Tang dynasty. Thus, the star chart in Cheonsang-yeolcha-bunyajido preserves the old tradition that had existed before the present Chinese tradition reformed in approximately 700 CE. In conclusion, the star chart in Cheonsang-yeolcha-bunyajido shows the sky of the former Han dynasty with the equator modified to the latitude of Seoul.

Stability Evaluation of Floating Dock during Construction and Launching of Caisson for Breakwater (방파제용 대형 케이슨 제작/진수에 따른 부양식 독의 안정성 해석)

  • Seok, Jun;Park, Jong-Chun;Jeong, Se-Min;Kim, Sung-Yong;Kang, Heon-Yong;Kim, Moo-Hyun;Kang, Yoon-Koo
    • Journal of Ocean Engineering and Technology
    • /
    • v.27 no.6
    • /
    • pp.43-55
    • /
    • 2013
  • In general, huge caissons for breakwaters have been constructed on land or a floating dock. In the case of the construction on a floating dock, a 4 step installation procedure is involved: i) construction on a floating dock, ii) transportation by the floating dock to an area near the target sea, iii) launching from the floating dock, and iv) transference by tug-boats to the installation site. It is especially important to pay attention to the dynamic stability of the floating dock against the conditions in the sea during steps i) and iii). In this paper, the static and dynamic stabilities of a caisson on a floating dock are evaluated based on IMO rules during the construction and launching of the caisson on a floating dock by using independent commercial S/Ws such as NAPA, WAMIT, and CHARM3D.

A Case Study on the Socially-Prescribed Perfectionistic Client: Focused on Fairbairn's Psychological Structure (사회부과적 완벽주의 성향의 내담자 단일사례연구: Fairbairn의 심리구조를 중심으로)

  • Joon Sik Ko;In Sook Ahn
    • Industry Promotion Research
    • /
    • v.8 no.2
    • /
    • pp.109-117
    • /
    • 2023
  • Modern industrial society demands socially-prescribed perfectionism from office workers and causes self-discrepancy. Therefore, the purpose of this study was to propose a counseling strategy that integrates the divided self based on Fairbairn's psychological structure and reduces self-discrepancy by changing interpersonal relation patterns. 14 sessions were conducted once a week from March 2022 to July 2022. T-test was used as a research method to compare the level of self discrepancy by conducting the Self Questionnaire before and after. During the initial stage, the client was in conflict with his boss and showed anger, depression, somatic symptoms such as gastrointestinal disorder, strict judgement on himself and others, and high self-discrepancy. This research showed that the client's libidinal ego and anti-libidinal ego were de-repressed and integrated into his central ego, and his self-discrepancy level was decreased, which was confirmed through the pre-post test. This research, as a case study applying Fairbairn's psychological structure, has a meaning that it confirmed a change in the interpersonal relation patterns of a socially-prescribed perfectionistic client.

UV-cured Polymer Solid Electrolyte Reinforced using a Ceramic-Polymer Composite Layer for Stable Solid-State Li Metal Batteries

  • Hye Min Choi;Su Jin Jun;Jinhong Lee;Myung-Hyun Ryu;Hyeyoung Shin;Kyu-Nam Jung
    • Journal of Electrochemical Science and Technology
    • /
    • v.14 no.1
    • /
    • pp.85-95
    • /
    • 2023
  • In recent years, solid-state Li metal batteries (SSLBs) have attracted significant attention as the next-generation batteries with high energy and power densities. However, uncontrolled dendrite growth and the resulting pulverization of Li during repeated plating/stripping processes must be addressed for practical applications. Herein, we report a plastic-crystal-based polymer/ceramic composite solid electrolyte (PCCE) to resolve these issues. To fabricate the one-side ceramic-incorporated PCCE (CI-PCCE) film, a mixed precursor solution comprising plastic-crystal-based polymer (succinonitrile, SN) with garnet-structured ceramic (Li7La3Zr2O12, LLZO) particles was infused into a thin cellulose membrane, which was used as a mechanical framework, and subsequently solidified by using UV-irradiation. The CI-PCCE exhibited good flexibility and a high room-temperature ionic conductivity of over 10-3 S cm-1. The Li symmetric cell assembled with CI-PCCE provided enhanced durability against Li dendrite penetration through the solid electrolyte (SE) layer than those with LLZO-free PCCEs and exhibited long-term cycling stability (over 200 h) for Li plating/stripping. The enhanced Li+ transference number and lower interfacial resistance of CI-PCCE indicate that the ceramic-polymer composite layer in contact with the Li anode enabled the uniform distribution of Li+ flux at the interface between the Li metal and CI-PCCE, thereby promoting uniform Li plating/stripping. Consequently, the Li//LiFePO4 (LFP) full cell constructed with CI-PCCE demonstrated superior rate capability (~120 mAh g-1 at 2 C) and stable cycle performance (80% after 100 cycles) than those with ceramic-free PCCE.

Investigation of Ground Remote Sensing Technique Using CCD Camera (CCD 카메라를 이용한 지상원격탐사 기술 개발)

  • Kim, Eung Nam
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.26 no.2D
    • /
    • pp.325-333
    • /
    • 2006
  • Recently, in the case of observing the global environment, satellite remote sensing technology has been important. It's because satellite remote sensing is valuable for assessing relatively large areas. But now, small scale remote sensing techniques are needed which can be applicable to the detail investigation of plant tree areas which afforest land after the large scale construction of roads, dams and airports. In this study, we tried to develop and propose a lower altitude sensing technique which can be used in ground remote sensing by using a CCD camera. As a result of this investigation the following can be concluded: We recognized the transference characteristics of filters which were used in comparative tests about the four ground remote sensing devices. We also found that the near-IR camera could be used for an imaging spectral radiometer in the extraction of the vegetation index. Furthermore, we found that the vegetation index has varied hour by hour during the day of the experiment. Finally, we brought about an increase phase of the NDVI in a forest fire, which caused considerable damage, by developing new ground remote sensing technology.

Art Therapeutic Analysis of Gunung-geori of Hwanghaedo-gut (황해도굿 군웅거리의 예술치료적 분석)

  • Lee, Ji-Hong
    • (The) Research of the performance art and culture
    • /
    • no.39
    • /
    • pp.5-30
    • /
    • 2019
  • Gut, Korean shamanist performance, is the archetype of Korean art therapy. It is because gut has the archetype of Korean mind and expresses the archetype in an artistic and therapeutic way. This paper compares and analyzes Gunung-geori of Hwanhaedo-gut and art therapy theories from two perspectives: the range of therapy and the therapeutic principles of performing ways. Gunung-geori aims to solve prolonged conflicts within a family, linking individual problems to family relationship. Such a therapeutic effect of Gunung-geori is well explained through the theory of Bowen's Family Therapy. Also the therapeutic principles that Gunung-geori's performing way are closely related to "transference" of Freud and "putting in the role" in drama therapy.

A Research on the Transference of Trust from Service Provider to MyData Banking Service (서비스 제공 기업에 대한 신뢰가 금융 마이데이터 서비스에 전이되는 현상에 관한 연구)

  • Ah Ro Kum;Jung Hoon Lee;Yun A Yeo
    • Journal of Information Technology Services
    • /
    • v.23 no.1
    • /
    • pp.97-121
    • /
    • 2024
  • As data usage grows in importance, ensuring individual control over personal information becomes critical. The emergence of the 'MyData' concept addresses this, particularly in financial services. Although the institutional and technological framework for financial MyData services is in place, there's a need to establish consumer understanding and perception of its usefulness and safety for successful activation. This study focuses on investigating the impact of trust on the intention to use the new mobile banking service, financial MyData. This study has three objectives. Firstly, to analyze whether trust in financial MyData services and trust in financial MyData service providers affect the intention to use financial MyData services. Secondly, to analyze the process of forming trust in financial MyData services based on the phenomenon of transferring trust in service providers to trust in services. Thirdly, to identify the process by which trust transfer occurs between service providers and financial MyData services. Ultimately, the goal of this study is to promote the intention to use financial MyData services based on the concept of trust and to activate these services. In summary, this study emphasizes the significance of trust in financial MyData services, exploring its impact on user intention and the transfer of trust from providers to services. By promoting consumer trust, the research aims to contribute to the activation of financial MyData services.