• Title/Summary/Keyword: Wright Control

Search Result 24, Processing Time 0.024 seconds

A Study on Characteristics of Healing Environment in the Late Work of Frank Lloyd Wright (프랭크 로이드 라이트 후기 작품의 치유환경적 특성에 관한 연구)

  • Kim, Kwang-Ho
    • Journal of The Korea Institute of Healthcare Architecture
    • /
    • v.12 no.1
    • /
    • pp.41-48
    • /
    • 2006
  • The purpose of this study is to find Healing elements in the late work of Frank Lloyd Wright. Healing elements are mainly composed of physical, social and psychological functions, which are clearly reflected in holistic attitude and intuition in his Organic theory of Architecture. Late works of Wright since 1935 show particularly shapes of triangle and circle creating the emotional images associated with Hope and Infinity. His image-oriented design attitude is thought to be strongly related to the pursuit of Utopian ideal which means peaceful condition. He regarded it as the consequence of integrity and control, which could be thought as condition of Healing environment. Refuge and Prospect can be complementary elements of spatial expression representing peaceful and dynamic condition of the Nature itself. Five works selected in this case study have unique design ideas related to the function and image of Healing environment interpreted by the criteria of Refuge and Prospect.

  • PDF

Methods to determine the volume of infrapatellar fat pad as an indicator of anterior cruciate ligament tear

  • Cheruvu, B.;Tsatalis, J.;Laughlin, R.;Goswami, T.
    • Biomaterials and Biomechanics in Bioengineering
    • /
    • v.3 no.1
    • /
    • pp.27-35
    • /
    • 2016
  • Anterior knee pain is a major problem among adolescents and young adults especially those who participates in sports. The most common pathogenesis of anterior knee pain can arise from compression and shear forces in the patellofemoral joint. It is also caused by impingement of infrapatellar fat pad. Fat pad impingement can occur when the fat pad becomes swollen and inflamed due to a direct blow or chronic irritation. As a result, the bottom tip (or inferior pole) of the patella can pinch the fat pad. One of the many causes of swollen fat pad can be secondary to anterior cruciate ligament (ACL) injury. The aim of this study was to compare the infrapatellar fat pad volume in patients with acute ACL injury and a group of age-, gender-, and activity- matched controls with intact ligament. Axial magnetic resonance (MR) images have been performed on 32 patients with torn ACL and 40 control patients. The volume of the fat pad was measured digitally from MR image by using a 3d Reconstruction software, ellipsoidal approximation, and a MATLAB code. The results were compared between patients with torn ACL and control group. Patients with a torn ACL had a significantly larger fat pad than the controls (P=0.01). There was no significant difference between the methods used to measure the infrapatellar fat pad volume (P=0.83-0.87). Thus, lesions of the infrapatellar fat pad is often associated with ACL injury.

Preparation and Characterization of Demineralized Bone Particle-loaded PLGA Scaffold for Tissue Engineered Bone (조직공학적 골재생을 위한 탈미넬화된 골분을 함유한 다공성 지지체의 제조 및 그 특성)

  • Jang Ji Wook;Lee Bong;Han Chang Whan;Kim Mun Suk;Cho Sun Hang;Lee Hai Bang;Khang Gilson
    • Polymer(Korea)
    • /
    • v.28 no.5
    • /
    • pp.382-390
    • /
    • 2004
  • One of the significant natural bioactive materials is demineralized bone particle (DBP) whose has a powerful induce. of new bone growth. In this study, we developed the DBP loaded poly-lactide (PLA) and poly(L-lactide-co-glycolide) (PLGA) scaffolds for the possibility of the application of the tissue engineered bone. PLA/DBP and PLGA/DBP scaffolds were prepared by solvent casting/salt leaching method and were characterized by porosimeter, scanning electron microscopy. BMSCs were stimulated by osteogenic medium and characterized by histological stained Wright-Giemsa, Alizarin red, von Kossa, and alkaline phosphate activity (ALP). DBP impregnated scaffolds with BMSCs were implanted into the back of athymic nude mouse to observe the effect of DBP on the osteoinduction compared with control scaffolds. It can be observed that the porosity was above $90.2\%$ and the pore size was above 69.1$\mu$m. BMSCs could be differentiated into osteoprogenitor cells as result of wright-giemsa, alizarin red, von Kossa and ALP staining. In in vivo study, we could observed calcification region in PLA/DBP and PLGA/DBP groups, but calcification did not occur almost in control scaffolds. From these results, it seems that DBP as well as BMSCs play an important role for bone induction in PLA/DBP and PLGA/DBP scaffolds.

A Distributed Control Architecture for Advanced Testing In Realtime

  • Thoen Bradford K.;Laplace Patrick N.
    • Proceedings of the Earthquake Engineering Society of Korea Conference
    • /
    • 2006.03a
    • /
    • pp.563-570
    • /
    • 2006
  • Distributed control architecture is based on sharing control and data between multiple nodes on a network Communication and task sharing can be distributed between multiple control computers. Although many communication protocols exist, such as TCP/IP and UDP, they do not have the determinism that realtime control demands. Fiber-optic reflective shared memory creates the opportunity for realtime distributed control. This architecture allows control and computational tasks to be divided between multiple systems and operate in a deterministic realtime environment. One such shared memory architecture is based on Curtiss-Wright ScramNET family of fiber-optic reflective memory. MTS has built seismic and structural control software and hardware capable of utilizing ScramNET shared memory, opening up infinite possibilities in research and new capabilities in Hybrid and Model-In-The-Loop control.

  • PDF

Anti-Slip Control and Speed Sensor-less Vector Control of the Railway Vehicle (철도차량의 Anti-Slip 제어 및 속도센서리스 벡터제어)

  • Jho Jeong-Min;Kim Gil-Dong
    • Journal of the Korean Society for Railway
    • /
    • v.8 no.3
    • /
    • pp.216-221
    • /
    • 2005
  • In electric motor coaches, the rolling stocks move by the adhesive effort between rail and driving wheel. Generally, the adhesive effort is defined by the function of both the wright of electric motor coach and the adhesive effort between rails and driving wheel. The characteristics of adhesive effort is strongly affected by the conditions between rails and driving wheel. When the adhesive effort decreases suddenly, the electric motor coach has slip phenomena. This paper proposes a re-adhesion control based on disturbance observer and sensor-less vector control. The numerical simulation and experimental results point out that the proposed re-adhesion control system has the desired driving wheel torque response for the tested bogie system of electric coach. Based on this estimated adhesive effort, the re-adhesion control is performed to obtain the maximum transfer of the tractive effort.

An Artificial Inclusion Seeding Methodology for Fatigue Design of Aerospace Ti Castings (인공개재물 이식법을 통한 항공기용 티타늄 주물의 피로설계)

  • Paul, L. Ret;Park, Yong-Kuk;Kim, Jin-Gon
    • Journal of Korea Foundry Society
    • /
    • v.26 no.4
    • /
    • pp.184-190
    • /
    • 2006
  • Presence of inclusions in Ti castings imparts detrimental effects on the mechanical performance of castings. However, actual inclusions do not occur very frequently and they are difficult to locate. As a result, acquirement of specimens for mechanical tests and thus in-depth research of the adverse influence of inclusions are challenging. To address this problem, artificial inclusion seeding methodology is developed to emulate actual inclusions in Ti investment castings. Firstly, to validate that this new methodology does not result in inherent mechanical property degradation, Ti specimens with machined, backfilled and HIPed holes are produced and compared to control (unaltered), cast Ti material. Fatigue test results indicate that this 'machine-and-HIP methodology without seeding' does not result in any fundamental mechanical property alteration, which would bias ensuing comparative results. Secondly, based on this result, validation of the artificially seeded inclusions being equivalent to 'as cast' inclusions is performed by comparing their fatigue behaviors. Test specimens created by the novel artificial inclusion seeding methodology are equivalent to Ti casting specimens containing actual cast-in inclusions, and an adverse effect of inclusions in investment castings is confirmed.

Modelling of CANDU NPP Reactor Regulating System using CATHENA

  • Cho, Cheon-Hwey;Kim, Hee-Cheol;Park, Chul-Jin;Lee, Sang-Yong;A.C.D. Wright
    • Proceedings of the Korean Nuclear Society Conference
    • /
    • 1996.05b
    • /
    • pp.579-585
    • /
    • 1996
  • A CATHENA model for the reactor regulating system is developed and tested independently. A CATHENA plant model is created by combining this model with the reference CATHENA model which has been developed to analyze a loss-of-coolant accident (LOCA) for the Wolsong 2 generating station. This model is intended to provide a trip coverage analysis capability. The CATHENA reactor regulating system model includes the demand power routine. the light water zone control absorbers, mechanical control absorbers and adjusters. The CATHENA model is tested for steady state at 103% full power. A postulated accident transient (small LOCA) was also tested. The results show that the control routines in CATHENA were set up properly.

  • PDF

Atomic Force Microscopy: a Powerful Tool for Biological Engineering on the Micro/Nano Scale

  • Lovitt, R.W.;Wright, C.J.
    • Proceedings of the Korean Society for Applied Microbiology Conference
    • /
    • 2004.06a
    • /
    • pp.187-193
    • /
    • 2004
  • This paper covers the basic principles of the AFM and how these systems may be used to image biological materials and measure particle-surface interactions in process environments. e.g. visualize molecules and structure on surfaces in aqueous environments, measure forces of interaction of proteins and DNA, biosurface and cells. Examples of work include applications biological spore control agents control systems, process materials selection for example appropriate filters for biological processing, mechanical properties and bio-surface engineering.

  • PDF

On the application of artificial intelligence in acute myeloid leukemia therapy

  • Meng, Jie;Zhong, Ruilan;Wu, Zhiqiang;Dong, Min
    • Advances in nano research
    • /
    • v.13 no.2
    • /
    • pp.175-186
    • /
    • 2022
  • This study is a randomized pretest-posttest design that aims to investigate the effect of early entrepreneurship education on cognitive and non- early entrepreneurship education, non-cognitive skills, creativity, self-efficacy, Bizworld cognitive skills of male sixth-grade primary school students. A total of 45 students were selected by multi-stage random sampling method and were assigned randomly to experimental, active-control and control groups. The experimental group received entrepreneurship education based on the Bizworld entrepreneurship program. The results indicate that early entrepreneurship education had an effect on non-cognitive skills (such as risk taking propensity, creativity, self-efficacy, persistence and need for achievement. It seems that early entrepreneurship education is a proper strategy to develop children's non-cognitive skills in late years of primary school. These skills will affect children's individual, educational, social and occupational future and can have long term benefits for students, families and society.

Agent-based Shipment Algorithm for Capacitated Vehicle Routing Problem with Load Balancing (CVRP를 위한 에이전트 기반 Shipment 알고리듬 개발)

  • Oh, Seog-Chan;Yee, Shang-Tae;Kim, Taioun
    • Journal of Korean Institute of Industrial Engineers
    • /
    • v.32 no.3
    • /
    • pp.200-209
    • /
    • 2006
  • Load building is an important step to make the delivery supply chain efficient. We present a family of load makeup algorithms using market based control strategy, named LoadMarket, in order to build efficient loads where each load consists of a certain number of finished products having destinations. LoadMarket adopts Clark-Wright algorithm for generating initial endowment for Load Traders who cooperate to minimize either total travel distance or the variance with respect to the travel distances of loads by means of the spot market or double-sided auction market mechanism. The efficiency of the LoadMarket algorithms is illustrated using simulation based experiments.