• Title/Summary/Keyword: Connecting layer

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A Study on the Micro-defects Characteristics and Latch-up Immune Structure by RTA in 1MeV P Ion Implantation (1MeV 인 이온 주입시 RTA에 의한 미세결함 특성과 latch-up 면역에 관한 구조 연구)

  • Roh, Byeong-Gyu;Yoon, Seok-Beom
    • Journal of IKEEE
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    • v.2 no.1 s.2
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    • pp.101-107
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    • 1998
  • This paper is studied micro-defect characteristics by phosphorus 1MeV ion implantation and Rs, SRP, SIMS, XTEM for the RTA process was measured and simulated. As the dose is higher, the Rs is lower. When the dose are $1{\times}10^{13}/cm^2,\;5{\times}10^{13}/cm^2,\;1{\times}10^{14}/cm^2$, the Rp are $1.15{\mu}m,\;1.15{\mu},\;1.10{\mu}m$ respectively. As the RTA time is longer, the maximum concentration position is deeper from the surface and the concentration is lower. Before the RTA was done, we didn't observe any defect. But after the RTA process was done, we could observe the RTA process changed the micro-defects into the secondary defects. The simulation using the buried layer and connecting layer structure was performed. As results, the connecting layer had more effect than the buried layer to latch-up immune. Trigger current was more $0.6mA/{\mu}m$ and trigger voltage was 6V at dose $1{\times}10^{14}/cm^2$ and the energy 500KeV of connecting layer Lower connecting layer dose, latch-up immune characteristics was better.

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A study on latch-up immune structure by high energy ion implantation (고에너지 이온 주입을 이용한 latch-up 면역에 관한 구조 연구)

  • 노병규;안태준;강희원;조소행;오환술
    • Proceedings of the IEEK Conference
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    • 1998.06a
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    • pp.441-444
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    • 1998
  • This paper is concerned with researching latch-up immune CMOS structure was performed. By the simulation results, the connecting layer had more effect than the buried layer to latch-up immune. When the connecting layer was the dose 1*10$^{14}$ /cm$^{2}$ and the energy 500KeV, the trigger current was more 0.6mA/.mu.m and the trigger voltage was 6V. The more the connecting layer dose was lower, the more the latch-up immune characteristics was butter.

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The Changes of NO, nNOS, Norepinephrine by Acupucture at LU7, HT5, PC6 Acupoints in Rats (수삼음경의 락혈 침자가 백서의 혈위 조직내 nNOS. NO와 조직 및 혈장 Norepinephrine의 변화에 미치는 영향)

  • Shin, Wook;Lee, Yumi;Lee, Kyoungin;Choi, Donghee;Kim, Mirae;Na, Changsu;Kim, Sunmin;Pyo, Byoungsik;Youn, Daehwan
    • Korean Journal of Acupuncture
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    • v.33 no.2
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    • pp.75-83
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    • 2016
  • Objectives : A previous study demonstrated that the connecting points of three yang meridians attenuated changes of nNOS, and Norepinephrine(NE) in rats. The current study investigated the changes in nNOS, NO and NE upon the needle insertion at varying depths at the connecting point of three yin meridians of the hand. Methods : Needles were inserted into rats, on both left and right sides of the connecting point, including the LU7, HT5 and PC6 acupoints which are three yin meridians of the hand. After insertion, needles were retained for five minutes. Each acupuncture groups were treated acupuncture at each acupoint and at the depths of superficial, middle and deep layer. After the retention, blood was drawn via cardiac puncture, and tissues of each point near meridian vessel was extracted to examine the changes in the expression of nNOS, NO and NE. Results : Compared with the superficial layer group, nNOS production significantly decreased in the middle and deep layer at LU7 acupoint group and in the deep layer at HT5, PC6 acupoint group. The tissue NE decreased in the deep layer on PC6 acupoint and the plasma NE increased at the middle layer at LU7 acupoint group but decreased at the deep layer on at LU7 acupoint group. Conclusions : Acupuncture at connecting points of three yin meridians of the hand can regulate the activities of nNOS, and NE.

Studies on NO, nNOS, eNOS, iNOS and NE Expression by Acupuncture at SP4, KI4 and LR5 (족삼음경의 락혈에 시술된 침 자극에 의한 NO, NOS, NE 발현 연구)

  • Lee, Yumi;Shin, Wook;Choi, Donghee;Kim, Mirae;Na, Changsu;Youn, Daehwan
    • Korean Journal of Acupuncture
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    • v.34 no.1
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    • pp.37-46
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    • 2017
  • Objectives : The acupuncture about acupoint affects the production of NO, NOS, and NE.Local action of acupuncture is important for acupuncture treatment. To prove this, the revelation degree of NO, NOS, and NE was observed by stimulating the acupuncture at the connecting point of SP4, KI4, and LR5 in the depths of Superficial layer, Middle layer and Deep layer. Methods : Needles were inserted into rats, on each right and left sides of the connecting point, SP4, KI4 and LR5 acupoints which are the stream points of the foot meridian. After insertion, needles were retained for three minutes. After the retention, rat was sacrificed via cardiac puncture, and tissues of each SP4, KI4 and LR5 point near meridian vessel was extracted to examine the changes in the expression of NO, NOS and NE. Results : In terms of the effect in NO production, there was significant increase in the Superficial layer, Middle layer and Deep layer at KI4. In terms of the effect in NE production, there was significant decrease in the Superficial layer at SP4 and increase in the Superficial layer, Middle layer and Deep layer at LR5. In terms of the effect in nNOS production, there was significant increase in the Superficial layer, Middle layer and Deep layer at SP4 also in the Superficial layer at KI4. In terms of the effect in eNOS production, there was a significant increase in the Superficial layer, Middle layer and Deep layer at SP4, KI4 and LR5. In terms of the effect in iNOS production, there was significant increase in the Superficial layer, Middle layer and Deep layer at SP4, KI4 and LR5. Conclusions : The effect of acupuncture applied at the connecting point of six meridians of the foot on the activities of NO, NOS and NE could be observed, and it can be induced from the effect of needle stimulation on disrupted local and systemic nervous responses.

Effects of Acupuncture at Varying Depths at the Connecting Point on the Changes of Levels of nNOS, No and Norepinephrine in Rats (수삼양경 락혈의 깊이별 침자가 백서의 nNOS, NO 및 Norepinephrine의 변화에 미치는 영향)

  • Lee, Yumi;Shin, Wook;Lee, Kyoungin;Choi, Donghee;Kim, Mirae;Na, Changsu;Kim, Sunmin;Pyo, Byoungsik;Youn, Daehwan
    • Korean Journal of Acupuncture
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    • v.32 no.4
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    • pp.160-168
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    • 2015
  • Objectives : This study was intended to observe the changes in the expression of neurotransmitters, such as nNOS, NO and NE upon the needle insertion at varying depths at the connecting point. Methods : Needles were inserted into rats, on both left and right sides of the connecting point, including the LI6, SI7 and TE5 acupoints which are three yang meridians of the hand. After insertion, needles were retained for five minutes. Each acupuncture groups were treated acupuncture at each acupoint and at the depths of superficial, middle and deep layer. After the retention, blood was drawn via cardiac puncture, and tissues of each point near meridian vessels were extracted to examine the changes in the expression of nNOS, NO and NE. Results : In terms of the effect in nNO production, there was a significant increase only in the middle and deep layer at SI7 acupoint, but there was no significant change in the expression of NO. Regarding the formation of norepinephrine within tissues, the middle layer on LI6 acupoint, the middle layer and the deep layer on TE5 acupoint showed a significant increase, while production of plasma norepinephrine was significantly decreased at the middle layer and the deep layer on LI6 acupoint and the deep layer on SI7 acupoint. Conclusions : The effect of needles applied at the connecting point of three yang meridians on the activities of nNOS, and NE could be observed, and it can be induced that the effect of needle stimulation on disrupted nervous system can be examined through additional researches based on this one.

Interaction analysis of Continuous Slab Track (CST) on long-span continuous high-speed rail bridges

  • Dai, Gonglian;Ge, Hao;Liu, Wenshuo;Chen, Y. Frank
    • Structural Engineering and Mechanics
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    • v.63 no.6
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    • pp.713-723
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    • 2017
  • As a new type of ballastless track, longitudinal continuous slab track (CST) has been widely used in China. It can partly isolate the interaction between the ballastless track and the bridge and thus the rail expansion device would be unnecessary. Compared with the traditional track, CST is composed of multi layers of continuous structures and various connecting components. In order to investigate the performance of CST on a long-span bridge, the spatial finite element model considering each layer of the CST structure, connecting components, bridge, and subgrade is established and verified according to the theory of beam-rail interaction. The nonlinear resistance of materials between multilayer track structures is measured by experiments, while the temperature gradients of the bridge and CST are based on the long-term measured data. This study compares the force distribution rules of ballasted track and CST as respectively applied to a long span bridge. The effects of different damage conditions on CST structures are also discussed. The results show that the additional rail stress is small and the CST structure has a high safety factor under the measured temperature load. The rail expansion device can be cancelled when CST is adopted on the long span bridge. Beam end rotation caused by temperature gradient and vertical load will have a significant effect on the rail stress of CST. The additional flexure stress should be considered with the additional expansion stress simultaneously when the rail stress of CST requires to be checked. Both the maximum sliding friction coefficient of sliding layer and cracking condition of concrete plate should be considered to decide the arrangement of connecting components and the ultimate expansion span of the bridge when adopting CST.

The Automatic Topology Construction of The Neural Network using the Fuzzy Rule (퍼지규칙을 이용한 신경회로망의 자동 구성)

  • 이현관;이정훈;엄기환
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.5 no.4
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    • pp.766-776
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    • 2001
  • In the constructing of the multi layer neural network, the network topology is often chosen arbitrarily for different applications, and the optimum topology of the network is determined by the long processing of the trial and error. In this paper, we propose the automatic topology construction using the fuzzy rule that optimizes the neurons of hidden layer, and prune the weights connecting the hidden layer and the output layer during the training process. The simulation of pattern recognition, and the experiment of the mapping of the inverted pendulum showed the effectiveness of the proposed method.

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A note on the Geostrophically Controlled Volume Transport of the Tgushima Current

  • Seung, Young-Ho
    • Journal of the korean society of oceanography
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    • v.34 no.4
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    • pp.231-235
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    • 1999
  • A simple analytic model for estimating the volume transport of the Tsushima Current is considered by assuming that the transports through the connecting channels, the Korea and Tsugaru Straits, are geostrophically controled. The model gives a much simpler form of solution than that by Minato and Kimura (1980). It depends no longer on the geometry of the marginal sea and on the thickness of western boundary layer relative to the dimension of the ocean, but considers the geometry of the connecting channels ignored by Nof (1993). The external parameters turn out to be the oceanic meridional sea level difference between the two channels, the depth of the channels and the meridional position of the marginal sea. For typical value of the depth ratio of the channels to the ocean, the model gives an estimate of the Tsushima Current transport of acceptable magnitude.

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FCCL 제작 시 Cu Sputter 조건에 따른 Through Hole 특성 연구

  • Kim, Sang-Ho;Yun, Yeo-Wan
    • Proceedings of the Korean Institute of Surface Engineering Conference
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    • 2008.11a
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    • pp.15-16
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    • 2008
  • In case manufacturing COF, through hole should be made to be used for a pathway connecting the conductive layers of its both faces. In case Cu-plating inside of through hole with electroless plating way, contact between Cu and PI film gets bad to be fell apart from PI by the impact of applying to the electric devices. Therefore, after sputtering is applying on inner through hole, then a method to perform electroplating process. In this study, after changing sputtering condition to manufacture FCCL, we looked the changeability of the upper PI and inner hole Cu layers. Making use of RF Magnetron sputtering equipment, we coated Cu thin film and Cu-plated on it through electroplating. After cold-mounting the completed FCCL, we examined hole section through an optical microscope. From the result of test, with parameters deposition pressure and deposition time, both the thickness of the hole plated layer and PI plated upper layer increased at regular rate, increasing the thickness of Cu sputter layer. However, from the result of test in increasing RF-power, we could know the increment rate of hole plated layer is considerably greater than that of PI plated upper layer. Therefore, we finally acquired good result; if you want only to increase the plated layer of inner hole, it's much better to increase RF-power.

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HSE Block : Automatic Optimization of the Number of Convolutional Layer Filters using SE Block (HSE Block : SE Block을 활용한 합성곱 신경망 필터 수 자동 최적화)

  • Tae-Wook Kim;Hyeon-Jin Jung;Ellen J. Hong
    • Journal of the Institute of Convergence Signal Processing
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    • v.23 no.3
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    • pp.179-184
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    • 2022
  • In this paper, we are going to study how we can automatically determine the number of convolutional filters for the optimal model without a search algorithm. This paper proposes HSE Block by connecting SE Block proposed in SENet to a convolutional neural network and connecting a convolutional neural network not learned at the bottom. An experiment was conducted to increase the number of filters by one per 3 epoch using two datasets for the HSEBlock model and to increase the number of filters by the value in the filter. Based on this experiment, the model was constructed with multi-layer HSE Block instead of layer HSE Block, and the experiment was carried out using a dataset that was more difficult to learn than the one used in the previous experiment. The effect of HSE Block was verified by conducting an experiment with the number of HSE Blocks set to 2, 3, 4, and 5 on a dataset that is more difficult to learn than before.