• Title/Summary/Keyword: Branch system

Search Result 1,335, Processing Time 0.033 seconds

Studies on the Rotation System to Forage Crop Cultivation at the Alpine Area (고냉지 사료작물 윤작체계 조사연구)

  • Han, Seong-Yun;Kim, Dae-Jin
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.13 no.4
    • /
    • pp.300-304
    • /
    • 1993
  • This experiment was carried out to increase the utility and productivity of forage crop as to investigate the rotation system which is suitable to cultivat at the alpine area. The treatments were 9 crops combinations including corn - rye treatment. The results obtained were as follows: 1. Rye can be cultivated satisfactorily at cold and high altitude areas such as Tae Kwan Ryong. 2. Corn, to be raised as a second crop after rye in the same year, does not have to be early (short) or medium maturity varieties in the high alpine area. 3. It is possible to increase the harvest by 30% in terms of dry melter or green crop yield through raising two crops, rye and corn, in the same year. 4. Maturity period or growth conditions of corn. as a tropical crop and the best forage crop, can improve or worsen acording to the external circumstance, such as low temperature resulting from high atitude.

  • PDF

Transverse Cervical Artery and Appropriate Veins as Recipient Vessels in Head and Neck Reconstruction (두경부재건 시 수용부 혈관으로서 목가로동맥의 유용성과 적절한 정맥의 선택)

  • Lee, Dong Won;Lee, Won Jai;Lew, Dae Hyun;Rah, Dong Kyun;Tark, Kwan Chul
    • Archives of Plastic Surgery
    • /
    • v.35 no.3
    • /
    • pp.283-288
    • /
    • 2008
  • Purpose: The purpose of this study is to evaluate the transverse cervical artery of those who received preoperative radiotherapy or radical neck dissection and those who are unable to utilize the branch of external carotid artery system, which are most commonly used as recipient artery in head and neck reconstruction. Methods: 10 patients were selected as head and neck cancer candidates for study. 8 patients received radical neck dissection or modified radical neck dissection and 3 patients underwent preoperative radiotheraphy. In call cases, reconstruction using free flap was performed with transverse cervical artery as recipient artery and posterolateral cervical vein or transverse cervical vein as recipient vein. Results: Partial necrosis of flap due to wound infection was noted in one case and successful microsurgery was achieved in all other cases. The average pedicle length was 9.3 cm and all arteries underwent end to-end anastomosis. In 7 patients, posterolateral cervical vein was used as recipient artery and transverse cervical vein was utilized in 3 patients. Conclusion: In cases where recipient artery from external carotid system cannot be utilized due to preoperative radiotherapy or radical neck dissection, the transverse cervical artery can be an alternative option of choice. Due to diverse variations of transverse cervical vein as a recipient vein, the posterolateral cervical vein may be considered in such cases.

Development and Tank Test of an Autonomous Underwater Vehicle 'ISiMI' (자율무인잠수정 테스트베드 이심이의 개발과 수조시험)

  • Jun, Bong-Huan;Park, Jin-Yeong;Lee, Pan-Mook;Lee, Fill-Youb;Oh, Jun-Ho
    • Journal of Ocean Engineering and Technology
    • /
    • v.21 no.2 s.75
    • /
    • pp.67-74
    • /
    • 2007
  • Maritime and Ocean Engineering Research Institute (MOERI), a branch of KORDI, has designed and manufactured a model of an autonomous underwater vehicle (AUV) named ISiMI (Integrated Submergible for Intelligent Mission Implementation). ISiMI is an AUV platform to satisfy the various needs of experimental test required for development of challenging technologies newly investigated in the field of underwater robot; control and navigational algorithms and software architectures. The main design goal of ISiMI AUV is downsizing which will reduce substantially the operating cost compared to other vehicles previously developed in KORDI such as VORAM or DUSAUV. As a result of design and manufacturing process, ISiMI is implemented to be 1.2 m in length, 0.17 m in diameter and weigh 20 kg in air. A series of tank test is conducted to verify the basic functions of ISiMI in the Ocean Engineering Basin of MOERI, which includes manual control with R/F link, auto depth, auto heading control and a final approach control for underwater docking. This paper describes the implementation of ISiMI system and the experimental results to verify the function of ISiMI as a test-bed AUV platform.

The Simulation of Myocardium Conduction System using DEVCS and Discrete Time CAM (DEVCS 및 Discrete Time CAM을 이용한 심근 전도 시스템의 시뮬레이션)

  • Kim, K.N.;Nam, G.K.;Son, K.S.;Lee, Y.W.;Jun, K.R.
    • Proceedings of the KOSOMBE Conference
    • /
    • v.1997 no.05
    • /
    • pp.150-155
    • /
    • 1997
  • Modelling and Simulation of the activation process for the myocardium is meaningful to understand special excitation conduction system in the heart and to study cardiac functions. In this paper, we propose two dimensional cellular automata model for the activation process of the myocardium and simulated by means of discrete time and discrete event algorithm. In the model, cells are classified into anatomically similar characteristic parts of heart; SA node, internodal tracks, AV node, His bundle, bundle branch and four layers of the ventricular muscle, each of which has a set of cells with preassigned properties, that is, activation time, refractory duration and conduction time between neighbor cell. Each cell in this model has state variables to represent the state of the cell and has some simple state transition rules to change values of state variables executed by state transition function. Simulation results are as follows. First, simulation of the normal and abnormal activation process for the myocardium has been done with discrete time and discrete event formalism. Next, we show that the simulation results of discrete time and discrete event cell space model is the same. Finally, we compare the simulation time of discrete event myocardium model with discrete time myocardium models and show that the discrete event myocardium model spends much less simulation time than discrete time myocardium model and conclude the discrete event simulation method Is excellent in the simulation time aspect if the interval deviation of event time is large.

  • PDF

Performance Analysis of DS/CDMA with Hybrid SC/MRC over Nakagami Fading Channel (나카가미 페이딩 채널하에서 Hybrid SC/MRC를 가진 DS/CDMA 성능분석)

  • 김원섭;박진수
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.28 no.7A
    • /
    • pp.477-484
    • /
    • 2003
  • In this paper, we compared and analyzed the influence of the fading index and the number of branch of diversity in the Nakagami-m fading channel environment when the MRC diversity and the hybrid SC/MRC are applied to the DS/CDMA system. We considered that the number of branches were 2,3, and 4, respectively and applied an individual diversity type according to the number of branches, when nakagami fading index(m) were 1 and 2. We found that when the Nakagami fading index m is small, that is to say, when fading is inferior, the application of a hybrid SC/MRC diversity Rake receiver is efficient; however, when the fading environment is good, the application of the MRC diversity Rake receiver is efficient. As a result, we verified that when the actual communication environment is inferior, the hybrid SC/MRC diversity that selects a strong signal to be received on an individual number of branches could replace the MRC diversity, as a method to achieve a similar performance by reducing the complexity of the system.

Malignant Neoplasm Prevalence in the Aktobe Region of Kazakhstan

  • Bekmukhambetov, Yerbol;Mamyrbayev, Arstan;Jarkenov, Timur;Makenova, Aliya;Imangazina, Zina
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.16 no.18
    • /
    • pp.8149-8153
    • /
    • 2016
  • An oncopathological state assessment was conducted among adults, children and teenagers in Aktobe region for 2004-2013. Overall the burden of mortality was in the range of 94.8-100.2 per 100,000 population, without any obvious trend over time. Ranking by pathology, the highest incidences among women were registered for breast cancer (5.8-8.4), cervix uteri (2.9-4.6), ovary (2.4-3.6) and corpus uteri, stomach, esophagus, without any marked change over time except for a slight rise in cervical cancer rates. In males, the first place in rank was trachea, bronchus and lung, followed by stomach and esophagus, which are followed by bladder, lymphoid and hematopoietic tissues pathology. Agian no clear trends were apparent over time. In children, main localizations in cancer incidence blood (acute lymphocytic leukemia, lymphosarcoma, acute myeloid leukemia, Hodgkin's disease), brain and central nervous system, bones and articular cartilages, kidneys, and eye and it's appendages, in both sexes. Similarly, in young adults, the major percentage was in blood and lymphatic tissues (acute myeloid leukemia, acute lymphocytic leukemia, Hodgkin's disease) a significant percentage accruing to lymphosarcoma, lymphoma, other myeloid leukemia and hematological malignancies as well as tumors of brain and central nervous system, bones and articular cartilages. This initial survey provides the basis for more detailed investigation of cancer epidemiology in Aktobe, Kazakhstan.

Growth Response on the Euonymus fortunei 'Emelad' n 'Gold' as affected by Artificial Plantings Soil Properties during Dry Spring Season (봄철 건조기 용기형 벽면녹화에서 식재지반 조성에 따른 황금줄사철의 적응성)

  • Ju, Jin-Hee;Kim, Hea-Ran;Park, Heon;Yoon, Yong-Han
    • Journal of Environmental Science International
    • /
    • v.23 no.7
    • /
    • pp.1299-1305
    • /
    • 2014
  • For evaluating the effect of various artificial planting soil properties on the Euonymus fortunei 'Emelad'n Gold' growth, a container green wall system experiment was conducted in a wall of greenhouse at Konkuk University, Glocal campus. The experimental artificial planting grounds were prepared with different organic soil conditioner ratios (Control, $A_4O_1$, $A_2O_1$ and $A_1O_1$) and with drought tolerance and an ornamental value Euonymus fortunei 'Emelad'n Gold' was planted. The soil and plant characteristics were investigated from April to Jun 2010. The volumetric soil moisture contents were significantly increasing order as the amount of organic soil conditioner level increased in order to $A_1O_1$ > $A_2O_1$ > $A_4O_1$ > Control. At 4 treatment, soil chemical properties were inversely related to organic soil container ratios increase. The differences of root collar caliper, number of branch, and survival rate between the organic soil conditioner ratio were not significantly affected by organic soil conditioner. But, plant height, internode length, leaf length and leaf width were significantly shorter on plants planted $A_1O_1$ than plants planted other treatments. Therefore, Euonymus fortunei 'Emelad'n Gold' had good growth response regardless of organic soil conditioner ratio and the plant is expected to be a highly valuable shrub for the green wall system if it should be considered in integration with stormwater retention or as a soil conditioner for increasing soil water contents in artificial planting soil.

Implementation of an Instruction Buffer to process Variable-Length Instructions (가변 길이 명령어 처리를 위한 명령어 버퍼 구현)

  • 박주현;김영민
    • Journal of the Korean Institute of Telematics and Electronics C
    • /
    • v.35C no.12
    • /
    • pp.66-76
    • /
    • 1998
  • In this paper, we implement a buffer capable of handling short loops references to statistically lower the miss rate of variable-length instructions stored in the instruction buffer. MAU(Mark Appending Unit) takes the instructions as they are fetched from external memory, performs some initial decode operations and stores the results of the decode in the buffer for reducing multiple decodes when instructions are executed repeatedly such as in a loop. It includes a decision block of whether hit or not for effectively processing branch instructions Each module of the proposed architecture of processing variable-length instruction is described in VHDL structurally and behaviorally and whether it is working well or not is checked on V-System simulator of Model Technology Inc. We synthesized and simulated the architecture using an ASIC Synthesizer tool with 0.6$\mu\textrm{m}$ 5-Volt CMOS COMPASS library. Operation speed is up to 140MHz. The architecture includes about 17,000 gates.

  • PDF

Anti-Interference Analysis of IS-OFDM using the Frequency Diversity (주파수 다이버시티를 이용한 IS-OFDM 시스템의 간섭 성능 분석)

  • 김상우;박종현;유흥균;이상태;정순기
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.14 no.10
    • /
    • pp.1030-1035
    • /
    • 2003
  • In this paper, we compare the performance of IS-OFDM(interference suppressing orthogonal frequency division multiplexing) system with that of the conventional OFDM system. Each parallel branch symbol of IS-OFDM is multiplied by the orthogonal sequence and distributed into all sub-carriers. Then, each sub-carrier transmits information composed of the symbol components of all parallel branches in the given frame. The structure of IS-OFDM shows the frequency diversity characteristic. Therefore, IS-OFDM can be robust to the narrowband interference. BER performances are found in the narrow-band interference and a harmonic noise channels. When JSR(Jamming to signal ratio) increases from -10 dB to +10 dB in the constant interference bandwidth, IS-OFDM outperforms the conventional OFDM and the BER difference between IS-OFDM and OFDM is reduced as JSR increases. Also, the similar properly can be shown when interference bandwidth increases at the constant JSR. In the harmonic noise channel, we can find the good performance of IS-OFDM when the h-rate(harmonic noise bandwidth to signal bandwidth ratio) increases from 0.01 to 0.8. So, simulation results show that the IS-OFDM is more robust to the interference than the conventional OFDM.

Case Study of Settlement of Disputes and Complications of Dinning-out Franchise Affiliates (외식프랜차이즈 가맹점의 갈등과 분쟁해결 사례연구)

  • Kim Ki-Hong;Chung Ung-Yong;Byun Joon-Young
    • Journal of Arbitration Studies
    • /
    • v.15 no.3
    • /
    • pp.207-232
    • /
    • 2005
  • This study is for an example of arbitration of a dining out franchise company in Korea and franchise system currently is expanding and developing to international trade. The main reason for that is franchising has some benefits compared to the existing trades. Korean dining-out industry has largely developed for the past 20 years, but there are little world-class company of the industry, because dining-out industry should go for qualitative as well as quantitative growth at the same time. Korean dining-out industry has adopted licensing and joint-venture among growth strategies, but the franchise system among them seems to have taken its place as a representative strategy for management to develop dining-out industry. The history of Korean dining-out franchise industry is very short and it is true that we have no a management philosophy of accompanying growth with franchise due to a short experiences and recognition of top management or managers and short-term strategy for branch expansion. For a brilliant growth of dining-out franchise industry, to settle disputes through arbitration, in case of disputes taking place, is very important, because the franchise industry is a frequent-trading sector, requires expert-level knowledge, favors a closed examination and also needs a fast solution. As the franchise industry has been sharply growing around the world, there is more possibility of disputes, and various and complicated laws of the industry are related to disputes as well, so much more expert-level knowledge is required to solve disputes. Therefore, affiliated headquarters hope a disclosed settlement of their disputes and their any disputes should be fast settled for the benefits of affiliated members.

  • PDF