• Title/Summary/Keyword: AGC

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A Case of Regression of Advanced Gastric Cancer by Herbal Medicine - A Retrospective Case Study with 8-years Follow-up (한약에 의한 진행성 위선암의 퇴축에 대한 증례보고 - 8년간의 추적조사를 통한 후향적 증례연구)

  • Park, Jeong-Seok;Lee, Yeon-Weol;Cho, Jung-Hyo;Son, Chang-Gue;Cho, Chong-Kwan;Yoo, Hwa-Seung
    • The Journal of Internal Korean Medicine
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    • v.28 no.1
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    • pp.193-198
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    • 2007
  • Objective : The aim is to derive further studies evaluating the effectiveness of oriental medical treatment on advanced gastric cancer (AGC) patients. We present a case of a stage IV AGC patient who has survived over 8 years. Methods : We followed up all documents related to the patient. We prescribed to the patient HangAmDan (HAD) three times a day over five years. Abdomen CT was performed to evaluate the therapeutic efficacy. Results : The patient has survived over 8 years. Abdomen CT has shown complete regression. Conclusion : This case may give us the possibility of that oriental medical treatment offers potential benefits for patients with AGC.

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A Study on the Design and Fabrication of RF Receiver Module for IMT-2000 Handset (IMT-2000단말기용 RF 수신모듈 설계 및 제작에 관한 연구)

  • 이규복;송희석;박종철
    • Journal of the Microelectronics and Packaging Society
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    • v.7 no.3
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    • pp.19-25
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    • 2000
  • In this paper, we describe RF receiver module for IMT-2000 handset with 5 MHz channel bandwidth. The fabricated RF receiver module consists of Low Noise Amplifier, RF SAW filter, Down-converter, If SAW filter, AGC and PLL Synthesizer. The NF and IIP3 of LNA is 0.8 dB, 3 dBm at 2.14 GHz, conversion gain of down-converter is 10 dB, dynamic range of AGC is 80 dB, and phase noise of PLL is -100 dBc at 100 kHz. The receiver sensitivity is -110 dBm, adjacent channel selectivity is 48 dBm.

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Operating Method of BESS for Providing AGC Frequency Control Service Considering Its Availability Maximization (배터리 가용성 극대화를 고려한 BESS의 AGC 주파수제어 추종운영방안)

  • Choi, Woo Yeong;Yu, Ga Ram;Kook, Kyung Soo
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.65 no.7
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    • pp.1161-1168
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    • 2016
  • Battery energy storage system(BESS) attract the attention of the power system operators with its fast response to a disturbance in spite of its limited energy capacity. This paper proposes the operating method of BESS for following the Automatic Generation Control(AGC) frequency control which is centrally distributed by a system operator. As BESS needs to just meet the control requirement from the system operator, it should be able to properly manage the state of charge(SOC) of BESS to be available to control signal. For doing these, the proposed method distributes the control requirement to available batteries in proportion to its SOC. In addition, unavailable batteries are controlled to recover the SOC to an appropriate range, and the recovering power is supplied by available batteries meeting the control requirement. Moreover, the proposed method manages the efficiency of power conversion system (PCS) by limiting the number of PCS to be assigned for the low control requirement. Finally, the case studies are carried out to verify the effectiveness of proposed strategy.

Palliative and Neoadjuvant Chemotherapy for Advanced Gastric Cancer Patients (진행성 위암에서의 항암요법에 대하여)

  • Hee Seok Moon
    • Journal of Digestive Cancer Research
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    • v.2 no.2
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    • pp.45-51
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    • 2014
  • Gastric cancer is the second most common cancer and the third leading cause of cancer-related deaths in Korea. Many cases of gastric cancer are detected in the early stages on standard medical examinations; complete surgical and endoscopic resection is the most recommended treatment for early-stage gastric cancer. Nevertheless, many patients have already progressed to advanced gastric cancer (AGC) upon diagnosis, and the prognosis of such patients is very poor. Combination chemotherapy has been shown to produce a better quality of life (QOL) and to increase overall survival in AGC patients. However, approximately 50% of patients do not respond to the current first-line chemotherapy, while most patients who do respond eventually show disease progression. Accordingly, various second-line regimens have been investigated, and active salvage chemotherapy has been shown to improve the QOL and clinical outcomes in select AGS patients who can tolerate it. There is also an increasing need for neoadjuvant therapy for treating gastric cancer; therefore, various clinical trials have been set up to investigate different regimens. Neoadjuvant therapy is currently established as the standard treatment for locally AGC in Europe; it has contributed to lowering the nodal stages and has reduced overall mortality rates. Despite these benefits, many uncertainties remain. Therefore, further prospective, high quality randomized controlled trials for neoadjuvant therapies are needed to clarify their clinical benefits and to establish the most effective treatment strategies for AGC.

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The Design of IQ Vector Modulator having AGC Function for IMT-2000 (AGC 기능을 갖춘 IMT-2000용 IQ 벡터 모듈레이터 설계)

  • 오인열;박종화;손광철;김태웅;전형준;나극환
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.14 no.6
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    • pp.575-583
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    • 2003
  • In thesis we applied the short or open reflection type for IQ vector modulator The open or short type is operated even exception of other redundancy circuit. Generally IQ vector modulator uses MESFET in performing reflection open or short, then minus voltage which is having complex structure is required to operate MESFET via IQ signal. However BJT can be substituted for MESFET, BJT is improved characteristics like as cutoff frequency, electron mobility and so on. We used BJT in IQ vector modulator which is compatible with TTL level in I,Q digital signal, and attached AGC function. We got the result of operations within ${\pm}$ 1$^{\circ}$ phase and ${\pm}$ 0.6 dB amplitude Variation With full range of 20 dB and Variation of ${\pm}$ 6$^{\circ}$ Phase and ${\pm}$ 0.5 dB amplitude Versus full temperature range.

Recent Progress in Immunotherapy for Gastric Cancer

  • Jeesun Yoon;Tae-Yong Kim;Do-Youn Oh
    • Journal of Gastric Cancer
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    • v.23 no.1
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    • pp.207-223
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    • 2023
  • Gastric cancer (GC) is the fourth leading cause of cancer-related deaths worldwide. Under the standard of care, patients with advanced GC (AGC) have a median survival time of approximately 12-15 months. With the emergence of immunotherapy as a key therapeutic strategy in medical oncology, relevant changes are expected in the systemic treatment of GC. In the phase III ATTRACTION-2 trial, nivolumab, a monoclonal anti-programmed cell death 1 (PD-1) antibody, as a third- or later-line treatment improved overall survival (OS) compared with placebo in patients with AGC. Furthermore, nivolumab in combination with 5-fluorouracil and platinum as a first-line treatment improved OS in patients with human epidermal growth factor receptor-2 (HER2)-negative AGC in the global phase III CheckMate-649 study. Another anti-PD-1 antibody, pembrolizumab, in combination with trastuzumab and cytotoxic chemotherapy as a first-line treatment, significantly improved the overall response rate in patients with HER2-positive AGC. Therefore, immune checkpoint inhibitors (ICIs) are essential components of the current treatment of GC. Subsequent treatments after ICI combination therapy, such as ICI rechallenge or combination therapy with agents having other modes of action, are being actively investigated to date. On the basis of the success of immunotherapy in the treatment of AGC, various clinical trials are underway to apply this therapeutic strategy in the perioperative and postoperative settings for patients with early GC. This review describes recent progress in immunotherapy and potential immunotherapy biomarkers for GC.

Adding AGC Case Studies to the Educator's Tool Chest

  • Schaufelberger, John;Rybkowski, Zofia K.;Clevenger, Caroline
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.1226-1236
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    • 2022
  • Because students majoring in construction-related fields must develop a broad repository of knowledge and skills, effective transferal of these is the primary focus of most academic programs. While inculcation of this body of knowledge is certainly critical, actual construction projects are complicated ventures that involve levels of risk and uncertainty, such as resistant neighboring communities, unforeseen weather conditions, escalating material costs, labor shortages and strikes, accidents on jobsites, challenges with emerging forms of technology, etc. Learning how to develop a level of discernment about potential ways to handle such uncertainty often takes years of costly trial-and-error in the proverbial "school of hard knocks." There is therefore a need to proactively expedite the development of a sharpened intuition when making decisions. The AGC Education and Research Foundation case study committee was formed to address this need. Since its inception in 2011, 14 freely downloadable case studies have thus far been jointly developed by an academics and industry practitioners to help educators elicit varied responses from students about potential ways to respond when facing an actual project dilemma. AGC case studies are typically designed to focus on a particular concern and topics have thus far included: ethics, site logistics planning, financial management, prefabrication and modularization, safety, lean practices, preconstruction planning, subcontractor management, collaborative teamwork, sustainable construction, mobile technology, and building information modeling (BIM). This session will include an overview of the history and intent of the AGC case study program, as well as lively interactive demonstrations and discussions on how case studies can be used both by educators within a typical academic setting, as well as by industry practitioners seeking a novel tool for their in-house training programs.

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Remote On-line Determination of the Load Rate Limit of Generation in AGC (AGC 운용에 있어서의 원격 On-line 최대 증감발율 취득 기법)

  • Kwon, Soon-Man;Jeon, Dong-Hoon;Moon, Won-Yong;Kim, Suk-Joo
    • Proceedings of the KIEE Conference
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    • 2000.11a
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    • pp.119-121
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    • 2000
  • The possibility of a remote on-line determination of the maximum load rates that are basically set at generation plants is investigated in automatic generation control (AGC) system. Energy management system (EMS) generates a test input to a remote power plant to get the samples of the generator output. Then from the samples it can be attempted to determine an approximate value of the load rate limit set by the operator. It is shown in computer simulation that in actual power plants the limit can be approximately determined from the input-output characteristics of the plants for a unit-step input.

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A Study on Improvement Plan of AGC Operation (자동발전제어(Automatic Generation Control) 운용 개선방안)

  • Nam, J.H.;Yoon, Y.B.;Park, S.W.;Choo, J.B.;Kim, S.H.;Lee, J.S.
    • Proceedings of the KIEE Conference
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    • 1999.07c
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    • pp.1070-1072
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    • 1999
  • Automatic Generation Control(AGC) is a control system whose objectives are to hold system frequency close to a specified nominal value and to maintain each unit's generation at the most economic value. It has been used to control the output of a generator by the control signal of the generator, but it is not appropriate to apply to generators which adopt the distributed control system. In this paper a method for improving the AGC operation is proposed, and the different response of each generator and various types of control systems of generators are considered. The interface among Remote Terminal Detector(RTU) and control systems and the direct delivery of the data between EMS and DCS also are proposed in the paper.

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Repetitive Compensation Control for AGC System By Using Pre-Pass Rolling Data

  • Kim, Hwan-Seong;Park, Jin-Seon;Lee, Sang-Dol;Lee, Keum-Jae;Park, Sung-Kwan
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.150.5-150
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    • 2001
  • This paper deals with a modified repetitive control method for compensating automatic gauge control (AGC) to reduce the effect of skid mark which directly influence the quality of products in plate mill process. Since the skid mark on the plate have thermal difference, it makes a different stretching rate and deflection of thickness. Firstly, the (AGC) system and the plate mill process are described by considering function in each control levels. The skid mark of the plate in practical control fields is shown. Also, its frequency variation is given by on-line FFT analysis method. Secondly, a key idea of the modified repetitive control method with time varying period disturbance is represented and compared with standard repetitive control method. Lastly, in simulation ...

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