• Title/Summary/Keyword: Spectrum Management

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An Offensive Change of Japan's Defense Strategy and Strategic Implication to the South Korea Navy: Focusing on the Japan's Amphibious Rapid Deployment Brigade Creation (일본 방위전략의 공세적 변화가 한국 해군에 주는 전략적 함의 - 일본 '수륙기동단(水陸機動團)' 창설에 대한 분석을 중심으로 -)

  • Jung, Gwang-Ho
    • Strategy21
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    • s.42
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    • pp.83-113
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    • 2017
  • After defeat in World War II, Japan's Peace Constitution committed the country to forego the acquisition of offensive military capabilities. However, in the midst of the post-cold war period, Japan began to change its security posture in line with the so-called 'normal state theory', which called for a more robust defense posture and expanded security activities. The second Abe administration promoted these security policies by issuing a National Security Strategy as well as a new National Defense Program Outline(NDPO) in 2013 and by establishing new security institutions such as the National Security Council. The Abe administration also adopted the new concept of a 'Unified Mobile Defense Force' in the 2013 which replaced the 'Dynamic Defense Force' as a new criteria for the Self-Defense Force's acquisition of military capabilities. In this new concept of military capabilities, the Ground Self-Defense Force is planning to replace existing divisions with mobile divisions and to form 'Amphibious Rapid Deployment Bridge' for the first time in 2018, which has long been taboo in Japan. Japan has experience a Marine Corps in the past. Likewise, an offensive changes in the military strategy can change the spectrum of strategy and 'Amphibious Rapid Deployment Bridge' plays a big role in this. Furthermore, Japan is increasing the Coast Guard's budget and capabilities in preparation for contingencies around the Senkaku islands (called the Diaoyu in Chinese). The South Korea navy should utilize Japan's changing security posture to deter immediate threat such as North Korea's military provocations and potential enemy threat such as China, Japan, Russia.

Effects of a Cognitive-Behavioral Nursing Intervention on Anxiety and Depression in Women with Breast Cancer undergoing Radiotherapy (인지행동간호중재가 방사선 치료 중인 유방암 여성의 불안과 우울에 미치는 효과)

  • Yoo, Myung-Sook;Lee, Hae-Jung;Yoon, Jung-A
    • Journal of Korean Academy of Nursing
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    • v.39 no.2
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    • pp.157-165
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    • 2009
  • Purpose: The purpose of this study was to analyze the effects of a cognitive-behavioral nursing intervention on anxiety and depression of patients with breast cancer undergoing radiotherapy. Methods: A nonequivalent control group design was used for the study. The research participants were patients with breast cancer (N=71; experimental group=35, comparison group=36) who received radiotherapy at P university hospital. The experimental group received a 6-week cognitivebehavioral nursing intervention (2 hr/week), which included nursing counseling, education about treatment choices for breast cancer and possible side effects and management strategies during radiotherapy, and rehabilitation exercise. Results: Following the intervention, the experimental group showed significantly lower levels of anxiety (Experimental group=$34.60{\pm}6.35$, Comparison group=$44.63{\pm}9.93$, t=3.552, p<.001) and depression (Experimental group=$10.20{\pm}6.61$, Comparison group=$17.81{\pm}10.85$, t=3.542, p<.001) than the comparison group. Conclusion: The findings from this study showed that cognitive-behavioral counseling applied by nurses is very effective to reduce anxiety and depression among patients with breast cancer. Therefore, providing nursing counseling to broader spectrum of patients with cancer should be considered. Further research would warrant future clinical application of nursing counseling.

Adaptive Frequent Pattern Algorithm using CAWFP-Tree based on RHadoop Platform (RHadoop 플랫폼기반 CAWFP-Tree를 이용한 적응 빈발 패턴 알고리즘)

  • Park, In-Kyu
    • Journal of Digital Convergence
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    • v.15 no.6
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    • pp.229-236
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    • 2017
  • An efficient frequent pattern algorithm is essential for mining association rules as well as many other mining tasks for convergence with its application spread over a very broad spectrum. Models for mining pattern have been proposed using a FP-tree for storing compressed information about frequent patterns. In this paper, we propose a centroid frequent pattern growth algorithm which we called "CAWFP-Growth" that enhances he FP-Growth algorithm by making the center of weights and frequencies for the itemsets. Because the conventional constraint of maximum weighted support is not necessary to maintain the downward closure property, it is more likely to reduce the search time and the information loss of the frequent patterns. The experimental results show that the proposed algorithm achieves better performance than other algorithms without scarifying the accuracy and increasing the processing time via the centroid of the items. The MapReduce framework model is provided to handle large amounts of data via a pseudo-distributed computing environment. In addition, the modeling of the proposed algorithm is required in the fully distributed mode.

Design of Film-Type Frequency Selective Surface Structure Based on Printed Electronic Technology to Implement Frequency-Selective Space in Buildings (건물 내 주파수 선택적 공간 구현을 위한 인쇄전자 기술 기반 필름형 주파수 선택 표면구조 설계)

  • Lee, In-Gon;Yoon, Sun-Hong;Hong, Ic-Pyo
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.28 no.12
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    • pp.1007-1010
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    • 2017
  • In this paper, a frequency selective surface(FSS) with bandstop operation for radio-frequency spectrum management is presented. The proposed FSS is composed of patterns of fractal-based miniaturized unit cells for stable performance for angles of incidence and polarizations. For practical applications requiring high productivity and environmental compatibility, we fabricated a film-type FSS by screen-printing using Ag ink, rather than a conventional manufacturing method using a printed circuit board. To validate this study, we measured the transmission characteristics of the proposed FSS using the free-space measurement method, and observed the received strength of signal penetrating the FSS film applied to a wall.

Treatment of life-threatening acute osteomyelitis of the jaw during chemotherapy: a case report

  • Jung, Junhong;Kim, Sumin;Park, Jun-Sang;Lee, Choi-Ryang;Jeon, Jae-ho;Kwon, Ik-Jae;Myoung, Hoon
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.20 no.4
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    • pp.251-259
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    • 2020
  • Oral and maxillofacial infection is a common complication in patients undergoing chemotherapy. The treatment of oral diseases in such patients differs from that administered to healthy patients. This paper reports a case of acute osteomyelitis of odontogenic origin following a recent chemotherapy session. The patient's condition was life-threatening because of neutropenic fever and sepsis that developed during the inpatient supportive care. However, the patient showed prompt recovery within 40 days following the use of appropriate antibiotics and routine dressing, without the requirement for surgical treatment, except tooth extraction. As seen in this case, patients undergoing chemotherapy are more susceptible to rapid progression of infections in the oral and maxillofacial areas. Therefore, accurate diagnosis through prompt clinical and radiological examination, identification of the extent of infection, and assessment of the patient's immune system are crucial for favorable outcomes. It is also necessary to eliminate the source of infection through appropriate administration of antibiotics. In particular, a broad-spectrum antibiotic with anti-pneumococcal activity is essential. Proper antibiotic administration and wound dressing are essential for infection control. Furthermore, close consultation with a hemato-oncologist is necessary for effective infection management based on the professional evaluation of patients' immune mechanisms.

Full mouth rehabilitation for a disabled patient: a case report (장애인 환자에서의 전악 수복 증례)

  • Kim, Ae-Ra;Vang, Mong-Sook;Park, Sang-Won;Lim, Hyun-Pil;Yun, Kwi-Dug;Yang, Hong-So
    • The Journal of Korean Academy of Prosthodontics
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    • v.51 no.3
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    • pp.208-213
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    • 2013
  • The spectrum of physically challenged patients who visit to a dental clinic for treatments are diverse: from ones of mild disabilities, who lead their lives in a similar way of ordinary people, to others who suffer from diseases that are difficult to be diagnosed, and need medical expertise due to systemic care or special techniques and instruments because of behavior management and difficulty of treatments. The patient in this case was 25-year-old autistic male patient who visited the clinic on account of overall treatment for multiple carious lesions. He could perform normal daily life to some degree under the care of a guardian. This case report describes predicaments of making a treatment plan resulted from lack of information about disabled patients, and difficulties of proceeding treatment procedures under general anesthesia. It is considered that sufficient consultation and history taking are needed before treatment for disabled patients.

Soft Tissue Reconstruction of Complete Circumferential Defects of the Upper Extremity

  • Ng, Zhi Yang;Tan, Shaun Shi Yan;Lellouch, Alexandre Gaston;Cetrulo, Curtis Lisante Jr;Chim, Harvey Wei Ming
    • Archives of Plastic Surgery
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    • v.44 no.2
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    • pp.117-123
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    • 2017
  • Background Upper extremity soft tissue defects with complete circumferential involvement are not common. Coupled with the unique anatomy of the upper extremity, the underlying etiology of such circumferential soft tissue defects represent additional reconstructive challenges that require treatment to be tailored to both the patient and the wound. The aim of this study is to review the various options for soft tissue reconstruction of complete circumferential defects in the upper extremity. Methods A literature review of PubMed and MEDLINE up to December 2016 was performed. The current study focuses on forearm and arm defects from the level at or proximal to the wrist and were assessed based on Tajima's classification (J Trauma 1974). Data reviewed for analysis included patient demographics, causality, defect size, reconstructive technique(s) employed, and postoperative follow-up and functional outcomes (when available). Results In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, 14 unique articles were identified for a total of 50 patients (mean=28.1 years). Underlying etiologies varied from extensive thermal or electrical burns to high impact trauma leading to degloving or avulsion, crush injuries, or even occur iatrogenically after tumor extirpation or extensive debridement. Treatment options ranged from the application of negative pressure wound dressings to the opposite end of the spectrum in hand transplantation. Conclusions With the evolution of reconstructive techniques over time, the extent of functional and aesthetic rehabilitation of these complex upper extremity injuries has also improved. The proposed management algorithm comprehensively addresses the inherent challenges associated with these complex cases.

Epidemiology and Histopathological Spectrum of Head and Neck Cancers in Bihar, a State of Eastern India

  • Siddiqui, Md. Salahuddin;Chandra, Rajeev;Aziz, Abdul;Suman, Saurav
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.8
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    • pp.3949-3953
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    • 2012
  • Head and neck cancers are amongst the commonest malignancies, accounting for approximately 20% of the cancer burden in India. The major risk factors are tobacco chewing, smoking and alcohol consumption, which are all preventable. This retrospective study presents data from the histopathology register for a five year period from 2002-2006 at Patna Medical College and Hospital, a tertiary care hospital drawing patients from the entire Bihar state, the 3rd most populous state of India with the majority of the population residing in rural areas. Incidence rates based on sex, age, site of lesion, including age standardized incidence rates for males and females, with mean age of presentation, distribution of histological variants and year wise trend were calculated. Out of 455 head and neck neoplasias, 241 were benign while 214 were malignant. The most common age group for all malignant biopsies was 7th decade for males and the 5th decade for females. Malignant cases were commoner in males than females with the male:female ratio of 3.1:1, which was found to be statistically significant by the chi-square (${\chi}^2$) test. The crude rate and age standardized incidence rate was 0.05 and 0.06 per 100,000 population respectively. Squamous cell carcinoma (SCC) contributed about 96% of all cases, with grade I being the most common. Larynx was the most common site for malignancy, the supraglottic region being its most commonly affected sub-site. This observed incidence patterns in the region are a reminder of widespread unawareness, low healthcare utilization with virtually non-existent cancer programs. It also underlines the need to advocate for reliable cost-effective programs to create awareness, for early detection and plan appropriate management strategies. There is a compelling demand for a cancer registry in this region as well as proper implementation of preventive measures to combat this growing threat of cancer, many of whose risk factors are preventable.

Autologous Chondrocyte Implantation (자가연골 세포이식)

  • Jeong, Hwa-Jae
    • Journal of the Korean Arthroscopy Society
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    • v.12 no.3
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    • pp.159-166
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    • 2008
  • Articular cartilage is a unique tissue with no vascular, nerve, or lymphatic supply. This uniqueness may be one of the reasons why chondral injuries will hardly heal and may progress to osteoarthritis over time. Currently, there are several surgical options for the treatment of articular cartilage lesions. Although there is some discrepancy as to which procedures work best in certain patients. The spectrum of treatment alternatives for articular cartilage defects can range from simple lavage and debridement, drilling, micro-fracturing, and abrasion to osteochondral grafting and autologous chondrocyte implantation. In 1984, for the first time, results of autologous chondrocyte implantation in a rabbit model were presented, showing hyaline cartilage repair. Clinical study using autologous cultured chondrocyte implantation in chondral defects of the human knee has been reported in 23 patients in 1994. In 14 out of 16 patients treated for chondral injuries on the femoral condyles, the results were good to excellent. It is important for the surgeon to understand the autologous chondrocyte implantation technique and to be aware on the postoperative management. Attention to surgical technique and selection of appropriate patient for the autologous chondrocyte implantation will provide with the best results.

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A Study on Interference Analysis between FM Broadcasting Service and ILS Localizer (FM 방송서비스와 ILS localizer사이의 간섭분석에 관한 연구)

  • Kim, Jin-Young;Kim, Eun-Cheol;Yang, Jae-Soo
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.45 no.3
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    • pp.7-18
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    • 2008
  • Radio systems decline in the system performances when one system is interfered from the other system. System parameters, which are operating frequency, transmit power, and so on, need to be determined in order that there is no interference between radio systems. We investigate the interference from the sound broadcasting service in the band 87.5-108 MHz to the ILS localizer, one of the aeronautical services, in the band of 108-112 MHz. The results are compared with the interference criteria. And then several system parameters, which are frequency, transmit power, and location, are determined in order to avoid the interference from the FM sound broadcasting service which occupies the frequency band near the band of the aeronautical services. The results of this paper can be applied to set up system parameters of the ILS localizer so that system performance can be maximized. Besides, the result of this paper can be applied for determining spectrum management policy.