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Packet SS-CDMA Modem with Carrier Frequency Offset Compensation

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Packet SS-CDMA Modem with Carrier Frequency Offset Compensat...

IEEE第14届国际个人无线移动通信大会

作者： Atsuyoshi Yamaguchi Jun Takagi Hiroshi Oguma Seong-kweon Kim Suguru Kameda Hiroyuki Nakase Yoji Isota Kazuo Tsubouchi Research Institute of Electrical Communication Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Research Institute of Electrical Communication Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Visiting researcher from Industrial Technology Institute Miyagi Prefectural GovernmentJapan. Research Institute of Electrical Communication Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Research Institute of Electrical Communication Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Research Institute of Electrical Communication Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Research Institute of Electrical Communication Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Research Institute of Electrical Communication Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan

We have proposed new carrier frequency offset compensation algorithm for packet spread-spectrum code- division multiple-access (SS-CDMA) system. For evaluation of carrier frequency offset, 11-chip

关键词： Packet SS-CDMA Carrier frequency offset Downlink

The effect of ground and wall on the impulse wave discharged from an open end of a duct

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The effect of ground and wall on the impulse wave discharged...

The 24th International Symposium on Shock Waves

作者： Y.H.kweon T.Aoki Y.Miyazato H.D.Kim T.Setoguchi Kyushu University 6-1 KasugakouenKasugaFukuoka 816-8580JAPAN Andong National University 388 Songchun-dongAndong 760-749KOREA Saga University 1 Honjo-machiSaga 840-8502JAPAN

When a shock wave is discharged from the exit of a duct, complicated unsteady flow field is formed near the exit of a duct. The flow is much more complicated under the ground effects or any other objects near the exit of a duct, such as the circumstance near the exit of the high-speed railway tunnel. The resulting flow is essentially three-dimensional unsteady with the effects of strong compressibility. In the present study, three-dimensional flow fields of the shock wave that is discharged from the exit of a duct are numerically investigated using a CFD method. Computations are carried out in the range below the Mach number of incident shock wave 1.5. The results obtained clearly show that the directivity and magnitude of the impulse wave discharged from the exit of a duct strongly depend upon the Mach number of incident shock wave and are significantly influenced by the effects of ground and wall.

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阿亨大学钢铁冶金研究所有关CO_(2)问题和废料再循环领域的研究工作

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钢铁 2003年第Z1期38卷 64-68页

作者： H.W.Gudenau D.Senk O.S.kweon C.Frohling T.Wieting S.Wang 阿亨大学

介绍了有关深海中干冰块的试验和计算,提到了地下煤气化时CO2的用途,以及用CO2溢流三级操作来提高石油产量.介绍了向电弧炉中混合喷吹CO2和煤、焦或直接还原细粉的新工作.研究了高炉喷吹煤、粉矿或粉尘.对竖炉中喷吹热还原气体和粉状固... 详细信息

介绍了有关深海中干冰块的试验和计算,提到了地下煤气化时CO2的用途,以及用CO2溢流三级操作来提高石油产量.介绍了向电弧炉中混合喷吹CO2和煤、焦或直接还原细粉的新工作.研究了高炉喷吹煤、粉矿或粉尘.对竖炉中喷吹热还原气体和粉状固体燃料进行了比较,其中热还原气体可由煤发生或废料气化或炉顶煤气.讨论了喷吹塑料,汽车燃油系统的轻馏焦和电厂灰中的未燃尽碳的试验结果.除在H2沸腾炉生产直接还原铁之外,还讨论了在回转窑或密闭竖炉中,研究矿/煤,粉尘/煤球团或团块的还原行为结果.

关键词： CO_(2) 废料再循环

Detection of Listeria monocytogenes in Foods and Characterization by PFGE

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Advances in Microbiology 2016年第4期6卷 343-349页

作者： Sanghun Park Hyowon Jung Myungsuk Lee Heejin Choi Jimin Kim Jihun Jung Sungkyu Park Musang Kim Kyungsik Kim Younghee Oh Aehee Chung kweon Jung Seoul Metropolitan Government Research Institute of Public Health and Environment Gwacheon-si Korea

The aims of the present study were to investigate the prevalence of Listeria monocytogenes in 1042 foods collected from different market to characterize the isolates by phenotypical and molecular methods. In particular, L. monocytogenes obtained from different types of foods such as RTE (kimbap), fish (smoked salmon and seasoned-dried slice fish) and meat (cut raw beef and pork) from 2009 to 2011, were used. Twelve samples (2.1%) were positive for L. monocytogenes. Detection rate of L. monocytogenes varied significantly by food type and ranged from 1.1% to 5.2%. Meat is the highest prevalence for L. monocytogenes (5.2%) followed by RTE (1.8%) and Fish (1.1%). Twelve isolates were also serotyped by the agglutination method. The most common serotypes detected in the 12 strains tested were 1/4b (75.0%), followed by 1/2a (16.7%), and 1/2b (8.3%). For this study, we used serotyping and detected 6 different virulence-associated genes (inlA, inlB, plcA, plcB, hlyA, and actA) and 16s rRNA using multiplex-PCR. PFGE was performed to determine genetic characterization of L. monocytogenes strains to define the genetic diversity.

关键词： Listeria monocytogenes PFGE RTE

Human Rhinoviruses in Korean with Acute Low Respiratory Tract Infections

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Open Journal of Medical Microbiology 2015年第4期5卷 237-245页

作者： Sanghun Park Sungsun Choi Jungim Jang Eunjeung Kim Seokju Cho Jihun Jung Kyungsik Kim Sungkyu Park Musang Kim Yeonsun Kim Younghee Oh kweon Jung Seoul Metropolitan Government Research Institute of Public Health and Environment Infectious Disease Research Division Gwacheon-si Korea Department of Public Health Graduate School Dankook University Seoul Korea

Human rhinovirus (HRV) must be viewed as a significant etiological agent of acute low respiratory tract infections (ALRIs) in infants and young children. The present study has been carried out to investigate the prevalence of recently identified respiratory viruses and determine the phylogenetic composition of HRV strains. In total, 923 nasopharyngeal aspirates (NPAs) collected from hospitalized patients with ALRIs between January and December 2010 (453 females and 470 males) at five referral hospitals in Seoul were tested for respiratory viruses. Viruses were detected by RT-PCR (Reverse transcription polymerase chain reaction) in 501 (54.3%) of the 923 positive samples obtained. Overall, HRV was detected in 7.9%, ADV in 10.2%, IFV in 21.9%, RSV in 3.6%, hMPV in 2.7%, HCoV in 2.5%, HEV in 1.6%, HBoV in 1.6%, and PIV in 2.4% of the samples. HRV infections occurred throughout the year, with peaks in January, May, July, and November of 2010. Phylogenetic analyses using the VP4/VP2 cording region showed that among the 27 isolates with HRV, 14 (52%) were infected with species A, 2 (7%) were infected with species B, and 11 (41%) were infected with the strains from HRV-C. HRV-C sequences are genetically distinct, sharing only 32% to 33% of their amino acids with HRV-A and HRV-B, while retaining 46% to 100% identity with each other. HRV-A, B, and C were co-circulating in children hospitalized with ALRIs in Korea in 2010. These findings indicated that HRV-C was the important causative agent of HRV associated with ALRIs.

关键词： NPAs ALRIs Human Rhinovirus

Angiolymphoid hyperplasia with eosinophilia affecting the scrotum in a child

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Angiolymphoid hyperplasia with eosinophilia affecting the sc...

The Second Eastern Asia Dermatology Congress(EADC2012)

作者： Su-Ran Hwang Joo-Ik Kim Ki-Hun Song Youg-Sun Cho Kyung-Hwa Nam Jin Park Seok-kweon Yun Han-Uk Kim Department of Dermatology Chonbuk National University Medical School

＜正＞Angiolymphoid hyperplasia with eosinophilia（ALHE） is an uncommon benign disorder presenting with itchy or painful papules and nodules that usually affects middle-aged women.A predilection site of ALHE is the periauricular region. Involvement of the genital area during childhood is very rare,with only one case reported in scientific literature involving the penis in a boy.A 4-year-old Korean boy presented with tender,pruritic,dull red nodules on the scrotum

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电能表便携式住宅电能表检测设备

上海计量测试 2017年第S1期44卷 41-44页

作者： Young-Kag Ban Kepid Amstech Young-Mun kweon Young And Kim 李龄刘岱鑫 Metrology Industry Division Korea Testing Certification(KTC) 成都市计量检定测试院

便携式电能表无线检测设备小巧灵活,方便现场电能表的检测。

关键词：检测设备电能表便携式住宅

Experimental investigation on supersonic jet noise from convergent-divergent nozzles

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Experimental investigation on supersonic jet noise from conv...

The 24th International Symposium on Shock Waves

作者： Y.Miyazato T.Aoki N.Kondoh M.Masuda Y.H.kweon H.D.Kim T.Setoguchi K.Matsuo Kyushu University 6-1 KasugakohenKasuga Fukuoka 816-8580 JAPAN Andong National University 388Songchun-dongAndongKyungbuk760-749KOREA Saga University 1 Honjo-machiSaga840-8502JAPAN The University of Kitakyushu 1-1HibikinoWakamatsu-kuKitakyushuFukuoka808-0135JAPAN

The characteristics of supersonic jet noise from a Mach 2.0 nozzle with a thin-nozzle-lip thickness have been experimentally studied over a range of nozzle pressure ratios from 2.0 to 10.0. The acoustic measurements were conducted in an anechoic room providing a free-field environment. Shadowgraph technique was used as the tool to study qualitatively the shock wave patterns which are primarily responsible for shock related noise. The measured screech frequencies under overexpanded conditions are found to agree with Tam’s theoretical results.

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Novel Influenza A（H1N1）Infection Rate of Exposed Person Without Respiratory Protector in Hospital

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Novel Influenza A（H1N1）Infection Rate of Exposed Person Wi...

中国医院协会第十七届全国医院感染管理学术年会暨第九届东...

作者： Oh Mee kweon dongsuk Lee Eun Suk Park Chang Oh Kim Sang Hun Han June Myung Kim Ki Hwan Kim Ju Hyun Lee Eun Jin Ha Kyungwon Lee Department of Infection Control Yonsei University College of Medicine SeoulKorea Severance Hospital Division of Infectious Diseases Department of Internal Medicine Yonsei University College of Medicine SeoulKorea Department of Pediatrics Yonsei University College of Medicine SeoulKorea Department of Laboratory Medicine Yonsei University College of MedicineSeoulKorea

＜正＞Background Novel influenza A（H1N1） is transmitted by air or ***,we should wear the respiratory protector to prevent infection spread during contact with infected or suspected *** purpose of this study is to investigate the infection status of the exposed persons who made a contact without a respiratory protector in the

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