• Title/Summary/Keyword: North wei

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Trends in Nasopharyngeal Carcinoma Mortality in China, 1973-2005

  • Huang, Tian-Ren;Zhang, Si-Wei;Chen, Wan-Qing;Deng, Wei;Zhang, Chun-Yan;Zhou, Xin-Juan;Zhai, Ri-Hong
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.6
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    • pp.2495-2502
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    • 2012
  • Nasopharyngeal carcinoma (NPC) is a disease with distinct ethnic and geographic distribution. The incidence of NPC in Chinese residing in Asia has declined over the last few decades, but NPC mortality trends in the entire Chinese population over time have not been systematically evaluated. In this study, we examined NPC mortality at the national level in China between 1973-2005. Mortality rates were derived from the databases of national retrospective surveys on cancer mortality conducted in the periods of 1973-1975, 1990-1992, and 2004-2005, respectively. NPC was classified according to the International classification of diseases. Age-adjusted mortality rates were calculated by direct standardization according to the world standard population. Trends in rates were evaluated by age, gender, geographic areas, and socioeconomic status. From 1973 to 2005, there was a general trend of decrease in NPC mortality in China, with higher rates in the south on a downward trend in the north. The age-standardized NPC mortality rates were 2.60 per 100,000 in 1973-1975, 1.94 per 100,000 in 1990-1992, and 1.30 per 100,000 in 2004-2005, respectively. The trend was similar in both men and women, in both urban and rural areas, but the declining rates in females were more remarkable than in males. The mortality rates were higher for the age groups above 50 years than those less than 50 years of age, both showing downward trend over 30-year period. In summary, the overall NPC mortality has consistently decreased in China over the past three decades, particularly in women and in old adults.

A Comparative Study on the Style of Clothing of Goguryeo and Xianbei Tribe - Focused on Northern Wei Period - (고구려와 선비족 의복 형태 비교 연구 - 북위시기를 중심으로 -)

  • Kim, So-Hee;Chae, Keum-Seok
    • Journal of the Korea Fashion and Costume Design Association
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    • v.17 no.2
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    • pp.63-78
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    • 2015
  • The purpose of this study is to compare the style of clothing by type of the Goguryeo and Xianbei Tribe based on the examination of the literature centered on the historical relationship between Goguryeo and Xianbei Tribe. The research results are as follows. First, it was found that both the apparels of Goguryeo and Xianbei Tribe had hemp cloth with the V-neckline with the blocked front part and hemp cloth with the open front that is worn by overlapping the straight collars of the upper garment. Both men and women wore the garment of the straight line collar that is worn by folding towards the left or right, or upper garment of the round shaped collar. Women wore an upper garment with short sleeves on top of the upper garment of Korean traditional clothes while men wore pants for the lower garment, and women wore skirt and apron with triangular cloth decoration on top of the skirt. Second, Goguryeo Anak Tomb No. 3 mural painting(year 357) shows that apparel worn by the lady who is the wife of the owner of the tomb is similar to the apparel worn by the lady in the lacquer painting for folding screen of the Sima Jinlong Tomb ancient painting on the woman of chaste reputation in terms of the form and structure.

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A study on the Kuei of the Jade Tablet, Hole of the Ivory Tablet, Ancient Korea and China, Japan (한.중.일 3국의 圭.笏에 관한 연구)

  • 임명미
    • Journal of the Korean Society of Costume
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    • v.51 no.2
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    • pp.5-25
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    • 2001
  • Jade, which is a kind of stone, with its transparent body, lustrous and bright character, But jade is not the only fair stone. There are three kinds of jade objects 1) tallies used in the court. 2) ceremonial jades. 3) ordinary jade for decoration, for inlaid work and for burial. Among the ceremonial jade, the most important were the "liu jui" and "liu ch′i." The former was supposed to be held by people in the court as symbols of their authority : 1) "then-kuei(鎭圭)" for the emperor. 2) "hang-kuei(恒圭)" for a duke, 3) "hsin-kuei(信圭)" a marquis. 4) "kung-kuei(躬圭)" for an earl, these "kuei" were alike in shape, but differed in size. 4) "ku-pi(穀璧)" for a viscount. 5) "p′u-pi(蒲璧)" for a baron, "pi(璧)" differed in decoration but were alike in shape. "Liu ch′i(六器)" were ceremonial objects used by the emperor in worshipping Heaven, Earth, and the Four Directions : "ts′ang-pi(倉璧)," greenish jade disk, used in worthipping Heaven "huang-tsung(黃琮)," yellow jade cylinder, used in worshipping Earth ; "cuing-kuei,(靑圭)" blue jade tablet. used in worshipping the East : "chih-chang(赤璋)," red jade tablet, used in worshipping the South : "hsuan-huang(玄璜)," black crescent, used in worshipping the North. Five kinds of tallies were "chen-kuei(鎭圭)," "yenkuei(琰圭)," "yuan-kuei(玩圭)," "ku-kuei(穀圭)." They were used to console people during disaster, to subjugate an official who had committed a crime, to reward a prize to an official for his merit or good conduct, to arbitrate disputes between high officials, to marry princess. and to dispatch troops. Since the west wei(西魏), Kuei and Hole were made of Ivory, wood and bamboo, who had ivory for fifth grade and wood and bamboo for under sixth grade. After Eastern Chou, all officials beginning to had kuei hole. symbol of Authority. and his wives. After Dang dynasty, Japan is the same. In korea. After king Bupheung in ancient and South(unification) Silla, North Kingdom Bohai, Koryo, and Chosen dynasty had ceremonial jade, Kuei and Hole.

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MC3T3-E1 osteoblast adhesion to laser induced hydroxyapatite coating on Ti alloy

  • Huang, Lu;Goddard, Samuel C.;Soundarapandian, Santhanakrishnan;Cao, Yu;Dahotre, Narendra B.;He, Wei
    • Biomaterials and Biomechanics in Bioengineering
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    • v.1 no.2
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    • pp.81-93
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    • 2014
  • An in vitro cell study evaluating cell adhesion to hydroxyapatite (HA) coated prosthetic Ti-6Al-4V alloy via laser treatment is presented in comparison with uncoated alloy. Based on our previous in vitro biocompatibility study, which demonstrated higher cell attachment and proliferation with MC3T3-E1 preosteoblast cells, the present investigation aims to reveal the effect of laser coating Ti alloy with HA on the adhesion strength of bone-forming cells against centrifugal forces. Remaining cells on different substrates after centrifugation were visualized using fluorescent staining. Semi-quantifications on the numbers of cells were conducted based on fluorescent images, which demonstrated higher numbers of cells retained on HA laser treated substrates post centrifugation. The results indicate potential increase in the normalized maximum force required to displace cells from HA coated surfaces versus uncoated control surface. The possible mechanisms that govern the enhancing effect were discussed, including surface roughness, chemistry, wettability, and protein adsorption. The improvement in cell adhesion through laser treatment with a biomimetic coating could be useful in reducing tissue damage at the prosthetic to bone junction and minimizing the loosening of prosthetics over time.

Expression of Prolactin Receptor mRNA after Melatonin Manipulated in Cashmere Goats Skin during Cashmere Growth

  • Yue, Chunwang;Du, Lixin;Zhang, Wei;Zhu, Xiaoping;Kong, Xianghao;Jia, Zhihai
    • Asian-Australasian Journal of Animal Sciences
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    • v.23 no.10
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    • pp.1291-1298
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    • 2010
  • The aim of this research was to investigate the dynamic changes of the level of total prolactin receptor (PRLR) mRNA and the short form prolactin receptor (S-PRLR) mRNA in skin of cashmere goats from the initiation of cashmere fibre growth to active growth. Eighteen half-sib wethers were allocated randomly to two groups. Melatonin implants were used in order to initiate growth of cashmere fibre before the normal time and reduce blood plasma prolactin (PRL) concentration. Real-time reverse transcription quantitative polymerase chain reaction (real-time PCR) was used to determine PRLR mRNA expression levels of skin from June to November. The results showed that, in Chinese Inner Mongolia cashmere goats, there were seasonal variations in expression of total PRLR mRNA in skin with levels decreasing from June to October. Synchronously, the cashmere fibre growth rate gradually increased during this period, but the expression levels of S-PRLR mRNA did not decrease along with seasonal variation from initiation to active growth of cashmere fibre. These results suggest that expression levels of S- PRLR mRNA might be involved in the process of cashmere growth. It was also possible that the change of alternative splicing of PRLR occurred in the skin of cashmere goats from proanagen to anagen.

Preliminary Simulation Study on 1 MWe STP System in China (중국 1 MWe급 태양열발전시스템에 대한 기초 운전해석)

  • Yao, Zhihao;Wang, Zhifeng;Kang, Yong-Heack;Kim, Jong-Kyu;Wei, Xiudong
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.06a
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    • pp.698-701
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    • 2007
  • DAHAN, the first 1 MWe Solar Power Tower system locates north to Beijing where nearby The Great Wall is now under construction with cooperation between China and Korea. Results in predicting the preliminary performance of this central receiver system are presented in this paper. Operating cycles under some typical weather condition days are simulated and commented. These results can be used to assess the impact of alternative plant designs or operating strategies on annual energy production, with the final objective being to optimize the design of central receiver power plants. Two subsystems are considered in the system simulation: the solar field and the power block. Mathematic models are used to represent physical phenomena and relationships so that the characteristics of physical processes involving these phenomena can be predicted. Decisions regarding the best position for locating heliostats relative to the receiver and how high to place the receiver above the field constitute a multifaceted problem. Four different kinds of field layout are designed and analyzed by the use of ray tracing and mathematical simulation techniques to determine the overall optical performance ${\eta}_{field}$ and the spillage ${\eta}_{spill}$.The power block including a Rankine cycle is analyzed by conventional energy balance methods.

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Multiscale self-coordination of bidimensional empirical mode decomposition in image fusion

  • An, Feng-Ping;Zhou, Xian-Wei;Lin, Da-Chao
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.9 no.4
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    • pp.1441-1456
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    • 2015
  • The bidimensional empirical mode decomposition (BEMD) algorithm with high adaptability is more suitable to process multiple image fusion than traditional image fusion. However, the advantages of this algorithm are limited by the end effects problem, multiscale integration problem and number difference of intrinsic mode functions in multiple images decomposition. This study proposes the multiscale self-coordination BEMD algorithm to solve this problem. This algorithm outside extending the feather information with the support vector machine which has a high degree of generalization, then it also overcomes the BEMD end effects problem with conventional mirror extension methods of data processing,. The coordination of the extreme value point of the source image helps solve the problem of multiscale information fusion. Results show that the proposed method is better than the wavelet and NSCT method in retaining the characteristics of the source image information and the details of the mutation information inherited from the source image and in significantly improving the signal-to-noise ratio.

Promoted Growth of Maize by the Phosphate Solubilizing Bacteria Isolated from North-east China

  • Wu, Hai-Yan;Wang, Li-Chun;Gao, Xing-Ai;Jin, Rong-De;Fan, Zuo-Wei;Kim, Kil-Yong;Zhao, Lan-Po
    • Korean Journal of Soil Science and Fertilizer
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    • v.44 no.1
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    • pp.112-117
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    • 2011
  • A strain of phosphate solubilizing bacterium was isolated from rhizosphere and identified as Burkholderia sp. by 16S-rRNA gene sequence analyses. The bacterium was found to release gluconic acid and the solubilization of hydroxyapatite in the liquid medium by a significant drop in pH to 3.7 from an initial pH 7.0. The soluble-P concentration continuously increased during the incubation periods and the total amount of soluble P released in culture filtrate was detected at 990 mg $L^{-1}$ after 10 days of inoculation. Most promoted maize growth was found in the standard NPK (240-120-120 kg $ha^{-1}$) soil inoculation with Burkholderia sp. (Twenty milliliters/plant, 106 CFU) and also in the absence of Burkholderia sp. inoculation, the soil amended with only 2/3 levels of P gave significant higher plant yield compared to 1/3 levels of P or without P supplementation.

A Dynamic Queue Management for Network Coding in Mobile Ad-hoc Network

  • Kim, Byun-Gon;Kim, Kwan-Woong;Huang, Wei;Yu, C.;Kim, Yong K.
    • International journal of advanced smart convergence
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    • v.2 no.1
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    • pp.6-11
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    • 2013
  • Network Coding (NC) is a new paradigm for network communication. In network coding, intermediate nodes create new packets by algebraically combining ingress packets and send it to its neighbor node by broadcast manner. NC has rapidly emerged as a major research area in information theory due to its wide applicability to communication through real networks. Network coding is expected to improve throughput and channel efficiency in the wireless multi-hop network. Many researches have been carried out to employ network coding to wireless ad-hoc network. In this paper, we proposed a dynamic queue management to improve coding opportunistic to enhance efficiency of NC. In our design, intermediate nodes are buffering incoming packets to encode queue. We expect that the proposed algorithm shall improve encoding rate of network coded packet and also reduce end to end latency. From the simulation, the proposed algorithm achieved better performance in terms of coding gain and packet delivery rate than static queue management scheme.

Common Genetic Variations in the MUC5AC Gene are Not Related to Helicobacter pylori Serologic Status

  • Zhou, Cheng-Jiang;Zhang, Liu-Wei;Gao, Fang;Zhang, Bin;Wang, Ying;Chen, Da-Fang;Jia, Yan-Bin
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.24
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    • pp.10719-10722
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    • 2015
  • Several lines of evidence suggest that MUC5AC genetic polymorphisms might confer susceptibility to H. pylori infection and therefore gastric cancer risk. We here assessed the association of common polymorphisms in the MUC5AC gene with H. pylori seroprevalence using an LD-based tagSNP approach in a north-western Chinese Han population. A total of 12 tagSNPs were successfully genotyped among 281 unrelated ethnic Han Chinese who had no cancer history, and no identifiable gastric disease or genetic disease. No significant association between any alleles, genotypes or haplotypes and H. pylori seroprevalence was observed. Our results suggest that common genetic variations in MUC5AC gene might not make a major contribution to the risk of H. pylori infection.