Design and Application of Interfaces on SOC

片上系统（SOC）通过集成了各种具有某些特定功能的IP核，在单块芯片上实现了一个具有完整功能的系统。但SOC并不是一个封闭的系统，它需要和外部进行通信。因此，SOC芯片上往往根据应用的需要集成了各种各样的接口电路。 本文根据实际项目的需要，为MP3音频SOC设计USB主机控制器和SD卡接口控制器，用以对外部的U盘和SD卡进行操作，并设计了DMA控制器用以实现大量数据的片上交换，然后集成各功能模块及开发相应驱动软件设计了一款MP3音频SOC芯片，研究内容涉及了片上数据传输，软硬件协同验证和SOC单片集成等技术。本论文工作的主要成果体现在以下几个方面： （1）基于Crossbar片上数据交换结...System on a chip (SOC) achieves a fully functional system on a single chip by integrating a variety of IP cores of certain features. But SOC is not a closed system. It needs to communicate with external devices. So a variety of interface circuits will be integrated on SOC depending on the application. In this paper, a USB host controller and a SD card interface controller are designed accordi...学位：工学硕士院系专业：物理与机电工程学院_微电子学与固体电子学学号：1982010115283

Prediction of Mortality and Years of Life Lost due to Liver Cancer in Residents in Xiamen

目的探讨厦门市居民肝癌死亡的变化趋势,为厦门市肝癌综合防治工作提供依据。方法收集整理2004-2013年厦门市居民肝癌死亡资料计算死亡率、平均减寿年数(AYLL)、死亡率年均变化百分比等评价指标,用GM(1,1)模型对死亡率和AYLL进行预测。结果 2004-2013年,厦门市居民因肝癌死亡率31.95/10万,年均下降2.0%,男性死亡率是女性的3.81倍;AYLL为16.74年,存在下降趋势。GM(1,1)模型预测值与实际值平均相对误差2.27%~3.71%,预测2014-2018年肝癌死亡率和AYLL值均有所下降。结论 GM(1,1)模型可用于厦门市居民肝癌死亡率和减寿趋势预测,未来肝癌死亡虽有下降趋势,但仍呈高位态势,仍要重视肝癌的预防控制工作。Objective To explore the trend of mortality and years of life lost due to liver cancer in residents in Xiamen,so as to provide the basis data on preventing liver cancer in Xiamen. Methods The data of residents in Xiamen dying of liver cancer from 2004 to 2013 was collected and cleared up to calculate the evaluation indexes including the mortality rate, the average potential life lost( AYLL), and the average percentage change( APC) of mortality rate. GM( 1,1) model was used to predict the future mortality and AYLL. Results From 2004 to 2013, the average mortality rate of liver cancer in residents in Xiamen was 31. 95 per 100000 persons.,of which in male was 3. 81 times as that in female. The APC was 2. 0%. The AYLL,which was16. 74 years,had decline trend from 2004 to 2013. The mean absolute percentage errors between observed values and fitted values were 2. 27%- 3. 71%. The mortality rate and AYLL of liver cancer in residents in Xiamen would decrease from 2014 to 2018.Conclusion GM( 1,1) model could be used to forecast the trend of mortality and years of life lost due to liver cancer in residents in Xiamen. Though there is descending trend of mortality and years of life lost in future, the value of mortality is still high.So we still have to pay more attentions on preventing and curing of liver cancer

Investigation on the iodine status among the population in rural and urban areas of Xiamen in 2013

目的了解碘盐新标准实施后农村和城市人群的碘营养现况,为有效落实科学补碘防控策略提供依据。方法在农村和城市调查点各抽取1个镇的1个村,在每个村采集自来水厂出厂水和末梢水各2份;抽取30户以上居民,采集各户家庭食用盐,用3日称量法测算各户居民人均食盐摄入量;抽取18-45岁成人50名以上,采集尿样。在抽中的镇随机选择8-10岁儿童(男女各半)、孕妇和哺乳期妇女各50名以上,采集尿样。测定盐碘、尿碘和水碘含量。结果农村和城市自来水末梢水水碘含量均值分别为4.5μg/L和6.0μg/L;居民人均每日食用盐摄入量中位数分别为7.0和5.6g;8~10岁儿童尿碘中位数分别为152.0和181.2μg/L;哺乳妇尿碘中位数分别为108.3和107.7μg/L;18-45岁成人尿碘中位数分别为121.1和147.4μg/L;孕妇尿碘中位数分别为116.0和112.2μg/L,尿碘含量低于150μg/L的比例分别达67.9%和64%;除农村人均每日食用盐摄入量高于城市,农村18-45岁成人尿碘水平低于城市外,其他指标农村和城市间差异无显著性。结论厦门市仍是缺碘地区,在现有碘盐标准下,8-10岁儿童、18-45岁成人、哺乳期妇女的碘营养处于适宜水平,但孕妇的碘营养不足,要开展针对孕期人群的碘营养监测和指导,杜绝碘缺乏所造成的危害。Objective To gain knowledge of the iodine status among the population in rural and urban areas after the implement of new standard for edible salt and to provide scientific evidence for the initiative of the iodine supplement strategy. Method 1 village / community was selected randomly from rural and urban area as research site respectively. 2 samples of treated water and tap water were collected respectively in both sites, 30 + houses were enrolled randomly and edible salt samples were collected. 3days weighed record was employed to estimate average salt daily intake. Urine sample was collected from 50 + adults aged from 18 to 45. Identical sample was also collected from 50 + children aged from 8 to 10( same amount of subjects in both genders),pregnant women, and lactating women respectively. Iodine level of water, salt, and urine was determined by laboratory assay.Results The iodine concentration of tap water in rural and urban areas was 4. 5 μg / L and 6. 0 μg / L,respectively. The median of average iodine intake in rural and urban areas was 7. 0 g and 5. 6 g, respectively. The median in urine iodine was 152. 0 μg / L and 181. 2 μg / L,respectively. This measurement in lactating women was 108. 3 μg / L and 107. 7 μg / L,respectively. And it was121. 1 μg / L and 147. 4 μg / L in adults aged 18 to 45, respectively. As for the pregnant women, the iodine level reached 116. 0μg /L and 112. 2 μg /L,respectively. The proportion of subjects has urine iodine level less than 150 μg /L reached 67. 9 % and 64 %, respectively. The average salt intake in rural area was higher than urban significantly, and the urine iodine level in adults aged 18 to 45 from rural area was significantly lower than urban. No significance was found in other comparison. Conclusion Through our investigation,Xiamen is still an iodine deficiency area. Under the implement of new edible salt standard, the iodine status in children aged 8 to 10, adults aged 18 to 45 and lactating women was adequate, however, we found that pregnant women enrolled in our study have iodine deficiency in some degrees. Therefore the iodine surveillance and dietary guidance should be performed among pregnant women to eliminate the harm caused by iodine deficiency

基于Crossbar的多通道DMA控制器设计与实现

本文给出了一种基于Crossbar的多通道DMA控制器的设计方案,它能有效地提高DMA数据传输的效率和减少系统CPU的中断次数,保证多核SOC系统的任务执行效率及传输接口的通信实时性。经FPGA验证表明,所设计的多通道DMA控制器比传统的DMA有更好的效能及性价比

Stem Culture and Rapid Propagation of Melastoma malabathricum Linn.

广州市科技计划项目(2002Z3-E0291

Seeds Culture of Anoectochilus roxburghii

金线莲种子在培养基1/2MS+6-BA1.0 mg/L+NAA1.0 mg/L上萌发后形成原球茎,原球茎可以直接发育成幼苗,也可以由原球茎产生愈伤组织,再由愈伤组织发育成类原球茎而分化成幼苗。通过类原球茎可以实现大量增殖,在MS+6-BA1.0 mg/L+NAA0.1 mg/L上培养60 d的增殖倍数达到6.7倍。在培养基MS+IBA0.3mg/L上,金线莲的生根率可达到96.0%。Seeds of Anoectochilus roxburghii would germinate and develop to protocorms on the medium of 1/2MS+6-BA1.0 mg/L+NAA1.0 mg/L.The protocorms may develop to seedlings immediately or induce callous and then induce protocorm-liked-bodies which would develop to seedlings also.Anoectochilus roxburghii be rapidly propagated by the later method and 6.7 folds of propagation would get on the medium of MS+6-BA1.0 mg/L +NAA0.1 mg/L after subcultured 60 days.Seedling′s rooting rate was 96.0% on the medium of MS+IBA0.3 mg/L.广东省科技计划项目(2004B60302006);; 广州市科技计划项目(2004Z3-E0361);; 广州市建委项目[(2003)06

不同HBsAg疫苗联合免疫后诱导小鼠细胞和体液免疫应答的研究

目的:了解HBsAg的蛋白疫苗(P)、痘苗病毒疫苗(V)、DNA疫苗(D)联合免疫小鼠诱导的特异性体液和细胞免疫应答。方法:以P、V或D疫苗中的一种疫苗初次免疫BALB/c小鼠后,于第2、5、8、11周再用另一种疫苗加强,共产生9种免疫组合:即PP、PV、PD、VP、VV、VD、DP、DV及DD。于初免后第2、5、8、11周采血检测血清中抗HBsAgIgG的总滴度及其IgG1和IgG2a亚类,并于每次加强免疫后第7天,检测小鼠脾脏的CTL对P815S细胞的特异性杀伤率。结果:在P、V、D3种疫苗中,V疫苗诱导产生抗HBsAg抗体的速度最快,P疫苗诱导的体液免疫回忆反应最强,D疫苗诱导产生的抗体最弱。除PP疫苗组合诱导的抗体明显倾向于IgG1外,其他均无明显的倾向性。各种免疫组合中,VD和DV疫苗组诱导的CTL应答最强,对P815S的特异性杀伤率分别为71%和64%。结论:在各种联合免疫组合中,PV、PD、VP和VD疫苗组的抗体应答较好;而DV和VD疫苗组诱导的CTL杀伤效应最强

沿海产盐区与非产盐区妊娠期妇女碘营养状况及甲状腺功能水平分析

目的了解福建沿海产盐区与非产盐区妊娠期妇女碘营养状况及其甲状腺功能水平,为防治碘缺乏病提供科学依据。方法选择产盐区翔安区和非产盐区集美区为调查点,每个点随机抽取60名以上妊娠期妇女作为调查对象,采集孕妇的家中盐样、尿样及血样,分别测定盐碘、尿碘及血清甲状腺激素。结果产盐区与非产盐区孕妇合格碘盐食用率分别为81.69%和100.00%;产盐区与非产盐区孕妇尿碘的中位数分别为120.55μg/L和153.35μg/L,尿碘孕中期>孕晚期;产盐区与非产盐区孕妇的甲状腺过氧化物酶抗体(thyroid peroxidase antibody,TPOAb),抗甲状腺球蛋白抗体(antithyroid glubulin antibody,TgAb),总三碘甲状腺原氨酸(total-triiodothyronine,TT3),总甲状腺素(total thyroxine,TT4),游离三碘甲状腺原氨酸(free triiodothyronine,FT3),游离甲状腺素(free thyroxine,FT4),促甲状腺激素(thyroid stimulating hormone,TSH),甲状腺球蛋白(tryroglobulin,Tg)中位数均在正常范围,产盐区与非产盐区孕妇的FT3、FT4、TSH之间差异均有统计学意义,产盐区孕妇的FT3、FT4均低于非产盐区,而产盐区孕妇的TSH则高于非产盐区。结论孕妇是易缺碘人群,产盐区孕妇相对非产盐区碘缺乏更为严重。应对孕妇开展常规碘营养和甲状腺功能监测,进一步做好碘营养知识的宣传教育工作,控制碘缺乏病的发生

沿海产盐区与非产盐区8～10岁儿童碘营养与智力水平分析

目的了解和比较沿海产盐区和非产盐区8~10岁儿童碘营养状况与智力水平,为采取针对性防治措施提供依据。方法选择产盐区翔安区和非产盐区集美区的小学为调查点,8~10岁儿童为调查对象,调查其家中碘盐食用情况、尿碘含量、甲状腺肿大情况和智商水平。结果产盐区和非产盐区儿童合格碘盐食用率分别为81.5%和98.6%;甲状腺肿大率分别为3.0%和0.7%,尿碘中位数分别为202.8μg/L和238.4μg/L,<50μg/L的比例分别为3.5%和1.0%。产盐区8~10岁儿童智商均明显低于非产盐区儿童;产盐区8岁儿童智商明显高于9岁和10岁儿童;非产盐区8岁儿童智商明显高于9岁和10岁儿童,9岁儿童智商明显高于10岁儿童。结论补碘能提高儿童智商,降低智力损害。要坚持食用碘盐,开展对孕妇、哺乳妇的碘营养监测

沿海产盐区与非产盐区18～45岁人群碘营养状况及甲状腺功能水平研究

目的掌握厦门市沿海产盐区与非产盐区居民盐碘、18～45岁人群碘营养和甲状腺功能水平状况,为采取针对性的防治措施提供依据。方法选择沿海产盐区翔安区和非产盐区集美区为调查点,调查居民合格碘盐食用率、18～45岁育龄期妇女和男性尿碘水平、甲状腺激素水平和海带、紫菜的摄入习惯。结果产盐区和非产盐区盐碘中位数均为27.21 mg/kg,合格碘盐食用率分别为95.33%和96.33%;18～45岁男性尿碘中位数分别为206.55μg/L和232.95μg/L,尿碘<100μg/L的比例分别为20.97%和10%;18～45岁育龄期妇女尿碘中位数分别为176.95μg/L和227.70μg/L,尿碘<100μg/L的比例分别为21.67%和25%;产盐区和非产盐区18～45岁男性和育龄期妇女的甲状腺激素TSH、Tg、FT3、FT4、TPOAb、TT3、TT4中位数均在正常值范围内;产盐区18～45岁男性的甲状腺功能亢进阳性率为3.4%、育龄期妇女的甲状腺功能减退和亚临床甲状腺减退症的阳性率均为1.67%,而非产盐区均为0。产盐区和非产盐区18～45岁男性和育龄期妇女中均有一定比例易患甲状腺免疫性疾病的人群。每月食用海带、紫菜的次数≥4次、1～3次和<1次的人尿碘组间比较无统计学差异。结论产盐区和非产盐区18～45岁男性和育龄期妇女碘营养总体处于适宜状态,应坚持食盐加碘措施,对育龄期妇女在婚前体检时开展常规碘营养水平和甲状腺功能检测