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2010 4th International Conference on Bioinformatics and Biomedical Engineering最新文献

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Effect of Water-Accommodated Fractions of No.0 Diesel Oil on HOX1 Gene of Hemicentrotus pulcherrimus Sea Urchin 0号柴油调水馏分对海胆HOX1基因的影响
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5517379
M. Gang, Deqi Xiong, F. Lv
The paper aims at presenting the acute toxic effect of water-accommodated fractions(WAFS) of No.0 diesel oil on HOX1 gene of Hemicentrotus pulcherrimus by PCR-SSCP. The experiment was carried out with three concentrations(2mg/L, 5mg/L, 10mg/l). The results indicated that with the increase of exposure concentration and time, the probability of mutation increased. In the four primers, single base mutation took place in coding region of the 184 in primer N-2, with the conversion of T-C, where amino acid changed from serine into proline.
本文旨在介绍水溶组分的急性毒性作用(用PCR-SSCP方法研究了0号柴油对半腹虫HOX1基因的影响。实验以三种浓度(2mg/L、5mg/L、10mg/ L)进行。结果表明,随着暴露浓度和暴露时间的增加,突变概率增大。4条引物中,引物N-2中184号编码区发生单碱基突变,T-C发生转化,氨基酸由丝氨酸变为脯氨酸。
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引用次数: 0
Notice of RetractionValue Evaluation on Soil Conservation Function of Ecosystems in the Southern Mountain Region of Jinan 关于济南南部山区生态系统土壤保持功能价值评价的通知
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516399
Wang Lihong, Zhao Jianlan, Z. Hui
Based on 3S technology, using the methods of matter quantity and value quantity, the value of soil conservation function about the woodland, grassland, garden-plot and arable land in the southern mountain region of Jinan has been calculated on the basis of land use in 1996, 2001, 2005. The results express: the value of soil conservation function lost 9363.84 million yuan from 1996 to 2001, but it increased 6641.3 million yuan from 2001 to 2005, so the value of soil conservation function lost 2722.54 million yuan from 1996 to 2005.
以1996年、2001年、2005年济南市南部山区的土地利用状况为基础,基于3S技术,采用物质量和价值量的方法,对济南市南部山区林地、草地、园地和耕地的土壤保持功能价值进行了计算。结果表明:1996 - 2001年土壤保持功能价值损失936384万元,2001 - 2005年土壤保持功能价值增加664130万元,1996 - 2005年土壤保持功能价值损失272254万元。
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引用次数: 0
Development of an Optical Elastomicroscopy for Imaging Tissue Elasticity in High Resolution 高分辨率组织弹性成像光学弹性显微镜的研制
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516649
Minhua Lu, Qinghua Huang, Siping Chen, Yongping Zheng
Articular cartilage is a thin but crucial tissue layer which plays an important role in diarthrodial joints. During the last decade, the quantitative ultrasound technique, especially the high frequency ultrasound elasticity measurement technique, called as ultrasound elastomicroscopy (UEM), has been widely employed as a versatile modality to investigate the articular cartilage. Ultrasound elastomicroscopy can measure the deformation of different layers of articular cartilage under compression, but whether the propagation of ultrasound in tissues was changed or not with the imposed load is still unknown. In this study, we developed a new optical method to validate the accuracy and reliability of the ultrasound elastomicroscopy. Layered sponge phantoms were prepared for the experiments. During the compression, both the ultrasound and optical elastomicroscopy systems were employed to record the ultrasound signals and optical images from inside and the font of the phantoms. The deformations of the phantoms from different layers were tracked from both ultrasound and optical signals and were then compared. The preliminary results suggest that the measurements of the ultrasound elastomicroscopy system could be validated.
关节软骨是一种薄而重要的组织层,在腹泻关节中起着重要作用。在过去的十年中,定量超声技术,特别是高频超声弹性测量技术,被称为超声弹性显微镜(UEM),作为一种通用的方式被广泛应用于研究关节软骨。超声弹性显微镜可以测量不同层关节软骨在压迫下的变形情况,但超声在组织中的传播是否随着施加的载荷而改变尚不清楚。在这项研究中,我们开发了一种新的光学方法来验证超声弹性显微镜的准确性和可靠性。为实验准备了层状海绵模型。在压缩过程中,超声和光学弹性显微镜系统分别记录了来自幻体内部和前部的超声信号和光学图像。利用超声和光学信号对不同层的幻像的变形进行了跟踪,然后进行了比较。初步结果表明,超声弹性显微系统的测量结果是可以验证的。
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引用次数: 0
Anti-Aging Effects of Betacyanins from Portulaca oleracea L. 马齿苋β花青素的抗衰老作用。
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5515199
X. Gong, H. Chai
Betacyanins from Portulaca oleracea markedly reversed the D-gal induced learning and memory impairment by behavioral tests. The activities of SOD, CAT, GPx and GR in D- galactose -treated mice were enhanced. Significant negative correlations were found between the latency to find the platform of mice and the activities of SOD, CAT GR and GPx in mice brain. These results suggest the neuroprotective effect of betacyanins against D-gal induced neurotoxicity might be caused, at least in part, by the increase in the activities of antioxidant enzymes.
马齿苋β花青素通过行为测试可明显逆转D-gal诱导的学习和记忆障碍。D-半乳糖处理小鼠的SOD、CAT、GPx和GR活性均增强。小鼠寻找平台潜伏期与小鼠脑内SOD、CAT、GR、GPx活性呈显著负相关。这些结果表明,甜菜花青素对d -半乳糖诱导的神经毒性的神经保护作用可能至少部分是由抗氧化酶活性的增加引起的。
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引用次数: 0
Study on Active Carbon as Emergency Treatment of Songhua River Polluted by Nitrobenzene 活性炭应急治理松花江硝基苯污染的研究
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516263
Guangzhi Wang, Weiguang Li, Likun Huang, Yunan Gao
One of China largest river, Songhua River was polluted due to the explosion at a PetroChina factory in Jilin province in 2005. A full scale test was carried out to investigate the removal of nitrobenzene in the raw water from polluted Songhua River. The removal and control effects of nitrobenzene by using Powered Activated Carbon (PAC) absorption and Granular Activated Carbon (GAC) filtration as emergent treatments were studied. The results showed that PAC dosage could change from 30mg/L to 50mg/L according to the variation of nitrobenzene concentration in raw water. The dosing point of PAC was at the intake of water source and enough adsorption time could be guaranteed by means of the water transportation pipeline with distance of 11.9km. Full scale study results showed that the nitrobenzene concentration in intake of water plant was below 0.005mg/L after 5 hours adsorption by PAC in intake of water source which nitrobenzene concentration was between 0.03~0.35mg/L.With the GAC filtration as following treatment, nitrobenzene concentration was below 0.001mg/L in purified water. The combined emergent treatments could be used as a good method for Songhua River pollution
松花江是中国最大的河流之一,由于2005年中国石油在吉林省的一家工厂发生爆炸而受到污染。对松花江原水中硝基苯的去除进行了试验研究。研究了粉状活性炭(PAC)吸附和颗粒活性炭(GAC)过滤作为应急处理对硝基苯的去除和控制效果。结果表明,PAC用量可根据原水中硝基苯浓度的变化在30mg/L ~ 50mg/L之间变化。PAC的加药点在水源取水口,通过11.9km的输水管道可以保证足够的吸附时间。全尺寸研究结果表明,水厂取水口硝基苯浓度在0.03~0.35mg/L之间,水源取水口PAC吸附5小时后,取水口硝基苯浓度低于0.005mg/L。经GAC过滤后,纯化水中硝基苯浓度低于0.001mg/L。联合应急治理是治理松花江污染的一种较好的方法
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引用次数: 1
A Study of Coordination Mechanism of L-Hydroxyproline with Zinc(II) l -羟脯氨酸与锌的配位机理研究(ⅱ)
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5515455
Luyan Sang, R. Zuo, Xiaohua Zhou
The coordination compound of L-hydroxyproline(Hyp)-Zn(II) was synthesized by L-Hyp and zinc sulfate as raw materials in water medium, and the coordination mechanism was studyed. IR spectra of L-Hyp-Zn(II) proved the coordination effect was produced between L-Hyp and Zn(II); 1H-NMR indicated that combination's position of L-Hyp is α-carboxyl and α-hydroxyl; Atomic Force Microscopy (AFM) observation show that Zn(II) was surrounded by L-Hyp; The proportion of Hyp-Zn(II) coordination compound is 4∶1 which was determined by dialysis experiment. The molecular formula of the coordination compound is Zn(Hyp)4•H2O which was illustrated by above information.
以l -羟脯氨酸(Hyp)-锌(II)为原料,在水介质中合成了l -羟脯氨酸(Hyp)-锌(II)配位化合物,并对其配位机理进行了研究。L-Hyp-Zn(II)的红外光谱证明了L-Hyp与Zn(II)之间存在配位效应;1H-NMR表明L-Hyp的组合位置为α-羧基和α-羟基;原子力显微镜(AFM)观察表明,Zn(II)被L-Hyp包裹;通过透析实验确定Hyp-Zn(II)配位化合物的比例为4∶1。配位化合物的分子式为Zn(Hyp)4•H2O。
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引用次数: 0
A New Method to Judge the Accurate Position of the Pupil and Measure the Eye Rotational Angle 一种判断瞳孔准确位置和测量眼球旋转角度的新方法
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516366
Qing-wen Lv, Xiao-hong Mo, Yuan-yuan Gao
Traditional ENG technology got the recording from the eye movement displacement parameters through contactting with skin indirectly. Modern nystagmus gets the eye movement image through video camera, then calculates the eye movement displacement parameters. Difficulties of this technology in so big noise image environment, are how to judge the accurate location of the pupil and how to measure the eye rotational angle. In this paper,we use the template matching method to solve how to juge the accurate positioning pupil in case of large noise image environment, followed by the use of mutual information in image registration to solve the problem of measuration of the eye rotational angle.We test these two methods in the simulated test images ,and the results are content.
传统的ENG技术通过与皮肤间接接触,从眼动位移参数中获取记录。现代眼球震颤症通过摄像机获取眼球运动图像,然后计算眼球运动位移参数。在如此大噪声的图像环境下,如何判断瞳孔的准确位置和测量眼球旋转角度是该技术的难点。本文首先利用模板匹配的方法来解决在噪声较大的图像环境下如何判断瞳孔的准确定位问题,然后在图像配准中利用互信息来解决眼睛旋转角度的测量问题。在模拟测试图像中对这两种方法进行了测试,结果令人满意。
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引用次数: 0
Studies of Electro-Assisted Photodegradation of Methylene Blue in a Zero Gap Cell with Nafion Membrane 钠离子膜零间隙电池电辅助光降解亚甲基蓝的研究
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5514874
Jin-Yi Chen, Nian Li, Wanyi Li, Jing Li, Ying Duan
A Nafion membrane, used as a solid polymer electrolyte, was transplanted in a zero gap cell to investigate the feasibility of a hybrid technology of RuO2-TiO2 deposition combined with the application of an external electric field. The results showed that the zero gap cell technique with Nafion membrane had an apparent additive effect on the suppressing the recombination of the photo generated charge carriers and the photocatalytic oxidation of methylene blue. It could enhance the photocatalytic efficiency from 34.6% to 87.2% at 1~3 V and 100 mA/dm2 in 30min. This system may be used as new technique to decontaminate the drinking water under visible-light.
将Nafion膜作为固体聚合物电解质移植到零间隙电池中,研究了RuO2-TiO2沉积结合外加电场应用的混合技术的可行性。结果表明,零间隙电池技术对抑制光生成载流子的复合和抑制亚甲基蓝的光催化氧化具有明显的加性效应。在1~3 V、100 mA/dm2条件下,30min光催化效率由34.6%提高到87.2%。该系统可作为可见光下饮用水净化的新技术。
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引用次数: 0
An Improved Wiener Filtering Algorithm Based on Dynamic Noise Power Spectrum Estimation 基于动态噪声功率谱估计的改进维纳滤波算法
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5515206
Zhao Lv, Xiao-pei Wu, Mi Li
The problem of enhancing speech degraded by uncorrelated additive noise, when only the noisy speech is available, has been widely studied in the past and it is still an active field of research. Wiener filter, which is the most fundamental approach, has been delineated in different forms and adopted in diversified applications. An improved wiener filtering algorithm is proposed in this study, which utilizes band-partitioning spectral entropy to achieve accurate and robust speech endpoint detection and a dynamic noise power spectrum is estimated for updating a priori SNR. Experimental results reveal that the proposed algorithm can extract the embedded speech segments from utterances containing a variety of background noise successfully.
在只有带噪声语音的情况下,增强被不相关加性噪声退化的语音的问题在过去已经得到了广泛的研究,并且仍然是一个活跃的研究领域。维纳滤波作为一种最基本的方法,已经被描绘成不同的形式,并被广泛应用。本文提出了一种改进的维纳滤波算法,该算法利用带分割谱熵实现准确鲁棒的语音端点检测,并估计动态噪声功率谱来更新先验信噪比。实验结果表明,该算法能够成功地从含有多种背景噪声的话语中提取出嵌入的语音片段。
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引用次数: 0
Survival of Lactobacillus acidophilus Encapsulated as Freeze-Dried Culture under Extreme Conditions 极端条件下包封冻干培养的嗜酸乳杆菌的存活
Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5515772
Chang-lu Wang, Da-wei Liu, Yurong Wang, Feng-juan Li, Mian-hua Chen, Yaning Ma
Lactobacillus acidophilus La-1 was encapsulated as freeze-dried culture and its survival rates under various extreme conditions were investigated in this work. The survival rate of the freeze-dried bacteria remained at 87.1% with the viable counts of 2.26×108 cfu/mL, while keeping at pH 2.5 for 2 h, and the micronized culture was also tolerant to 6% NaCl. In 0.1% bile salt medium, the viable counts of Lactobacillus acidophilus La-1 reached to 3.39×109 cfu/mL, and it could also grow exposing to 0.5% bile salt medium. The viable counts were 9.33×107 and 1.03×108 cfu/mL, with survival rates of 44.64% and 49.28%, after keeping in simulated gastric or intestinal juice for 2 h, respectively. These results indicated that the encapsulation of Lactobacillus acidophilus La-1 as lyophilized culture could be quite effective for the bacteria to survive in extreme conditions, and the freeze-dried culture powder might be thus appropriate to be applied in foods or nutritious supplements.
对嗜酸乳杆菌La-1进行了冻干包膜培养,并对其在各种极端条件下的存活率进行了研究。在pH为2.5的条件下,冷冻干燥菌的存活率为87.1%,活菌数为2.26×108 cfu/mL,微粉化培养物对6% NaCl的耐受性也较好。在0.1%胆汁盐培养基中,嗜酸乳杆菌La-1的活菌数可达3.39×109 cfu/mL,在0.5%胆汁盐培养基中也能生长。在模拟胃液和模拟肠液中培养2 h后,活菌数分别为9.33×107和1.03×108 cfu/mL,存活率分别为44.64%和49.28%。上述结果表明,将嗜酸乳杆菌La-1包封为冻干培养物可有效地提高该菌在极端条件下的生存能力,冻干培养粉可应用于食品或营养补充剂中。
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引用次数: 0
期刊
2010 4th International Conference on Bioinformatics and Biomedical Engineering
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