采用X射线衍射技术对梁山慈竹微纤丝角(MFA)的变异特性进行了研究,并就微纤丝角对拉伸力学的影响进行了分析。结果表明,梁山慈竹微纤丝角随竹龄增加的变化较小,三年生竹的微纤丝角最大,为8.521°,二、三年生竹微纤丝角的平均值明显大于四、五年生竹,差异绝对值小于0.1°。竹秆基部、中部和上部微纤丝角的平均值分别为8.499°,8.497°和8.483°,变异系数在5%左右。微纤丝角从竹青到竹黄呈增大的趋势。方差分析表明,径向部位对微纤丝角有显著性影响,竹龄和纵向部位对微纤丝角无显著影响。顺纹拉伸强度和杨氏模量呈线性相关(r=0.57)。微纤丝角对力学性能有一定影响,拉伸强度和杨氏模量中分别有35%和43%的变异由微纤丝角引起。

X-ray diffraction technology was used to rapidly predict variation in microfibril angle (MFA)in Dendrocalamus fari-nosus.The results show that there is little variation in MFA with bamboo age from 2a to 5a,and MFA of 3a is at the maximum with the value of 8.521°.The average value of MFA of 2a or 3a is greater than 4a or 5a with absolute differences less than 0.1°. MFA of base,middle and upper position respectively are 8.499°,8.497°and 8.483°with coefficient of variation about 5%. There is an increasing tendency from the periphery to the inner of bamboo culms.Variance analysis indicates that MFA is highly sensitive to radial position,but insensitive to bamboo age and longitudinal position.The correlation coefficient of longitudinal strength and modulus of elasticity (MOE)is 0.57.MFA was responsible for 35%and 43%of the variation found in longitudinal strength and MOE respectively,which means MFA has a certain extent effect on mechanical properties.

介绍了一种新的社团挖掘算法MFA(Maximum weighted edge First Algorithm),该算法是一个优先考虑边权值进行社团划分的算法,同时也继承了通过优化Q值进行社团划分的算法的优点。通过实验证明,该算法完全正确的将加权的Zachary网络划分为个数分别为16和18的两个社团,要远优于其他大部分社团划分算法。

A new community structure identification algorithm MFA(Maximum weighted edge First Algorithm)was introduced, who was a priority for community division algorithm with edge weights,at the same time the advantages of optimized Q was in-herited.The experimental proved,the Zachary network of weighting was divided two community structure of 16 and 18 correct-ly,it`s better than most of the other algorithm.

将基于多个嵌入图组合形式的半监督判别分析（SDA）以及核 SDA （KSDA）应用于全监督的语音情感识别．在语音信号样本情感成分的预处理阶段，从样本语段中提取出多种特征及其统计参数，包括基音、过零率、能量、持续长度、共振峰和 MFCC （Mel 频率倒谱系数）．在将样本特征送入分类器之前的维数约简阶段，使用经过参数优化的 SDA 或 KSDA 进行降维．Berlin 语音情感数据库上的实验表明，在使用多类 SVM 分类器时的全监督语音情感识别中， SDA 优于其他一些先进的基于谱图学习的维数约简算法，如LDA， LPP， MFA 等，而 KSDA 通过核化的数据映射，能够取得比上述所有算法更好的识别效果．

Semi-supervised discriminant analysis SDA which uses a combination of multiple embedding graphs and kernel SDA KSDA are adopted in supervised speech emotion recognition.When the emotional factors of speech signal samples are preprocessed different categories of features including pitch zero-cross rate energy durance formant and Mel frequency cepstrum coefficient MFCC as well as their statistical parameters are extracted from the utterances of samples.In the dimensionality reduction stage before the feature vectors are sent into classifiers parameter-optimized SDA and KSDA are performed to reduce dimensionality.Experiments on the Berlin speech emotion database show that SDA for supervised speech emotion recognition outperforms some other state-of-the-art dimensionality reduction methods based on spectral graph learning such as linear discriminant analysis LDA locality preserving projections LPP marginal Fisher analysis MFA etc. when multi-class support vector machine SVM classifiers are

目的：评价高压氧治疗重度颅脑外伤后偏瘫的临床效果。方法选取本研收治的100例重度颅脑外伤后偏瘫患者，随机分为观察组和对照组，每组50例。对照组患者给予常规和康复治疗，观察组在对照组基础上行高压氧治疗，比较2组治疗效果。结果观察组治疗总有效率为92％，对照组为72％，2组总有效率比较差异具有统计学意义（ P＜0.05）；观察组患者接受治疗后上下肢MFA评分以及MBI评分均高于对照组，差异具有统计学意义（P＜0.05）。结论高压氧治疗能显著提高重度颅脑外伤后偏瘫患者的治疗效果和生活质量。

Objective To evaluate the effectiveness of hyperbaric oxygen on hemiplegia patients with severe craniocerebral trauma.Methods 100 cases of severe head injury patients with hemiplegia were selected as research objects ,and then randomly divided into observation group and control group ,each group of 50cases.The control group was given the routine and rehabilita-tion treatment.The observation group was given hyperbaric oxygen auxiliary therapy based on the control group.And then the curative effectiveness was compared between the two groups.Results The total effective rate of observation group was 92% , and that of the control group was 72% ,there was statistically significant difference between the two groups (P<0.05).The up-per and lower limb MFA score and MBI score of the patients in observation group were higher than those of patients in the con-trol group ,the difference was statistically significant (P<0.05).Conclusion Hyperbaric oxygen on hemiplegia patients with se-vere craniocer

以3株6年生浙江桂幼龄材为试材，研究了其生物量、材积、基本物理力学性能及生长轮的宽度、纤维长度、宽度、微纤丝角和结晶度的径向变异规律。结果表明，浙江桂幼龄材单株平均总生物量27.93奴，平均材积0.0124m3，生长轮平均宽度9.15mm（3.12—10.57mm），基本密度为0.414g／cm3，除髓心外其余各生长轮宽度和密度无明显差异，反映浙江桂生长较为稳定；顺纹抗压强度、抗弯强度和弹性模量等物理力学综合性能中上等；纤维长度为830.μm（581—1043μm），纤维宽度为23.6μm（21—24μm），结晶度为38.46％～58.43％，微纤丝角为13.6°一24.6°；纤维长度、宽度和结晶度自髓心向外逐渐增加，微纤丝角自髓心向外逐渐减小，结晶度与纤维长度、宽度间相关性极显著。

Three 6-year-old Cinnamomum chekiangense trees were selected to study the growth characteristics(biomass and wood volume)and radial variation of wood properties(basic physical and mechanical properties,annual ring width,fibre length(FL),fibre width(FW),microfibril angle(MFA)and crystallinity( CR)). The results showed that the average biomass,volume,annual ring width and basic density were 27. 93 kg,0. 0124 m3 ,9. 15 mm(3. 12 -10. 57 mm)and 0. 414 g/ cm3 ,respectively. No significant variation of ring width and basic density along the radial direction was presented except the pith. The FL,FW,CR and MFA were 830. 6 μm(581-1043μm),23. 6 μm(21-24μm),38. 46% -58. 43%and 13. 6° -24. 6°,respectively. The FL,FW and CR increased from pith to bark while MFA decreased in the same direction. The CR was significantly correlated with FL and FW.