完全不确定Hamburger矩阵矩量问题的有限阶解

该文描述带有矩量序列{v_m}_0~∞■C^(q×q)的完全不确定Hamburger矩阵矩量问题:v_m=integral from n=-∞to∞x^m dρ(x),m=0,1,…的有限阶解,即该问题的那些解ρ,使得C^(q×q)-值多项式的线性空间P在对应的空间L^2(R,dρ/E(x))内稠密,这里E(x)为在实轴R上取正值的某个数值多项式.作为预备知识,作者考虑所谓广义Akhiezer插值的矩阵变种与它的相关矩阵矩量问题之间的一种关系.

Prevalence of Methicillin-Resistant <i>Staphylococcus aureus</i>in Raw Hamburgers and Ready-to-Eat Sandwiches Commercialized in Supermarkets and Fast Food Outlets in Brazil

Although well known, Staphylococcus aureus is a bacterium that remains widely studied because of its high pathogenic potential and its ability to develop resistance to antibiotics routinely used in clinical practice. The present study investigated the occurrence of methicillin-resistant Staphylococcus aureus (MRSA) in hamburgers and sandwiches sold in supermarkets and fast food outlets in Salvador, BA, Brazil. Fifty samples of frozen raw hamburgers (25: beef and 25: chicken) and 50 samples of ready-to-eat sandwiches (25: beef and 25: chicken) were collected and investigated for the presence of MRSA. MRSA was present in 32% of the hamburgers and 8% of the sandwiches. The frequency of MRSA was higher in the samples containing chicken meat. However, the statistical analysis showed no association between MRSA presence and the type of meat investigated (P > 0.05). The high prevalence of MRSA in hamburgers and the presence of the microorganism in ready-to-eat sandwiches are worrying and indicate the need for better control during food preparation to prevent the spread of bacteria.

小议bread,sandwich和hamburger的数

一、bread意为“面包”，是不可数名词，在表迭其数量时。要借助于量词。例如：

W.Hamburger公司计划关闭其奥地利Frohnleiten纸板厂

W．Hamburger GmbH公司近日表示，该公司计划于2013年5月关闭其位于奥地利Styria的Frohnleiten纸板厂。该厂有两台纸机，生产挂面纸板和瓦楞原纸，分别为年产9万t的1#机和年产8万t的2^#机。共有100名员工。

Hamburger公司在土耳其新建纸板厂

奥地利Prinzhorn集团旗下Hamburger土耳其分公司将在土耳其伊斯坦布尔投建第三家造纸厂。新纸机将采用最先进的技术生产幅宽7．80m的纸板，预计产能48万t／a，主要是挂面纸板和瓦楞原纸。该项目投资3亿欧元，计划于2020年完成。

Hamburger Moment Sequences in Combinatorics

We show that many well-known counting coefficients in combinatorics are Hamburger moment sequences in certain unified approaches and that Hamburger moment sequences are infinitely convex. We introduce the concept of the q-Hamburger moment sequence of polynomials and present some examples of such sequences of polynomials. We also suggest some problems and conjectures.

Akhiezer型插值问题的矩阵变型(英文)

研究了在Cp× p 值Nevanlinna函数类Np 中Akhiezer型插值问题的 2种矩阵变型 .

插值问题与基本矩阵不等式变换(Ⅰ)

利用基本矩阵不等式变换研究 Nevanlinna函数类中带多重插值点的 Nevanlinna- Pick问题与它的相关 Hamburger矩量问题 ,重新证明了这 2类插值问题的通解可以表示成“商余”

可非负扩张块Hankel矩阵的因子分解

利用作者和陈公宁教授已经获得的结果 ,证明每个可非负扩张的块Hankel矩阵Hn ,p=(Si+j) ni,j=0 ,Sk=S k ∈Cp×p总可以分解成为一个广义的Vandermonde矩阵Vg,一个对角矩阵D以及Vg 的共轭转置V g 的乘积形式 ,这里去掉了Tismenetsky相应的分解形式中对Hn ,p非奇异性的限制 .

Rutting resistance of asphalt mixtures in the middle course

In order to improve the rutting resistance of asphalt mixtures in the middle course to reduce the rutting of asphalt pavement, the influence of different types of gradation with their own optimal asphaltaggregate ratios is analyzed. Some investigations are made out on the mixture in the middle course through the modified wheel tracking test in air bath and the Hamburg wheel tracking test （HWTT） in water bath, and the results of which are compared with the corresponding research in Germany. Results show that the Sup20 and the modified AC-20I have better performance than that of AC-20I under the same test conditions. In addition, the high-quality bitumen and hard aggregate can improve the rutting performance of the mixture in water-submerged conditions. The selection of modified asphalt, hard aggregate and a reasonable gradation are essential to the improvement of the rutting resistance of the mixtures used in the middle course.

Relationship between repeated triaxial test and Hamburg wheel tracking test on asphalt mixtures

Both the repeated triaxial test （RTT） and the Hamburg wheel tracking test （HWTT） are adopted to evaluate the high temperature performance of the stone mastic asphalt （SMA） and the mastic asphalt （MA）. The correlation of the permanent deformations of the MA and the correlation of the deformation developments of the SMA between the two tests are analyzed, respectively. Results show that both the two tests can effectively identify the high temperature performance of mixtures, and the correlation between the final results of the two tests as well as that between the deformation developments of the two tests are excellent with R20.9. In order to further prove the correlation, viscoelastic parameters estimated from the RTT results is used to simulate the rutting development in the HWTT slabs by the finite element method （FEM）. Results indicate that the correlation between the two tests is significant with errors less than 10%. It is suitable to predict the rutting development with the viscoelastic parameters obtained from the RTT.

Study on High Temperature Behaviour of Gussasphalt

Rutting is one of the most damages in the asphalt surfaces for the orthotropic steel bridge decks. With Hamburg wheel tracking device, the suitable test conditions for Gussasphalt in Germany are pointed out, the high temperature behaviour of Gussasphalt with different binders are tested and compared. The polymer modified binder has higher resistance stability to rutting. The retained time and mixed frequency have obvious effects on Gussasphalt behaviour during Gussasphalt retained period.

Study on Differences in Procyanidine Content Between Muscat Hamburg Grape From Different Producing Areas

[Objectives] This study was conducted to analyze the differences in procyanidine content in grapes caused by different producing areas. [Methods]With Muscat Hamburg grape from different producing areas as an experimental material,procyanidine content was determined by n-butanol-hydrochloric acid colorimetry. [Results] The procyanidins contents in different parts of the same variety ranked as grape seed > grape skin > grape flesh. The procyanidins contents in grapes from different producing areas were in order of Changli County,Hebei Province > Dazeshan Town,Shandong Province > Hangu District,Tianjin City.[Conclusions]The procyanidins contents in Muscat Hamburg grapes from different producing areas differ to a certain degree.

A Real-Time Automatic Translation of Text to Sign Language

Communication is a basic need of every human being;by this,they can learn,express their feelings and exchange their ideas,but deaf people cannot listen and speak.For communication,they use various hands gestures,also known as Sign Language(SL),which they learn from special schools.As normal people have not taken SL classes;therefore,they are unable to perform signs of daily routine sentences(e.g.,what are the specifications of this mobile phone?).A technological solution can facilitate in overcoming this communication gap by which normal people can communicate with deaf people.This paper presents an architecture for an application named Sign4PSL that translates the sentences to Pakistan Sign Language(PSL)for deaf people with visual representation using virtual signing character.This research aims to develop a generic independent application that is lightweight and reusable on any platform,including web and mobile,with an ability to perform offline text translation.The Sign4PSL relies on a knowledge base that stores both corpus of PSL Words and their coded form in the notation system.Sign4PSL takes English language text as an input,performs the translation to PSL through sign language notation and displays gestures to the user using virtual character.The system is tested on deaf students at a special school.The results have shown that the students were able to understand the story presented to them appropriately.

Attitudes of young scholars in Qingdao and Hamburg about climate changeand climate policy The role of culture for the explanation of differences

This article analyses differences in the attitudes related to climate change of young scholars in environmental science in Qingdao (China) and Hamburg (Germany). The main aim of the article is to evaluate the role of cultural differences for their explanation. We expect no significant differences in the attitudes related to the findings of climate research, since scientific principles are the joint basis of the scientific discourse wordwide. However, we expect that there are differences in the attitudes of the young scholars about the role of science, of the state and of the civil society for dealing with the challenge of climate change. We suggest that these can be explained with substantial cultural differences between both societies, with regard to the role of the state and the civil society for the solution of environmental problems. In order to evaluate these hypotheses, we have conducted a comparative survey among environmental science students in Qingdao (China) and Hamburg (Germany) about their attitudes towards climate change. The findings support our main hypotheses. The young scholars in Qingdao and Hamburg differ substantially in their views of the role of science in society and policymaking. Plausibly, these differences may mainly be explained with differences in the cultural ideas about the role of the state and of the civil society for the solution of environmental problems. Gradual differences in the share of young scholars who think that climate change has anthropogenic causes, may be explained with differences in the curriculum but also by cultural habits. This article makes a new contribution to the scientific debate by exploring the role of cultural differences for differences in the attitudes of young scholars in environmental science in connection with climate change and climate policy in different cultural contexts.

Comparison of Soil Nutritional Status between Different Muscat Hamburg Vineyards in Coastal Areas of Tianjin

To study the effects of different soil conditions on winter nutrient storage of Muscat Hamburg branches,this study compared the soil texture,bulk density,total salt content and soil K,Ca,Na,Mg and total Fe contents of Muscat Hamburg vineyards in Ninghe District and Hangu District,Binhai New Area of Tianjin and analyzed the soluble sugar and soluble protein contents in one-year-old vine branches. The results showed that the soil p H was lower,and the soil K,Ca and total salt( 0. 445%) contents were higher in the vineyard of Ninghe District than those in the vineyard of Hangu District. There were no significant differences in the soil Mg,Fe and Na contents between the vineyards in the two regions. The soil of the vineyard in Ninghe District is medium loam,and that in Hangu District is heavy loam. In short,all the soil indicators of the vineyard in Ninghe District were better than those in Hangu District except the indicator of soil salt content. The soluble sugar and soluble protein contents of one-year-old vine branches differed significantly between the two regions.

阿迪达斯Hamburg再发绿色和蓝色款式

此前,有一些阿迪达斯Hamburg运动鞋的新发款式,但是已经沉寂了一段时间。本次,阿迪达斯Hamburg运动鞋为绿色和蓝色款式的回归举行了欢迎式。Hamburg作为都市经典系列诞生在上世纪八十年代。主要区别在于表面抛光,现在的款式是柔软的牛巴戈表面。可选择的颜色有绿色加黄色细部或者太阳蓝加红色细部。