一阳来复——日本学者井波律子的唐诗宋词品鉴

中国被誉为“诗的国度”,而唐诗宋词是中国传统文化的瑰宝,日本学者井波律子在对唐诗宋词进行品鉴时,不禁对其中有关自然描写的诗句发出赞叹,诗词意境完全符合她的心境,以至从文本中获得与心灵的相契,描写自然的诗词成了寄托思想感情的归宿,四时交替也如人生变换,顺应自然也就顺应了人生。

高度失律脑波在动态脑电图中的不同构型变化

目的:探讨婴儿痉挛症(IS)高度节律失调(Hypsarrhythmia)脑波的不同构型变化,以防误诊或漏诊。方法:利用动态脑电图对12例 IS 患儿进行了24小时连续监测。结果:发作间期,高度失律脑波有5种不同类型,发作时的脑波亦不为同一模式,睡眠中,可诱发出高度失律脑波。结论:婴儿痉挛症的高度失律脑波在发作间期或发作时均存在着不一致性,并对其病理生理机制提出了设想。

探寻生命的那一波律动——访生理学家何瑞荣教授

人生在世,有准没得过病呢?人得了病,都知道到医院去看医生,一旦药到病除,自然对大夫感激不尽。然而,医生又是缘何作出正确的诊断从而正确地对症施治的呢?要解答这个问题,就用着作为基础医学的生理学了。照片这位学者,就是我国著名生理学家、全国政协委员、河北省最早的自然科学博士生导师之一、河北医学院教授何瑞荣先生。3月初,我们走访了何教授。6s岁的何瑞荣教授祖籍江苏省无锡市,操着一口浓浓的江苏口音。

Sugeno空间上的波雷尔0-1律及收敛理论

Sugeno测度是一种模糊测度。在Sugeno空间上提出并证明经典的波雷尔0-1律,同时介绍两种新的收敛概念并讨论这两种收敛之间的关系。这一工作把经典的结论推广到了Sugeno空间,得到了模糊环境下的波雷尔0-1律和相关的收敛理论,扩大了它们的研究范围和应用领域。

一种空时二维超分辨分维估计方法

介绍了一种应用在多普勒频率和DOA估计分维处理情况下,利用时域ESPRIT方法进行盲Doppler频移估计和时域投影变换法进行DOA估计的空时二维超分辨方法。仿真试验证明了该算法具有较高的分辨性能和较好的稳健性,不但具有全方向来波的分辨能力,而且对小角度差来波具有高分辨能力。

Conservation Laws and Soliton Solutions for Generalized Seventh Order KdV Equation

With the assistance of the symbolic computation system Maple,rich higher order polynomial-type conservation laws and a sixth order t/x-dependent conservation law are constructed for a generalized seventh order nonlinear evolution equation by using a direct algebraic method.From the compatibility conditions that guaranteeing the existence of conserved densities,an integrable unnamed seventh order KdV-type equation is found.By introducing some nonlinear transformations,the one-,two-,and three-solition solutions as well as the solitary wave solutions are obtained.

Occurrence Rule and Forecast Method of Cotton Aphid in Poyang Lake Area in Jiujiang City

[Objective] The aim was to explore occurrence rules and forecast methods of cotton aphid in Poyang Lake Area in Jiujiang City to enrich prediction methods of cotton aphid in the area. [Method] The occurrence rules and influencing factors of cotton aphid in Pengze County in 28 years were analyzed with comparative analysis, correlation analysis and wavelet analysis. Furthermore, a long-term forecast model of occurrence grade of cotton aphid and a short-term forecast model of weather condi- tion suitability were established based on stepwise regression. In addition, a forecast test was conducted in cotton area in the north of Poyang Lake. [Result] The wavelet analysis showed that in recent 28 years, oscillating period at 4 years was significant for the occurrence grade of cotton aphid in the north of Poyang Lake, but insignifi- cant for cotton at seedling stage. The comparative and correlation analyses suggest- ed that occurrence of cotton aphid is of significant correlation with winter climate and weather conditions at middle and short periods. The prediction test indicated that long-term forecast model of occurrence grade of cotton aphid and short-term forecast model of weather condition suitability based on stepwise regression can be made use of in the areas with similar climate. [Conclusion] The research provides theoreti- cal references for prevention against cotton aphid in cotton-planting area.

On a New Three-Component Camassa Holm Equation with Peakons

A new three-component Camassa-Holm equation is introduced. This system is endowed with a structuresimilar to the Camassa-Holm equation. It has peakon solitons and conserves H^1-norm conservation law.

Propagation law of shock waves and gas flow in cross roadway caused by coal and gas outburst

In order to study the propagation law of shock waves and gas flow during coal and gas outburst,we analyzed the formation process of outburst shock waves and gas flow and established the numerical simulation models of the roadways with 45°intersection and 135°intersection to simulate the propagation of outburst gas flow and the process of gas transport.Based on the analysis of the simulation results,we obtained the qualitative and quantitative conclusions on the characteristics and patterns of propagation and attenuation of outburst shock waves and gas flow.With the experimental models,we investigated the outburst shock waves and gas flow in the roadways with the similar structures to the simulated ones.According to the simulation results,when the angle between the driving roadway and the adjacent roadway increased,the sudden pressure variation range in adjacent roadway and the influencing scope of gas flow increased and the sudden pressure variation duration decreased.The intersection between the driving roadway and the adjacent roadway has no effect on airflow reversal induced by the shock waves and gas flow.

光速:不变,又变

提出了“波运动假说” ;运用“波运动守恒律”证明了物体质量对速度的依赖关系m =m0 / [1- (v2 /c2 ) ]1/2 ,并根据这个关系证明了任两个有静止质量的物体之间的相对速度必须小于作为常量的绝对速限c ;推论光子的静止质量并不为 0而为无穷小 ,光子的速度并不绝对等于c而是无限逼进c ,不同光子的速度并不完全相等 ;指出光子频率的红移或蓝移正是以另一种量纲 (超量纲 )的形式表现出的光子的速度的变化 ;

Behavioral Aspects in Obligatory Reports of Public Hospitals in Poland

The health care sector is the most difficult one to manage and control. Special units in this field are public hospitals which are required to prepare a lot of reports to various institutions, including the ownership body. The paper focuses on two issues. The first is the presence of behavioral factors in the reporting of public hospitals in Poland to the ownership bodies. This article aims to indicate the thematic areas of specific reports, most affected by behavioral factors and explain the causes and consequences of their occurrence. The second issue is the analysis of the legal status of obligatory reporting of public hospitals. Participants of the conducted research, due to their specific ownership and political and social position, were public hospitals in Poland. The paper uses the research methods of the meta-analysis of the literature, legal acts in Poland and empirical materials, and also the methods of synthesis, observation, and deduction. Data analysis focused on specific sample of reports issued by Polish public hospitals for their ownership body. The research shows that hospitals draw up a tremendous number of often thematically overlapping and redundant reports addressed to different institutions in different time periods. It is a consequence of legal regulations failing to streamline the reporting of the health care sector institutions, in particular public hospitals. The paper points to the large number of legal instruments that contain imprecise requirements resulting from the complex and obscure forms of control of public funds allocation in this sector. There are many behavioral factors that shape some fields of public hospitals＇ reports, for example, interpersonal relationships, egoism, private financial interests, strengthening of the employment status and professional position, and professional competences. There is considerable freedom in the reporting process fulfilled by public hospitals in Poland for their ownership body. It causes strong consequences, like poor-quality data, duplication of information, and its chaos, as well as high costs of obtaining information. Reporting system of financial and non-financial data of public hospitals in Poland is dysfunctional.

A refinement of scaling laws in wall turbulence

As a universal conclusion of turbulent scale, scaling laws are important to the research on statistic turbulence. We measured two-dimensional instantaneous velocity field in turbulent boundary layers of flat plate with the momentum thickness Reynolds number Reθ=2 167. Scaling laws have different forms in different wall distance and scale. We proposed an expected scaling law and compared it with the She-Leveque (SL) scaling law based on the wavelet analysis and traditional statistical methods. Results show that the closer to the wall, the more the expected scaling law approached to the SL scaling law.

Broadband underwater target echo detection based on signal spectral irregularity feature

For the detection of underwater target echo under strong interferences,the modulation feature of direct echo signal and reverberation spectrum are characterized by the signal spectral irregularity feature,and the relationship between signal spectral irregularity and target physical properties is theoretically formed.A novel method of broadband underwater target echo detection under reverberation based on the signal spectral irregularity characteristics is proposed.The proposed method has the capability of discriminating between the direct target echo signal from reverberation.Simulation results of complex underwater target broadband acoustic scattering show that the echo can be detected even with the signal to reverberation ratio(SRR)below-10 dB by the proposed method based on the spectral irregularity(SI)feature.The corresponding sea experimental results also show that echo can be detected when the SRR is below 0 dB.The effectiveness and correctness of the proposed method are verified both in simulated data and in real data in sea experiment.

The Fractional Power Law of Wind Wave Growth in Deep Water for Short Fetch

Combining the 3/2 power law proposed by Toba with the significant wave energy balance equation for wind waves, wave growth in deep water for short fetch is investigated. It is found that the variations of wave height and period with fetch have the form of power function with fractional exponents 3/8 and 1/4 respectively. Using these exponents in the power functions and through data fitting, the concise wind wave growth relations for short fetch are obtained.

Approximate Noether-Type Symmetries and Conservation Laws via Partial Lagrangians for Nonlinear Wave Equation with Damping

In terms of our new exact definition of partial Lagrangian and approximate Euler-Lagrange-type equation, we investigate the nonlinear wave equation with damping via approximate Noether-type symmetry operators associated with partial Lagrangians and construct its approximate conservation laws in general form.

Experiment study on the propagation laws of gas and coal dust explosion in coal mine

The experiment of gas and coal dust explosion propagation in a single lanewaywas carried out in a large experimental roadway that is nearly the same with actual environmentand geometry conditions.In the experiment,the time when the gas and coal dustexplosion flame reaches test points has a logarithmic function relation with the test pointdistances.The explosion flame propagation velocity rises rapidly in the foreside of the coaldust segment and comes down after that.The length of the flame area is about 2 timesthat of the original coal dust accumulation area.Shock wave pressure comes down to therock bottom in the coal dust segment,then reaches the maximum peak rapidly and comesdown.The theoretical basis of the research and assemble of across or explosion is suppliedby the experiment conclusion.Compared with gas explosion,the force and destructiondegree of gas and coal dust explosion is much larger.

Existence for Semilinear Wave Equations with Low Regularity

In this paper, we study how much regularity of initial data is needed to ensure existence of a local solution to the following semilinear wave equations utt-△u=F（u,Du） u（0,x）=f（x）∈H^s,δtu（0,x）=g（x）∈H^s-1,where F is quadratic in Du with D = （δr, δx1,…, δxn）.We proved that the range of s is s ≥n＋1/2 ＋ δ, respectively, with δ 〉 1/4 if n = 2, and δ 〉 0 if n = 3, and δ ≥0 if n ≥ 4. Which is consistent with Lindblad＇s counterexamples [3] for n = 3, and the main ingredient is the use of the Strichartz estimates and the refinement of these.

Legal Frame for Criminal Proceedings Against Juveniles in the Federation of Bosnia and Herzegovina

The paper analyzes applicability of legal frame of international standards on the protection of juvenile rights which are expressed through the concept of protection of ＂the best interests of a child and juvenile＂, in view of the question whether the Federation of Bill performs appropriate activities and to which extent, and are there controversy points that need to be resolved separately. It points out the unknowns which the practices of the courts in the Federation of Bill have not yet completely resolved, and are related to the applicability of the new rules adopted by the Law on Protection and Treatment of Children and Juveniles in Criminal Proceedings of the Federation of Bill. Also, it presents a set of legal rules that regulate criminal proceedings against juveniles within the Federation of Bill, with a special emphasis on the basic characteristics of this process. Finally, possible solutions to the mentioned ambiguities and dilemmas are proposed in accordance with the principle of legal certainty as essential to addressees of the relevant legal norms

Electrocardiogram Signal Denoising Using Discrete Wavelet Transform

The most common noises in ECG （electrocardiogram） signal processing are BW （baseline wandering） and the 50 or 60 Hz PLI （power line interferences）. In order to remove these two major source of noises, we have used the recent powerful DWT （discrete wavelet transform） signal processing in ECG signals which are obtained from MIT-BIH Arrhythmia Database. The results indicate that DWT is a good method for filtering noises without changing the morphology of ECG, and can be applied to all types of ECG signals, whether normal or presenting arrhythmias.