“交响”英语课堂中倾听与表达能力的培养实践与思考——例谈9A Unit 3 Integrated skills

我校以"交响"来表述合作互动的目的、方式和效果,强化了合作中互动行为的必要性,强调建立起良性的互动机制和互动关系。让学生在生生、师生互动中学会倾听,学会接纳,学会提升、学会表达自己的认识,增强合作意识,提高交往能力。在老师润物细无声的指挥下,师生共奏出行云流水、气势磅礴的交响乐,在教学目标的达成中享受着完美的和谐。

黑白音符的遐想——谈钢琴演奏中的想象

钢琴因其宽广的音域、音色多变和丰富的表现力,被称为“乐器之王”。在钢琴教学中,多数老师关注学生的技术问题,反而忽视了对音乐思想的传递和作品内容的表达,以及对想象的训练,这些是钢琴教学的重要环节。本文从对音响的想象、钢琴演奏中“交响化”的思维与想象、对“情节”的想象和内心视像四个维度出发,探讨钢琴演奏中的想象。

论钢琴改编曲《胡桃夹子》的“交响化”重组手法

改编曲是自古即有的音乐作品艺术形式,钢琴改编曲推动了钢琴的音色向更丰富的层次发展,强化了钢琴技术向更高层次发展的趋势。本文从普雷特涅夫改编的钢琴音乐会组曲《胡桃夹子》中分析《进行曲》《糖果仙子舞曲》《俄罗斯舞曲》《中国舞曲》四首改编曲的曲式结构与交响化重组进行探究,让演奏者从中获得更多的改编曲的音响效果,并以此来挖掘钢琴潜在的丰富表现力。

浅议19世纪的交响乐与“交响思维”

交响乐的形式是构建“交响思维”的起点。 交响乐的变化与“交响思维”的变化相关。 几世纪以来,交响乐在形式逐渐成熟完善时,其作品的内容逐渐丰富起来,创作者的主观意识逐渐被允许表达。 “交响思维”经历了从具象依附到可以用于建立抽象维度的变化,“交响思维”可以在不同的语境中构建并阐述音乐作品。 文章以“交响思维”趋于成熟的 19 世纪为线索,探寻其发展特点、交响乐的关联以及对人们审美的影响。

高中音乐欣赏中的“交响思维”

聆听伟大的交响乐,是培养交响力的绝佳方法,在不同的情境中的教学方式,学生对音乐的感知能力也会存在着一定的差异性。“交响思维”是一种极为高级的思维模式,具有一定的灵活性和开放性特点,随着艺术教育的发展,将其渗透到高中音乐欣赏教学中,对学生音乐语言的建立具有促进作用。基于此,文章从力度、和声、音乐和旋律中介绍了“交响思维”的构成要素,接着探讨了学生“交响思维”的形成策略,以期为高中音乐教师教学提供参考。

论穆木天的《谭诗》

《谭诗》首次将西方象征主义的"纯诗"概念,作为反驳"散文化"的有力武器引入中国诗坛。穆木天一方面横移西方象征主义的观念为逻辑起点,一方面又在具体论述中竭力抹去其超验色彩,这既来源于辰野隆的启示,也表现了穆木天试图建构中国"纯诗"理论的努力,并直接导引了中国化的"纯诗"理论与西方象征主义的不同特征。

Construction of crash prediction model of freeway basic segment based on interactive influence of explanatory variables

In order to improve the prediction precision of the safety performance function （SPF） of freeway basic segments, design and crash data of 640 segments are collected from different institutions. Three negative binomial （NB） regression models and three generalized negative binomial （GNB） regression models are built to prove that the interactive influence of explanatory variables plays an important role in fitting goodness. The effective use of the GNB model in analyzing the interactive influence of explanatory variables and predicting freeway basic segments is demonstrated. Among six models, the two models （one is the NB model and the other is the GNB model. ） which consider the interactive influence of the annual average daily traffic （AADT） and length are more reasonable for predicting results. Furthermore, a comprehensive study is carried out to prove that when considering the interactive influence, the NB and GNB models have almost the same fitting performance in estimating the crashes, among which the GNB model is slightly better for prediction performance.

Enhanced Viscosity of Poly（acrylamide）Solution in the Presence of Chromium Citrate Triggered by Release of CO2

Partially hydrolyzed polyacrylamide （HPAM） has been widely used for water shut-off and profile control to enhance oil recovery. Herein, we reported a novel technique by which the crosslinking between HPAM and Cr3＋ in aqueous solutions at 60 ℃ can be delayed effectively. Citric acid was selected as an organic complexing agent of Cr3＋ so that the crosslinking between HPAM and Cr3＋ can be prevented completely. Due to the decomposi- tion of the bicarbonate （HCO3-） embedded in solution, CO2 released from solution and the pH value of solution increased gradually. The degree of ionization of HPAM and its ability to complex with Cr3＋ increased accordingly. When the complexation of Cr3＋ with HPAM is stronger than that with citric acid, the viscosity of the HPAM solution increased signif- icantly. Under the closed condition, together with the existence of potassium dihydrogen phosphate （KH2PO4）, the release of CO2 was very slow and the condition was highly con- trolled so that the ionization of HPAM was prevented initially. Furthermore, the hydrogen bonding interactions between HPAM and melamine embedded in solution previously also postponed the ionization of HPAM. As a result, the crosslinking between HPAM and Cr3＋ can be delayed for almost one month, completely meeting the requirements for deep water shut-off and profile control to enhance oil recovery.

Analysis of digenic epistatic effects and QE interaction effects QTL controlling grain weight in rice

Immortalized F2 population of rice (Oryza sativa L.) was developed by randomly mating F1 among recombinant inbred (RI) lines derived from (Zhenshan 97B×Minghui 63),which allowed replications within and across environments.QTL (quantitative trait loci) mapping analysis on kilo-grain weight of immortalized F2 population was performed by using newly developed software for QTL mapping,QTL Mapper 2.0. Eleven distinctly digenic epistatic loci included a total of 15 QTL were located on eight chromosomes.QTL main effects of additive,dominance,and additive×additive,additive×dominance,and dominance×dominance interactions were estimated.Interaction effects between QTL main effects and environments (QE) were predicted.Less than 40% of single effects,most of which were additive effects,for identified QTL were significant at 5% level.The directional difference for QTL main effects suggested that these QTL were distributed in parents in the repulsion phase.This should make it feasible to improve kilo-grain weight of both parents by selecting appropriate new recombinants. Only few of the QE interaction effects were significant.Application prospect for QTL mapping achievements in genetic breeding was discussed.

Research on the coefficient of sound absorption in turbid water

China’s coastal waters are turbid and the properties of the seabed are complex. This negatively impacts the performance of underwater detection equipment. The properties of sound absorption in turbid water are not well understood. In this paper, the coefficient of sound absorption in turbid water was measured by the reverberation technique. All work was done in a reverberation barrel made of seamless aluminum. First, pure water was poured into the reverberation barrel and its reverberation time measured. Next, various concentrations of turbid water were poured into the barrel and their reverberation time measured. After all data had been gathered, the coefficient of sound absorption in turbid water of different concentrations was calculated. From this we determined a law of sound absorption in turbid water as summarized in the paper.

Point-of-Interest Recommendation in LocationBased Social Networks with Personalized Geo-Social Influence

Point-of-interest(POI) recommendation is a popular topic on location-based social networks(LBSNs).Geographical proximity,known as a unique feature of LBSNs,significantly affects user check-in behavior.However,most of prior studies characterize the geographical influence based on a universal or personalized distribution of geographic distance,leading to unsatisfactory recommendation results.In this paper,the personalized geographical influence in a two-dimensional geographical space is modeled using the data field method,and we propose a semi-supervised probabilistic model based on a factor graph model to integrate different factors such as the geographical influence.Moreover,a distributed learning algorithm is used to scale up our method to large-scale data sets.Experimental results based on the data sets from Foursquare and Gowalla show that our method outperforms other competing POI recommendation techniques.

“The Great Classicist Symphonic Movements of Beethoven... Can Be Ideally So Heard as Lasting Just a Moment：” Adorno on Musical Time

In the context of his thoughts on the relationship between music and time in his Musical Writings, Adorno refers often to the above quoted thesis. This paradoxicality, attributed to particular symphonies of Beethoven, tends to become a fixed idea in the context of his thoughts on musical time. Adorno adopts Hegel＇s understanding of time as process of permanent overcoming of instants. He finds an analogy between instant and musical motive, based on the common, in Hegel＇s and Beethoven＇s systems, notion of the working-out of an idea and of a musical structure respectively. He then tries to include in the process of becoming extended and reappearing formal parts, such as themes and expositions. How could he find a convergence between permanent formal growth and persistence of formal parts, which distinguishes a musical work from an improvisation？ In order to transcend this immanent antinomy, he applies Hegelian logical principles.

Mitigation Strategy against Cascading Failures on Social Networks

Cascading failures are common phenomena in many of real-world networks,such as power grids,Internet,transportation networks and social networks.It's worth noting that once one or a few users on a social network are unavailable for some reasons,they are more likely to influence a large portion of social network.Therefore,an effective mitigation strategy is very critical for avoiding or reducing the impact of cascading failures.In this paper,we firstly quantify the user loads and construct the processes of cascading dynamics,then elaborate the more reasonable mechanism of sharing the extra user loads with considering the features of social networks,and further propose a novel mitigation strategy on social networks against cascading failures.Based on the realworld social network datasets,we evaluate the effectiveness and efficiency of the novel mitigation strategy.The experimental results show that this mitigation strategy can reduce the impact of cascading failures effectively and maintain the network connectivity better with lower cost.These findings are very useful for rationally advertising and may be helpful for avoiding various disasters of cascading failures on many real-world networks.

Fork-Join program response time on multiprocessors with exchangeable join

The Fork-Join program consisting of K parallel tasks is a useful model for a large number of computing applications. When the parallel processor has multi-channels, later tasks may finish execution earlier than their earlier tasks and may join with tasks from other programs. This phenomenon is called exchangeable join (EJ), which introduces correlation to the task’s service time. In this work, we investigate the response time of multiprocessor systems with EJ with a new approach. We analyze two aspects of this kind of systems: exchangeable join (EJ) and the capacity constraint (CC). We prove that the system response time can be effectively reduced by EJ, while the reduced amount is constrained by the capacity of the multiprocessor. An upper bound model is constructed based on this analysis and a quick estimation algorithm is proposed. The approximation formula is verified by extensive simulation results, which show that the relative error of approximation is less than 5%.

以画面文化 绘美好画面——南昌师范附属实验小学打造学校文化特色的探索

南昌师范附属实验小学以"画面文化向上教育"为主题,进行学校文化特色建设。具体行动包括,校园VI:打造诗画校园;"五红阵地":拓宽教育载体;三重画面:建设"交响课程"等。

Alternating response of spin current in a magnetic-oscillating quantum dot

We investigate alternating response of the spin current in a quantum dot system coupled to a normal metal electrode, to which an alternating driving voltage and a pumping rotating magnetic field are applied. The expression of the time-averaged spin current and its differential is obtained based on a non-equilibrium Green＇s function method. We find that for a given rotating frequency, the spin current increases rapidly and appears to have small steps when the driven frequency increases. As the driven frequency is further increasing, the spin current can be significantly enhanced and approaches a stable value. The photon-assisted processes bring about interesting features of spin current. The influence of the gate voltage and temperature on the spin current is examined in detail.

The Effective AC Response of Nonlinear Composites

A perturbative approach is used to study the AC response of nonlinear composite media, which obey a current-field relation of the form with components having nonlinear response at finite frequencies. For a sinusoidal applied field, we extend the local potential in terms of sinusoidal components at fundamental frequency and high-order harmonic frequencies to treat the nonlinear composites. For nonlinear composite media with a low concentrations of spherical inclusions, we give the formulae of the nonlinear effective AC susceptibility at the third harmonic frequency.

Traffic Impact on Incentive Contracting Project Time Performance during Highway Construction

The volume of highway traffic in the United States continues to increase. In the face of this there is a concomitant need to improve and repair transportation infrastructure. Construction frequently requires a reduction in capacity during construction activity; consequently road users as well as adjacent businesses must endure the delays and inconveniences associated with transportation construction. Recognizing the problems that construction can produce, state highway agencies （SHAs） have continually sought ways to minimize the negative impact from their construction operations. Incentive contracting has played an important role in this effort to improve project performance. The Florida Department of Transportation （FDOT） is one of the leading SHAs using such innovative contracting methods as Incentive/Disincentive （I/D）, A＋B （cost plus time bidding） combined with I/D, No Excuse Bonus, and Liquidated Savings. This paper analyzes the traffic impact on incentive project time performance using highway construction projects recently completed in Florida. Project data obtained from FDOT were evaluated using time performance indices. A survey of traffic impact on project work types was performed in Florida in order to evaluate the relationship between construction project types and road traffic influence during construction. Based on the survey results, the 38 most frequently used work types in Florida during the study period were categorized into three traffic impact levels： （1） high traffic impact, （2） medium traffic impact, and （3） low traffic impact. Statistical analysis was performed. The results show that there are significant differences on project time performance between low and high impact levels as well as low and medium impact levels.

The Research Progress on Assessment and Reduction of Ground-Borne Vibrations Induced by Railway Traffic

Railway induced vibrations and noises are a growing matter of environmental concern. The rapid development of transportation and increases in vehicle speeds and vehicle weights have resulted in higher vibration and noise levels. In the meantime vibrations and noises that seem to have been tolerated in the past, are now more often considered to be a nuisance. Methodology of assessing ground-borne vibrations for railway traffic is presented based on the Federal Railway Administration （FRA） Guidance Manual-High-Speed Ground Transportation Noise and Vibration Impact Assessment. Effectiveness of wave barriers such as open trench, in-filled trench, and piers for reduction of vibrations induced by railways and the procedure for barrier selection are discussed. Finally, an example of vibration assessing of Suvarnabhumi Airport Rail Link is presented to demonstrate the methodology.