近代音乐救国大潮下的音乐审美诉求

在近代历史重大的变革关头,音乐教育被赋予了救亡图存、复兴民族的刻不容缓的神圣伟大的使命。不过,在音乐救国的震撼人心的呐喊中,人们又分明聆听到了对音乐自身审美属性诉求的声音。尽管这种声音在当时还很微弱,却昭示了后来对作为一门独立学科的音乐进行学理探究的方向。

不同配方栽培平菇试验

通过6个栽培料配方试验,筛选出以稻草与棉子壳为3∶7的比例栽培平菇生物转化率最高,为1∶2.95,纯稻草栽培平菇的经济效益最大,为1∶17。

Study on Floating Properties and Stability of Air Floated Structures

In this paper, the buoyancy, kinetic properties and stability of air floated structures have been studied by theoretical and experimental methods. The equations for calculation of the buoyancy of the air floated buoy are derived according to the Boyler law and the equilibrium equations of the air floated structure are established. Through simplification of the air floated structure as a single freedom rigid body and spring system, the natural period of heaving and some kinetic properties are discussed. In the stability analysis, the formulas for calculation of the meta centric height are presented. The theoretical results are in good agreement with the data observed from the model test and prototype test. The air buoyancy decrease coefficient presented in this paper has a large influence on the floating state, stability and dynamic properties of the air floated structure. The stability of the air floated structure can also be judged by the parameter of meta centric height, and calculations show that the air floated structure is less stable than the conventional float.

Energy Anaiysis for TMD-Structure Systems Subjected to Impact Loading

This paper investigates the characteristics of reduction of the lateral vibration by use of a Tuned Mass Damper(TMD) for offshore jacket platforms under impact loading. Unlike traditional analysis, the present analysis focnses on theenergy concept of TMD/structure systems. In this study, a time domain is taken. The platform is modeled as a simplifiedsingle-degree-of-freedom (SDOF) system by extraction of the first vibration mode of the structure and the excited force isassumed to be impact loading. The energy dissipation and energy transmission of the structure-TMD system are studied.Finally, an optimized TMD design for the modeled platform is demonstrated based on a new type of cost function - maxi-mum dissipated energy by TMD. Results indicate that TMD control is effective in reducing the standard deviation of thedeck motion but less effective in reducing the maximum response under impact loading.

系统安全保护神——终极防线

“终极防线”集各种实用功能于一身，可以保护系统安全，让我们的系统免受病毒和非法程序的侵害。同时，它还能自动备份硬盘数据、清理系统中的垃圾，让系统更安全、更稳定！

Investigation of Motion of Two Hinged Bodies Moored by Mooring Lines in Waves

In this paper, the motions are studied of a multi-body which is composed of two plates hinged together and moored by eight mooring lines in regular waves. The experimental results are compared with computational results. The linear potential theory and the perturbation method are combined to study this complicated system. The former is used to calculate the wave forces acting on the plates and the motion responses of them, while the latter is used to describe the dynamic character of the eight mooring lines coupled with the two hinged plates. Some response results of each plate are presented and comparisons between calculated results and experimental data are given. All the calculations are confined to regular beam waves.

Use of Probiotics in Aquaculture

Diseases of cultured animal and environmental pollution are very important problems in aquaculture. The use of probiotics in aquaculture has more advantages than the use of antibiotics and chemicals in aquaculture. This review introduces the use and mechanisms of the probiotics in aquaculture.

The Effects of Shrimp Gut Probiotic Bacteria on the Shrimp Larvae (Penaeus Chinensis)

The survival rates of shrimp larvae in different stage are higher than those of control groups when probiotic bacteria strains X4B 1 and X1B 1 which are isolated from gut of adult shrimp are added into the little volume rearing sea water of shrimp larvae. The effects of probiotic bacteria are evaluated by challenge test (pathogenic bacteria Z 3G 2 isolated from disease shrimp larvae in the hatchery of Jimo town) and low salinity stress resistance tests on shrimp larvae, the survival rate and lengths of the shrimp larvae in the experiment are determined. Results indicate that 1. The survival rate, ability of resistant to low salinity, lengths of the delivered shrimp larvae are improved after the strains of probiotic bacteria, X4B 1 or X1B 1, are added into the rearing sea water of hatchery. 2. The addition of the probiotic bacteria could not influence the change of the bacteria number, NH3 N and COD value in the rearing sea water. 3. The probiotic bacteria used in the experiment have many enzymes such as Lipase, Amylase, Gelatinase and Lecithinase. These enzymes may help the probiotic bacteria to digest the food components fed to shrimp larvae and increase the digestive efficiency of post larvae. This may be one of the reasons why these probiotic bacteria are beneficial to the shrimp larvae.

New Generation Processor Architecture Research

With the rapid development of microelectronics and hardware,the use of ever faster micro processors and new architecture must be continued to meet tomorrow′s computing needs. New processor microarchitectures are needed to push performance further and to use higher transistor counts effectively.At the same time,aiming at different usages,the processor has been optimized in different aspects,such as high performace,low power consumption,small chip area and high security. SOC (System on chip)and SCMP (Single Chip Multi Processor) constitute the main processor system architecture.

SNOEK-Kê-K■STER PEAK OF INTERNAL FRICTION IN Fe-P-N ALLOYS

The internal friction and precipitate phases of the deformed Fe-P-N alloys have been investigated. It has been found that the ratio of depends on the content of P and the relation holds if the content of N is lower than 30wt.ppm and the content of P is lower than 640wt.ppm. It shows that the intercept K2 is related to the presence of the atomic pairs and clusters of P in the alloy matrix.

Active dynamic pre-protection mechanism for MPLS-TP network

The active-fault-alarm （AFA） technologies and the dynamic protection mechanism of the optical network controlled by the multi-protocol label switching transport profile （MPLS-TP） are both studied in this article. On this basis, an active dynamic pre-protection （ADPP） mechanism is proposed. This active dynamic pre-protection mechanism is allowed to establish a so called temporary protection path （TPP） for the work path before a potential fault occurs and to switch to TPP only after the fault occurs. It keeps the TPP flexibly only when it is in low- quality or fault state to realize dynamic protection even better and to achieve better resource utilization. Simulation results show that the proposed new mechanism has better performance in terms of the flexibility and the efficiency from the perspective of time.

INTERACTION BETWEEN ELECTROACUPUNCTURE ANALGESIA AND EXCITATORY AMINO ACID RECEPTOR ANTAGONISTS IN RAT WITH UNILATERAL INFLAMMATION OF THE HINDPAW

The analgesic interaction between electroacupuncture and intrathecal (i. t. ) administration of the non-selective excitatory amino acid receptor antagonist kynurenic acid (KYN) was investigated in a rat model of carrageenan inflammatory pain. The nociceptive threshold of the latency of paw withdraw (PWL) to a noxious thermal stimulation was measured. Electroacupuncture (EA) unilateral (ipsilateral to carrageenan-injected paw) 'Zu-San-Li (St 36) and 'Huantia' (GB30) noints (0.3 ms duration. 2 and 60 Hz alternatelv. 1-2-3 mA.

Agent Technology Application in Automating the Coordination and Decision-Making in Supply Chain

Coordinating all the activities among all the parties involved in supply chain can be a daunting task. This paper put forth the viewpoint of applying agent technology to automate the coordination and decision-making tasks in a typical home PC industry supply chain. The main features of the proposed approach, which differentiate it from other approaches, are the following:① In the prototype, the coordination agents have both cooperation and competition patterns; ② It uses JADE (Java Agent DEvelopment Framework) as the agent development environment to realize efficient and reusable agent software;③ It produces some innovative models for the business processes and issues faced by parties in the supply chain. A prototype and the overall process flow were also described.

A novel QoS supported cooperative diversity algorithm for IEEE 802.11 WLAN

A new cooperative diversity algorithm with quality of service （QoS） awareness for wireless local area network （WLAN） is proposed. According to this protocol, cooperation is invoked only if a direct transmission cannot meet user-specific QoS requirements. If cooperation is implemented, partner choice depends on who can achieve the minimum data rate required to have a successful transmission. The closed-form expressions for the system throughput and the power consumption are provided. Theoretical analysis and simulation results indicate that the QoS-aware cooperative scheme can significantly improve the system performance in terms of throughput and energy efficiency by avoiding negative effect of unconditional cooperation.

Grid-based directed diffusion for wireless sensor networks

Directed diffusion is a data dissemination protocol for wireless sensor networks. In directed diffusion, flooding is used for dissemination of interest and exploratory data, which will bring broadcast storm resulting in substantial energy consumption of networks. A grid-based directed diffusion is presented to improve the energy efficiency of directed diffusion. Virtual geographic grid clusters are constructed by self-organization of nodes using geographic location information. The flooding of interest and exploratory data of original directed diffusion is limited in cluster head nodes. The simulation results and testbed experiments show that the method effectively reduces the network energy consumption. This gain is not achieved at the cost of either delivery ratio or the delay. Importantly, the decreased load also leads to a better delivery ratio and lower delay.

Optimal power allocation for amplify-and-forward in single relay non-cooperative systems

For a single-relay amplify-and-forward (AF) non-cooperative system,an optimal power proportionbetween source and relay is considered.Aiming to minimize end-to-end bit error rate (BER) and maximizeattainable rate,both large-scale path loss and small-scale Rayleigh fading are taken into account.Aclosed form expression to allocate power in optimal proportion at source is obtained.Simulation resultsshow that the proposed scheme to distribute power can minimize BER under any channel conditions.

Application of RS Codes in Decoding QR Code

The QR Code is a 2 dimensional matrix code with high error correction capability. It employs RS codes to generate error correction codewords in encoding and recover errors and damages in decoding. This paper presents several QR Code’s virtues, analyzes RS decoding algorithm and gives a software flow chart of decoding the QR Code with RS decoding algorithm.

China-Russia Bond

Thanks to China's successful launching of the Year of Rus-sia, 2006 will surely go down as a milestone in the history of the China-Russia bond. Furthermore, a still-warmer cli-

Rising Russian-Western Tensions in the Global Security Context

Tensions between Russia and the West have grown increasingly apparent in recent years.This can be demonstrated in Moscow's ideological confrontations with the West,the intensifying rivalry over military strategic force,the fierce geopolitical confrontation,and grave contentions over energy resources between the two.The author concludes that in short,rising Russia-US tensions can hardly be remedied.It is a matter of political significance that merits careful consideration by the international community.

反义DNA和RNA：治疗病毒感染的新策略（上）

基于核酸的基因沉默分子是长度在20个碱基左右的人工合成的单链或双链DNA或RNA。这些分子包括反义寡脱氧核苷酸（AODN）、核酶、脱氧核糖核酸酶和最近比较热门的小干扰RNA（siRNA）。这些基因沉默分子以序列特异性方式靶向细胞或病毒tuRNA，将其断裂和／或阻断其转录和翻译起始，因此成为基因功能分析和药物开发的强有力工具。截至目前为止已经有二十多项基因沉默技术在肿瘤、艾滋病、肝炎、心血管疾病、血液系统疾病的Ⅰ至Ⅲ期临床试验中得到验证。