基于阅读2.0模式,高校馆学生读者网络阅读推广分析

阅读2.0是全民阅读推广的新理念.本文简述了阅读2.0的明显特征及两大优势,并结合长春高校图书馆的调查数据,分析了高校大学生网络阅读现状.     

Preparation and structure of fluorinated/non-fluorinated polyacrylate gradient emulsion blend film

The emulsion blend method, which is environmentally friendly and energy saving, was used to prepare a compositional gradient film of fluorinated/non-fluorinated polyacrylate in this paper. The size and glass-transition temperature (T_g) of the emulsion particles were designed to enhance the driving force of their selective congregation and promote the formation of gradient structure. The structures and surface properties of the obtained films were characterized. The results showed that when the fluorinated components have much smaller particle size and higher T_g than those of fluorine-free polyacrylate components, the gradient structures formed in the direction across the film thickness of the films. The concentration of the fluorinated component increased gradually from film-glass interface to film-air interface in the blend film, making the surface free energies of the two sides of the gradient film distinctively different.     

Connecting Chinese Standards to IEC Standards

During research on different stan- dards for electrical accessories and household electrical appliances it has been suggested that to connect Chinese standards to IEC(International Electrotechnical Commission)standards we should carry out essential innovations based on assimilat- ing according to our own practical conditions.This method is the only way to standardize and at the same time maintain Chinese characteristics.     

Machine learning-based real-time visible fatigue crack growth detection

Many large-scale and complex structural components are applied in the aeronautics and automobile industries.However,the repeated alternating or cyclic loads in ...     

Theoretical analysis of long-lived radioactive waste in pressurized water reactor

Background The accelerator-driven subcritical transmuta-tion system(ADS)is an advanced technology for the harmless disposal of nuclear waste.A theoretical analy...     

关于现金流量表分析的探讨

在日益崇尚"现金至尊"的现代理财环境中,现金流量表分析对信息使用者来说显得更为重要。这是因为现金流量表可清楚反映出企业创造净现金流量的能力,更为清晰地揭示企业资产的流动性和财务状况,从投资人、债权人及各种会计信息使用者角度看,要有效地运用现金流量信息,作出正确的投资和信贷等决策,必须懂得如何正确分析和评价现金流量表。本文就现金流量表的分析方法作了简要的探讨。     

多接口移动主机最优化费用和性能方法研究

目前移动主机普遍具有多个网络接口,可以由这些接口通过不同的网络服务提供商(ISP)接入到Internet中.因此,移动主机与Internet之间就可能存在多条路径,通信的费用和性能取决于ISP的收费策略和网络通信性能.文中首先对移动主机与Internet通信进行建模,然后提出一种基于主动探测可用路径的最优化费用和性能的...     

高速轧机润滑油品含水率实时检测系统的设计与应用

本文简要介绍了高速轧机润滑油品含水率实时检测系统的设计内容与应用情况,本系统使用效果明显,在国内本专业领域处于领先地位。     

WT615增压CNG电喷发动机燃烧特性数值分析

以WT615 CNG发动机为模拟研究对象,采用KIVA-3V软件建立了多维软件计算模型,并验证了模型的准确性。在此基础上研究了主要结构参数——燃烧室形状对燃烧特性和整机性能的影响。研究表明,直口形燃烧室的动力性、经济性能最好,更加适用于该天然气发动机,但排放性能有待提高;缩口形燃烧室的整机性能次之,碗形燃烧室的动力性和经济性则较差,后燃现象严重,不适用于天然气发动机。     

大型水电机组的无级调速技术

介绍了大型水电机组无级调速的两项先进技术,一是利用静止歇尔皮斯系统,另一是大型无换向器电机技术。