论融媒体时代下传统媒体如何提高竞争力

随着社会的不断进步与发展,信息技术水平也随之提高,涌现出了各种新兴媒体,人们获取信息的方式以及生活习惯等发生了一定的转变,在很大程度上影响了传统媒体的发展。在融媒体的时代背景下,媒体之间的竞争非常激烈,传统媒体在发展的过程中面临着新的困境,同时也迎来了机遇和挑战。基于此传统媒体必须要紧跟时代发展的步伐,明确自身的不足及优势,坚守本心,不断创新,加强与新媒体的融合,只有这样才能全面的提高自身的竞争实力,在融媒体时代下占有一席之位。本文主要探讨了在融媒体时代下传统媒体的相关问题。

“三有”教学:小学语文跨学科学习的实施

小学语文跨学科学习,能够帮助学生完成由碎片化学习到整体性学习的过渡,更好地提升学生学习力、迁移力与语文综合素养。基于此,应该建构如下“三有”模式:基于学科属性与儿童视角,做到跨而有“根”;基于学习内容、目标等的合理确定,做到跨而有“度”;基于真实情境问题的解决,做到跨而有“融”。旨在做实做细“三有”教学,促进学生高效学习语文知识,确保新课程改革顺利实施。

Multi-voltage X-ray image sequence fusion based on selection of valid region

A key step is to extract valid information region in the fusion of multi-voltage X-ray image sequence for complicated components. To improve the self-adaption of extraction, a method is presented in this paper. In this paper, the valid informa-tion region is selected by the grey level interval, which is computed by the optimization of image quality evaluation model. The model is based on the histogram equalization and the grey level interval. Then, every valid region of images at different voltages is extracted and they are fused according their grey level transformation function. The fusion image contains completed struc-ture information of the component. The fusion experiment of a cylinder head shows the effectiveness of the presented method.

Temperature Effect on the Life History of Three Types of Brachionus calyciflorus Females

The effect of temperature on the life history characteristics of amictic females (AF), unfertilized mictic females (UMF) and fertilized mictic females (FMF) in Brachionus calyciflorus was studied with replicated individual cultures at 20℃,25℃ and 30℃, and with algae Scenedesmus obliquus for their food. There were highly significant effects of both temperature and female type, independently and interactively, on the duration of juvenile and post-reproduction periods, and the number of eggs produced by the rotifer per life cycle. Among all the temperature-female type combinations, all the juvenile periods of FMF, and the post-reproduction periods of UMF and FMF at 20℃, were the longest, and the number of eggs produced by an UMF at 30℃ was the highest. There were highly significant effects of both temperature and female type on the duration of the reproduction period, but no clear correlation was observed between temperature and female type. The reproduction period of AF was longer than that of UMF and FMF. Only temperature influenced significantly the mean life-span of the three types of females. The duration of juvenile, reproduction and post-reproduction periods as well as the life-span of the three types of females were all reduced very significantly with rise of temperature, but the rates of reduction varied with female type. Among the three types of females, the number of eggs produced per life cycle by an UMF was the highest, and that of a FMF was the lowest. A significant relationship between the number of eggs produced per life cycle and temperature was observed only in the UMF.

Synthetically Evaluation System for Multi-source Image Fusion and Experimental Analysis

Study on the evaluation system for multi-source image fusion is an important and necessary part of image fusion. Qualitative evaluation indexes and quantitative evaluation indexes were studied. A series of new concepts, such as independent single evaluation index, union single evaluation index, synthetic evaluation index were proposed. Based on these concepts, synthetic evaluation system for digital image fusion was formed. The experiments with the wavelet fusion method, which was applied to fuse the multi-spectral image and panchromatic remote sensing image, the IR image and visible image, the CT and MRI image, and the multi-focus images show that it is an objective, uniform and effective quantitative method for image fusion evaluation.

Freeze-thaw Effects on Sorption/Desorption of Dissolved Organic Carbon in Wetland Soils

The effects of freeze-thaw cycles on sorption/desorption of dissolved organic carbon （DOC） in two wetland soils and one reclaimed wetland soil were investigated. DOC concentrations added were 0-600 mg/L. Laboratory incubations of sorption/desorption of DOC had been carried out at -15℃ for 10 h, and then at ＋5℃ for 13 h. Soil samples were refrozen and thawed subsequently for 5 cycles. Initial Mass model was used to describe sorption behavior of DOC. The results indicate that freeze-thaw cycles can significantly increase the sorption capacity of DOC and reduce the desorption capacity of DOC in the three soils. The freeze-thaw effects on desorpfion of DOC in soils increase with the increasing freeze-thaw cycles. The conversion of natural wetlands to soybean farmland can decrease the sorption capacity and increase the desorption capacity of DOC in soils. Global warming and reclamation may increase DOC release, and subsequently increase the loss of carbon and the emission of greenhouse gas.

Who Governs Public Health？ Donor Retreat and the Shifting Spheres of Influence in Southern African HIV/AIDS Policy Making

For the last decade, discussions about who governs policy on prevention and treatment of HIV/AIDS have revolved around the controversial relationship between Western donors and the power they have over their recipient governments. While these debates were once politically germane, recent trends show a decline of donor funding, as well as an increase of financial ownership of the epidemic within Southern Africa. Commensurate with this shifting financial influence, some well-governed, wealthy African states are beginning to deviate from global M＆E （monitoring and evaluation） indicators. These policy movements, away from global M＆E indicators, also correlate with increases in HIV prevalence, which signals the need for further investigation into policy efficacy.

Critical Factors in Financing and Management of Light Rail Transit Systems： Delphi Methodology Approach

In recent years, a large number of LRT （light rail transit） networks and tramways have been built in Spain using the tender system. The rhythm of construction has been such that very few analyses have been carried out and those that have were only partially done because the main participants involved had ulterior motives which impeded their having a critical and independent opinion of the projects carried out. Within this framework, the Delphi methodology presents itself as a very useful instrument, as the intrinsic advantages that it has added to the characteristic that the experts who participate in the project can remain anonymous without detracting value from the conclusions obtained as these are grouped together according to their worth.

Settlement monitoring system of pile-group foundation

In order to realize information construction on settlement of pile-group foundation of Sutong Bridge, the monitoring instruments of high-precision micro-pressure sensor and hydrostatic leveling and settlement profiler were integrated synthetically. A set of practical multi-scale monitoring system on settlement of super-large pile-group foundation in deep water was put forward. The reliable settlement results are obtained by means of multi-sensor data fusion. Finite element model of pile-group foundation is established. By analysis of finite element simulated calculation of pile-group foundation, rules of settlement and uneven settlement obtained by monitoring and calculation results are coincident and the absolute error of settlement between them is 4.7 mm. The research shows that it is reasonable and feasible to monitor settlement of pile-group foundation with the system, and it can provide a method for the same type pile-group foundation in deep water.

Effective Management of Own Funds in Polish Cooperative Banks

Today cooperative banks belong to the most significant financial institution in the world. Moreover, they can compete with commercial banks. The own funds of the cooperative bank are important in their activity. The main goal of this paper is to investigate how much the level of the own funds of the Polish cooperative banks influenced their efficiency. The research pertained to operating cooperative banks in Poland. The following measures of the efficiency were used in the research： return on Equity （ROE）, net profit, index C/I, and financial margin. The results of the study indicate that banks from the Quartile III （highest aggregate own funds）, had the highest net profits, the highest ROE, the lowest C/I value, the lowest ROE, and the lowest financial markups. On this basis, it remains to be recommended that banks of highest aggregate own funds continue expansion of own funds which will increase lending capacity and subsequently contribute to higher effectiveness.

Financial Education and the Evaluation of Financial Education Effectiveness

Nowadays, most people＇ s financial literacy is not high enough in face with the rapid development of economic situation.And currently the popularity of financial education is in a state of scarcity.Thus many countries have taken measures to make financial education more effective. Financial education can not only help financial consumers make wise choice, but also beneficial to the smooth operation of market economy.To some degree, it can also avoid financial crisis.This article introduces the content of financial education and the basic situation of financial education in some developed countries in the first place, and then describes the evaluation of its effectives to raise people＇ s awareness of financial education and to emphasize the necessity of the evaluation of its effectiveness.

Toxic Currency Options in Poland as a Consequence of the 2008 Financial Crisis

The paper is on toxic foreign exchange options problem which occurred in Poland just prior to and after the outbreak of the recent crisis. Especially Polish enterprises were severely stricken by transactions on fx and interest rate derivatives contracted with their banks. Poland was the only EU country which did not precipitate into recession during the financial crisis beginning in 2008. However, the toxic fx and interest rate derivatives transmitted the shockwaves from global financial markets into Poland. Huge dimensions of losses resulted in conflicts between banks and their customers, who claimed just being cheated by the financial institutions. The article deeply researches into reasons for such developments on Polish fx over-the-counter derivatives market. As a case study, an authentic strategy has been presented. The contract was concluded between the construction company and one of the biggest commercial banks in Poland. Because the case study may be representative for many other cases, the analysis includes exact pricing of option strategy and therefore reveals inequality of the contract. The consequences of non-implementing the MiFID directive in the context of derivatives offering to non-financial customers were also touched in the paper.

The Ecological Economic Model Based on Bounded Rational Agents

From the view of hominine bounded rationalities, this paper analyzes the important relationships between ecology and economics with behavioral finance. With a different focus, this paper adopts a new conceptualization of stock to show how this conceptualization leads to a new measure of the interaction between ecology and economics, based on bounded rational agents. The hierarchical structure of ecological economic system is described with a multi-agent sinmlation program. This paper also develops an ecological economic model, in which behavioral finance theories are applied to simulating the dynamics system. With the model this paper confirms, that macro-level indicalors of sustainability are predictably influenced by behaviors of bounded rational agents at the micro-level, We discuss the significance of these findings in order to better understand the ecological-economic system based on behavioral finance.

An Empirical Research of Ethical Banking in Turkey

Ethical banks can be defined as financial institutions providing both social and economic profitability for the society and environment. Placement of assets and avoiding social exclusion are significant factors that differentiate ethical banks and the rest of financial intermediaries. Ethical banking is a new concept in Turkey. This paper analyzes the situation of ethical banking by examining the significant differences in lending behaviors of 49 Turkish banks in terms of their functions and ownership structures. We conducted non-parametric tests of Kruskal Wallis, Jonckheere-Terpstra, Mann-Whitney, Kolmogorov-Smirnov and Wald-Wolfowitz. We found that in terms of ownership structure, state-owned banks are more ethical than private banks when the placement of assets and avoiding social exclusion factors are considered. In terms of function, participation banks locate their funds to social value generating sectors more ethically than deposit and development banks. From the avoiding exclusion aspect, deposit banks are more ethical than other functional banking groups （i.e., participation and development banks）.

基于UKF的雷达和机载ESM扩维跟踪

为有效提高异类传感器融合跟踪的效果,提出了一种基于UKF的雷达和机载ESM扩维跟踪算法。首先将目标和机载ESM的状态信息组合起来,形成一个高维的状态向量,从而有效抑制滤波中GPS定位误差所带来的影响;接着在此基础上采用UKF来实现目标的定位跟踪,以求进一步减小扩维后线性化误差加大等问题的影响。仿真结果表明,该算法可更好地实现对目标的定位跟踪。

Global Systemic Financial Risk Spillovers and Their External Shocks

The shock of the global financial crisis sparked widespread concern across the world about systemic financial risk and led to the reexamination of regulatory mechanisms.The traditional principle of“too big to fail”underwent a transformation into the new idea of“too interconnected to fail.”We used Directed Acyclic Graph(DAG)technology and network topology analysis to examine the dynamic evolution of global systemic financial risk and the risk trends in global financial markets from the perspective of network connectivity.Our findings show that financial markets in the Chinese Mainland are net receivers of risk spillovers and that systemic financial risk has a clear cross-market contagion effect due to a global volatility spillover scale of 64 percent.To maintain the stability and security of China’s financial markets,consideration should be given to the regulatory precept of“too interconnected to fail”in establishing macro-prudential risk prevention mechanisms.

Related the Securities Risk to Time by Using Energy Measuring

Since Harry M Markowitz published ＇portfolio Selection＇ （1952）, financial economists have proposed many methods to measure risk such as variant, downside-variant, average absolute deviation, maximum deviation, VaR and so on. However, these methods share a common limitation, which only consider moment of the price, not consider the influence of exchange quantity. In common situation, these methods and their financial theory models can help investors prevent and scatter the risks effectively, but they are no effective to prevent the financial crisis such as Southeast Asia financial in1997 and LTCM crisis in 1998. In this paper, a new method of measuring risk called energy-risk has been proposed. The aim to this method is to respond the usual risk as well as the risk caused by unexpected event and to prevent the risks under any circumstances effectively.

Bionic mechanical design and 3D printing of novel porous Ti6Al4V implants for biomedical applications

In maxillofacial surgery, there is a significant need for the design and fabrication of porous scaffolds with customizable bionic structures and mechanical properties suitable for bone tissue engineering. In this paper, we characterize the porous Ti6Al4V implant, which is one of the most promising and attractive biomedical applications due to the similarity of its modulus to human bones. We describe the mechanical properties of this implant, which we suggest is capable of providing important biological functions for bone tissue regeneration. We characterize a novel bionic design and fabrication process for porous implants. A design concept of “reducing dimensions and designing layer by layer” was used to construct layered slice and rod-connected mesh structure (LSRCMS) implants. Porous LSRCMS implants with different parameters and porosities were fabricated by selective laser melting (SLM). Printed samples were evaluated by microstructure characterization, specific mechanical properties were analyzed by mechanical tests, and finite element analysis was used to digitally calculate the stress characteristics of the LSRCMS under loading forces. Our results show that the samples fabricated by SLM had good structure printing quality with reasonable pore sizes. The porosity, pore size, and strut thickness of manufactured samples ranged from (60.95± 0.27)% to (81.23±0.32)%,(480±28) to (685±31)μm, and (263±28) to (265±28)μm, respectively. The compression results show that the Young’s modulus and the yield strength ranged from (2.23±0.03) to (6.36±0.06) GPa and (21.36±0.42) to (122.85±3.85) MPa, respectively. We also show that the Young’s modulus and yield strength of the LSRCMS samples can be predicted by the Gibson-Ashby model. Further, we prove the structural stability of our novel design by finite element analysis. Our results illustrate that our novel SLM-fabricated porous Ti6Al4V scaffolds based on an LSRCMS are a promising material for bone implants, and are potentially applicable to the field of bone defect repair.

Can Nano-Particle Melt below the Melting Temperature of Its Free Surface Partner?

The phonon thermal contribution to the melting temperature of nano-particles is inspected. The discrete summation of phonon states and its corresponding integration form as an approximation for a nano-particle or for a bulk system have been analyzed. The discrete phonon energy levels of pure size effect and the wave-vector shifts of boundary conditions are investigated in detail. Unlike in macroscopic thermodynamics, the integration volume of zero-mode of phonon for a nano-particle is not zero, and it plays an important role in pure size effect and boundary condition effect. We find that a nano-particle will have a rising melting temperature due to purely finite size effect; a lower melting temperature bound exists for a nano-particle in various environments, and the melting temperature of a nano-particle with free boundary condition reaches this lower bound. We suggest an easy procedure to estimation the melting temperature, in which the zero-mode contribution will be excluded, and only several bulk quantities will be used as input. We would like to emphasize that the quantum effect of discrete energy levels in nano-particles, which is not present in early thermodynamic studies on finite size corrections to melting temperature in small systems, should be included in future researches.