燃煤锅炉改造问题及节能环保改造措施

在现代社会的发展中,燃煤锅炉是工业发展中常用的供暖设备、供热设备,尤其在北方地区得到了十分广泛的应用。但是,在使用燃煤锅炉过程中,一定区域内会产生很多燃煤灰尘、SO2气体,现已成为很多地区的大气污染源之一。为了有效控制燃煤锅炉污染物排放量,相关部门需要实行烟气除尘、脱硫方式,做好燃煤锅炉节能改造工作,减少大气污染物的排放量。论文重点分析了燃煤锅炉改造问题及节能环保改造措施。     

我国中小企业发展状况与政策研究——新形势下中小企业转型升级问题研究

我国中小企业得到了迅速的发展,在面向市场求生存、求发展中极具活力,已经成为国民经济中最活跃的成分。但是,面临复杂多变的国内外经济形势,结构性矛盾依然存在,局部性困难突出,新老问题交织,尤其部分行业小微型企业面临严峻形势,强大的市场倒逼机制推动中小企业加快转型升级的步伐。目前,阻碍中小企业转型升级的市场准入隐性壁垒依旧存在,转型升级下新生需求的多元化的金融业务、市场和机构发展滞后,中小企业成本全面上升导致转型升级动力不足,转型发展面临技术创新和管理创新瓶颈,中小企业的政府管理部门协调不力使得转型升级缺乏保障。未来必须充分认识中小企业的重要地位,把促进中小企业发展上升到国家战略层面,加强改革的顶层设计,破除民营经济和中小企业发展的体制机制障碍,缓解转型升级中融资难问题,同时通过加大扶持小微企业发展的财税支持力度以及鼓励中小企业转型升级和技术创新等,保障和促进中小企业转型与升级。     

传统媒体的转型与融媒生态圈构建研究——以杭州二更网络科技有限公司为例

当前融媒体的发展已成为一股不可逆转的潮流。传统媒体的转型需要媒体行业整合自身优势,从资源、内容、宣传、价值等方面入手,对生产运营进行改革,重建媒体与用户之间、新媒体与传统媒体之间的“链条”。论文以杭州二更网络科技有限公司为例,具体阐述了“二更”的传统媒体转型,将新媒体融入“二更”文化,打造属于“二更”的融媒体生态圈。     

Tick Size and Financial Reporting Quality in Small-Cap Firms: Evidence from a Natural Experiment

Using a natural experiment (the SEC's 2016 Tick Size Pilot Program), we investigate the effects of an increase in tick size on financial reporting quality. The tick size pilot program reduces algorithmic trading (AT) and increases fundamental investors’ information acquisition and trading activities. This in turn increases the scrutiny of managers’ financial reporting choices and reduces their incentives to engage in misreporting. Using a difference-in-differences research design, we find a significant decrease in the magnitude of discretionary accruals, a significant reduction in the likelihood of just meeting or beating analysts’ forecasts, and a marginally significant decrease in restatements for the treated firms in the pilot program. Furthermore, we find that the change in financial reporting quality is concentrated in treated firms experiencing decreases in AT and increases in information acquisition activities. We also find that the mispricing of accruals is significantly lower for treated firms. Taken together, our results suggest that an increase in tick size has a causal effect on firms’ financial reporting quality.     

无穷范数松弛的低复杂度超奈奎斯特检测

超奈奎斯特(Faster-than-Nyquist,FTN)速率传输可以有效提高频谱效率，但这种非正交传输方式引入的严重码间串扰相应提高了接收端的处理难度。针对该问题，设计了一种基于循环成块传输的低复杂度检测算法。最优检测被建模为无约束的二元二次规划(Boolean Quadratic Program,BQP)问题，为了求解该NP-hard问题，采用无穷范数约束松弛原问题的非凸可行解集，并基于次梯度下降法提出松弛问题的有效优化算法。数值仿真结果表明，所提算法在误比特率(Bit Error Rate,BER)性能上优于频域均衡，且在可接受的性能损失范围内算法执行效率远高于理论最优的最大似然序列估计(Maximum Likelihood Sequence Estimation,MLSE)。     

转型时期人民当家作主主体自觉性缺失与构建探讨

党的十八大强调夺取中国特色社会主义新胜利,必须坚持人民主体地位。笔者分析了我国转型时期主体自觉性缺失对人民当家作主的制约,提出了通过健全各项民主制度扩大人民当家作主的群众基础、加强法制宣传教育以增强人民依法维权自觉性、建设社会主义核心价值体系提供精神动力和思想保证等措施来构建人民当家作主的主体自觉性。     

集装箱船初稳性高度优化模型的建立

为解决目前集装箱配积载中尚需结合人工经验来进行箱位选配的问题,通过研究集装箱船配积载前重心距基线高,运用集装箱船初稳性高度计算原理,结合集装箱船的结构特点,建立集装箱船初稳性高度优化模型。运用交互式的线性和通用优化求解器编写程序,其研究成果将为实现集装箱船自动化配积载目标提供理论基础。     

Structural transformation and productivity growth in India during 1960–2010

In this paper, we examine the role of structural change and sectoral productivity growth in explaining the aggregate productivity of India relative to the United Sates during 1960–2010. We set up a simple two sector general equilibrium model and calibrate it to fit the structural transformation of United States. Our calibrated model for India highlights the relative importance of agricultural productivity growth in explaining its slow process of catching up in terms of aggregate productivity. We show that India could have progressed at a much faster rate and closed a substantial part of its aggregate productivity gap if its agricultural sector had grown at a rate at par with the United States. It is India's relative productivity growth in the non-agricultural sector that explains all the recent success in its closing the aggregate productivity gap with the United States. We also found that an elimination of relative distortion in agriculture in India could result into a modest improvement in the aggregate labour productivity.     

The role of loyalty programs in boosting hotel guest loyalty: Impact of switching barriers

This study examines the relationships among the perceived value of a loyalty program, customer satisfaction with a loyalty program, affective commitment, switching barriers, and customer brand loyalty in the hotel context. An online survey method with a quantitative approach was used. Our results from a structural equation model revealed that the perceived value of a loyalty program is essential in the formation of customer brand loyalty. Lastly, findings from an indirect analysis showed that affective commitment and switching barriers mediated the relationship between the perceived value of a loyalty program and customer brand loyalty. Overall, our research will help researchers and practitioners demonstrate to the industry that the loyalty program is a crucial strategy for customer loyalty and helps develop competitive loyalty programs for success.     

湘桂铁路下穿全兴高速公路设计方案优化

新建湘桂铁路于DK233+503处下穿全兴高速公路,原设计采用顶进框架桥方案。通过对安全质量的可控性、经济、工期等方面进行综合比选,取消顶进框架桥,变更为公路箱梁桥上跨铁路方案,采用分幅封道、分幅施工,既安全快速地穿过全兴高速公路,又创造了良好的经济效益和社会效益,为类似的工程提供了一定的参考价值。