基于社会网络理论的区域旅游空间结构研究——以京津冀地区为例

本文深入探讨了社会网络理论在旅游研究中的应用,并首次将区域旅游作为研究对象,构建区域旅游空间结构评价模型和指标体系。最后以京津冀地区为例分析论证,提出优化措施。     

黑龙江省城镇经济增长模型研究

黑龙江省的城镇经济发展取得长足进步,深入分析促进经济增长的各变量贡献值有助于促进城镇经济更好更快地发展。本文在对黑龙江省1992～2013年统计数据处理的基础上,采用柯布-道格拉斯函数和索洛余值法对黑龙江省城镇经济发展中的技术进步贡献率进行测定,再结合着现实经济发展中存在的若干问题,给出实现黑龙江省城镇经济发展的若干建议。     

品牌生命体假设及其延伸中的遗传与变异

一、品牌生命体假设品牌延伸就是为了增强市场的竞争力,提升品牌的价值力。要做到这一点,就必须充分考虑到品牌延伸对消费者心理认知的影响。只有了解了这一点,才能促成符合消费者意愿的良性购买行为,才能达到不断提升品牌。探讨品牌延伸对消费者心理认知的影响,我们首先把品牌     

瞿麦（石竹）配方颗粒质量与饮片特征图谱的相关性

为了建立基于饮片特征图谱预测瞿麦（石竹）配方颗粒质量指标的方法,探究瞿麦（石竹）配方颗粒质量与饮片特征图谱的相关性。利用特征图谱对瞿麦（石竹）原料中不同药用部位的化学成分进行表征,明确差异峰,统计15批饮片特征图谱中差异峰占总特征峰的峰面积比值（α值）;同时依据国药瞿麦（石竹）配方颗粒标准对制备的15批饮片瞿麦（石竹）配方颗粒总黄酮含量、出膏率、浸出物含量等指标进行测定;采用Pearson相关性分析方法对饮片特征图谱中的α值与配方颗粒的总黄酮含量、出膏率、浸出物含量进行相关性分析,建立回归模型,并采用具有生产规模的6批瞿麦（石竹）原料、配方颗粒质量参数进行验证。结果表明：王不留行黄酮苷峰和皂草苷峰在饮片中不同药用部位的特征图谱存在相对峰面积差异,15批饮片中二者峰面积总和的α值为0.45～0.83;通过Pearson相关性分析发现,瞿麦（石竹）配方颗粒的总黄酮含量、出膏率、浸出物含量与α值呈显著正相关（P＜0.01）,总黄酮含量与α值极强相关,出膏率、浸出物含量与α值强相关;依据相关性建立的3个回归模型,所得R²均大于0.7,模型拟合度较高,通过6批数据的验证发现预测值和实测值的相对标准偏差均小于15%,说明模型有较好的准确性。研究利用原料特征图谱中的α值能够初步预测所得瞿麦（石竹）配方颗粒的各指标范围,并可实现源头控制瞿麦（石竹）配方颗粒质量,保证所得配方颗粒质量的可控性。     

Labour-Market Developments at a Time of Heightened Uncertainty

These are testing times for labour-market policies in Indonesia. The country faces two major challenges in an unpredictable international and domestic environment: providing people with better, more secure jobs and raising productivity to help raise living standards and reduce poverty. Over the past several months, new global and domestic threats to economic growth have emerged and may hinder progress in jobs and productivity. In the longer term, the government is searching for new strategies to increase productivity, with a focus on supply-side investments in skills and training. In relation to events abroad, uncertainty has increased over the early initiatives taken by the new US president and his nationalist administration, such as the scuttling of the Trans-Pacific Partnership trade deal. At home, likely to be of some significance for economic policy are mass actions that were levelled against Jakarta’s governor but de facto also directed against the government. In the medium term, our assessment of the record of the Joko Widodo (Jokowi) government on the labour market is mixed. Over the past two years, growth has been slower than under the previous administration and hence job creation has also been muted. The experience of a handful of countries in Asia suggests that the government might have done more to stimulate economic growth and create jobs. The disappointing performance of manufacturing stands out. Yet inflation has fallen and the slide in the value of international trade—both exports and imports—has reversed in recent months. Improved fiscal management and a generally successful tax amnesty are other pluses. There was also an unexpected but considerable fall in unemployment in 2015–16, according to labour-force statistics. Some policies, such as the new approach to minimum wages, seem to have had beneficial effects for both business and the economy, and Indonesia has done well in some international rankings, such as the World Bank’s Ease of Doing Business index. However, the picture for the medium to longer term seems less bright for the labour market. There has been much talk about raising productivity by improving skills through government support for investment in training and apprenticeships, as well as by expanding vocational training along the lines of the German model. Expanding tourism is seen as one solution to the lack of employment for young secondary- and tertiary-educated jobseekers. But we have an impression of policy-making on the run; often, the argument for government intervention has not been made clearly enough. We argue that Indonesia still lacks a coherent, well-thought-out plan to increase jobs and productivity.     

国家创新体系视角下的创新型企业建设工程绩效评价

从2006年起,科技部、国资委、全国总工会三部门联合启动了创新型企业建设工程,由此我国创新型企业建设进入快速发展阶段,经过多年的培育,创新型企业建设工程到底有没有取得预想的结果?本文采用非介入研究、对比研究、综合分析等方法,综合评价了创新型企业建设工程近几年来所取得的主要成效,发现创新型企业已经成为我国研发投入的主要力量,其自主创新能力与国际竞争力持续提高,对国民经济发展的贡献日益显著.与发达国家相比,我国研发经费所占GDP的比重较低、研发人员在劳动力中的比例较低、技术对外依存度较高、发明专利的申请有效率较低.     

闽台食品供应链标章与规范整合研究

闽台食品供应链标章与规范及其监管路径和制度存在较大差距.探讨闽台食品及农产品标准对接和供应链标章与规范整合的可行路径,有助于推动闽台农业经贸一体化愿景的实现.     

PORTFOLIO CHOICE VIA QUANTILES

A portfolio choice model in continuous time is formulated for both complete and incomplete markets, where the quantile function of the terminal cash flow, instead of the cash flow itself, is taken as the decision variable. This formulation covers a wide body of existing and new models with law‐invariant preference measures, including expected utility maximization, mean–variance, goal reaching, Yaari's dual model, Lopes' SP/A model, behavioral model under prospect theory, as well as those explicitly involving VaR and CVaR in objectives and/or constraints. A solution scheme to this quantile model is proposed, and then demonstrated by solving analytically the goal‐reaching model and Yaari's dual model. A general property derived for the quantile model is that the optimal terminal payment is anticomonotonic with the pricing kernel (or with the minimal pricing kernel in the case of an incomplete market if the investment opportunity set is deterministic). As a consequence, the mutual fund theorem still holds in a market where rational and irrational agents co‐exist.     

《现代电视技术》课程教学改革新探

《现代电视技术》是电类专业学生的一门重要应用性课程,为激发学生学习兴趣,最大程度提高学生的实践技能,本文从教材选择、实验与实训以及成绩评定等几方面对《现代电视技术》课程的教学改革进行了探讨。     

WIN7平台ARP网络攻防

为了确认Windows7平台下ARP欺骗攻击的防御能力,利用arpfree命令行工具,模拟三种不同的ARP网络攻击,分析攻击结果及对Windows7的性能影响,并检测ARP防火墙在面对以上攻击时的防御能力。未安装防火墙的Windows7可以防御ARPRequest攻击,但三种攻击都会显著的占用带宽资源。Windows7在防火墙的支持下,可以防御三种攻击,只能发现并阻断ARPRequest攻击,两种攻击仍然会占用大量用户的带宽与CPU资源。