高速公路建设BOT融资模式探讨——以黑龙江省为例

BOT模式是最近几年才在黑龙江省发展起来的一种主要用于公共基础设施建设的项目融资模式,为大型基础设施项目的融资提供了新的途径,对于投资大、回收期长的高速公路项目具有很强的吸引力,并随着其融资结构的不断改善,在其适应性和发展上表现出无限的潜力。通过对BOT融资模式在黑龙江省高速公路建设上的应用情况进行分析,找出存在的问题并提出对策,为进一步完善黑龙江省高速公路建设的多元化投融资体制,缓解高速公路建设资金紧张的局面模式提供参考。     

HPLC 法测定豆腐黄浆水中有机酸质量浓度

建立利用反相高效液相色谱法同时快速的测定豆腐黄浆水中柠檬酸、苹果酸、酒石酸、草酸、富马酸、琥珀酸6种有机酸的方法．采用Agilent Eclipse XDB-C18色谱柱;紫外检测器,检测波长为210 nm;流动相为甲醇∶0．01 mol/L KH2PO4-H3PO4缓冲溶液（3∶97,pH值为2．85）;流速为0．8 mL/min;柱温为25℃;进样量为20μL．在最佳色谱条件下,柠檬酸、苹果酸、草酸等6种有机酸能同时、快速的分离．线性相关系数r＞0．9824,检出限为0．5558～1．2948μg/mL,相对标准偏差0．13％～4．2％,该方法具有分析速度快,重现性好,精密度高,定量准确等特点．适用于豆腐黄浆水中有机酸的定量分析,对黄浆水开发利用有重要意义．     

高速铁路在农村地区环境问题的防治对策

文章就高速铁路在农村的几个常见的环境问题作了探讨并提出防治对策。文章对噪声污染、振动污染、大气污染等环境污染的原因做了简要分析之后,并对其进行了农村地区的防治对策的说明,希望对我国高速铁路在农村地区的环境问题的防治带来借鉴作用。     

Tourism development,energy consumption and Environmental Kuznets Curve: Trivariate analysis in the panel of developed and developing countries

The study investigates the relationship between economic growth, carbon dioxide emissions, tourism development, energy demand, domestic investment and health expenditures with an aim to test the validity of the Environmental Kuznets Curve (EKC) hypothesis in the panel of three diversified World's region including East Asia & Pacific, European Union and High income OECD and Non-OECD countries. The study covers the period of last nine years i.e. 2005–2013. The study used the principal component analysis (PCA) to construct tourism development index which is the amalgamation of number of tourists' arrivals, tourism receipts and international tourism expenditures. The results validate the inverted U-shaped relationship between carbon emissions and per capita income in the region. The results further substantiate the following causal relationships i.e. i) tourism-induced carbon emissions, ii) energy-induced emissions, iii) investment – induced emissions, iv) growth led tourism, v) investment led tourism and vi) health led tourism development in the region.     

Decomposition of tourism greenhouse gas emissions: Revealing the dynamics between tourism economic growth,technological efficiency,and carbon emissions

This study proposes an analytical framework for decomposing the national tourism carbon footprint and carbon efficiency to identify the dynamics between economic growth, technological efficiency, and environmental externality. Using the environmentally extended input–output model and decomposition methods, tourism carbon changes are decomposed into the economic factors of total consumption and purchasing patterns, and the production factors of industry input structure and technological improvement. This macro-level approach provides a basis for 1) assessing whether total tourism emissions increase in direct proportion to tourism consumption over time, 2) tracing the underlying determinants and their effects on tourism emissions expansion and eco-efficiency performance, and 3) comparing the carbon performance of the tourism industry against the national average. Based on the example of Taiwan, the results demonstrate that we are a long way from the goal of using the technological efficiencies of production to offset tourism-based carbon emissions.     

棘孢木霉生物防治相关代谢产物研究

对棘孢木霉生物防治相关代谢产物进行了研究．细胞壁水解酶几丁质酶、外切β-1,3-葡聚糖酶、N-乙酰-氨基葡萄糖苷酶和纤维素酶在不同碳源诱导条件下,都随时间的延长而增加;在立枯丝核菌细胞壁为碳源时,在诱导后期四种水解酶活性都迅速增加,说明立枯丝核菌细胞壁水解物能诱导四种细胞壁水解酶．棘孢木霉代谢产物对病原菌尖孢镰刀菌、立枯丝核菌、杨树烂皮病菌和杨树叶枯病菌都有抑制作用,对立枯丝核菌,尖孢镰刀菌和杨树叶枯病菌的抑制作用较强,对杨树烂皮病菌的抑制作用较弱．最后对棘孢木霉代谢产生的6-戊基-α-吡喃酮进行了测定,其代谢产量为1．32 mg/g菌丝干重．     

葡萄穗霉属真菌次级代谢产物及生物活性研究

葡萄穗霉（ Stachybotrys ）属真菌分布广泛,包括了以黑葡萄穗霉（ Stachybotrys chartarum ）为代表的Stachybotrys complementi ,Stachybotrys kampalensi ,Stachybotrys atra 等多个种。葡萄穗霉能产生多种毒素,严重影响人类的健康和生活,因而受到了科学界广泛关注。综述了葡萄穗霉属真菌所产生的次级代谢产物以及生物活性。     

计算机“千年虫”问题的探讨

通过对物流企业计算机“千年虫”的问题的研究,论述了企业如何发现计算机“千年虫”以及解决计算机“千年虫”的一些方法,可使企业减少因“千年虫”问题给企业带来的危害。     

关东文化背景下东北餐饮合作与发展研究

当今,随着饮食文化交流的不断深入,人们的饮食观念发生了深刻的变化,进入了＂现代饮食文化时代＂。菜系的发展关键是都有身后的文化积淀作支撑,文化才是烹饪艺术的根。立足东北餐饮的文化渊源,结合关东文化的＂合＂、＂闯＂、＂和＂的文化精髓,完成东北餐饮的合作与开发,必须从加强地域文化研究、推动关东传统文化创新的基础上,广泛动员社会力量参与,集中政府、专家、企业三方面的智慧,切实整合东北餐饮文化资源,把地方的餐饮文化资源优势迅速转化为产业优势,实现产业文化化和文化产业化。