基于VAR模型的辽宁省经济增长波动分析

通过建立向量自回归模型，运用脉冲响应函数和预测方差分解的方法对辽宁省宏观经济系统中经济增长的波动情况进行实证分析．研究结论表明：辽宁省经济发展基本符合出口导向型增长假说，影响辽宁省宏观经济波动的变量中，出口额占主要地位，长期上看GDP变化对其响应显著为正，且方差分解中来自出口的新息对GDP波动的贡献也最大．因此，目前加速辽宁省宏观经济增长的有效途径是实施出口导向型战略，在振兴东北老工业基地的基础上大力发展现代化工业并逐步扩大出口。     

经济增长中的波动

提出了一个宏观经济的动力学模型，该模型把短期的市场波动因素加入到长期的增长趋势中，得到了经济增长中增长波动的结果。     

国内生产总值对建筑业增长影响的计量分析

建筑业产出在很大程度上受到整体经济环境影响。采用序列稳定性检验（ADF）技术、协整检验技术和误差较正模型，分析了中国过去20年间国内生产总值（GDP）增长对建筑业增长影响。发现：中国建筑业与GDP之间有长期稳定的均衡增长关系，因此长远来看，建筑业会随着整体经济增长而发展壮大。另外，我国建筑业增长相对于GDP有1－2年滞后期，GDP每增长1％，建筑业会在1－2年后增长1．5％－1．6％，所以根据目前国家宏观经济增长情况，可以预测未来短期内的建筑业大致增长状况，这对于建筑业和房地产投资有指导意义。     

我国煤碳矿区发展规模的影响因素分析

本文通过定性分析与定量分析相结合的方法对矿区发展规模的影响因素进行了探讨．分析认为影响矿区发展规模的影响因素主要有：市场需求、资源储量、开采技术条件、投资、企业效益目标、国家政策、矿区自然地理等。矿区的发展规模必须与相关影响因素相适应．才能取得良好的矿区经济效益和社会效益。     

中国上市公司可持续增长的主因素分析

选择中国1994年底以前在上海、深圳证券交易所上市的282家A股上市公司为研究对象，运用主成份分析和多元回归分析的数理统计方法，确定和解释了影响中国上市公司可持续增长的主成份因素，并研究了上市公司可持续增长与公司营运能力、偿债能力、盈利能力和成长能力的平衡关系。分析结果表明：1)公司可持续增长率与资产负债率成反比，与流动比率、速动比率成正比；2)公司可持续增长率与公司盈利能力正相关，即盈利率越高，可持续增长比率也越高；3)除商业行业外，其余行业公司的可持续增长率与成长能力正相关；4)除商业行业外，不论是样本整体还是分行业、分规模，公司的可持续增长率均与营运能力正相关。     

政府收支对我国经济波动的平抑效果

 采用构建的向量自回归模型（VAR模型）和向量误差修正模型（VEC模型），基于我国1985—2019年度经济发展相关数据的研究发现，政府支出冲击能在一定程度上提高实际产出和私人消费水平，对经济具有显著的促进作用；政府支出冲击会对私人投资造成短期挤出效应和长期挤入效应；从长期来看，政府收入冲击会导致实际产出水平的下降，政府收入冲击会造成私人消费和私人投资的剧烈波动。增强政策的正向效应，需要明确宏观调控中财政政策的目标，重视政府支出的度以及政府收入对私人消费和私人投资的影响，严格把控财政政策效应的滞后期。     

影响上海股市的因素筛选和统计分析

为定量分析上海股市发展的内在机制以及宏观经济因素对股市的影响,特选取１８个表征股市的内部因素和６个与股市有关的宏观经济因素进行相关分析和因子分析,筛选出影响上海股市的１０余个主要因素．通过因子分析得到代表上海股市变化的几个主因子,为进一步研究股市扩容奠定基础．     

我国国债对私人投资的挤入与挤出效应实证分析

我国采用积极的财政政策增发国债,扩大政府公共投资支出,对刺激内需、拉动私人投资和促进国民经济经济增长产生了明显作用。但我国国债规模的扩张,债务规模急剧增加会不会给经济运行带来负面影响？是否挤出私人投资,损害我国长期经济增长的能力等。本文主要运用对政府发行国债与私人投资等指标之间的建立回归方程,通过检验的结果可以看出国债发行与私人投资的t值检验都是显著的,说明中国发行国债对私人投资起到促进作用。     

我国环境污染的影响因素及对策研究

经济增长对生态环境的影响始终是环境资源与生态经济学研究的热点。目前,我国正处在社会主义的初级阶段,经济增长主要依靠投资和对外贸易拉动,该经济发展方式带来了诸多环境问题。本文通过环境质量因素分析,有针对性地提出环境治理的政策建议：倡导有利于可持续发展的经济增长方式、生产方式和消费方式;优化经济结构,按照生态规律组织经济活动;加大环境保护的投资,实施长远而稳定的环境政策。     

影响重庆市外商直接投资的区位因素实证分析

东部和中西部地区吸引外商直接投资的情况有着明显的差异，虽然近年来中西部地区在吸引外资的规模上有扩大的趋势，但在全国的份额仍较低，投资环境的差异是造成这种地区差异性分布的主要原因．目前关于投资区位因素的研究多集中在运用统计数据和区位模型分析．因此在国内外研究的基础上，设计出描述投资区位因素的指标，并通过对已经在重庆市开业的外商直接投资企业进行问卷调查，对调查所得数据进行因子分析，提取了几个主要影响因子，并对指标体系进行了可靠性验证.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…