科技型中小企业发展的金融支持问题研究

科技型中小企业的发展离不开金融的支持。针对科技型中小企业的融资特点和我国科技型中小企业的融资现状,通过借鉴国际经验,从加强政府支持、完善风险投资机制、加大商业银行支持和建立多层次资本市场这四个方面论述了如何构建科技型中小企业的金融支持体系。     

中小企业技术创新金融支持体系中外比较研究

从分析我国中小企业技术创新金融支持的现状出发,在借鉴国外中小企业技术创新金融支持体系经验的基础上,提出构建我国中小企业技术创新的金融支持体系的建议。     

科技型中小企业全生命周期金融支持研究——基于风险特征的分析视角

基于科技型中小企业生命周期各阶段技术创新特点,融资需求和风险特征,分析金融支持方式的风险偏好。发现科技型中小企业金融支持体系各融资渠道存在的问题,并结合我国现阶段科技金融的发展现状,给出完善金融支持体系的政策建议。     

中小企业信用担保问题研究

融资困难是目前制约我国中小企业发展普遍存在的突出问题.帮助中小企业走出融资困境的关键是要深化金融体制改革,完善金融市场体系,建立健全中小企业融资体系,其中的重点环节是建立中小企业信用担保体系.文章从中小企业信用担保体系的现状入手,分析了目前中小企业信用提保业发展中存在的问题与潜在的风险,并从目标分析、风险防范、金融协作、法律规范等方面提出若干对策建议.     

风险投资和创业板市场是解决中小企业融资难的关键

中小企业是现代企业体系的重要组成部分,中小企业的发展,除了金融政策和措施的支持外,应以发展直接融资为主,大力发展风险投资,是解决中小企业融资问题的根本出路。建立创业板市场,是完善风险投资体系,为中小高科技企业提供直接融资服务的重要一环。推出中小企业板市场是中国分步推出创业板市场的第一步。     

宜昌市中小企业发展与金融支持问题研究

由于各方面的原因，目前宜昌市中小企业发展与金融支持存在的主要问题与障碍是资金不足且借贷难和金融服务滞后。因此，必须努力构建全方位、多层次的中小企业发展与金融支持体系。     

恩施州金融信贷机构支持涉农中小企业发展调查研究

为了研究金融机构支持涉农中小企业金融信贷的影响因素以及可得性影响因素,根据恩施州涉农中小企业金融信贷问卷调查,以社会再生产理论为基础,建立了二元Logistic回归模型和Tobit模型,认为要提高金融信贷机构支持涉农中小企业贷款可得性程度,需从3个方面进行改进:金融机构应尽快建立企业信贷评级系统、中小企业提升自身财务状况、相关政府需要建立激励机制.     

科技部将从六方面促进科技型中小企业发展

据悉,科技部将从6方面促进科技型中小企业发展：①推进科技与金融的结合。在创业投资、科技信贷、资本市场、科技保险等方面不断创新模式,推进科技和金融的结合试点来建立多元化、多层次、多渠道的科技投融资体系。②加大对中小企业产品研发的支持力度。切实发挥好国家科技计划对科技型中小企业的扶持作用,火炬计划、星火计划、惠民计划、中小企业创新基金、科技成果转化基金要对科技型中小企业的研发、     

我国中小企业技术创新支持体系研究

中小企业在国家创新体系中具有独特的地位,是创新的重要力量,创新型国家的建设离不开占企业总数99%的中小企业的技术创新。由于中小企业技术创新的特殊性决定其在创新过程中必须得到金融、财税、法律和社会服务等方面的支持。然而,我国中小企业技术创新支持体系存在着诸多的不足,必须借鉴国际经验,采取积极的措施加以完善。     

数字金融对中小企业技术创新的影响研究——基于财务杠杆路径

为探究数字金融对中小企业的创新驱动效应及其影响机制,基于2012—2021年新三板上市企业数据进行实证分析。研究结果表明,数字金融发展显著支持中小企业技术创新;机制检验结果证实数字金融能够通过提高企业财务杠杆为中小企业技术创新活动提供资金支持,财务杠杆与企业技术创新之间呈现倒U型关系;异质性分析结果表明,数字金融具有支持企业创新发展的靶向效应,创新驱动效应对于小企业和非国有企业表现更显著。     

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.     

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.     

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。     

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…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the