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1.
从将淮安市所拥有的资源优势转化为经济优势的角度,对淮安市盐化工产业发展情况进行分析,顺应国内外盐化工产业发展潮流,提出了淮安市正在重点建设的盐化学工业园的产业定位。  相似文献   

2.
通过加权山地交通可达性,优化了拉萨市旅游资源优势度模型,将2009、2014、2019年旅游资源优势度数据分别与当年的区域经济发展水平演变情况进行了耦合分析,以探索旅游发展的空间格局优化方式。结果表明:山地交通可达性影响着游客的旅游目的地的选择,交通节点和干线周边的乡镇旅游优势度明显提升;2009~2019年拉萨市旅游资源优势度变化幅度较小,但县域经济发展差距拉大,形成“强周边弱核心式”经济发展格局;2009~2019年拉萨市旅游资源优势度与经济发展水平呈负向相关,旅游资源优势乡镇过度依赖外部经济,本地产业发展受到制约陷入“资源诅咒”,旅游资源弱势城镇在离开投资驱动后沦为人口、资源流出区,形成“贫困陷阱”。  相似文献   

3.
本文论述了化工产物磷石膏的产生.成分及其杂质对于应用领域的限制,并简单分析了我国当前磷石膏综合利用的产业布局,分析了磷石膏在应用发展中存在的问题并提出了展望。按照低碳,环保、节能,可持续的发展目标真正实现磷资泺的大规模综合利用才是当前以及今后很长一段时间内从事磷石膏综合利用研究的科研人员和产业人员努力的方向。  相似文献   

4.
如何依托本地资源优势,加速发展文化旅游经济,是南澳县经济、社会发展的重大课题。现就南澳县发挥文化旅游资源优势,促进文化旅游产业的发展等有关问题分述如下:  相似文献   

5.
文章利用区域经济理论对达州市的资源特征、产业构成、区位特点进行了分析,根据达州市的区域优势,进一步阐述了其战略发展的新思路,即:一是优先发展集约型农业及其加工工业,延伸产品链;二是充分利用日渐凸现的交通枢纽优势,建立现代化的商贸物资集散中心和打造特色旅游产品;三是调整传统工业结构,着力开发有区域资源优势支撑的能源、盐化工、建材、制药、酿造等产业。  相似文献   

6.
本文对黔南州磷化工产业发展优势、现状及存在问题进行了综述。提出强强联合、以强出新、实施战略性结构调整,促进优化产业升级的意见。依托瓮福矿肥基地,配套发展,尽快建成60万吨/年磷铵,扩大黔南州五钠厂“三聚磷酸钠”产品规模,增加出口创汇,发展磷酸盐添加剂产品,以名牌带动,增加出口粒状、砂状钙镁磷肥等措施和对策。拟尽快建成全国重要的磷化工业基地。  相似文献   

7.
通过介绍山西精细化工产业的发展现状,对当前的精细化工产业进行了优劣势分析。提出了山西发展精细化工必须发挥自身资源优势,加强产学研合作,强化产业集聚,走绿色、低碳发展道路,示范、引领全省的资源型经济转型。  相似文献   

8.
重点阐述贵州省磷化工的发展现状以及当前所面临的主要问题,并提出了发展磷化工的总体布局。  相似文献   

9.
分析、研究贵阳市磷化工工业循环经济发展现状及国内外同行业循环经济发展动态与趋势、拟定贵阳市磷化工工业循环经济总体发展目标及实施步骤,并从企业、区域两个层面以及技术经济、资金、体制、政策层次上,为贵阳市磷化工工业循环经济的快速发展提出对策与建议。  相似文献   

10.
<正>榆林作为我国重要的能源化工基地,拥有丰富的煤炭资源和众多煤化工企业,煤化工产业作为我市乃至全省重点培育发展的支柱产业之一,对拉动全省经济持续快速增长、促进工业结构优化升级发挥着极其重要的作用。一、产业现状一是围绕"三个转化",产业集群初步形成。经过多年的发展,依托丰富的资源优势,围绕省委省政府制定的"三个转化"发展战略,初步形  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
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.  相似文献   

14.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
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。  相似文献   

19.
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.  相似文献   

20.
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.  相似文献   

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