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1.
南宁市垃圾处理设施环境监测现状及存在问题浅析   总被引:1,自引:1,他引:0  
主要介绍了南宁市垃圾处理设施环境监测现况,指出了目前存在的主要问题,并作了较全面的分析,提出了解决南宁市垃圾处理设施监测问题的方法及途径.  相似文献   

2.
如何经济、有效地进行生活垃圾处理是每一个环保科技工作者和国家政府相关领导者经常思索的一个问题,生活垃圾处理的有效方法之一是应用焚烧炉。本文简要阐述了生活垃圾处理现状及焚烧炉应用情况,主要分析了生活垃圾焚烧炉应用前对生活垃圾进行分类收集、熟化脱水的重要性和焚烧炉应用条件改变后给生活垃圾处理带来的好处。  相似文献   

3.
通过问卷调查获得了兰州市居民对生活垃圾处理收费认知度数据,运用SPSS(Statistical Packagef Or the Social Science)社会科学统计软件包对数据整理和分析,得出以下结论:兰州市居民对于生活垃圾处理收费的认知度低于国内发达城市水平。同时对认知度调查中选项的影响因子做了相关性分析和讨论,据此提出了兰州市生活垃圾处理收费的建议。研究认为,制定生活垃圾处理收费细则,尽快实施生活垃圾处理收费制度,对我国生活垃圾的减量化和资源化具有重要意义。  相似文献   

4.
包红 《科技信息》2013,(15):435-436
本文综述了迄今为止我国城市生活垃圾处理技术的现状,重点介绍了几种垃圾处理方法的现状以及存在问题,简述了我国城市生活垃圾处理技术的发展趋势。  相似文献   

5.
韩辉 《科技咨询导报》2011,(31):205-205,207
随着我国城镇化的不断加快,城市生活垃圾产生的越来越多,城市生活垃圾处理逐渐提上日程,但是需要耗费许多人力、物力和财力,采取何种标准收费将直接影响到垃圾处理的效果。本文通过对目前几种城市生活垃圾收费标准的比较,结合我国部分城市对城市生活垃圾处理收费的做法,提出当前比较可行的收费标准就是采用与居民用水挂钩,根据居民用水量的多少按一定比例征收城市生活垃圾处理费。  相似文献   

6.
关于社会主义新农村生活垃圾治理和新农村建设探讨   总被引:1,自引:0,他引:1  
我省农村环境卫生状况令人堪忧。本文论述了我省农村生活垃圾处理状况,探讨了农村生活垃圾处理技术和管理措施,指出综合处置是农村生活垃圾处置的发展方向。  相似文献   

7.
介绍了山西省城镇生活垃圾的特点,阐述了这些垃圾的处理现状及存在问题,探讨了生活垃圾处理技术的选择,提出了适合山西省城镇生活垃圾处理的技术。  相似文献   

8.
淮南市城市生活垃圾现状和处理对策探讨   总被引:1,自引:0,他引:1  
通过对淮南市城市生活垃圾处理现状的调查,分析了淮南市城市生活垃圾处理过程中存在的诸多问题,指出淮南市生活垃圾的收运和处理模式单一,对城市环境建设及人们的生活造成严重的危害。因此,提出若干处理对策以解决目前所存在的问题,并主要分析了适合淮南市生活垃圾处理的方法为分选回收和剩余物填埋,供相关部门参考。  相似文献   

9.
我国目前的垃圾处理问题比较突出,城市化进程不断加快,垃圾产量也持续增加,而垃圾处理末端环节的技术有待提高,垃圾的减量化、资源化、无害化没有做好。根据我国目前垃圾处理技术,该文从垃圾处理的末端环节出发,探讨了怎样破解我国城市生活垃圾处理难题。分别从垃圾处理技术和模式两方面给出了对策。  相似文献   

10.
以合肥市城区生活垃圾为例,介绍了生活垃圾年产量和组成成分的变化趋势,分析了合肥市目前生活垃圾的收运和处理处置过程中存在的问题,提出了整改的相关建议和措施.在对合肥市城市生活垃圾处理现状调查研究的基础上,对当前国内各种生活垃圾处理方案做了对比分析,指出"卫生填埋+焚烧"是适合目前合肥市具体情况的垃圾处理方案.  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 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   

13.
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   

14.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

15.
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   

16.
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   

17.
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.  相似文献   

18.
本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。  相似文献   

19.
In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.  相似文献   

20.
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