新型垂直筛板的研究

指出了新型垂直筛板(New VST)帽罩底隙对塔板性能的影响。并通过实验得出当(?)′=0.06时,该塔板具有低压降,高传质效率,较宽操作弹性和较大的处理能力。     

航空发动机进口帽罩结/防冰特性试验研究

航空发动机进口帽罩作为发动机重要的进口部件,防冰能力关乎发动机性能甚至影响飞行安全。为了研究航空发动机进口帽罩防冰性能,通过冰风洞对进口帽罩进行结/防冰试验,得到了进口帽罩表面结冰状况随热气流量、来流温度、来流风速的影响规律。试验结果表明：进口帽罩防冰能力从尖锥头部到帽罩后端逐渐增强;帽罩防冰能力随热气流量增加而提升;帽罩表面冰型随来流温度、来流风速变化而发生改变;帽罩表面结冰区域随风速增加而扩大。研究成果可以为进口帽罩防冰系统设计和验证提供重要指导。     

导向立体喷射复合塔板的流体力学及传质性能研究

设计了一种低压降、大通量、高传质效率的导向立体喷射复合塔板（FVJT）,在直径为800 mm的圆形塔内进行冷模实验,测得FVJT的干、湿板压降,雾沫夹带率,漏液率,清液层高度等流体力学数据,并通过富氧水解析实验分析塔板的传质性能;最后,根据干、湿板压降数据拟合得到压降关联式。对比研究了3种不同立体帽罩倾角对塔板性能的影响,结果表明：与新型垂直筛板（New VST）和F1浮阀塔板相比,本文所设计的FVJT干、湿板压降分别降低约20%~30%和10%~20%,传质效率提高了13%~17%,其中立体帽罩倾斜角为6°时传质效率最高。     

导向立体喷射复合塔板的流体力学及传质性能研究

设计了一种低压降、大通量、高传质效率的导向立体喷射复合塔板（FVJT）,在直径为800 mm的圆形塔内进行冷模实验,测得FVJT的干、湿板压降,雾沫夹带率,漏液率,清液层高度等流体力学数据,并通过富氧水解析实验分析塔板的传质性能;最后,根据干、湿板压降数据拟合得到压降关联式。对比研究了3种不同立体帽罩倾角对塔板性能的影响,结果表明：与新型垂直筛板（New VST）和F1浮阀塔板相比,本文所设计的FVJT干、湿板压降分别降低约20%~30%和10%~20%,传质效率提高了13%~17%,其中立体帽罩倾斜角为6°时传质效率最高。     

彩色涂料印花色浆罩印性能的研究

介绍了涂料印花罩印助剂的制备和应用，通过对涂料罩印浆的物理化学性能的研究，探讨了提高罩印效果的途径及罩印助剂颗粒的物理化学性质对罩印效果的影响。     

组合式角钢塔板的性能研究

在５００ｍｍ×３００ｍｍ的矩形有机玻璃实验塔中，用水－空气体系对组合式角钢塔板的流体力学性能及传质性能进行实验研究，并以筛孔塔板作对比实验。结果表明组合式角钢塔板是一种结构简单，压降低，压降低，操作弹性宽，处理能力大和板效率较高的新型塔板。     

喷砂回收实验系统设计及试验研究

针对在喷砂除锈或进行清理工作时造成的环境污染情况，设计了一种气吸式喷砂回收系统。设计了两种不同形状和不同尺寸的回收罩进行试验研究，得到了两种不同的实验结果，经过对实验结果的分析，找出了保证有效回收的方法，给出了回收罩尺寸的设计范围，为喷砂真空回收系统的设计提供了依据。     

导向梯形喷射填料式塔板的流体力学与传质性能研究

结合导向孔、填料和立体塔板的优点,设计了一种导向梯形喷射填料式塔板（FTS-PT）,在直径为500 mm的有机玻璃塔内采用空气-水-氧气物系进行冷模实验,分别测定了4种梯形角度实验塔板的流体力学性能（包括干、湿板压降,清液层高度,漏液,雾沫夹带）和传质效率。根据实验数据拟合得到FTS-PT塔板的干、湿板压降关联式。与新型垂直筛板和F1浮阀塔板相比,FTS-PT塔板压降较低。综合比较4种角度的导向梯形喷射填料式塔板的流体力学性能和传质效率,结果表明当梯形帽罩倾斜角度为8°时,塔板综合性能最好。     

电热毛细管材料消融中蒸气罩的研究

在高热流条件下电热毛细管材料的消融过程中，会形成壁面蒸气罩效应，这种等离子体壁面蒸气罩特性对消融控制电弧发生器的工作性能非常关键。该文建立了蒸气罩的理论计算模型，同时应用等离子体发生器一维瞬态模型进行计算比较。计算表明，该文所建模型及计算方法基本能正确反映毛细管材料消融中的蒸气罩效应，并得到了实验的证实。     

半自动汽车防晒罩设计说明

目前随着经济的不断发展，家用轿车的普及率越来越高，随之的汽车防晒罩类的产品也是越来越丰富。但是传统的防暗罩使用不方便，隔热效果不是特别突出。对此，我们本项作品半自动汽车防晒罩，一种将取出、存放与保险连为一体，利用磁条固定防晒革边缘，并带有可伸缩支架的汽车防晒罩。包括带有磁条的汽车防晒罩主体，防晒罩保险装置，防晒罩主支架及辅助支架。其特征是2保险装置位于汽车后备箱中，防晒罩边缘装有磁条，防晒罩撑开后有支架令防晒罩内产生一个空气隔层，增强隔热效果。其有方便快捷，存放空间小，适用范围广，防晒效果好的优点，并在一定程度上节约资源，节能环保。适用于各种车型。     

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.     

Features of Women's language

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.     

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.     

A computer generator for randomly layered structures

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

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.