大连港香炉礁航道通航安全论证

为了对大型船舶进出大连港香炉礁航道及出坞船旋回掉头靠泊作业进行船舶操纵方案论证及船舶通航安全评估，应用日本MMG分离建模方法，建立了大型船舶操纵运动的仿真模型，给出了电子海图中相关的坐标转换算法．在此基础上，应用大连海事大学船舶操纵模拟器进行了实时动态仿真并给出了拖船使用数量的实用估算方法．仿真的结果比较可靠，对船长、引航员具有重要的参考加值，也为港方对港口建设及大型船舶靠泊问题进行决策提供了科学的依据．     

大型船舶进靠莱州港10号泊位操纵要点

引领大型船舶进港靠泊，需要综合考虑各方面因素才能确保引航安全。该文就大型船舶操纵，风流影响、拖轮配置，船速控制．转向时机等要点问题进行了分析，并根据引航实践经验和相关理论知识，针对性地提出了应对措施。     

浅谈中小型船舶靠离泊的特点

分析狭水道、岸壁效应对船舶操纵影响及其操纵过程中应注意的问题,总结中小型船舶近岸航行、靠泊、锚泊的操纵特点及注意事项.     

负角度靠泊在船舶靠泊操纵中的应用

驾引人员常在船舶靠泊操纵中需要微顺流靠泊或者在大角度轧拢流、强吹拢风等自然条件不利的情况下进行靠泊.要实现在上述条件下的安全、顺利靠泊,有时候需要用到负角度靠泊方法.本文介绍了负角度的概念,负角度靠泊的使用时机、操作方法和注意事项.     

浅析船舶通航安全的影响因素(英文)

简要分析影响船舶安全航行的主要因素 ,即船舶自身的操纵性能 ,与航行相关的环境条件以及驾驶员熟练操作程度、心理素质等 .重点研究大型船舶操纵性能 ,并在计算机上将船舶操纵模拟器船舶模型库中的多种船模 ,进行离线仿真测试 ,同时运用IMO操纵性衡准 ,来验证船模的操纵性能 .结果显示 ,符合IMO提出的操纵性衡准 .最后提出船舶安全航行的注意事项 ,给出几点可行性建议     

港口航道和码头通航安全评估

为了满足对福建液化天然气站线10万t级液化天然气船舶码头工程通航安全评估需求,就通航安全评估工作中的船舶操纵模拟器运用、船舶运动数学模型的建立、电子海图和码头CAD数据转换及叠加、虚拟通航环境生成、评估仿真模拟试验方案的设计与实施以及船舶航迹带生成系统等关键技术问题进行简要的论述.且运用大型船舶操纵模拟器和船舶航迹带生成系统,对10万t级液化天然气船舶的航行安全问题进行仿真模拟,并对模拟仿真结果进行分析评价,进而提出通航安全方面的合理化建议.     

狭水道内大型船舶操纵安全评价方法

为了适应船舶大型化的发展和提高船舶进行出港的效率,通过对影响船舶操纵安全的各因素的分析,设定了评价操纵安全的指标,通过计算机模拟和专家调查得出各指标值。然后把隐患指标和风险指标结合起来考虑,运用模糊综合评价方法,设计出一种科学、实用的动态综合评介狭水道内船舶操纵安全的方法。     

基于模拟实验数据的靠泊风险指标确权方法

为了提高风险指标权重的客观性,使风险评价结果更加真实,提出一种以实验数据来确定船舶靠泊风险指标权重的方法。以厦门东渡港区1#、2#泊位邮轮靠泊风险评估为例,对模拟操纵实验数据进行统计分析,引入变异系数法,并采用逆向思维的方法确定风险指标的权重。该方法消除了指标确权中的人为因素,对模拟实验数据的分析与应用具有一定意义。     

引航员船舶操纵评估题型的设计与运用

本文从分析三级引航员船舶操纵评估大纲入手,提出三级引航员船舶操纵评估题型的设计方案,并应用信度理论分析法对方案的可信度进行论证,运用大型船舶操纵模拟器对引航员船舶操纵评估项目予以实践与佐证。     

多艘拖轮协助大型船舶靠泊的编队控制方法

为了研究多艘拖轮协助欠驱动大型船舶靠泊的控制,提出了一种采用拖轮编队来解决大型船舶靠泊问题的控制方法.在拖轮的水动力学模型中,将大型船舶对拖轮的反作用力视为未知输入,给出了一种干扰估计误差方程和原状态方程形成互联系统的干扰观测器.该干扰观测器使得拖轮速度实际值与期望值误差能够快速收敛.在干扰观测器的基础上给出了拖轮编队控制器设计,并分析了闭环系统的稳定性.仿真结果验证了该方法的有效性.     

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.