高校图书馆特色文献资源建设的趋同化特征

目前高校图书馆特色文献资源建设呈现出以学科建设为依据的趋同化特征、攀附效应下的趋同化特征、共同需求目的影响下的趋同化特征、资源建设文化与开发模式的趋同化特征。为逐步消除特色文献资源建设的趋同化特征,建设主题特色鲜明、内容丰富的特色文献资源,高校图书馆应创建特色文献资源共建共享机制,充分发挥特色文献资源的独特价值,提高特色文献资源的利用率。

俄语外来词构成特征和同化特征

俄语外来词借用问题曾一直是词汇学中最矛盾的问题之一。本文着重研究外来词借用的原因、外来词构成特征和同化特征,以及根据同化程度把外来词划分为没有完全本族化的外来词,表示异国风情的外来词和借用外来词。

论外国成年人汉语语音学习同化特征——基于汉语与13种语言语音系统对照分析

教育心理学认为,成人学习外语是运用已掌握的语言知识系统同化目的语语言系统的过程。本文以教育认知同化理论(Assimilation theory)为基础理论,对照分析了汉语与英语、日语、韩语等13种语言的语音系统,描写了外国成年人学习汉语语音的同化特征,借鉴赵元任在《Mandarin Primer》(《国语入门》)创制的语音教学经典模式,提出对外汉语语音教学应划分学习层次、简化教学内容、突出教学重点,并就教授英语母语学习者、日语母语学习者、韩语母语学习者、泰语母语学习者汉语语音做了示例性具体阐释。

试论日本平安文化的同化特征

日本文化的发展过程是对中国文化吸收和同化的过程,在吸收和同化的同时又按照本土文化的发展特点以及风俗习惯进行了改造和创新,使两者成为一个和谐的统一体.本文集中探讨平安时期日本在佛教、文字、书法、绘画等几个方面对中国文化的吸收和同化.

基于“同化性特征数”分析影响铁矿粉同化性的因素

试验采用“同化性特征数”表征铁矿粉的同化性能的方法，综合考虑了同化过程的全部参数，并结合了烧结生产的实际温度，因而具有更高的准确性与操作性.选取10种铁矿粉，配碳量4%，粒径0.3～0．6 mm，运用铁矿粉“同化性特征数”的测定方法，得到各自的同化性特征数，并结合铁矿粉的理化性能分析了铁矿粉同化性能的影响因素，结果发现：不同种类的铁矿粉同化性特征数差别较大，影响因素主要有铁矿粉种类，矿粉化学成分，烧损以及铁矿粉微观形貌等，一般来说，褐铁矿或赤铁矿同化性较好；SiO2对铁矿粉同化性能无明显影响；随着Al2O3与MgO含量的增高，铁矿粉同化性先变大后变小，而上述2种成分含量适中时同化性最强；铁矿粉的同化性与其烧损呈正相关；铁矿粉微观形貌为疏松豆状组织时同化性较强，为致密块状组织时同化性较弱.

测定铁矿粉同化特性新方法的探索

指出目前测定铁矿粉与CaO同化反应方法的优缺点.铁矿粉只有先在界面上熔化形成液相并与CaO形成润湿后,才能进行同化反应形成铁酸钙.通过X射线衍射分析给出了判别铁矿粉与CaO同化反应的始末点等参数的方法,以此为基础建立了以实际烧结生产温度为基准温度且量纲为1的同化反应特征数.该特征数综合了铁矿粉同化反应过程中各种重要信息,如升温速率、同化反应温度和同化反应速度等参数,改进了以往方法不考虑同化反应过程的缺陷,避免了用多个参数表示同化反应过程的不便.

面向电力多模态融合的语义差异性和感知能力差异性分析方法

多模态融合是实现电力系统数字化的重要技术手段,但多模态特征间的差异性限制了融合感知效果。因此,首先对电力多模态数据融合中的语义差异性和感知能力差异性现象进行了深入分析,对差异性产生的特征同化和权重决策问题进行了剖析。然后,针对语义差异性问题,使用角度差对多模态语义差异进行表征,并基于此寻找联合表征空间,实现电力多模态特征同化;其次,针对感知能力差异性问题,使用交叉损失熵对电力多模态感知能力进行表征,并基于此构建权重决策模块,实现多模态特征融合权重计算。最后,以前期所提融合框架为基础,提出了针对多模态差异性问题的高容错性特征融合模型。仿真以输变电线路应急抢修场景为例,基于所提分阶段训练策略进行模型训练,并从融合感知、特征同化以及权重决策机制3个方面验证了所提方法的有效性。

面向多源电力感知终端的异构多参量特征级融合:融合模式、融合框架与场景验证

对多源电力感知终端产生的异构多参量数据进行融合分析,是实现电力物联网下电力目标有效感知的关键。目前,电力多参量融合仍以同构多参量融合和决策级异构多参量融合为主,异构、多源的融合及分析技术薄弱,无法满足电力物联网下的异构多参量深度融合需求。该文提出一种适用于电力结构化时序参量和非结构化图像参量的普适性融合框架,可用于电力对象的描述性、预测性或决策性分析。首先考虑电力时序参量的时间和空间特性,将其转换为适用于非线性混沌系统的递归图,从而使其和非结构化电力图像具有相同的描述空间;然后用卷积神经网络对二类参量进行特征提取,并对特征矩阵按权重进行拼接融合、全连接和目标感知;最后,以输电线路覆冰等级感知和绝缘子污秽等级感知为应用场景,从精确性和容错性角度对所提模型进行分析,验证了所提模型的普适性。

Soil Physical and Chemical Properties of Five Subtropical Forests in Lingao of Hainan

With 5 types of typical forests as research object, the physical and chemical properties of different types of forests were analyzed by sample plot investigation method. The results showed that： the soil total porosity was the highest in the Casuarina equisetifolia forest （46.168%）, but the lowest in the Encalyptus robusta forest （39.46%）. The soil capillary porosity was the highest in the Acacia mangium forest （22.57%）, but the lowest in the secondary forest （18.95%）. The soil water content was the highest in the C. equisetifolia forest, with a mean value of 27.85%, but the lowest in the secondary forest, with a mean value of 4.34%. The soil pH values were in the range of 4.81-6.59, the soils in the A. mangium forest, C. equisetifolia forest and E. robusta forest were strongly acidic （pH 4.5-5.5）, and the soils in the secondary forest and C. nucifera forest were weakly acidic. The soils had organic matter contents in the range of 0.34-28.68 g/kg, and showed an order of A. mangium forest〉C. equisetifolia forest〉E. robusta forest〉secondary forest〉C. nucifera forest, with a decreasing trend with the soil depth increasing. The soil total N contents were in the range of 0.10-1.63 g/kg, the A. mangium forest showed the highest soil total N contents, while the C. nucifera forest exhibited the lowest soil total N contents; the soil total P contents were in the range of 0.21-1.74 g/kg, and the E. robusta forest had the highest soil total P contents; and the soil total K contents were in the range of 0.16-2.15 g/kg, and the A. mangium forest exhibited the highest soil total K contents. The soil available P contents were in the range of 0.98-132.46 mg/kg; and the secondary forests had the highest soil available P contents; and the soil rapidly available K contents were in the range of 3.03-27.35 mg/kg, and the C. nucifera forest exhibited the highest soil rapidly available K contents. The soil ammonium N contents were in the range of 1.38-5.15 mg/kg, and the nitrate N contents were in the range were in the range of 0.56 -3.51 mg/kg. The A. mangium forest showed the highest soil nitrate N contents （with a mean value of 2.29 mg/kg） and ammonium N contents （with a mean value of 3.93 mg/kg）. For the same forest type, with the increase of soil depth, the nitrate nitrogen and ammonium nitrogen content also showed a decreasing trend.

Some issues for discipline of intelligence science

The general frame for the system of intelligence science was proposed, the common features of the researching objects of the intelligence science were summarized. The intelligence science consists of three portions: scientific foundation, technical methodology and application fields. The common features of intelligence science include complexity, intersection, nonlinearity, anthropomorphic property, uncertainty, incompleteness and distribution etc. The new proposed scientific branch would reflect the new height, new thought and new way for developing the control science and intelligent systems from one angle, and present a strong wish for establishing a new branch of intelligence science.

THE EFFECT OF DRAINAGE ON CHEMICALELEMENTS CONTENT OF MARSH

This paper takes marsh in the Sanjiang Plain as an example in order to research the effect of draining on the chemical elements in marsh. The Sanjiang Ecological Test Station of Mire and Uetland serves as the resarch base. The authors selected soil samples in the Sanjiang Plain (the top and the end of the drain, marsh soil and degeneration marsh soil), mainly analyzed contents of main ions (HCO 3 ? , Cl?, SO 4 2? and NO 3 ? ), main heavy metals (Fe, Mn, Zn and Cu), nutritive elements (N, P, K), organic matter and pH value. By testing these samples as above, the paper initially researches the effect on chemical elements content by draining by the means of the contrast of chemical elements contents between marsh soil and degenerative marsh soil and different characteristics of marsh soil elements. Results show that a lot of chemical elements had been lost because of draining.

Application of isotopic and hydro-geochemical methods in identifying sources of mine inrushing water

Isotopic and hydro-geochemical surveys were carried out to identify the source of mine inrushing water at the #73003 face in the Laohutai Mine. Based on the analysis of isotopes and hydro-chemical features of surface water, groundwater from different levels and the inrushing water, a special relationship between water at the #73003 face and cretaceous water has been found. The results show that the isotopic and hydro-chemical features of the inrushing water are completely different from those of other groundwater bodies, except for the cretaceous water. The isotopic and hydrochemical characteristics of cretaceous water are similar to the inrushing water of the #73003 face, which aided with obtaining the evidence for the possible source of the inrushing water at the #73003 face. The isotope calculations show that the inrushing water at the #73003 face is a mixture of cretaceous water and Quaternary water. Water from the cretaceous conglomerate is the main source, accounting for 67% of the inrushing water, while the Quaternary water accounts for 33%. The conclusion is also supported by a study of inrushing-water channels and an active fault near the inrushin^-water plot on the #73003 face.

Relationship of hydrocarbon and source-rock in Nos.3-5 tectonic belts of the Lenghu area,northern Qaidam Basin

Based on analyses of the components of crude oil hydrocarbons and carbon isotopes,the content of normal alkane decreased from 49.00% to 20.10% when moving from the No.3 to No.5 tectonic belt of the Lenghu area of the Qaidam Basin,while cycloalkanes increased from 30.00% to 52.20% and aromatic and branch chain alkanes increased gradually as well. The maturity of sterane in crude oil is higher than that of its source-rock,which shows that the hydrocarbons were generated from a deep source-rock of high maturity around the tectonic belts of the Lenghu area. The analysis of the characteristics of carbon isotopes also shows that these isotopes of hydrocarbon compounds in the No.4 and No.5 tectonic belt are apparently heavier than those in the No.3 belt. The results of our research show that the hydrocarbons in the No.3 tectonic belt are mainly from a relatively rich sapropelic substance,while the hydrocarbons in the No.4 and No.5 tectonic belt originated mainly from organic matter of a relatively rich humic type substance.

Isotopic and Chemical Characteristics of Lagoon Waters in Niigata Prefecture, Japan

In order to investigate the isotopic and chemical characteristics of lagoon waters in Niigata Prefecture in recent years, oxygen and hydrogen stable isotope ratios （i.e., 8180 and 6D）, the concentrations of DOC （dissolved organic carbon）, DO （dissolved oxygen） and pH, etc. in water samples of Sakata and Toyanogata were measured. Samples were generally taken monthly at the fixed sampling points from these lagoons. Consequently, the following matters have been mainly clarified： （1） ~D value of water samples in Sakata was generally larger than that in Toyanogata similarly to the case of ~180, though remarkable large difference among samples was not found; （2） the pH value of lagoon water samples is almost 6.5-8.5 （which is generally larger than that of river water）, and pH at the spot of SI （downstream point of Lower Lagoon （Shitakata）） is remarkably high （9.0-9.5）; （3） Lagoon water has the chemical characteristics contrasting to groundwater with a focus on river water from the viewpoint of pH （acidity or alkalinity） and DO. These matters can be closely related to the biological activity such as photosynthesis due to aquatic plant and phytoplankton and the activity of Crustacea plankton etc. in lagoon.

Diagenesis tectonic setting and U-Pb dating for zircon from Tanjianshan Group in northern margin of Qaidam Basin

The shape,texture,content and REE characteristics of zircons from the O2tnd-1,O3tnd-2,O3tnd-3pyroclastic rock of Tanjianshan Group on the north margin of Qaidam Basin indicate that the O2-3tndis the product of volcanism during the transitional period from ocean-land interim crust to oceanic crust.The U-Pb surface ages obtained from O3tnd-2and O3tnd-3can be divided into 9 groups,every age group coincides with the period when significant tectonic-heat event took place at Oulongbuluke micro-continental base of northern Qaidam,suggesting that the base rocks have provided materials for the formation of sedimentary and volcanic rock in O2-3tnd.The volcanic rocks of O3tnd-3formed at 440 Ma,with time gap 46 Ma to those of O1tna-1and O3tnd-3may represent the minor period that Xitieshan back-arc extension have lasted,the scale of back-arc basin that formed in Xitieshan extension may approach to 1 400 km.Based on the test of ithochemistry data for major elements and analysis of Sr isotope geochemistry for the clastic sedimentary rock in O1tna-2and O3tnd-2,the authors get the conclusion that the O1tna-2and O3tnd-2of Tanjianshan Group may form in back-arc basin environment,while the lithology difference between these two formations may reflect the changes of geodynamic processes as the diagenesis tectonic environment transformed from continental margin depression to adjacent sea basin.

基于铁矿粉的高温性能特征数指导烧结配矿

为了指导烧结生产配矿,利用高温性能特征数对铁矿粉的高温性能进行研究。铁矿粉的高温性能特征数结合了烧结过程的各种信息参数,从而能够更加准确、全面地表征烧结铁矿粉的高温基础特性。在对7种单一矿粉进行实验分析的基础上,按照其高温性能差异,将混合矿粉中的等性能矿粉进行置换,分析置换前后混合矿的高温性能变化,并通过工业实验,验证置换前后烧结矿的质量波动。实验结果表明,在一定比例范围内,等性能矿粉置换,混合矿粉高温性能特征数变化不大,高温性能稳定,生产出烧结矿转鼓强度保持在稳定水平,质量满足高炉生产要求。可用于指导烧结配矿,为实际烧结生产提供参考依据。

Geochronology, geochemistry, and its geological significance of the Permian Mandula mafic rocks in Damaoqi, Inner Mongolia

The Hujierte-Chaganhadamiao volcanic-plutonic sequence is located in the Mandula area of northen Damaoqi, Inner Mongo- lia. It contains mainly mafic volcanics, with several ultramafic blocks in its central part and mafic- ntermediate intrusions in the east. The zircon U-Pb ages of the gabbro and basalt samples are 278.5±3.0 Ma （MSWD=）.66） and 273.7±1.0 Ma （MSWD=0.36）, respectively. These ages constrain the magmatism occurred in the Early Permian. The Mandula Permian mafic rocks are characterized by low abundances of REE and slightly LREE-enriched chondrite-normal zed N-MORB-type REE patterns. And these mafic samples have high （143Nd/144Nd）i （0.51262-0.51270）, relatively high pos tive εNd（t） （3.4-8.0）, and high Mg# （49-54）, suggesting derivation from the depleted asthenosphere mantle source. But they al, show the enrichment in large ion lithophile elements （LILE, e.g. Rb, Ba and Sr）, depletion in high field strength elements （I-FSE）; distinctly negative Nb, Ta anomalies and slightly negative P, Ti anomalies; high （875r/86Sr）i （0.70490-0.70537）, low （206pb/204pb）i （17.39-17.93）. All of these resemble the characteristics of the enriched mantle source or involvement of arc materials in the magma genesis. Furthermore, as shown in the correlation plots of eNd（t） VS （87Sr/86Sr）i, （206pb/204Pb）ivs （207pb/204Pb）i and （208pb/204pb）i, La/Ba La/Nb vs La/Nb, and La/Nb ratio, the magma source could have been experienced the contamination and metasomation from the previous subduction process. And the positive correlation between the selected major oxides and trace elements could be explained by the contamination from continental crust and arc materials during the magmatic emplacement. Combined with the distinct geochemistry features of Mandula mafic samples and many previous researches in the study area, the Early Permian magmatism in Mandula occurred under an extensional rift setting, and a juvenile ocean basin probably had already been formed after further development.

Seasonal Variations of Hydrochemical Characteristics of Groundwater in Changping Plain, Beijing

Changping Plain, located in the northwest of Beijing, has become an important groundwater recharge area for the Beijing Plain and an important source for the urban water supply. In this study, groundwater samples were collected during the dry and wet seasons in 2015 from 24 monitoring wells distributed in Changping Plain. A Piper-Tri-linear diagram, a Schoeller diagram, a Gibbs diagram, and the isotope technique were used to investigate the temporal and spatial variations in the concentrations of groundwater hydrochemicals and the sources of groundwater recharge. The results indicated： 1） seasonal variations in the concentrations of HCO3^–, Ca^2＋, and Na^＋ were significant; the spatial variations of these ions were more dramatic in the dry season than in the wet season due to the dilution effect of precipitation; 2） Most groundwater samples had a HCO3-Ca-Mg based hydrochemical type and a few had a HCO3-Na-K based hydrochemical type; the hydrochemical type tended to evolve from HCO3-Ca-Mg based to HCO3-Na-K based in some monitoring wells that showed distinct seasonal variation; 3） the groundwater in the study area originated mainly from atmospheric precipitation, and it is affected by evaporation and concentration processes.