期刊作者与编辑应增强著作权保护意识

目前期刊领域违反著作权法的情况仍较普遍。从期刊作者方面来说，主要有署名不规范、引用不当及一稿多投等；从期刊编辑方面来说，主要有修改不当、不按稿约要求处理来稿和少发或不发作者稿酬等。期刊作者与编辑都应加强学习著作权法中的有关法律法规，进一步增强著作权保护意识，维护自身利益。     

提高数字资源使用率的探讨

本文以作者自身的实际工作着手，对如何提高数字资源的使用效率，与大家一起进行初步的探讨     

论译者阐释原文文本的多维度性与主体性

理解是翻译的基石，文本意义的实现，既离不开文本自身，也离不开作者的意图与读者的阐释。理解不是消极的阐释，而是文本和译者之间的“视界融合”。译者是翻译的主体，是原文文本和作者与译文读者之间的协调者。本文从分析作者意图、文本意图和读者意图的关系入手，论述了译者对原文文本阐释的多维度性与主体性。     

对于提高科技期刊编辑工作质量的探讨

科技期刊编辑工作质量直接决定期刊质量。为了提高科技期刊编辑工作质量，在不断提高编辑人员自身专业能力和业务知识水平的同时，应当加强与作者的沟通，做好退修工作，保证论文的技术水平，并给予作者人文关怀，引导作者提高科技论文的写作水平，从整体上提高科技论文的内在质量和外在质量，促进科技期刊学术进步。     

浅谈如何活跃大学英语课堂气氛

大学英语在轻松、愉快、活跃的课堂气氛中进行，是提高课堂效益的一项重要保证。作者根据自身的教学实践，提出了活跃课堂气氛的措施，旨在完善课堂语言环境，提高教学效果。     

高职院校科研管理工作体会

科研管理质量直接影响科研工作发展水平和速度，作者基于自身高职院校科研管理工作的实践，发现科研管理工作中存在的常见问题，并提出相应对策。     

三种多媒体课件的制作平台及其特点

根据作者自身教学与制作课件的实践情况，阐述演示型、互动型、自学型三种多媒体课件的制作平台、表现形式和优缺点。     

明清才子佳人小说的科举情结

才子佳人小说是产生于明末清初的小说流派，这些小说中彰显了浓重的科举情结。这种情结是明清科举社会在文学中的直接反映。这批小说的作者多为郡郁不得志的中下层文人，他们多半是科场的失利者；而小说描写的对象——才子，却都是少年进学的英俊。在这一对矛盾中，彰显着小说作者自身对科举的痴迷、对功名的向往；也彰显着小说作者的理想——在才子的风流倜傥、少年得志中寄托自己的黄粱美梦。     

《灶神之妻》中母女关系的文化解析

以关籍华裔女作家谭恩关的《灶神之妻》为分析文本，探讨了作品中母女关系所体现的文化内涵，进而分析作者作为少数族裔女作家面临着美国的强势文化，如何构建自身的文化身份。作者在小说中以个人的经历为素材，不仅在母女关系的基础上建构了一个颠覆父权制的女性世界，还把母女关系提升到两种异质文化的冲突与融合的层面上来。谭恩关在母女关系的主题中表现了性别的不平等以及文化的冲突，积极寻求自身的文化身份。     

英语语音学习中的常误现象及纠正方法

近年来，英语教学逐渐趋向听说教学，而语音是听说的基础。作为未来中学英语教师的师专英语系学生，学习语音非常重要，但在学习语音过程中会碰到许多困难。作者就学生中出现的语音常误现象作了归纳分析，提出了纠正方法，同时，作者就英语语音教学谈了自身的体会，并提出一些建议。     

四元数矩阵方程AXB+CXD=E的M自共轭解

把实数域上的M对称矩阵的概念推广到四元数体上,形成M自共轭矩阵,然后在四元数体上讨论矩阵方程AXB+CXD=E的M自共轭解及其最佳逼近问题.利用四元数矩阵的实分解和复分解,以及M自共轭矩阵的特征结构,借助Kronecker积把约束四元数矩阵方程转化为实数域上的无约束方程,克服了四元数乘法非交换运算的困难,并得到该方程具有M自共轭解的充要条件及其通解表达式.同时在解集非空的条件下,运用矩阵的分块技术及矩阵的拉直算子,获得与预先给定的四元数矩阵有极小Frobenius范数的最佳逼近解.由于M自共轭矩阵是四元数自共轭矩阵的推广,因此所得结果拓展了该方程的结构解类型.     

Surface interactions of MoO3/ α-Fe2O3 system

α-Fe₂O₃ -supported molybdena catalysts have been prepared by heating a mixture of MoO₃ and α-Fe₂O₃. XRD, XPS, LRS, TG-DTA and Mössbauer spectroscopy were used to characterize the interactions between MoO₃ and α-Fe₂O₃. The dispersion capacity of MoO₃ on the surface of α-Fe₂O₃ determined by XRD and XPS was 0.8 mmol/100m² α-Fe₂O₃ in the samples calcined at 420 . For the sample with low MoO₃ loading, LRS and FT-IR results showed that Mo⁶⁺ ions were located in the tetrahedral vacant sites on the surface of α-Fe₂O₃, signed as Mo- . The amount of Mo-II species, formed by Mo6+ ions incorporated into the octahedral vacant sites, increased with the MoO₃ loading. Based on the assumption that the (001) plane of α-Fe₂O₃ is preferentially exposed, almost all the Mo⁶⁺ ions of the dispersed molybdena species existed at the surface octahedral sites for the sample with MoO₃ loading close or beyond the dispersion capacity, and formed the Mo-II species. In this case, the capping O^2- ions linking with the incorporated Mo⁶⁺ ions formed a surface epitaxial structure, which was in good agreement with the results predicted by the incorporation model proposed previously. XRD and Mössbauer spectroscopy of the MoO₃ α-Fe₂O₃ samples calcined at different temperatures showed that the calcination temperature could strongly influence the interaction extent: ( i) at 420 , MoO₃ dispersed on the surface of α-Fe₂O₃ and formed surface Mo species; (ii ) at 500 , MoO₃ reacted with the bulk of α-Fe₂O₃ and formed Fe₂(MoO₄)₃ compound.     

Selective catalytic reduction of NO x by hydrogen over modified Pd/TiO2-Al2O3 catalyst under lean-burn conditions

A series of Ni, Sn and Ca modified Pd/TiO2-Al2O3 catalysts were prepared by the incipient wetness impregnation method and their catalytic performance for the selective catalytic reduction of NOx by H2 was evaluated. The results showed that the NOx conversion and N2 selectivity were improved over Pd-Sn/TiO2-Al2O3 and Pd-Ni/TiO2- Al2O3 catalysts above 200 ℃. More importantly, the N2 selectivity and high-temperature activity of Pd-Sn/TiO2- Al2O3 catalyst was far superior to the single Pd/TiO2-Al2O3 catalyst. The optimal Sn loading was 2 wt.%. X-ray diffrac- tion （XRD） results showed that the interaction between Pd and Sn promotes the dispersion of Pd over TiO2-Al2O3. Temper- ature-programmed reduction （Ha-TPR） results demonstrated that the addition of Sn contributes to the formation of PdO and improving the redox property of Pd/TiOz-Al2O3. The addi- tives of Ni and Sn also facilitated the absorption of NOx and the oxidation of NO to NOa, which play important roles in the selective catalytic reduction of NOx by hydrogen.     

图的Seidel Laplacian-Estrada指标

设G为简单图,d_i表示顶点v_i的度,G的Seidel Laplacian矩阵S_L(G)是一个对角元为n-1-2d_i,非对角元为±1的实对称矩阵,当顶点v_i和v_j相邻时,(S_L(G))_(ij)=1,否则,(S_L(G))_(ij)=-1。引入并研究了Seidel Laplacian矩阵的Estrada指标,给出了该指标的上、下界,以及它与Seidel Laplacian能量之间的关系。     

Thermostatistic properties of the relativistic <Emphasis Type="Italic">q</Emphasis>-deformed ideal Fermi gas at high temperature

The q-deformed Fermi-Dirac distribution is used to study the high-temperature(T TF) ∨behavior of a relativistic q-deformed ideal Fermi gas. The effects of the q-deformation and relativity on the properties of the system are discussed,and then,the example of the neutrinos near the surface of the earth is used to calculate approximately. It shows that the q-deformation increases the total energy but decreases the chemical potential and heat capacity,whereas mc 2 ε F0increases the chemical potential and total ...     

Effect of aluminum oxide on the compressive strength of pellets

Analytical-reagent-grade Al₂O₃ was added to magnetite ore during the process of pelletizing, and the methods of mercury intrusion, scanning electron microscopy, and image processing were used to investigate the effect of Al₂O₃ on the compressive strength of the pellets. The results showed that, as the Al₂O₃ content increased, the compressive strength of the pellets increased slightly and then decreased gradually. When a small amount of Al₂O₃ was added to the pellets, the Al₂O₃ combined with fayalite (2FeO·SiO₂) and the aluminosilicate (2FeO·2Al₂O₃·5SiO₂) was generated, which releases some iron oxide and reduces the inhibition of fayalite to the solid phase of consolidation. When Al₂O₃ increased sequentially, high melting point of Al₂O₃ particles hinder the oxidation of Fe₃O₄ and the recrystallization of Fe2O3, making the internal porosity of the pellets increase, which leads to the decrease in compressive strength of the pellets.     

多复变中Dp和H∝及βp空间的一些关系

在 Cⁿ中的单位球上, 讨论了Dirichlet 型空间D_p和广义Bloch空间β^q的相互包含关系以及D_p 和Hardy空间H^∝之间的点乘子,根据 p 的一些不同情形对M(H^∝, D_p ) 和 M( D_p , H^∝) 进行了刻划.     

复合添加剂对金属陶瓷惰性阳极导电性的影响

为了改善金属相对陶瓷相的润湿,充分发挥金属相的作用,在合成含10%Ag的Ag/NiFe2O4金属陶瓷过程中引入添加剂TiO2和V2O5,采用粉末冶金法制备Ag/NiFe2O4金属陶瓷惰性阳极.原料NiO,Fe2O3,Ag和微量TiO2,V2O5经混料、成型后在1 250℃下烧结6 h.研究了添加剂TiO2,V2O5对Ag/NiFe2O4金属陶瓷微观形貌以及对试样电导率的影响.研究结果表明,复合添加TiO2,V2O5后金属银在陶瓷相中呈线状分布,EDX分析发现金属相中含有陶瓷相的组成,说明金属相与陶瓷相间的润湿性有所改善;同时试样的电导率有了显著提高.当添加0.5%TiO2,2.0%V2O5时试...     

Foliar δ^13C and δ^15N values of C3 plants in the Ethiopia Rift Valley and their environmental controls

The foliar C and N stable isotopic compositions （δ^13C and δ^15N） and the relationships between these compositions and environmental factors of C3 plants in the Ethiopia Rift Valley were investigated. There were three distribution patterns for foliar δ^13C with mean values of -26.7‰±0.4‰, -29.7‰ ±0.6‰ , and -26.9‰± 1.2‰ in cold-moist, temperate-moist, and arid-hot environments, respectively. The δ^15N values ranged from -1.4‰ ±1.7‰ to 14.3‰ ± 0.1‰, with higher values under arid-hot conditions and the lowest values in plants growing at higher altitudes under cold-moist conditions. A strong negative relationship between mean annual precipitation and δ^15N explained more than half of the observed variation in the δ^15N values （r2= 0.54, P 〈 0.001）; a modest positive relationship was also found between δ^15N and temperature （r2 = 0.32, P 〈 0.01）. A weakly positive relationship existed between δ^13C and temperature, and changes in δ^13C values with precipitation and altitude followed quadratic curves. This suggests a shift in the effects of water and heat conditions caused by altitude on carbon isotopic discrimination.     

Variability of snail growing season at the Chinese Loess Plateau during the last 75 ka

Knowledge of seasonal climate change is one of the key issues facing Quaternary paleoclimatic studies and estimating seasonal climate change is difficult,especially changes such as seasonal length on glacial-interglacial timescales.The stable isotope composition from seasonal land snail shells provides the potential to reveal seasonal climatic features.Two modern land snail species,cold-aridiphilous Pupilla aeoli and thermo-humidiphilous Punctum orphana,were collected from different climatic zones in 18 localities across the Chinese Loess Plateau,spanning 11 degrees of longitude and covering a range of 1000 km2.The duration of the snail growing season(temperature ≥10℃) was shorter(202 ± 6 d) in the eastern Loess Plateau compared with in the western Loess Plateau(162 ±7 d).The δ13C of P.aeoli shells was ?9.1‰ to ?4.7‰ and ?5.0‰ to 0.3‰ for δ18O.For P.orphana,the δ13C ranged from ?9.1‰ to ?1.9‰ and ?8.9‰ to ?2.9‰ for δ18O.Both the δ13C and δ18O differences between the two snail species were reduced from the east to the western Loess Plateau(2.8‰ to 0.2 ± 1.1‰ for δ13C and 4.7‰ to 2.9 ± 1.3‰ for δ18O).These isotopic differences roughly reflect the difference in the growing season lengths between the east and west Loess Plateau indicating that the duration of the snail growing season shortens by 15 d or 19 d if the difference decreases by 1‰ in δ13C or δ18O,respectively.Thus,the difference in δ13C and δ18O between both snail species can be used to reveal the length of the snail growing season in the past.Based on our investigation,the length of the snail growing seasons from the Xifeng region during the last 75 ka was reconstructed.During the mid-Holocene(8-3 ka),the mean isotopic difference from both snail species reached maximum values of 2.6 ± 0.7‰ and 2.1 ± 1.4‰ for δ13C and δ18O,respectively.This was followed by MIS 3 that ranged from 2.5 ± 0.4‰ for δ13C and 1.6 ± 0.8‰ for δ18O.The Last Glacial Maximum changed by only 0.2‰ and 0.4‰ for δ13C and δ18O,respectively.Therefore,we estimate that the duration of the snail growing seasons to be ～200 ± 10 d during the mid-Holocene,190 ± 6 d in MIS 3 and 160 ± 3 d during the last glacial period.