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文化交流与融合的产物——外来词
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作者 张丽丽 《现代语文(下旬.语言研究)》 2008年第1期111-111,110,共2页
外来词的出现代表着新事物、新概念的产生,记录着文化交流与融合留下的深刻痕迹。外来词是文化的载体之一,具有文化、社会和心理三方面的功用。过多地使用外来词会导致许多不良后果,所以要保持母语的纯洁性,同时又吸收外来语的有益... 外来词的出现代表着新事物、新概念的产生,记录着文化交流与融合留下的深刻痕迹。外来词是文化的载体之一,具有文化、社会和心理三方面的功用。过多地使用外来词会导致许多不良后果,所以要保持母语的纯洁性,同时又吸收外来语的有益成分,就应该合理吸收外来词,使其汉化,遵循开放、规范的原则。 展开更多
关键词 外来词 功用 字母词 合理吸收
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Study on Absorption Law of Nitrogen,Phosphorus and Potassium and Proper Nitrogen Application in Chuanxiangyou 9838 under No-tillage Cultivation
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作者 孙锡发 涂仕华 +3 位作者 秦鱼生 冯文强 廖鸣兰 周先龙 《Agricultural Science & Technology》 CAS 2008年第2期143-146,151,共5页
The aim of the study is to investigate the absorption laws of nitrogen, phosphorus, and potassium, and proper nitrogen application in Chuanxiangyou 9838 under no-tillage cultivation. Five nitrogen application treatmen... The aim of the study is to investigate the absorption laws of nitrogen, phosphorus, and potassium, and proper nitrogen application in Chuanxiangyou 9838 under no-tillage cultivation. Five nitrogen application treatments were designed to analyze the absorption laws of N, P and K, and to discuss the effects of different N fertilizer application amounts on yield and yield composition factors of Chuanxiangyou 9838. The results showed that gross nutrient absorption in Chuanxiangyou 9838 was greatly varied at different developmental stages under rice-rape rotation with no-tillage. The maximum N absorption in Chuanxiangyou 9838 appeared at jointing stage followed by heading stage, thirdly the tillefing stage ; the P absorption in Chuanxiangyou 9838 presented the consecutively slight increase during seedling stage and mature stage ; the K absorption in Chuanxiangyou 9838 was mainly conducted from jointing stage to heading stage, during which K absorption accounts for 73.4% of the total absorption in whole developmental stage. Consequently, N fertilizer should be applied earlier ( before jointing stage), P fertilizer is suitable as base fertilizer and application of K fertilizer should be preferably conducted at early-middle period. When the yield reached 11 t/hm^2, the optimal N application amount in Chuanxiangyou 9838 was about 165 kg/hm^2. 展开更多
关键词 Chuanxiangyou 9838 NITROGEN PHOSPHORUS POTASSIUM Application amount
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新形势下药剂学在临床中的应用 被引量:6
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作者 林美玉 《中国医药指南》 2013年第5期377-378,共2页
生物药剂学在现今的临床医学中占据着越来越重要的地位,新药开发及药物质量研究都离不开药剂学工作,为保证医院临床的新药剂给药途径,就需对新药物在人体内吸收等详细过程进行分析检测,目前,医院渐渐将"以医生为中心"的医学... 生物药剂学在现今的临床医学中占据着越来越重要的地位,新药开发及药物质量研究都离不开药剂学工作,为保证医院临床的新药剂给药途径,就需对新药物在人体内吸收等详细过程进行分析检测,目前,医院渐渐将"以医生为中心"的医学模式转变为"以患者为中心",这也要求医师对各项药物的合理用量都有着准确把握,从以上两方面可以看出,药剂学在临床中的合理应用使保证临床就诊质量的重要手段,因此,要保证药剂学工作能够跟得上医学发展,跟得上临床学的发展,还需要进一步对药剂学的理论研究方法及研究内容进行不断发展更新,让药剂学在临床医学中发挥更大的作用。 展开更多
关键词 药剂学 应用 临床 预测吸收 合理用药
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TREATMENT AND RESOURSE REUSE OF INDUSTRIAL WASTEWATER FROM PRODUCTION PROCESS OF PHENYL ACETIC ACID 被引量:3
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作者 PAN Bingcai CHEN Jinlong +1 位作者 ZHANG Quanxing WANG Yong 《Chinese Journal of Reactive Polymers》 1999年第1期82-89,共8页
The effluent from phenyl acetic acid (PhCH2COOH) production process can betreated with NDA-999 macroporous polymeric adsorbent with about 100% removalefficiency of PhCH2COOK benzyl alcohol (PhCH2OH)and benzaldehyde (P... The effluent from phenyl acetic acid (PhCH2COOH) production process can betreated with NDA-999 macroporous polymeric adsorbent with about 100% removalefficiency of PhCH2COOK benzyl alcohol (PhCH2OH)and benzaldehyde (PhCHO) aswell as the decrease in Total Organic Carbon (TOC)from 4691mg/l to <300mg/L. 3. 7kgPhCH2COOH and 120kg NaCl will be recovered from per m3 wastewater and theadsorbent can be reused after being regenerated by NaOH aqueous solution andmethanol. Good economic, social and environmental results can be achieved with thismethod. 展开更多
关键词 phenyl acetic acid polymeric adsorbent ADSORPTION wastewater treatment
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g-C3N4/SnS2 Heterostructure: a Promising Water Splitting Photocatalyst
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作者 Shao-hua Chen Jia-jun Wang +1 位作者 Jing Huang Qun-xiang Li 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2017年第1期36-42,I0001,共8页
Graphite-like carbon nitride (g-C3N4) based heterostrutures has attracted intensive attention due to their prominent photocatalytic performance. Here, we explore the g-CaN4/SnS2 coupling effect on the electronic str... Graphite-like carbon nitride (g-C3N4) based heterostrutures has attracted intensive attention due to their prominent photocatalytic performance. Here, we explore the g-CaN4/SnS2 coupling effect on the electronic structures and optical absorption of the proposed g-CaN4/SnS2 heterostructure through performing extensive hybrid functional calculations. The obtained geometric structure, band structures, band edge positions and optical absorptions clearly reveal that the g-C3N4 monolayer weakly couples to SnS2 sheet, and forms a typical van der Waals heterojunction. The g-C3N4/SnS2 heterostructure can effectively harvest visible light, and its valence band maximum and conduction band minimum locate in energetically favorable positions for both water oxidation and reduction reactions. Remarkably, the charge transfer from the g-C3N4 monolayer to SnS2 sheet leads to the built-in interface polarized electric field, which is desirable for the photogenerated carrier separation. The built-in interface polarized electric field as well as the nice band edge alignment implys that the g-CaN4/SnS2 heterostructure is a promising g-CaN4 based water splitting photocatalyst with good performance. 展开更多
关键词 First-principles calculation Coupling effect Optical absorption Band edge alignment Water splitting
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钙的选择
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作者 段嗣洁 田俊婷 耿艳芳 《科技信息》 2012年第32期428-428,共1页
钙是人体必需的矿物质,有效且吸收率高的补钙制剂不仅是治疗钙缺乏、骨质疏松更是预防钙缺乏症发生的主要手段,合理服用钙制剂是提高钙制剂吸收极其有效的手段。
关键词 钙制剂 吸收合理服用 过量补钙
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Pseudo-Bonding Interaction between Boron-doped Heterofullerene and Zinc Porphine Predicted by DFT Calculation
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作者 Jun-ying Weng Ting-ting Zhou Ying-hui Zhang 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2014年第3期285-290,共6页
Theoretical study on the supramolecular complexes formed between boron-doped het- erofullerene (C59B) and zinc porphine (ZnF), namely C59B-ZnP and its anion species C59B-ZnP, was performed by density functional th... Theoretical study on the supramolecular complexes formed between boron-doped het- erofullerene (C59B) and zinc porphine (ZnF), namely C59B-ZnP and its anion species C59B-ZnP, was performed by density functional theory calculation at wB97XD/6-31G(d) level. Strong interaction between porphyrin and heterofullerene moiety was predicted for these complexes based on geometry and electronic structure analysis. Especially, pseudobonding interaction occurring between the B atom of fullerene and the N atom of porphyrin was predicted to occur in C59B-ZnP complex, but be broken in C59B-ZnP complex. Time-dependent density functional theory calculation manifests the redshift of electron absorption for ZnP upon the interaction with heterofullerene. 展开更多
关键词 Boron-doped fullerene Zinc porphine Supramolecular complex DFT calculation
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Protonation Effect on One- and Two-photon Absorption Property of a Newly Synthesized Octupolar Chromophore
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作者 Hong-iuan Ding Jie Sun Chuan-kui Wang 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2012年第6期666-670,I0003,共6页
The protonation effects on one- and two-photon absorption properties of an octupolar molecule TA with 1,3,5-triazine core and pyrrole electron-donating end-groups have been studied at hybrid density functional theory ... The protonation effects on one- and two-photon absorption properties of an octupolar molecule TA with 1,3,5-triazine core and pyrrole electron-donating end-groups have been studied at hybrid density functional theory level. A computational scheme is developed to simulate a proton attached to an atom. The numerical results show that large changes in both one- and two-photon absorption properties are observed when the compound is transformed from neutral to threefold protonated states. When the compound is protonated, more charge transfer states appear and the absorption band has a red-shift. Furthermore, the two-photon absorption cross-section is largely enhanced. The theoretical calculations demonstrate the protonation effect on promoting the intramolecular charge transfer strength. The results present qualitative agreement with the experimental observations. A two-photon absorption switch with the compound TA based on the protonation effect is proposed. 展开更多
关键词 PROTONATION Two-photon absorption Response theory Octupolar chro-mophore
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