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- 与 未发现的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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We found out one kind of new orange-red long afterglow material La2O2S: Eu3+, Mg, Zr.2 In the phosphor Gd2O2S, Mg, Ti which was prepared by high-temperature solid-state method, the orange afterglow phenomenon can be seen after illuminated with UV light.3 Using the high-temperature solid-state method, Gadolinium oxysulfide phosphors doped with rare earth ions were synthesized. We can observe the red or orange phosphorescence in Gd2O2S doped with Eu3+, Sm3+, Tm3+, Yb3+, Dy3+, Er3+, Nd3+or Ho3+. This is a new result of the long afterglow phosphors research.4 Using the microwave radiation method, the new Sm3+ doped gadolinium oxysulfide phosphor, which has the orange-red long afterglow emission after illuminated with UV light or visible light, was synthesized for the first time.5 In fluorescent materials YOX doped with europium ions, the long afterglow phenomenon wasnt observed but the blue luminescence of Eu2+ and red luminescence of Eu3+ are simultaneously examined. This is a new result of the valence stability and change of Eu2+ in yttrium oxyhalide .We systematically studied the effects of the host, addition agents and reaction atmosphere on the valence change and fluorescence property of europium ions.
经过系统的研究总结得到以下的结论与成果: 1采用高温固相反应法合成了一系列稀土离子掺杂的硫氧化镧发光粉,发现了该体系中Eu~(3+)的长余辉发光,从而得到一种迄今未见文献报道的红色长余辉发光材料:La_2O_2S:Eu~(3+),Mg,Zr; 2在Gd_2O_2S,Mg,Ti磷光粉中观察到橙色的长余辉发光现象; 3采用高温固相反应法合成了一系列稀土离子掺杂的硫氧化钆磷光粉,在掺杂Eu~(3+)、Sm~(3+)、Tm~(3+)、Yb~(3+)、Dy~(3+)、Er~(3+)、Nd~(3+)、Ho~(3+)的Gd_2O_2S中观察到红色和橙色长余辉发光; 4首次采用微波法合成了Gd_2O_2S:Sm~(3+),Mg,Ti磷光粉,该磷光粉经紫外或可见光激发后呈现明显的橙红色长余辉发光; 5在YOX中同时观察到Eu~(2+)和Eu~(3+)的发射,系统研究了基质、添加剂及反应气氛对Eu价态和发光的影响。
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To discover new strobilurin analogues with high pesticidal activity, a series of new strobilurin derivatives containing substituted pyrazole and pyrimide ring, which included 124 novel compounds (73 compounds containing substituted pyrazole ring and 51 compounds containing substituted pyrimide ring) were designed and synthesized. In addition, 36 new intermediates were synthesized. Their structures were characterized by ~1H NMR and elemental analysis, partial compounds were characterized by MS and IR once again.
为了发现具有更好生物活性的新型Strobilurin类化合物,本论文在详尽总结文献的基础上,设计并合成了含吡唑和嘧啶环的新型Strobilurin类化合物124个,其中含吡唑环的新型Strobilurin类化合物73个,含嘧啶环的新型Strobilurin类化合物51个;未见文献报道的中间体36个,所合成的化合物经过~1H NMR、IR、LC-MS或元素分析等确定了结构。
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To discover new strobilurin analogues with high pesticidal activity, a series of new strobilurin derivatives containing substituted pyrazole and pyrimide ring, which included 124 novel compounds (73 compounds containing substituted pyrazole ring and 51 compounds containing substituted pyrimide ring) were designed and synthesized. In addition, 36 new intermediates were synthesized. Their structures were characterized by 1H NMR and elemental analysis, partial compounds were characterized by MS and IR once again.
为了发现具有更好生物活性的新型Strobilurin类化合物,本论文在详尽总结文献的基础上,设计并合成了含吡唑和嘧啶环的新型Strobilurin类化合物124个,其中含吡唑环的新加热管型Strobilurin类化合物73个,含嘧啶环的新型Strob 加热管 ilurin类化合物51个;未见文献报道的中间体36个,所合成的化合物经过1H NMR、IR、LC-MS或元素分析等确定了结构。
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To explore new synthetic methods, we set out a careful investigation of the reaction of benzimidazolium salt with many nucleophilic agents, including the active aromatic compounds and heteratom nucleophilic agents, and found that the quaternary C=N is not so active; when benzimidazolium salt is reacted with big nitrogen nucleophilic agent? phthalimide, it does not give the expected addition product, instead, produces N-alkyl phthalimide through alkyl-transfermation from benzimidazolium salt to phthalimide.
为了开发新的合成方法,研究了苯并咪唑盐与各种亲核试剂(活泼芳环与杂原子亲核试剂)的反应,发现苯并咪唑盐不与活泼芳环及杂原子亲核试剂发生2位加成反应;在与体积较大的位阻型N亲核试剂邻苯二甲酚亚胺反应时,未得到亲核试剂与极化的C=N的加成产物,而是得到N烷基化的邻苯二甲酰亚胺,进一步研究表明,苯并咪唑盐将1(3)位N上的烷基转移给了邻苯二甲酰亚胺,并讨论了其反应机理和取代基,溶剂效应。
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Through the comparative analysis of the arthropod community between intercropping system and the three control systems~the weeding jujube yard system, not weeding jujube yard system and the system of farmland, it is showed that the intercropping system have a more richer neutral arthropod groups. Compared to Weeding jujube yard system and system of farmland the intercropping system have more advantages in natural enemies groups and more disadvantaged phytophagy groups. And the intercropping system can rebuild the arthropod community more faster than the other systems after the system was seriously disturbed, so it is than compared to other three systems the intercropping system have more proper structure and more stronger regulation ability and also more stronger ability to control pest.
对枣粮间作系统和三种对照系统,即除草枣园系统、未除草枣园系统和农田系统的节肢动物群落进行对比分析发现枣粮间作系统具有更为丰富的中性节肢动物类群,比起除草枣园系统和农田系统有更优势的天敌类群和更劣势的植食性类群,且在遭受生境的巨大变化后新生境重新形成时枣粮间作系统的各亚系统能更迅速的形成节肢动物群落和各种功能类群,说明枣粮间作系统比三种对照系统的节肢动物群落有着更合理的结构、更强的调控能力和更强的控害能力。
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Besides, the effects of light and temperature on stomata have not been modelled in any mechanistic model.
在第一章中,通过综述气孔对环境因子响应的数学模型的文献,发现目前对描述和模拟气孔行为的经验模型和机理模型是脱节的,可供选择的气孔模型还不能满足理论分析和实际应用的需要;经验模型没有机理的支持,不能用于理论分析,没有普适性;机理模型都过于复杂,而且其中的一些参数难以确定,所以它们还只能作定性模拟,不能作定量预测,另外,对于光强和温度的影响还未见有人模拟。
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It can be concluded that there are two defects of subjectivistic philosophy.
在海德格尔看来,尽管胡塞尔现象学特别是它的三个重要发现在挑战笛卡尔式的心物二元论、突破传统的真理和存在概念等方面具有重要的意义,但无论是从其理论内容本身来看,还是从胡塞尔对他本人的哲学与笛卡尔、康德等人的哲学的关系的自我陈述来看,胡塞尔现象学都可以说是未脱近代主体性哲学之窠臼。
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As held by Heidegger, although Husserl's phenomenology had challenged dualism of Descartes' type as well as had surmounted the traditional views about the implication of such concept as "being" and "truth", on the foundation it can still be looked upon as a type of subjectivistic philosophy.
在海德格尔看来,尽管胡塞尔现象学特别是它的三个重要发现在挑战笛卡尔式的心物二元论、突破传统的真理和存在概念等方面具有重要的意义,但无论是从其理论内容本身来看,还是从胡塞尔对他本人的哲学与笛卡尔、康德等人的哲学的关系的自我陈述来看,胡塞尔现象学都可以说是未脱近代主体性哲学之窠臼。
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Pristine Li-Al LDHs are synthesized by hydrothermal process in different reaction conditions by varying the aging time for 1 and 24 hours. Both the Li-Al layered double hydroxides (abbreviated as Li-Al LDH1 and Li-Al LDH24 for aging time 1 hour and 24 hours, respectively) were modified by using sulphanilic acid sodium salt hydrate, modified agent to form modified Li-Al LDH1-SAS and Li-Al LDH24-SAS. The morphology of the pristine layered double hydroxides are investigated by using wide angle X-rays diffraction, scanning electron microscopy and particle size analyzer which indicates that the crystallinity and aspect ratio is increased with increasing the aging time from 1 hour to 24 hours. The particle size of Li-Al LDH24 and Li-Al LDH1 are found to be ~1000 nm and ~250 nm, respectively. Both the pristine and modified LDHs are characterized by XRD, FTIR spectra and thermogravimetric analysis.
本研究目的在於改变长晶时间的长短,合成出同径大小的Li-Al LDHs,再经由改质剂sulphanilic acid sodium salt hydrate将Li-Al LDHs无机层材表面有机官能化制备出改质型Li-Al LDHs-SAS,於是进一步藉由扫描式电子显微镜、射径仪和穿透式电子显微镜等仪器分别观察LDHs改质前和改质后其主层结构型态上的变化;从中可以发现Li-Al LDHs随著长晶时间的增加其径有随之增大的趋势,但经有机化改质后其径会由於改质环境的影响明显低许多,针对此现象本实验将未改质和改质后之Li-Al人工无机层材制备成复材进一步探讨其在热性质和难燃特性上的为表现。
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Prince Andrey listened carefully to Prince Bagration's colloquies with the commanding officers, and to the orders he gave them, and noticed, to his astonishment, that no orders were really given by him at all, but that Prince Bagration confined himself to trying to appear as though everything that was being done of necessity, by chance, or at the will of individual officers, was all done, if not by his order, at least in accordance with his intentions.
安德烈公爵仔细地倾听巴格拉季翁公爵和首长们的谈话,倾听他所颁布的命令,值得惊讶的是,他已经发现,没有颁布任何命令,巴格拉季翁公爵只是极力地装出,仿佛这一切事情的发生都是出于必然或偶然,或出于个别首长的意志,这种种事情的发生虽未遵照他的命令,却是符合他的意愿的。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。