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Influence of Phase Constitution on mechanical Performance of 12Ce-3Y-ZrO_2/2.5 wt pct Al_(2)O_(3) Composites

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journal of materials Science & Technology 2004年第3期20卷 284-286页

作者： ShuigenHUANG LinLI j.Vleugels O.V.D.Biest SchoolofmaterialsScienceandEngineering.ShanghaiUniversity Shanghai200072China DepartmentofmTm KatholiekeUniversiteitLeuvenB-3001HeverleeBelgium

The phase constitution of a composite consisting of 12 at. pct CeO_2-3 at. pct Y_2O_3-ZrO_2/2.5 wt pct Al_2O_3 (3Y12Ce2.5Al)was determined by thermodynamic calculation. It is a combination of 36.9 at. pct cubic phase and 63.1 at. pct tetragonalphase at 1450℃. Green compacts were fabricated by cold isostatic pressing with powder synthesized by coating technique,and pressureless sintered at 1450℃. The fracture toughness and Vickers hardness, evaluated by the micro-indentation method,are 2.02 mPa·m^(1/2) and 11.395 GPa, respectively. The addition of 3 at. pct Y_2O_3 to 12 at. pct CeO_2-ZrO_2 ceramic leads todrastically decrease in toughness compared to composites without yttria stabilizer. No monoclinic phase is detected on thesudece of all the ground samples. The high content of cubic phase and lack of phase transformation can be attributed to thelow toughness based on the thermodynamic prediction.

关键词： Thermodynamics mechanical properties ZrO_2-CeO_2-Y_2O_3

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面对特种怀疑主义

中共中央党校学报 1993年第12期 26-28页

作者： j·m·伊迪杨中兴

主体移心自苏格拉底'把哲学从天上招唤到世间'以来西方哲学一直认为它必须找到经验的基础,找到被经验实在的基础,这被称为哲学的'基础主义'。我们传统的一切最伟大的哲学家柏拉图、亚里士多德、奥古斯丁、阿奎那、笛卡尔、斯宾诺莎、莱... 详细信息

主体移心自苏格拉底'把哲学从天上招唤到世间'以来西方哲学一直认为它必须找到经验的基础,找到被经验实在的基础,这被称为哲学的'基础主义'。我们传统的一切最伟大的哲学家柏拉图、亚里士多德、奥古斯丁、阿奎那、笛卡尔、斯宾诺莎、莱布尼茨、康德。

关键词：莱布尼茨基础主义阿奎那西方哲学奥古斯丁先验哲学罗蒂精神要素宇宙生物学斯宾诺莎

Carbohydrate Yield and Biomethane Potential from Enzymatically Hydrolysed <i>Saccharina latissima</i>and Its Industrial Potential

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Advances in microbiology 2019年第4期9卷 359-371页

作者： jacob j. Lamb Dag R. Hjelme Kristian m. Lien Department of Electronic Systems & Enersense NTNU Trondheim Norway Department of Energy and Process Engineering & Enersense NTNU Trondheim Norway

The demand for fuel for utilisation of machinery and transport has culminated in large amounts of fossil fuel usage in the last century. The environmental dangers attached with the usage of fossil fuels have created a large demand for alternative sources of fuels. There is an array of polysaccharides contained within macroalgae, such as mannitol, cellulose and laminarin. These polysaccharides have potential for production of alternative biofuels;however, they are not easily accessible for biological digestion. By pretreatment of macroalgae with enzymes, these polysaccharides may be easier to access by microbes, allowing effective utilization in anaerobic digestion. Saccharina latissima, available in abundance on the Norwegian coast line, is a brown macroalgae with a high level of carbohydrates. This study assesses the ability for utilisation of enzymatically pre-treated Saccharina latissima for production of biogas through anaerobic digestion. The harvested Saccharina latissima was analysed to contain 30.11 ± 2.30 g of reducing sugars per 100 g of dry sample upon enzymatic hydrolysis. This was able to yield 459 ± 30 mL per gVS of biogas through anaerobic digestion, with a methane content of 56%. This suggests a biomethane potential of 1760 m3 per ha of productive sea floor growing Saccharina latissima. An evaluation of this process has been performed to demonstrate the industrial potential of Saccharina latissima in biogas production.

关键词： macroalgae Hydrolysis Biogas Biomethane Enzymatic Hydrolysis

Effect of microwave Athermal and Thermal Radiation in Wastewater Sludge Properties

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journal of Environmental Science and Engineering 2011年第6期5卷 689-699页

作者： N.m. Coelho K.j. Kennedy R.L. Droste Department of Civil Engineering University of Ottawa Ottawa Ontario KIN 6N5 Canada

Samples of thickened waste activated sludge （TWAS） at two different concentrations were exposed to microwave radiation. Some of the samples were not allowed to heat up, to study the athermal effect of microwaves. The samples exposed to microwaves where their temperature was allowed to increase showed a higher degree of chemical oxygen demand （COD）, protein and carbohydrate solubilization compared to a control. The size distribution of particles was changed after exposure of TWAS to microwaves. These results were also observed in the samples exposed to microwaves but kept at a constant temperature, suggesting the occurrence of a microwave athermal effect. Thermally （samples experiencing a temperature increase） and athermally （samples that were maintained at ambient temperature） microwaved subsequent anaerobic biodegradation. samples produced more methane than the non-microwaved controls in

关键词： Athermal solubilization biodegradability microwave thermophilic WAS

Community-Based Cardiovascular Screening: Detection of Disease in Individuals with No Self-Reported Risk Factors

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Open journal of Preventive medicine 2015年第2期5卷 78-83页

作者： Steven m. Weisman Nathalie I. Garbani Andrew j. manganaro Innovative Science Solutions Morristown USA Life Line Screening (LLS) Independence USA

Introduction: Community-based cardiovascular screening presents an opportunity to detect the presence of cardiovascular disease in individuals who report having no traditional risk factors, and also to identify the presence of those risk factors in those who are unaware of their health status. Identification of both disease and risk factors (e.g. high cholesterol, high blood pressure, diabetes, etc.) creates an opportunity for treatment and management to reduce and prevent cardiovascular events from occurring. methods: Over 230,000 screening records for individuals who had undergone carotid artery stenosis (CAD), abdominal aortic aneurysm (AAA), or peripheral artery disease (PAD) screening were reviewed. Participants were stratified based on self-reported risk factors as having no risk factors, one risk factor, or two or more risk factors. Self-reported risk factors were also compared with results of screening for blood pressure, blood glucose, and lipid level status. Results: Abnormal findings of CAS, AAA, and PAD were all uncovered in individuals who self-reported as having no traditional risk factors. These abnormal findings included those defined as severe. The review of self-reported risk factors for accuracy demonstrated varying levels of inaccuracies in both under and over-reporting of risk factors. Conclusions: Community-based cardiovascular screening may result in the identification of cardiovascular disease in individuals with no established risk factors. While the underreporting of risk factors has also be demonstrated, it is clear that further research is warranted to better understand the presence of disease in the absence of risk factors.

关键词： Cardiovascular Screening Risk Factors Carotid Artery Stenosis Abdominal Aortic Aneursym Peripal Artery Disease

熔体─上地幔岩石的相互作用及稀土元素模拟计算──以法国中央高原堡雷(Bore)幔源包体为例

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地球化学 1998年第3期27卷 205-216,T001页

作者：徐义刚 j.-L.Bodinier m.A.menzies j.-C.C.mercier 中国科学院广州地球化学研究所广州510640 法国蒙贝利埃大学地质系英国伦敦大学罗尔郝罗威学院地质系法国拉罗切尔大学地质系

产于法国中央高原堡雷（Boree）的具镶嵌结构方辉橄榄岩包体被认为是大陆活动区碱性玄武岩捕获的、来源最深的尖晶石相上地幔样品。已有的岩浆堆积说和等物理化学环境中重结晶模式难于解释其矿物学、微量元素和Sr－Nd同位素地球化学特... 详细信息

产于法国中央高原堡雷（Boree）的具镶嵌结构方辉橄榄岩包体被认为是大陆活动区碱性玄武岩捕获的、来源最深的尖晶石相上地幔样品。已有的岩浆堆积说和等物理化学环境中重结晶模式难于解释其矿物学、微量元素和Sr－Nd同位素地球化学特征，为此我们提出了热柱来源熔体渗滤岩石圈底部的新成因模式。渗滤熔体和岩石圈地幔之间的反应不仅导致了矿物含量的变化，而且形成了特征的微量元素配分型式和同位素组成。REE模拟计算表明，熔体／岩石比值的大小、熔体性质以及熔体-岩石反应机制的多样性是控制本区幔源包体地球化学及其岩石变形、结晶程度之间相关性的重要因素。

关键词：地球化学模拟计算熔体-橄榄岩岩石稀土族

modification of magnetic properties of a manganese phthalocyanine by coordination of CO molecule

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Modification of magnetic properties of a manganese phthalocy...

Photoelectrochemical water splitting using sprayed ZnIn2S4 thin film for hydrogen production

第18届国际真空大会

作者： A. Strozecka m. S. Santacruz j. Fernandez-Rossier j. I. Pascual Institute of Experimental Physics Free University Berlin Department of Applied Physics University of Alicante

The coordintation of small molecules, like NO, CO or O2, to transition metal phthalocyanines can substantially modify properties of these complexes and their interaction with underlying substrate. We investigated the effect of coadsorption of CO molecules on magnetic properties of manganese phthalocyanines （mnPc） adsorbed on Bi（110） surface. STm experiments reveal a pronounced zero bias anomaly in the tunneling spectra of mnPc, which we attribute to the Kondo effect originating from coupling of molecular magnetic moment to the electrons of the substrate. Bonding of CO to a central metal ion changes the Kondo resonance and leads to the broadening of the zero bias feature. According to DFT calculations, CO-coordination reduces the spin of the complex from 3/2 to 1/2, which explains the increase of the Kondo temperature. The original magnetic state of mnPc is recovered after controlled and selective field-induced desorption of the CO molecules.

关键词： manganese phthalocyanine Kondo effect magnetic molecules STm/STS

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Photoelectrochemical water splitting using sprayed ZnIn2S4 t...

A novel process for sorting fine-sized sulphide minerals by biocoagulation

第九届全国氢能学术会议

作者： m.T.Li,j.Z.Su,L.j.Guo Xi’an jiaotong University,China

The photoelectrochemical splitting water into hydrogen and oxygen using solar energy is a potential method to resolve the energy *** is most of important to develop semiconductor photoanode to work under visible light irradiation for this *** this work ZnInS thin films prepared by spray pyrolysis method were used for photoanode to

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中国有色金属学会会刊：英文版 2008年第6期18卷 1473-1479页

作者： H. Z. KUYUmCU j. PINKA T. BIELIG Department of mechanical Process Engineering and Solids Processing Technical University of Berlin Sekr. BH 11 Strasse des 17. Juni 135 10623 Berlin Germany

基于一个过程设计想法，在柏林的技术大学的调查证实微生物的 biocoagulation 和稳固的粒子将是一个新方法产生对排序合适的更粗糙的粒子。微生物的选择 biocoagulation 的过程，分别地例如酵母喜欢 Saccharomyces cerevisiae 和 Yarrow... 详细信息

基于一个过程设计想法，在柏林的技术大学的调查证实微生物的 biocoagulation 和稳固的粒子将是一个新方法产生对排序合适的更粗糙的粒子。微生物的选择 biocoagulation 的过程，分别地例如酵母喜欢 Saccharomyces cerevisiae 和 Yarrowia lipolytica，并且例如象方铅矿和闪锌矿一样的矿物质，微分散固体作为一个新奇排序过程的一个基础被分析了。因此，特别微生物的房间表面的特征例如静电的费用和细胞外的聚合物质的作文，以及他们对选择 biocoagulation 的影响被学习。在 10 m 下面的微生物和硫醚粒子有效地凝结的试验性的调查表演。而且，筹款对有选择地形成的 biocoagulates 的分离合适。与设计的列筹款，令人满意的恢复率被到达。

关键词：硫矿拣选生物凝固微生物