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Search Results: 1 - 10 of 140303 matches for " Mei-Li You "
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Thermal Hazard Evaluation of Lauroyl Peroxide Mixed with Nitric Acid
Lung-Chang Tsai,Mei-Li You,Mei-Fang Ding,Chi-Min Shu
Molecules , 2012, DOI: 10.3390/molecules17078056
Abstract: Many thermal runaway incidents have been caused by organic peroxides due to the peroxy group, –O–O–, which is essentially unstable and active. Lauroyl peroxide (LPO) is also sensitive to thermal sources and is incompatible with many materials, such as acids, bases, metals, and ions. From the thermal decomposition reaction of various concentrations of nitric acid (HNO3) (from lower to higher concentrations) with LPO, experimental data were obtained as to its exothermic onset temperature (T0), heat of decomposition (ΔHd), isothermal time to maximum rate (TMRiso), and other safety parameters exclusively for loss prevention of runaway reactions and thermal explosions. As a novel finding, LPO mixed with HNO3 can produce the detonation product of 1-nitrododecane. We used differential scanning calorimetry (DSC), thermal activity monitor III (TAM III), and gas chromatography/mass spectrometer (GC/MS) analyses of the reactivity for LPO and itself mixed with HNO3 to corroborate the decomposition reactions and reaction mechanisms in these investigations.
Negotiating food choice: parents’ perception of children’s eating behaviour
E. Mei-Li Roberts
Anthropological Notebooks , 2006, DOI: 1234567
Abstract: This article is based on a qualitative study exploring parents’ attitudes and perceptions of their role in their children’s eating habits in schools in Angus, Scotland. Parents believed they had different degrees of influence on their children’s eating habits. This article will examine these different perceptions of parental responsibility for children’s eating habits to explore how parents viewed their influence over their children’s food choices. I argue that although parents influence the degree of ‘choice’ that children have in their food choices, particularly ‘healthy’ or ‘unhealthy’ choices, children as competent decisionmakers, may not always choose to follow their parents’ choice but instead find ways to negotiate their own aims, needs and wishes for food choices, suggesting that decisions regarding food choices are part of a negotiated process between parent and child.
pH and ion balance in wheat-wheatgrass under salt- or alkali stress.
盐、碱胁迫下小冰麦体内的pH及离子平衡

YANG Chun-wu,LI Chang-you,ZHANG Mei-li,LIU Jie,JU Miao,SHI De-cheng,
杨春武
,李长有,张美丽,刘杰,鞠淼,石德成

应用生态学报 , 2008,
Abstract: Different intensities of salt- or alkali stress were established by mixing different concentrations of NaCl and Na2SO4 or NaHCO3 and Na2CO3, respectively, and wheat-wheatgrass (Triticum aestivum L. -Agropyron intermedium) seedlings were grown under the stresses for 12 days. The pH value and the Na(+), K(+), free Ca(2+), Cl(-), SO4(2-), NO3(-), H2PO4(-), and organic acid concentrations in the fresh shoots of stressed wheat-wheatgrass seedlings were determined, aimed to approach the characteristics of pH and ion balance in wheat-wheatgrass under salt- or alkali stress. The results showed that intracellular pH was relatively stable under both stresses. Cl(-) concentration increased sharply and organic acid concentration changed less under increasing intensity of salt stress, while it was, in adverse under increasing intensity of alkali stress. Under both stresses, the cations in the fresh shoots were mainly Na(+) and K(+), but the anions were different. Under salt stress, inorganic anions were the dominant components and contributed 61.3 %-66.7% to the total negative charge, while under alkali stress, the contribution of organic acid to total negative charge increased from 38.35% to 61.6% with increasing stress intensity, and became the dominant component. It was concluded that organic acid accumulation might be a key physiological response of wheat-wheatgrass for its keeping pH and ion balance under alkali stress.
Empower EFL Students to Reduce Their L2 Lexical Errors Caused by L1 Semantic Interference
Wei-Wei Shen,Mei-Li Chou
Humanising Language Teaching , 2011, DOI: 17559715
Abstract:
Research on Autonomous Agent Architecture AASC and Its Application
自主Agent结构AASC及其应用研究

LI Bin,TANG Xiao-yan,WU Mei-li,
李斌
,唐小燕,吴梅丽

计算机应用研究 , 2005,
Abstract: Agent architecture is an important topic in the current research of Agent theory and technology. Based on BDI structure and situation calculus, an autonomous Agent architecture called AASC, which can depict various features (e.g. autonomy, proactivity, reactivity and social ability), especially autonomy of Agent, is presented in this paper. Since AASC is general Agent architecture, it can serve as a uniform framework for constructing and representing various types of Agents such as proactive Agent, reactive Agent, social Agent and cooperative Agent. Based on joint intentions cooperation model, a method for user to construct cooperative Agent is discussed in detail.
(Methylenedinitrilo)tetraacetonitrile
Xiang-Hua Song,Mei-Li Feng,Kai Wang,Yu-Feng Li
Acta Crystallographica Section E , 2010, DOI: 10.1107/s160053681000824x
Abstract: The molecular structure of the title compound, C9H10N6, exhibits four cyanomethyl groups around a central N—CH2—N unit. In the crystal structure, molecules are connected via intermolecular C—H...N hydrogen bonds, forming a three-dimensional network.
1-Methoxy-2-methylpropan-2-aminium 2,2,2-trifluoroacetate
Kai Wang,Yu-Feng Li,Xiang-Hua Song,Mei-Li Feng
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810019100
Abstract: In the title salt, C5H14NO+·C2F3O2 , the cation and anion are linked by N—H...O and O—H...N hydrogen bonds, generating a three-dimensional network.
2-Methyl-7-nitro-2,3-dihydro-1-benzofuran
Mei-Li Feng,Yu-Feng Li,Shan Liu,Hai-Yu Yang
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808017728
Abstract: The dihydrofuran ring of the title compound, C9H9NO3, adopts an envelope conformation. The nitro group is twisted slightly away from the attached benzene ring [dihedral angle = 21.9 (1)°].
Irradiation stability and cytotoxicity of gold nanoparticles for radiotherapy
Xiao-Dong Zhang, Mei-Li Guo, Hong-Ying Wu, et al
International Journal of Nanomedicine , 2009, DOI: http://dx.doi.org/10.2147/IJN.S6723
Abstract: radiation stability and cytotoxicity of gold nanoparticles for radiotherapy Original Research (7201) Total Article Views Authors: Xiao-Dong Zhang, Mei-Li Guo, Hong-Ying Wu, et al Published Date September 2009 Volume 2009:4 Pages 165 - 173 DOI: http://dx.doi.org/10.2147/IJN.S6723 Xiao-Dong Zhang1, Mei-Li Guo2, Hong-Ying Wu1, Yuan-Ming Sun1, Yan-Qiu Ding1, Xin Feng1, Liang-An Zhang1 1Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, People’s Republic of China; 2Department of Physics, Tianjin Institute of Urban Construction, Tianjin, People’s Republic of China Abstract: Gold nanoparticles are promising as a kind of novel radiosensitizer in radiotherapy. If gold nanoparticles are shown to have good irradiation stability and biocompatibility, they would play an important role in radiotherapy. In this work, we investigated irradiation effects of gold nanoparticles under 2–10 kR gamma irradiation and cytotoxicity of gold nanoparticles with human K562 cells by using Cell Titre-Glo luminescent cell viability assay. The results revealed that gamma irradiation had not induced any obvious instability and size variations in gold nanoparticles. We found that gold nanoparticles showed excellent radiation hardness with an absorbed dose conversation factor of 9.491 rad/R. Meanwhile, the surface plasmon resonance of gold nanoparticles was enhanced obviously after 2–10 kR gamma irradiation. Subsequently, cytotoxicity tests indicated that the extremely high concentration of gold nanoparticles could cause a sharp decrease in K562 cell viability, while the low concentration of gold nanoparticles had no obvious influence on the cell viability. Our results revealed that gold nanoparticles were stable under high-energy ray irradiation and showed concentration-dependent cytotoxicity.
Interaction of force and coupled system and stochastic energetic resonance
力与耦合系统的交互作用和随机能量共振

Lin Min,Zhang Mei-Li,
林敏
,张美丽

物理学报 , 2011,
Abstract: The process of work done on the system by the external force is equivalent to the process of change in system state. The thermodynamic relations of coupled bistable system based on single stochastic trajectories are established by using microcosmic dynamics and macroscopic thermodynamic methods, according to the stochastic dynamics described by Langevin equation. The transmission and conversion relations of energy are quantitatively characterized via interaction of force and work of coupled system, which reveals the coupled system exhibiting stochastic energetic resonance phenomenon. Through analyzing relationship between work done and energy, the physical nature of produced stochastic resonance is further revealed.
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