Letteratura scientifica selezionata sul tema "Di yi zhong ji chang"

The 17th book of Lüshi chunqiu 呂氏春秋, compiled by Lü Buwei 呂不韋 inthe 3rd c. B.C., comprises two lists of officials who are credited with initiatingcertain cultural phenomena. In this study, I explore the available informationon these 26 individuals (Da Nao 大橈, Qian Ru 黔如, Rong Cheng 容成, XiHe 羲和, Shang Yi 尚儀, Hou Yi 后益, Hu Cao 胡曹, Yi Yi 夷羿, Zhu Rong祝融, Yi Di 儀狄, Gao Yuan 高元, Yu Xu 虞姁, Bo Yi 伯益, Chi Ji 赤冀, ChengYa 乘雅, Han Ai 寒哀, Wang Hai 王亥, Shi Huang 史皇, Wu Peng 巫彭, WuXian巫咸, Xi Zhong 奚仲, Cang Jie 蒼頡, Houji 后稷, Gao Yao 皋陶, Kunwu昆吾, Gun 鯀), and propose a new interpretation of their presence in this earlysource.

Graphene-based composites have received a great deal of attention in recent year because the presence of graphene can enhance the conductivity, strength of bulk materials and help create composites with superior qualities. Moreover, the incorporation of metal oxide nanoparticles such as Fe3O4 can improve the catalytic efficiency of composite material. In this work, we have synthesized a composite material with the combination of reduced graphene oxide (rGO), and Fe3O4 modified tissue-paper (mGO-PP) via a simple hydrothermal method, which improved the removal efficiency of the of methylene blue (MB) in water. MB blue is used as the model of contaminant to evaluate the catalytic efficiency of synthesized material by using a Fenton-like reaction. The obtained materials were characterized by SEM, XRD. The removal of materials with methylene blue is investigated by UV-VIS spectroscopy, and the result shows that mGO-PP composite is the potential composite for the color removed which has the removal efficiency reaching 65% in acetate buffer pH = 3 with the optimal time is 7 h.
 Keywords
 Graphene-based composite, methylene blue, Fenton-like reaction.
 References
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by Leung Chu Wah.<br>Parallel title in Chinese characters.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1992.<br>Includes bibliographical references (leaves 181-182).<br>Acknowledgements --- p.vi<br>Abstract --- p.vii<br>Chapter 1. --- Introduction --- p.1<br>Chapter 2. --- Evaluation of Far Field by Lai and Char's Method --- p.6<br>Chapter 2.1 --- Far Field Expression --- p.6<br>Chapter 2.2 --- Radiation Power --- p.12<br>Chapter 2.3 --- Gaussian Curvature and Point of Stationary Phase of Cylindrically Symmetry DWS --- p.16<br>Figures for Chapter2 --- p.19<br>Chapter 3. --- Synchrotron Radiation in Vacuum Using Lai and Char's Method --- p.20<br>Chapter 3.1 --- The Far Field --- p.20<br>Chapter 3.2 --- Current Density for a Gyrating Charge --- p.22<br>Chapter 3.3 --- Radiation Power --- p.25<br>Chapter 3.4 --- Some Angular Properties of Synchrotron Radiation --- p.29<br>Chapter 3.5 --- Total Power Emitted in N-th Harmonic --- p.32<br>Chapter 3.6 --- Total Power Emitted in All Harmonics --- p.33<br>Figures for Chapter3 --- p.36<br>Chapter 4. --- Synchrotron Radiation in a Cold Magnetoplasma --- p.42<br>Chapter 4.1 --- DWS for a Cold Magnetoplasma --- p.42<br>Chapter 4.2 --- Derivatives of kp and Gaussian Curvature of DWS --- p.45<br>Chapter 4.3 --- Group Velocity --- p.46<br>Chapter 4.4 --- Current Density --- p.47<br>Chapter 4.5 --- Point of Stationary Phase --- p.48<br>Chapter 4.6 --- Identification of Different Wave Modes --- p.48<br>Chapter 4.7 --- Radiation Power --- p.49<br>Chapter 4.8 --- Relation with Vacuum Case --- p.53<br>Figures for Chapter4 --- p.56<br>Chapter 5. --- Incoherent Radiation from an Assembly of Charges --- p.79<br>Chapter 5.1 --- Total Incoherent Energy Flux from N Particles --- p.79<br>Chapter 5.2 --- Synchrotron Radiation from Particles with Momentum Distribution --- p.80<br>Chapter 5.3 --- Mono-Energetic Particles with Distributed Parallel Momentum --- p.82<br>Chapter 5.4 --- "Angular Distribution, Frequency Distribution and Total Radiation Power" --- p.87<br>Figures for Chapter5 --- p.88<br>Chapter 6. --- Coherent Radiation from an Assembly of Charges --- p.94<br>Chapter 6.1 --- Bunching Factor --- p.94<br>Chapter 6.2 --- Some Arrangements of Particles --- p.96<br>Chapter 6.2.1 --- Charges Distributed Uniformly over an Arc of Angular Width --- p.96<br>Chapter 6.2.2 --- Charges Distributed Along a Straight Line --- p.100<br>Chapter 6.2.3 --- Charges Distributed Uniformly on a Helical Path --- p.101<br>Chapter 6.2.4 --- Charges Distributed Randomly on an Arc --- p.102<br>Chapter 6.3 --- Effect of Bunching in a Cold Magnetoplasma --- p.104<br>Figures for Chapter6 --- p.105<br>Chapter 7. --- Correction to Radiation Power Formula for Degenerate DWS --- p.113<br>Chapter 7.1 --- Far Field Expression for Degenerate DWS --- p.113<br>Chapter 7.2 --- Radiation Power for Degenerate DWS --- p.115<br>Chapter 7.3 --- Alternate Proof for the Extra Factorin (7.2.11) --- p.118<br>Chapter 7.4 --- Example of Degenerate DWS - Vacuum --- p.120<br>Chapter 8. --- "Ratio of Emitted Power to Received Power, f" --- p.122<br>Chapter 8.1 --- Group Velocity in terms of Derivatives of DWS --- p.122<br>Chapter 8.2 --- Calculation of Derivatives --- p.124<br>Chapter 8.3 --- Expression for f --- p.126<br>Chapter 8.4 --- Alternate Form of f --- p.127<br>Chapter 8.5 --- Examples of Calculating f Using (8.4.1) --- p.129<br>Chapter 8.5.1 --- Isotropic Cold Plasma --- p.129<br>Chapter 8.5.2 --- Cold Magnetoplasma --- p.130<br>Figures for Chapter8 --- p.132<br>Chapter 9. --- Comparison of Far Field by Lai and Chan with that by Others --- p.135<br>Chapter 9.1 --- Expressing the Far Field Ratio in terms of Derivatives of DWS and WS --- p.135<br>Chapter 9.2 --- Far Field Ratio for an Uniaxial Non-Dispersive Medium --- p.137<br>Chapter 9.3 --- Far Field Ratio for an Isotropic Cold Plasma --- p.138<br>Chapter 10. --- Minimum Far Field Distance to a Moving Radiating Source in an Anisotropic and Dispersive Medium --- p.140<br>Chapter 10.1 --- Sub-Dominant Terms of the Far Field --- p.141<br>Chapter 10.2 --- Minimum Far Field Distance --- p.147<br>Chapter 10.3 --- Minimum Far Field Distance in an Isotropic Non-Dispersive Medium --- p.152<br>Chapter 10.4 --- Minimum Far Field Distance in an Isotropic Dispersive Cold Plasma --- p.156<br>Chapter 10.5 --- Minimum Far Field Distance for Alfven Waves in a Cold Magnetoplasma --- p.159<br>Chapter 10.6 --- Comparison of Results by Other Authors --- p.162<br>Figures for Chapter 10 --- p.165<br>Chapter 11. --- Conclusions<br>Chapter Appendix 1. --- Calculation of the Total Power Emitted in Synchrotron Radiation in Vacuum --- p.170<br>Chapter Appendix 2. --- "Derivatives of stix's Parameters and a1,a2 of Equation (4.1.22)-(4.1.23 )" --- p.176<br>Chapter Appendix 3. --- Dispersion Relation for Alfven Wavesin a Cold Magnetoplasma --- p.179<br>References --- p.181