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国外畜牧学（猪与禽） 1990年第4期10卷 46-48页

作者：龚新民 David bobi kennet

笔者在意大利Acri地方管理的繁殖中心采用了一种特殊类型的产仔栏,这种产仔栏是圆形的,见图。最初的想法为什么采用圆形,这里的想法是为了在母猪躺下时减少躯体和产仔栏侧面的接触。采用圆形产仔栏,母猪躯体只有两处同栏缘接触:头和臀。

关键词：圆形产仔栏母猪

Corrosion Inhibition of Aluminium in Gas and Acid Media by Some Chalcone-Based N-(3-Aminopropyl)Imidazoles: TD-DFT-Based FMO, Conceptual DFT, QTAIM and EDA Studies

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Computational Chemistry 2021年第1期9卷 37-63页

作者： Fritzgerald Kogge Bine Stanley Numbonui Tasheh Nyiang kennet Nkungli Research Unit of Noxious Chemistry and Environmental Engineering Department of Chemistry Faculty of Science Univer-sity of Dschang Dschang Cameroon Department of Chemistry Faculty of Science The University of Bamenda Bamenda Cameroon

The efficacy and mode of action of five chalcone-based imidazole derivatives as corrosion inhibitors of aluminium metal in gas-phase and acidic medium have been investigated herein via quantum chemical calculations. Dispersion-corrected DFT (DFT-D3) and time-dependent DFT (TD-DFT) calculations were performed at PBE0/def2-TZVP//PBEh-3c and CAM-B3LYP/def2- TZVP levels of theory, respectively. Conceptual DFT, the quantum theory of atoms-in-molecules (QTAIM) and local energy decomposition (LED) analyses have been performed. The LED analysis was performed at the coupled-cluster singles and doubles with perturbative triples (CCSD(T))/def2-SVP level of theory. Frontier molecular orbital energy gaps calculated using the TD-DFT method are found to lie in the range 3.574 - 4.444 eV, indicative of good adsorption and corrosion inhibition efficacies of the investigated molecules. The interactions between aluminium and the inhibitor molecules studied are found to be energetically favorable, owing to negative computed interaction energy values. Furthermore, QTAIM analysis revealed metal-carbon, metal-oxygen and metal-nitrogen interactions in the inhibitor-aluminium complexes, which are predominantly electrostatic in character, according to LED analysis results. Calculated proton affinities (PAs) have revealed the anticorrosion potentials of the investigated inhibitors in acidic medium, with a noticeable dependency on temperature within the range 273.15 - 343.15 K.

关键词： Density Functional Theory Anticorrosion Inhibitor-Aluminium Interactions Quantum Theory of Atoms-in-Molecules Local Energy Decomposition Analysis

拉斯海马在古代印度洋贸易线上的地位——对拉斯海马诸考古遗址的观察

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故宫博物院院刊 2022年第10期246卷 63-75,140页

作者：翟毅张然王光尧 Derek kennet 王琎(摄影) 吴伟(摄影) 故宫博物院杜伦大学考古系不详

拉斯海马酋长国是阿拉伯联合酋长国的组成国之一,地处波斯湾入海口南岸,扼印度洋与波斯湾的交通要冲。14世纪以后,该地区成为了新忽鲁谟斯王国的组成部分,为伊朗南部的霍尔木兹岛提供物资支持,与该岛有着密切的联系。随着拉斯海马农业... 详细信息

拉斯海马酋长国是阿拉伯联合酋长国的组成国之一,地处波斯湾入海口南岸,扼印度洋与波斯湾的交通要冲。14世纪以后,该地区成为了新忽鲁谟斯王国的组成部分,为伊朗南部的霍尔木兹岛提供物资支持,与该岛有着密切的联系。随着拉斯海马农业、手工业和远洋贸易的兴盛,当地成为了古代西印度洋重要的港口。本文以20世纪拉斯海马地区考古发掘成果为线索,对其在波斯湾与印度洋的海洋贸易的历史变迁加以总结,并通过对该地区出土中国陶瓷的初步梳理,探讨这一地区在古代印度洋国际贸易线上的地位。

关键词：拉斯海马波斯湾考古古代社会经济中国外销瓷

DFT and TD-DFT Study of Bis[2-(5-Amino-[1,3,4]-Oxadiazol-2-yl) Phenol](Diaqua)M(II) Complexes [M = Cu, Ni and Zn]: Electronic Structures, Properties and Analyses

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Computational Chemistry 2015年第3期3卷 29-44页

作者： Nyiang kennet Nkungli Julius Numbonui Ghogomu Ludovid Ngouo Nogheu Shridhar Ramachandra Gadre Laboratory of Noxious Chemistry and Environmental Engineering Department of Chemistry Faculty of Science University of Dschang Dschang Cameroon Department of Chemistry Indian Institute of Technology Kanpur Kanpur India

Ground state geometries, spectral (IR and UV-Vis) properties, analysis of frontier molecular orbitals (FMOs), natural bond orbital (NBO) analysis and molecular electrostatic potential (MEP) surfaces of three transition metal complexes [Cu(AOYP)2(OH2)2] (A), [Ni(AOYP)2(OH2)2] (B) and [Zn-(AOYP)2(OH2)2] (C), have been studied theoretically by the Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT) methods. AOYP is the oxadiazole ligand 2-(5-amino-[1,3,4]-oxadiazol-2-yl)phenol. The geometries of these complexes were initially optimized using two basis sets: LAN2DZ and a generic basis set, the latter of which was selected for subsequent analysis. The stability of the complexes arising from intramolecular interactions and electron delocalization was estimated by natural bond orbital (NBO) analysis. The NBO results showed significant charge transfer from lone pair orbitals on the AOYP donor atoms O19, O21, N15 and N36 to central metal ions in the complexes, as well as to the benzene and oxadiazole rings. The electronic spectrum of (A) showed bands at 752 and 550 nm mainly attributable to ligand-to-metal charge transfer (LMCT) transitions, and a band at 446 nm assigned to a d-d transition. The electronic spectrum of (B) consisted of bands at 540, 463 and 395 nm mainly due to d-d transitions. Calculated electronic bands for (C) occurred at 243, 238 and 235 nm, arising from intraligand charge transfer (ILCT) transitions within AOYP. A good agreement in terms of band positions was found between experimental and calculated absorption spectra of the complexes.

关键词： DFT TD-DFT AOYP Complexes NBO Analysis MEP Surfaces

Structural, Spectral (IR and UV/Visible) and Thermodynamic Properties of Some 3d Transition Metal(II) Chloride Complexes of Glyoxime and Its Derivatives: A DFT and TD-DFT Study

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Computational Chemistry 2016年第4期4卷 119-136页

作者： Ludovid Ngouo Nogheu Julius Numbonui Ghogomu Desire Bikele Mama Nyiang kennet Nkungli Elie Younang Shridhar Ramachandra Gadre Department of Chemistry Faculty of Science University of Dschang Dschang Cameroon Department of Chemistry Faculty of Science University of Douala Douala Cameroon Department of Inorganic Chemistry Faculty of Science University of Yaounde I Yaounde Cameroon Department of Chemistry Indian Institute of Technology Kanpur Kanpur India

Metal complexes bearing vic-dioxime ligands have been extensively used as analytical and biochemical reagents, and are well-known antimicrobial agents. Herein is reported a DFT study on the molecular structures, thermodynamic properties, chemical reactivity and spectral properties of some 3d metal(II) chloride complexes of glyoxime. The functionals B3LYP and CAM-B3LYP have each been used in conjunction with LANL2DZ for the metal(II) ions (Fe2+, Co2+, Ni2+ and Cu2+) and the Poplestyle basis set 6-31G+(d,p) for the rest of the elements, to perform theoretical calculations. The metal complexation abilities of the glyoxime ligands studied in this work have been evaluated on the basis of metal-ligand binding energies. These ligands were found to have high affinities towards Ni(II) and Fe(II) ions, and all complexation reactions were found to be thermodynamically feasible. Ligand-to-metal electron donations in the complexes studied have been revealed by natural population analysis. The fully optimized geometries of the complexes have adopted square planar structures around the central metal ions. On the basis of orbital composition analysis, the UV-Vis electronic absorption bands of these molecules have been attributed mainly to MLCT, LMCT and d-d electronic transitions involving metal-based orbitals.

关键词： Glyoxime Complexes DFT Binding Energy Electronic Absorption

拉斯海马酋长国朱尔法遗址出土中国瓷器的初步研究

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故宫博物院院刊 2023年第8期 31-47,132页

作者：无蒋艺(文/摄影) 翟毅王光尧丁银忠邢增锐苏天敏王琎(摄影) Ahmed Al Tenaiji Derek kennet 故宫博物院阿联酋拉斯海马古物与博物馆部英国杜伦大学考古系故宫博物院器物部故宫博物院文保科技部故宫博物院考古部不详

2019年11-12月,故宫博物院与阿联酋拉斯海马酋长国古物与博物馆部、英国杜伦大学考古系联合对拉斯海马酋长国国家博物馆馆藏20世纪70、80年代英国考古学者在阿尔玛塔夫遗址调查、采集的698片陶瓷标本进行整理,并采用X射线便携能谱仪对... 详细信息

2019年11-12月,故宫博物院与阿联酋拉斯海马酋长国古物与博物馆部、英国杜伦大学考古系联合对拉斯海马酋长国国家博物馆馆藏20世纪70、80年代英国考古学者在阿尔玛塔夫遗址调查、采集的698片陶瓷标本进行整理,并采用X射线便携能谱仪对部分陶瓷标本进行了检测。本文选取其中的260片中国瓷器标本,通过类型学研究、胎釉成分分析,初步判定了标本的时代与产地,并讨论了14-17世纪中国陶瓷输出的相关问题,揭示了朱尔法古港在古代印度洋贸易航线中具有的国际性地位。

关键词：朱尔法遗址阿联酋拉斯海马酋长国中国瓷器

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Amery冰架DEM及其海洋冰分布研究

地理与地理信息科学 2006年第6期22卷 71-74页

作者：王亚凤温家洪刘吉英 kennet C.HJEZEK BEAT M.ACATHSO 上海师范大学地理系 Byrd Polar Research Center The Ohio State UniversityColumbus OH43210USA

Amery冰架是东南极最大的冰架。利用克里格插值法对Amery冰架地区的ICESat激光高度计数据进行空间插值,建立该地区的DEM。依据流体静力学平衡原理构建Amery冰架的冰厚度图,结合冰雷达测厚数据,获得了海洋冰的空间分布。结果显示Amery冰... 详细信息

Amery冰架是东南极最大的冰架。利用克里格插值法对Amery冰架地区的ICESat激光高度计数据进行空间插值,建立该地区的DEM。依据流体静力学平衡原理构建Amery冰架的冰厚度图,结合冰雷达测厚数据,获得了海洋冰的空间分布。结果显示Amery冰架下的海洋冰主要位于西北部,体积为2.38×1012m3,约占冰架总体积的5.6%,冰架最大厚度为230 m。

关键词： ICESat激光高度计 DEM 海洋冰 Amery冰架南极

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拉斯海马阿尔马塔夫遗址2019年考古收获

故宫博物院院刊 2020年第5期 92-107,111页

作者：翟毅邢增锐(绘图/摄影) 丁银忠王光尧张然(绘图/摄影) 张希章苏天敏彭博王思阳张宇亮胡子尧胡兆辉 Ahmed Hilal Khan Tibor Paluch Derek kennet 邵会秋故宫博物院阿联酋拉斯海马古物与博物馆部英国杜伦大学考古系吉林大学考古学院

2019年11月-12月,故宫博物院考古研究所和阿联酋拉斯海马古物与博物馆部、英国杜伦大学考古系及吉林大学考古学院组成联合考古队,对阿尔马塔夫遗址进行了全面的考古调查,并在南区、北区进行发掘,共揭露遗迹50余处,出土物上万件。考古队... 详细信息

2019年11月-12月,故宫博物院考古研究所和阿联酋拉斯海马古物与博物馆部、英国杜伦大学考古系及吉林大学考古学院组成联合考古队,对阿尔马塔夫遗址进行了全面的考古调查,并在南区、北区进行发掘,共揭露遗迹50余处,出土物上万件。考古队对部分采集和发掘出土的陶瓷标本采用X射线便携能谱仪检测,从外观特征和化学成分两方面证实了阿尔马塔夫遗址存在明初御窑产品。此次考古工作不仅进一步展现了朱尔法古港在环印度洋贸易航路上的重要商业地位,而且提供了明代郑和使团直接到访此地的重要线索。

关键词：朱尔法阿尔马塔夫明初御窑产品郑和