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二苯乙烯基硫鎓盐中对位-间位取代对光生酸效率的影响及其在双光子聚合中的应用

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二苯乙烯基硫鎓盐中对位-间位取代对光生酸效率的影响及其在双光...

2011年全国高分子学术论文报告会

作者：金明 jean-pierre malval 万德成浦鸿汀同济大学材料学院功能高分子材料研究所 Institut de Sciences des Matériaux de Mulhouse LRC CNRS7228.Université de Haute Alsace15rue Jean Starcky68057 MulhouseFrance

＜正＞本文报告了两种新的硫鎓盐型光生酸剂（PAGs）的合成以及其光化学行为研究结果。研究发现,当硫鎓盐取代在二苯乙烯生色团的间位或者对位时其光化学行为明显不同:间位取代时的光分解效率明显更高,从而导致其光生酸量子产率是对位... 详细信息

＜正＞本文报告了两种新的硫鎓盐型光生酸剂（PAGs）的合成以及其光化学行为研究结果。研究发现,当硫鎓盐取代在二苯乙烯生色团的间位或者对位时其光化学行为明显不同:间位取代时的光分解效率明显更高,从而导致其光生酸量子产率是对位取代时的

关键词：光生酸剂双光子吸收二苯乙烯硫鎓盐双光子聚合

双支化型硫鎓盐类光生酸剂的合成及其性质研究

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双支化型硫鎓盐类光生酸剂的合成及其性质研究

中国化学会第29届学术年会

作者：谢健超金明 jean-pierre malval 万德成同济大学材料科学与工程学院功能高分子材料研究所 Instiute de Sciences des Matériaux de Mulhouse LRC CNRS 7228Université de Haute AlsaceENSCMuMulhouse68093

本文报告了双支化结构硫鎓盐类光生酸剂(PAGs)的合成及其光学性质研究,并通过Gaussian 09软件计算得到分子的理论能级分布及光学性质。研究表明具有双支化结构的PAGs表现出比单支化结构的PAGs更优异的性能,例如摩尔消光系数的提高、最... 详细信息

本文报告了双支化结构硫鎓盐类光生酸剂(PAGs)的合成及其光学性质研究,并通过Gaussian 09软件计算得到分子的理论能级分布及光学性质。研究表明具有双支化结构的PAGs表现出比单支化结构的PAGs更优异的性能,例如摩尔消光系数的提高、最大吸收波长红移(39314nm)、生酸量的倍增等等。另外,支化结构增大了分子的双光子吸收截面,使这类PAGs具有更好的双光子生酸能力。所有这些性能均使用Gaussian 09软件进行了模拟,得到了与实验值相匹配的结果,例如通过计算结果中LUMO和HOMO等能级的分析,进一步解释了分子的光生酸机理。该研究对于设计和制备性能优异的硫鎓盐PAGs具有一定的指导意义。

关键词：光生酸剂双支化理论计算

硫鎓盐取代乙氧基二苯乙烯光生酸剂:对-间位取代对光生酸量子产率的影响研究

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硫鎓盐取代乙氧基二苯乙烯光生酸剂:对-间位取代对光生酸量子产率...

中国化学会第28届学术年会

作者：徐浩然金明 jean-pierre malval 万德成浦鸿汀同济大学材料学院功能高分子材料研究所 Instiute de Sciences des Matériaux de Mulhouse LRCCNRS 7228Université de Haute Alsace

＜正＞本文报告了两种新的二苯乙烯基硫鎓盐型光生酸剂（PAGs）的合成以及其光化学行为研究结果。研究发现,当硫鎓盐间位取代时的光分解效率明显更高,其光生酸量子产率是对位取代时的2.4倍。根本原因在于取代位置影响了分子的前线轨道... 详细信息

＜正＞本文报告了两种新的二苯乙烯基硫鎓盐型光生酸剂（PAGs）的合成以及其光化学行为研究结果。研究发现,当硫鎓盐间位取代时的光分解效率明显更高,其光生酸量子产率是对位取代时的2.4倍。根本原因在于取代位置影响了分子的前线轨道的性质,在保证其最低占有轨道（LUMO）是σ*的基础上,增加了能级

关键词：光生酸剂双光子吸收硫鎓盐二苯乙烯

单光子和双光子高效激发的二苯乙烯类硫鎓盐型光生酸剂

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单光子和双光子高效激发的二苯乙烯类硫鎓盐型光生酸剂

中国化学会第28届学术年会

作者：金明徐浩然 jean-pierre malval 万德成浦鸿汀同济大学材料学院功能高分子材料研究所 Instiute de Sciences des Matériaux de Mulhouse LRCCNRS 7228Université de Haute Alsace

＜正＞本文报告了以取代二苯乙烯为骨架的新的硫鎓盐型光生酸剂（PAGs）的合成以及其光化学行为研究结果。研究发现,二苯乙烯大π共轭基团的引入使硫鎓盐型光生酸剂的最大吸收波长红移到380-400nm,在紫外-可见光和近红外激光激发下都表... 详细信息

＜正＞本文报告了以取代二苯乙烯为骨架的新的硫鎓盐型光生酸剂（PAGs）的合成以及其光化学行为研究结果。研究发现,二苯乙烯大π共轭基团的引入使硫鎓盐型光生酸剂的最大吸收波长红移到380-400nm,在紫外-可见光和近红外激光激发下都表现出优良的光生酸性质。不同的取代基和取代基不同的取代位置都对光

关键词：光生酸剂硫鎓盐二苯乙烯双光子激发

Re-evaluation of recent research on metabolic utilization of energy in poultry: Recommendations for a net energy system for broilers

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Animal Nutrition 2024年第1期16卷 62-72页

作者： jean Noblet Aye-Cho Tay-Zar Shu-Biao Wu Pairat Srichana pierre Cozannet pierre-Andre Geraert Mingan Choct INRAE Charoen Pokphand Foods Public Company Limited (CPF) School of Environmental and Rural Science University of New England Adisseo France S.A.S.

Different energy systems have been proposed for energy evaluation of feeds for domestic animals. The oldest and most commonly used systems take into account the fecal energy loss to obtain digestible energy(DE), and fecal, urinary and fermentation gases energy losses to calculate metabolizable energy(ME). In the case of ruminants and pigs, the net energy(NE) system, which takes into account the heat increment associated with the metabolic utilization of ME, has progressively replaced the DE and ME systems over the last 50 years. For poultry, apparent ME(AME) is used exclusively and NE is not yet used widely. The present paper considers some important methodological points for measuring NE in poultry feeds and summarizes the available knowledge on NE systems for poultry. NE prediction equations based on a common analysis of three recent studies representing a total of 50 complete and balanced diets fed to broilers are proposed; these equations including the AME content and easily available chemical indicators have been validated on another set of 30 diets. The equations are applicable to both ingredients and complete diets. They rely primarily on an accurate and reliable AME value which then represents the first limiting predictor of NE value. Our analysis indicates that NE would be a better predictor of broiler performance than AME and that the hierarchy between feeds is dependent on the energy system with a higher energy value for fat and a lower energy value for protein in an NE system. Practical considerations for implementing such an NE system from the commonly used AME or AMEn(AME adjusted for zero nitrogen balance) systems are presented. In conclusion, there is sufficient information to allow the implementation of the NE concept in order to improve the accuracy of feed formulation in poultry.

关键词： Poultry Feed evaluation Net energy Energy system

Monitoring absolute vertical land motions and absolute sea-level changes from GPS and tide gauges data over French Polynesia

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Geodesy and Geodynamics 2024年第1期15卷 13-26页

作者： Xianjie Li jean-pierre Barriot Bernard Ducarme Marania Hopuare Yidong Lou Geodesy Observatory of Tahiti University of French PolynesiaFaa'a 98702French Polynesia Catholic University of Louvain Georges Lemaître Centre for Earth and Climate Research(ELI)1348 Louvain-la-NeuveBelgium GNSS Research Center Wuhan UniversityWuhan 430079China State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhan 430079China

In this study,we estimate the absolute vertical land motions at three tidal stations with collocated Global Navigation Satellite System(GNSS)receivers over French Polynesia during the period 2007-2020,and obtain,as ancillary results,estimates of the absolute changes in sea level at the same locations.To verify our processing approach to determining vertical motion,we first modeled vertical motion at the International GNSS Service(IGS)THTI station located in the capital island of Tahiti and compared our estimate with previous independent determinations,with a good agreement.We obtained the following estimates for the vertical land motions at the tide gauges:Tubuai island,Austral Archipelago-0.92±0.17 mm/yr,Vairao village,Tahiti Iti:-0.49±0.39 mm/yr,Rikitea,Gambier Archipelago-0.43±0.17 mm/yr.The absolute variations of the sea level are:Tubuai island,Austral Archipelago 5.25±0.60 mm/yr,Vairao village,Tahiti Iti:3.62±0.52 mm/yr,Rikitea,Gambier Archipelago 1.52±0.23 mm/yr.We discuss these absolute values in light of the values obtained from altimetric measurements and other means in French Polynesia.

关键词： GPS Tide gauges Sea level changes Vertical land motion

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It’s not all in your feet: Improving penalty kick performance with humanavatar interaction and machine learning

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The Innovation 2024年第2期5卷 115-121页

作者： jean-Luc Bloechle Julien Audiffren Thibaut Le Naour Andrea Alli Dylan Simoni Gabriel Wüthrich jean-pierre Bresciani Control and Perception Laboratory University of FribourgBd Perolles 901700 FribourgSwitzerland Motion-up Le PrismePlace Albert Einstein56000 VannesFrance FC Basel 1893 Birsstrasse 320A4002 BaselSwitzerland

Penalty kicks are increasingly decisive in major international football competitions.Yet,over 30%of shootout kicks are missed.The outcome of the kick often relies on the ability of the penalty taker to exploit anticipatory movements of the goalkeeper to redirect the kick toward the open side of the goal.Unfortunately,this ability is difficult to train using classical methods.We used an augmented reality simulator displaying an holographic goalkeeper to test and train penalty kick performance with 13 young elite players.Machine learning algorithms were used to optimize the learning rate by maintaining an optimal level of training difficulty.Ten training sessions of 20 kicks reduced the redirection threshold by 120 ms,which constituted a 28%reduction with respect to the baseline threshold.Importantly,redirection threshold reduction was observed for all trained players,and all things being equal,it corresponded to an estimated 35%improvement of the success rate.

关键词： kick penalty learning

Prediction of net energy of feeds for broiler chickens

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Animal Nutrition 2024年第1期16卷 241-250页

作者： Aye-Cho Tay-Zar Manoosak Wongphatcharachai Pairat Srichana pierre-André Geraert jean Noblet Charoen Pokphand Foods Public Company Limited (CPF) Adisseo France S.A.S. INRAE

Net energy(NE) enables the prediction of more accurate feed energy values by taking into account the heat increment which is approximately 25% of apparent metabolizable energy(AME) in poultry.Nevertheless, application of NE in poultry industry has not been practiced widely. To predict the NE values of broiler diets, 23 diets were prepared by using 13 major ingredients(wheat, corn, paddy rice,broken rice, cassava pellets, full-fat soybean, soybean meal, canola meal, animal protein, rice bran, wheat bran, palm kernel meal and palm kernel oil). The diets were formulated in order to meet the birds' requirements and get a wide range of chemical compositions(on DM basis; 33.6% to 55.3% for starch;20.8% to 28.4% for CP, 2.7% to 10.6% for ether extract [EE] and 7.0% to 17.2% for NDF), with low correlations between these nutrients and low correlations between the inclusion levels of ingredients allowing for the calculation of robust prediction equations of energy values of diets or ingredients. These diets were fed to Ross 308 broilers raised in 12 open-circuit respiratory chambers from 18 to 23 d of age(4 birds per cage) and growth performance, diet AME content and heat production were measured, and dietary NE values were calculated. The trial was conducted on a weekly basis with 12 diets measured each week(1per chamber), 1 of the 23 diets(reference diet) being measured each week. Each diet was tested at least 8times. In total, 235 energy balance data values were available for the final calculations. Growth performance, AME(15.3 MJ/kg DM on average) and AME/GE(79.4% on average) values were as expected. The NE/AME value averaged 76.6% and was negatively influenced by CP and NDF and positively by EE in connection with efficiencies of AME provided by CP, EE and starch for NE of 73%, 87% and 81%,respectively. The best prediction equation was: NE =(0.815 × AME)—(0.026 × CP) +(0.020 × EE)—(0.024 × NDF) with NE and AME as MJ/kg DM, and CP, EE and NDF as % of DM. The NE prediction equations from this study agree with other recen

关键词： Net energy Broiler Poultry Feed evaluation Energy system

Liver surface depressions in the presence of diaphragmatic muscular bands on trans-illumination

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World Journal of Experimental Medicine 2024年第2期14卷 5-10页

作者： Shamir O Cawich Michael T Gardner Ramanand Shetty jean pierre Louboutin Zenica Dabichan Shaneeta Johnson Department of Surgery University of the West IndiesSt AugustineTrinidad and Tobago Section of Anatomy Department of Basic Medical SciencesUniversity of the West IndiesKingston KIN7Jamaica Department of Surgery Morehouse School of MedicineAtlantaGA 30310United States

Traditional descriptions of liver anatomy refer to a smooth,convex surface contacting the diaphragm.Surface depressions are recognized anatomic variants.There are many theories to explain the cause of the depressions.... 详细信息

关键词： Liver Anatomy Depressions Fissure Groove Sulcus Variant