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Chestnut tannin:New use,research and bioeconomy

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Journal of Bioresources and Bioproducts 2024年第3期9卷 246-252页

作者： Rosaria Ciriminna Francesco Meneguzzo Giovanna Li petri Cosimo Meneguzzo Giuseppe Angellotti Mario Pagliaro Istituto per lo Studio dei Materiali Nanostrutturati CNRvia U.La Malfa 15390146 PalermoItaly Istituto per la Bioeconomia CNRvia Madonna del Piano 1050019 Sesto Fiorentino(FI)Italy HyRes Srl via Salvator Rosa 1882100 BeneventoItaly

Chestnut tannin,extracted from the bark or wood of chestnut trees,possesses unique properties that make it valuable in various *** serves as a natural source of tannins,which are widely used in the production of leather,textiles,and wood *** research continues to explore its potential applications,chestnut tannin remains a promising resource with diverse industrial *** new use,research and bioeconomy aspects,this study provides a unified perspective on chestnut *** advanced applications will likely emerge shortly.

关键词： Tannin Chestnut Bioeconomy Tannin market Hydrolysable tannin

Elevated nitrogen and co-evolution history with competitors shape the invasion process of Galinsoga quadriradiata

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Journal of Plant Ecology 2024年第4期17卷 9-22页

作者： Wen-Gang Zhang Xing-Jiang Song Laís petri Gang Liu Xiao-Yan Chen Rui-Ling Liu Fang-Fang Huang Jia-Bin Zou Zhi-Hong Zhu College of Life Sciences Shaanxi Normal UniversityXi’an 710119China School for Environment and Sustainability University of MichiganAnn ArborMI 48109USA Research Center for UAV Remote Sensing Shaanxi Normal UniversityXi’an 710119China Changqing Teaching&Research Base of Ecology Shaanxi Normal UniversityXi’an 710119China Guangdong Provincial Key Laboratory of Silviculture Protection and UtilizationGuangdong Academy of ForestryGuangzhou 510520China

Invasive plants usually experience population differentiation as they expand from their initial invasive range to the ***,invasive plants usually encounter competitors which shared different co-evolutionary histories with *** factors may lead to varying responses of invasive plant populations to elevated nitrogen deposition during ***,this issue has received limited attention in prior *** address these challenges,we conducted a greenhouse experiment to investigate how population differentiation of Galinsoga quadriradiata interacts with the presence of various competitors in response to increased nitrogen *** types(new or old that shared short or long co-evolutionary history with the invader,respectively)were set to compete with the invasive central and edge populations under different nitrogen addition *** from the central population of ***,originating from the initial invasion range,showed greater total mass,reproduction and interspecific competitiveness compared with the edge *** addition improved growth and reproductive performance in both populations,and the central population had a stronger response compared with the edge *** performance of *** was inhibited more effectively by old competitors than new *** results indicate that population differentiation occurs in terms of growth and competitiveness during the range expansion of ***,with the central population exhibiting superior ***-evolutionary history with competitors is considered unfavorable for invasive plants in this *** results highlight the combined effects of population differentiation in invasive species and their co-evolution history with competitors in the context of global change factors.

关键词： Galinsoga quadriradiata central population edge population interspecific competition population differentiation elevated nitrogen

豌豆根瘤菌SCAU P10的接种效果、促生特性及系统发育研究

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四川农业大学学报 2024年第2期42卷 306-314页

作者：张艳琴陈远学 PENTTINEN petri 刘明吴超徐开未四川农业大学资源学院成都611130

【目的】为获得共生固氮能力强、抗逆促生效果好、宿主识别范围广的高效豌豆根瘤菌。【方法】以前期初筛的优良豌豆根瘤菌SCAU P10为材料,在四川省成都市金堂县和广元市剑阁县验证SCAU P10的田间接种效果,采用常规方法测定菌株的抗逆促... 详细信息

【目的】为获得共生固氮能力强、抗逆促生效果好、宿主识别范围广的高效豌豆根瘤菌。【方法】以前期初筛的优良豌豆根瘤菌SCAU P10为材料,在四川省成都市金堂县和广元市剑阁县验证SCAU P10的田间接种效果,采用常规方法测定菌株的抗逆促生能力,用水培法研究菌株与四川主要豌豆品种“长寿仁”“中豌6号”“无须豆尖1号”“云豌91号”的共生匹配性,通过16S rRNA基因、持家基因、共生基因序列分析研究菌株的系统发育地位。【结果】金堂县豌豆接种供试菌株SCAU P10的鲜豌豆籽粒(青豌豆)显著增产32.3%,两试验地接种供试菌株的根瘤数、株高、绿肥产量(植株鲜重)、饲草产量(植株干重)、植株氮钾积累量均较不接种对照(CK)显著增加。抗逆促生特性试验表明,菌株耐酸耐碱能力均较强,可在pH 4.0~10.0条件下生长,耐盐能力较差,仅能在NaCl浓度0.01%~0.6%条件下生长,能分泌生长素(IAA),具有较强的溶磷(卵磷脂、磷酸钙、磷酸铁、磷酸铝)和溶钾能力。匹配性试验表明,供试菌株SCAU P10与四川4个主要豌豆品种均高效匹配。16S rRNA基因、持家基因和共生基因综合分析表明,菌株SCAU P10归属于Rhizobium sophorae,且经历了共生基因的水平转移。【结论】豌豆根瘤菌Rhizobium sophorae SCAU P10与四川主要豌豆品种共生匹配性好,具有溶磷溶钾和分泌IAA的能力,pH生长范围较广,可有效促进豌豆生长及养分吸收。研究结果可为四川地区豌豆根瘤菌菌剂的研制、推广和应用提供一定的科学依据。

关键词：豌豆根瘤菌田间验证抗逆促生性共生匹配性系统发育

A new implementation of FLEXPART with Enviro-HIRLAM meteorological input,and a case study during a heavy air pollution event

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Big Earth Data 2024年第2期8卷 397-434页

作者： Benjamin Foreback Alexander Mahura petri Clusius Carlton Xavier Metin Baykara Putian Zhou Tuomo Nieminen Victoria Sinclair Veli-Matti Kerminen Tom V.Kokkonen Simo Hakala Diego Aliaga Risto Makkonen Alexander Baklanov Roman Nuterman Men Xia Chenjie Hua Yongchun Liu Markku Kulmala Pauli Paasonen Michael Boy Aerosol and Haze Laboratory Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijingChina Institute for Atmospheric and Earth System Research/Physics Faculty of ScienceUniversity of HelsinkiHelsinkiFinland Division of Nuclear Physics Department of PhysicsLund UniversityLundSweden Swedish Meteorological and Hydrological Institute(SMHI) Research DepartmentUnit of Meteorology/Environment and ClimateNorrköpingSweden Climate and Marine Sciences Department Eurasia Institute of Earth SciencesIstanbul Technical UniversityIstanbulTurkey Department of Physics Faculty of ScienceUniversity of HelsinkiHelsinkiFinland Department of Meteorology(MISU)and Bolin Centre for Climate Research Stockholm UniversityStockholmSweden Climate System Research Unit Finnish Meteorological InstituteHelsinkiFinland Science and Innovation Department World Meteorological Organization(WMO)GenevaSwitzerland Niels Bohr Institute University of CopenhagenCopenhagenDenmark Joint International Research Laboratory of Atmospheric and Earth System Sciences School of Atmospheric SciencesNanjing UniversityNanjingChina School of Engineering Science Lappeenranta-Lahti University of Technology(LUT)LappeenrantaFinland Atmospheric Modelling Centre Lahti Lahti University CampusLahtiFinland

We integrated Enviro-HIRLAM(Environment-High Resolution Limited Area Model)meteorological output into FLEXPART(FLEXible PARTicle dispersion model).A FLEXPART simulation requires meteorological input from a numerical weather prediction(NWP)*** publicly available version of FLEXPART can utilize either ECMWF(European Centre for Medium-range Weather Forecasts)Integrated Forecast System(IFS)forecast or reanalysis NWP data,or NCEP(*** Center for Environmental Prediction)Global Forecast System(GFS)forecast or reanalysis NWP *** primary benefits of using Enviro-HIRLAM are that it runs at a higher resolution and accounts for aerosol effects in meteorological *** compared backward trajectories gener-ated with FLEXPART using Enviro-HIRLAM(both with and without aerosol effects)to trajectories generated using NCEP GFS and ECMWF IFS meteorological inputs,for a case study of a heavy haze event which occurred in Beijing,China in November *** found that results from FLEXPART were considerably different when using different meteorological *** aerosol effects were included in the NWP,there was a small but noticeable differ-ence in calculated ***,when looking at potential emission sensitivity instead of simply expressing trajectories as lines,additional information,which may have been missed when looking only at trajectories as lines,can be inferred.

关键词： Atmospheric and chemical transport modelling trajectory and particle dispersion modelling severe air pollution episode FLEXPART Enviro-HIRLAM

Activation of commercial Pt/C catalyst toward glucose electro-oxidation by irreversible Bi adsorption

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Journal of Energy Chemistry 2018年第5期27卷 1446-1452页

作者： petri Kanninen Tanja Kallio Department of Chemistry and Material Science Aalto University P.O. Box 16100 00076 Aalto. Finland Applied Electrochemistry KTH-Royal Institute of Technology Teknikringen 42 10044 Stockholm Sweden

The effect of irreversibly adsorbed Bi on commercial Pt/C catalyst toward glucose electro-oxidation re- action （GOR） in different electrolytes （acidic, neutral, alkaline） is studied. Bi is successfully deposited on Pt/C from Bi3＋ containing acidic solution from 0 to 90% coverage degree. The stability of the Bi layer in acid and alkaline corresponded to previous studies and started to dissolve at 0.7 V and 0.8 V versus re- versible hydrogen electrode （RIIE）, respectively. However, in neutral phosphate buffer the layer showed remarkable stability to at least 1.2V versus RHE. Bi modification at low （20%） and high （80%） coverage showed the highest increase in the activity of Pt/C toward GOR by a factor up to 7 due to the increased poisoning resistance of the modified catalyst. The effect of poisoning was especially reduced at high Bi coverage （80%）, which shows that adsorbate blocked by Bi through the third-body effect is effective. Finally, with or without Bi modification GOR on PtIC was most active in alkaline conditions.

关键词： Glucose electro-oxidation Platinum Bismuth Catalyst poisoning Renewable resources

The myelin membrane-associated enzyme 2′,3′-cyclic nucleotide 3′-phosphodiesterase:on a highway to structure and function

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Neuroscience Bulletin 2014年第6期30卷 956-966页

作者： Arne Raasakka petri Kursula Department of Biochemistry and Biocenter Oulu University of OuluOuluFinland Department of Chemistry University of HamburgHamburgGermany

The membrane-anchored myelin enzyme 2′,3′-cyclic nucleotide 3′-phosphodiesterase（CNPase） was discovered in the early 1960 s and has since then troubled scientists with its peculiar catalytic activity and high expression levels in the central nervous system. Despite decades of research, the actual physiological relevance of CNPase has only recently begun to unravel. In addition to a role in myelination, CNPase is also involved in local adenosine production in traumatic brain injury and possibly has a regulatory function in mitochondrial membrane permeabilization. Although research focusing on the CNPase phosphodiesterase activity has been helpful, several open questions concerning the protein function in vivo remain unanswered. This review is focused on past research on CNPase, especially in the fields of structural biology and enzymology, and outlines the current understanding regarding the biochemical and physiological significance of CNPase, providing ideas and directions for future research.

关键词： 2′,3′-cyclic nucleotide 3′-phosphodiesterase calmodulin central nervous system cytoskeleton myelin proteins RNA

Numerical and Experimental Modelling of Gas Flow and Heat Transfer in the Air Gap of an Electric Machine

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Journal of Thermal Science 2004年第3期13卷 264-278页

作者： Maunu KUOSA petri SALLINEN Jaakko LARJOLA Lappeenranta University of Technology (LUT) Department of Energy and Environmental Technology P.O. Box 20 53851 Lappeenranta FinlandLappeenranta University of Technology (LUT) Department of Energy and Environmental Technology P.O. Box 20 53851 Lappeenranta FinlandLappeenranta University of Technology (LUT) Department of Energy and Environmental Technology P.O. Box 20 53851 Lappeenranta Finland

This work deals with the cooling of high-speed electric machines, such as motors and generators, through an air gap. It consists of numerical and experimental modeling of gas flow and heat transfer in an annular channel. Velocity and temperature profiles are modeled in the air gap of a high-speed test machine. Friction and heat transfer coefficients are presented in a large velocity range. The goals are reached acceptably using numerical and experimental research. The velocity field by the numerical method does not match in every respect the estimated flow mode. The absence of secondary Taylor vortices is evident when using time averaged numerical simulation.

关键词： heat transfer electric machine air gap friction coefficient CFD.

Spruce forest stands in a stationary state

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Journal of Forestry Research 2019年第4期30卷 1167-1178页

作者： petri P.K?renlampi University of Eastern Finland

We present stationarity criteria for forest stands,and establish embodiments using a Norwegian empirical stand development *** natural stationary states only slightly differ from the outcome of long-term simulations previously implemented using the same empirical *** interference in terms of diameter-limit cutting is ***,stationary states differing from the natural one *** volume,growth and monetary value appear low but the financial return rate may be *** yield and financial return clearly contradict each other,the former arising from harvesting large trees,the latter from frequent removal of small *** exponential tree size distribution does not appear to comply with the stationarity criterion.

关键词： Growth Plenterwald(selection cutting) Recruitment Stand development Yield

Fluid dynamic modeling of a free piston engine with labyrinth seals

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Journal of Thermal Science 2010年第2期19卷 141-147页

作者： Jaakko Larjola Juha Honkatukia petri Sallinen Jari Backman Lappeenranta University of Technology P.O.Box 2053851 Lappeenranta

Preliminary design and simulation of a free piston engine suitable for small-scale energy production in distributed energy systems is presented in this *** properties,particularly the properties of gas seals of the engine are simulated using a simulation program developed for this case,and the results are utilized in preliminary main design parameter *** engine simulation program was developed by combining and modifying the source codes of the simulation and calculation programs obtained from Helsinki University of Technology,Tampere University of Technology,and Lappeenranta University of *** of the contact-free labyrinth seal used in the piston,the efficiency of the motor is lower than the efficiency of a conventional motor with oil lubricated piston *** the other hand,the lack of bearing losses,and the lack of losses associated with a crankshaft system and a gearbox,as well as the lack of lubrication oil expenses,compensates this *** a net result,this new motor would perform slightly better than the conventional *** completely oil-free,it is very environmentally friendly,and its exhaust gases are completely free of oil residuals which are causing problems in normal gas motors.

关键词： free piston engine distributed energy systems simulation labyrinth seal