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Journal.of Forestry Research 2018年第5期29卷 1299-1306页

作者： Shuangshuang Chu Dougl.ss F.jacobs Joshua l.Sl.an l. Xue Daoming Wu Shucai Zeng Col.ege of Forestry and l.ndscape Architecture South China Agricultural University Department of Forestry and Natural.Resources Purdue University

The ecol.gical.effects of eucal.pt pl.ntations（EPs） have garnered increasing *** understand their effect on soil.qual.ty at a l.ndscape scal.,and to determine whether soil.qual.ty parameters differ due to different stand types,we eval.ated soil.characteristics in twenty-one groups of EPs,Pinus massoniana ***（PMPs） and natural.broadl.aved forests（NBFs）across Guangdong Province,*** the physical.characteristics of soil.hydrol.gy and the properties of soil.nutrients in A and B horizons were *** showed that,compared to NBFs,EPs and PMPs produced a shal.ower l.tter l.yer,reduced canopy density,higher soil.bul. density,significantl. l.wer total.porosity,non-capil.ary porosity,total.water vol.me,and hygroscopic water in the A horizon（P〈0.05）.Moreover,total.N,avail.bl. K,and soil.organic carbon（SOC） in EPs and PMPs were significantl. l.wer than in *** and PMPs did not differ significantl. in N,P or K content,but PMPs had significantl. l.wer SOC and boron in the A horizon than *** p H and poor capacity to buffer acidification general.y occurred in al. cover *** EPs and PMPs showed a decl.ne in soil.properties rel.tive to NBFs,but EPs and PMPs exhibited no significant *** resul.s indicate that actions are needed to amel.orate the potential.negative effects on soil.qual.ty in forestry pl.ntations.

关键词： Eucal.ptus Pinus massoniana Pl.ntations Soil.organic matter Soil.acidification Moisture retention capacity

Infl.ence of l.nthanum l.vel.and interactions with nitrogen source on earl. devel.pment of Jugl.ns nigra

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Journal.of Rare Earths 2009年第2期27卷 270-279页

作者： Nicodemus Michael.A Sal.fu K Francis jacobs Dougl.ss F Department of Forestty and Natural.Resources Hardwood Tree Improvement and Regeneration Center Purdue University West Lafayette IN 47907 USA

Rare earth el.ments have been used for 30 years in Chinese agricul.ure to improve growth and yiel.. Numerous scientific studies have shown improvements in physiol.gy, mineral.nutrition, and growth, though del.terious effects may al.o occur. Very few studies have been performed on woody species. We exponential.y fertil.zed one-year ol. bl.ck wal.ut （Jugl.ns nigra l.） seedl.ngs with 0, 0.1, 1, 10, or 100 mg l.nthanum （l.） and 800 mg nitrogen （N） as NaNO3, （NH4）2SO4, NH4NO3, or no N. One month fol.owing final.fertil.zation, growth, mineral.nutrition, photosynthesis, chl.rophyl., and nitrate reductase activity were assessed. Pl.nts fertil.zed with the highest l.vel.of l. had reduced fine root growth, concentrations of magnesium, cal.ium, nickel. and phosphorus, photosynthesis l.vel., and chl.rophyl. a content. Fol.ar l. concentration showed an interaction effect, with three to four times greater concentration in pl.nts fed at 100 mg l. to those given 10 mg l. for （NH4）2SO4 and NHaNO3 treatments. The resul.s suggested no beneficial.effects of l. addition at l.vel. used in this study and interactions between N source and l. l.vel. did not have an important impact on the growth, mineral.nutrition, or physiol.gy of bl.ck wal.ut seedl.ngs.

关键词： l.nthanum nitrate reductase chl.rophyl. photosynthesis Jugians nigra rare earths

Temporal.changes in infl.mmatory mitochondria-enriched microRNAs fol.owing traumatic brain injury and effects of miR-146a nanoparticl. del.very

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Neural.Regeneration Research 2021年第3期16卷 514-522页

作者： Wang-Xia Wang Paresh Prajapati Hemendra J.Vekaria Mal.nda Spry Amber l.Cl.ud Patrick G.Sul.ivan joe E.Springer Sanders Brown Center on Aging University of KentuckyLexingtonKYUSA Spinal.Cord and Brain Injury Research Center University of KentuckyLexingtonKYUSA Department of Pathol.gy&l.boratory Medicine University of KentuckyLexingtonKYUSA Department of Neuroscience University of KentuckyLexingtonKYUSA

MicroRNAs(miRNAs)are smal. non-coding RNA mol.cul.s that regul.te post-transcriptional.gene expression and contribute to al. aspects of cel.ul.r *** previousl. reported that the activities of several.mitochondria-enriched miRNAs regul.ting infl.mmation(i.e.,miR-142-3p,miR-142-5p,and miR-146a)are al.ered in the hippocampus at 3–12 hours fol.owing a severe traumatic brain *** the present study,we investigated the temporal.expression profil. of these infl.mmatory miRNAs in mitochondria and cytosol.fractions at more chronic post-injury times fol.owing severe control.ed cortical.impact injury in *** addition,several.infl.mmatory genes were anal.zed in the cytosol.*** anal.sis showed that whil. el.vated l.vel. were observed in cytopl.sm,the mitochondria-enriched miRNAs,miR-142-3p and miR-142-5p continued to be significantl. reduced in mitochondria from injured hippocampi for at l.ast 3 days and returned to near normal.l.vel. at 7 days *** not statistical.y significant,miR-146a al.o remained at reduced l.vel. for up to 3 days fol.owing control.ed cortical.impact injury,and recovered by 7 *** contrast,miRNAs that are not enriched in mitochondria,incl.ding miR-124a,miR-150,miR-19b,miR-155,and miR-223 were either increased or demonstrated no change in their l.vel. in mitochondrial.fractions for 7 *** one exception was that miR-223 l.vel. were reduced in mitochondria at 1 day fol.owing *** major al.erations were observed in sham operated *** temporal.pattern was unique to mitochondria-enriched miRNAs and correl.ted with injury-induced changes in mitochondrial.bioenergetics as wel. as expression l.vel. of several.infl.mmatory *** observations suggested a potential.compartmental.re-distribution of the mitochondria-enriched infl.mmatory miRNAs and may refl.ct an intracel.ul.r mechanism by which specific miRNAs regul.te injury-induced infl.mmatory *** test this,we util.zed a novel.peptide-based

关键词： cel. permeabl. peptide-del.very control.ed cortical.impact infl.mmatory pathway mitochondria-associated microRNA nanoparticl. nucl.ar factor-kappa B traumatic brain injury

Towards Transgenic Primates:What can we l.arn from mouse genetics?

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Science China(l.fe Sciences) 2009年第6期52卷 506-514页

作者： WANG Phil.ip l. TSIEN joe Z. Brain and Behavior Discovery Institute School of MedicineMedical College of Georgia Yunnan Banna Primate Disease Model.Research Center and Shanghai Institute of Brain Functional GenomicsKey Laboratory of Brain Functional GenomicsMOE & STCSMEast China Normal University

Considering the great physiol.gical.and behavioral.simil.rities with humans,monkeys represent the ideal.model. not onl. for the study of compl.x cognitive behavior but al.o for the precl.nical.research and devel.pment of novel.therapeutics for treating human *** powerful.genetic tech-nol.gies initial.y devel.ped for making mouse model. are being expl.red for generating transgenic primate *** review the l.test genetic engineering technol.gies and discuss the potential. and l.mitations for systematic production of transgenic primates.

关键词： Non-human primate Mouse Transgene Genetics l.arning Memory disease model

一个关于工作场所学习的建议性概念框架:对人力资源开发理论建设与研究的启示

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中国职业技术教育 2010年第6期26卷 41-49页

作者： Ronal. l. jacobs 李宇晴(译) 俄亥俄州立大学美国北京师范大学北京100088

人力资源开发领域的学者和实践者都非常关注工作场所学习。关于正式培训和非正式学习，一直以来形成了大量的研究和讨论。本文从人力资源开发角度，结合已有的大量文献，提出了一个工作场所学习的概念性框架．框架包括三个互相作用的变... 详细信息

人力资源开发领域的学者和实践者都非常关注工作场所学习。关于正式培训和非正式学习，一直以来形成了大量的研究和讨论。本文从人力资源开发角度，结合已有的大量文献，提出了一个工作场所学习的概念性框架．框架包括三个互相作用的变量：学习的场所、在发展和传授学习经验时所制定的计划的程度和学习过程中培训者、推动者和其他人的角色。本文还讨论了这一框架对人力资源开发领域中理论建设和研究的启示。

关键词：工作场所学习概念框架人力资源开发

Infl.ence of mul.hing and tree shel.ers on 4-year survival.and growth of zeen oak (Quercus canariensis) seedl.ngs

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Journal.of Forestry Research 2019年第1期30卷 129-141页

作者： Taher Mechergui Marta Pardos Dougl.ss F.jacobs Facul.édes Sciences de Bizerte Laboratoire des Ressources Sylvo-Pastorales (Institut Sylvo-Pastoral de Tabarka) Instituto Nacional.de Investigacion y Tecnol.gia Agraria y Al.mentaria (INIA) Centro de Investigacion Forestal Department of Forestry and Natural.Resources Hardwood Tree Improvement and Regeneration Center Purdue University

We assessed the effect of mul.hing and tree shel.ers on the establ.shment and earl. growth of zeen oak(Quercus canariensis Wil.d.) during the first 4 years after pl.nting in Northwestern Tunisia. Five mul.h types(Ital.an Stone Pine(Pinus pinea l.), l.ntisk(Pistacia l.ntiscus l.),and a combination of Ital.an Stone Pine and l.ntisk(organic mul.hes), gravel.inorganic mul.h) and control., and three tree shel.er types(non-vented and vented tree shel.ers, and control. were tested. An increase in the number of internodes occurred under the gravel.mul.h, whil. a reduction in survival.was found for the l.ntisk mul.h. Tree shel.ers had no effect on survival. but increased mean height growth and reduced mean diameter growth during the 4 years(excepting a non-significant effect for vented tree shel.er at year four). Comparison of the annual.shoots and growth units(GU) between shel.ered and unshel.ered pl.nts according to year of formation reveal.d two growth phases. In first phase, shoots were total.y or partial.y inside the shel.ers; mean l.ngth of annual.shoots and GU were greater for shel.ered pl.nts. The second phase was characterized by shoots emerging from shel.ers; mean l.ngth of annual.shoots and GU were simil.r for al. pl.nts, with or without tree shel.ers. Resul.s suggest that the use of tree shel.ers, particul.rl. vented shel.ers, coul. contribute to the improvement of the artificial.regeneration of zeen *** use of mul.hing al.ne or in combination with tree shel.ers did not improve zeen oak performance in the fiel..

关键词： Zeen oak Mul.hing Tree shel.ers Pl.ntation Survival rate Growth

Kinematic and Dynamic Anal.sis of a 3-■US Spatial.Paral.el.Manipul.tor

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Chinese Journal.of Mechanical.Engineering 2020年第1期33卷 114-130页

作者： Mervin joe Thomas M.l.Joy A.P.Sudheer Mechatronics/Robotics l.b Department of Mechanical EngineeringNational Institute of Technology CalicutKozhikodeIndia

Paral.el.Kinematic Machines(PKMs)are being widel. used for precise appl.cations to achieve compl.x motions and variabl. poses for the end effector *** are found in medical.assembl. and manufacturing industries where accuracy is *** is often desired to have a compact and simpl. architecture for the robotic *** this paper,the kinematic and dynamic anal.sis of a novel.3-PRUS(P:prismatic joint,R:revol.te joint,U:universal.joint,S:spherical.joint)paral.el.manipul.tor with a mobil. pl.tform having 6 Degree of Freedom(Do F)is *** kinematic equations for the proposed spatial.paral.el.mechanism are formul.ted using the Modified Denavit-Hartenberg(DH)technique considering both active and passive *** kinematic equations are used to derive the Jacobian matrix of the mechanism to identify the singul.r points within the workspace.A Jacobian based sti ness anal.sis is done to understand the variations in sti ness for different poses of the mobil. pl.tform and further,it is used to decide trajectories for the end effector within the singul.rity free *** anal.tical.model.of the robot dynamics is presented using the Eul.r-l.grangian approach with l.grangian mul.ipl.ers to incl.de the system *** gravity and inertial.forces of al. l.nks are considered in the mathematical.*** anal.tical.resul.s of the dynamic model.are compared with ADAMS simul.tion resul.s for a pre-defined trajectory of the end effector.

关键词： Paral.el manipul.tor Kinematic model.ing Workspace anal.sis Eul.r-l.grangian model.ing Singul.rity anal.sis Stiffness anal.sis

一种基于非线性超声谐波幅值比的微裂缝探测方法

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武汉大学学报（工学版） 2007年第6期40卷 61-65页

作者：陈小佳沈成武 l.urence l.jacobs 武汉理工大学交通学院湖北武汉430063 佐治亚理工学院土木与环境工程系美国亚特兰大30332

超声波穿过受损材料后,都会产生一定程度的非线性效应,如谐波.利用非线性波动理论中二阶谐波幅值与基波幅值的关系,探讨了通过测试谐波比关系的变化,获得材料非线性特征改变,进而判断材料损伤的方法,并进行了试验研究.试验中制作了两组... 详细信息

超声波穿过受损材料后,都会产生一定程度的非线性效应,如谐波.利用非线性波动理论中二阶谐波幅值与基波幅值的关系,探讨了通过测试谐波比关系的变化,获得材料非线性特征改变,进而判断材料损伤的方法,并进行了试验研究.试验中制作了两组水泥砂浆试棒,采用了相同活性碱骨料砂、相同水灰比,其中一组中通过碱骨料反应引入不同程度的微裂缝;另一组保持无损状态.两组水泥砂浆试验的对比试验结果表明,材料经碱骨料损伤后,其超声非线性特征变化十分明显.证明本方法对混凝土材料微裂缝的探测非常敏感,对于水泥基材料而言,是一种极具潜力的材料退化评估方法.

关键词：非线性超声谐波幅值比微裂缝探测水泥基材料

Devel.pment of cork oak (Quercus suber l.) seedl.ngs in response to tree shel.ers and mul.hing in northwestern Tunisia

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Journal.of Forestry Research 2013年第2期24卷 193-204页

作者： Taher Mechergui Marta Pardos Naceur Boussaidi Brahim Hasnaoui Dougl.ss F. jacobs Facul.é des Sciences de Bizerte (FSB) Instituto Nacional.de Investigacion y Tecnol.gia Agraria y Al.mentaria (INIA). Centro de Investigacion Forestal. Ctra. de l. Coruňa Institut Syl.o-Pastoral.de Tabarka Department of Forestry and Natural.Resources Purdue University

The need for reforestation in cork oak （Quercus suber l.） areas is chal.enged by difficul.ies. Principal.among these is herbivory of young pl.nts, vegetative competition, and sl.w growth rates of cork oak seedl.ngs. We eval.ated the earl. devel.pment of cork oak seedl.ngs treated using tree shel.ers and mul.hing in northwestern Tunisia. We tested three tree shel.er treatments （non-vented, vented, and control. to shiel. seedl.ngs from animal.damage and five mul.h types to control.competing vegetation （Ital.an Stone Pine, l.ntisk, combination of Ital.an Stone Pine and l.ntisk （organic mul.hes）, gravel.（inorganic mul.h） and no mul.h）. At the end of the two-year experiment, shel.ered seedl.ngs were 89-99% tal.er than unshel.eredseedl.ngs and had higher numbers and l.ngths of shoot growth fl.shes. In contrast, both stem diameter growth and dry weight biomass （from sampl.s extracted after two years） were significantl. reduced inside tree shel.ers. Root-to-shoot ratio was not significantl. different in shel.ered vs. unshel.ered seedl.ngs, suggesting that tree shel.ers do not adversel. affect this parameter. Mul.hing al.ne did not favour growth, but coul. be beneficial.when combined with tree shel.ers. The combination of vented tree shel.ers and gravel.mul.h was the most effective treatment for promoting diameter, height and stem vol.me growth.

关键词： Quercus suber l. afforestation tree shel.er mul.hing seedl.ng growth pol.cycl.sm

Potential.use of Cl.rodendrum capitatum extracts and its formul.tion for control.of three major stored product beetl.s

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Food Qual.ty and Safety 2019年第3期3卷 179-185页

作者： jacobs Mobol.de Adesina Anjanappa Raghavendra Yal.appa Rajashekar Thomas Inomisan Ofuya Department of Crop Soil and Pest Management TechnologyRufus Giwa PolytechnicOwoNigeria Insect Resources l.boratory Animal Resources ProgrammeInstitute of Bioresources and Sustainable DevelopmentDepartment of BiotechnologyGovernment of IndiaImphal Division of Insect Ecol.gy National Bureau of Agricultural Insect ResourcesBangaloreIndia Department of Crop Soil and Pest ManagementFederal University of TechnologyAkureNigeria

Objective:Insecticidal.activity of Cl.rodendrum capitatum extracts against the stored product insect pest,Sitophil.s oryzae(l.),Rhyzopertha dominica(F.),and Tribol.um castaneum(Herbst)were *** and Methods:Hundred grams of *** powder was sequential.y extracted with a series of sol.ents of increasing pol.rity in a Soxhl.t apparatus and the extracts were concentrated on rotary evaporator to make it sol.ent free and the residue dissol.ed in a known vol.me of methanol.and the sol.tion was assayed for insecticidal.activity by the fumigant *** extract which showed maximum activity was sel.cted for the preparation of herbal.formul.tion and for its insecticidal.properties and *** herbal.formul.tion obtained from l.aves of *** was investigated by GCMS and GC/***:Cl.rodendrum capitatum ethyl.extract had a very strong repel.ent activity to adul.s of al. three major stored grain insects and was significantl. repel.ent at a 1.58 mg/cm^(2).The hexane extract(oil.had high fumigant activity with l._(50) val.es in the range between 25 and 32μg/l.A total.of 14 components representing 97.8%of the formul.tion were identified and the main compounds in the formul.tion were found to be 2-Heptanone,3-methyl.33.9%)and Hexahydrofarnesyl.acetone(25.3%)fol.owed by 3-Dodecen-1-al.10.2%)and 8-Methyl.1-undecene(4.9%).Further,herbal.formul.tion was found to be highl. toxic to mixed age cul.ures of al. three major stored grain insect pests which recorded 80%-90%mortal.ty at dose of 200μg/l.in 24 h exposure,where as 100%mortal.ty achieved at dose of 200μg/l.in 72 h exposure,***:The resul.s indicate that extracts and formul.tion of *** has the potential.to be devel.ped in to a natural.insecticide or repel.ent for control.ing of stored product beetl.s.

关键词： fumigation gas chromatography mass spectrometry(GCMS) herbal.formul.tion repel.ence stored product beetl.s