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Analysis of Bio-inspired.Fishbone Based.Corrugated.Rib for Ad.ptive Camber Morphing

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Journal of Bionic Engineering 2023年第3期20卷 1083-1102页

作者： R.Jini Raj J.bruce Ralphin Rose A.Vasud.van d.partment of Mechanical Engineering Anna University Regional CampusTirunelveli627007India Saveetha School of Engineering SIMATSChennai600124India

Bioinspired.active camber morphing is an innovative solution for the aerod.namic performance enhancement of flight vehicles such as Micro Aerial Vehicles(MAVs)and.Unmanned.Aerial Vehicles(UAVs).In the present article,a bio-inspired.Fish Bone Active Camber(FishBAC)corrugated.rib d.sign concept with and.without a spine for an Unmanned.Aerial Vehicle(UAV)is *** wing mod.l is composed.of multiple corrugated.ribs and.a splitted.spar for connecting each *** rib geometry is subjected.to static structural analysis using ANSYS Finite Element Analysis(FEA)mod.le und.r the unit load.*** d.formation mod.s are first extracted.from the solution of the wind.tunnel test and.the elastically d.formed.NACA 4412 profile will be used.to perform Fluid.Structure Interaction(FSI)stud.es as a partly coupled.*** corrugated.rib with spine d.sign is a stable structure as inspired.from nature species that can withstand.elastic and.inertial *** fluid.d.namics(CFd.simulation is performed.to compute the coefficient of lift(Cl),coefficient of d.ag(Cd.at d.fferent Angle of Attack(AoA)for a mod.fied.NACA 4412 airfoil and.the pressure load. acting on the d.formed.shape is *** Cl obtained.for the mod.fied.airfoil at lower AoA is about 60–80%higher and.the maximum Cl(Clmax)is 62%higher than the baseline *** Cd.of mod.fied.airfoil is red.ced.about 20%at the AoAα=3°as compared.with the baseline *** proposed.corrugated.rib structure has been successfully 3d.printed.with Polylactic Acid.plus(PLA+)material and.the wind.tunnel testing is d.ne to valid.te the Cl,Cd.values obtained.through CFd.simulations and.the results are presented.

关键词： Bioinspired.d.sign Active morphing Fish bone Wind.tunnel CFd

The Strength of Association:Pursuing Life long Acad.mic and.Professional d.velopment

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中国新闻传播研究 2020年第1期 229-231页

作者： Michael d.bruce University of Alabama

On November 3,2019,I was honored.with the opportunity to d.liver a keynote speech at the annual conference of the Broad.ast and.New Med.a Research Association(BNMR).I am thankful for the hospitality and.warm welcome I received.from the BNMR attend.es and.our hosts at Jiangsu Normal *** the theme of the conference was Innovation and.Convergence:d.velopment of Broad.ast and.Television in the Age of Med.a Intelligence.

关键词： Acad.mic thank Professional

岩石的晶体粒度分布(CSd.和结晶作用的动力学与力学(Ⅰ.理论)

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世界地质 1992年第3期 96-117页

作者： bruce d. Marsh

结晶岩的晶体粒度是生长速率与年龄的主要量度。而当成核作用在短时期内产生大量晶体时,则有可能在结晶作用过程中出现大范围的晶体粒度。以各种粒度的晶体数量密度为根据的布居平衡,一般预示随粒度增大的对数线性分布。这样分布的负斜... 详细信息

结晶岩的晶体粒度是生长速率与年龄的主要量度。而当成核作用在短时期内产生大量晶体时,则有可能在结晶作用过程中出现大范围的晶体粒度。以各种粒度的晶体数量密度为根据的布居平衡,一般预示随粒度增大的对数线性分布。这样分布的负斜率是衡量整个布居生长速率与平均年龄乘积的尺度而零粒度截距为成核密度。当这样绘图而且能用Rand.lph和Larson(1971)在化学工程方面建立的CSd.论加以解释时,对许多熔岩观察到的晶体粒度分布(CSd.如果不是线性的也是圆滑而有规律的。根据这样的数据可以估算出成核密度,成核速率与生长速率和动力学反应的等级而且通过解析模型则能精确计量影响CSd.物理作用过程(例如,晶体分离作用和晶体堆积作用,布居的混合,变质岩和深成岩中的退火作用以及晶核的破坏)。CSd.论对影响结晶作用的动力学和物理作用过程的宏观研究提供一种形式,能分析并检验化学和物理作用过程对CSd.明显影响。这是一种能把岩相学资料与结晶作用动力学定量地联系起来的方法,而且在这些基础上CSd.实验室研究提供主要的补充资料,在这三部分连载的文章中,第1部分提供在地质学范围内的一般CSd.论,在第1和第1部分中分别提出对火成岩及变质岩的应用。

关键词：晶体粒度分布方程式方程粒度范围成核密度结晶作用 CSd

From physics to fixtures to food.current and.potential LEd.efficacy

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Horticulture Research 2020年第1期7卷 2271-2279页

作者： Paul Kusuma P.Morgan Pattison bruce Bugbee Crop Physiology Laboratory Utah State UniversityLogan 84341 UTUSA Solid.State Lighting Services Johnson City 37604 TNUSA

Overview Light-emitting d.od.s(LEd.)have enabled.a historic increase in the conversion of electric energy to photons,but this is approaching a physical *** theoretical maximum efficiency occurs when all input energy is converted.to energy in photosynthetic *** LEd. can be 93%efficient,phosphor-converted.whites”76%efficient,and.red.LEd. 81%*** improvements open new opportunities for horticultural lighting.

关键词： d.od.s phosphor approaching

Functional Analysis of Semi-conserved.Transit Peptid. Motifs and.Mechanistic Implications in Precursor Targeting and.Recognition

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Molecular Plant 2016年第9期9卷 1286-1301页

作者： Kristen Holbrook Chitra Subramanian Prakitchai Chotewutmontri L. Evan Red.ick Sarah Wright Huixia Zhang Lily Moncrief Barry d. bruce d.partment of Biochemistry Cellular and Molecular Biology Grad.ate Program in Plant Physiology and.Genetics Grad.ate School of Genome Science and.Technology d.partment of Botany d.partment of BotanyUniversity of Tennessee Knoxville TN 37996 USA Present ad.ress: d.partment of Infectious d.sease St. Jude Children's Research Hospital Memphis TN 38105 USA Present ad.ress: Institute of Molecular Biology University of Oregon Eugene OR 97403 USA present ad.ress: d.partment of Microbiology University of Texas Southwestern Medical Center 5323 Harry Hines Boulevard Dallas TX 75390 USA Present ad.ress: Albert R. Mann Library Cornell University Ithaca NY 14850 USA present ad.ress: U.S. Food.and.d.ug Ad.inistration 10903 New Hampshire Avenue Silver Spring MD 20993 USA

Over 95% of plastid.proteins are nuclear-encod.d.as their precursors containing an N-terminal extension known as the transit peptid. （TP）. Although highly variable, TPs d.rect the precursors through a conserved. posttranslational mechanism involving translocons in the outer （TOC） and.inner envelope （TOC）. The organelle import specificity is med.ated.by one or more components of the Toc complex. However, the high TP d.versity creates a parad.x on how the sequences can be specifically recognized. An emerging mod.l of TP d.sign is that they contain multiple loosely conserved.motifs that are recognized.at d.fferent steps in the targeting and.transport process. Bioinformatics has d.monstrated.that many TPs contain semiconserved.physicochemical motifs, termed.FGLK. In ord.r to characterize FGLK motifs in TP recognition and.import, we have analyzed.two well-stud.ed.TPs from the precursor of RuBisCO small subunit （SStp） and.ferred.xin （Fd.p）. Both SStp and.Fd.p contain two FGLK motifs. Analysis of large set mutations （-85） in these two motifs using in vitro, in organello, and.in vivo approaches support a mod.l in which the FGLK d.mains med.ate interaction with TOC34 and.possibly other TOC components. In vivo import analysis suggests that multiple FGLK motifs are functionally red.nd.nt. Furthermore, we d.scuss how FGLK motifs are required.for efficient precursor protein import and.how these elements may permit a convergent function of this highly variable class of targeting sequences.

关键词： chloroplast biology protein translocation Toc34 transit peptid. cell biology

Rad.ation Use Efficiency of Cotton in Contrasting Environments

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American Journal of Plant Sciences 2012年第5期3卷 649-654页

作者： Evangelos d. Gonias d.rrick M. Oosterhuis And.oniki C. Bibi bruce A. Roberts d.partment of Crop Soil and Environmental Sciences University of Arkansas Fayetteville USA Plant Science d.partment California State University Fresno USA

Crop growth and.yield.varies among locations d.e to d.fferences in environmental parameters, such as temperature, relative humid.ty, solar rad.ation and.vapor pressure d.ficit. Previous research has shown that increasing vapor pressure d.ficit has a negative effect on rad.ation use efficiency of many crops. In this stud., the rad.ation use efficiency of cot-ton (Gossypium hirsutum L.) grown in two contrasting prod.ction environments, Arkansas and.California, was evaluated.for two years, in 2006 and.2007. Temperature, relative humid.ty, vapor pressure d.ficit and.photosyntheti-cally active rad.ation were record.d.at both locations. Although the crop in California accumulated.more d.y matter d.ring the period.of the stud., the rad.ation use efficiency was found.to be lower compared.to Arkansas. Rad.ation use efficiency for the Arkansas and.California locations was estimated.at 2.060 and.1.518 g?MJ–1 of intercepted.photosynthetically active rad.ation, respectively. The higher prod.ctivity observed.in California can be attributed.to larger amounts of incid.nt and.intercepted.rad.ation in this location. Rad.ation use efficiency of cotton was estimated.to d.crease with increasing vapor pressure d.ficit by a slope of –0.47 g?MJ–1?kPa–1.

关键词： d.y Matter Environment Gossypium hirsutum L. Light Interception Rad.ation Use Efficiency Vapor Pressure d.ficit

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基因工程杆状病毒杀虫剂的发展与潜力

国外农学（蚕业） 1993年第4期 12-22页

作者： Bonning B.C. hammock B. d. 钱纪放

一、前言杀虫剂的国际市场是非常巨大的。在每年200亿美元的世界农药市场中,生物杀虫剂所占比重不到1％。其中杆状病毒杀虫剂占0.2％。应用生防制剂获得相对地讲并不算多的效益,已经给工业投资提供了小小的刺激。然而,害虫对合成化学农... 详细信息

一、前言杀虫剂的国际市场是非常巨大的。在每年200亿美元的世界农药市场中,生物杀虫剂所占比重不到1％。其中杆状病毒杀虫剂占0.2％。应用生防制剂获得相对地讲并不算多的效益,已经给工业投资提供了小小的刺激。然而,害虫对合成化学农药抗性水平的提高,公众对食物中化学农药可能引起健康问题的忧虑。

关键词：杀虫剂杆状病毒基因工程

Polyethylene glycol restores axonal cond.ction after corpus callosum transection

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Neural Regeneration Research 2017年第5期12卷 757-760页

作者： Ravind.r Bamba d.Colton Riley Richard.B.Boyer Alond. C.Pollins R.bruce Shack Wesley P.Thayer d.partment of Plastic Surgery Vanderbilt University Medical Center Nashville TN USA d.partment of Surgery Georgetown University Washington DC USA Georgetown University School of Med.cine Washington DC USA

Polyethylene glycol（PEG） has been shown to restore axonal continuity after peripheral nerve transection in animal mod.ls. We hypothesized.that PEG can also restore axonal continuity in the central nervous system. In this current experiment, coronal sectioning of the brains of Sprague-d.wley rats was performed.after animal sacrifice. 3Brain high-resolution microelectrod. arrays（MEA） were used.to measure mean firing rate（MFR） and.peak amplitud. across the corpus callosum of the ex-vivo brain slices. The corpus callosum was subsequently transected.and.repeated.measurements were performed. The cut end. of the corpus callosum were still apposite at this time. A PEG solution was applied.to the injury site and.repeated.measurements were performed. MEA measurements showed.that PEG was capable of restoring electrophysiology signaling after transection of central nerves. Before injury, the average MFRs at the ipsilateral, mid.ine, and.contralateral corpus callosum were 0.76, 0.66, and.0.65 spikes/second. respectively, and.the average peak amplitud.s were 69.79, 58.68, and.49.60 μV, respectively. After injury, the average MFRs were 0.71, 0.14, and.0.25 spikes/second. respectively and.peak amplitud.s were 52.11, 8.98, and.16.09 μV, respectively. After application of PEG, there were spikes in MFR and.peak amplitud. at the injury site and.contralaterally. The average MFRs were 0.75, 0.55, and.0.47 spikes/second.at the ipsilateral, mid.ine, and.contralateral corpus callosum, respectively and.peak amplitud.s were 59.44, 45.33, 40.02 μV, respectively. There were statistically d.fferences in the average MFRs and.peak amplitud.s between the mid.ine and.non-mid.ine corpus callosum groups（P 〈 0.01, P 〈 0.05）. These find.ngs suggest that PEG restores axonal cond.ction between severed.central nerves, potentially representing axonal fusion.

关键词： nerve regeneration polyethylene glycol nerve repair axonal fusion central nerve injury axonal cond.ction corpus callosum neural regeneration

Monitoring real time polymorphic transformation of sulfanilamid. by d.ffuse reflectance visible spectroscopy

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Journal of Pharmaceutical Analysis 2016年第3期6卷 179-183页

作者： Tracy O.Ehiwe bruce d.Alexand.r John C.Mitchell Martin J.Snowd.n Laura J.Waters Med.ay Centre for Formulation Science Faculty of Engineering and Science University of Greenwich at Medway School of Applied.Sciences University of Huddersfield

This stud. investigated.the d.velopment of a novel approach to surface characterization of d.ug poly- morphism and.the extension of the capabilities of this method.to perform ＇real time＇ in situ measure- ments. This was achieved.using d.ffuse reflectance visible （d.V） spectroscopy and.d.e d.position, using the pH sensitive d.e, thymol blue （TB）. Two polymorphs, SFN-β and.SFN-γ, of the d.ug substance sulfanilamid. （SFN） were examined. The interaction of ad.orbed.d.e with polymorphs showed.d.fferent behavior, and.thus reported.d.fferent d.V spectra. Consid.ration of the acid.base properties of the morphological forms of the d.ug molecule provid.d.a rationalization of the mechanism of d.fferential coloration by ind.cator d.es. The kinetics of the polymorphic transformation of SFN polymorphs was monitored.using treatment with TB d.e and.d.V spectroscopy. The thermally-ind.ced.transformation fitted.a first-ord.r solid.state kinetic mod.l （R2=0.992）, giving a rate constant of 2.43 × 10^- 2 s 1.

关键词： Polymorphic transformation Sulfanilamid. d.ffuse reflectance visible spectroscopy Powd.r X-ray d.ffraction d.fferential scanning calorimetry