9 research outputs found

    Evaluation of close range photogrammetric support for Pavescan

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    Pavescan is a low cost mobile system for road modelling survey. Because of the absence of navigation sensors it has several practical drawbacks compared to most of the other mobile mapping systems, but those sensors are very expensive and do not fulfil most of the accuracy requirements. Pavescan will be more attractive if some of the practical drawbacks are reduced. Pavescan measures road profiles across the road by laser scanning at a series of positions. The separate scans are linked via control points, which have to be measured in an additional survey. The accuracy in height of the scans is most important (e.g. for volume calculations) and has to be in the range of millimetres. It is evaluated if integrating close range photogrammetry can achieve millimeter accuracy of the scan and reduce the number of control points. A test survey was conducted with a downward looking camera, which was mounted close to the scanner at a height of around 3.6 metres above the road's surface. The position and orientation of the camera at each exposure is retrieved by bundle adjustment. The accuracy of the bundle adjustment depended strongly on the configuration of the control points. Due to the narrow shape of a strip of images, this configuration will always be weak. For a sequence of 28 images ( 43 metres), around five control points are needed to achieve sub-centimetre accuracy of the object points. If more than 36 images or fewer than four control points were used, the bundle adjustment diverged (i.e. no solution could be obtained). A reduction of control points is therefore not possible. The practical feasibility for integrating close range photogrammetry into Pavescan is low, since too many control points are needed that should spatially be well distributed and measured with tachymetry (or with similar accuracy). Therefore it is not recommended to integrate photogrammetry in Pavescan.Department of Optical and Laser Remote SensingAerospace Engineerin

    Design of a Human Reliability Assessment model for structural engineering

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    It is generally accepted that humans are the “weakest link” in structural design and construction processes. Despite this, few models are available to quantify human error within engineering processes. This paper demonstrates the use of a quantitative Human Reliability Assessment model within structural engineering. The model consists of four steps. In the first step the process and its boundary conditions are identified. In the second step, the effect of human error on a single task is defined. In the third step, these effects are combined into an overall effect on the engineered structure. Finally, the structural failure probability is estimated by combining the strength and loading conditions by means of a Monte Carlo simulation. The use of the model is demonstrated using a case study based on the design process of a frame structure. This case study shows that the model has the potential to quantify the effect of human errors within carefully defined boundary conditions.OTB ResearchOTB Research Institute for the Built Environmen

    Sommaire - 12(3) Septembre 2024

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    Sommaire Production et Santé Animales Evaluation des pratiques et moyens de prise en charge des chirurgies digestives dans les cabinets vétérinaires en Afrique de l’Ouest Sahidi ADAMOU, Rock Allister LAPO, Noureddine BEN CHEHIDA 141-148 Caractéristiques socio-démographiques et techniques des systèmes d’élevage de ruminants et analyse des contraintes de production en Côte d’Ivoire Adam Camille KOUAME, Gouagoua Séverin KOUADJA, Kouakou Eugène KOUADIO, Pierre TOURE, Kalo Laciné BAMBA, Kouabena KREMAN 149-157 Typologie des élevages de dindons locaux (Meleagris gallopavo) dans les zones agro-écologiques Ouest Atacora et Vivrière du Sud Borgou au Bénin Cham ALABI, Yaya IDRISSOU, S.A. ASSANI, S.H.S. WOROGO, M. AZALOU, I.T. ALKOIRET 158-163 Prévalence sérologique de la Trypanosomose Animale Africaine (TAA) chez les bovins élevés dans la vallée de la Semuliki, RD Congo Faustin LITALEMA LOKINDA, Sébastien KAKULE, Jolie OSANDO, Rigobert LITINDI 164-169 Production Végétale et Environnement Le piège à tissus comme méthode physique innovante de surveillance et de capture au champ de Noorda blitealis, principal ravageur du Moringa Mamane Sani HALILOU, Ali DOUMMA 170-173 Système de production et importance socio-économiques du taro (Colocasia esculenta (L.) Schott) et du macabo (Xanthosoma sagittifolium Schott) au Bénin Sylvie TAMADAHO, Gbèdomèdji Hurgues Aristide HOUENON, Rose Fernande FAGBEDJI, Aristide Cossi ADOMOU, Hounnankpon YEDOMONHAN 174-182 Nutrition et Technologie Alimentaire Consommation, interdits, risques sanitaires, et enjeux de l’élevage des silures en Côte d’Ivoire Kouamé Benjamin ATTA, Ahou Rachel KOUMI, Bénié Rose Danielle ABOUA, Kadjo Henri Joël NIAMIEN, Boua Célestin ATSÉ, Essétchi Paul KOUAMÉLAN 183-189 Ressources Naturelles et Foresterie Ethno-zoologie du Dendrocygne veuf (Dendrocygna viduata) dans la vallée du fleuve Niger Hassane SOUMAILA, Issiaka YOUSSOUFA, Soumana IDRISSA, Abdourhimou AMADOU ISSOUFOU, Ali MAHAMANE 190-195 Rendement des fours traditionnels de production de charbon à Acacia auriculiformis et A. mangium sur le plateau des Batéké, RD Congo Jean SEMEKI NGABINZEKE, Etienne YUSUFU KACHAKA, Rodrigue DAASSI, Clarin BASUSU MASIMO, Micheline KANI KANI, Jean LEJOLY 196-20

    Croissance et teneurs en nutriments des juvéniles de Clarias gariepinus élevés en milieu contaminé aux insecticides Emamectine benzoate et Acétamipride

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    This study aims to evaluate, under controlled conditions, the effects on growth and biochemical composition of an exposure of Clarias gariepinus to the insecticides Emamectin benzoate and Acetamiprid. Juveniles of C. gariepinus (2.38 ± 0.1 g) were subjected to three sub-lethal concentrations of a commercial product containing the two insecticides (0; 0.25 and 0.50 µl/l) for 28 days. Data collected and assays in the laboratory performed on whole fish, were used to determine the survival rate, growth performance, feed efficiency and nutritional parameters. Results of the study showed that while survival rates were similar for all treatments, the growth of exposed fishes was relatively lower than that of the control. This low growth in contaminated fish is related to the decrease in food intake and feed efficiency. This is due to preferential use of body proteins and some carbohydrates to produce energy in order to cope with chemical stress and energy cost of abnormal behaviors (hyperactivity, rapid swimming, loss of balance, etc.) induced by the insecticides. Keywords: Exposure, insecticide, Clarias gariepinus, growth, biochemical compositionCette étude vise à évaluer en conditions contrôlées, les effets sur la croissance et la composition biochimique, d’une exposition de Clarias gariepinus aux insecticides Emamectine benzoate et Acétamipride. Ainsi, des juvéniles de C. gariepinus (2,38 ± 0,1 g) ont été soumis à trois concentrations sub-létales d\u27un produit commercial contenant les deux insecticides (0; 0,25 et 0,50 µl/l) pendant 28 jours. Les données collectées et les dosages au laboratoire réalisés sur des poissons entiers, ont permis de déterminer les taux de survie, les performances de croissance, l’efficacité alimentaire et les paramètres nutritionnels. Les résultats de l’étude ont montré que si les taux de survie sont semblables pour tous les traitements, la croissance des individus exposés aux insecticides était relativement inférieure à celle des individus témoins. Cette faible croissance chez les individus contaminés est liée à la baisse de la prise alimentaire et de l’efficacité alimentaire. Ceci est lié à l’utilisation préférentielle des protéines corporelles et d’une partie des glucides pour produire de l’énergie afin de faire face au stress chimique et au coût énergétique des comportements inhabituels (hyperactivité, nage rapide, perte d’équilibre, etc) induits par l’insecticide. Mots Clés: Exposition, insecticide, Clarias gariepinus, croissance, composition biochimiqu

    Systematic mapping of free energy landscapes of a growing filamin domain during biosynthesis

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    Cotranslational folding (CTF) is a fundamental molecular process that ensures efficient protein biosynthesis and minimizes the formation of misfolded states. However, the complexity of this process makes it extremely challenging to obtain structural characterizations of CTF pathways. Here, we correlate observations of translationally arrested nascent chains with those of a systematic C-terminal truncation strategy. We create a detailed description of chain length-dependent free energy landscapes associated with folding of the FLN5 filamin domain, in isolation and on the ribosome, and thus, quantify a substantial destabilization of the native structure on the ribosome. We identify and characterize two folding intermediates formed in isolation, including a partially folded intermediate associated with the isomerization of a conserved cis proline residue. The slow folding associated with this process raises the prospect that neighboring unfolded domains might accumulate and misfold during biosynthesis. We develop a simple model to quantify the risk of misfolding in this situation and show that catalysis of folding by peptidyl-prolyl isomerases is sufficient to eliminate this hazard. [Abstract copyright: Copyright © 2018 the Author(s). Published by PNAS.

    A cross-layer approach in sensing and resource allocation for multimedia transmission over cognitive UWB Networks

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    We propose an MAC centric cross-layer approach to address the problem of multimedia transmission over cognitive Ultra Wideband (C-UWB) networks. Several fundamental design issues, which are related to application (APP), medium access control (MAC), and physical (PHY) layer, are discussed. Although substantial research has been carried out in the PHY layer perspective of cognitive radio system, this paper attempts to extend the existing research paradigm to MAC and APP layers, which can be considered as premature at this time. This paper proposed a cross-layer design that is aware of (a) UWB wireless channel conditions, (b) time slot allocations at the MAC layer, and (c) MPEG-4 video at the APP layer. Two cooperative sensing mechanisms, namely, AND and OR, are analyzed in terms of probability of detection (Pd), probability of false alarm (P f), and the required sensing period. Then, the impact of sensing scheduling to the MPEG-4 video transmission over wireless cognitive UWB networks is observed. In addition, we also proposed the packet reception rate- (PRR-) based resource allocation scheme that is aware of the channel condition, target PRR, and queue status

    SCON—a Short Conditional intrON for conditional knockout with one-step zygote injection

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    The generation of conditional alleles using CRISPR technology is still challenging. Here, we introduce a Short Conditional intrON (SCON, 189 bp) that enables the rapid generation of conditional alleles via one-step zygote injection. In this study, a total of 13 SCON mouse lines were successfully generated by 2 different laboratories. SCON has conditional intronic functions in various vertebrate species, and its target insertion is as simple as CRISPR/Cas9-mediated gene tagging. © 2022, The Author(s).11Nsciescopuskc

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    .-AGE TWO DAILY PAI.O ALTO TIMES,U F.DN'F.SDAY. DEC, lg, 191.. S)ailv tXimes Editorial page II. W. 8IMKINS- -W. U. KKLLY A 1 ->i:i:: ' i ii:'. liar to us all. drawn here wltb nn a!-'p*rhaps elemental, which they them- Two errors crept into the Forum I most terrible reality. Iter conflict solve* may not understand, article or y-ierdny. In correcting [Is going on every day In thousands: Many readers will quarrel with the line "Banford University'' the.of American homes. Soon she wlltjthe conclusion. They will express makeup pulled out Doctor Gardner's;mast (his young man or that young|dlaappolntment. Tbey will argue sis-nature and substituted the cor-iman. rnrrylng with Mm possibilitiesjHere Mrs. Munger msy And a rsus* rectlon line m Ibe wrong place. Also!of en-ape. or romance, of a freer for satisfaction. As \Y. f). Howell* the line speaking of tbe number of:l|fo. 'hns often pointed out. it Is.a good bed. assigned lo one nurse, tbe orlg-: .So often, as Is ibe case wltb Kits- j thing for a story writer, now and Inal article raid "half n doxen or north, the freer life becomes a sec- then, to go against tho wishes of no." Doctor Gardner wrote "hnlf StiniJ slavery. In some wnys worse: bis reader*. It make* the reader rlnien," but the printed made It "one,than the first. What ..appena In think. Their very crlttrlams tend to •doxen." If the arilcle gets any-fitr-'the conflict between KHinheth nudjnroiis" farther Interest. 8omo of ther the next turn will probably' John Hunter makes one or those In-!Hie most successful books are those Tiave It "one hundred." jtlmate retords of marriage that r.re: where the public fntore-f.t has been > [giving Americiin Action :i new vl-j at.multiled by this kind of criticism. Till: WIND I IK Pom: THK I.AWX.ullty. To say that they arc repre- JThen, too, there will be readers who wnied honestly and sincerely by ihe, will question tho economics In the author Is not. however, to say that story. Is It true that a wife, by be- they are treated wltb perract Impar- jeomlng economically Independent, Is tiallty. Obviously Mrs. Munger fn-jenabled to meet her husband on vors her heroine. The character of; fairer terms? Perhaps the replies the girl she lovingly unfolds. Thei to this question would be largely ln- she hn* less sympathy with, jfltieneed by bias of sex. And yet ■ of the P. L. SEAMANS r&E LEADING JEWELEfi \jorgeal •***. Moss QamvprSto itoc. V.vrr Brought to Palo Alio. Only aTsaglwrrr Is Palo Mao. What We Say It Is It la. .11 Good* Kna-ravaal Pr*** RKOISmCBrTD DPTICIA* <A • by John D tlnrrj* of Mn Munger a book.) There aro some ..lories that nt -onr* reveal the storytelling faculty. You i-nn't rend n dozen wen fences without seeing at work the hand of though it is t>laln that she gives him J there Is no doubt that artist. Begin nny where nnd rend. In every Hue the story I* ■live ir Ihe writer Is shaking there Is tbe sound of a btininn voire. If n ch-iructer Is nt work there is tb<- sense of real life. A story of this kind la "The Wind Before, the Dawn." As nowadays It Is vtiry long ertaln Itinternnl pity. Perhaps she loves him even plorcs his weakness, riint.rnIIlie seir-t-sserlloti. tempt for the feminine point ot view bis rigid adherence to grossly unfair. yet gem-rally nrrcplcd. Ideals of life. torle* go! |f $-„ Munger had been lni[>*rt!at It covers Li,,, would have paid .John Hunter ;ty. Perhaps most doubtful evils In marriage may wlill*. she de- be traced to the economic dlssdran-! including his tage of wives. It Is to the credit ofj ron- Mrs. Munger ns an artist thai shej bis has not pressed her point home too Insistent)}-. With great adroitness «tii' has woven It Into the body of her narrative. Not once doea she give a suggestion of writing for the more than five hundred mm fifty} ,m,<-h nion- attention. Pnrhaps she sake of propaganda She Imtlnc- pages. It comes from one of lhe!WO,ild have made clear Ibe growth jtlvely feelB lhat propaganda Is su- besl publishers. Doubledny, Page &j|„ his eharncter that would give the I iMirdtnole lo human life. It 1* hn- Co. They have made It Into n beau-jreader some Meson to hope for aimanily that la always her mahn In- tlfiil book, printed In largo clear j hnppy solution of this matrlinonlalit-eresl. type, simply nml tastefully bound injiangle. Now we nre left nt n place! Huruly It Is a good Sinn that s slark green, with a design stamped .where, by tbe oldfaahloned standards jbook of this kind, serious from be- typlcrtl low-lylngjof fiction, wc limy assume (lint the**jglnnliig to «-rtct. Its only relief being f Its humanity. -jCan appeul to the large public. Al* among the •on tht- cover middle west farmhouse. In green I two very real human beings are go-fthe wide variety and gold, doubtless by the skilled mx IO be happy. But why. aflei hnnd of Thomas I'ognrty. who hu][owing reality so long, should we ready It is established «dono the elaborate illustrations.: Ilghtlr allow our minds to tiejbpsl sellers. It has passed lbi«„, most or tbnra in colors, an t>puai ofjdropped lute unreality? As a mnt-lmsiry editions n looks an if it might the mlddlewcst. full of diameter, ter of fact, we leave this couple at;lake Its piece among the more 1m- "The very np|-*-aranr-* or the Ixiok in. u,,. real beginning of their ndv*n-j i*orlan> novels, dealing sincerely vlten consideration Surely tbe pub-1 luring together. They think tlinijwltli American nr... published .luring Usher* must have hud great cotifl-lhey can't live without e*ch other ■ ihe past few ye»rs. dence And v.-t ihe name «f the nu- But inn they live with each other. • ~ thor Is tint n Knurl a led with other j .Mrs Munger novel-. D«,ll 11 This write. X&anhe FLOOR FINISH Matanlaad Caaa.s4 ll mad* to attend hard uaas-n, corwtant walking. a*-iitl,:ur. tit* trsn-plntt of children Kyaai-e fill stand all thla and more. Ifsnn- Is ■SS.■as-M'. hswlp-e. -:pfr-rf. T-*af D-at-T back U II 1 Uu all nt claUu. A Christmas Present That will keep the feet warm and comfortable these cold days is a desirable present. A pair of Slippers, Pumps or Boots makes a present that will be appreciated. FARRELL the SHOE MAN l 235 University Ave. Palo Alto 4* I -nattn I <l;t,U Palo Atto Paint Co.. Agents »o*>ooeeee-ee»ee*eeeee*ee»eeoee-»e-»e*eooe-eoeeeoooe*ooee*- PALO ALTO LAUNDRY CO A I.AI NDIIT THAT DOM HU.H-< LASS WORK AT U)W PKlOsM Warm called for mmd matt I promptly. MM Mat*. r»r sneceeda lu making •her naniitl.e absorbingly In tor"* t- Ing nt the start.^...rily because she llf. hns an extraordinary event to do- Im scribe, a plague of Krasshoppers. u turning like n siortn She evidently un known It at first hand She miik-si ml It lainnswli real We see her rhsr-lrlr Brier*, toruwiifed by the plague, in IA I' their .innil ami Intensely ituman re*'whs actions They belong essential); (be middle wosi Their words t th- ISng Of the oi! Ile-r. Is a St gives u significant SIMTAMST (IPKV Pdltt'M. Illustration: of the stem moral code iinr naval spoke tiefore the Bo* ui.-ilntnlneil l» Atnerbnn wiiinoii who clnlhU. open forum Suridny night on rhr)ajiUnity and riTlitr.ai.on." lie THOMAS,& BRADLEY 1048 Webster St. Phone 404Y Palo AHo, Cal. Painting and Interior Decorating Sign and Pictorial Work. Paperhanging. Tinting, Frescoing nted in her t. wounded mothm n Kti-ahw-th. dlsspim sbnnd. tyriuiui/i-il *>v her senslbllltle*. rindi in the sympnth' (lint she •eii Quite naturally, under umsiaitees, the two fall in b Trench writer would Intigh ■t .-•id.-i 1-efbniMi teller that. Innlead nl tryiiig to con trot a sit tt at Ion, Itt-romes ronlrolliHl pi.e adds on no nourishes. There i> not n hint of sham detail, nr of effo liupr s-nnti- n false tie It Ih ill iionderf ii t v rj| Its own, tb* ne. elthei a (nine Ugll' it and "n.-h that rarrles - kind 'tun goo. ■•f ruth, ilw ;itt:irke<| the t'hrlstlnn r*'l!gion ns ui snenty <if progi****, nnd ascribed to It nearlv all things bad Tbe Times iiIiiih io be a liberal news- >.*at.er. but ii cannot i-e,- the utility '.r Justice of landing its (..liiimis to he sprt-adlng of such in-roiu.d*d milowa He would |.r.-bablr(Uis-orttl»a as this icmrei .» tiot«si ovin.'ii pHnhsps it for rhrlstlanlty mn* nor t.« all ii u nun*- nnnplleated'Mini Its ndvoeiites clntin for It. hut ■ITeie Civil ua HOD it rould ii.'t ;»* imc arquntiited nllh ihe his:or. if ihe world e.iri ponHistnntly claim hat li ba* retarded nrogreaa. U>* eiert lilgntrr. enslaveil «-omen Im irlsoneit ihe Intellect, exalted sen u.tllti demeaned rh*- bod*. in- oiirnged Lnsanllatlon tir icarlilng hm disease if a pnniahtneni for stn .or condemn «-leme and ""■ nclen ill. H|dr.l These antutnr-nts would1 ..i1. more ».'iF-hi if Har Da>a! e.ulit m.'i.T ,„it „,,v iiou-fbrlstl. n French Laundry 9L 3. ruilHlXH. H«-i*--.-t r>.rt-st .Ire and Ramon* at Mince Meat Time is Here We have the ingredients to make it All new and fresh FULLER AND CO. Two Phones—751 and 752 With trolled that make* artist Sbe know* Mrs Munfcr .in hat for I*- sto tiller the irbl that. nothing ran th *|Q II P I Mils reason h.-r nm niRiesilon or effort nf naturalness. n Iworlt out in just this [flue understanding Mis Hunger foils,ions Rllxslwih thiwiueb this oideal 11 jllonever. tn aplte of lijjr severity :<i| toward hrrsnir, ICIIsabetb emerge* the M'lt-n.'i ii-titlon that In a ■al expression of i»**r character ih.- elnso ot the hoot Mrs |el Rives a Nuggoatlun Mm' t «*.ll hsve I n elaborated heroine *-ot:te-ses h» h.r ll llf** fhiil she reels ilien- l» a hnnd]) pie ptesenl nr pa»t, who have !•■ litorv i>r.igres. than Christian oil* have- The Inner have mum to answer lor. hut they are no; laughi bi ih" t'hulsttan wllg Th* reason «bs we .in not pro- ihe p-r*-ss faster Is beeaure ««• nee-lect In fa-1exercise ihe ethical and moral leach ■»ni-la-*a ,,f thrist liar Oayal should onte-noi ko back to anrleni Judaism noi linnl worship for his knowledge bneln-ii It results from Ihelr ui in iiiarrlage it ^^ plain that considers v dee pet than mere l lug li Is apiHtrenily both psy. lot-leal and phy*iologlral n*.u uriier tourhns on n fart thnt I* :lial h.-ii with truth ntlve giv. it has ihe flown on with an aluio.it slartltns:mlll abundance of detail, This oh-.e--.er Rets lutisl be saturated with tbe lire «< olhi the middle west It la not merely {(.hi* that she knows the externals. She)nnd Itnown Just how ihe externals workjrot-ri on eharaeter What is even finer.-rate ahe knows what goes on In the Inner!ami •en mn-1 mis n ess. and she knows bowlenee hiii'-..in beings'art and react on one'trim MOnthSt. Through tl arller ehnp' ibi-n fprs she is presenting dlstlftet Amer-' living together, and may. aft«*r Iran type* In the most Intimate and {couples have been divorced, there Is .Serious of nil hum-in relations, ihe still a strong tie between them, "■tamlly. This heroine ot her*. Ells- .causing th.-m In many caM-a to mar- abeih. Is full Of wholesome emotion.Jtf agriln. We si.mc.tlnj*. rend In (he •of splendid mil billon.- of resentment) newspapers of eouples that hsve •of her surroundings. Inevitably re-jt>een r.-peiitedh married. They slutlng hor tyrannical and nnrrow-|m-em to Us rldl.-nl..iisly lllckle And out of sympathvjyet in their *ery nclclcneaa there Is i work Mrs Muilgnr will tnlie theme and utilise IU eimn ,onal drsiuatlr iHtwnlleaUoa* The helilml it lany explain, at Sll) In pari, whs so many husbands wives, In splie of violent differ * of opinion, in apllu even of e-rsniental antagonisms leading t'hri an It i The .■•■! nineteen hun.lri.i ars ago THE CHRISTIAN SCIENCE MONITOR A I'..:!.«. Ni'i.*|i;i|..'r for tile Home is on sale at, CONGDON & CROME'S or will i... delivered dally by twiTtcr. minded father. frith her narrow-uilndeil and beaten mother, flbs faiull- ing kind of In* ntethliii iral.le loyalty, express- fundamental lu them Christmas Presents ■22 jimieo Best assorted stock of watches and jewelry in Palo Alto. Oct our prices before going elsewhere, they can't be beaten. Everything waranted J. NEILSEN 131 University Avenue \vi:k;h in i. COAL and you'll find a ton weighs l,00i> pounds without th* drlvsr. Just a ton of coat, nothing •)•*. Thl* U the best tins to boy coal. W* are In s position to know, for w* have ■soiled Ofer th« fleln. Better let *• Oil your sidu now. M. c. ford! HaDllltna AefJiiir. XSSSSSSSSSWSSSSSSSHI ■IWW»»*«>.»<»*l»Sw»w«»<*S'<»<»S»S.H.S.«WWS Announcement I am glad to announce that I have completed arrangements for the agency of THE PIANO wJThe desire to place before the people of Paio Alto the besl and most artistic line of pianos and player pianos prompted this arrangement. To appreciate what this means to you will require a visit to my store, where will be found a group of these beautiful instruments, and 1 cordially ask ycu to call. tJW. L. Thornburgh, who is permanently located in Palo Alto has charge of the piano department, and he will gladly demonstrate the BALDWIN to you at your convenience. H. W. Simkins 255 UNIVERSITY AVENUE eeesisiw.ila.a*.n w-.>,ss-w-w-»->a.si-»ias.esiaa»»ai sussnnn-
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