325,151 research outputs found

    Walmsley, Raymond F, NX1334

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/423727Surname: WALMSLEY. Given Name(s) or Initials: RAYMOND F. Military Service Number or Last Known Location: NX1334. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 46576.250242 Item: [2016.0049.55988] "Walmsley, Raymond F, NX1334

    Walmsley, L K, 435740

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/423724Surname: WALMSLEY. Given Name(s) or Initials: L K. Military Service Number or Last Known Location: 435740. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 57591.250239 Item: [2016.0049.55985] "Walmsley, L K, 435740

    Walmsley, Leslie Cornelius, B2261

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/423725Surname: WALMSLEY. Given Name(s) or Initials: LESLIE CORNELIUS. Military Service Number or Last Known Location: B2261. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 35500.250240 Item: [2016.0049.55986] "Walmsley, Leslie Cornelius, B2261

    Heat Integrated Milk Powder Production

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    Dairy processing is critical to New Zealand’s (NZ) economy producing NZ13billioninexportsfor2012whileconsuming32PJoffossilfuelsforprocessheat.ThreequartersofNZdairyexportsaremilkpowders.ThisthesispresentsmethodstoreduceprocessheatuseinMilkPowderPlants(MPP)throughimprovedheatintegrationandaddresseskeytechnicalchallengespreventingindustrialimplementation.Myoriginalcontributionstoliteratureinclude:(1)anoveldesignmethodcalledtheCostDerivateMethod(CDM)thatcostoptimallyallocatesareaindirectheatexchangenetworks,(2)anewdesignmethodologyforintegrationofsemicontinuousprocessclustersusingaHeatRecoveryLoop(HRL)withaVariableTemperatureStorage(VTS)systemforimprovedheatrecovery,(3)anexperimentallyvalidateddepositionmodelforpredictingcriticalairconditionsthatcausemilkpowderfouling,and(4)athermoeconomicassessmenttoolfortheoptimisationofindustrialspraydryerexhaustheatrecoveryprojectsviaaLiquidCoupledLoopHeatExchanger(LCHE)system.ByapplyingPinchAnalysistoanindustrialMMP,thisworkconfirmsthatheatmustberecoveredfromthemilkspraydryerexhaustair( 75°C)toachievemaximumheatintegrationinMPPs.ForstandaloneMPPsexhaustheatisbestusedtoindirectlypreheattheinletdryerairreducingsteamuseby12.7AkeybarrierpreventingexhaustheatrecoveryimplementationinNZMPPsisthepossibilityofmilkpowderfouling.Dryerexhaustaircontainsalowconcentrationofpowderthatwhenexposedtolowtemperaturesathighhumiditybecomessticky.Foraheatexchangerfaceairvelocityof4m/s,experimentaldatafrommilkpowderfoulingtestsofflatplates,tubesandfinsindicatesparticulatefoulingbecomesseverewhentheexhaustairtemperaturereaches55°C.Higherfacevelocitiesareshowntolowerthiscriticalexhausttemperatureforavoidingseverefouling,whichgivespotentialforincreasedheatrecoverybutforincreasedpressuredrop.Lowerfacevelocitiesshowtheoppositeeffect.Designingexhaustheatrecoverysystemsentailanacutetradeoffbetweenheattransfer,pressuredropandfouling.Twoimportantdesignparametersarethenumberoftuberowsintheexhaustheatexchangerandthefacevelocity.TheoutputsofathermoeconomicspreadsheettoolsuggestLCHEsystemsforadryerproducing23.5t/hiseconomic.Withafacevelocityof4m/sand14rowsoffinnedroundtube,theprojecthadanestimatedpaybackof1.6years,anetpresentvalueofNZ13 billion in exports for 2012 while consuming 32 PJ of fossil fuels for process heat. Three quarters of NZ dairy exports are milk powders. This thesis presents methods to reduce process heat use in Milk Powder Plants (MPP) through improved heat integration and addresses key technical challenges preventing industrial implementation. My original contributions to literature include: (1) a novel design method called the Cost Derivate Method (CDM) that cost optimally allocates area in direct heat exchange networks, (2) a new design methodology for integration of semi-continuous process clusters using a Heat Recovery Loop (HRL) with a Variable Temperature Storage (VTS) system for improved heat recovery, (3) an experimentally validated deposition model for predicting critical air conditions that cause milk powder fouling, and (4) a thermo-economic assessment tool for the optimisation of industrial spray dryer exhaust heat recovery projects via a Liquid Coupled Loop Heat Exchanger (LCHE) system. By applying Pinch Analysis to an industrial MMP, this work confirms that heat must be recovered from the milk spray dryer exhaust air (~75 °C) to achieve maximum heat integration in MPPs. For stand-alone MPPs exhaust heat is best used to indirectly preheat the inlet dryer air reducing steam use by 12.7 % for a 55 °C exhaust outlet. Additional economic heat recovery from condensate and vapour flows decreased steam use by a further 6.9 %. Application of the CDM to the liquid and vapour sections of new MMP maximum energy recovery networks reduced total cost by 5.8 %. For multi-plant dairy factories, a second industrial case study showed the exhaust heat may be integrated with neighbouring plants via a HRL with VTS to increase site heat recovery by 10.8 MW including 5.1 MW of exhaust heat recovery, compared to 7.9 MW using a conventional HRL design method with constant temperature storage. A key barrier preventing exhaust heat recovery implementation in NZ MPPs is the possibility of milk powder fouling. Dryer exhaust air contains a low concentration of powder that when exposed to low temperatures at high humidity becomes sticky. For a heat exchanger face air velocity of 4 m/s, experimental data from milk powder fouling tests of flat plates, tubes and fins indicates particulate fouling becomes severe when the exhaust air temperature reaches 55 °C. Higher face velocities are shown to lower this critical exhaust temperature for avoiding severe fouling, which gives potential for increased heat recovery but for increased pressure drop. Lower face velocities show the opposite effect. Designing exhaust heat recovery systems entail an acute trade-off between heat transfer, pressure drop and fouling. Two important design parameters are the number of tube rows in the exhaust heat exchanger and the face velocity. The outputs of a thermo-economic spreadsheet tool suggest LCHE systems for a dryer producing 23.5 t/h is economic. With a face velocity of 4 m/s and 14 rows of finned round tube, the project had an estimated payback of 1.6 years, a net present value of NZ3 million and internal rate of return of 71 %. This tool will empower industry with greater confidence to uptake exhaust heat recovery technology as a vital method for improving the heat integration of MPPs in NZ

    Integration of solar heating into heat recovery loops using constant and variable temperature storage

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    Solar is a renewable energy that can be used to provide process heat to industrial sites. Solar is extremely variable and to use it reliably thermal storage is necessary. Heat recovery loops (HRL) are an indirect method for transferring heat from one process to another using an intermediate fluid (e.g. water, oil). With HRL’s thermal storage is also necessary to effectively meet the stop/start time dependent nature of the multiple source and sink streams. Combining solar heating with HRL’s makes sense as a means of reducing costs by sharing common storage infrastructure and pipe transport systems and by lowering nonrenewable hot utility demand. To maximise the value of solar in a HRL, the means of controlling the HRL needs to be considered. In this paper, the HRL example and design method of Walmsley et al. (2013) is employed to demonstrate the potential benefits of applying solar heating using the HRL variable temperature storage (VTS) approach and the conventional HRL constant temperature storage (CTS) approach. Results show the VTS approach is superior to the CTS approach for both the non-solar and solar integration cases. When the pinch is around the hot storage temperature the CST approach is constrained and the addition of solar heating to the HRL decreases hot utility at the expenses of increased cold utility. For the VTS approach the hot storage pinch shifts to a cold storage pinch and increased heat recovery is possible for the same exchanger area without solar. With solar the VTS approach can maintain the same heat recovery while also reducing hot utility still further due to the presence of solar, but only with additional area. When the pinch is located around the cold storage temperature, solar heating can be treated as an additional heat source and the benefits of CTS and VTS are comparable

    The epitome of an oxymoronic endeavour : collaborative performative photography between still and movement artists : a thesis presented in partial fulfillment of the requirements for the degree of Master of Fine Arts at Massey University, Wellington, New Zealand

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    ‘Attempting to capture this transience, this constant appearing and disappearing, through the medium of the still photograph might seem the epitome of oxymoronic endeavour’. Michael Parmenter. (Parmenter, M. in McDermott 2015. p6). An Oxymoronic Endeavour is the resulting artwork of a collaboration between photographer, Celia Walmsley, and New Zealand dancer/choreographer (dance maker), Jessie McCall. It combines two oxymoronic (apparently contradictory) art forms where one artist is also the subject of the resulting images. McCall and Walmsley co-author the development of the artwork and Walmsley is the author of the exegesis. Through this production collaboration Walmsley and McCall explored the oxymoronic relationship and use of photography and movement. The resulting artwork is not a recording of a performance that will be repeated. The choreography and performance occurred only for the purpose of creating the images and exist only in the resulting ‘performative’ (Baker. S. & Moran. F. 2016) photographic work and its associated writing. The work breaks with the traditional style of dance photography, and with the conventional role of ‘still’ photography in relation to dance, as the ‘revelatory authority’ (the power of the camera to show what has been) of other artists’ work. (Reason. M. 2004). Use of and the critique of, collaboration and co-authorship are essential elements in the artwork’s process, form and outcomes. This reflects Daniel Palmer’s (2017) proposal on the move away, since the 1960s, from the ‘art-world trope’ of sole adventurer photographer towards collaborative work. Issues of agency, power, and the link between authorship and authority, also influenced the work. Through the essential component of collaboration An Oxymoronic Endeavour developed into ‘performative’ photography between photographer and choreographer/dance artist. The work contributes to the sparsely populated field of collaborative ‘performative’ photography which also represents a paradigm shift in the way that photography and dance are created, presented and consumed

    Moravian missions.

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    Moravian missions. Vol. 13, no. 3 (March 1915).; CNS Periodical.; Summary: Provides an account of Nurse Walmsley's voyage on the mission ship "Harmony" along the coast of Labrador, with stops in Mugford Tickle, Hebron and Okak

    The chemistry of the defensive secretions of South American termites

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    The chemical constituents of the defence secretion produced by the soldier caste of forty species of South American termites were investigated with the major emphasis being placed on the volatile components of the secretion. Six species of the genus syntermes were studied and it was found that cis-8ocimene constituted 90% of the secretion of S.'dirus;'S. peruahus, S. molestus, S. brevimalatus and Syntermes sp. In contrast none of this compound is produced by S. randis and it was shown that these differences in the secretion can be related to the defensive behaviour of these species. The analysis of the soldier secretion of Curvitennes strictinasus showed the presence of limonene, terpinolene, p-cymen-8-ol, tridecan-Z-one, a tridecen-2-one, trans,trans-farnesal and cis,trans-farnesal. The major component being TFFpieoTene -which -accounts Tor 60% of the secretion. The soldiers of Cortaritermes silvestri were found to produce three monoterpene hydrocarbons and cis-pin-3-en-2-yl acetate. The synthesis of this acetate from a-pinene by reaction with lead tetraacetate was carried out. Three of the four diterpenes in this secretion were identified as the triacetate, diacetate, propionate and acetate dipropionate of 3a,98,12a-trihydroxy11(12),15(17)-trinervitadiene, the former two compounds have not been identified previously. The soldier secretion of Nasutitermes sp. n. D., Nasutitermes kemneri and Constrictotermes cyphergaster were und to contain a mixture of monoterpene hydrocarbons and diterpenes. The major diterpene in the soldiers of Nasutitennes sp. n. D. being 98-hydroxy-1(15),8(19)-trinervitadiene and the ma or iterpenes in N. kemneri are 2a,38-dihydroxy-1(15),8(9)- and 1(15), 8(19)-trinervitadienes. Analysis of an extract of the soldier caste of Amitermes sp. X. indicated the presence of eight sesquiterpene hydrocarbons,-1T-epoxy-cis-eudesmane, eudesm-l1-en-48-ol and another eudesmane alcohol, the synthesis of 5-e~~ pi-eudesm-ll-en-4a-ol from (-)-carvone via a Robinson ring annulation is discribed. Preliminary gas chromatography mass spectroscopy was carried out on extracts of the soldiers of the genera Procornitermes, Cornitennes, Rhinotennes, Amitermes, Armiterries, Triangularitermes and Hotunditerines which revealed a range of compounds from methyl esters, to methyl Ketones, alkanes and alkenes. The latter two genera were found to produce diterpenes. A total of fifteen species of termites from the genera Angularitennes, Diversitermes, Velocitermes and Nasutitermes were found to have soldiers which produced secretions containing mixtures of mono- and diterpenes.</p

    Kinetics Of Ordering In Graphite Sbcl5 And Alcl3 Studied By Esr

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    Spin resonance experiments allowed us to study the kinetics of ordering in the quasi-2D order-disorder phase transition observed at Tc = (210 ± 2) K for SbCl5-GIC stage 4 and at Tc = (168 ± 2)K for AlCl3-GIC stage 7. Quenching from the disorder phase (T ≫ Tc) reveals a time broadening of the resonance linewidth with scaling behavior (σ tn), which we attribute to the time growing of the average linear domains size of a weakly incommensurate superlattice. © 1988.231-44348Rolla, Walmsley, Suematsu, Torriani, Rettori, Yosida, (1986) Solid State Comm., 58, p. 333Stein, Walmsley, Gualberto, Rettori, (1985) Phys. Rev., 32 B, p. 4774S. Rolla, L. Walmsley, H. Suematsu, C. Rettori and Y. Yosida, accept in Phys. Rev. Brief ReportStein, Walmsley, Rolla, Rettori, Kinetics of ordering in the order-disorder phase transition of AlCl_{3}-intercalated graphite studied using ESR (1986) Physical Review B, 33 B, p. 6521Elliot, Theory of the Effect of Spin-Orbit Coupling on Magnetic Resonance in Some Semiconductors (1954) Physical Review, 96, p. 266Homma, Clarke, (1985) Phys. Rev., 31 B, p. 5865Hwang, Nicolaides, Ultrasonic studies of phase transitions in stage-4 antimony pentachloride intercalated graphite (1984) Solid State Communications, 19, p. 483Bittner, Bretz, (1985) Phys. Rev., 31 B, p. 1060Pietronero, Strassler, (1981) Synth. Met, 3, p. 213Sahni, Srolovitz, Grest, Anderson, Safran, (1983) Phys. Rev., 28 B, p. 270

    Economic Analysis of U.S. Immigration Reforms

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    In January 2004, President George Bush proposed the creation of a temporary worker program to allow more migrant workers to enter the US legally. This new temporary worker program would be open to undocumented workers in the US, as well as to prospective migrants currently residing abroad. The program would temporarily allow immigrants to fill jobs that, according to employers, would otherwise go unfilled at the current wage. The US Congress vetoed the presidential proposal, however, and requested a stricter enforcement of immigration law and the consequent deportation of undocumented immigrants. This study analyzes the economic effects of these immigration reforms on the US economy using an applied global general equilibrium model of migration. In this paper the global trade and migration model (GMig2) developed by Walmsley, Winters and Ahmed (2007) is modified to include a third labor category – undocumented unskilled – to reflect estimates of undocumented workers residing in the United States. The model is then used to analyze the impacts of two policy scenarios on the US economy: first, the deportation of undocumented workers currently residing in the US; and second, the legalization of undocumented agricultural workers. The first scenario is implemented through a decline in the number of undocumented workers residing in the US to zero, and a corresponding increase in the number of workers in Mexico. The second scenario is achieved by allowing undocumented workers to obtain legal status, thereby increasing their wages and productivity. We find that the deportation of undocumented workers causes a considerable loss to the US economy in terms of real GDP. Legalization of Mexican undocumented immigrants, on the other hand, is found to increase US real GDP. Hence the paper demonstrates there are clear advantages to the US economy of implementing proposals that both allow migrant workers to remain in the United States and increase the workers ability to participate freely in the US labor force as legal residents.US Undocumented Workers, Applied General Equilibrium, Political Economy,
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