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  • Z-direction heat transfer in composites hybridised with large diameter metallic pins 
    Neale, Geoffrey; Fu, Y.; Skordos, Alexandros A. (ICCM, 2023-08-04)
    Continuous fibre reinforced polymer composites have a well-established track record of excellent structural performance but generally lack non-structural functionalities inherent in legacy materials like metals. As the ...
  • Z-pinning techniques to improve energy absorption capabilities of CFRP tubular structures 
    Ramírez, J. G.; Ghasemnejad, Hessam (Springer, 2023-05-23)
    This paper investigates the use of z-pinning reinforcement in CFRP tubular structures under axial impact, to find the optimum design to increase the specific energy absorption (SEA). Through-the-thickness reinforcement is ...
  • Zero carbon manufacturing facility - towards integrating material, energy, and waste process flows 
    Ball, Peter D.; Evans, Stephen; Levers, A.; Ellison, D. (Professional Engineering Publishing, 2009-09-01)
    The increasing pressure on material availability, energy prices, as well as emerging environmental legislation is leading manufacturers to adopt solutions to reduce their material and energy consumption as well as their ...
  • Zero carbon manufacturing through process flow modelling 
    Despeisse, Melanie; Ball, Peter; Evans, Steve; Levers, Andy (2012-10-16)
    The pressure on natural resources and emerging environmental legislation are leading manufacturers to adopt solutions to reduce their environmental impact, thereby becoming more sustainable, while enhancing competitiveness. ...
  • A zero-dimensional model of turbulent combustion in a homogeneous charge spark ignition engine. 
    De Castro, F. L. J. (1989-05)
    In the present work a zero-dimensional model of turbulent combustion has been developed for the spark ignition engine. In addition to the prediction of thermodynamic state properties, the model includes the following ...
  • Zero-effort-miss shaping guidance laws 
    Lee, Chang-Hun; Shin, Hyo-Sang; Lee, Jin-Ik; Tahk, Min-Jea (IEEE, 2017-10-18)
    This paper suggests a new approach in designing homing guidance laws to enable direct shaping of the pattern of zero-effort-miss (ZEM) as desired. The proposed approach uses the concept of weighted ZEM and its specific ...
  • Zirconium as a coagulant for enhanced natural organic matter removal 
    Molinder, Roger (Cranfield University, 2009)
    Coagulation is the most common way to remove the bulk of natural organic matter (NOM) from moorland source waters during drinking water treatment. Deteriorating water quality and tightening regulations have created the ...
  • ZnO nanoleaves with superior photodetection properties 
    Alenezi, Mohammad R.; Almeshal, Abdullah M.; Alkhaledi, Abdullah N. F. N. R. (Royal Society of Chemistry, 2022-07-19)
    Controlled multiphase hydrothermal synthesis technique was developed to design and grow hierarchical zinc oxide (ZnO) nanostructures with high surface-to-volume ratio. ZnO nanoleaves (ZNLs) and nanoflakes (ZNFs) assembled ...
  • A zonal safety analysis methodology for preliminary aircraft systems and structural design 
    Chen, Z.; Fielding, John P. (Cambridge University Press, 2018-07-04)
    Zonal Safety Analysis (ZSA) is a major part of the civil aircraft safety assessment process described in Aerospace Recommended Practice 4761 (ARP4761). It considers safety effects that systems/items installed in the same ...
  • Zwitterionic materials for photonic applications 
    Kuczynski, Andrzej. Piotr. (Cranfield University, 1992-07)
    A series of zwitterionic materials of general formula R-D*-CH=C(CN)- CÖH4-C(CN)2', where D* is a pyridirium or quinolinium acceptor and R is a hydrophobic alkyl chain or an aryl group, were deposited using the ...
  • β Grain refinement by yttrium addition in Ti-6Al-4V Wire-Arc Additive Manufacturing 
    Kennedy, Jacob R.; Davis, Alec E.; Caballero, Armando E.; Byres, N.; Williams, Stewart; Pickering, E. J.; Prangnell, P. B. (Elsevier, 2021-11-14)
    Wire-Arc Additive Manufacturing (WAAM) of large near-net-shape titanium parts has the potential to reduce costs in aerospace applications. However, with titanium alloys, such as Ti-6Al-4V, conventional WAAM processing ...
  • ℒ1 adaptive control of quadrotor UAVs in case of inversion of the torque direction 
    Souanef, Toufik; Whidborne, James F.; Boubakir, Ahsene (SCIE Publish, 2023-10-10)
    This paper presents a method for fault tolerant control of quadrotor UAVs in case of inversion of the torque direction, a situation that might occur due to structural, hardware or software issues. The proposed design is ...
  • ℒ1 adaptive output feedback control of small unmanned aerial vehicles 
    Souanef, Toufik (World Scientific Publishing, 2022-07-22)
    An approach for output feedback ℒ1 adaptive control of small Unmanned Aerial Vehicles (UAVs) is presented in this paper. The design is based on a state observer instead of the state predictor. The main advantage is that a ...
  • ℒ1 adaptive path-following of airships in wind 
    Souanef, Toufik; Whidborne, James F.; Liu, Shi Qian (World Scientific, 2023-05-06)
    This paper proposes an adaptive, three dimensional (3D) path-following controller for airships in the presence of wind disturbances, which explicitly considers that wind speed is time-varying. The main idea is to formulate ...
  • ℒ1 adaptive path-following of small fixed-wing unmanned aerial vehicles in wind 
    Souanef, Toufik (IEEE, 2022-02-25)
    This paper proposes an adaptive path-following controller of small fixed-wing Unmanned Aerial Vehicles (UAVs) in the presence of wind disturbances, which explicitly considers that wind speed is time-varying. The main idea ...