Browsing University of Hertfordshire by Title
Now showing items 11933-11952 of 23976
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Investigation of the Elemental Profiles of Hypericum perforatum as used in Herbal Remedies
(University of Hertfordshire, 2014-03-11)The work presented in this thesis has demonstrated that the use of elemental profiles for the quality control of herbal medicines can be applied to multiple stages of processing. A single method was developed for the ... -
Investigation of the Free-Fall Dynamic Behavior of a Rectangular Wing with Variable Center of Mass Location and Variable Moment of Inertia
(2023-05-15)In recent years, the air-drop launch technology of near-space UAVs has attracted much attention. Between downfall from the carrier and the flight control system’s initiation, the UAV presents free-fall movement. This ... -
An Investigation of the Mechanisms of Wind Generated Surface Waves
(2010-05-25)The goal of wind-waves research is to predict the waves field and its effect on the environment. That environment could be natural or imposed by human endeavour. The mechanism of wind generated waves is described in the ... -
Investigation of the mode of action of nematode neuropeptides
(1996-03)The neuropeptide AF2 has a complex set of actions on the dorsal muscle strip of Ascaris suum, including a potentiation of the acetylcholine-stimulated muscle contraction. Caffeine at 100 μm and 5 mm inhibited this potentiation, ... -
Investigation of the perceived usefulness of a StudyNet group discussion facility by international students
(2005)Postgraduate international students at UK institutions of higher education often find difficulty dealing with seminar-type discussions. An attempt was made to help students with this by utilising the group discussion ... -
Investigation of the Physical and Physiochemical Relationships in Nanoparticles and their Attributions to Antimicrobial Activities
(2021-09-02)Antibiotic resistance is one of the greatest threats to global health, as bacteria are becoming increasingly resistant to antibiotics leading to failure of treatments. This PhD project investigated the physical, chemical ... -
Investigation of the physical properties of spray-dried stabilised lysozyme particles
(2003-09)The aim of this study was to investigate the effect of the composition of formulations on the physical properties, including glass-transition temperatures (Tg) and aerodynamic-related characteristics, of spray-dried lysozyme ... -
Investigation of the potential to reduce waste through sampling and spatial analysis of grain bulks
(2021-07-01)Batches of grain are accepted or rejected based on average mycotoxin concentrations in a composite grain sample. Spatial analysis of mycotoxins in two grain bulks was performed to determine the spatial distribution of ... -
Investigation of the protein alkylation sites of the STAT3:STAT3 inhibitor Stattic by mass spectrometry
(2013-08-15)STAT3 (Signal Transducer and Activator of Transcription factor 3) is constitutively active in a wide range of human tumours. Stattic is one of the first non-peptidic small molecules reported to inhibit formation of the ... -
Investigation of the reaction Ge-74(p,gamma)As-75 using the in-beam method to improve reaction network predictions for p nuclei
(2012-09-14)Background: Astrophysical models studying the origin of the neutron-deficient p nuclides require knowledge of proton capture cross sections at low energy. The production site of the p nuclei is still under discussion but ... -
An investigation of the self-propagating high-temperature synthesis of Ti(Si,Al)
(2005-05-01)The self-propagating high-temperature synthesis (SPS) of TiSi and T Si,AL) powders was investigated. Elemental powders of titanium, silicon and aluminum were used for the synthesis. The sample powders were investigated by ... -
Investigation of the stabilisation of freeze-dried lysozyme and the physical properties of the formulations
(2004-07)The long-term stability of a protein formulation requires that the glass transition temperature (T-g) of the formulation should be maximised and the perturbation of the protein native structure in the dried form after ... -
An investigation of the use of Nile Red as a long-wavelength fluorescent-probe for the study of alpha(1)-acid glycoprotein-drug interactions
(1995-07)Spectrofluorimetry in the long-wavelength region of the electromagnetic spectrum (600-1000 nm) is a fairly recent development in photoluminescence spectroscopy, which has numerous advantages over measurements in the more ... -
An investigation of types leading to an examination of some aspects of F-bounded interfaces and the type classes of Haskell
(University of Hertfordshire, 1992)The treatment of types in programming and in type checking is considered briefly and types are distinguished from classes. The subtyping relation is discussed with particular emphasis on the consequences of combining the ... -
An Investigation of Untapered and Tapered Fibre Transmission Properties
(2023-04-14)This thesis is about investigation of untapered and tapered fibre transmission properties by experimentation and simulation. Tapered fibre fabricated from commercial products and custom fibre from Bath University was ... -
Investigation of Varietal Characteristics Required for Sustainable Agriculture : Final report for Defra Project VS0128
(Department for Environment, Food and Rural Affairs (Defra), 2003-07-01) -
Investigation of vehicle ride height and diffuser ramp angle on downforce and efficiency
(2019-07)Diffusers are typically used in motorsport to generate negative lift (downforce). They also reduce aerodynamic drag and so significantly enhance aerodynamic efficiency. The amount of downforce generated is dependent on ... -
Investigation of wear behavior in self-lubricating ABS polymer composites reinforced with glass fiber/ABS and glass fiber/carbon fiber/ABS hybrid
(2023-03-13)A new hybrid fabrication technique was introduced to manufacture composite laminates made of glass fiber, carbon fiber, and acrylonitrile butadiene styrene (ABS) as the matrix. The fabrication process utilized two different ... -
Investigation of α -induced reactions on Sb isotopes relevant to the astrophysical γ process
(2018-04-16)Background: The reaction rates used in γ-process nucleosynthesis network calculations are mostly derived from theoretical, statistical model cross sections. Experimental data is scarce for charged particle reactions at ... -
Investigation on Induced-Residual Stress During End Milling Operation Using Analytical Modelling
(IOS Press, 2018-09-30)During end milling operation, the residual stresses are developed from two sources: plastic deformation of workpiece material and thermal energy generated. These two sources of residual stresses are often combined as one ...