76 research outputs found
Who am I? Analysing Digital Personas in Cybercrime Investigations
No full textOnline cybercrime activities often involve criminals hiding behind multiple identities (so-called digital personas). Unraveling these multiple digital personas is a non-trivial problem owing to the large amounts of text communicated in online social media and the large numbers of digital personas involved. The cognitive load for cybercrime investigators is immense { existing tools lack the sophisticated capabilities required to analyse digital personas in order to provide investigators with clues to the identity of the individual or group hiding behind one or more personas. In this article, we present the Isis toolkit which addresses this very problem
Unstable Homes, Unstable Lives: A Psychogeographic Exploration of Gentrification in Awais Khan’s In the Company of Strangers
No full textSpaces are never neutral; they actively shape an individual’s consciousness. In the wake of gentrification, these spaces become sites of exclusion, moral decay, and profound loss, where individuals struggle to maintain their sense of self amid shifting social and spatial orders. This article examines Awais Khan’s In the Company of Strangers (2019) through the intersecting lenses of Guy Debord’s concept of psychogeography and Sharon Zukin’s theory of gentrification to explore how urban spatial transformation in Lahore disrupts the psychological and moral integrity of the character(s). The study argues that gentrified spaces are not merely physical constructs but also psychogeographic forces that shape consciousness, manipulate desire, and erode individual agency. The research employs textual analysis, and looks into how Khan uses figurative language, spatial metaphors, visual motifs, and irony to depict the city as both seductive and alienating. Ali’s journey shows how gentrified spaces, built to serve the rich, lead the poor into confusion and loss. Drawn by false hopes of a better life, he becomes trapped in a city that controls his choices and slowly breaks down his sense of self. Moreover, this article argues that Khan’s portrayal of Lahore transforms the city into a symbolic landscape, where gentrification operates as psychological violence and leads to Ali’s tragic unravelling and eventual death
Memory Study in The Danish Girl (2000) by David Ebershoff Through Voyant Text Mining Tools: A Digital Humanities (DH) Study: 1. Muhammad Awais 2. Adeel Khalid
No full textIn this digital era, the world has revolutionised its ways of extracting knowledge patterns based on diverse and large texts using a digital humanities (DH) approach and a range of digital text mining tools available to deconstruct and visualise literary texts. This paper attempts to explore the characters of the novel, ‘The Danish Girl’ by David Ebershoff, through the study of their individual or collective memories through Voyant, a text-mining digital tool for textual analysis. Analysis revealed knowledge patterns on memory in the text through the Voyant text mining tool, which recognizes repeating words and phrases and provides insights into the author\u27s language choices and how they relate to memory studies. It provided textual analysis and allowed data visualisation, collocations, and quantitative and qualitative analysis of the text. The study unveils the summary tool features of the overall corpus, cirrus, unique words, dense words, themes, and phrase tools using a digital humanities approach to text mining, underscoring the significance of digital tools in advancing our understanding of literature and memory
The politics of disaster vulnerability: Flooding, post-disaster interventions and water governance in Baltistan, Pakistan
No full textThis paper uses governance of water infrastructure in two settlements of Baltistan as an entry point to examine the co-production of power and vulnerability. Access to water and irrigated land is a critical factor in determining how the effects of disasters, such as flooding, are socially distributed within a community. At the same time, the governance of water is intimately linked to the longer-term politics of disaster vulnerability. We examine three different forms of disputes over water infrastructure where struggles over authority and social ordering materialise: (i) between and within settlements over access to a water resource; (ii) within settlements over post-disaster water infrastructure development and (iii) between a settlement and the district government over land, water rights and flood protection. The findings illustrate that the governance of water infrastructure involves continuous negotiations, contestations and disputes over access rights. Access to water resources as an expression of rights plays a key role in the recognition of authority relations. In particular, influential individuals seek to legitimise their leadership role in a settlement by representing the rights and interests of groups in the negotiation of these disputes. However, environmental variability and change, including disasters and post-disaster development interventions, alter perceptions of what constitute legitimate rights, and provide spaces for popular contestation of authority relations through silent non-compliance with decisions. The close interlinkages between material and nonmaterial effects of a disaster are a key feature of the co-production of power and vulnerability. By adding authority relations to studies of village-level practices around disasters, we enrich our understanding of the co-production of power and vulnerability and how these dynamics unfold over time. It is only by investigating this co-production that a deeper understanding can be developed of the mechanisms through which vulnerability is either exacerbated or reduced for particular groups.
Corresponding author: Awais Arifeen, Department of International Environment and Development Studies, Faculty of Landscape and Society
Quantum Dot Cellular Automata Check Node Implementation for LDPC Decoders
No full textThe quantum dot Cellular Automata (QCA) is an emerging nanotechnology that has gained significant research interest in recent years. Extremely small feature sizes, ultralow power consumption, and high clock frequency make QCA a potentially attractive solution for implementing computing architectures at the nanoscale. To be considered as a suitable CMOS substitute, the QCA technology must be able to implement complex real-time applications with affordable complexity. Low density parity check (LDPC) decoding is one of such applications. The core of LDPC decoding lies in the check node (CN) processing element which executes actual decoding algorithm and contributes toward overall performance and complexity of the LDPC decoder. This study presents a novel QCA architecture for partial parallel, layered LDPC check node. The CN executes Normalized Min Sum decoding algorithm and is flexible to support CN degree dc up to 20. The CN is constructed using a VHDL behavioral model of QCA elementary circuits which provides a hierarchical bottom up approach to evaluate the logical behavior, area, and power dissipation of the whole design. Performance evaluations are reported for the two main implementations of QCA i.e. molecular and magneti
Design and Shared Control of a Flexible Endoscope with Autonomous Distal Tip Alignment
No full textOpen womb surgery for prenatal therapy is an extreme option which may induce severe side effects on both the fetus and the mother. Minimal invasive surgery (MIS) is, in general, less strenuous than open surgery. Unfortunately, the current tools and techniques are not optimized for the unique environment of the womb. Used in prenatal MIS, the physician
visually assesses the in-utero environment, the fetus and the placenta. This work deals with the use of fetoscopic instruments in photocoagulation therapy using lasers for Twin-to-Twin Transfusion Syndrome (TTTS). The TTTS procedure consists of identifying and coagulating the anastomosing vessels. We propose a fetoscopic instrument with a flexible steerable distal tip as opposed to currently used rigid scopes. The enhanced dexterity improves the ability of the surgeon to coagulate otherwise hard to access regions. We anticipate usability issues and a potentially steep learning curve as currently surgeons
solely work with non-bendable instruments. To alleviate this problem, a shared control approach is proposed in which the surgeon controls the position of the instrument inside the uterus while an autonomous controller controls the orientation. The system is validated by testing on a novel instrument with 2 actuated degrees of freedom in an in-silico setup featuring a real placenta image, a motion tracking system and a mechanical fulcrum point to mimic the incision port. The autonomous distal tip controller achieved an overall 4.75 ◦ RMSE with respect to
the desired orientation, which is within the targeted range of orientations.sponsorship: This work was supported by Erasmus Mundus FetalMed PhD Program, and in part by a grant from The Innovative Engineering for Health Award by Wellcome Trust (WT101957). (Corresponding author: Mirza Awais Ahmad.) (Erasmus Mundus FetalMed PhD Program, Innovative Engineering for Health Award by Wellcome Trust|WT101957, Wellcome Trust|101957/Z/13/Z)status: Publishe
Does transformation occur through the process of inquiry? : exploring the role and responsibility of the process consultant working within a psychoanalytic framework
No full textThis thesis was scanned from the print manuscript for digital preservation and is copyright the author.
Researchers can access this thesis by asking their local university, institution or public library to
make a request on their behalf. Monash staff and postgraduate students can use the link in the References field
An Adaptive Hybrid Fuzzy-Wavelet Approach For Image Steganography Using Bit Reduction And Pixel Adjustment
No full textTransform-based techniques partially address challenges like robustness and the imperceptibility in image steganography. Such approaches, however, increase the memory requirement and reduce the quality of the cover image and hiding capacity. Moreover, the steganography is always coupled with cryptography to strengthen the confidentiality. This paper presents an adaptive hybrid method for image steganography procedure based on bit reduction and pixel adjustment using the fuzzy logic and integer wavelet transform technique. The fuzzy set theory provides powerful tools to represent and process human knowledge in the form of fuzzy if-then rules that can resolve difficulties in image processing arising due to the uncertainty of the data, tasks, and results. We apply a bit reduction algorithm to each byte of the data which are to hide in the cover image. This decreases the memory usage and increases the capacity. The embedding of the input text into the cover image distorts the cover image. Hence, to minimize the visual difference between the cover image and the text embedded image, an optimum pixel adjustment algorithm is applied to the text embedded image. Simulation results demonstrate the effectiveness of our proposed approach
Indirect determination of partial depolymerization reactions in dialdehyde celluloses (DAC) by gel permeation chromatography of their oxime derivatives
No full textFunding Information: This work was a part of the Academy of Finland's Flagship Programme under Projects No. 318890 and 318891 (Competence Center for Materials Bioeconomy, FinnCERES). The support by the Austrian Biorefinery Center Tulln (ABCT-II) is gratefully acknowledged. The authors thank Muhammad Awais for help in the visualization of the results. Publisher Copyright: © 2023, The Author(s).Owing to a supposed quantitative transformation, oximation of dialdehyde cellulose (DAC) with hydroxylamine hydrochloride is commonly employed in chemical DAC analysis, e.g., for the determination of the degree of oxidation (DO) by titration or elemental analysis. In this study, this modification was utilized for the indirect determination of molecular weight distributions (MWD) by gel permeation chromatography (GPC). The presumably quantitative conversion of aldehyde groups in DAC to the corresponding oxime also breaks up the intermolecular and intramolecular hemiacetal crosslinks, which were associated with solubility issues in the DMAc/LiCl solvent system in previous studies. The limits of the procedure and the material's stability during oximation were investigated. For samples with a DO up to approximately 9% a good applicability was observed, before at higher DO values residual crosslinks led to solubility problems. The oximation/GPC protocol was used to examine the development of the MWD in the early stages of DAC formation under different reaction conditions. The time-dependent partial depolymerization of the polymer backbone was observed. Furthermore, the stability of DAC towards different pH conditions ranging from strongly acidic to strongly alkaline was tested. The depolymerization of DAC in alkaline media occurred with concomitant degradation of aldehyde moieties. In turn, DAC proved to be remarkably stable in acidic and neutral solutions up to a pH of 7.Peer reviewe
Interfacing Power System and ICT Simulators: Challenges, State-of-the-Art, and Case Studies
No full textWith the transition towards a smart grid, the power system has become strongly intertwined with the information and communication technology (ICT) infrastructure. The interdependency of both domains requires a combined analysis of physical and ICT processes, but simulating these together is a major challenge due to the fundamentally different modeling and simulation concepts. After outlining these challenges, such as time synchronization and event handling, this manuscript presents an overview of state-of-the-art solutions to interface power system and ICT simulators. Due to their prominence in recent research, a special focus is set on co-simulation approaches and their challenges and potentials. Further, two case studies analyzing the impact of ICT on applications in power system operation illustrate the necessity of a holistic approach and show the capabilities of state-of-the-art co-simulation platforms.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Intelligent Electrical Power Grid
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