6 research outputs found
PERANCANGAN PORTFOLIO DESAIN ARSITEKTUR BERBASIS AUGMENTED REALITY UNTUK MEMENUHI USER USABILITY & USER EXPERIENCE
No full textJika membutuhkan abstrak atau isi jurnal silahkan menghubungi author melalui e-mail [email protected], [email protected], atau [email protected]
Detection of low Temperature heat release (LTHR) in the standard Cooperative Fuel Research (CFR) engine in both SI and HCCI combustion modes
No full textTo this date, extensive research has been conducted to understand the low-temperature auto-ignition chemistry of gasoline. The detection of low-temperature chemical reactions under Spark Ignition (SI) combustion cannot be detected, as they are hidden by the flame propagation. Alternatively, Homogeneous Charge Compression Ignition (HCCI) combustion has a two-stage combustion involving low and high-temperature heat release (LTHR and HTHR respectively). Both Knocking SI and HCCI combustion involve auto-ignition and are governed by fuel characteristics and the pressure-temperature (P-T) history. Therefore, HCCI combustion might provide an alternative to understand the knocking behavior and LTHR in modern SI engines. A standard Cooperative Fuel Research (CFR) engine was operated at lean HCCI conditions (lambda 3), as well as SI conditions at stoichiometry. For SI combustion, the CFR engine was operated with RON-like conditions, but at late spark timing to induce LTHR prior to flame propagation. Three RON 90 binary fuel blends were investigated, being composed of n-heptane with isooctane, toluene, or ethanol. This work demonstrated that the CFR engine under stoichiometric SI with late spark timing and HCCI combustion mode can help to detect LTHR which is not possible in the standard RON test. The intake pressure and temperature sweeps showed similar effects on LTHR for both combustion modes. The linking of auto-ignition behavior of SI and HCCI was dependent primarily on intake valve closing (IVC) conditions. The high exhaust temperature in SI lead to high IVC temperatures. In order to match the IVC temperatures and to overlap the P-T trajectories, the intake temperature for HCCI was increased.The author would like to thank both King Abdullah University of Science and Technology and Argonne National Laboratory for their support during the publication of this article. Specifically, the research funds were provided by King Abdullah University of Science and Technology and the experimental facilities by Argonne National Laboratory. The author would also like to thanks Nimal Naser for providing a code used for post-processing the experimental data, Timothy Rutter for his support in the Laboratory and the section manager Doug Longman. The submitted manuscript has been created in part by UChicago Argonne, LLC, Operator of Argonne National Laboratory (“Argonne”). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under ContractNo. DE-AC02-06CH11357. The U.S. Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan. http://energy.gov/ downloads/doe-public-access-plan. This work is performed under the auspices of the Office of Energy Efficiency and Renewable Energy, Office of Vehicle Technology, U.S. Department of Energy, under contract number DE-AC02-06CH11357, as part of the Co-Optimization of Fuels & Engines (Co-Optima)
The Irish plays of James Shirley, 1636-1640
No full textAlthough he was a prominent and influential playwright during his theatrical career,
the work of James Shirley (1596-1666) has been neglected since Dryden's description
of him in 'MacFlecknoe' as a mere 'type...of tautology'. Shirley holds a unique place
amongst Caroline dramatists as, at the height of his career, he left London to become
resident playwright of the first purpose-built theatre in Ireland, the Werburgh Street
Theatre. This seminal event has received fairly little attention from scholars, and the
plays of this Irish period (The Royal Master, The Doubtful Heir, The Gentleman of
Venice, The Politician and St. Patrick for Ireland) have not previously been examined
as a whole.
This thesis examines Shirley's Irish period in its entirety, from the
circumstances surrounding his move to Dublin in 1636, through an exploration of his
relationship with the Werburgh Street Theatre and what influenced his Irish plays, to
the factors which resulted in his return to England in 1640. The thesis historicises the
production of these plays in their socio-political context. The chapters
(chronologically arranged by play) provide close textual studies and contextual
material relating the texts to their patrons, performance spaces, audiences, print history
and Irish politics. This research reveals that during this four year period, Shirley
gradually adapted his writing style in a targeted attempt to appeal to the tastes of the
Dublin audience. Shirley managed the theatre with John Ogilby, who was appointed
Master of the Revels in Ireland by Lord Deputy Wentworth. An analysis of the
relationship between these three key figures has contributed to a comprehensive
picture of the socio-political conditions of Shirley‘s writing. Through the investigation
of Shirley's work and professional position during this time, this thesis builds on
recent critical recovery work (including that by Hadfield/Maley, Rankin, Dutton) on
the literary-political circumstances of Stuart Ireland
Violence and Fragility: A Study of Violent Young Offending in Yemen and Other Fragile States
No full textThis thesis examines the relationship between violent young offending that has no clear political motive and state fragility. It does so by conducting an in-depth evaluation of crime, underdevelopment and crime control systems in Yemen, using existing theories of criminology and international development to suggest new ways of understanding and responding to violent criminal behaviour in that country and elsewhere. While one of the stated goals of this thesis is to generate new theoretical understandings of criminal violence in Yemen, its main contribution to knowledge is that it brings criminological theory into the discourse on international socio-economic underdevelopment in order to open up a new conduit for the academic analysis of fragility. In so doing, it merges criminological theory with the study of international development and state fragility, where the two academic disciplines have previously remained quite separate.
The above aims are achieved through an extensive study of the Yemeni development context, based upon a combination of field research interviews conducted with prominent stakeholders in Yemen, distance research by phone and online conducted with Yemeni stakeholders, and expert consultations conducted with important analysts working either on Yemen directly or more broadly in the area of security and justice reform. The research itself, meanwhile, also provides a detailed overview of relevant theory and literature on criminology, justice reform and state fragility, while being supported by Yemeni criminal justice statistics.
In light of the theoretical emphasis of this investigation, the findings of this thesis are suggestive rather than empirical. The author argues that the absence of state services, legitimate opportunities and socialising activities for young people, along with their exposure to significant levels of violence, produces extreme economic, psychological and socio-cultural stresses that lead to their increased aggression and rejection of state legitimacy, all of which combine to raise the likelihood of violent young offending in Yemen. It is argued that these trends yield a coherent analytical framework with relevant lessons for other fragile states, notwithstanding that Yemen's cultural specificities and tribal communities have produced unique influences that distinguish it from other fragile settings
SPARC 2019 Fake news & home truths : Salford postgraduate annual research conference book of abstracts
No full textWelcome to the Book of Abstracts for the 2019 SPARC conference. This year we not only celebrate the work of our PGRs but also our first ever Doctoral School Best Supervisor awards, which makes this year’s conference extra special. Once again we have received a tremendous contribution from our postgraduate research community; with over 90 presenters, the conference truly showcases a vibrant, innovative and collaborative PGR community at Salford. These abstracts provide a taster of the inspiring, relevant and impactful research in progress, and provide delegates with a reference point for networking and initiating critical debate. Find an abstract that interests you, and say “Hello” to the author. Who knows what might result from your conversation? With such wide-ranging topics being showcased, we encourage you to take up this great opportunity to engage with researchers working in different subject areas from your own. To meet global challenges, high impact research needs interdisciplinary collaboration. This is recognised and rewarded by all major research funders. Engaging with the work of others and forging collaborations across subject areas is an essential skill for the next generation of researchers. Even better, our free ice cream van means that you can have those conversations while enjoying a refreshing ice lolly
Outcomes Following Vascular and Endovascular Procedures Performed During the First COVID-19 Pandemic Wave
No full textObjective: The first COVID-19 pandemic wave was a period of reduced surgical activity and redistribution of resources to only those with late stage or critical presentations. This Vascular and Endovascular Research Network COVID-19 Vascular Service (COVER) study aimed to describe the six-month outcomes of patients who underwent open surgery and or endovascular interventions for major vascular conditions during this period. Methods: In this international, multicentre, prospective, observational study, centres recruited consecutive patients undergoing vascular procedures over a 12-week period. The study opened in March 2020 and closed to recruitment in August 2020. Patient demographics, procedure details, and post-operative outcomes were collected on a secure online database. The reported outcomes at 30 days and six months were post-operative complications, re-interventions, and all cause in-hospital mortality rate. Multivariable logistic regression was used to assess factors associated with six-month mortality rate. Results: Data were collected on 3 150 vascular procedures, including 1 380 lower limb revascularisations, 609 amputations, 403 aortic, 289 carotid, and 469 other vascular interventions. The median age was 68 years (interquartile range 59, 76), 73.5% were men, and 1.7% had confirmed COVID-19 disease. The cumulative all cause in-hospital, 30-day, and six-month mortality rates were 9.1%, 10.4%, and 12.8%, respectively. The six-month mortality rate was 32.1% (95% CI 24.2-40.8%) in patients with confirmed COVID-19 compared with 12.0% (95% CI 10.8-13.2%) in those without. After adjustment, confirmed COVID-19 was associated with a three times higher odds of six-month death (adjusted OR 3.25, 95% CI 2.18-4.83). Increasing ASA grade (3-5 vs. 1-2), frailty scores 4-9, diabetes mellitus, and urgent and or immediate procedures were also independently associated with increased odds of death by six months, while statin use had a protective effect. Conclusion: During the first wave of the pandemic, the six-month mortality rate after vascular and endovascular procedures was higher compared with historic pre-pandemic studies and associated with COVID-19 disease. (c) 2024 The Author(s). Published by Elsevier Ltd on behalf of European Society for Vascular Surgery. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
