Women's Studies on the Air

Mina ROCES 이화여자대학교 아시아여성학센터 2012 이화여자대학교 아시아여성학센터 학술대회자료집 Vol.2012 No.1

This paper will focus on the use of radio and television for feminist advocacy? exploring in particular how womens organizations used radio and television to represent and fashion the Filipino woman. I argue that the radio and television shows were like classrooms intending to give audiences a basic womens studies course while giving practical tips on how they could empower themselves (through advertising various services available to them?eg counseling for victims of domestic violence, and health clinics for checkups). The new epistemology of the womens movement was introduced to audiences through a talk show format that allowed resource persons to be brought in as experts to demystify and define complex new feminist vocabularies such as trafficking, sexuality, lesbianism, sexual harassment, and reproductive health. The media was primarily used as an educational tool?as Infotainment to introduce the radical ideas of the feminist movement. In this case radio and television were used as classrooms to deliver courses on womens studies in the media.

Ultrasound Assisted Oxidative Desulfurization: A Definitive Screening Design Analysis

Angelo Earvin Sy Choi,Susan Roces,Nathaniel Dugos,Meng-Wei Wan,Hung-Suck Park 한국폐기물자원순환학회 2016 한국폐기물자원순환학회 학술대회 Vol.2016 No.11

The desulfurization of untreated petroleum oil is required in order to comply with stringent environmental regulations. Ultrasound-assisted oxidative desulfurization (UAOD) is an innovative technology for sulfur removal in order to avoid the environmental hazards associated with the combustion of sulfur compounds in raw diesel oil. In this study, diesel oil is treated through UAOD. The effects of ultrasound time (6-30 min), amplitude (20-60%), phase transfer agent (100-500mg), catalyst dosage (10-500mg), H2O2 concentration (30-50%v/v), organic to aqueous phase (OP:AP) ratio (50:50-90:10) and reaction temperature (30-70℃) were examined. The screening analysis used is the definitive screening design that statistically determines the parameters that have a significant effect on the oxidation of diesel oil. Results indicate that significant factors (p-value < 0.5) where ultrasound time, amplitude, catalyst dosage and reaction temperature; while the phase transfer agent, H2O2 concentration and OP:AP ratio were insignificant (p-value > 0.5) on the response of sulfur conversion in the untreated diesel oil. This study concludes that the essential factors to achieve deep desulfurization in diesel oil include ultrasound time, amplitude, H2O2 concentration and reaction temperature which are key factors in the oxidation of sulfur compounds to achieve low sulfur containing diesel oil.

Ultrasound Assisted Oxidative Desulfurization: A Definitive Screening Design Analysis

( Angelo Earvin Sy Choi ),( Susan Roces ),( Nathaniel Dugos ),( Meng-wei Wan ),( Hung-suck Park ) 한국폐기물자원순환학회(구 한국폐기물학회) 2016 한국폐기물자원순환학회 추계학술발표논문집 Vol.2016 No.-

The desulfurization of untreated petroleum oil is required in order to comply with stringent environmental regulations. Ultrasound-assisted oxidative desulfurization (UAOD) is an innovative technology for sulfur removal in order to avoid the environmental hazards associated with the combustion of sulfur compounds in raw diesel oil. In this study, diesel oil is treated through UAOD. The effects of ultrasound time (6-30 min), amplitude (20-60%), phase transfer agent (100-500mg), catalyst dosage (10-500mg), H₂O₂ concentration (30-50%v/v), organic to aqueous phase (OP:AP) ratio (50:50-90:10) and reaction temperature (30-70℃) were examined. The screening analysis used is the definitive screening design that statistically determines the parameters that have a significant effect on the oxidation of diesel oil. Results indicate that significant factors (p-value < 0.5) where ultrasound time, amplitude, catalyst dosage and reaction temperature; while the phase transfer agent, H₂O₂ concentration and OP:AP ratio were insignificant (p-value > 0.5) on the response of sulfur conversion in the untreated diesel oil. This study concludes that the essential factors to achieve deep desulfurization in diesel oil include ultrasound time, amplitude, H₂O₂ concentration and reaction temperature which are key factors in the oxidation of sulfur compounds to achieve low sulfur containing diesel oil.

Fracture mechanics analysis approach to assess structural integrity of the first confinement boundaries in ITER Generic Upper Port Plug structure

Guirao, Julio,Iglesias, Silvia,Vacas, Christian,Udintsev, Victor,Pak, Sunil,Maquet, Philippe,Rodriguez, Eduardo,Roces, Jorge Elsevier 2015 Fusion engineering and design Vol.98 No.-

<P><B>Abstract</B></P> <P>This paper demonstrates structural integrity of the first confinement boundary in Generic Upper Port Plug structures against cracking during service. This constitutes part of the justification to demonstrate that the non-aggression to the confinement barrier requirement may be compatible with the absent of a specific in-service inspections (ISI) program in the trapezoidal section. Since the component will be subjected to 100% volumetric inspections it can be assumed that no defects below the threshold of applied Nondestructive Evaluation techniques will be present before its commissioning. Cracks during service would be associated to defects under Code acceptance limit. This limit can be reasonably taken as 2mm. Using elastic–plastic fracture mechanics an initial defect is postulated at the worst location in terms of probability and impact on the confinement boundary. Its evolution is simulated through finite element analysis and final dimension at the end of service is estimated. Applying the procedures in RCC-MR 2007 (App-16) the stability of the crack is assessed. As relative high safety margin was achieved, a complementary assessment postulating an initial defect of 6mm was also conducted. New margin calculated provides a more robust design.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A parametric submodel of the spot under study is developed. </LI> <LI> The associated macro has the capability to successively re-build the submodel implementing the crack with the geometry of the updated crack front as a function of the predicted increments of length in the apexes of the crack from the calculated stress intensity factor at the crack front. </LI> <LI> The analysis incorporates the crack behavior model to predict the evolution of the postulated defect under the application of the different transients. </LI> <LI> The analysis is based on the Elasto-Plastic Fracture Mechanics (EPFM) theory to account for the ductility of the materials (316LN type stainless steel). </LI> </UL> </P>

The choice of dynamic amplification factors for the ITER generic port plugs during disruptions

Vacas, Christian,Rodriguez, Eduardo,Guirao, Julio,Iglesias, Silvia,Udintsev, Victor,Pak, Sunil,Maquet, Philippe,Roces, Jorge,Casal, Natalia Elsevier 2015 Fusion engineering and design Vol.98 No.-

<P><B>Abstract</B></P> <P>The purpose of this paper is present an overview of the methodology followed to calculate the dynamic amplification factors applied to the electromagnetic loads acting in the ITER generic port plugs.</P> <P>The methodology used for combining an EM transient event with another kind of load is based in the treated of this dynamic EM event as a static load. As first stage a transient dynamic analysis was performed, at the most demanded electromagnetic event [2], to determine the dynamic response of the port plugs. In the same way, have been solved all the time steps of the dynamic event as static loads, it means that the inertial effect has been neglected. The response of each time-step at the dynamic solution has been compared with the same time-step solved as a static load. For this purpose some control points were positioned along the structure at the most representative locations. The key of these calculations is the understanding of the deformed modes affecting the port plug in order to obtain a reasonable dynamic amplification factors that permit the characterization of these loads in a realistic way and does not derive in a too conservative approach. Additionally, the fundamental frequencies and vibration modes of the generic port plug, requested for the characterization of the damping effects at the structure, were calculated in a complementary modal analysis performed for this aim.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Dynamic amplification factor is largely influenced by the DFWs geometry and for the type of bond between DFW and DSM. </LI> <LI> DAF were calculated by analyzing the deformed shape and not just looking at the absolute values of displacements. </LI> <LI> Detailed transient time history non-linear analysis of an MDUP II electro magnetic event has been carried out. </LI> <LI> Cuasi-constant damping ratio of 3% has been considered using a generalized proportional damping model. </LI> </UL> </P>