Search results for "SLI"
showing 10 items of 1729 documents
Robust Active Disturbance Rejection Control of Induction Motor Systems Based on Additional Sliding-Mode Component
2017
This paper deals with motion control systems with induction motor, subject to severe requirements on both dynamics and steady-state behavior. The proposed control methodology could be viewed as an advancement of the standard field oriented control. It consists of two control loops, i.e., the rotor flux and the speed control loops, designed using the active disturbance rejection control method, with the aim to cope with both exogenous and endogenous disturbances, which are estimated by means of two linear extended state observers and then compensated. Moreover, with the aim of achieving total robustness, a sliding-mode based component is designed, in order to take into account disturbance es…
Size measuring techniques as tool to monitor pea proteins intramolecular crosslinking by transglutaminase treatment
2015
International audience; In this work, techniques for monitoring the intramolecular transglutaminase cross-links of pea proteins, based on protein size determination, were developed. Sodium dodecyl sulfate polyacrylamide gel electrophoresis profiles of transglutaminase-treated low concentration (0.01% w/w) pea albumin samples, compared to the untreated one (control), showed a higher electrophoretic migration of the major albumin fraction band (26 kDa), reflecting a decrease in protein size. This protein size decrease was confirmed, after DEAE column purification, by dynamic light scattering (DLS) where the hydrodynamic radius of treated samples appears to be reduced compared to the control o…
“Things which don’t shift and grow are dead things”: Revisiting Betonie’s Waste-Lands in Leslie Silko’s Ceremony
2014
This article explores the socio-political background that led to widespread Native American urban relocation in the period following World War II – a historical episode which is featured in Leslie Marmon Silko’s acclaimed novel Ceremony (1977). Through an analysis of the recycling, reinterpreting practices carried out by one of Ceremony’s memorable supporting characters, Navajo healer Betonie, Silko’s political aim to interrogate the state of things and to re-value Native traditions in a context of ongoing relations of coloniality is made most clear. In Silko’s novel, Betonie acts as an organic intellectual who is able to identify and challenge the 1950s neocolonial structure that forced Na…
The role of community-based knowledge and local institutions in managing landslides on the slopes of Mount Elgon, Uganda
2015
The paper explores the degree to which community-based knowledge (CBK) and local institutions can be effective for disaster preparedness and management, based on a study carried out in Nametsi Parish, located on the slopes of Mount Elgon, in eastern Uganda. The study area has experienced innumerable landslides since 1933. Whereas a few of the landslides have not been disastrous, several others have had far-reaching effects on the livelihoods of people living in the area. This is attributed partly to the geographical setting, which makes the area difficult to access, and partly to socio-economic factors such as a high population growth rate and widespread poverty. Despite these aspects of vu…
How communities' perceptions of disasters influence disaster response: managing landslides on Mount Elgon, Uganda
2014
The aim of this paper is to assess the role of people's perception in disaster management. It is based on a study carried out along the slopes of Mount Elgon in Eastern Uganda. People living in the study area have experienced a number of landslides, but the landslide in 2010 had the most far-reaching effects on community livelihoods and resulted in a major setback to development efforts in the area. Experiences of landslides have enabled the local people to develop a number of interpretations of the causes and effects of the phenomena. The study revealed that community members did not share uniform perceptions. Whereas some members advanced technical or physical explanations for the 2010 di…
The therapeutic modulation of atherogenic dyslipidemia and inflammatory markers in the metabolic syndrome: what is the clinical relevance?
2008
The metabolic syndrome consists of a constellation of clinical and biochemical risk factors that cluster together and heighten the risk for atherogenesis, cardiovascular diseases, and diabetes. Established risk cardiovascular factors like hypertension, atherogenic dyslipidaemia, and glucose intolerance occur in the setting of insulin resistance and central adiposity, with genetic and environmental influences modulating the ultimate risk. Chronic insults to the endothelium take its toll in the form of silent as well as clinically evident cardiovascular events. The cellular and vascular accompaniments have shed some light into the underlying pathophysiology. Heightened, low-grade inflammatory…
TERRE project: interplay between unsaturated soil mechanics and low-carbon geotechnical engineering
2020
The geotechnical construction industry is a major component of the overall construction sector and is strategically important in infrastructure development (transportation, flood and landslide protection, building foundations, waste disposal). Although industry and research in the overall construction sector have been investing significantly in recent years to produce innovative low-carbon technologies, little innovation has been created in geotechnical construction industry, which is lagging behind other construction industry sectors. This paper discusses the interplay between low-carbon geotechnical engineering and unsaturated soil mechanics based on the research carried out within the pr…
An Analytical Tire Model with Flexible Carcass for Combined Slips
2014
Published version of an article in the journal: Mathematical Problems in Engineering. Also available from the publisher at: http://dx.doi.org/10.1155/2014/397538 The tire mechanical characteristics under combined cornering and braking/driving situations have significant effects on vehicle directional controls. The objective of this paper is to present an analytical tire model with flexible carcass for combined slip situations, which can describe tire behavior well and can also be used for studying vehicle dynamics. The tire forces and moments come mainly from the shear stress and sliding friction at the tread-road interface. In order to describe complicated tire characteristics and tire-roa…
The effect of manufacturing tolerances on a tubular linear ferrite motor
2015
This study presents a numerical and experimental study on the effect of permanent magnet tolerances on the performances of a Tubular Linear Ferrite Motor. The statistical distribution of the magnetic characteristic of a set of commercial magnets is obtained experimentally while the performances of a the tubular motor are numerically evaluated. The performances that have been considered are: cogging force, end effect force and generated thrust. It has been shown that: 1)the statistical variability of the magnets modifies the time behavior of the cogging force; 2)the value of both the end effect cogging force and the generated thrust are directly linked to the values of then remanence field o…
Conclusion: Hospitality in the New Millennium
2017
The main thesis held here is that Western civilization has subscribed to a medical / surgical metaphor, which consists in extirpating the affected part to save the body. If this is applied in the case of terrorism, the Muslim community runs serious risk of being demonized and martyrized in the name of security.