Fault diagnosis scheme for open-circuit faults in switched reluctance motor drives using fast Fourier transform algorithm with bus current detection

Reliability of power converters is of crucial importance in switched reluctance motor drives used for safety-critical applications. Open-circuit faults in power converters will cause the motor to run in unbalanced states, and if left untreated, they will lead to damage to the motor and power modules, and even cause a catastrophic failure of the whole drive system. This study is focused on using a single current sensor to detect open-circuit faults accurately. An asymmetrical half-bridge converter is considered in this study and the faults of single-phase open and two-phase open are analysed. Three different bus positions are defined. On the basis of a fast Fourier transform algorithm with Blackman window interpolation, the bus current spectrums before and after open-circuit faults are analysed in details. Their fault characteristics are extracted accurately by the normalisations of the phase fundamental frequency component and double phase fundamental frequency component, and the fault characteristics of the three bus detection schemes are also compared. The open-circuit faults can be located by finding the relationship between the bus current and rotor position. The effectiveness of the proposed diagnosis method is validated by the simulation results and experimental tests.

Civilizing the tropics: The highlanders' failed attempt to transform the Colombian Amazon, 1850--1930

The subject of this dissertation is the nature of the environmental transformations, both symbolic and physical, that took place in Colombia between 1850 and 1930. This period begins with the attempt by the Colombian elite to leave behind colonial ties, overcome economic disorganization, and link Colombia to the international market. These efforts were part of a general project to “civilize” this tropical country. The period closes with the transition toward an industrialization and urbanization process led by the Colombian state during the 1930s. ^ Frequently, environmental studies as an academic field are dominated by biological concerns. However, most environmental thinking accepts their interdisciplinary nature. Under this framework not only spatial but also symbolic concerns are key elements in understanding environmental transformations. ^ This study finds that despite several attempts to transform the Colombian landscape physically, most of the substantive changes were localized and circumscribed to the Andean region. Other changes were mainly symbolic. This dissertation thus uses the Amazon as one of several regions that did not experience significant changes in the forest canopy. While highlanders originally dreamed of the Amazon as an untapped El Dorado, their failed attempts to exploit the region caused them to imagine it as a nightmarish “green hell”. ^ This dissertation concentrates on three pairs of concepts: tropicality/civilization, landscape/territory, and symbolic/material changes. It presents both a general vision of Colombia and case studies of three regions: Cundinamarca, and Cauca Valley are used to compare with the Amazon region that is developed at length. Whereas mainstream Colombian histories have either fixated on the Andean highlands or, in a relegated second place, on the Caribbean region, this dissertation attempts to significantly contribute to the historiography of Colombia by focusing on the largely neglected Amazonian region. ^ To understand imageries about Colombia's landscape, the dissertation relies on travel writings, chorographic descriptions and maps. It also makes uses legal documents and other published primary sources, including literary pieces and memoirs. ^

Adio Kerida (Goodbye Dear Love) , Film Screening and Discussion with Director and Author Ruth Behar

This flyer promotes the event "Adio Kerida (Goodbye Dear Love) Film Screening and Discussion with Director and Author Ruth Behar" hosted by the Cuban Research Institute.

Okay Cool No Smoking Love Pony

This poetry collection moves from the narrator’s childhood in the marshes of Canada to her coming of age in a new, southern swamp in South Florida. Many of the poems use free verse as well as fairly recent poetic forms like the Golden Shovel and the Pecha Kucha. Others rely on wordplay and nonce forms. Influenced by Hector Veil Temperly, Matthew Zapruder, Dorothea Lasky, Laura Kasischke and Anne Carson, the poems often employ simple language in stream of consciousness, and oscillate between lyric and narrative. These poems are feverish creations inspired by the oracular tradition and induced by the psychic crush of modern life: depression of the body and mind, cultural paranoia, and the decline of nature. The reader is privy not only to the personal biography of the narrator, but also to the inner workings of the narrator’s mind as it encounters and interprets the world.

Love comes in at the eye

LOVE COMES IN AT THE EYE relates the story of Marshall Craig, a Midwesterner transplanted to South Florida who turns 35 in the course of the book. Marshall is an assistant curator for a Miami art museum, a man who has been obsessed with--as he calls it--a greed for seeing from a young age. His fascination with the surface of appearance of things is exacerbated by his precocious studies in art and its histories. Marshall views himself as marked by his red hair and freckled skin, as someone whose chances of attracting a partner into a meaningful relationship have been diminished by his looks. He is colored by his image of himself as unattractive and most importantly, convinced that his romantic life would be more successful, more vibrant, if he'd been graced with the face and figure of, say, a Velazquez. When Marshall meets a Cuban-born man from Atlanta, he is transfixed by the conviction that this is the man the universe has selected for him. The thrust of the story goes beyond boy-meets/loses/gets-boy to an exploration of said boy coming to terms with his definition of self. In a pivotal span of six months, the book explores Marshall's obsessions with seeing and how they define his vision of reality, the emphasis placed on beauty in gay culture, the tentative beginnings of a relationship as it takes root and grows, and finally, the inexplicable, magical forces that direct our romantic destinies.

Touch of AIDS : A love story

Touch of AIDS: A Love Story is a memoir covering the ten years since my husband, Steven's HIV positive diagnosis in 1987. The story begins when we find our circumstances redefined and our future challenged by the plague of this century. Steven's inability to withstand the toxic effects of the earliest approved antiviral drugs leads us to turn to alternative therapies. After his conversion to AIDS we return to Western medicine but continue on a quest that takes us from Taoist studies at home in Florida to sacred Navajo ceremonies in Arizona. As Steven finds that healing comes in great part from the journey itself and that he is stronger physically, emotionally and spiritually than he was before his HIV diagnosis, I realize that we can live with fear as long as we don't become its victims. Love and hope empower our lives as we live with AIDS.

Questionamentos acerca de valores axiológicos no turismo: uma abordagem fenomenológica hermenêutica

The study presents the possibility of interpretation of axiological values of tourism as a practice conceived on a human being or Dasein as being-in-the-world of tourism. The value, as an object of Axiology, was considered the predictor of the human being conduct in the phenomenon reflecting this same value in tourism. The aim was to comprehend and interpret through the way of being of Dasein in tourism, which axiological values are chosen to the practice of tourism and the intentional feelings directed to these values. A phenomenological hermeneutics research with exploratory characteristics was accomplished in order to survey the values. Ten episodic interviews were conducted from the hermeneutic situation - constituted by fore-having, fore-sight and fore-conception of each Dasein interviewed, by adopting a sympathetic conduct and sympathy of Max Scheler and the use of emotional intuition to capture the intentional feelings, interpreted afterwards by the analysis of a Martin Heidegger's phenomenology in Being and Time. The results showed that, even without categorisation, the totality of the living experiences, the way of being of positive values outnumber the negatives ones in the existence of each Dasein, leading them to the Learning, which are comprising: experiences to provide self-knowledge, historical-cultural values, and memory as part of the learning experiences, hospitality as a way of openness and socio-cultural exchange, solidarity and peace. Intentional feelings directed at the values for the choice for practicing tourism were: love, happiness, pleasure, respect and trust. Four evidences were found concerning the use of sentimental perspective and intentional feeling of Scheler and regarding the logic of the heart of Pascal used by this author. The sociocultural interrelationships and exchanges form the basis for developing tourism as phenomenon. Therefore the character being-with or Mitsein is prevalent in tourism activities. Despite the learning was the purpose of the experiences, the ultimate goal was the improvement and personal enrichment of Dasein´s humanity development. The study also showed the hermeneutic phenomenological seeing opens the access of the living experiences of values, without making arbitrarily judgment and achieve "to the thing themselves", which, by the overlapping of categories, dispositions and intentional feelings, form the evaluative experiences and are possible to access through the fundamental ontology of Heidegger. The study contributes to broaden the vision concerning to the totality of tourism and the practitioners Dasein of it. As possibilities for deepening studies, was pointed out: the total person of Scheler; the care or Sorge as a form of love in Heidegger; happiness and pleasure in the practice of tourism and human flourishing or eudaimonia.

Annotated record of the detailed examination of Mn deposits from COCOTOW Expedition stations in the intersection of the Siqueiros Transform Fault and the East Pacific Rise

A near-bottom geological and geophysical survey was conducted at the western intersection of the Siqueiros Transform Fault and the East Pacific Rise. Transform-fault shear appears to distort the east flank of the rise crest in an area north of the fracture zone. In ward-facing scarps trend 335° and do not parallel the regional axis of spreading. Small-scale scarps reveal a hummocky bathymetry. The center of spreading is not a central peak but rather a 20-40 m deep, 1 km wide valley superimposed upon an 8 km wide ridge-crest horst. Small-scale topography indicates widespread volcanic flows within the valley. Two 0.75 km wide blocks flank the central valley. Fault scarps are more dominant on the western flank. Their alignment shifts from directions intermediate to parallel to the regional axis of spreading (355°). A median ridge within the fracture zone has a fault-block topography similar to that of the East Pacific Rise to the north. Dominant eastward-facing scarps trending 335° are on the west flank. A central depression, 1 km wide and 30 m deep, separates the dominantly fault-block regime of the west from the smoother topography of the east flank. This ridge originated by uplift due to faulting as well as by volcanism. Detailed mapping was concentrated in a perched basin (Dante's Hole) at the intersection of the rise crest and the fracture zone. Structural features suggest that Dante's Hole is an area subject to extreme shear and tensional drag resulting from transition between non-rigid and rigid crustal behavior. Normal E-W crustal spreading is probably taking place well within the northern confines of the basin. Possible residual spreading of this isolated rise crest coupled with shear drag within the transform fault could explain the structural isolation of Dante's Hole from the remainder of the Siqueiros Transform Fault.

Identification of unusual events in multi-channel bridge monitoring data using wavelet transform and outlier analysis

Peer reviewed

Flo Kennedy and Barbara Love at NOW conference, Atlantic City

General note: Title and date provided by Bettye Lane.

Barbara Love, co-author of "Sappho was a Right on Woman"

General note: Title and date provided by Bettye Lane.

Writer Shere Hite, author of "Hite Report" and new book "Women and Love"

General note: Title and date provided by Bettye Lane.

Writer Shere Hite, author of "Hite Report" and new book "Women and Love"

General note: Title and date provided by Bettye Lane.

Writer Shere Hite, author of "Hite Report" and new book "Women and Love"

General note: Title and date provided by Bettye Lane.