1,895,875 research outputs found
Control and Filtering for Discrete Linear Repetitive Processes with H infty and ell 2--ell infty Performance
No full textRepetitive processes are characterized by a series of sweeps, termed passes, through a set of dynamics defined over a finite duration known as the pass length. On each pass an output, termed the pass profile, is produced which acts as a forcing function on, and hence contributes to, the dynamics of the next pass profile. This can lead to oscillations which increase in amplitude in the pass to pass direction and cannot be controlled by standard control laws. Here we give new results on the design of physically based control laws for the sub-class of so-called discrete linear repetitive processes which arise in applications areas such as iterative learning control. The main contribution is to show how control law design can be undertaken within the framework of a general robust filtering problem with guaranteed levels of performance. In particular, we develop algorithms for the design of an H? and dynamic output feedback controller and filter which guarantees that the resulting controlled (filtering error) process, respectively, is stable along the pass and has prescribed disturbance attenuation performance as measured by and – norms
Oral History of Charlie Lam
No full textAn oral history with Charlie Lam, born in 1960 in rural Cambodia, near Sihanoukville. He is a 2nd generation ethnic Chinese, where his grandparents migrated to Cambodia from Hainan, China. When he was 12, he and his family migrated to Kien Giang, Vietnam to live with his aunt. After the fall of Saigon in 1975, he escaped with his aunt’s family by boat and arrived in Thailand. Through family sponsorship, they made their way to Camp Pendleton, San Diego. He discusses his hardship of readjusting to a new life in California as an orphan. After not graduating high school, Charlie was constantly moving around trying to figure out life. Eventually, he started his own bakery business and opened a store in Echo Park, Los Angeles in 1999. He has three children and lives in Echo Park, California with his wife.Recorded digitall
Joshua Lam
No full textomo.yomo AKA Joshua Lam (he/him) is an emerging filmmaker from Vancouver, located on the unceded territories of the Squamish, Tsleil-Waututh, and Musqueam Nations. Joshua specializes in directing, producing, and creative writing; he experiments with storytelling through multimedia projects that blend themes of cultural tradition and identity with a zest of humour
Clinical Utility of a Commercial LAM-ELISA Assay for TB Diagnosis in HIV-Infected Patients Using Urine and Sputum Samples
No full textBackground: The accurate diagnosis of TB in HIV-infected patients, particularly with advanced immunosuppression, is difficult. Recent studies indicate that a lipoarabinomannan (LAM) assay (Clearview-TB (R)-ELISA) may have some utility for the diagnosis of TB in HIV-infected patients; however, the precise subgroup that may benefit from this technology requires clarification. The utility of LAM in sputum samples has, hitherto, not been evaluated.Methods: LAM was measured in sputum and urine samples obtained from 500 consecutively recruited ambulant patients, with suspected TB, from 2 primary care clinics in South Africa. Culture positivity for M. tuberculosis was used as the reference standard for TB diagnosis.Results: Of 440 evaluable patients 120/387 (31%) were HIV-infected. Urine-LAM positivity was associated with HIV positivity (p = 0.007) and test sensitivity, although low, was significantly higher in HIV-infected compared to uninfected patients (21% versus 6%; p<0.001), and also in HIV-infected participants with a CD4 <200 versus <200 cells/mm(3) (37% versus 0%; p = 0.003). Urine-LAM remained highly specific in all 3 subgroups (95%-100%). 25% of smear-negative but culture-positive HIV-infected patients with a CD4 <200 cells/mm(3) were positive for urine-LAM. Sputum-LAM had good sensitivity (86%) but poor specificity (15%) likely due to test cross-reactivity with several mouth-residing organisms including actinomycetes and nocardia species.Conclusions: These preliminary data indicate that in a high burden primary care setting the diagnostic usefulness of urine-LAM is limited, as a rule-in test, to a specific patient subgroup i.e. smear-negative HIV-infected TB patients with a CD4 count <200 cells/mm(3), who would otherwise have required further investigation. However, even in this group sensitivity was modest. Future and adequately powered studies in a primary care setting should now specifically target patients with suspected TB who have advanced HIV infection
Tiffany Lam Interview
No full textTiffany Lam (Class of 2021) was interviewed by Sarah Khoja via the Zoom internet-based video conferencing software on June 21, 2022. Ms. Lam was born and raised in Plano, Texas. In her interview, she discusses her childhood in Plano, and how her family, while largely Americanized, celebrated Chinese culture in specific ways. She was inspired to apply to SMU after visiting campus several times with her father, who attended SMU to obtain his MBA. While at SMU, she was involved with a variety of student organizations, including the Hilltop Scholars Program, Bellatones (SMU's all-female acapella group), the Statistics Club, Heigi Career Leaders and more. She also talked about how there were few other Asian students in her classes and she only interacted with the Asian community via organized events rather than informally. She graduated from SMU with a degree in Marketing and a minor in Statistics in 2021. At the time of the interview, Ms. Lam was a Marketing Manager at a manufacturing company based out of Carrollton, Texas and kept in contact with her mentors from the Hilltop Scholars Program
A «África» con Aimé Césaire y Wifredo Lam
No full textThe article analyzes the concept of négritude in the poetry of Aimé Césaire, and the cultural relations of Césaire with European and Caribbean intellectuals, especially with the Cuban painter Wifredo Lam, whose artistic and personal friendship lasted over four decades. Based on Césaire’s poem «To Africa,» a poem dedicated to Lam, Arnold analyzes the representation of the African continent in Césaire’s poetic imaginary.El artículo analiza el concepto de negritud en la obra poética de Aimé Césaire y su relación cultural con intelectuales europeos y caribeños, especialmente con el pintor cubano Wifredo Lam, cuya convergencia artística y personal duró más de cuatro décadas. A partir de composiciones de Aimé Césaire como el poema «A África», dedicado a Lam, y su análisis a la luz de cuadros como «La jungla,» Arnold analiza la representación del continente africano en el imaginario poético de Aimé Césaire
Nung narrative - Lake Ba Be
No full textThis item contains an audio recording of a narrative told in Nung (Kra-Dai language spoken in Vietnam) and an annotated transcript of the recording. The narrative is based on the Vietnamese folk story about Lake Ba Be in Bac Kan province of Vietnam. The dataset relates to the publications Lam, E. (2023). "Definiteness of classifier-noun phrases in Nung". Proceedings of TripleAFLA: 9th TripleA workshop for semantic fieldworkers, 29th annual meeting of the Austronesian Formal Linguistics Association, 32-43 and Lam, E. (in press). "Meaning of Classifier-Noun Construction in Nung (Kra-Dai language in Vietnam)". Functions of Language
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