نتایج جستجو برای: synthesis

تعداد نتایج: 409246  

2013
Taehyeong Kim Bum-Jin Park

This study is aimed at developing view synthesis system for closed sections such as Tunnel, Bridge etc. to monitor and track the vehicle movement. For this purpose, video storage and synthesis systems were developed and demonstrated, making use of the video taken and stored in 4 web cameras. Consequently original technology has been secured but for commercialization, application to the sites wi...

1998
Jennifer J. Venditti Jan P. H. van Santen

Accurate estimation of segmental durations is crucial for naturalsounding text-to-speech (TTS) synthesis. This paper presents a model of segmental duration used in the Bell Labs Japanese TTS system. We describe the constraints on vowel devoicing, and effects of factors such as phone identity, surrounding phone identities, accentuation, syllabic structure, and phrasal position on the duration of...

Journal: :Computer Speech & Language 1997
Bernd Möbius Richard Sproat Jan P. H. van Santen Joseph P. Olive

In this paper we present an overview of the German version of the Bell Labs text-to-speech system, a high-quality concatenative synthesis system with extensive text analysis capabilities. We discuss problems of text analysis, and our solutions to these problems, including: the integration of text normalization tasks into linguistic text analysis; the capability to morphologically analyze compou...

2000
Johan Wouters Michael W. Macon

An important problem in concatenative synthesis is the occurence of spectral discontinuities or “concatenation mismatch” between sonorant speech units. In this paper, we present an approach to reduce concatenation mismatch by combining spectral information from two sequences of speech units selected in parallel. Concatenation units, on one hand, define initial spectral trajectories for a target...

2012
NAVJEET KAUR

Solidphase organic synthesis is a rapidly expanding area of synthetic chemistry which is being widely exploited in the search for new medicinally important compounds by combinatorial techniques. In recent decades, a large number of reports related to solidphase synthesis of heterocycles have appeared owing to a wide variety of their biological activity. In this review, we report the important r...

Journal: :iranian journal of pharmaceutical research 0
alireza aliabadi department of medicinal chemsitry, faculty of pharmacy, kermanshah university of medical sciences ahmad mohammadi-farani department of pharmacology, toxicology and medical services, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, iran samira soltani darbandi students research committee, kermanshah university of medical sciences, kermanshah, iran

patients with alzheimer's disease have cognitive deficits, impaired long-term potentiation and learning and memory. a progressive reduction in cholinergic neurons in some areas of the brain such as cortex and hippocampus is related to the deficits in memory and cognitive function in alzheimer’s disease (ad). in the current project a new series of phthalimide derivatives were synthesized. p...

Journal: :iranian chemical communication 2016
alireza banaei soheyla karimi somayeh minaei eslam pourbasheer

in this paper, new (2e, 2'e)-3, 3'-(((3- hydroxypropane-1, 2-diyl) bis (oxy)) bis (2, 1-phenylene)) bis (1-phenylprop-2-en-1-one) (2a) was prepared in good yield by condensation reaction of acetophenone with bisaldehyde (1a) in ethanolic naoh solutions at room temperature. the (2e, 2'e)-3, 3'-(((3- hydroxypropane-1, 2-diyl) bis (oxy)) bis (2, 1-phenylene)) bis (1-phenylprop-2-en-1-one) (2a) was...

1994
Gitanjali M. Swamy Sriram Rajamani Chris Lennard Robert K. Brayton

Most problems in logic synthesis are computationallyhard, and are solved using heuristics. This often makes algorithms un-stable; if the input is changed slightly, the new result of synthesis can be significantly different. A designer can spend much effort hand-optimizing a circuit, so it is desirable to retain as much of this human insight as possible. This motivates the need for incremental s...

Journal: :medical journal of islamic republic of iran 0
bahram goliaei from the institute of biochemistry and biophysics, university of tehran, tehran, i.r. iran. maryam taheri azra rabbani

the production of colony-stimulating factors (csf) is delicately controlled through a complex network of humoral and environmental factors. we have studied some of the mechanisms which regulate the production of csf as compared to general protein synthesis in the lung tissue ill vitro. when lung tissue from mice was cultured for various times in serum free medium, the first detectable level of ...

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