Results 61 to 70 of about 4,335 (221)

Synthesis and Evaluation of the Photochemical Properties of Heterocyclic Hemiindigos

open access: yesChemistry – A European Journal, Accepted Article.
This study reports a series of novel heterocyclic hemiindigos (Het‐HI) synthesised via the condensation of indoxyl acetate with various heteroaromatic aldehydes. The influence of electron‐rich and electron‐poor heterocycles on the photochemical and photophysical properties of these compounds have been investigated.
Ludovic Jean   +6 more
wiley   +1 more source

The Meijer transformation of generalized functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
This paper extends the Meijer transformation, Mμ, given by (Mμf)(p)=2pΓ(1+μ)∫0∞f(t)(pt)μ/2Kμ(2pt)dt, where f belongs to an appropriate function space, μ ϵ (−1,∞) and Kμ is the modified Bessel function of third kind of order μ, to certain generalized ...
E. L. Koh, E. Y. Deeba, M. A. Ali
doaj   +1 more source

Eco‐Friendly and Ready‐To‐Market Polyurethanes: A Design of Experiment‐Guided Substitution of Toxic Catalyst and Fossil‐Based Isocyanate

open access: yesChemSusChem, EarlyView.
Increasing bio‐based and circular components in polyurethane formulation up to 65 %w/w maintaining the market acceptability through multivariate analysis approach Abstract In this contribution, we tackle the replacement of the Hg‐based catalyst and fossil‐derived isocyanate precursors toward the formulation of a more sustainable polyurethane ...
Gabriele Viada   +5 more
wiley   +1 more source

Bulletin Madison College, January, 1968 [PDF]

open access: yes, 1968
Published by Madison College 1938-1977. Includes General catalog, Graduate catalog, summer schedule, etc.
Madison College (Harrisonburg, Va.)
core   +6 more sources

Development of Mathematics Anxiety Scale: Factor Analysis as a Determinant of Subcategories

open access: yesJournal of Pedagogical Research, 2018
The purpose of this study was to develop an instrument for measuring students’ mathematics anxiety scale (MAS) with high psychometric property. A survey research design was used involving 510 students randomly selected from secondary schools. Exploratory
Yusuf Feyisara Zakariya
doaj  

HIV-related knowledge and perceptions by academic major: Implications for university interventions

open access: yesFrontiers in Public Health, 2014
Most universities offer human sexuality courses, although they are not required for graduation. While students in health-related majors may receive sexuality education in formal settings, majority of college students never receive formal sexual health ...
Matthew Lee Smith   +4 more
doaj   +1 more source

1987 - 1989, Gardner-Webb College Graduate Academic Catalog [PDF]

open access: yes, 1987
1987 - 1989, Gardner-Webb College Graduate Academic Catalog. M. Christopher White, president.https://digitalcommons.gardner-webb.edu/graduate-academic-catalogs/1023/thumbnail ...
Gardner-Webb College,
core   +1 more source

Real‐Time Implementation of Unknown Input Observer‐Based State and Unknown Disturbance Estimation for Series Active Filters

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
For the series active filter (SAF), a combined controller and observer scheme is proposed. Two controllers—state feedback (SFB) and linear quadratic regulator (LQR)—along with state observers, including the Luenberger observer (LO), proportional–integral observer (PIO), and unknown input observer (UIO), have been designed.
Nagulapati Kiran, I. E. S. Naidu
wiley   +1 more source

Renewable Energy Promotion Instruments Used by Innovation Brokers in a Technology Transfer Network. Case Study of the Enterprise Europe Network

open access: yesEnergies, 2020
Stable and sustainable economic development—including that of renewable energy resources (RES)—requires institutional support of an environment that would enable market operations, and support them in case they are ineffective.
Zofia Gródek-Szostak   +5 more
doaj   +1 more source

A brief report on the New Classification Scheme for Chinese Libraries [PDF]

open access: yes, 2015
The report takes a brief look into Lai Yung-Hsiang's New Classification Scheme for Chinese Libraries. I will start by giving a short account of its histories and context followed by its current status and use, as well as a description of its basic ...
Gordon Edison McQueen
core   +1 more source

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