1,724,268 research outputs found
sj-docx-1-pie-10.1177_09544089231175090 - Supplemental material for Experimental analysis of thermal performance factor for double pipe heat exchanger with ZnO–water nanofluid
No full textSupplemental material, sj-docx-1-pie-10.1177_09544089231175090 for Experimental analysis of thermal performance factor for double pipe heat exchanger with ZnO–water nanofluid by Bhrant Kumar Dandoutiya and Arvind Kumar in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
Fluorinated Styrene-Based Monomers for Cyclopolymerizations
No full textThe synthesis of versatile fluorine compounds and monomers for conducting polymer research and cyclopolymerizations is presented. Semiprotected 2,3,5,6-tetrafluoroterephthaldehyde 1 could be elaborated through Wittig olefination chemistry, deprotection and reduction to the previously unknown 4-vinyl-2,3,5,6-tetrafluorobenzylalcohol 8 in good yields. Compound 8 can be reacted to form the malonate ester, and then alkylation on the malonate moiety in mild conditions affords difunctional monomer 3. Through sequential esterifications on the malonate moiety, and subsequent alkylation, compound 4, a difunctional monomer for cyclopolymerization bearing one styrene and one perfluoroaryl styrene moiety, has been obtained. Preliminary experiments show that it is possible to cyclopolymerize 4 under free radical conditions
Brassica Oilseeds: breeding and management/ edited by Arvind Kumar, S.S. Banga, P.D. Meena, P.R. Kumar.
No full textIncludes bibliographical references and index.This book contains 12 chapters focusing on the breeding aspects, i.e. genetics and breeding, intersubgenomic heterosis, induced mutagenesis and allele mining, seed quality modifications and genomics, and the management of diseases, such as Albugo candida and Alternaria species, insect pests and abiotic stresses, in rapeseed-mustard.Importance and origin / Arvind Kumar, P.A. Salisbury, A.M. Gurung and M.J. Barbetti -- Genetics and breeding / Shashi Banga, P.R. Kumar, Dhiraj Singh, Ram Bhajan and S.S. Banga -- Intersubgenomic heterosis : brassica napus as an example / Donghui Fu and Meili Xiao -- Induced mutagenesis and allele mining / Sanjay J. Jambhulkar -- Seed quality modifications in oilseed brassica / Abha Agnihotri -- Genomics / Venkatesh Bollina, Yogendra Khedikar, Wayne E. Clarke and Isobel A.P. Parkin -- Diseases / C. Chattopadhyay and S.J. Kolte -- Albogo candida / P.R. Verma, G.S. Saharan and P.D. Meena -- Pathogenesis of alternaria species : physiological, biochemical and molecular characterization / P.D. Meena, Gohar Taj and C. Chattopadhyay -- Plant disease resistance genes : insights and concepts for durable disease resistance / Lisong Ma and M. Hossein Borhan -- Insect-pests / Sarwan Kumar and Y.P. Singh -- Abiotic stresses with emphasis on brassica juncea / D.K. Sharma, D. Kumar and P.C. Sharma.1 online resource (xvii, 261 pages)
Mild Preparation of Functionalized [2.2]Paracyclophanes via the Pummerer Rearrangement
No full text[2.2]Paracyclophanes, incorporating functional groups in
the aliphatic bridges, suitable for elimination to give
[2.2]paracyclophanedienes, are synthesized through a novel
approach. It relies on a double Pummerer rearrangement on
dithiacyclophane precursors, followed by ring contraction
through a photochemical sulfur extrusion, and it is compatible
with aryl moieties possessing very different electronic
properties
sj-docx-1-jpx-10.1177_23743735221117358 - Supplemental material for Prevalence of Long COVID-19 and its Impact on Quality of Life Among Outpatients With Mild COVID-19 Disease at Tertiary Care Center in North India
No full textSupplemental material, sj-docx-1-jpx-10.1177_23743735221117358 for Prevalence of Long COVID-19 and its Impact on Quality of Life Among Outpatients With Mild COVID-19 Disease at Tertiary Care Center in North India by Radhika Sarda, Arvind Kumar, Ankit Chandra, Megha Bir, Sanchit Kumar, Manish Soneja, Sanjeev Sinha and Naveet Wig in Journal of Patient Experience</p
Nanostructuring with chirality: binaphthyl-based synthons for the production of functional oriented nanomaterials
No full textChirality is a powerful tool for the generation of order, directionality, and, as such, of function, in assembled nanoscale chemical devices. Axially chiral binaphthyls have been widely used in organic synthesis; the stability of the enantiomers enables their use as robust chirality inducers and catalysts in asymmetric reactions, and they are nowadays industrially applied in a variety of organic transformations. Applications of these compounds in the field of nanosciences are more recent, and not yet fully explored. The integration of such a robust class of chiral compounds, capable of efficient transfer of stereochemical information, into functional aggregates and nanoarchitectures is of great current interest. We will discuss preeminent examples of applications of these synthons in several fields of nanoscience, such as reticular chemistry, non-linear optical materials and imaging, and liquid crystals
Controlled RAFT Cyclopolymerization of Oriented Styrenic Difunctional Monomers
No full textWe describe the first example of controlled free radical cyclopolymerization of difunctional styrenic monomers. The newly designed monomers are obtained from the introduction of two 4-vinylbenzyl moieties as malonate or dialkylated malonate esters. The more sterically hindered monomer is particularly efficient in the cyclization and propagation processes, giving cyclopolymers, in diluted solvent conditions, in good yields and degrees of polymerization. In the presence of a suitable RAFT mediator, and, upon careful optimization of the solvent, temperature and monomer concentration, linear increase of number average molecular weight with conversion and low polydisperisity indexes can be achieved
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No full textPossibilities and Suggestion for farming Dalhani crops by Principal Scientist, Arvind Kumar SInghNot AvailableNot Availabl
Craniometric and Morphometric Characterization of Ouled Djellal Algerian White Arab Sheep
No full textInternational audienceBackground: In zooarchaeology, reference collections are essential for identifying skeletal remains and for predicting measurements of living animals. To date, the archaeozoological studies in Algeria are still limited and morphometric reference datasets of local breeds are yet to be established. This study aimed to reveal the correlations between measurements of living animals and their skulls.Methods: A total of 30 females of the Ouled Djellal Algerian White Arab breed were analyzed: 15 adults and 15 young adults. Eight external body measurements were taken before slaughter and the live weight was estimated. After slaughter, the heads were collected, meticulously cleaned, weighed and measured. Sixteen craniometric measurements were taken and two indices were calculated.Result: The differences between the mean values of young adults and adults were not statistically significant (p>0.05), except for wither height, naso-dental oblique length (CL31), greatest palatal breadth (CB14), greatest breadth across the premaxillae (CB18) and least height of the occipital (CH5). Young adults have a higher neurocranium and are more massive, whereas adults have a wider viscerocranium. Correlations between cranial and external measurements were partially significant, predominantly in adults. The strongest correlation was observed between the thoracic perimeter and condylobasal length (p<0.0001). These results provide a new reference dataset for archaeozoology
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