Moisture management properties of eri silk knitted fabrics

Moisture management and wicking properties of eri silk knitted fabrics have been studied. Three different knit structures,namely single jersey, single pique and honeycomb, have been developed with the combination of two different yarn countand tightness level. The fabrics developed are analyzed in terms of wetting time, spreading speed, absorption rate, andmaximum wetting radius, accumulative one way transport index (AOTI) and overall moisture management capacity(OMMC). It is discerned that the variables, such as yarn count, fabric tightness and knitting structure, have a significantinfluence on the wicking and moisture management properties. The OMMC indexes of eri silk knitted fabric are found torange from ‘very good’ to “excellent’ category, which indicates the suitability of eri silk yarn to skin fit as well as activewear applications

Moisture management properties of eri silk knitted fabrics

389-395Moisture management and wicking properties of eri silk knitted fabrics have been studied. Three different knit structures, namely single jersey, single pique and honeycomb, have been developed with the combination of two different yarn count and tightness level. The fabrics developed are analyzed in terms of wetting time, spreading speed, absorption rate, and maximum wetting radius, accumulative one way transport index (AOTI) and overall moisture management capacity (OMMC). It is discerned that the variables, such as yarn count, fabric tightness and knitting structure, have a significant influence on the wicking and moisture management properties. The OMMC indexes of eri silk knitted fabric are found to range from ‘very good’ to “excellent’ category, which indicates the suitability of eri silk yarn to skin fit as well as active wear applications

Provenance variation in growth and genetic potential of Aquilaria malaccensis under nursery condition

Aquilaria malaccensis Lam. is commonly known as Agarwood which is distributed in the Indo-malesian genus Aquilaria of family Thymelaeaceae known to produce resin-impregnated heartwood that is fragrant and highly valuable. Agarwood is reputed to be the most expensive wood in the world. Twenty two open pollinated families in A. malaccensis were selected and evaluated for growth attributes and genetic divergence. The experiment was conducted at Forest College and Research Institute, Tamil Nadu Agricultural University; Mettupalayam situated at 11° 19’ N longitude, 76° 56’ E latitude at 300 MSL during January - December 2010. The study indicates significant differences among the selected families for various growth attributes. Among the twenty two progenies evaluated, three progenies viz., NHJA, KHOW-1 and CHEK-1 exhibited consistent superiority over growth periods for shoot length, collar diameter and number of branches. Genetic divergence studies resulted in grouping of the selected families into six clusters which indicated the existence of adequate genetic divergence. Among the clusters, cluster VI was the largest with 9 progenies while the maximum intra clusters distance was recorded in cluster V. The intra and inter cluster distance revealed that maximum inter cluster distance was recorded between cluster IV and V which indicated the presence of wide genetic distance between A. malaccensis progenies. Among the various growth attributes, number of branches contributed maximum towards genetic divergence followed by shoot length. These two characters could act as a reliable indicator for future improvement programme in this economically important species. Genetic analysis of the progenies indicated adequate variability in the population. The phenotypic co-efficient of variation (PCV) and genotypic co-efficient of variation (GCV) estimates exhibited superiority of number of branches followed by shoot length and collar diameter. In case of shoot length, collar diameter and number of branches exhibited moderate heritability. The genetic advance was high for shoot length followed by number of branches which indicated the reliability of these two parameters for inclusion in future improvement programme.Keywords: Aquilaria malaccensis, provenances, variability, heritability, genetic divergence, intra and inter cluster distance

SYNTHESIS, CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY OF NANO ZERO-VALENT IRON IMPREGNATED CASHEW NUT SHELL

Objective: The present study is focussed on the synthesis and evaluation of the antibacterial activity of nano zero-valent iron (NZVI) impregnated cashew nut shell (NZVI-CNS). Antibacterial activity was determined by adopting agar well diffusion method against selected bacteria.Methods: The preparation was carried out by simple liquid-phase reduction method, namely, borohydride reduction method. The anti-bacterial activity of the NZVI-CNS was studied against by adopting well diffusion assay method. Superparamagnetism behaviour has been studied using a permanent bar ferro magnet.Results: The nanoparticles obtained have been characterized with various techniques like Scanning Electron Microscopy (SEM) and Transmission Electron microscope (TEM) analyses. These techniques showed that the formations of NZVI with an average size of 50 to 100 nm and also it was found to be hexagonal and spherical in shape. The obtained NZVI impregnated CNS exhibits better superparamagnetism phenomenon. The synthesized cashew nut shell impregnated NZVI had the potential to inhibit the bacterial strains Escherichia coli, Klebsiella and Serratia marcescens.Conclusion: The synthesis process for NZVI nanoparticles impregnated CNS is simple, cost-effective, and eco-friendly. The synthesized NZVI impregnated CNS had the greater potential as effective growth inhibitors in the various microorganisms and this can be applied to the diverse pharmacological applications.Â

Brzi lateks aglutinacijski test za serološki dokaz serotipa 4 ptičjeg adenovirusa upotrebom rekombinantnog antigena

Hydropericardium hepatitis syndrome (HPS) is a newly emerging disease of poultry, which is caused by fowl adenovirus serotype 4. The virus was propagated in a primary chicken embryo liver culture. The cytopathic effect was observed from the third passage onwards. DNA was isolated from the infected culture and used as a template for amplification of a partial hexon gene (700 bp) using hexon gene specific primers. The amplified product was cloned into pProEX HT b vector and the ligated product was transformed into DH5α cells. The recombinant clones were analyzed by colony PCR and plasmid isolation, followed by restriction digestion to check the insert release. The positive clones were induced by IPTG. The induced culture fractions were checked at different hours and the induction was high at the 4th hour onwards. The expressed proteins were purified and confirmed by using hyperimmune serum against FAV4 by western blot analysis and the protein size of 50kda was obtained. The purified recombinant FAV4 protein was used as a serodiagnostic agent using enzyme linked immunosorbent assay and latex agglutination test.Sindrom hidroperikarda i hepatitisa nova je bolest peradi uzrokovana serotipom 4 ptičjeg adenovirusa. Virus je bio umnožen u primarnoj staničnoj kulturi podrijetlom od jetrenoga tkiva pilećega zametka. Citopatski učinak javio se nakon treće pasaže. DNK je bila izdvojena iz zaražene kulture i rabljena kao kalup za umnožavanje dijela gena heksona (700 bp) uz upotrebu specifičnih početnica. Umnoženi odsječak bio je kloniran u vektoru pProEX HT b, a proizašli proizvod prebačen u DH5α stanice. Rekombinantni klonovi bili su analizirani lančanom reakcijom polimerazom i izdvajanjem plazmida nakon čega je pomoću restrikcijske digestije provjerena uspješnost postupka. Pozitivni klonovi bili su inducirani pomoću IPTG-a. Frakcije induciranih stanica bile su provjeravane svakog sata, a indukcija je bila velika nakon četiri sata. Proizvedene bjelančevine bile su pročišćene i identificirane uporabom hiperimunoga seruma za FAV4 Western blot analizom te se pokazalo da je proizvedena bjelančevina veličine 50 kda. Pročišćena rekombinantna bjelančevina FAV4 bila je rabljena kao antigen u imunoenzimnom testu i lateks aglutinacijskom testu

Implementation of ERP in an Automobile Manufacturing Shop Floor

The implementation of enterprise resource planning (ERP) systems has been known to be much more difficult than the development of a computer application supporting a single business function. This paper addresses the implementation of an ERP system in an automobile manufacture shop floor. This paper examines step by step procedure for implementing an ERP system within the shop floor and also looks improve business process and operations through good business communication system. The Development of a planning module by visual basic programming language were also discussed

Experimental Investigation of the Effect of Fluid-Solid Mixture Flow by Pneumatic System in Textile Industry

The transport of multiphase flows of slurry (fluid-solid) through pipelines is usually encountered through several hurdles in various industries such as cement, textile and chemical industries. The flow parameters such as solids concentration, pipe directions and so on, add to these complexities and concepts associated with transport of slurries seems to be uncertain which has resulted in significant research being conducted on flow of slurries through pipelines. The investigation has been carried out in Textile and garment factory at Ethiopia in eastern Africa. The objective of the investigation is to study the effects of transporting of fluid-solid mixture (air-cotton ball) through horizontal, vertical and inclined pipelines in a textile factory. For this purpose one generalized mathematical model developed by Shrivastava and Kar (SK Model) was applied to predict more accurate results of pressure drop. The results of pressure drop obtained using SK model were compared with experimental results. The results showed that the percentage of head losses is increased in the smaller diameter pipe line about 48% and 67% with air velocity 12 m/s and 24 m/s respectively as compared to that of larger diameter pipeline. In the proposed pipeline system, it was observed that the energy saving can be achieved about 65% and 77% with air velocity 12 m/s and 24 m/s respectively

Ethyl 3-methyl-2,6-diphenyl­piperidine-1-carboxyl­ate

In the title compound, C21H25NO2, the piperidine ring adopts a twisted boat conformation characterized by puckering parameters θ = 89.5 (1) and ϕ = 257.5 (2)°. The phenyl groups are located in equatorial and axial positions on the central piperidine ring, while the methyl group is in an equatorial position. The dihedral angle between the phenyl rings is 49.8 (1)°. An intra­molecular C—H⋯O inter­action occurs. The crystal structure features weak inter­molecular C—H⋯O inter­actions and a stabilizing inter­molecular C—H⋯π contact involving the axial phenyl ring

Synthesis of ultra-high temperature silicon oxycarbide (SiOC) glass by an organic-inorganic hybrid route

Silicon oxycarbide is a new generation amorphous glassy ceramic possessing unique electrical, mechanical, optical properties and ultra-high temperature stability upto 2730°C. It has numerous engineering applications in additive manufacturing, lithium-ion batteries, brake disks for sports car, ultra-fast and high voltage LEDs, MOSFETs, thyristors for high power switching, astronomical telescope, nuclear power reactor etc. In this work, SiOC was prepared by sol-gel technique using organic-inorganic hybrids as precursors. Tetraethoxysilane (TEOS) and Polydimethylsiloxane (PDMS) were used as silica and carbon sources respectively. SiOC sols were formed through hydrolysis of TEOS and PDMS. The used chemicals in this process involved isopropanol, distilled water and hydrochloric acid, which is used here as solvent, hydrolytic agent and catalyst respectively, at different refluxing condition, alkoxide to water ratios, pH levels etc. The sols thus formed were allowed to gel over a varying period (up to maximum of 10 days). After drying the gels for 24 hours, the same was pyrolysed at 1100°C under inert nitrogen atmosphere to yield SiOC. Phase formation was carried out by X-Ray Diffraction (XRD) technique, X-ray Photoelectron Spectroscopy (XPS) analysis and Raman Spectroscopic analysis. XRD data showed formation of a broad peak at 2θ~22 degrees indicating formation of amorphous SiOC and absence of any crystalline peaks indicating no SiC or Si was formed during pyrolysis. XPS data shows the presence of Si, O and C peaks in the range 100-200 eV, 530 eV and 285 eV, respectively, confirming formation of SiOC. It was revealed that within the random network of Si-O tetrahedra, islands of only C-C bonds were responsible for coloring the SiOC glass black. The estimation of mechanical properties revealed that the hardness value and Young’s modulus, of the synthesized SiOC ceramic sample, was determined to be 11.67 GPa and 75.79 respectively which indicating the better mechanical properties than other reported SiOC systems