jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: GURARDA AYCA | KANIK MEHMET | Naime Çalışkan
Source: Industria Textila (article, 2019-01-01)
Field: Materials Science — Polymers and Plastics

Peel resistance and stiffness of woven fabric with fusible interlinings Interlining is a layer of fabric placed between the garment fabrics to form and enhance the stiffness of the garment. The fusible interlining can be bonded to the fabric at a specific temperature, time and pressure. These parameters are very important for the peel resistance and stiffness of the fabric with fusible interlining. In this study, cotton woven face fabric and three different fusible interlinings(plain, twill and nonwoven fusible interlining)were chosen as experimental samples. Different fusing temperatures between 130 °C and 170 °C and different fusing times (5–10 and 15 sec) selected for fusing of the interlinings to the fabric. The purpose of this study is to investigate the effect of fusing temperature and time on peel resistance and stiffness of fabric with fusible interlinings. Results indicated that the stiffness of the fabric withcotton plain fusible interlining increased with increase fusing temperature and fusing time. Results indicated that the stiffness of the fabric withpolyester twill fusible interlining increased with increase fusing temperature and decrease fusing time. Results indicated that the stiffness of the fabric with polyamide nonwoven fusible interlining increased with increase fusing temperature until 140 °C and increase fusing time until 10 sec. Results indicated that the peel resistance between the cotton plain and polyester twill fusible interlining andface fabric increased with increase fusing temperature and fusing time. Fusible alloy ; Interlining ; Composite material ; Materials science ; Stiffness Textile materials and evaluations ; Dyeing and Modifying Textile Fibers ; Ergonomics and Musculoskeletal Disorders
Authors: Esin Sarıoğlu
Source: Industria Textila (article, 2019-08-27)
Field: Materials Science — Polymers and Plastics

Quality optimization of ring spun yarns produced from blends of regenerated cellulosic fibres with cotton and polyester produced from blends of regenerated cellulosic fibres with cotton and polyester Polyester ; Cellulosic ethanol ; Materials science ; Composite material ; Polymer science ; Cellulose fiber ; Pulp and paper industry ; Cellulose ; Fiber ; Chemical engineering ; Engineering Textile materials and evaluations ; Dyeing and Modifying Textile Fibers ; Color perception and design
Authors: Sarah Malek | Boubaker Jaouachi | Faouzi Khedher | Dominique Adolphe
Source: Autex Research Journal (article, 2019-08-08)
Field: Materials Science — Polymers and Plastics

Sewing Thread Consumption for Different Lockstitches of Class 300 Using Geometrical and Multi-Linear Regression Models Abstract This paper aims to provide rapid and precise methods to allow industrials to predict the amount of sewing thread needed to sew a garment using different lockstitches of class 300 (301, 301/301, 304, 308, 309, 310, 311, 312, and 315). To avoid unused stocks for each stitch type, a sewing consumption value was determined using a geometrical method of different lockstitch shapes. Furthermore, the relationships between overall geometrical models of the studied lockstitches of class 300 were developed. Indeed, based on the geometrical model of lockstitch type 301, all theoretical models proposed were investigated and proved to be accurate. Moreover, referring to the findings, the prediction of the sewing thread consumption relative to each investigated lockstitch was proposed as a function of the studied input parameters. To improve the established models using geometrical technique, a statistical method was conducted. In addition, based on multi-linear regression, compared geometrical and statistical results were discussed and the coefficient R2 value was determined to evaluate the accuracy of the tested methods. By comparing the estimated thread consumption with the experimental ones, we concluded that the accuracy of the models is significant (R2 ranged from 93.91% to 99.10%), which encourages industrialists to use geometrical models to predict thread consumption. Therefore, the accuracy of prediction using the geometrical method is more accurate than the statistical method regarding the range of R2 (from 92.84% to 97.87%). To classify the significance of all studied parameters, their contributions to the sewing thread consumption behavior were analyzed in the experimental design of interest. It was concluded that the most important parameters affecting thread consumption are stitch width, stitch density, and the gap between two needles. The thickness of fabric has a low contribution to the thread consumption value, whereas the effect of yarn count can be neglected. Thread (computing) ; Linear regression ; Computer science ; Regression analysis ; Mathematics ; Statistical analysis ; Regression ; Statistics Textile materials and evaluations ; Industrial Vision Systems and Defect Detection ; Color perception and design
Authors: Antonio O. Costa | Claure N. Lunardi | Anderson J. Gomes
Source: Current Nanomedicine (article, 2019-08-26)
Field: Materials Science — Biomaterials

Kinetic Evaluation of Anti-tumor Chlorambucil Release from O-stearoyl Mannose PLGA Nanoparticles Purpose: This study assesses the kinetics of the anti-tumor drug chlorambucil (CLB) incorporated into PLGA nanoparticles (NP-CLB) with and without the presence of the O-stearoyl mannose (OEM) functionalizing agent (NP-CLBMAN). Methods: OEM was synthesized and used in the NP-CLB-MAN formulation. The nanoparticles were characterized by dynamic light scattering, electrophoretic light scattering, scanning electron microscopy, and Fourier-transform infrared spectroscopy. Results: The nanoparticles presented an encapsulation efficiency greater than 61% and a PdI between 0.186–0.217. The mean size was 185 nm for NP-CLB and 220 nm for NPCLB- MAN, and the zeta potential values were -17.7 mV for NP-CLB and -14.2 mV for NP- CLB-MAN. Scanning electron microscopy showed that NPs with OEM have a surface with a different shape, and FTIR analyses showed binding of CLB to the drug delivery system, as well as functionalization with OEM. In vitro release studies showed a biphasic release profile for both systems, and they were analyzed considering the mathematical Korsmeyer-Peppas, first-order, and Fick diffusion models, and the combination of the first-order and Fick diffusion models. Conclusion: The experimental results obtained for the release of CLB were better described using a combination of the first order and Fick diffusion mathematical models. Dynamic light scattering ; Zeta potential ; Nanoparticle ; Fourier transform infrared spectroscopy ; PLGA ; Scanning electron microscope ; Chemistry ; Materials science ; Nuclear chemistry ; Chemical engineering ; Nanotechnology ; Composite material Nanoparticle-Based Drug Delivery ; RNA Interference and Gene Delivery ; Advanced Drug Delivery Systems
Authors: Joseph M. Flitcroft | Adam R. Symington | Marco Molinari | Nicholas A. Brincat | N. R. Williams | Stephen C. Parker
Source: Inorganic Chemistry (article, 2019-03-05)
Field: Materials Science — Materials Chemistry

Impact of Hydrogen on the Intermediate Oxygen Clusters and Diffusion in Fluorite Structured UO<sub>2+<i>x</i></sub> Uranium dioxide is the most prevalent nuclear fuel. Defect clusters are known to be present in significant concentrations in hyperstoichoimetric uranium oxide, UO<sub>2+ x</sub>, and have a significant impact on the corrosion of the material. A detailed understanding of the defect clusters that form is required for accurate diffusion models in UO<sub>2+ x</sub>. Using ab initio calculations, we show that at low excess oxygen concentration, where defects are mostly isolated oxygen interstitials, hydrogen stabilizes the initial clustering. The simplest cluster at this low excess oxygen stoichiometry consists of a pair of oxygen ions bound to an oxygen vacancy, namely the split mono-interstital, which resembles larger split interstitials clusters in UO<sub>2+ x</sub>. Our data shows that, depending on local hydrogen concertation, the presence of hydrogen stabilizes this cluster over isolated oxygen interstitials. Chemistry ; Fluorite ; Diffusion ; Hydrogen ; Oxygen ; Crystallography ; Chemical physics ; Inorganic chemistry ; Thermodynamics ; Organic chemistry Nuclear Materials and Properties ; Radioactive element chemistry and processing ; Nuclear reactor physics and engineering
Authors: Wenbin Qian | Juan Wang | Hanjing Ding | Wenjing Xie
Source: Journal of Chromatography A (article, 2019-01-24)
Field: Chemistry — Spectroscopy

Modeling of the static batch desorption and dynamic column elution of geniposidic acid from a porous anion-exchanger Desorption ; Chemistry ; Elution ; Diffusion ; Chromatography ; Ion exchange ; Analytical Chemistry (journal) ; Adsorption ; Ion ; Thermodynamics ; Organic chemistry Analytical Chemistry and Chromatography ; Drug Transport and Resistance Mechanisms ; Saffron Plant Research Studies
Authors: Rajkumar Mahalakshmi | Kumari P Preethi | D. Kalaiselvi | M. Manjuladevi | K. Karthik | Ramalatha Marimuthu
Source: RASAYAN Journal of Chemistry (article, 2019-01-01)
Field: Chemistry — Organic Chemistry

ADSORPTION BEHAVIOUR OF CHEMICALLY MODIFIED CELLULOSE BEARING BENZOTHIAZOLE CHELATING GROUP TOWARDS LEAD IONS FROM WATER BODIES The selective removal of Pb 2+ ions by chemically modified cellulose hybrid materials have received great consideration because of their superior adsorption capacities as various chemicals, such as mineral and organic acids, bases, oxidizing agents, and organic compounds, have been used for modifications. This work is to synthesize chemically modified cellulose and examine its adsorption capacity towards lead ions from the effluent water by the adsorption studies like pH, contact time, the dosage of the adsorbent, metal ion concentration, temperature and desorption of the adsorbent material. Benzothiazole ; Adsorption ; Chelation ; Cellulose ; Chemistry ; Ion ; Group (periodic table) ; Bearing (navigation) ; Polymer chemistry ; Organic chemistry Synthesis and Characterization of Heterocyclic Compounds
Authors: А. В. Вахрушев | Aleksey Yu. Fedotov
Source: Frattura ed Integrità Strutturale (article, 2019-06-16)
Field: Materials Science — General Materials Science

Simulation of deformation and fracture processes in nanocomposites The paper studies the processes of deformation and fracture in nanocomposites. The study was curry out by the method of mathematical modeling. The behavior of the nanosystem was described by the molecular dynamics apparatus. A modified immersed atom method was used as a potential. Demonstrated theoretical approaches to the study of the mechanical properties of nanocosposites and the processes of their destruction. Formulas for calculating the stress, strain tensors and displacement veare given. To maintain a constant temperature in the nanosystem, a Nose – Hoover thermostat was used. The destruction of nanocomposites was considered in the process of tension and shear deformation. Pure aluminum, a composite with an aluminum matrix and a filler in the form of spherical iron particles, and a composite with an aluminum matrix and a filler in the form of a cylindrical iron fiber were used as samples. After the filler was introduced into the nanocomposite, the sample was relaxed to ensure its more stable state. The simulation allowed us to establish the basic laws of changes in the atomic structure of the matrix and nanocomposite fillers during deformation and fracture. It is shown that the processes of deformation and destruction of nanocomposites substantially depend both on the structure and types of loading of the material. The results of the research can be used to study the processes of deformation of nanocomposite materials with promising functional properties. Nanocomposite ; Materials science ; Composite material ; Deformation (meteorology) ; Composite number ; Filler (materials) ; Matrix (chemical analysis) ; Fracture (geology) Material Properties and Applications ; Advanced Theoretical and Applied Studies in Material Sciences and Geometry ; Structural mechanics and materials
Authors: Shimaa Gomaa | Nora M. Hilal | Samia H. Abofarha
Source: Egyptian Journal of Chemistry (article, 2019-08-29)
Field: Materials Science — Materials Chemistry

Improvement of Dyeing and Antimicrobial Properties of Cotton Fabrics Through Pre-treatment with Silver Nanoparticles Silver nanoparticles have been synthesized by chemical reduction of silver salt solution, characterized by its surface plasmon resonance peak in absorption spectra at 425 nm. The studies were carried out by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDX) and Fourier transform infrared spectroscopy (FTIR). The size and size distribution of these nanoparticles have also been examined using particle size analyzer, the average size of the particles is found to lie between 5 nm and 50 indicated the presence of micrometer-size conglomerates composed of much smaller particles. Chemical analysis performed with the use of EDX revealed that the powder contains about 72% of silver. The findings support the size and shape of the synthesized nano silver particles. These nanoparticles have been applied to cotton, by usual exhaustion process and manifested the improved microbial resistance. The dyeing behavior of the treated fabrics with reactive yellow 2 has been studied and the build-up of dye, measured as color strength in terms of K/S values. The higher K/S values are obtained when the Ag nano is anchored in the fiber matrix. Improved color strength with good wash and light fastness is also obtained after treatment of fabrics with nanoparticles. Dyeing ; Antimicrobial ; Silver nanoparticle ; Materials science ; Nanoparticle ; Pulp and paper industry ; Polymer science ; Nanotechnology ; Chemistry ; Composite material ; Organic chemistry ; Engineering Nanoparticles: synthesis and applications ; Dyeing and Modifying Textile Fibers
Authors: Mayara Oliveira | Stefane N. Costa | Norberto de Kássio Vieira Monteiro | Pedro de Lima‐Neto | Graciete Maria Santos de Magalhães | Izaura C.N. Diógenes | Rinaldo dos Santos Araújo | Elisane Longhinotti
Source: Journal of the Brazilian Chemical Society (article, 2019-01-01)
Field: Chemistry — Physical and Theoretical Chemistry

Experimental and Computational Studies of the Adsorption of Furan, Pyrrole, and Thiophene on Hydroxyapatites in a Single and Ternary Component Non-doped (Hap) and doped hydroxyapatites with Cu 2+ and Fe 2+ were synthesized and used to study the adsorption of furan (Fur), pyrrole (Pyr), and thiophene (Thi) in single and ternary component systems. Spectroscopic data and N 2 isotherms indicated there were no structural alterations in Hap with the incorporation of Cu 2+ and Fe 2+ . For both single and ternary components, the incorporation of the metal ions resulted in an adsorption increment consistent with the hard-soft acid-base concept. When comparing the systems, there is an inversion with Thi (5.41 mg g -1 ) and Fur (5.51 mg g -1 ) being the most adsorbed species in the single and ternary components, respectively. Monte Carlo simulations helped explain the observed experimental trends. While the electrostatic effect seems to prevail in the single system, in the ternary one the mass transport phenomenon is also operative implying greater availability of Fur on surface leading to its higher adsorption efficiency. Ternary operation ; Furan ; Thiophene ; Component (thermodynamics) ; Hydroxyapatites ; Pyrrole ; Adsorption ; Chemistry ; Materials science ; Organic chemistry ; Computer science ; Thermodynamics ; Physics Advanced Physical and Chemical Molecular Interactions ; Various Chemistry Research Topics
Authors: K. Arunprasath | V. Arumugaprabu | P. Amuthakkannan | V. Manikandan
Source: International Journal of Engineering and Advanced Technology (article, 2019-12-30)
Field: Materials Science — Polymers and Plastics

Performance Studies On Flax Fiber Reinforced Polymer Composites – An Effect On Fiber Orientation The plant based nature fiber added as a reinforced material for so many structural applications. From this awareness of earlier research in this paper by changing orientation of fiber and the mechanical properties and machining performance of flax fiber evaluated. The preparation of composite polyester resin was used with varying layers of flax fibers. The hand layup technique was adopted to fabricate the composites. The main aim of this research is to find out the effect of the fiber orientation. Different fiber orientations were used like 0º, 30º, 45˚, 60˚, and 90˚. Mechanical properties, tensile and flexural strength and abrasive water jet machining also performed to study the kerf angle. It was found that 00 and 900 orientation exhibited the better performance. Materials science ; Composite material ; Ultimate tensile strength ; Fiber ; Flexural strength ; Machining ; Composite number ; Polyester ; Orientation (vector space) ; Mathematics Natural Fiber Reinforced Composites ; Mechanical Engineering and Vibrations Research ; Engineering and Agricultural Innovations
Authors: Manuel Umaña-Calderón | Janice Muñoz-Mena | Yuliana Pacheco-Retana | Guillermo Asdrúbal Vargas Elías
Source: Revista Tecnología en Marcha (article, 2019-04-24)
Field: Chemistry — Inorganic Chemistry

Cinetica del secado de coco por radiacion El coco es una fruta que puede aprovecharse completamente desde su parte líquida hasta su parte sólida, considerando la parte alimenticia y los residuos. La parte sólida puede utilizarse directamente como alimento, también puede ser procesado para su uso posterior. El secado es un proceso necesario para su conservación, por lo tanto se evaluó el secado por radiación para establecer la relación entre rapidez y temperatura del proceso. Se utilizaron las temperaturas de 60, 80,100 y 120 °C. El coco fue extraído, molido y homogenizado manualmente. Se utilizó un deshidratador con transmisión de calor por radiación en cuatro temperaturas de proceso. El contenido de humedad fue determinado por la pérdida de masa hasta obtener peso constante en una capa delgada de producto. Se determinó que durante secado, el contenido de humedad es exponencialmente decreciente y el modelo matemático de Midilli se ajustó adecuadamente con un coeficiente de determinación (R2) mayor al 94 %. El efecto de la temperatura en la rapidez del proceso se ajustó con la ecuación de Arrhenius. Se determinó que la energía de activación del proceso de secado por radiación en coco fue de 60,7 kJ/mol. La relación matemática de la rapidez del secado es una doble exponencial que depende directamente de la temperatura y el tiempo de secado. Humanities ; Physics ; Coco ; Philosophy Coconut Research and Applications
Authors: Xiangnan Wang | Tao Liu | Jingkun Yu
Source: Scientific Reports (article, 2019-04-05)
Field: Materials Science — Materials Chemistry

An application of (4YSZ)0.93(Fe2O3)0.07 in limiting current oxygen sensor (4YSZ)<sub>0.93</sub>(Fe<sub>2</sub>O<sub>3</sub>)<sub>0.07</sub> and 9 mol% Y<sub>2</sub>O<sub>3</sub> stabilized ZrO<sub>2</sub> (9YSZ) were synthesized by co-precipitation method and their crystalline structure, microstructure, electronic conductivity, total conductivity were characterized. A limiting current oxygen sensor was assembled with (4YSZ)<sub>0.93</sub>(Fe<sub>2</sub>O<sub>3</sub>)<sub>0.07</sub> dense diffusion barrier and 9YSZ solid electrolyte by Pt sintered-paste method. Influences of temperature (T), oxygen concentration (x(O<sub>2</sub>)) and water vapor pressure (p(H<sub>2</sub>O)) on sensing characteristics of the limiting current oxygen sensor were investigated. The crystalline structure of (4YSZ)<sub>0.93</sub>(Fe<sub>2</sub>O<sub>3</sub>)<sub>0.07</sub> and 9YSZ belong to cubic structure with [Formula: see text]. The total conductivity of (4YSZ)<sub>0.93</sub>(Fe<sub>2</sub>O<sub>3</sub>)<sub>0.07</sub> is higher than that of 9YSZ and the electronic and total conductivities of the samples meet the linear relationship with 1000/T. The limiting current oxygen sensor exhibits excellent sensing characteristics under test conditions. The effects of T, x(O<sub>2</sub>) and p(H<sub>2</sub>O) are as follows: Log(I<sub>L</sub>·T) depends linearly on 1000/T, I<sub>L</sub> depends linearly on x(O<sub>2</sub>) and I<sub>L</sub> is not significantly dependent on p(H<sub>2</sub>O). Limiting ; Oxygen sensor ; Conductivity ; Oxygen ; Analytical Chemistry (journal) ; Limiting current ; Electrolyte ; Electrical resistivity and conductivity ; Materials science ; Diffusion ; Chemistry ; Electrochemistry ; Physical chemistry ; Thermodynamics ; Physics ; Electrode ; Chromatography Advancements in Solid Oxide Fuel Cells ; Analytical Chemistry and Sensors ; Gas Sensing Nanomaterials and Sensors
Authors: Navneet Singh | Vanika Priya | Ridhima Bhasin | Kunika Verma
Source: International Research Journal of Pharmacy (review, 2019-04-23)
Field: Chemistry — Organic Chemistry

AN EXPLORATION OF SUNDRY NATURE OF BENZOTRIAZOLE DERIVATIVES: A REVIEW Benzotriazole has been a matter of discussion among scientific community due to its potential characteristics and touched areas such as medicinal, pharmacological, clinical, industrial etc. On screening the literature, this work for the first time gave a comprehensive review on the latest and remarkable developments of benzotriazole derivatives covering multifarious number of activities such as antifungal, antibacterial, anticancer, anthelmintic, antidepressant, antioxidative, antitubercular, antiviral, anticorrosive, plant growth inhibitor, anti-inflammatory, etc. The purpose of this study was to explore its sundry nature, to investigate the most active site and to generate a data base for prominent methods of synthesis for benzotriazole derivatives in a single review article which has not been done before. The investigation through this review article has revealed that, the credit for sundry nature of benzotriazole derivatives goes to 1-position nitrogen in benzotriazoles. The study has put a light on the fact that, when various substituents are added to 1-position nitrogen in benzotriazoles it effectively contributes toward its diverse nature. Benzotriazole ; Chemistry ; Combinatorial chemistry ; Organic chemistry Multicomponent Synthesis of Heterocycles ; Synthesis and Biological Evaluation ; Synthesis of Tetrazole Derivatives