Miracle-dz/UniFAR-FTUs huggingface dataset:
Supramolecular Chemistry and Self-Assembly in Organic Materials Design

Organic materials naturally lend themselves to the crafting of structure and function using the strategies of self-assembly and supramolecular chemistry employed so effectively by biological systems. This perspective illustrates progress over the past two decades on self-assembly in materials chemistry through research on systems where function is directly linked to noncovalent interactions among molecules. The genesis of this approach in chemistry of materials involves the design of relatively simple structures using hydrogen bonding, π–π stacking, metal–ligand interactions, electrostatic forces, strong dipole–dipole association, hydrophobic forces, and steric repulsion. Gradually many new and exciting opportunities have emerged, such as supramolecular nanostructures that assemble into functional bulk materials and supramolecular polymers in which the motif of covalent connections among monomers is imitated by creating one-dimensional assemblies of an arbitrarily large set of molecules in both compositio.
Viscosity and Surface-Promoted Slippage of Thin Polymer Films Supported by a Solid Substrate

Thermally activated flow dynamics of polystyrene films supported by silicon is studied for a wide range of film thickness (h0) and molecular weights (Mw). At low Mw, the effective viscosity of the nanometer thin films is smaller than the bulk and decreases with decreasing h0. This is due to enhancement of the total shear flow by the augmented mobility at the free surface. As Mw increases, with h0 becoming smaller than the polymer radius of gyration (Rg), the effective viscosity switches from being substrate-independent to substrate-dependent. We propose that interfacial slippage then dominates and leads to plug flow. The friction coefficient is found to increase with h0 providing h0/Rg < ∼1, demonstrating a surface-promoted confinement effect.
A New Fault Tolerant Nonlinear Model Predictive Controller Incorporating an UKF-Based Centralized Measurement Fusion Scheme

A new Fault Tolerant Controller (FTC) has been presented in this research by integrating a Fault Detection and Diagnosis (FDD) mechanism in a nonlinear model predictive controller framework. The proposed FDD utilizes a Multi-Sensor Data Fusion (MSDF) methodology to enhance its reliability and estimation accuracy. An augmented state-vector model is developed to incorporate the occurred sensor faults and then a UKF algorithm is utilized to estimate the augmented state vector including system states along with the fault terms using a centralized measurement fusion scheme. The designed FDD architecture is then merged with a conventional NMPC to form a Fault-Tolerant Control System (FTCS). A series of sensor fault senarios is conducted on a Continuous Stirred Tank Reactor (CSTR) to comparatively illustrate the superiority of the proposed FTCS in eliminating the miserable impacts of the induced sensor faults against a conventional NMPC.
Adsorption of Cd~(2+) and Pb~(2+) in aqueous solution by biochars produced from the pyrolysis of different crop feedstock

Biochars were produced from the pyrolysis of wheat,corn straw and peanut husk respectively,at 350-500 ℃. The adsorpents of Cd2+ and Pb2+in aqueous solution by three biochars were investigated.The effect of pH,contract time,initial solution concention,adsorbent particlesize and adsorbent dose on the adsorption of Cd2+and Pb2+on biochars were also estimated.The results indicated that adsorption equilibrium of Cd2+ and Pb2+on biochars almost reached in 10 minutes.The equilibrium adsorption data fitted well to the Langmiur and Freundlich equation.The maximum adsorption capacities of Cd2+ and Pb2+on biochar from corn straw was much larger than wheat straw and peanut shell.When 150mg(6 g.L-1)biochar were used,adsorption capacity of Cd2+on three biochars was 90%,and Pb2+on biochar from corn straw was 90.30% while 52% and 47% on biochar from wheat straw and peanut shell respectively.It suggested that biochar from corn straw was expected to be good adsorbents for heavy metals removal from contaminated water:
A STUDY ON NEW HIRING STRATEGIES TO MANAGE TALENT CRISIS AT ENTRY LEVEL FROM THE PERSPECTIVE OF RECRUITERS AND FRESH GRADUATE ENGINEERJOB SEEKERS

Internet apart from influencing life of people has also emerged as a key HR tool for acquiring talent. Traditional HR strategies are being modernized, driven by technology and innovations. The remarkable popularity of internet & Social Media Sites, lower hiring cost & res ponce time and competitive advantage has allured the recruiters not only to use it for effective branding but also for hiring. They offer a great source of talent pool, as almost every fresh graduate / professional has Social Media account. Professional networking with social media as a recruitment tool is influencing with offer of better platform to both recruiters and this study discusses the Impact & effectiveness of New Hiring Strategies. Their advantages and limitations over traditional methods and their role in making or breaking the job opportunity. The study used data from secondary sources also personal interviews with industry professionals and Job seekers were conducted. A comprehensive analysis of the new trends has been done and described through various graphs and diagrams. The findings of the survey show a significant change in trend from traditional recruitment methods to modern techniques. However there remains good scope for improvement in utilizing the various benefits of the new strategies
Aqueous Solute Partitioning and Mesh Size in HEMA/MAA Hydrogels

Using two-photon confocal microscopy, equilibrium partition coefficients, k, were measured for aqueous Na-fluorescein, fluorescently labeled dextrans with molecular masses ranging from 4 to 20 kDa, two fluorescently labeled proteins with opposite charges, anionic bovine serum albumin (BSA), and cationic avidin in anionic 70 wt % hydroxyethyl methacrylate (HEMA)/30 wt % methacrylic acid (MAA) gels saturated with aqueous phosphate buffer solution. Cross-linking density with ethylene glycol–dimethacrylate (EGDMA) ranged from 0 to 1 wt %. All partition coefficients, except for avidin, were considerably less than unity and diminished strongly with increasing Stokes–Einstein diameter of the free aqueous solute. The average mesh size of the wet gels, obtained from the zero-frequency oscillatory shear-storage gel modulus, ranged from 3.6 to 8.3 nm over the cross-link ratios studied. Except for Na-fluorescein, solute hydrodynamic diameters were larger than the smallest average gel mesh size. Yet, all solutes perme.
FACTORS INFLUENCING SOLID SOLUBILITIES OF RARE-EARTHS IN Pd

A parameter describing the solid solubilities of mre-earths in Pd, Nf/aX(TR - rPd),was proposed, where N is the fshell filled electron nutnben △X the electronegativity dtherence between Palladium and rare-earths, rR the atotnic radii of rare-earth elementand rPd of Pd. The marimum solid solubilities are linear relation to this parnmeterexcept La, Nd and Ce.
Microwave‐Assisted Preparation of White Fluorescent Graphene Quantum Dots as a Novel Phosphor for Enhanced White‐Light‐Emitting Diodes

Graphene quantum dots (GQDs) with white fluorescence are synthesized by a microwave‐assisted hydrothermal method using graphite as the precursor. A solution‐processed white‐light‐emitting diode (WLED) is fabricated using the as‐prepared white fluorescent GQDs (white‐light‐emitting graphene quantum dots, WGQDs) doped 4,4‐bis(carbazol‐9‐yl)biphenyl as the emissive layer. White‐light emission is obtained from the WLED with 10 wt% doping concentration of WGQDs, which shows a luminance of 200 cd m−2 at the applied voltage of 11–14 V. Importantly, an external quantum efficiency of 0.2% is achieved, which is the highest among all the reported WLED based on GQDs or carbon dots. The results demonstrate that WGQDs as a novel phosphor may open up a new avenue to develop the environmentally friendly WLEDs for practical application in solid‐state lighting.
Implementation of Graph Embedding Algorithms in Node Classification for Wiki

As wiki data integration has become one of the most popular and freely available data sources on the Internet, more and more domestic and foreign researchers are studying and analyzing wiki data in-depth, However, when classifying nodes in wiki data sets, we encountered poor relevance of node classification, which led to the problem of reduced data quality, accuracy, and reliability. In response to existing problems, we propose to use graph embedding related algorithms to classify wiki data sets. To improve the accuracy of the classification task, we have implemented Deepwalk (Deep Walk Random Algorithm), Node2vec, and SDNE (Structural Deep Network Embedding) The algorithm is tested on the wiki data set. The final experimental results show that the Graph Embedding algorithm has a good effect on the node classification of graph structure data, and the SDNE algorithm is the best inaccurate.
Phenotypic and Metabolic Profiling of Biological Samples in Near Real-Time Using Raman Spectroscopy

Raman spectroscopy, together with multivariate statistical analyses, has proven to be a near real-time analytical technique capable of phenotyping cells, tissues and organs. This dissertation will show exclusively the application of the Raman spectroscopy phenotypic profiling method to; (i) microbial toxicity, (ii) ex-vivo organ perfusion, and (iii) subcellular location targeting. Real-time analytical methods for monitoring living biological systems will enable study of the physiological changes associated with growth, genetic manipulations, and adverse environmental conditions. Most existing analytical methods (NMR exempt), though highly accurate, must be performed off-line and most require destruction of the studied sample. These attributes make these methodologies less desirable to the study of physiological changes of cells, tissues, and organs. In this work, Raman spectroscopy has been identified and shown to be a good candidate for real-time analysis mainly because it can be performed: (i) in near realtime, (ii) non-destructively and with minimal sample preparation, (iii) through a glass barrier (i.e., can be performed in situ), and (iv) with minimal spectral interference from water. Here, Raman spectroscopy was used in combination with multivariate statistics to analyze the differing toxic effects of 4-C chain alcohols on E. coli. Good correlations were established between Raman spectra and off-line analytical techniques used to measure: (i) saturated, unsaturated, and cyclopropane fatty acids; (ii) amino acid composition of total protein; and (iii) cell membrane fluidity. Also, Raman “fingerprint” analysis was used to discriminate among different phenotypic responses of cells. In addition, this methodology was applied to analyze perfusates of organs maintained by the VasoWave organ perfusion system. Raman fingerprints can be used to assess organ health, and it is believed this data can be used to inform decisions such as whether or not to transplant an organ. Finally, molecular biology techniques were used to design and produce specific protein targets harboring a silver binding domain fusion, which upon release migrate to specific subcellular locations. By employing the related technique of surface-enhanced Raman scattering (SERS), which produces a highly amplified Raman signal in the presence of metallic nanoparticle substrates (e.g., silver nanoparticles), different regions of the E. coli cell structure were studied. The target regions studied by the technique included: (i) outer cell membrane, (ii) periplasm, and the (iii) cytoplasm.
Accumulation and Release of Trace Inorganic Contaminants from Biofilm Matrices Produced and Challenged Under Drinking Water Distribution System Conditions

Accumulation and Release of Trace Inorganic Contaminants from Biofilm Matrices Developed and Challenged under Drinking Water Distribution System Conditions by William W. Kent, Master of Science Utah State University, 2016 Major Professor: Joan McLean Department: Civil and Environmental Engineering Over the legacy time frames experienced by drinking water distribution systems (DWDS), trace inorganic contaminants (TICs) such as arsenic, lead, antimony, thallium, and chromium can accumulate in high concentrations within a biofilm matrix containing iron (Fe) and manganese (Mn) oxyhydroxides. Release of TICs can occur when these matrices are disturbed by a physical or chemical change. A bench scale factorial design using recirculating glass columns (25 mm x 300 mm) with abraded 3 mm glass beads, was used to establish biofilm matrices under a standard conditions at 16°C, 0.2 mg/l chlorine (Cl2,) and 1 mg/L dissolved organic carbon (DOC) for 6 months. The developed matrix was then challenged by altering the temperature (7 and 25°C) and concentrations of Cl2 (0 and 2 mg/L) and DOC (0 and 2 mg/L). During this 4 week challenge phase, effluent TIC concentrations were monitored, after which each column was sacrificed and analyzed for ATP and DNA, and TIC distribution within the solids using sequential extractions and total digestions. Solid phase Mn and Fe were associated with the organic fraction of the biofilm matrix. With increased Cl2, more accumulation of Mn occurred due to the oxidation of
F-Specific RNA Bacteriophages as Model Viruses in UV Disinfection of Wastewater

F-specific RNA (FRNA) bacteriophages can be assayed in wastewater by simple and rapid methods. Their inactivation by UV radiation follows first-order kinetics and relatively simple formulas can describe the effect of UV absorbance by wastewater and the wavelength-dependent killing efficiency of polychromatic lamps. Because the organisms can be grown in high concentrations, biological calibration of full-scale reactors requires only relatively small volumes of phage culture. Naturally occurring FRNA-phages were more resistant to UV than somatic coliphages, Escherichia coli and faecal streptococci. The inactivation rate constant was almost equal to that of reoviruses, which underlines the suitability of FRNA-phages as a process indicator for UV inactivation of viruses. A pure culture of MS2 was inactivated at a rate which was almost twice that of naturally occurring FRNA-phages, indicating the necessity of designing reactors for practical applications on field-data rather than laboratory experiments.
Optimization of the Biodegradation of BTEX by Pseudomonas Putida Immobilized In PVA Gel

in English) This thesis examined the biological treatment of gas streams containing Benzene, Toluene, Ethylbenzene and o-Xylene using a spouted bed bioreactor. Organic-degrading bacteria, Pseudomonas putida, were immobilized in Polyvinyl Alcohol matrices. An initial investigation of Toluene degradation was carried out by studying the reduction rate of dissolved oxygen as a function of initial Toluene concentration, residence time, gas flow rate, temperature, Polyvinyl Alcohol volume fraction % and pH. A parametric study for the continuous biodegradation of Benzene, Toluene, Ethylbenzene and o-Xylene was carried out to evaluate the effect of different operating parameters on the performance of the bioreactor for dual and multi-component mixtures. The effects of Polyvinyl Alcohol volume fraction in the bioreactor, air flow rate, initial gases concentration, operating temperature, water pH and competitive biodegradation (single, dual and multi-components) on the biodegradation rate were evaluated. In order to determine the best geometry that would provide good mixing and high removal, a larger volume spouted bed bioreactor was built, tested, and optimized for the biodegradation process. Response Surface Methodology was used to optimize the biodegradation by Pseudomonas putida immobilized in Polyvinyl Alcohol matrices in spouted bed bioreactor. The parameters investigated included the contaminated air flow rate, operating temperature, Polyvinyl Alcohol volume fraction, and water pH. Maximum biodegradation efficiency was predicted to occur at an air flow rate of 500 ml/min, an
The effective latent heat of aqueous nanofluids

Nanoparticle suspensions, popularly termed ‘nanofluids’, have been extensively investigated for their thermal and radiative properties (Eastman et al 1996 Mater. Res. Soc. Proc. 457; Keblinski et al 2005 Mater. Today 8 36–44; Barber et al 2011 Nanoscale Res. Lett. 6 1–13; Thomas and Sobhan 2011 Nanoscale Res. Lett. 6 1–21; Taylor et al 2011 Nanoscale Res. Lett. 6 1–11; Fang et al 2013 Nano Lett. 13 1736–42; Otanicar et al 2010 J. Renew. Sustainable Energy 2 03310201–13; Prasher et al 2006 ASME J. Heat Transfer 128 588–95; Shin and Banerjee 2011 ASME J. Heat Transfer 133 1–4; Taylor and Phelan 2009 Int. J. Heat Mass Transfer 52 5339–48; Ameen et al 2010 Int. J. Thermophys. 31 1131–44; Lee et al 2014 Appl. Phys. Lett. 104 1–4). Such work has generated great controversy, although it is (arguably) generally accepted today that the presence of nanoparticles rarely leads to useful enhancements in either thermal conductivity or convective heat transfer. On the other hand, there are still examples of unanticipated enhancements to some properties, such as the specific heat of molten salt-based nanofluids reported by Shin and Banerjee (2011 ASME J. Heat Transfer 133 1–4) and the critical heat flux mentioned by Taylor and Phelan (2009 Int. J. Heat Mass Transfer 52 5339–48). Another largely overlooked example is the reported effect of nanoparticles on the effective latent heat of vaporization (hfg) of aqueous nanofluids, as reported by Ameen et al (2010 Int. J. Thermophys. 31 1131–44). Through molecular dynamics (MD) modeling supplemented with limited experimental data they found that hfg increases with increasing nanoparticle concentration, for Pt nanoparticles (MD) and Al2O3 nanoparticles (experiments). Here, we extend those exploratory experiments in an effort to determine if hfg of aqueous nanofluids can be manipulated, i.e., increased or decreased by the addition of graphite or silver nanoparticles. Our results to date indicate that, yes, hfg can be substantially impacted, by up to ±30% depending on the type of nanoparticle. Moreover, in this paper, we report further experiments with changing surface area based on volume fraction (0.005 to 2%) and various nanoparticle sizes to investigate the mechanisms for hfg modification in aqueous graphite and silver nanofluids.
The effect of functionalized MWCNT and SDS on the characteristic and performance of PAN ultrafiltration membrane

AbstractIn this study, the influence of functionalized multi-walled carbon nanotube (F-MWCNT), sodium dodecyl sulfate (SDS) on the characteristic and performance of polyacrylonitrile (PAN) membrane was studied. The mixed matrix membranes were prepared via solution blending and phase inversion methods. MWCNTs were acidified and then functionalized by amino group using microwave. Three dosage of F-MWCNT, i.e. 0.5, 1 and 2 wt. %, and two dosage of SDS, i.e. 2.5 and 5 wt. %, were used to prepare mixed matrix membranes. The as-prepared membranes were characterized by scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), contact angle, and Fourier transform infrared spectroscopy. The hydrophilicity and pure water flux increased with addition of both additives. Separation performance of Bovine serum albumin (BSA) was investigated in three different pHs (5, 7 and 9). The results showed that both additives enhanced performance parameters of pure PAN m.
Plasma organochlorines, interaction between the aryl hydrocarbon receptor gene and organochlorines, and risk of non-Hodgkin lymphoma

The association between plasma organochlorine exposure and increased risk for nonHodgkin lymphoma (NHL) has been documented, although results are not consistent. No studies have yet explored gene-environment interactions with organochlorine exposure, which may provide more insight into etiology of disease. One candidate gene to study such gene-environment interactions is the aryl hydrocarbon receptor (AHR) gene, which is involved in detoxification of organochlorines in the body. This case-control study was conducted to measure the association between plasma organochlorines and NHL risk, and how variants in the AHR gene may modify this risk. All HIV-negative NHL cases aged 20-79 were diagnosed between March 2000 and February 2004, and resided in the Greater Vancouver or Greater Victoria regions. Controls frequency matched by age, sex and region were identified from the Client Registry of the BC Ministry of Health. Demographic information was collected by telephone interview. 791 cases and 797 controls provided a DNA sample for genotyping of AHR, and seven single nucleotide polymorphisms (SNPs) were genotyped. Pre-chemotherapy blood samples from 422 cases and 460 controls were utilized for organochlorine measurement. Levels of 14 polychlorinated biphenyl (PCB) congeners and 11 organochlorine pesticide analytes were determined. Logistic regression was used to evaluate the association between AHR SNPs and risk of NHL, lipid-adjusted organochlorine levels and risk of NHL, and interaction between AHR SNPs and organochlorines. We found significant associations with several PCB congeners and other organochlorines. Organochlorines significantly associated with NHL include PCB congeners 99, 118, 138, 153, 156, 170, 180, and 187 as well as pesticides p-HCCH, DDE, hexachlorobenzene, mirex, oxychlordane and trans-nonachlor. The odds ratios for the highest versus lowest exposure categories for these organochlorines ranged from 1.4 to 2.7. The AHRIVS1+4640G/A SNP (rsl 7722841) was found to increase the risk of NHL. The odds ratio for the G/A or A/A allele compared to the G/G allele was 1.3 (95% CI=1.1-1.6). Significant interactions were also found between this allele and the organochlorines PCB 118, oxychlordane, and trans-nonachlor. For oxychlordane the odds ratio for the highest versus lowest exposure categories was 3.2 (95% CI=1.8-5.5) in the G/G genotype, but was not significant in the G/A or A/A genotypes (OR 1.3, 95%CI=0.5-3.4). The strong association observed for various PCB congeners and other organochlorines confirms the increased risk of NHL from organochlorine exposure. Results suggest the role of organochlorines in NHL etiology may involve the AHR pathway.
Low temperature grown ZnO:Ga films with predominant c-axis orientation in wurtzite structure demonstrating high conductance, transmittance and photoluminescence

The Ga doped ZnO films grown at a low substrate temperature ∼50 °C and a low RF power ∼50 W in RF magnetron sputtering possess a predominant c-axis orientation in wurtzite structure with I〈002〉/I〈101〉 ∼ 40 in the XRD pattern; which has been further supported by the most prominent presence of the allowed Raman active A1 (LO) mode. The reduced oxygen vacancies in the ZnO network has been correlated to the enhanced optical transparency while the sharp increase in the presence of metallic Ga in the network identified from the XPS data has been attributed to the increasing electrical conductivity of the films prepared at lower temperature. Associated UV luminescence arises as a result of the typical exciton emission or near-band-edge emission, i.e., due to recombination of photo-generated electrons with holes in the valence band or in traps near the valence band. Highly conducting and optically transparent ZnO:Ga films with a dominant c-axis orientation, demonstrating intense UV-luminescence, are extremely useful for many optoelectronic devices including in solar cells, particularly when prepared at such a low substrate temperature which is most compatible for their fabrication.
Influencia del género del personal de impulso en la construcción del género de la marca

Las empresas, grandes y pequeñas, se enfrentan a nuevos retos en los cuales el saber qué se consume, cómo y dónde, plantean la necesidad de buscar herramientas efectivas que permitan la interacción con el consumidor y conduzcan hacia la elección de sus productos� El impulso es una de tales herramientas, permite llegar al consumidor en el punto de venta e intentar influenciarlo para que escoja los productos que la compañía tiene disponibles en el sitio de compra (Kotler & Keller, 2006)�