Miracle-dz/UniFAR-FTUs huggingface dataset:
Selective adsorption and degradation of rhodamine B with modified titanium dioxide photocatalyst

A new highly selective photocatalyst (RhB-MIP/TiO2) was successfully prepared by surface molecular imprinting technique using rhodamine B (RhB) as template molecule. The adsorption kinetics show RhB-MIP/TiO2 possessed fast adsorption rate, and adsorption behavior followed the pseudo-second-order kinetics. The static binding experiments revealed RhB-MIP/TiO2 displayed strong affinity and high adsorption capacity for RhB. Moreover, the equilibrium adsorption rate of RhB-MIP/TiO2 for RhB can be well fitted by the Langmuir isotherm model. The thermodynamics parameters indicated that the binding system of RhB-MIP/TiO2 was endothermic and spontaneous. Compared with non-imprinted photocatalyst (NIP/TiO2), RhB-MIP/TiO2 exhibited excellent selectivity toward RhB, whose selectivity coefficient for RhB relative to rhodamine 6G (Rh6G) was 2.99. Selective photocatalytic degradation experiments indicated that the apparent rate constant for the photodegradation of RhB over RhB-MIP/TiO2 is 0.0212 min−1, being 216% of that over NIP/TiO2 (0.0098 min−1). Therefore, RhB-MIP/TiO2 exhibited higher photocatalytic selectivity toward RhB. The prepared photocatalyst RhB-MIP/TiO2 has a promising perspective in industrial wastewater treatment. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40890.
On the effects of morphology and molecular composition on the electrical strength of polyethylene blends

The effects of morphology and molecular composition on the electrical strength of blends of linear and branched polyethylenes were investigated. A range of blend systems were considered, in which both the molecular mass of the linear polymer and the comonomer in the branched component were varied. All the blends contained 10% linear polyethylene and 90% branched polymer and, in each system, three crystallization procedures were employed to modify the morphology. Isothermal crystallization at 124 °C generally resulted in compact linear inclusions within a branched matrix; isothermal crystallization at 115 °C produced a space-filling network of open, spherulitic structures; and quenching gave a banded spherulitic morphology. In these systems, the electrical strength, as measured by ramp testing, was dependent on the morphology of the material but was not influenced per se by significant changes in the molecular composition of the blend. The effect of crosslinking was also examined; the inclusion of a network did not, in itself, affect the breakdown strength or the morphology. © 2000 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 38: 2309–2322, 2000
Morphological Stability Analysis of Porous Silicon Formation

Morphological stability analysis for the photoelectrochemical etching of n-type Si is performed, in which the stability of the back-illuminated Si-electrolyte interface is theoretically investigated. Both the transport of holes in the semiconductor and ions in the diffusion layer are considered, together with the electrochemical reaction and surface energy. The roles and the effects of the various parameters, such as applied potential, dopant concentration, current density, illumination intensity, surface ener, and electrolyte concentration, on the morphology of porous silicon are studied. The results show that porous silicon is formed when the dissolution process is controlled by the supply of holes in the semiconductor, and the density of porous silicon is a property which is both material- and process-dependent
Template-free microwave-assisted synthesis of ZnO hollow microspheres and their application in gas sensing

We report a facile template-free microwave-assisted approach to synthesize ZnO hollow microspheres. Field emission scanning electron microscopic and transmission electron microscopic results revealed that the average dimensions of these hollow microspheres were about 4 μm in diameter and 400 nm in thickness of spherical shell. Interestingly, the “hollowness” of these ZnO spheres could be adjusted by varying the microwave irradiation time. Moreover, various distinct ZnO structures could be obtained by simply changing the amounts of trisodium citrate dihydrate. On the basis of these results, a possible formation mechanism was proposed. Gas sensors were fabricated based on as-prepared hollow spheres, and their gas sensing properties were tested for response to ethanol and methanol.
Effect of potential atmospheric warming on temperature-based indices describing Australian winegrape growing conditions

Background and Aims: This paper describes the changes in temperature-based indices used to classify viticultural climates in Australia for three warming scenarios produced by the Commonwealth Scientific and Industrial Research Organisation: Mk3.0 global climate model for the years 2030, 2050 and 2070. Methods and Results: Temperature indices that describe grapevine growing season temperature (GST), ripening period temperature, accumulated biologically effective degree days and growing season length were calculated to produce maps of Australia for each warming scenario. Summary statistics of each index's median and range are presented for each Australian wine region under each warming scenario. The greatest change in GST (above the 1971–2000 mean) was modelled to occur for the Perth Hills region, increasing by 1.0°C by 2030, 1.9°C by 2050 and 2.7°C by 2070. The least change in GST was modelled to occur for the Kangaroo Island region, increasing by 0.5°C by 2030, 0.9°C by 2050 and 1.3°C by 2070. Conclusion: Of the 61 recognised wine regions, a median GST of over 21°C (an indicator of the limit of quality wine grape production conditions) was found for three regions for the period 1971–2000, for eight regions for the 2030 scenario, 12 regions for the 2050 scenario and 21 regions for the 2070 scenario. Significance of the Study: Without appropriate adaptations, some established viticultural regions of Australia may become less suitable for quality winegrape production, whereas regions that were once considered unsuitable for quality winegrape production may become more suitable.
Factors Affecting Retailers Attitude towards Manufacturers: A Study on Unilever

: The study addresses broadly the performance related issues as to what extent is the impact of various factors responsible in terms of retailers for doing business with manufacturers in FMCG (Fast Moving Consumer Goods) sector at Dhaka in Bangladesh. The theoretical framework was designed based on the literature and hence two hypotheses were formulated. The samples were selected by Proportionate Stratified Sampling method. The data were collected by distributing 10 items questionnaires to 50 retailers under different categories in Dhaka. The questionnaire was developed on the basis of exploratory research which were used to measure retailers attitude. Data collected were sorted out and keyed in into SPSS and were analyzed using descriptive statistics to answer the research question. Using the Factor analysis we have extracted four factors and named those factors as Manufacturer’s Production Standard, Managerial Efficiency, Promotional Capability and Customer Solution Capability. The result of the Multiple Regression analysis showed that there is a significant relationship between retailers’ attitude (dependent variable) and the factors determined in the factor analysis (independent variables). Together the independent variables explained 67.9% of the variance of the dependable variables whereas the remaining 32.1% was due to unidentified variables. Therefore the results of the study definitely play a vital role and leave an ever lasting impact to be used in decision making by retailers and the entire company as a whole. Moreover this study can be used as a reference for the future studies to understand the perceptions and opinions of the other channel members in addition to retailers as well.
Structure of Aurasperone C

Aurasperone C (III) shows properties closely related to those of aurasperone B (II) and gave dianhydro compound (V) on hydrochloric acid treatment. Partial methylation of (V) with methyl iodide afforded a monomethyl ether identical with aurasperone A (I). NMR studies, including solvent induced methoxyl shifts, indicate the structure of (III) to be 2,2′-dimethyl-2,2′,5,5′-,8-pentahydroxy-6,6′,8-trimethoxy-7,10′-bi[2,3-dihydro-4H-naphtho[2,3b]pyran-4-one], in which the 8-methoxyl of aurasperone B is replaced by a hydroxyl group.
The near wake structure of a vertical axis wind turbine: Including the Development of a 3D Unsteady Free-Wake Panel Method for VAWTs

A 3D unsteady multi-body panel method is developed that can model arbitrary geometries. The method has been specifically designed so that it can handle the blade-wake interactions and viscous wake effects that are important for modelling a vertical axis wind turbine (VAWT). A systematic validation and verification of the model is presented against theoretical and experimental results. Validation of VAWT wake shapes is given in 2D and 3D by comparison with experimental results using several different techniques (smoke-trail, PIV, and water-tank dye injection). A generalized wake structure for a straight bladed VAWT is explained, and how this structure deforms in time and changes with tip speed ratio and height-diameter ratio. General conclusions of this work are offered in addition to suggested topics for future research.
Evaluation of antibacterial activity of Indian spices against common foodborne pathogens

Summary The present study was designed to evaluate the antimicrobial activity of six Indian spice extracts, namely clove, cinnamon, mustard, garlic, ginger and mint. All of these have been traditionally used in folk medicine, and are still used in the alternative system of health care. The antimicrobial activity of these commonly used Indian spices was tested against three potent foodborne pathogens, namely Escherichia coli,Staphylococcus aureus and Bacillus cereus, which are responsible for many health-related problems. These were tested using paper disc diffusion method, cup method and dilution method (qualitative). The results showed that the extracts of clove, cinnamon and mustard had good inhibitory action at 1% concentration, while garlic showed medium activity. At 3% concentration, complete bactericidal effect was achieved. Ginger and mint showed negligible antibacterial activity against these pathogens at the same concentration.
Nouveaux alcaloïdes isoquinoléiques isolés d'une Lauraceae bolivienne: Aniba canelilla H.B.K.

Eleven benzyltetrahydroisoquinoline alkaloids, with an original substitution pattern, were isolated from the stem bark of Aniba canelilla H.B. K. (Lauraceae). Structural studies of these compounds including 1H, 13C, nOe difference, COSY H–H and C–H, and COLOC nuclear magnetic resonance spectroscopy led to the identification of four benzylisoquinolines, monosubstituted on ring C with an hydroxyl at C-11, (−)-norcanelilline 2, (+)-canelilline 3, anicanine 4, and canelillinoxine 5; two tetrahydroprotoberberines monosubstituted on ring D at C-9, (−)-anibacanine 6 and (+)-manibacanine 8; two tetrahydroprotoberberines monosubstituted on ring D at C-11, (−)-pseudoanibacanine 7 and (+)-pseudomanibacanine 9; and three protoberberines with the same substitution pattern on rings A and D with a methyl substituent at the 8α or 8β position, (−)-α-8-methylpseudoanibacanine 10, (−)-β-8-methylpseudoanibacanine 11, and (−)-α-8-methylanibacanine 12. An examination of all isolated alkaloids suggests the existence of two enzym.
Ion‐assisted etching of silicon by SF6

Sputtering of silicon by 3‐keV Ar+ ions in the presence of a molecular SF6 beam has been investigated by mass spectrometry and time‐of‐flight measurements. At temperatures below 100 K chemical reactions are induced between the silicon and an adsorbed layer of SF6 under ion bombardment leading to newly formed molecular products. The main products formed are SiFx’ (x=0–4) and a small amount of SiSFy compounds (y=0–2). The kinetic energies of these molecular species are for the major part in the 0.1‐eV region which excludes evaporation at substrate temperature to be a dominant mechanism for erosion. An effective sputtering yield for silicon of approximately 15 is obtained.
Effect of botanical extracts against Fusarium oxysporum and Meloidogyne incognita ( J 2 )

The present paper describes the antifungal activity of some plant extracts on the growth of Fusarium oxysporum and Meloidogyne incognita. The leaves of botanical viz. Polyalthia longifolia, Leucaena leucocephala, Butea monosperma, Alstonia scholaris, Psidium guajava, Cassia fistula, Grevillea robusta Jatropha curcas, Peltophorum pterocarpum and Ailanthus altissima was tested in vitro and screened to study the antimicrobial activity and to determine the zone of inhibition of extracts on Fusarium oxysporum and J2 of M. incognita released from the eggs. The number of J2 M. incognita hatching from eggs were found significantly reduced as compared to the control, however P. guajava were found the most effective extracts against hatching of juvenile with 100% inhibition. Further, on testing the fungus with the botanicals, Polyalthia longifolia extract showed the best inhibitory effect against F. oxysporum with 37.73% reduction as compared to the control.
In-Situ Thermoreversible Gelation of Block and Star Copolymers of Poly(ethylene glycol) and Poly(N-isopropylacrylamide) of Varying Architectures

We report the development of a new gelation mechanism and a new family of polymers that self-assembles to form gels in a thermoreversible fashion. The polymers are block or star copolymers with a central hydrophilic poly(ethylene glycol) (PEG) segment (A) and temperature responsive poly(N-isopropylacrylamide) (PNIPAAm) terminal segments (B). Copolymers of various architectures, AB, A(B)2, A(B)4, and A(B)8, were synthesized to investigate the structures and properties relationship. At 5 °C, the viscosities of 20 wt % solutions were between 700 and 950 cP, and they could be easily injected through a 25 G needle. Upon warming to body temperature, A(B)2, A(B)4, and A(B)8 formed a strong associative network gel with aggregates of PNIPAAm segments acting as physical cross-links, whereas AB formed a weaker gel by micellar packing and entanglement. The values of elastic modulus, loss tangent, and yield strength were 1000−2500 Pa, 0.24−0.62, and 200−860 Pa, respectively. The gelation kinetic was fast; a typical ge.
Control of sulfate reduction by molybdate in anaerobic digestion

Control of sulfate reduction by adding molybdate was investigated to enhance the methane production under batch and continuous operation in the anaerobic digestion of a sulfate-rich lysine wastewater. In phase 1 of the continuous operation, four anaerobic filters were fed with the lysine wastewater and then added with molybdate at 1,3,5 and 10 mM just after methane producing bacteria (MPB) were completely inhited by H2S produced by sulfate reducing bacteria (SRB). In phase 2, three anaerobic filters were operated with continuous or intermittent addition of 3 mM molybdate from the beginning of operation, including one with no molybdate as a control. Batch experiments revealed that the sulfate reduction was strongly inhibited and finally ceased by adding 3 mM or more of molybdate, resulting in great enhancement of the methane production. In phase 1 of the continuous experiments, all reactors showed the cessation of the methane production when the content of H2S reached 9–10 % in biogas, but the MPB activity was gradually recovered after initiating the molybdate addition at 3 or 5 mM. The 10 mM dosage of molybdate, however, had an inhibiting effect to MPB as well as SRB, resulting in the accumulation of acetate within the reactor. In phase 2, the control reactor continued to decrease the methane production, and a methane conversion rate was only 3 % in the control, while 35 and 10 % in continuously-added and intermittently-added reactors, respectively. Thus, it was confirmed that the MPB activity was greatly enhanced under control of the SRB activity by the continuous addition of molybdate. Comparing phase 2 with phase 1, addition from the start-up of the process is considered more effective than addition after the methane production dropped in the control of the sulfate reduction by molybdate.
Evaluation of Thin ZnS(Ag) Scintillator Sheet for Alpha-ray Contamination Monitoring during Decommissioning

Generally a great quantity of waste was generated during the decommissioning of nuclear facilities. The contamination level of the decommissioning wastes must be surveyed for free release. Among the radiation detectors, alpha-ray contamination measurement has been mainly used a detector consisted with a silver activated zinc sulfide (ZnS(Ag)) scintillator and photomultiplier tube (PMT). In a previous study [1] a thin ZnS(Ag) sheet were prepared to detect an alpha-particle. The sheet was composed of a transparent polymer sheet and ZnS(Ag) layer. The base polymer sheet was cast from a polysulfone solution using casting method and then solidified. And the ZnS(Ag) scintillator was adhered onto the base sheet using screen printing method. In this study the basic characteristics of the thin ZnS(Ag) scintillator sheet were investigated and the alpha-ray detection abilities were estimated for various preparation conditions.
Comparison of efficacy safety of olazepine and risperdone in the treament of first episode schizophrenia

目的 探讨再普乐和维思通治疗首发精神分裂症的临床疗效及安全性. 方法将64例符合CCMD-3的精神分裂症患者随机分为两组,分别给予再普乐和维思通治疗8周,以阳性和阴性症状量表(PANSS)、简明精神病评定量表(BPRS)、临床总体印象量表(CGI)进行进行疗效评定,以不良反应量表(TESS)进行副作用评定. 结果58例患者完成治疗,以PANSS减分率评定疗效,再普乐组总有效率83. 87%,维思通组81. 48%,两组之间治疗中及治疗结束时各次评定疗效比较均无显著差异;再普乐组总的不良反应发生率为37. 50%,维思通组的发生率是59. 38%,两组之间差异无显著性(P＞0.05). 结论再普乐治疗精神分裂症的疗效与维思通相似,但两药的个别副反应发生率有不同。
Design, synthesis, preliminary pharmacological evaluation, and docking studies of pyrazoline derivatives

Ten derivatives of N1 substituted/unsubstituted 5-(4-chlorophenyl)-3-(2-thienyl) pyrazoline were synthesised from chalcone-like intermediate and substituted phenyl hydrazines, hydrazine hydrate, and semi/thiosemicarbazide. The chemical structure of compounds was confirmed by means of IR, 1H NMR, mass spectroscopy, and elemental analysis. The antidepressant and anticonvulsant activities were investigated by Porsolt’s behavioural despair test (forced swimming) and maximum electroshock seizure test, respectively. Rota-Rod test was performed to assess any probable changes in motor coordination induced by the test compounds. Four compounds (IId, IIg, IIi, and IIj) exhibited good activity profile against depression and docking studies confirmed their consensual interaction with monoamine oxidase A. In addition, compounds IIc and IIe showed protection against MES-induced seizures.
Wind profiling features and atmospheric dynamics: A few first observations from ST Radar of Gauhati University

The windfeatures in fine spatio-temporal resolutions covering lower troposphere to beyond tropopause, are important inputs for understanding atmospheric dynamics associated with weather and climate. The extraction of information from such features requires complex analysis processes because of involvement of wide dynamical meteorology. Therefore, for study of this type, it is essential to have special atmospheric probing set up along with embedded state of art signal analysis tools, where Stratospheric Tropospheric (ST) Radar proves to be one of the most ideal facility that can provide high resolution wind profiling data covering this defined range. The paper thus attempts to understand the physics and dynamics of the atmosphere associated with complex weather environment of the North East part of India by analyzing wind profiling characters received from the ST Radar, installed at Gauhati University (26 ̊N, 91. ̊ E), that offers wind velocity as detailed as 0.1 m/s (in vertical mode) with altitude resolution of 150 m. Starting with the calibration of Radar derived wind parameters with Radiosonde and satellite observed data; the analysis here is directed to assess the reliability of wind speed and directions obtained from this setup. The special events like precipitation and thunder time modulations of wind components are also presented and possible system physics for development of such situations has been focused.
Catalytic Oxidation of Glucose on Bismuth-Promoted Palladium Catalysts

Water solutions of glucose (1.66 mol liter−1) were oxidized with air at 313 K on palladium catalysts supported on active charcoal. High gluconate yields (99.3%) were obtained in the presence of bismuth-promoted catalysis. Bismuth was deposited via a surface redox reaction on Pd/C catalysts containing 1- to 2-nm Pd particles. A STEM-EDX study showed that bismuth atoms are selectively and homogeneously deposited on the palladium particles. The catalyst can be recycled without loss of activity and selectivity. Bismuth was not leached from the catalyst during reaction and recycling. Bismuth adatoms prevent oxygen poisoning of the palladium surface by acting as a co-catalyst in the oxidative dehydrogenation mechanism. It was determined by calorimetric measurements that oxygen should adsorb preferentially on bismuth rather than on palladium.
Inflation Targeting Flexibility: The CNB's Reaction Function under Scrutiny

This note deals with the issue of inflation targeting flexibility from the perspective of the Czech National Bank and other relevant central banks. We discuss possible ways of increasing the flexibility of the CNB's monetary policy, namely narrowing the targeted and communicated measure of inflation, prolonging the policy horizon, lowering the aggressivity of the rule to deviations of expected inflation from the target, increasing the smoothing of interest rates and responding to real economic developments. Our simulations show that these adjustments in the CNB's reaction function would slightly improve the stability of real output, while at the same time leading to large costs in terms of less stable and less anchored inflation.
Toward reliable density functional methods without adjustable parameters: The PBE0 model

We present an analysis of the performances of a parameter free density functional model (PBE0) obtained combining the so called PBE generalized gradient functional with a predefined amount of exact exchange. The results obtained for structural, thermodynamic, kinetic and spectroscopic (magnetic, infrared and electronic) properties are satisfactory and not far from those delivered by the most reliable functionals including heavy parameterization. The way in which the functional is derived and the lack of empirical parameters fitted to specific properties make the PBE0 model a widely applicable method for both quantum chemistry and condensed matter physics.
Static and transport properties of symmetric and asymmetric electrolytes in micropores at fixed surface potential

We study some static and kinetic properties of model electrolyte solutions, confined by two charged plates, for example, ionic exclusion, the force balance between the two plates, and the electrokinetic phenomenological Onsager’s coefficients Lmn. The three point extension hypernetted chain/mean spherical integral equation (TPE‐HNC/MSA) was solved to obtain the ionic concentration profiles of a confined restricted primitive model electrolyte and the plate–plate force. We compare the results of this theory with the classically used modified Gouy–Chapman (MGC) point ion theory. It is shown that the properties of the system depend strongly on the charge of the counterions and, hence, the asymmetric 2:1 and 1:2 salts give results similar to those of the symmetric 1:1 and 2:2 salts, respectively. The MGC theory fails to predict the force oscillation between repulsive and attractive and other important features that appear for ultranarrow pores. These discrepancies are enhanced by the presence of doubly charged.