Miracle-dz/UniFAR-FTUs huggingface dataset:
Preparation and Humidity-Sensitive Properties of Graphene Oxide in Different Oxidation Degree

Based on the various oxygenic functional groups and huge specific surface area of graphene oxide,the humidity sensitive properties of graphene oxide with different oxidation degree has been researched.The graphite oxide samples with different oxidation degree were prepared by modified Hummers method.Then the samples were dispersed in water by ultrasonication to form homogeneous graphene oxide dispersions,and the humidity sensing elements of thin graphene oxide film were prepared.Structural and spectral analysis for the experiment process samples were carried out by X-ray diffraction,scanning probe microscopy,infrared spectrum,Raman spectrum and X-ray photo electron emission microscopy.The results shows: the basal spacing of graphite oxide is about 0.9 nm.With the increasing of oxidation degree,diffraction peak of graphite in graphite oxide were gradually disappearing,the crystallite size of graphite phase decreasing,O/C ratio increasing and the degree of oxidation going up.Monolayer graphene oxide with the thickness of 1.3 nm more or less can be dispersed in water.Functional groups of OH,C-O-C,C=O and COOH combine with graphene oxide,and the contents of them gradually increasing with the rising of oxidation degree.The response time of the humidity sensors is about 3 seconds,the sensitivity approaches to 99%. In the relative humidity of 11.3%-93.6%,the resistance of elements significantly reducing with increasing of humidity,logarithmic resistance of graphene oxide elements with higher degree of oxidation is linear with relative humidity.The higher the oxidation degree was,the greater the element′s sensitivity was,the shorter the response time was.
The effect of ICT investment, ICT governance mechanisms, boards with diverse ICT expertise and ownership structures on firm performance

This thesis examined the effects of ICT investment, ICT governance mechanisms, boards with diverse ICT expertise, and ownership structures on firm performance of Malaysian technology sector in the Malaysian Public Listed Companies from 2010 until 2014. This study employed the balanced panel data for a sample of 33 listed companies, with 165 observations. A dynamic model was built and estimation was carried out by using the System Generalized Method of Moments (SGMM). As predicted, ICT investment incurred in the current year displayed a significantly negative impact upon ROE. Even though ICT investment failed to exhibit a significantly positive effect upon firm performance during the initial period of spending, the findings portrayed that ICT spending in current year had the ability to positively influence Tobin’s Q. In fact, ICT investment incurred in the lag of a year showed significantly positive impact on Tobin’s Q. In terms of ICT governance mechanisms, the presence of ICT governance committee had been found to have a significantly negative effect on ROA, ROE, and Tobin’s Q, whereas the presence of ICT senior management showed significantly positive effect upon Tobin’s Q. The boards with ICT industrial experiences displayed a positive effect upon ROA, ROE, and Tobin’s Q, but a significantly negative effect was discovered for boards with ICT professional qualifications on Tobin’s Q. As for ownership structures, managerial ownership exhibited significantly positive effect on Tobin’s Q, but negatively on ROA. Furthermore, the government and foreign ownerships were found to have significantly positive effect on ROA. Hence, the findings from this study are indeed beneficial not only for all stakeholders, including policymakers, regulators, and academics; but also for board of company and management level in ascertaining that their ICT implementation is properly governed under appropriate ICT standards.
METABOLISM OF Bacillus subtilis ON CRUDE OILS

Cells of Bacillus subtilis SP4 isolated from oil reservoir were gram positive, motile rod, and formed spores. The strain SP4 grew at extensive temperature range, the highest growth temperature was 58 ℃, and the optimal one was 32 ℃ to 48 ℃. It could grew in 7% NaCl and at pH= 5.5 ～ 8.5 . SP4 could assimilate some carbon sources and grew facultatively, producing volatile fatty acid, organic acid, ketone, ether, ester and biosurfactants etc. It could convert and degrade aromatics, nonhydrocarbon, asphaltene, organic sulfur compounds and organic nitrogen compounds in different crude oils, and decrease the content of heavy fractions in crude oils, improving the physical and chemical properties of them. It will be beneficial to increase oil recovery if the strain is applied in oil fields.
Experimental Study on Formation of Carbon Dioxide Hydrate in a Water Spraying Reactor

Experiments of CO2 hydrate formation were carried out in a water spraying reactor.The growth process was visually observed and photographed.Crystallization supersaturation was employed as the driving force to investigate the growth characteristics of CO2 hydrate.The results indicate that the amount of generated CO2 hydrate increases with the rising of driving force.The lower the system temperature is,the more the CO2 hydrate forms.The growth rate of CO2 hydrate is 0.531～9.53 mmol/s,which is in accordance with the reported result from static reactor in the literature,implying that the function of water spraying reactor to promote the growth of CO2 hydrate needs to be improved.Due to low driving force and incomplete hydrate formation,the obtained gas storage rate of CO2 hydrate is 14～24 m3/m3.
Herbicidal effect in relation to the accumulation of macroelements and its regulation by regulators of polyamine synthesis.

Stress effects of triazine herbicide on cumulating of important macroelements (phosphorus, potassium, calcium and magnesium) into the grain of barley variety Kompakt, as well as the elimination of its negative effect through the addition of regulators of polyamine synthesis (γ-aminobutyric acid and propylenediamine) were investigated in pot trial. These morphoregulators are degrading products of polyamines and hypothetically after foliar application they should support their biosynthesis which increased level act against stress in plants. Application of the herbicide alone in comparison to control variant reduced the contents of all mentioned macroelements in grain of barley and also in variants, where the mixtures of herbicide with regulators of polyamine biosynthesis were applied, also the values of contents of all macroelements (except of magnesium) in barley grain were reduced (in comparison to this variant). It could be summarized that the presence of regulators in mixtures with triazine herbicide in comparison to control variant had not positive effects on contents of these biogenic elements in grain. By the comparison of variant with the applied herbicide with variants, where also regulators of polyamine synthesis were applied, there was the most positive influence of these mixtures of morphoregulators on statistically non-significant accumulation of phosphorus into generative organs of spring barley and in the case of positive accumulation of magnesium into these plant tissues there was statistically significant relation only after application of mixtures of herbicide with propylenediamine. Positive influence on accumulation of calcium was evaluated only after using of mixtures of herbicide with propylenediamine (statistically significant relation was recorded at the dose 29.6 g.ha -1 ).
Texture-induced hydrophobicity, and some collective effects in granular matter and economics

Fog or hot water can destroy the superhydrophobic properties of a textured surface owing to the condensation inside the texture. However, it was recently shown that such surfaces covered with cones at a scale of hundred nanometers could resist fog: condensed droplets can be ejected during their coalescence. We first experimentally show by electronic microscopy that a conical texture enables water drops to remain in a “fakir state”, even at a very small scale. We then studied different families of cone-textured surfaces by varying the spacing and the texture height. At the nanoscale, we showed that the texture size has a low influence on the antifogging efficiency whose limits rather lie in the water properties themselves, especially its viscosity. At the microscale, we described new situations where spontaneous ejection of condensed drops occurs despite a local trapping of water. We also studied the trajectory of expelled drops on such surfaces and confirmed that viscous effects play a major role in their ballistics. Finally, we focused on the ability of superhydropho- bic surfaces to repel hot water, a challenging situation for which we identified two independent recipes. In the second part of the thesis, we studied the ability of wetted fibers to capture dust. We showed that the quantities of captured particles is only influenced by the quantity of oil deposited on the fiber and not by its configuration (film or drop) on the fiber, unlike the growth kinetics of the aggregate where large differences are observed between the two configurations. The last part of the thesis focused on the Slutsky equation, a classical equation encountered in microeconomics. We described how the Slutsky matrix is modified when challenging classical economics hypotheses such as irrationality, interactions between goods or agents’ heterogeneity, and how it exhibits surprising features not predicted by consumer choice theory. The three parts can be addressed independently.
Research progress on chemical constituents and medical functions in plants of Bletilla Rchb. f.

Phytochemical investigation indicates that plants of Bletilla Rchb. f. have many components with different chemical structures, including bibenzyl, dihydrophenanthrene, stilbene, biphenanthrene, and quinone. These compounds were found to have potent bioactivities, such as hemostasis, antitumor, sterilization and anti-inflammation, healing, and growth promotion of cells. This review focuses on the chemical structures of constituents and medical functions of genus, Bletilla Rchb. f. It would provide a good reference to further utilize this medicinal plant.
Composition and mutagenicity of particle-sized fractions from urban particlate matter in Guangzhou City

The particulate samples were collected from the atmosphere in LiWan district (Guangzhou) by using Andersen model SA235 high volume cascade impactor. The aerosol particles were separated into six fractions (five stages and a backup filter). The concentrations of total polycyclic aromatic hydrocarbons (PAHs) were measured by GC-MS, and the mutagenicity of urban particulate matter was measured by using the standard plate incorporation test on Salmonella typhimurium. The results showed that, fourty-two individual PAHs were identified, including 15 kind of priority controlled PAHs which account for more than 60% of total PAHs in the samples. Furthermore, the concentrations of some four-ring and all more than five rings PAHs increased as the particle size decreased. The Ames test results showed that all the extracts from various size airborne particles appeared the mutagenicity in the condition with or without S9. And the finer the particulate matter was, the greater the mutagenicity was. Moreover, similar mutagenic potency (mutagenicity per μg and per m~3) trend also existed. Both indirect and direct acting mutagenicity were also observed. There were more indirect-acting mutagens in 1.5～10 μm particulate matter, and more direct-acting mutagens in 0.95～1.5 μm, 0.49～0.95 μm and 0.49 μm particulate matter.
Genetical Studies In Okra

early yield, yield components, and the two t-£q\t̂ êSista"nce. The presence of genotypes x environments and hybrids x environments interactionswas observed for all the characters except for days to flower and root-knot index. HRB-55, Sel,-2, KS-404 and KS-312 among females; Pusa Sawani and HRB 9-2 among males and KS-312 x HRB 9-2, Padra 18-6 x HRB 9-2, IC-169354 x HRB 9-2 and Red-1'Long x Dafftari-9 among hybrids expressed the highest mean fjUit urtd yield on pooled basis/̂ were also superior for many yield components and resistant/tolerant to YVMV disease and root-knot nematodes. Highly significant and high magnitude of heterosis was observed for all the characters but the hybrids varied in magnitude of heterosis for different characters over environments. In general, superior parents gave superior hybrids and higher magnitude of heterosis in hybrid combinations. The highest magnitude of heterosis was observed for early yield per plant, number of f"̂ uits per plant, ftult yield per plant, number of branches per plant and YVMV incidence in that order, A number of crosses showed desirable/significant negative heterosis for days to flower, root-knot index and YVMV incidence. The crosses, KS-312 x HRB 9-2, Padra 18-6 x HRB 9-2, IC-169354 x HRB 9-2 and Red-1'Long x Dafftari-9 exhibited highest magnitude of standard heterosis for fmit yield on pooled basis and were also relatively high in individual environments. The analysis of variance for combining ability revealed that the nature and magnitude of various estimates,
Selective Additives for Improvement of Gasoline Octane Number

High octane blend base gasoline stocks are reformulated from 30% LSRN, 45% Reformate and 25% Powerformate on volume basis. ASTM standard and IROX 2000 analysis are performed to test blend stocks sample. Different additive types are used to improve octane number. These additives are tetraethyl lead, methylcyclopentadienyl manganese tricarbonyl; methyl alcohol, ethyl alcohol, iso-propanol, n-butanol, sec-butanol, tertiary butyl alcohol, tert-amyl alcohol, active amyl alcohol, iso-pentyl alcohol, isobutyl carbinol, benzol ,telone, xylene, amino benzene, N-N-dimethyl aniline, dimethyl ketone, and ethyl methyl ketone. Comparison is made between significant individual RON gains measured by standard CFR test-engine. The results indicated that the combined iso-propanol, oxinol (50/50 blend of methanol and TBA), aniline, and xylene with hydrocarbons fraction content in the gasoline base pool is better to ensure high RON. The results showed that a mixture of 20/54/10/16 of blend aniline/ iso-propanol/ oxinol/ xylene respectively, led to an increase in RON of gasoline blend pool from 84.5 to 96 RON, or 11.5% RON gain.
Effect of temperature on the solar cell characteristics

The paper tested and analyzed silicon solar cell output characteristics under deferent temperature.In no light conditions,solar cells can be thought of as a PN junction.For a certain of extra voltage positive current is enlarged with the rise of temperature.With high pressure xenon lamp simulation the sun light,the light characteristics of solar cells are measured under different temperature.When the temperature went up short-circuit current Isc rised marginally,the open voltage Voc reduced significantly,fill factor decreased,and photoelectric conversion efficiency obviously decreased.
Effect of different N and P levels on availability of zinc, copper, manganese and iron under arid conditions

Effect of different levels of N and P on availability of Zn, Cu, Mn and Fe under arid conditions was studied. Results showed that the content of available P increased in loamy soil by application of N and P under the content of soil water (11%～14%), and content of soil available P decreased with the depth of soil increase. Application of P could increase the available Zn, Cu and Mn contents, on the contrary, for iron. The coefficient of correlation was 0 65, and -0 63 between available P and Zn , and available P and Fe, respectively.
HPLC simultaneous determination of stilbene glycoside and its metabolite in rat bile liquid

Objective:To develop an HPLC method to assess the concentrations of stilbene glycoside and its metabolite in rat bile and identify the metabolic pathway of stilbene glycoside in rat.Methods:After a single oral administration at a dose of 60 mg·kg-1,the bile of rat was collected.After methanol(10 μL) was added into 200 μL bile or diluted bile,and then centrifuged at a high speed for 10 min,the supernatant was injected into the liquid chromatography system to determine the concentrations of stilbene glycoside and its metabolite.Dikma Diamonsil C18 column(250 mm×4.6 mm,5 μm) was used.The mobile phase was composed of acetonitrile and 0.1%(v/v) acetic acid solution(0-10 min,15:85;15-23 min,25:75;25-30 min,100:0). The flow rate was 1.0 mL·min-1 and the column compartment was kept at the temperature of 30 ℃,320 nm was chosen to record chromatograms.Results:Calibration curves were generated over a concentration range of 12.0-0.8 μg·mL-1 for stilbene glycoside and 110-0.9 μg·mL-1 for the metabolite,respectively.Intra-and inter-day RSDs were less than 7.0%,and relative errors were ranged within ±4.5%. Extraction recoveries of stilbene glycoside and metabolite were all above 99.1%. Mean biliary accumulated excretion of stilbene glycoside and metabolite for 24 h after administration were(0.084±0.04)% and(36.87±12.94)%,respectively.Conclusion:This specific,sensitive and precise method is suitable for the determination of stilbene glycoside and its metabolite in rat bile.Biliary excretion should be the main excretion route of stilbene glycoside in the form of its metabolite.
Correlation of wood crystallinity with chemical composition and annual ring characteristics of slash pine trees

Crystallinity of slash pine (Pinus elliottii Englem.) wood was measured by X-ray diffraction (XRD) technique,and the correlation of wood crystallinity with annual ring characteristics ( ring width,earlywood width,latewood width,latewood percentage and distance to the pith ) and chemical composition ( α-cellulose and lignin) was investigated.Wood crystallinity was significantly correlated with ring width,earlywood width,latewood width,and contents of α-cellulose and lignin.Compared with the regression model of wood crystallinity based on either annual ring characteristics or chemical composition,the data was bested fit by the regression model consisting of both annual ring characteristics and chemical composition according to the adjusted R2.These results suggest that wood crystallinity can be estimated by tree annual ring characteristics and chemical composition,and on the other hand wood crystallinity can also be an important index to evaluate the growth traits of trees and wood properties.
Manufacture, Concentration, and Functionality of Micellar Casein Concentrate

viii CHAPTER 1: REVIEW OF LITERATURE 1-26 Composition of milk 1 Milk proteins 2 Caseins 3 Theories of Casein Micelle Assembly 7 MCC Composition and Physiochemical Properties 9 Gelation of Foodstuffs 12 Rheology of Foodstuffs 13 Production of MCC 15 Drying and High Heat Treatment on Physiochemical properties of MCC 18 Evaporation Methods 18 Centrifugal Film Evaporators 21 Wiped Film Evaporators 24 Heat Exchanger Surface Fouling 25 Objectives 26 CHAPTER 2: EVALUATION OF A CENTRITHERM EVAPORATOR FOR CONCENTRATING MICELLAR CASEIN 27-33 Introduction 28 Objectives 28
Preliminary Study of Phytotoxic Metabolites with Herbicidal Activity Produced by Nimbya alternantherae

Nimbya alternantherae could produce two kinds of phytotoxins (phytotoxin A and phytotoxin B). Phytotoxin A and phytotoxin B causes the leaf blight, and leaf spot of alligatorweed respectively. The pathogen produced different kinds of phytotoxin in different liquid medium. In modified Fries basic media 3 it only produced phytotoxin A, and in modified Czapek and Richard media it only produced phytotoxin B, but in PS, PD and modified Fries 3 basic substrate, the pathogen could produce both of them. The temperature 25～40? ℃,shocking(120? r/min)and pH 7～8 favored the production of phytotoxin A. Phytotoxin A was a metabolite smaller than 10000 dalton with weak polarity and heat unstability, and lost activity after boiling for 10? min.
Factores que inciden en la permanencia de las pymes en el municipio de Navojoa, Sonora.

En el campo de las PyMEs, se han generado estudios centrados en su gestion interna y su entorno laboral abarcando muchos aspectos de la vida de las mismas en relacion con las variables Clima Organizacional, Motivacion y Liderazgo con el fin de su permanencia y crecimiento en las economias de los paises. Actualmente, se tiene una problematica en cuanto a la permanencia y desarrollo de las PyMEs dentro del contexto especifico del municipio de Navojoa, Sonora y siendo conscientes de que el exito de toda organizacion, implica un esfuerzo adicional en la gestion interna de las empresas en aspectos tales como Clima Organizacional, Motivacion e Liderazgo, las PyMEs en particular requieren apoyos adicionales, tanto del gobierno como de investigaciones relacionadas con sus caracteristicas particulares, para establecer y llevar a cabo estrategias de competitividad dentro del ramo y entorno en queoperan. Este articulo revela piezas teoricas para el avance de la investigacion doctoral.
An assessment of thermal preference of two species of Knob-tailed Geckos, Nephrurus levis and N. laevissimus, at Uluru Kata-Tjuta National Park

Nocturnal lizards are often active at temperatures that are sub-optimal for physiological functioning, a phenomenon that has been referred to as the ‘nocturnal paradox’. The purpose of this study was to investigate the general habitat and thermal preference of two species of nocturnal gecko in the genus Nephrurus with a focus on differences between preferred body temperatures determined under laboratory conditions and those measured in animals at the time of field collection. The Smooth Knob-tailed gecko (Nephrurus levis) and the Pale Knob-tailed Gecko (N. laevissimus) inhabit the desert environment of Uluru Kata-Tjuta National Park in the Northern Territory of Australia. Habitat preferences were determined by documenting capture locations for these species while thermal preferences were determined using laboratory-based thermal gradients. Analysis of habitat use demonstrated a significant difference in habitat preference between the two species. Nephrurus levis was most often in Spinifex sandplain and mulga shrubland and N. laevissimus was most often found around sand dune habitats. Fieldactive body temperatures of both species ranged from 14.5 °C to 32.2 °C and were significantly correlated with air and ground temperature at the time of capture. The thermal preference (Tpref) of N. levis (mean day Tpref mid = 29.1 °C and mean night Tpref 24 = 28.2 °C, n = 19) and N. laevissimus (mean day Tpref mid = 29.5 °C and mean night Tpref 24 = 27.8 °C, n = 27) were not significantly different, although both species exhibited significantly higher daytime and night-time preferred body temperatures than body temperatures observed in the field. Body size did not affect thermal preference for either species. As such, the thermal preferences of these species support the concept of the nocturnal paradox. Additionally, it has been suggested that the characteristic swollen tail tip displayed by all Nephrurus species may play a role in assessing the thermal environment. While not investigated extensively here, combined data for both species demonstrated that individuals oriented their tail toward the heat source in thermal gradients significantly more than expected if orientation were random. Northern Territory Naturalist (2019) 29: 40-53 Research Article