Miracle-dz/UniFAR-FTUs huggingface dataset:
EFFECT OF DIFFERENT NITROGEN SOURCES ON RADIAL GROWTH AND DRY MYCELIAL WEIGHT OF PLEUROTUS DJAMOR (FR.) BOEDIJN

The research work was carried out at the Mushroom Research Laboratory, Department of Plant Pathology, Indira Gandhi Agricultural University, Raipur. The pure culture of Pleurotus djamor, was procured from Department of Microbiology, Rajendra Agricultural University, Samastipur, Bihar. The results of the investigation indicate that among the different nitrogen sources tested none could promote the growth of P. djamor on solid media. Among the nitrogen sources tested ammonium sulphate, urea, L-asparagine and potassium nitrate were at par with unsupplemented control.
Thermodynamic analysis of high‐ash coal‐fired power plant with carbon dioxide capture

A thermodynamic analysis of a 500‐MWe subcritical power plant using high‐ash Indian coal (base plant) is carried out to determine the effects of carbon dioxide (CO2) capture on plant energy and exergy efficiencies. An imported (South African) low‐ash coal is also considered to compare the performance of the integrated plant (base plant with CO2 capture plant). Chemical absorption technique using monoethanolamine as an absorbent is adopted in the CO2 capture plant. The flow sheet computer program “Aspen Plus” is used for the parametric study of the CO2 capture plant to determine the minimum energy requirement for absorbent regeneration at optimum absorber–stripper configuration. Energy and exergy analysis for the integrated plant is carried out using the power plant simulation software “Cycle‐Tempo”. The study also involves determining the effects of various steam extraction techniques from the turbine cycle (intermediate‐pressure–low‐pressure crossover pipe) for monoethanolamine regeneration. It is found that the minimum reboiler heat duty is 373 MWth (equivalent to 3.77 MJ of heat energy per kg of CO2 captured), resulting in a drop of plant energy efficiency by approximately 8.3% to 11.2% points. The study reveals that the maximum energy and exergy losses occur in the reboiler and the combustor, respectively, accounting for 29% and 33% of the fuel energy and exergy. Among the various options for preprocessing steam that is extracted from turbine cycle for reboiler use, “addition of new auxiliary turbine” is found to be the best option. Copyright © 2011 John Wiley & Sons, Ltd.
Secondary Ion Mass Spectrometry Bias on Isotope Ratios in Dolomite–Ankerite, Part I: δ18O Matrix Effects

We document the development of a suite of carbonate mineral reference materials for calibrating SIMS determinations of δ18O in samples with compositions along the dolomite–ankerite solid solution series [CaMg(CO3)2–CaFe(CO3)2]. Under routine operating conditions for the analysis of carbonates for δ18O with a CAMECA IMS 1280 instrument (at WiscSIMS, University of Wisconsin‐Madison), the magnitude of instrumental bias along the dolomite–ankerite series decreased exponentially by ~ 10‰ with increasing Fe content in the dolomite structure, but appeared insensitive to minor Mn substitution [< 2.6 mol% Mn/(Ca+Mg+Fe+Mn)]. The compositional dependence of bias (i.e., the sample matrix effect) was calibrated using the Hill equation, which relates bias to the Fe# of dolomite–ankerite [i.e., molar Fe/(Mg+Fe)] for thirteen reference materials (Fe# = 0.004–0.789); for calibrations employing either 10 or 3 μm diameter spot size measurements, this yielded residual values ≤ 0.3–0.4‰ relative to CRM NBS 19 for most reference materials in the suite. Analytical precision was ± 0.3‰ (2s, standard deviations) for 10‐μm spots and ± 0.7‰ (2s) for 3‐μm spots, based on the spot‐to‐spot repeatability of a drift monitor material that ‘bracketed’ each set of ten sample‐spot analyses. Analytical uncertainty for individual sample analyses was approximated by a combination of precision and calibration residual values (propagated in quadrature), suggesting an uncertainty of ± 0.5‰ (2s) for 10‐μm spots and ± 1‰ (2s) for 3‐μm spots.
Effect of channel thickness, electrolyte ions, and dissolved oxygen on the performance of organic electrochemical transistors

We investigated the device characteristics of organic electrochemical transistors based on thin films of poly(3,4-ethylenedioxythiophene) doped with poly(styrene-sulfonate). We employed various channel thicknesses and two different electrolytes: the micelle forming surfactant cetyltrimethyl ammonium bromide (CTAB) and NaCl. The highest ON/OFF ratios were achieved at low film thicknesses using CTAB as the electrolyte. Cyclic voltammetry suggests that a redox reaction between oxygen dissolved in the electrolytes and PEDOT:PSS leads to low ON/OFF ratios when NaCl is used as the electrolyte. Electrochemical impedance spectroscopy reveals that doping/dedoping of the channel becomes slower at high film thickness and in the presence of bulky ions.
Measuring anaerobic sludge digestion and growth by a simple alkalimetric titration

Organic acids produced in the anaerobic digestion of waste-water sludges tend continuously to depress pH below a point where the acids can be converted to methane. As a result, a large buffering capacity is required to maintain pH between 6.7 and 7.4, which allows efficient operation. Present tests to measure this buffer capacity are inadequate. The present research proposes a simple but adequate test that will provide plant operators with accurate information on anaerobic digester efficiency, as well as considerable long-range insight into digester operation - it would seem that an alkalimetric titration to pH 5.75 can be used routinely to monitor laboratory and actual anaerobic digester performance with a high degree of confidence. The simplicity of the test should encourage many operators to pay more attention to digester performance and, therefore, result in improved waste water treatment efficiency. (Refs. 7).
SIMULTANEOUS DETERMINATION OF DOCOSAHEXAENOIC ACID AND EICOSAPENTAENOIC ACID BY LC-ESI-MS/MS FROM HUMAN PLASMA

A sensitive and rapid method based on liquid chromatography/tandem mass spectrometry (LC/MS/MS) with simple single step protein precipitation has been developed and validated for the quantitative determination of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) in human plasma. After addition of internal standard to human plasma, samples were extracted by simple protein precipitation using acetonitrile as the precipitating agent. The extracts were analyzed by HPLC with the detection of the analyte in the multiple reaction monitoring (MRM) mode. This method for the simultaneous determination of DHA and EPA is accurate and reproducible, with limits of quantitation of 50.00 ng/mL in plasma. The standard calibration curves for both DHA and EPA are linear (r > 0.99) over the concentration ranges 50.00–7498.50 ng/mL in human plasma, respectively. The intra- and inter-day precision over the concentration range for DHA and EPA are less than 10.16 and 6.72 (relative standard deviation, %RSD), and accuracy is between 91.17–104.74% and 95.81–108.33%, respectively.
Capillary Assembly of Anisotropic Particles

My research is in the field of interfacial phenomena. Since all materials are bounded by surfaces or interfaces, the ability to manipulate or tune interfacial properties is broadly important. I am interested in particle-laden fluid interfaces where surface tension plays a dominant role. In particular, I have investigated the effect of particle shape in the interaction and assembly of non-spherical microparticles at interfaces between immiscible fluids, such as the air-water or oil-water interfaces. In the first study, I showed experimentally that geometric features on the surface of the cylindrical microparticles, specifically the sharp edges, have a strong influence on both the capillary interactions and the micromechanics of the particle assembly. In the second study, I used creatively shaped particles to model the effect of surface roughness on the particle and carried out the first numerical and experimental demonstration of near-field capillary repulsion. Lastly, I demonstrated experimentally and analytically that on a curved interface with a gradient along one of the principal axes of curvature, both isotropic and anisotropic microparticles migrate to the region of high curvature. In addition, anisotropic microparticles conform to either an azimuthal or a radial orientation depending on their aspect ratios. My research provides fundamental knowledge for understanding, predicting and modulating the interactions between colloidal particles at fluid interfaces, with immense potential for various applications in which the interface stabilization is vital. Degree Type Dissertation Degree Name Doctor of Philosophy (PhD) Graduate Group Chemical and Biomolecular Engineering First Advisor Kathleen J. Stebe
Analisis Konfigurasi Lubang Obstacle Terhadap Laju Reaksi Pembentukan Biodiesel pada Bubble Column Reactor

YAYAN FITRIYAN. Analysis of Obstacle Hole Configuration to the Rate of Biodiesel Production Reaction within the Bubble Column Reactor. Supervised by DYAH WULANDANI and AHMAD INDRA SISWANTARA. One of the non catalytic biodiesel production method is the Superheated Methanol Vapor in the Bubble column reactor. However, the weakness of this method is the low of rate of biodiesel production. The rate of biodiesel production was influent by the surface area between the methanol vapor bubble and oil, while the surface area was affected by the distribution of bubble size which produced from the obstacle hole. The objective of the study was to determine the best configuration of obstacle hole in order to increase the rate of biodiesel production in the Bubble Column Reactor from three design of obstacles tested until obtained the highest result of non catalytic biodiesel production. The design of obstacles were TO(123), TO(100), and TO(68), perforate plate which are connected by steel axis, where the three scenarios given name TO(X) means Triple Obstacle and symbol (X) is total hole in obstacle. These scenarios design were analyzed by the simulation processed using
Calculation of electronic and magnetic properties of hybrid low dimensional structures

The first part of this work presents a theoretical study of the electronic and magnetic structure of Fe chains on the InAs(110) surface. With the calculated geometry the energetically preferable magnetic structure for the Fe chains along [1-10] and [001] on InAs(110) is determined. From the electronic properties like band structure and relevant densities of states the models of the exchange interaction between Fe atoms in the chain are suggested. Additionally, STM constant current images and dI/dU maps are simulated for the studied systems and are compared with experimental STM data on Fe multimers. In the second part of the work density functional theory based calculations are performed on a Co(0001) surface terminated with a monolayer in hcp and fcc stacking, respectively. An explanation of the experimental results is given on the basis of the calculated electronic properties of both stackings. Der Hauptteil der vorliegenden Arbeit widmet sich der theoretischen Untersuchung der elektronischen und magnetischen Struktur von Fe-Ketten auf der InAs(110) Oberflache. Mit der berechneten Geometrie wird die jeweilige magnetische Grundstruktur von Fe-Ketten auf InAs(110) entlang der [1-10] und [001]-Richtungen bestimmt. Ausgehend von der Bandstruktur und den relevanten Zustandsdichten werden Modelle der Austauschwechselwirkung zwischen den Fe-Atomen aufgestellt. Ausserdem werden fur die untersuchten Systeme die STM-Konstantstrom-Bilder und dI/dU-Karten simuliert und mit experimentellen Daten aus STM-Messungen auf Fe-Multimeren verglichen. In dem zweiten Teil der Arbeit wird die Co(0001) Oberflache mit der obersten Monolage in fcc- bzw. hcp-Stapelung mit Hilfe der Dichtefunktionaltheorie simuliert. Auf der Basis der berechneten elektronischen Eigenschaften beider Stapelfolgen wird ein Modell zur Interpretation der experimentellen Daten entwickelt.
Crystal structure of trans-bis[2-hydroxy-5-methyl-phenonethanoneoximato- N,O]nickel(II), C18H20N2NiO4

C18H20N2NÌO4, triclinic, P\ (No. 2), a = 6.296(5) Â, b = 8.204(7) À, c = 8.653(8) Â, α = 71.92(6)°, β = 80.61(7)°, γ = 83.84(6)°, V = 4 1 8 . 4 À 3 , Z = 1, p m = 1.536 g-crrT3, Rg{F) = 0.045, RV/(F1) = 0 . 115, 7 = 2 9 3 K.
Atmospheric ions as the origin of photoinduced degrading of photoluminescence from a single-walled carbon nanotube

Air-suspended single-walled carbon nanotubes (SWCNTs) were exposed to atmospheric ions for identifying the origin of photoinduced degrading of photoluminescence from SWCNTs in air. Decreased intensity and a low energy shift of photoluminescence from the SWCNT were observed after the exposure, and the reaction was found to be accelerated by laser illumination. The amount of the decrease and shift had a weak correlation and were attributed to the chemisorption of hydronium ions along with water molecules.
Isolation and structure elucidation of compounds with antitumor activity from Tamus communis and Xanthium italicum

From the petroleum ether extract of the rhizomes of Tamus communis, the 7-hydroxy-2,3,4,8-tetramethoxyphenanthrene (1) was isolated, together with the known 2,3,4-trimethoxy-7,8-methylenedioxyphenanthrene (2), 3-hydroxy-2,4,-dimethoxy-7,8-methylenedioxyphenanthrene (3), 2-hydroxy-3,5,7-trimethoxyphenanthrene (4) and 2-hydroxy-3,5,7-trimethoxy-9,10-dihydrophenanthrene (5), through cytotoxic assay guidance. The structures were determined by means of HREIMS, H NMR, JMOD and NOESY experiments. The cytotoxic effects of the isolated compounds were tested on cervix adenocarcinoma (HeLa) cells, with the MTT assay. The results demonstrated that, with the exception of 2, all these compounds displayed pronounced cytotoxic activity; especially 1 and 3 exhibited significant cell growth inhibitory effects, with IC50 = 8.52 ± 0.70 and 3.64 ± 0.12 lM, respectively. 2006 Elsevier Ltd. All rights reserved.
Body composition techniques in health and disease: Multi-compartment models for the assessment of body composition in health and disease

Introduction Body composition analysis has evolved from the single unit of body weight, through the classical division into fat and fat-free mass and then onto three, four or more compartments. This chapter will describe each model in terms of the principle of the method, the compartments which are measured, the techniques required and the theoretical limitations or advantages that the model presents. A summary of each model is given in Table 13.1. Alternative approaches to the division of the body including elemental analysis, intra- and extracellular constituents and body segments will not be addressed further here. Weight: a single-compartment model? Although weight alone gives no indication of body composition, in adults it is not uncommon for judgements to be made on the basis of weight, particularly with reference to obesity. There is still a tendency to say that men greater than 100 kg or women greater than 80 kg are overweight with the implied assumption that they have excess body fat. The limitations of this approach are obvious. Two-compartment models In the two-compartment model the body is divided into fat and fat-free mass. At its simplest the measurement of weight and height gives some indication of body composition, by reference to tables of ideal body weight, although this again makes the assumption that the majority of excess weight is fat. The two-compartment model is also the basis of most classical body composition techniques, notably the measurement of body density, total-body water and total-body potassium. Density Body density is calculated as the mass of the body in air divided by its volume.
Effect of Modified Atmosphere Packaging (MAP) on the Quality of Sea Buckthorn Berry Fruits during Postharvest Storage

The effect of modified atmosphere packaging (MAP) on the quality of the berry fruits of sea buckthorn (SBT) during refrigerated storage was investigated. SBT berries were packaged in 160 and 525 oxygen transmission rate (OTR) films or in vented clamshell containers (air control) and stored at 10C for 10 days. Changes in the quality of the berries were determined by the evaluation of their headspace composition, moisture content, dry weight, pH level, color, total soluble solids, texture and antioxidant activity. The results indicated that the 160 OTR film presented good competency to maintain a proper atmosphere for storage. Both the 160 and 525 OTR films showed better capability for retaining the firm and springy texture of the berries, as well as their weight. The total soluble solids of 160 OTR packed fruits remained a stable value. The pH of SBT berries packed in different films and control samples increased in general during storage compared with the initial pH of fruits. The antioxidant activity of the berries was higher in MAP samples, especially those in the 160 OTR packages. Practical Applications This is the first study on the storage characteristics of berry fruit of sea buckthorn (SBT) under modified atmosphere packaging conditions. Film of 160 oxygen transmission rate (OTR) effectively maintained the initial quality parameters and antioxidant activity of berries by slowing down the respiration intensity. It may be because 160 OTR provided excellent CO2/O2 exchange performance to supply a desired gaseous environment of berry fruit. Thus, 160 OTR could be used as a potential packaging film for SBT berry on maintaining fruit quality and antioxidant activity. Furthermore, 160 OTR to different food systems of vegetables, mushrooms and juicy fruits can greatly maintain the nutritional value, product quality and fresh supply. The results of the present study can also serve as an assistive technology combined with other preservation techniques such as ice temperature, controlled atmosphere storage and so on to achieve desirable storage performance.
Chemical Composition and Antimicrobial Activity of the Essential Oil from Croton heterocalyx Baill. (Euphorbiaceae s.s.) Leaves

Abstract The chemical composition and the antimicrobial activity of the essential oil from Croton heterocalyx leaves were evaluated. The oil which was analyzed by GC and GC/MS was found to contain germacrene D (12.5%), bicycloger-macrene (11.2%), δ-elemene (9.2%) β-elemene (8.2%), spathulenol (6.9%), linalool (5.4%) and 1,8-cineole (3.7%) as major components. Croton heterocalyx oil displayed a high inhibitory activity against the fungi Aspergillus niger (16404) and Candida albicans (ATCC 10231) as well as the Gram-positive bacterium Staphylococcus aureus (ATCC 6538), but a very weak activity was observed for the Gram-negative bacteria Escherichia coli (ATCC 8739) and Pseudomonas aeruginosa (ATCC 9027).
Study on the Predictive Models of the Quality of Silver Carp (Hypophthalmichthys Molitrix) Fillets Stored under Variable Temperature Conditions

Predictive models about the quality changes of silver carp (Hypophthalmichthys molitrix) fillets stored under variable temperatures were investigated. Electrical conductivity (EC), total aerobic count (TAC), total volatile base nitrogen (TVB-N) and sensory score of silver carp fillets stored at 270, 273, 276, 282 and 288 K were determined. Different reaction orders (zero, first and second) were tested; EC, TAC and TVB-N followed a first-order reaction equation; and sensory score followed a zero-order reaction equation based on the total coefficient of determination (ΣR2). The effect of temperature and storage time on the quality of silver carp fillets was modeled by using Arrhenius equation. All the relative errors of validation experiments for EC, TAC and sensory score varied by <13% and for TVB-N varied by <13% within 12 days. Therefore, the models can predict the quality of silver carp fillets effectively within 270–288 K. Practical Applications In this work, the efficient quality models for silver carp fillets during refrigerated storage were established. The useful information about quality changes in silver carp fillets stored under different temperatures could be obtained by the predictive models. In addition, fast calculations of the quality changes based on the stored temperature allow optimizing their storage management and reducing the economic losses during cold chain. Therefore, the quality models of silver carp fillets have a brilliant prospect in predicting quality changes during the cold chain.
The Reductive Dehalogenation of Chloroethenes, Dichlorophenol, and Chlorobenzenes

Reductive dehalogenase (RD) gene transcript levels in Dehalococcoides ethenogenes strain 195 were investigated using reverse transcriptase quantitative PCR during growth and reductive dechlorination of tetrachloroethene (PCE), trichloroethene (TCE), or 2,3-dichlorophenol (2,3DCP). Cells grown with PCE or TCE had high transcript levels (greater than that for rpoB) for tceA, which encodes the TCE RD, pceA, which encodes the PCE RD, and DET0162, which contains a predicted stop codon and is considered nonfunctional. In cells grown with 2,3-DCP, tceA mRNA was less than 1% of that for rpoB, indicating that its transcription was regulated. pceA and DET0162 were the only RD genes with high transcript levels in cells grown with 2,3-DCP. Proteomic analysis of PCE-grown cells detected both PceA and TceA with high peptide coverage but not DET0162, and analysis of 2,3-DCP-grown cells detected PceA with high coverage but not TceA, DET0162, or any other potential RD. Cells grown with PCE or 2,3-DCP were tested for the ability to dechlorinate PCE, TCE or 2,3-DCP with H2 as the electron donor. 2,3-DCP-grown cells were unable to dechlorinate TCE but 1 Originally published with copyright 2007 from “ Expression of reductive dehalogenase genes from Dehalococcoides ethenogenes strain 195 growing on tetrachloroethene, trichloroethene, or 2,3-dichlorophenol” by Fung, J.M. , Morris, R.M. , Adrian, L. , and Zinder, S.H. Appl Environ Microbiol 73 (14) 4439-4445. Reprinted with permission from American Society of Microbiology.
Angular Resolved low loss EELS for Materials Characterization

Keywords: electron energy loss spectrometry (EELS) ; momentum-dependence ; inelastic scattering ; diffraction ; nano-beam ; energy filtered transmission electron microscopy (EFTEM) ; dielectric function These Ecole polytechnique federale de Lausanne EPFL, n° 5965 (2013)Programme doctoral PhysiqueFaculte des sciences de baseInstitut de physique de la matiere condenseeLaboratoire de spectrometrie et microscopie electroniqueJury: M.Q. Tran (president), R. Erni, J.-D. Ganiere, G. Hug Public defense: 2013-12-20 Reference doi:10.5075/epfl-thesis-5965Print copy in library catalog Record created on 2013-12-12, modified on 2017-05-12