cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14457/cu.the.2014.1455
title: Inventory control system improvement in an automotive adhesive company

description: The objective of this research is to improve inventory management to be able to control the inventory quantity, which would lead to the minimization of total inventory costs. This research proposes three phase of methodology, which are define, propose phase and implement phase, to improve efficiency of inventory management by control policy and management.Define phase describes and analyzes current inventory management workflow process. The scope of inventory management in this research consists of three main parts; inventory control policy set up, warehouse activities, such as inbound and outbound activities and inventory recording system. Then, problems and their effects are defined through brainstorming. Cause-and-effect diagrams are created to illustrate key problems, cause of problems and areas for improvement. Additionally, inventory level and cost components of inventory have been studied analyzed and identified at current state to indicate current performance.In propose phase, characteristic of inventory has been studied, solution for improvement of inventory control process and warehouse process have been developed, proposed and elaborated in order to achieve research objectives with helps of tools and techniques reviewed in literature review chapter. This phase begin with inventory classification and demand pattern analysis. Appropriate inventory control policy are suggested, discussed and calculated for each class of inventory, and then Standard process and workflow of inventory management and warehouse management are outlined, follow by standard documents related and computer based inventory recording system discussion. Warehouse layout and zoning are proposed.For implement phase, the simulations of the methodology and inventory control policy proposed are simulated through Microsoft Excel. Proposed solutions and method is tested simulation through Microsoft Excel, evaluating with a set of actual four months data from January 2015 – April 2015, while current method is in used. Results show the comparison between proposed method and current method, which can be summarize that the proposed inventory policy and methodology are successful in developing new inventory control policy and managing the inventory, as it can reduce overall inventory value, inventory holding cost and inventory ordering cost, which will result in reduction of total cost related to inventory, while the desired service level is still achieved. The major saving is achieved in reducing the inventory value, captured and compare to the current inventories, there is a saving up to 42 million baht, which is 45.5% during simulated period of four months.
DOI: 10.14457/cu.the.2014.1456
title: Effects of crystallinity on puffing qualities of rice starch-based product

description: The influence of relative crystallinity (RC) of retrograded starch gel (RG) and pellet (P) on physical properties as well as sensory attributes of rice starch-based puffed product (PD) was determined. Mathematical models for predicting of the sensory attributes of PD from either RC of the P or physical properties of the PD were developed. In order to achieve these aims, the effects of amylose content (AC in the range of 0.12-19.00% w/w on dry basis); cooling rate (1, 3, 5, and 9 °C/min) and aging time (24, 48, and 72 h) on RC, physical properties of RG; P and PD, and sensory attributes of PD were evaluated. Starches, isolated from waxy rice (RD 6) and non-waxy rice (Jeckchey-Saohai), were mixed to obtain an AC of 0.12, 4.00, 9.00, 14.00, and 19.00%. The crystalline type and RC of RG and P were determined by X-ray diffraction pattern (XRD) while retrogradation enthalpy (∆Hrt) was determined using Differential Scanning Calorimetry (DSC) thermogram. For all cooling rates and aging times, the polymorph (B and V) and endotherms were found for AC ≥4.00%. For gels and P, RC and ∆Hrt increased linearly with AC with slopes of 0.57 and 0.27 %RC/%AC, and 0.34 and 0.15 J/g%AC, respectively. They also increased with aging time from 24 to 72 h at least 7 and 15% for RC gel and P while ∆Hrt increased at least 4% and 7%. The cooling rate did not affect RC and ∆Hrt. An increase in hardness was found to be 0.53 and 1.20 N/%RC for P and PD, respectively. The fracturability of P increased 0.22 N/%RC. For the PD, the hardness, fracturability, and bulk density increased 1.20 N/%RC, 0.89 N/%RC and 0.03g/ml/%RC; while expansion ratio decreased 0.134/%RC. A higher RC of P provided smaller and denser air cell structures and lower expansion, but higher crispness, hardness and fracturability of the PD. The developed models showed that the RC of P in a range of 0.95-6.96% can be an excellent predictor of physical properties (hardness, fracturability, bulk density, and expansion ratio) and sensory attributes (air cell density, air cell size, expansion, puffiness, crispness, hardness, and brittleness) of PD (R2≥0.85). It also found that physical properties (hardness, fracturability and puffiness) and their match sensory attributes (hardness, brittleness, and crispness) did correlate (r≥0.85). Puffiness and crispness correlated to expansion and brittleness (r≥0.88). P having RC in the range of 2.8-3.7%, made from a starch of 9% AC, got the highest scores for appearance and texture while also having just the right intensity of crispness and hardness by 76.3-78.3% of consumers.
DOI: 10.14457/cu.the.2014.1457
title: Conjugated polymer synthesis from 2,5-dichloro-3,4-dinitrothiophene

description: New conjugated polymers were synthesized via nucleophilic aromatic substitution (SNAr) polymerizations. 2,5-dichloro-3,4-dinitrothiophene (DCDNT) as a main acceptor monomer was polymerized together with varieties of nucleophilic monomers as donor units. For some of the monomers: DCDNT was synthesized in 78% yield, and 1-n-octyl-1H-pyrrole (1), N1,N4-dioctylbenzene-1,4-diamine (2) and 2-heptylbenzimidazole (4) were also synthesized in 75%, 54% and 33% yields, respectively. The reactions of DCDNT with compound 1, n-butylamine, and compound 4 were unsuccessful, in which the reactions with compound 1 and n-butylamine did not give any polymeric products. However, the reactions with 3,4-ethylenedioxythiophene (EDOT), 3,4-dimethoxythiophene (DMT), sodium sulfide, hydrazine, p-phenylenediamine, N,N’-di-sec-butyl-p-phenylenediamine and compound 2 yielded polymers 7, 8, 9, 12, 13, 15 and 17, respectively. The polymers were insoluble in common organic solvents. They exhibited the characteristic absorptions in the visible region of conjugated polymers with a maximum wavelength absorption (λmax) in the range of 540-690 nm.
DOI: 10.14457/cu.the.2014.1458
title: Effect of thermal process on bioactive compounds in crinum asiaticum leaves

description: Crude extracts from heated-Crinum asiaticum Linn leaves by 2 processes including steaming (95 ºC, 1 h) and oven drying (160 ºC, 10 minutes) compared with crude extracts of fresh Crinum asiaticum Linn leavevs. Steamed leaves and oven dried leave gave the lycorine content, which is important bioactive compound in Crinum asiatiucum Linn leaves were 3.69±0.04 and 4.48±0.02 mg/mL, respectively. While lycorine content of the fresh leaves was 2.35±0.09 mg/mL, which oven dried leaves gave lycorine content approximately to 2 fold of fresh leaves. Therefore, heated-Crinum asiaticum Linn leaves by oven-drying process were chosen for study the effects of various temperatures (50, 70, 100 and 120 ºC) and times (10, 30, and 60 minutes) on bioactive compounds in Crinum asiaticum Linn leaves. Oven dried Crinum asiaticum Linn leaves of temperature at 50 ºC for 30 minutes was the highest lycorine content. All crude extracts were tested antioxidant activities that the heated leaves at 50 ºC for 30 minutes and 100ºC for 10 minutes showed the greatest antioxidant activity. Moreover, all crude extracts were tested cytotoxic activities against 5 cancer cell lines including SW620, CHAGO, KATO-III, Hep-G2 and BT474 by MTT assay. Crude extracts of oven dried-Crinum asiaticum Linn leaves of temperature at 50 ºC for 30 minutes showed high cytotoxic activity against gastric cancer cell line (KATO-III), IC50 was 1.5 ± 0.26 µg/mL. Moreover, Crude extracts of oven dried Crinum asiaticum Linn leaves of temperature at 50 ºC for 30 minute were non-toxic to lung normal cell line (WI-38) at 50 µg/mL. Furthermore, we studied the effect of crude extracts from Crinum asiaticum Linn leaves for anti-inflammatory. For 0.1 µg/mL, The heated Crinum asiaticum Linn leaves of 50 ºC for 30 minutes and 100ºC for 10 minutes showed the greatest inhibited inflammation, which is more than the parthenolide compound. While the fresh leaves exhibited minimal effect. Therefore, heated-Crinum asiaticum Linn leaves by oven-drying process especially oven dried leavevs of temperature at 50 ºC for 30 minute had effect to increased lycorine content which has efficacy for antiantioxidant and against gastric cancer cell line. Moreover, crude extracts of oven dried Crinum asiaticum Linn leaves can helpful to develop for anti-inflammatory.
DOI: 10.6084/m9.figshare.13619417
title: Experiments

description: Dataset of two experiments and Analysis Method
DOI: 10.6084/m9.figshare.13619417.v1
title: Experiments

description: Dataset of two experiments and Analysis Method
DOI: 10.15121/1367891
title: Brady's Geothermal Field - March 2016 Vibroseis SEG-Y Files and UTM Locations

description: PoroTomo March 2016 Updated vibroseis source locations with UTM locations. Supersedes gdr.openei.org/submissions/824. Updated vibroseis source location data for Stages 1-4, PoroTomo March 2016. This revision includes source point locations in UTM format (meters) for all four Stages of active source acquisition. Vibroseis sweep data were collected on a Signature Recorder unit (mfr Seismic Source) mounted in the vibroseis cab during the March 2016 PoroTomo active seismic survey Stages 1 to 4. Each sweep generated a GPS timed SEG-Y file with 4 input channels and a 20 second record length. Ch1 = pilot sweep, Ch2 = accelerometer output from the vibe's mass, Ch3 = accel output from the baseplase, and Ch4 = weighted sum of the accelerometer outputs. SEG-Y files are available via the links below.
DOI: 10.14457/cu.the.2014.1459
title: Antibacterial activity and gene regulation of antilipopolysaccharidefactor from black tiger shrimp Penaeus monodon

description: Antilipopolysaccharide factor (ALF) is one of the antimicrobial peptide families identified in invertebrates. Six different isoforms of the ALF homologues have been identified from Penaeus monodon. Previously, ALFPm6 has been shown to possibly play an important role in shrimp immunity against pathogen invasions. To further characterize ALFPm6, the nucleotide sequences coding for mature peptide of ALFPm6 were cloned and expressed in Pichia pastoris strain KM71. The recombinant ALFPm6 protein (rALFPm6) with the expected size and pI of 12 kDa and 9.69, respectively, was successfully produced. The crude rALFPm6 protein showed antibacterial activities against both Gram-positive and Gram-negative bacteria, such as Bacillus megaterium and Escherichia coli 363, respectively. Because of the unsuccessful rALFPm6 purification, the synthetic cyclic ALFPm6#29-52 peptide (cALFPm6#29-52) corresponding to ALFPm6 LPS-binding site was synthesized and analyzed for antibacterial activity. It exhibited the growth inhibition activity against some tested bacteria such as a Gram-negative bacterium, E. coli 363 as well as Gram-negative bacteria, B. megaterium, Aerococcus viridans, and Micrococcus luteus, with MBC value of 25-50 µM. Bacterial agglutination assay indicated that cALFPm6#29-52 induced bacterial agglutination mediated bacterial killing. Herein, the regulation of ALFPm3 and ALFPm6 gene expression was also studied. The 5′-upstream sequences of ALFPm3 (1780 bp) and ALFPm6 (504 bp) genes were identified by genome walking technique. Sequence analysis of ALFPm3 and ALFPm6 promoters identified several putative transcription factor (TF)-binding sites. Using narrow down assay, ALFPm3 and ALFPm6-promoter active regions located at nucleotide position (-814/+302) and (-282/+85), respectively, were identified. ALFPm3 promoter active region contained TF-binding sites of SP-1, ICSBP, and NF-κB plus 21 units of GAAAGAGAGTAAGAG[T/C] tandem repeat. ALFPm6 promoter active region contained TF-binding sites of SP-1, ICSBP, Oct-1, and C/EBPß. Afterthat, the activator-binding sites from -814 to -266 of ALFPm3 promoter and -282 to -81 of ALFPm6 promoter were identified. Site-directed mutagenesis at the conserved nucleotide of selected TF-binding sites revealed that Rel/NF-κB binding site (-280/-270) and C/EBPß (-88/-78) binding site were the activator-binding site of ALFPm3 and ALFPm6 promoters, respectively. RNAi knockdown of MyD88 and Relish genes in Vibrio harveyi-infected shrimp suggested that ALFPm3 gene expression might be regulated by both Toll and IMD pathways, while ALFPm6 gene expression might be regulated by Toll pathway.
DOI: 10.14457/cu.the.2014.1460
title: Starch modification using starch branching enzymes from cassava manihot esculenta crantz

description: Starch branching enzymes (SBE) is a member of the α-amylase family. SBE, an α-1,4-glucan-6-glucosyltransferase (EC 2.4.1.18), introduces branch points in the amylose and amylopectin molecules by hydrolysis of α-1,4-glucan chain from the non-reducing end and catalyzes the formation of an α-1,6 cross linkage between the reducing end of the cleaved chain and a glucose residue on the same oligosaccharide chain. In our laboratory, a few cassava starch metabolizing enzymes have been isolated and their genes were cloned. One of the enzymes was SBE cloned from cassava sbe genes. In this research work, two recombinant SBEs, SBERI and SBERII, were expressed and purified. The purified recombinant SBEs were used to modify cassava starch, amylose and amylopectin. SBERI and SBERII were incubated with cassava starch, amylose and amylopectin. The products were identified by HPAEC-PAD technique on a carbopac PA-1 and PA-100 columns. Optimum condition for SBERI activity on cassava starch was 37oC, 15 units of activity, 10% (w/v) of cassava starch and 12 hours incubation time while SBERII showed optimum activity at the same condition but at 3 hours incubation time. When substrate was changed to amylose or amylopectin, SBERI showed activity towards amylose but not amylopectin and the optimum conditions was 37oC, 10 units activity, 2% (w/v) of amylose and 12 hours incubation time. SBERII was active to only amylopectin and the optimum conditions for SBERII activity was 37oC, 10 units activity, 2% (w/v) of amylopectin and 3 hours incubation time. At the determined optimum conditions, analysis of side chain distribution on PA-1 showed that the starch modified by SBERI and SBERII contained higher branches than unmodified substrates and SBERII also yielded medium rings cycloamyloses when analyzed with PA-100 column on HPAEC-PAD. Characterization of the physical properties of the modified product of cassava starch, amylose and amylopectin showed low retrogradation, high thermo reversibility and low freeze-thaw stability.
DOI: 10.14457/cu.the.2014.1461
title: Metal chloride impregnated-pillared clay for coumarin synthesis and anion intercalated Ni/Zn catalyst for michael addition reactions

description: Metal oxide-pillared montmorillonites were synthesized by intercalation method and calcination. The impregnation with metal chloride (CrCl3 and NdCl3) was carried out with calcination. The synthesized clays were characterized by powder X-ray diffraction, N2 adsorption-desorption and temperature programmed desorption of ammonia techniques. These synthesized clays were utilized as catalysts for the synthesis of coumarins, isomerization of epoxides and synthesis of acetonides from epoxides. The synthesized clays provided considerably higher catalytic activities than the parent clay. The optimized conditions for these acid-catalyzed reactions were scrutinized. These reactions could be expediently proceeded using synthesized clay catalysts to provide good to excellent yield and selectivity of the corresponding products under mild reaction conditions. In addition, the alkylcarboxylate anion-intercalated NiZn catalysts were prepared by intercalation method, characterized by powder X-ray diffraction and utilized for Michael reaction. The synthesized NiZn catalysts furnished high catalytic activities.
DOI: 10.14457/cu.the.2014.1462
title: Synthesis of magnetic nanoparticles and infiltration through dentine disc with magnetic field for application in drug delivery to dental pulp

description: In this work, Polypoly(ethylene glycol) monomethyl ether methacylate (PPEGMA) coated magnetic nanocomposite (PPEGMA-MNCs) size series were synthesized. The MNCs were coated with PPEGMA via Atom Transfer Radical Polymerization (ATRP). Their sizes are in the range of 20-200 nm. All of them are well-dispersed in water-based solution and biocompatible. Moreover, after they were coated with PPEGMA, they still exhibited magnetic response with superparamagnetic character but weaker than pristine magnetic NPs. The MNCs of 24.86±4.38, 45.24±5.00, 98.10±8.88 and 202.22±6.70 nm in diameter were obtained as measured by transmission electron microscopy (TEM). Thermogravimetric analysis (TGA) was used determination of % weight of PPEGMA on MNCs showing the weight loss of 86%, 64%, 33% and 30% for PPEGMA-MNCs for the MNCs of 20, 40 100 and 200 nm, respectively. These MNC size series were studied for the infiltration through a dentine disc. The results indicated that they cannot be infiltrated through dentine discs with an external magnet. Additionally, we studied the infiltration of the pristine magnetic NPs (MNPs) in two systems. In the first system, MNPs were stabilized with oleic acid and dispersed in cyclohexane (Mc), while the other MNPs were stabilized with aminoethoxysilane (APS) and dispersed in ethanol (Me). The infiltration results indicated that MNPs can pass through dentine discs for 2.87% and 0.65% of the starting concentration for the infiltration of Mc and Me, respectively. The differences in magnetization of MNPs and MNCs suggested that the MNCs cannot be infiltrated through dentine discs because their magnetic property is very weak. From these studies, we demonstrate that the magnetic nanoparticles with enough magnetization can be applied in the development of new techniques for root canal treatments and can be useful in as a new clinical approach in dentistry.
DOI: 10.14457/cu.the.2014.1463
title: Colorimetric sensor of schiff's reagent for formaldehyde gas detection

description: Two gas sensing elements were developed for naked-eye detection of formaldehyde gas. Polyvinyl alcohol film and silica gel were doped with Schiff’s reagent as sensing reagent of different concentrations (0.8, 1.0 and 1.3 mM). The sensors were characterized by ATR-FTIR spectrophotometer, UV-Visible spectrophotometer and DR-UV-Vis spectrophotometer. The film sensor (size 0.7x0.8 cm, thickness 0.162 ±0.001 mm) was enclosed into a glass tube (4.5 mm i.d.) while the solid-phase sensor (0.01 g) was packed into a glass tube for easy usage. The formaldehyde generation system was developed in-house and their performance was tested. Formaldehyde gas with concentration of ca. 6 ppb and 62 ppb were used to test the performance of film and solid phase sensors. The gas mixture flow rate of 100 mL min-1 was used in this study. The both sensors showed color change from yellow to magenta or purple after exposure to formaldehyde gas and the intensity of the color depended on both Schiff’s reagent concentration and formaldehyde concentration. The solid sensor doped with 0.8 and 1.0 mM Schiff’s reagent could detect formaldehyde gas and gave different color tint with response time of 2 and 3 min, respectively. The film sensor doped with 1.3 mM could detect only ca. 62 ppb formaldehyde with response time of 11 min. The performance of the prepared sensors was evaluated by applying the sensors to detect a synthetic gas sample.
DOI: 10.14457/cu.the.2014.1464
title: Preparation of chitosan injectable hydrogel for bone tissue engineering

description: This research was purposed to prepare chitosan derivative as injectable hydrogel for bone tissue engineering via inclusion gelation. In order to apply chitosan as injectable hydrogel, chitosan should not only be soluble in water, but it also could form hydrogel under physiological condition. α-cyclodextrin (α-CD) was selected to modify onto chitosan. Since, it had tremendous hydrophilic hydroxyl groups which provided chitosan for water solubility as well as hydrophobic cavities which function as crosslinking points by inclusion complex with poly(ethylene glycol), PEG. The conjugation between α-CD and chitosan was performed via water soluble carboxymethyl chitosan precursor (CM-chitosan) which provided carboxyl groups for conjugation. Hydrogel was prepared by inclusion gelation of mixing between α-CD conjugated chitosan and PEG. CM-chitosan-g-α-CD showed FTIR characteristic peak of β-pyranyl vibration of chitosan and the characteristic peak of α-pyranyl vibration of α-CD at 898 and 952 cm-1, respectively. For NMR spectra, CM-chitosan-g-α-CD showed peak H-1 of α-CD and H-2 of chitosan. The results indicated that α-CD was successfully conjugated onto CM-chitosan. The optimum molar ratio of α-CD to PEG was 2 to 4 and threading number was 2.5. The concentration of CM-chitosan-g-α-CD was 15%(w/v) to prepare hydrogel. The mix solution formed hydrogel within 450±10 min. The solution could be drawn into syringe and injected into mold. The morphology of hydrogel was observed by Scanning Electron Microscope. It was found that the hydrogel appeared porosity. The porosity was interconnecting pore in order to transport nutrients to cells. Therefore, this injectable hydrogel would be a novel candidate approaching for bone tissue engineering injectable scaffolds.
DOI: 10.14457/cu.the.2014.1465
title: Development of electrochemical sensor for detection of antioxidants using conductive ink modified screen-printed electrode

description: A development of ultra-high performance liquid chromatography coupled with a novel inkjet-printed conductive ink-modified electrode for a fast and simultaneous determination of polyphenolic antioxidants was achieved. Two printing techniques were chosen for fabrication and modification including (i) an in-house screen-printing method and (ii) an inkjet-printing method, respectively. A conductive ink containing graphene and polyaniline nanocomposite (G-PANI) was precisely printed onto the surface of screen-printed carbon electrode (SPCE) using a dimatix inkjet material printer. For the electrode modification, optimization of significant conditions including a G-PANI ratio and a number of inkjet-printed layers was initially investigated. Using an optimized G-PANI-modified screen-printed carbon electrode (G-PANI/SPCE) in an electrochemical batch cell, cyclic voltammetric detection of individual antioxidants was studied. Compared to a bare SPCE, the G-PANI/SPCE provided higher electrochemical sensitivity with increase (2-4 times) of peak current of each antioxidant. Moreover, four antioxidants were successfully separated and determined within 3 min using a reverse phase ultra-high performance liquid chromatography (UHPLC) with a mobile phase containing phosphate buffer (pH 3) and acetonitrile (90:10, %v/v). Under an optimal detection potential at +1.2 V vs. Ag/AgCl, linear calibrations were found to be 0.01–10 µg mL-1 with limits of detection (S/N=3) of 1.38-1.94 ng mL-1 and limit of quantitation (S/N=10) of 4.59-6.46 ng mL-1. Finally, this proposed method has been successfully used for the determination of antioxidants in tea samples. The results obtained from the presented method were highly good agreement with those obtained from a standard UHPLC-UV method.