cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14457/cu.the.2008.1597
title: Application of ozone solution for textile washing

description: Textile manufacturing is one of the most important industries. One important issue in this industry is how to clean fabric by maintaining its quality. In this work, the application of ozone solution for removing linoleic acid as a simulated strain from 100% cotton fabric was experimentally investigated. The ozone solution was prepared by electrolysis technique at room temperature. The effects of ozone concentration in the range of 0.5 to 2.5 ppm and washing time of 5 to 20 min on the properties of ozone treated fabric samples was studied. From the experimental results, the removal of linoleic acid depended on pH of the ozone solution. The fastest oxidation rate constant of 0.0023 sec¯¹ could be achieved under the basic condition (pH≥9). The increasing ozone concentration and washing time could provide appreciable removal of the simulated stain. Whiteness index of the fabric treated with 2.5 ppm ozone solution increased 6.3 % comparing with the untreated one but the strength of fabric was decreased comparing with original fabric. After 30 washing cycles, the strength of the ozone washed fabric decreased only 7.29% in comparison with its original value but its whiteness index was still at the same level as that of the original one. The advantages of the ozone washing system were saving in the chemicals and extending lift time of the cotton fabric, when compared with the conventional washing system.
DOI: 10.14457/cu.the.2008.1598
title: Bioactive compounds from the heartwood of dalairo Anaxagorea luzonensis A. Gray

description: The chemical constituent investigation from the heartwood of Anaxagorea luzonensis A. Gray disclosed seventeen compounds. By means of physical properties and spectroscopic evidences, the structures of seventeen compounds could be elucidated as 1,3,5-trihydroxy-4-(3-hydroxy-3-metylbutyl)xanthone (1), orobol (2), naringenin (3), aromadendrin (4), keampferol (5), quercetin (6), taxifolin (7), 1,3,6-trihydroxy-5-methoxyxanthone (8), 1,3,5-trihydroxy-4-prenylxanthone (9), 1,3,5,6-tetrahydroxyxanthone (10), daidzein (11), biochanin A (12), genistein (13), 3,6-dihydroxy-1,5-dimethoxyxanthone (14), 8-prenylnaringenin (15), stigmasterol (16) and 6-deoxy-isojacareubin (17). Among of them, compounds (3), (4), (11), (13), (16) and (17) have been first reported as chemical constituents in A. luzonensis. The results of bioactivity test revealed that compounds (1) and (2) had strong activity with IC50 2.36, and 2.57 M against acetylcholinesterase and 2.25, 3.66 M against butyrylcholinesterase, respectively. Additionally, compounds (6) and (9) revealed strong activity with IC50 1.27 and 4.90 M against butyrylcholinesterase, respectively. Compound (6) exhibited the highest scavenging activity toward DPPH radical with IC50 0.09 mM and decolorizing ABTS with TEAC value 2.88. Xanthones (1), (8), (9) and (10) exhibited high inhibitory activity against phosphodiesterase comparing with other flavonoids.
DOI: 10.14469/hpc/5993
title: D with dispersion opt conf1 G= -612.312143

description: Gaussian Calculation
DOI: 10.14469/hpc/5994
title: D with dispersion opt conf2 G=-612.312576

description: Gaussian Calculation
DOI: 10.17632/pkd6yns4c5.1
title: Data for Hydraulic Conductivity Test

description: The main objective of the research was to determine the effect of sodium sulphate on the hydraulic conductivity of slag-cement-clay vertical cutoff walls. The effect of the sodium sulphate (of varying concentrations; 1000, 3000, 6000 and 10000 mg/L) on the hydraulic conductivity of OPC-clay samples was also examined. The optimal slag-cement binder required for constructing vertical walls was also determined.
DOI: 10.5519/qd.fnbbf2h7
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (7908 records)
DOI: 10.14457/cu.the.2008.1492
title: Attributes scaling for K-means algorithm controlled by misclassification of all clusters

description: K-means clustering, one of the well-known distance-based clustering methods, is a very popular unsupervised machine learning using in various applications. Researchers try to integrate the concept of supervised learning to K-means clustering via attribute-scaling vector. With addition of this vector, K-means clustering can be supervised by the information of target class provided in the training set. In this thesis, we explore and determine the optimal attribute-scaled vector that minimizes the misclassification rate of the target class. This thesis uses the non-linear unconstrained optimization techniques in attribute-scaled space, called cyclic coordinate method and Hooke and Jeeves method. Our experiments show that both methods can provide the optimal scaling vectors which effectively reduce the misclassification error of supervised K-means clustering and lead to the effective supervised clustering in some data sets. For other data sets, the improvement of misclassification error is still achievable, but the error is too high suggesting that those datasets are not suitable to apply supervised clustering.
DOI: 10.14457/cu.the.2008.1493
title: Some local Subsemigroups of semigroups of partial transformations and linear transformations

description: The set of all idempotents of a semigroup S is denoted by E(S) . A local subset of a semigroup S is a subset of S of the form eAe where e E(S) and A is a subsemigroup of S . A local subset of S need not be a subsemigroup of S . By a local subsemigroup of S we mean a local subset of S which is a subsemigroup of S . Notice that for every e E(S) , the local subset eSe is a local subsemigroup of S . A semigroup S is regular if for every a S , a = axa for some x S. Let be a nonempty set. Denote by P(X) , T(X) , I(X) and G(X) the partial transformation semigroup, the full transformation semigroup, the 1-1 partial transformation semigroup (the symmetric inverse semigroup) and the symmetric group on X, res-pectively. In this research, it is shown that for any a E(P(X)) , aT(X)a is a local subsemigroup of P(X) and we characterize a E(P(X)) when X is finite for which the local subsets aI(X)a and aG(X)a of P(X) are local subsemigroups of P(X) . These characterizations automatically imply that these local subsemigroups of P(X) are regular semigroups. We also study the semigroup L(V) of all linear transformations of a finite-dimensional vector space V in the same maner. We provide a necessary and sufficient condition for a e(L(V)) guaranteeing that aGL(V)a is a local subsemigroup of L(V) where GL(V) is the group of all isomorphisms of V . In addition, the local subset AGn(F) of the full nxn matrix semigroup Mn(F) over a field is considered similarly where Gn(F) is the group of all nonsingular nxn matrices over F . These local subsemigroups of L(V) and Mn(F) are also regular.
DOI: 10.14457/cu.the.2008.1494
title: Effects of crude extract from some tropical weeds on seed germination and growth of Mimosa pigra L.

description: The allelopatic effect of 3 tropical weeds, purple nutsedge (Cyperus rotundus L.), Indian heliotrope (Heliotropium indicum L.) and Pha-yaa mutti (Granagea maderaspatana Poir.) were studied. It was found that the dichloromethane crude extract showed higher inhibitory effect than the methanol crude extract. The dichloromethane extract of purple nutsedge at 1 g equivalent (dry weight) exhibited 86, 76 and 73% inhibitory effect on germination of giant mimosa (Mimosa pigra L.), respectively. Root growth elongation of the tested species revealed 81, 61 and 35% inhibition, respectively. In addition, shoot elongation inhibition of those plants were 62, 46 and 32%, respectively. The allelopatic effect of Indian heliotrope,purple nutsedge and Pha-yaa mutti crude extracts against crop plants (Impomoea aqutica, Brassica alboglaba, Brassica chenensis, Zea mays) and some weeds (Celosia argentea, Ruellia tuberosa, Dactyloctenium aegyptium and Chloris barbata were tested at 1 g equivalent (dry weight). D. aegyptium, C. barbata and C. argentea exhibited 100% germination inhibition activity and R. tuberosa displayed 47% germination inhibition. Furthermore, I. aqutica and Z. mays exhibited 35 and 50% germination inhibition, respectively, but B. alboglaba and B. chenensis did not show germination inhibition comparing with control.
DOI: 10.14457/cu.the.2008.1495
title: Preparation of polyglycerol-based polyurethane for slow - released fertilizer

description: Slow released fertilizer was prepared by coating a fertilizer with polyurethane (PU) from the reaction of methylene diphenyl diisocyanate (MDI) and polyol. The polyols synthesized by glycerolysis reaction of glycerol and epoxidized palm oil, palm oil, and castor oil were used as starting material for preparing polyurethane used for slow releasing of nutrient. The PU was coated on the urea fertilizer for 1-5 layer and the coated fertilizer was studied the releasing rate by UV-Visible spectrophotometry technique. It was found that the coated fertilizer exhibited the slow released properties. When thickness of the PU coating was increased, the releasing rate of urea decreased and increasing ambient temperature resulted in increasing of releasing rate. Furthermore, basic condition decreased releasing rate of urea. For 1-3 layer coated fertilizer, urea completely released within 30 days while the 5 layer coated fertilizer gave a slower and constant releasing rate. Furthermore, it was found that the urea of 5 layers coated with epoxidized palm oil polyol based, palm oil polyol based and castor oil based polyurethane was released within 30 days by 85, 90 and 94% respectively.
DOI: 10.14457/cu.the.2008.1496
title: Risk management in software purchasing : an empirical study of Thai's company

description: When business competition is increased, it is possible that legacy software could not serve the response on business requirements. Software purchasing is the solution that could help organizations to take action on dynamically requirements. Some organizations have been successfully implemented new software while some fail according to the differences of risk management processes that selected from each organization. Therefore, a survey of risk management processes in various business organizations in Thailand had been performed and proposed the most accurately risk management procedure which are proof of concept and product prototype analysis that could reduce percentage of failure comparing with organizations’ satisfaction rate. Additionally, the experimental results have shown that applying standard risk management process do not meet user satisfaction while proposed risk management process of Thai’s organizations performed better results rather than standard.
DOI: 10.14457/cu.the.2008.1497
title: Synthesis of doped polythiophene film by microwave plasma polymerization

description: A microwave plasma reactor for the synthesis of polythiophene thin films has been designed and assembled. Plasma polymerization parameters were studied. Microwave power in the range of 150-300W was employed for 1-2 minutes. Polythiophene films were characterized by various spectrophotometric methods. Infrared analyses showed absorption frequencies of important functional groups mostly similarly observed in the case of chemically-synthesized materials. Fabricated polythiophene films exhibited UV-Vis spectra indicative of increased conjugative systems as the microwave power increased although at high microwave power partial fragmentation was evident. Surface analysis by Scanning Electron Microscopy revealed a uniformly fabricated globular particle morphology. In addition, these polythiophene thin films were found to be dense and pinhole-free. Results from Energy-dispersive X-ray spectroscopy analysis were suggestive of partial fragmentation of the films at high microwave powers as some degree of sulfur content was decreased. This is in good agreement with a possibility of partial cleavage of a C-S bond in the thiophene rings. Electrical conductive measurements revealed that the undoped films exhibit higher conductivity (5.4x10⁻⁷ to 1.9x10⁻⁶ S/cm) than polythiophene typically prepared from electrochemical methods. As for the doped materials, initial conductivities (1.4x10⁻⁵ to 1.0x10⁻⁴ S/cm) were lower than plasma-polymerized films which were doped with conventional method (1.5x10⁻⁴ to 1.9x10⁻³ S/cm). However, it was found that conductivity of the latter decreased more rapidly and reached an undoped value in a short time (48 hours). In contrary, the decaying rate of conductivity of in situ doped material could be sustained for a longer period of time (more than 96 hours).
DOI: 10.14457/cu.the.2008.1498
title: External loop airlift photobioreactor for cultivation of Chaetoceros Calcitrans

description: The study of the cultivation of Chaetoceros calcitrans was performed using the 17 L external loop airlift photobioreactor (ELAP) with the ratio between downcomer and riser cross sectional area (A[subscript d]:A[subscript r]) of 3.717. It was demonstrated that lowering the location of the connection tube from 120 cm (in UTCT-ELAP) to 100 cm (in LTCT-ELAP) helped improve the growth performance. This could be due to the improved gas-liquid mass transfer rate which allowed more CO₂ to dissolve into the medium as a carbon source. Inclining the connection tube (in ITCT-ELAP) could facilitate the release of bubbles from the system, however, the inherited higher liquid velocity in such system lowered the gas-liquid mass transfer, and no improvement in the growth was observed when compared with the performance of UTCT-ELAP. Optimal aeration superficial velocity (u[subscript sg]) was found to agree with the literature at 3 cm s⁻¹ where the maximum cell density and specific growth rate from the semi-batch operation of LTCT-ELAP were approx. 11.9x10⁶ cell mL⁻¹ and 0.0846 h⁻¹, respectively. This was because at low [subscript sg] (&lt; 3 cm s⁻¹), the system was operated at low gas-liquid mass transfer which inherently could not allow high growth rate. On the other hand, high usg (&gt; 3 cm s⁻¹) caused too much cell damage and lowered the growth performance. only a slight decrease in maximum cell concentration was observed at u[subscript sg] of 4 cm s⁻¹ as this rather high [subscript sg] could see small bubbles into the downcomer and decreasing the light intensity. When compared with the internal loop airlift photobioreactor (ILAP), ELAP clearly provided a better growth performance due to a lower light shading effect. Owing to the fact that the cultivation in ELAP helped reduce the number of bubbles in the downcomer, this lessened the bubble shading effect which was the growth limiting factor in ILAP, and promoting a better light penetration to cells. Lastly, the pre-evaluation of the effect of CO₂ for the cultivation of C. calcitrans in the LTCT-ELAP demonstrated that, although cells of C. calcitrans could grow in the system with as much as 5% CO₂, the growth was not as good as when the cells were cultivated in normal air (without CO₂). This could be attributed to the high acidity level imposed by CO₂
DOI: 10.14457/cu.the.2008.1499
title: Comparative study of Ziegler-Natta catalyst synthesis for ethylene polymerization

description: Nowadays, polyethylene becomes more usage in olefin industries. Ziegler-Natta catalyst was used to synthesize polyethylene Therefore, it is important to develop this catalyst efficiently to obtain the high activity and can be used to synthesize polymer that we desire. For this research, MgCl2 synthesized by the recrystallization method and Mg(OEt)₂ synthesized by the chemical reaction method were chosen to investigate synthesis parameters which affect on the catalytic activity. Synthesis parameters include that paddle speed, holding temperature and dropping rate. The results showed that the paddle speed at 100 and 200 rpm gave the highest catalytic activity for recrystallization and chemical reaction method, respectively. For the recrystallization method, the holding temperature had little effect on activity and holding temperature at 90 ℃ exhibited the highest activity for the chemical reaction method. Dropping rate had only little effect on activity. Sensitivity of parameters on catalytic activity were compared both recrystallization and chemical reaction method. It was found that recrystallization method was more sensitive than chemical reaction method for paddle speed effect due to more viscosity. For holding temperature effect, chemical reaction method was more sensitive than recrystallization method because inactive species from conversion Mg(OEt)₂ to MgCl₂ can be dissolved back into the solvent at high temperature by chemical reaction method. Both recrystallization and chemical reaction methods were not sensitive to the dropping rate effect. The best synthesis catalyst condition of each method was used to compare activity. Activity from recrystallization method was higher than that from chemical reaction due to more amount of Ti³⁺ present.
DOI: 10.14457/cu.the.2008.1599
title: Components of bee venom in Apis dorsata and their effects on rat Rattus norvegicus

description: The amount of dried weight venom of A. dorsata is about 0.170 ± 0.016 mg per bee. Three of bee venom (BV) component (apamine, phospholipase A2, melittin) were found from RP-HPLC whereas the enzyme glycosyltransferease is a enzyme that found in BV component from MALDI-TOF. Three groups of rats were used in the experiment. Control group was injected with 0.1 ml in PBS into subcutaneous. Two treatment groups were injected with venom at concentration of 0.25 mg and 0.50 mg in 0.1 ml PBS respectively. After 2, 8 and 24 hours the rats were euthanized and liver, kidney and blood were collected for histological process. Liver cell show three majors respond to BV including blood congestion, sinusoidal space dilation and lipid accumulation in hepatocyte. BV cause local inflammation of liver cell. The result support by the increasing in amount of Kupffer cells. The renal cortex shows two major responds (proximal tubular degeneration and haemorrhage) and the renal medulla shows three major responds (collecting duct degeneration, haemorrhage and white blood cell infiltration). Increasing of neutrophils and decreasing of lymphocytes were found significant difference from control group. Suggest that BV has responding to immune of mammalian. These results suggested that BV was toxic to liver, kidney and blood tissue of rat.
DOI: 10.14457/cu.the.2008.1600
title: Copper removal from dilute aqueous solution by emulsion liquid membrane method

description: Copper extraction from dilute aqueous solution by emulsion liquid membrane method was studied. The membrane phase was consisted of LIX 984N as extractant and Span 80 as surfactant in kerosene. Internal aqueous phase was sulfuric acid solution. The effects of parameters such as feed pH, extraction temperature, stirring speed, surfactant concentration, extractant concentration, internal striping phase concentration and feed phase concentration were investigated. The experimental data were presented as plots of the ratio of the instantaneous copper concentration to the initial copper concentration versus time and tabulated as the percentage of copper removal with time. The optimum condition for this study was found to be at feed pH of 5, which was a predominant factor. The process was most efficient at 30°C with stirring speed of 400 rpm, 3 wt% of surfactant, 4 wt% of extractant and 2 M sulfuric acid. More than 99.7% of copper could be removed from the feed phase within 14 minutes when the optimum condition was used. Addition of 1 wt% of ethylene-propylene copolymer as viscosity improver was found to reduce membrane leakage at high speed of agitation. The third reusability of the membrane phase could be achieved with more than 97% copper removal.
DOI: 10.14457/cu.the.2008.1601
title: Determinants of foreign direct investment and its effects on trade and economic growth in Vietnam

description: Vietnam's phenomenal economic development has coincided with a substantial increase in FDI inflows and hence led researchers, including the author, to believe that increased inflows of FDI into Vietnam have had important implications for the country's trade and economic expansion over the past decades. This dissertation investigates factors determining foreign direct investment (FDI) inflows and the effects of FDI inflows on economic growth and trade in Vietnam and its different regions over the 1993-2006 period. The study reveals that wages, income per capita, GDP growth and accumulated FDI stock as well as openness to trade and special economic zones are important factors attracting FDI inflows into Vietnam. Human capital has not yet been a significant factor determining FDI inflows because FDI activities in Vietnam are mainly in labor-intensive industries in which a large number of skilled labor is not yet required. The existing physical infrastructure in Vietnam does not help attract FDI inflows either and this implies that an improvement in its quality is needed. Economic growth and FDI in Vietnam have a positively significant relationship. The beneficial effect on growth of FDI comes from stock of foreign capital that has been accumulated over the years. At the regional level, higher capital flow of foreign direct investmentis a major factor stimulating economic growth in the Northern region. The flow of superior technologies transferring from FDI firms can also help to increase the growth rate of the Central region by interacting with the region's open trade regime. The contribution of FDI to economic growth in the Southeastern region is explained by both foreign capital accumulation and new technologies and knowledge transferred from FDI enterprises through human capital. In all regions, inward FDI has a complementary relationship with Vietnam's exports, imports and total trade, implying that the FDIs are mostly of the vertical type. However, the patterns of the FDI-trade relationships between Vietnam and different partner countries show variations. To attract more FDI inflow into Vietnam and sustain the economic development, Vietnam has to improve the country's income per capita, GDP growth rate and trade openness. The Vietnamese government needs to pay more attention to improved quality of human capital, physical infrastructure as well as putting effect to enhance the investment environment in order to attract FDI inflows into a more tecnology-intensive line of production in the future.
DOI: 10.17171/2-6-19-2
title: 3D model of the Hagia Sophia
title: Nave

description: Hagia Sophia 3D
DOI: 10.17171/2-6-23-2
title: 3D model of the Hagia Sophia
title: Small Apse

description: Hagia Sophia 3D
DOI: 10.17632/2vbrg3w4p3.1
title: Central dogma rates and the trade-off between precision and economy

description: The tables of this dataset contain the raw data (RPKMs from RNAseq and ribosomal profiling) which served the basis to estimate transcription and translation rates on which we built our theoretical analysis. These estimated transcription and translation rates are also contained in the tables. In addition, the tables contain extra fields (such as coefficient of variation on protein abundance fluctuations) needed to reproduce Fig. 3B and 4C. The first sheet of each table contains a description of the columns of the table.