Impacts of collaboration networks, operational performance and reverse logistics determinants on the performance outcomes of the auto parts industry

The objectives of this study were to develop a framework of the collaboration network, operational performance, and reverse logistics determinants on the performance outcomes of the auto parts industry, and to study the direct, indirect, and overall effects of the factors that influence the performance outcomes of the auto parts industry. This quantitative research utilized a questionnaire as the tool for data collection, which was completed by the managers in the auto parts industry from 320 companies. According to the analysis with the Structural Equation Modeling (SEM), it was found that the collaboration networks, operational performance, and reverse logistics positively affect the performance outcomes; whereas, the collaboration networks mainly affect the development of organizations by causing performance outcomes to continue growing unceasingly, including the enhancement of sustainable competitive capacity and the operational results of the auto parts industry.fi=vertaisarvioitu|en=peerReviewed

Traitor: associating concepts using the world wide web

We use Common Crawl's 25TB data set of web pages to construct a database of associated concepts using Hadoop. The database can be queried through a web application with two query interfaces. A textual interface allows searching for similarities and differences between multiple concepts using a query language similar to set notation, and a graphical interface allows users to visualize similarity relationships of concepts in a force directed graph

Measurement of 129 I Radioactivity in Groundwater of Radioactive Waste Disposal Site

The investigation of the environmental radioactivity around the radioactive waste disposal site in Gyeongju is being carried out. The radioactivity of 129 I in groundwater and seaweed are to be measured. The analytical method to measure the radioactivity of 129 I in aqueous media was established. This method contains oxidation-reduction reaction, anion-exchange separation and palladium precipitation. The 129 I radioactivity in the PdI 2 precipitates was measured by using low-energy gamma spectrometer. The counts of peak at 39.6 keV of gamma energy were used for determination of 129 I radioactivity. The chemical recovery was determined by the weights of PdI 2 precipitates. The deionized water and groundwater spiked with 129 I tracer were tested. In the case of deionized water, the relative deviations of measured concentration from spiked one are from 1.1 to 10.7%. The relative deviations of measured radioactivity from spiked one in the groundwater experiments are 2.9 and 3.7%. The measured concentration is in good agreement with spiked one. The groundwater sampled from radioactive waste disposal site was tested. The concentrations of 129 I in the groundwater are below minimum detectable activities of 36.7 and 36.6 mBq/L

Impact of Livelihood Diversification on Rural Households’ Income: The Case of Gamo Zone, Southern, Ethiopia

Livelihood diversification strategy is playing an important role to generate rural household’s income. This study focused on the impact of livelihood diversification on rural household’s income in Kamba and Arbaminch Zuria woreda in Gamo Zone, Southern Ethiopia. The study is conducted by using a cross-sectional research approach. This study employed multi-stage random sampling technique, a sample size of 400 household individuals from 6 sample kebeles were selected. Inferential statistics wereused to examine the impact of livelihood diversification on households’ income by using propensity score matching model (PSM).The econometric analysis result demonstrated thatout of 10 hypothesized explanatory variables, 6 variables which are age, sex, and religious, education in year, extension service and access to market were found to have significant impact on livelihood diversification.Age and Religious influenced the probability of participation in diversification positively and significantly at 5% level. Whereas the education in year were determined the participation of diversification positively and significantly at (p<0.001). And sex affected participation negatively at 10% significance level. On the other hand Extension Service and Access to Market affected participation negatively at 1% and 5% significance level, consecutively. Therefore, the findings of this imply that rural households’ development policies should consider livelihood diversification is the right way to improvethe rural household’s income. Keywords: Livelihood; Diversification; income; PSM; Ethiopia. DOI: 10.7176/JESD/11-23-02 Publication date: December 31st 202

การประยุกต์ใช้ทฤษฎีฟังก์ชันนัลความหนาแน่นสำหรับเคมีซูปราโมเลคิวลาร์ และวัสดุนาโนApplication of Density Functional Theory for Supramolecular Chemistry and Nanomaterial

บทคัดย่อเคมีเชิงคำนวณ เป็นวิธีหนึ่งที่สามารถใช้อธิบายพฤติกรรมของโมเลกุลได้ มีงานวิจัยในทางเคมีจำนวนมากในปัจจุบันที่ใช้ การศึกษาเชิงทฤษฎี บทความนี้ได้นำเสนอการศึกษาโมเลกุลซูปรา และ วัสดุนาโนโดยการคำนวณทางเคมีควอนตัมภายใต้ทฤษฎีฟังก์ชันนัลความหนาแน่น โดยได้รายงานสมบัติเชิงโครงสร้าง ออร์บิทัลของโมเลกุล สมบัติทางเทอร์โมไดนามิกส์ พลังงานก่อกัมมันต์ และสมบัติทางอิเล็กทรอนิกส์ของโมเลกุลดังกล่าวAbstractComputational chemistry can be used to describe molecular behavior. A large number of recent chemical researches have been performed by using theoretical study. In this article, investigation of supramolecules and nanomaterials by using the quantum chemistry calculations under the density functional theory has been presented.  Structural properties, molecular orbitals, thermodynamics, activation energies and electronic properties of these molecules are reported

Addition of Diazomethane to Armchair Single-walled Carbon Nanotubes and Reaction Sequences: A Computational Study

The sidewall additions of diazomethane to (n, n), n = 3-10 armchair single-walled carbon nanotubes (SWCNTs) on two different orientations of C-C bonds have been studied using the ONIOM(B3LYP/6-31G(d):PM3) approach. The binding energies of SWCNTs complexes with CH2N2, CH2 and their transition-,state structures were computed at the B3LY-P/6-31G(d) level. The effects of diameters of armchair SWCNTs on their binding energies were studied. Relative reactivities of all the SWCNTs and their complexes based on their frontier orbital energies gaps are reported. (c) 2007 Elsevier B.V. All rights reserved