Structural dynamics of keyword networks: Liquid crystal display and plasma display panel cases

Yang, H.,Jung, W.S. Elsevier Science Publishers 2016 Journal of Engineering and Technology Management Vol.40 No.-

<P>This study focuses on understanding scientific evolution by using keyword co-occurrence networks, where keywords appearing in a scientific article are linked with a weight equal to the number of co-occurrences. To characterize structural changes of the network, we examine distributions of sums of weights by node over time. In particular, a change of power-law behavior is utilized to explore scientific evolution, such as emerging scientific paradigms and advancing normal science. As an illustration of the method used, the development of Liquid Crystal Displays (LCDs) and Plasma Display Panels (PDPs) is tracked. We detect two-tiered power-law distributions in the initial stage of scientific growth in both technologies due to differences in research intensity between two groups. The groups of keywords more likely to attract researchers' interest than others are incrementally developed until the mid-2000s to overtake those prior. Finally, we can capture a merging point of the dichotomous structure of PDPs but LCDs maintain the structural separation throughout the adjustment area. We expect that this structural investigation of keyword co-occurrence networks provides an indicator to diagnose the research evolution in that field. (C) 2016 Published by Elsevier B.V.</P>

Description and classification for facilitating interoperability of heterogeneous data/events/services in the Internet of Things

Yim, H.J.,Seo, D.,Jung, H.,Back, M.K.,Kim, I.,Lee, K.C. Elsevier Science Publishers 2017 Neurocomputing Vol.256 No.-

<P>The Internet of Things (loT) refers to an infrastructure that integrates things over standard wired/wireless networks and allows them to exchange information with each other. The loT is a very complex heterogeneous network, enabling seamless integration of these things is a huge challenge. A publish/subscribe method of integration can be formulated to solve the problems of interconnecting billions of heterogeneous things. In our work, an IoT framework that uses an abstraction layer that decouples an application from the service calls and network interfaces is required to send and receive messages on a particular thing. This paper provides definitions and classifications for heterogeneous data/events/services according to the properties of the things in order to integrate them into a framework for description. Based on these definitions and classifications, heterogeneous data/events/services in the loT were integrated via topic description through the Data Distribution Service (DDS) middleware standard for real-time publish/subscribe. This paper also concludes with general remarks and a discussion of future work. (C) 2017 Elsevier B.V. All rights reserved.</P>

WITHDRAWN: Spectroscopic characterization of selected functionalized fullerenes - IR absorption and Raman scattering studies

Lewandowska, K.,Barszcz, B.,Graja, A.,Nam, S.Y.,Han, Y.S.,Kim, T.D.,Lee, K.S. Elsevier Science Publishers 2014 Materials chemistry and physics Vol.148 No.3

The Publisher regrets that this article is an accidental duplication of an article that has already been published in <Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 118, (2014) 204 - 209>, http://dx.doi.org/<10.1016/j.saa.2013.08.102>. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.

Effect of tempering methods on quality changes of pork loin frozen by cryogenic immersion

Choi, E.J.,Park, H.W.,Chung, Y.B.,Park, S.H.,Kim, J.S.,Chun, H.H. Applied Science Publishers ; Elsevier Science Ltd 2017 Meat science Vol.124 No.-

<P>The quality characteristics of pork loin frozen by cryogenic immersion were examined, such as the drip loss, cooking loss, water holding capacity, moisture content, protein solubility, lipid and protein oxidation, color, and microstructure, and compared after different tempering methods: radio frequency (27.12 MHz), water immersion, forced-air convection, and microwave tempering. Forced-air tempering was the most time-consuming process, whereas electromagnetic energy methods (radio frequency and microwave) were the shortest. The tempering rate of radio frequency at 400 W was 5 and 94 times greater than that obtained with water immersion and forced-air tempering, respectively. The drip loss, water holding capacity, moisture content, color, and microstructure of pork samples all declined as a result of microwave tempering. By contrast, the least degree of changes in the drip loss, microstructure, and color of the pork loin samples was obtained with radio frequency tempering, suggesting its potential application in providing rapid defrosting without quality deterioration in the frozen meat industry. (C) 2016 Elsevier Ltd. All rights reserved.</P>

Identification and quantification of myosin heavy chain isoforms in bovine and porcine longissimus muscles by LC-MS/MS analysis

Kim, G.D.,Jeong, T.C.,Cho, K.M.,Jeong, J.Y. Applied Science Publishers ; Elsevier Science Ltd 2017 Meat science Vol.125 No.-

<P>To identify and quantify the myosin heavy chain (MHC) isoforms in porcine and bovine longissimus thoracis (LT) muscles, LC-MS/MS and label-free quantification were conducted. 2a, 2x, 2b and slow isoforms were identified in porcine LT muscle, whereas bovine LT muscle contained 2a, 2x and slow isoforms. The highest peak intensity (4432%) of MHC 2b was observed in porcine LT muscle, whereas the peak intensity of MHC 2a was the highest (71.15%) in bovine LT muscle (p < 0.05). MHC-based fiber compositions for porcine and bovine LT were also the highest in types BB (61.13%) and IIA (61.90%), respectively (p < 0.05). Spectral count and peak intensity had positive correlations with MHC-based fiber composition (p < 0.01), however the spectral count and peak intensity of total peptides were not acceptable for MHC quantification because of the limited reliability of the protein and common peptide, respectively. Therefore, the peak intensity of unique peptides would be the most acceptable trait for WHC quantification. (C) 2016 Elsevier Ltd. All rights reserved.</P>

Teriyaki sauce with carvacrol or thymol effectively controls Escherichia coli O157:H7, Listeria monocytogenes, Salmonella Typhimurium, and indigenous flora in marinated beef and marinade

Moon, H.,Kim, N.H.,Kim, S.H.,Kim, Y.,Ryu, J.H.,Rhee, M.S. Applied Science Publishers ; Elsevier Science Ltd 2017 Meat science Vol.129 No.-

<P>An effective bactericidal cold-marinating method for beef products is described, exploiting the synergism between soy sauce and natural compounds (carvacrol, CV or thymol, TM) to reduce microbiological risks. Beef slices inoculated with Escherichia coli 0157:H7, Listeria monocytogenes, and Salmonella Typhimurium (3.1-3.5 log CFU/g) were marinated in a teriyaki sauce with or without CV and TM (0.3 and 0.5%). After 1, 3, and 7 days at 4 degrees C, indigenous microflora population, color, lipid oxidation, marinade uptake, and pH of marinated beef and leftover marinade samples were examined. Teriyaki sauce alone did not reduce or inhibit any of the target pathogens or indigenous bacteria, while 0.5% CV- or TM-containing teriyaki sauce inactivated all inocula without recovery within 7 days (p < 0.05). The pathogens relocated from the beef into the leftover marinade (3.0-3.4 log CFU/mL) were also completely inactivated. The treatment inhibited growth of indigenous aerobic bacteria (p < 0.05) and inactivated coliform bacteria. Physicochemical parameters were not significantly affected (p > 0.05). (C) 2017 Elsevier Ltd. All rights reserved.</P>

Reply to: ''Transarterial therapies for hepatocellular carcinoma (HCC): A long way towards standardization''

Park, J.W.,Kim, H.B.,Lee, I.J. Elsevier Science Publishers 2013 Journal of hepatology Vol.58 No.1

Phase II trial of proton beam accelerated partial breast irradiation in breast cancer

Chang, J.H.,Lee, N.K.,Kim, J.Y.,Kim, Y.J.,Moon, S.H.,Kim, T.H.,Kim, J.Y.,Kim, D.Y.,Cho, K.H.,Shin, K.H. Elsevier Science Publishers 2013 Radiotherapy and oncology Vol.108 No.2

Background and purpose: Here, we report the results of our phase II, prospective study of proton beam accelerated partial breast irradiation (PB-APBI) in patients with breast cancer after breast conserving surgery (BCS). Materials and methods: Thirty patients diagnosed with breast cancer were treated with PB-APBI using a single-field proton beam or two fields after BCS. The treatment dose was 30 cobalt gray equivalent (CGE) in six CGE fractions delivered once daily over five consecutive working days. Results: All patients completed PB-APBI. The median follow-up time was 59months (range: 43-70months). Of the 30 patients, none had ipsilateral breast recurrence or regional or distant metastasis, and all were alive at the last follow-up. Physician-evaluated toxicities were mild to moderate, except in one patient who had severe wet desquamation at 2months that was not observed beyond 6months. Qualitative physician cosmetic assessments of good or excellent were noted in 83% and 80% of the patients at the end of PB-APBI and at 2months, respectively, and decreased to 69% at 3years. A good or excellent cosmetic outcome was noted in all patients treated with a two-field proton beam at any follow-up time point except for one. For all patients, the mean percentage breast retraction assessment (pBRA) value increased significantly during the follow-up period (p=0.02); however, it did not increase in patients treated with two-field PB-APBI (p=0.3). Conclusions: PB-APBI consisting of 30 CGE in six CGE fractions once daily for five consecutive days can be delivered with excellent disease control and tolerable skin toxicity to properly selected patients with early-stage breast cancer. Multiple-field PB-APBI may achieve a high rate of good-to-excellent cosmetic outcomes. Additional clinical trials with larger patient groups are needed.

The size of the metastatic lymph node is an independent prognostic factor for the patients with cervical cancer treated by definitive radiotherapy

Song, S.,Kim, J.Y.,Kim, Y.J.,Yoo, H.J.,Kim, S.H.,Kim, S.K.,Lim, M.C.,Kang, S.,Seo, S.S.,Park, S.Y. Elsevier Science Publishers 2013 Radiotherapy and oncology Vol.108 No.1

Background and purpose: Lymph node (LN) metastasis is a well-known prognostic factor of the cervical cancer. In the current study, the size of metastatic LN was evaluated for its significance in the patients treated with definitive radiotherapy. Materials and methods: LN metastasis was evaluated for the 268 consecutive patients. The short-axis diameters of the largest LN were measured on magnetic resonance images for the 155 patients with LN metastasis. All the patients were classified into three groups: the negative lymphadenopathy (group N), the small (<15mm) lymphadenopathy (group SP), and the large (≥15mm) lymphadenopathy (group LP). Results: Patients in the group LP showed significantly lower survival rates than the groups N and SP (5-year overall survival rates of 89%, 82%, and 58%, for groups N, SP, and LP, respectively, P<0.001; 5-year disease-free survival rates of 80%, 67%, and 50%, respectively, P<0.001). Regarding the pattern of failure, patients in the group LP showed inferior regional control rates and higher distant metastasis. Conclusion: The current study shows that the patients with large metastatic LNs are at increased risk of dying from early distant metastasis with substantial number of combined regional failures. Adoption of more effective systemic treatment as well as high radiotherapy dose for LNs may improve cure rates for these patients.

¹H and ¹³³Cs nuclear magnetic resonance study of the NH₄ and Cs occupation rates of mixed (NH₄)_2-xCs_xZnCl₄ (x=0, 1, and 2) crystals

Elsevier Science Publishers [etc.] 2012 Chemical physics Vol.400 No.-

The NMR spectra and the spin-lattice relaxation times, T<SUB>1</SUB>, of the <SUP>1</SUP>H and <SUP>133</SUP>Cs nuclei in (NH<SUB>4</SUB>)<SUB>2-x</SUB>Cs<SUB>x</SUB>ZnCl<SUB>4</SUB> (x=0, 1, and 2) single crystals were determined by using NMR spectroscopy. We investigated the crystallographic structures of these crystals by determining the NH<SUB>4</SUB> and Cs occupation probabilities of the two cationic sites. Our NMR experimental results confirm that in (NH<SUB>4</SUB>)<SUB>2</SUB>ZnCl<SUB>4</SUB> there are two crystallographically inequivalent NH<SUB>4</SUB> groups, NH<SUB>4</SUB>(1) and NH<SUB>4</SUB>(2), occupying the A<SUB>1</SUB> and A<SUB>2</SUB> sites, and that in Cs<SUB>2</SUB>ZnCl<SUB>4</SUB> there are two crystallographically inequivalent Cs ions, Cs(1) and Cs(2), occupying the A<SUB>1</SUB> and A<SUB>2</SUB> sites. Both types of NH<SUB>4</SUB> ions and both types of Cs ions are found in mixed NH<SUB>4</SUB>CsZnCl<SUB>4</SUB> crystals; the occupation rates of the two different sites are 1 and 1 for Cs(1) and Cs(2), respectively, and 1 and 1 for NH<SUB>4</SUB>(1) and NH<SUB>4</SUB>(2), respectively.