• Nuclear Engineering and Technology
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• 제54권6호
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• pp.1991-2003
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• 2022

The problem of water contamination by long-living cesium and strontium radionuclides is an urgent environmental issue. The development of facile and efficient technologies based on nanostructured adsorbents is a perspective for selective radionuclides removal. In this regard, current work aimed to obtain the nanostructured magnetic zeolite composites with high adsorption performance to cesium and strontium ions. The optimal conditions of hydrothermal synthesis were established based on XRD, SEM-EDX, N₂ adsorption-desorption, VSM, and batch adsorption experiment data. The role of chemical composition, textural characteristics, and surface morphology was demonstrated. The monolayer ionexchange mechanism was proposed based on adsorption isotherm modeling. The highest Langmuir adsorption capacity of 229.6 and 105.1 mg/g towards cesium and strontium ions was reached for composite obtained at 90 ℃ hydrothermal treatment. It was shown that magnetic characteristics of zeolite composites allowing to separate spent adsorbents by a magnet from aqueous solutions.

• Proceedings of the Korean Magnestics Society Conference
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• 한국자기학회 2010년도 임시총회 및 하계학술연구발표회
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• pp.186-188
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• 2010

• Journal of Korean Medicine Rehabilitation
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• 제21권4호
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• pp.87-96
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• 2011

Objectives: This study aims to systematically evaluate the effectiveness of Eastern-Western integrative medicine for musculoskeletal disorders compared with Eastern or Western Medicine. Methods: Systematic sea-mes of 9 major Korean databases were conducted for articles published up to July 2011. Searching keyword was "Integrative Medicine". Prospective studies dealt with musculoskeletal disorders by Eastern-Western integrative medicine were included. Quality assessment of included studies was evaluated by Cochrane risk of bias tool. Results: 470 studies in total were seamed, Amalg them 7 studies met our inclusion criteria(3 randomized controlled clinical trials, 2 non-randomized controlled trials and 2 uncontrolled clinical trials). Included studies dealt with lumbar pan(3), shoulder pain(2), pain after traffic injury(1), spinal compression fracture(1). Eastern-Western integrative medicine showed better or equal effect for the treatment of various muscloskeletal disorders compared with Eastern or Western medicine alone. Conclusions: There is very weak evidence for the effectiveness of Eastern-Western integrative medicine for musculoskeletal disorders compared with Eastern or Western medicine alone. Well designed randomized controlled trials with rigorous methodology are needed to evaluate the effectiveness of Eastern-Western integrative medicine objectively in the future.

• Korean Journal of Materials Research
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• 제26권1호
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• pp.1-7
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• 2016

The graphene oxides (GOs) were tested as a fluorescent quencher in the field of DNA-diagnostics. The various suspensions of GO nanoplates were prepared by changing the synthesis conditions. The suspensions were stable for at least 6 weeks by differing degrees of functionalization of various oxygen-containing groups of atoms. Depending on the properties of GO nanoplates, their fluorescent quenching abilities, which were determined by the amount of the tagged immobilized oligonucleotide, were also changed. GO suspension synthesized at $75^{\circ}C$ of reaction mixture showed the fluorescent quenching of 16.39 nmol/mg, which would be a potential substitution of molecular fluorescent quencher in test-systems for DNA-diagnostics.

• Railway Journal
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• 제12권2호
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• pp.24-29
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• 2009

• Nuclear Engineering and Technology
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• 제54권9호
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• pp.3250-3259
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• 2022

A new approach to the use of rice straw as a difficult-to-recycle agricultural waste was proposed. Potassium aluminosilicate was obtained by spark plasma sintering as an effective material for subsequent immobilization of ¹³⁷Cs into a solid-state matrix. The sorption properties of potassium aluminosilicate to ¹³⁷Cs from aqueous solutions were studied. The effect of the synthesis temperature on the phase composition, microstructure, and rate of cesium leaching from samples obtained at 800-1000 ℃ and a pressure of 25 MPa was investigated. It was shown that the positive dynamics of compaction was characteristic of glass ceramics throughout the sintering. Glass ceramics RS-(K,Cs)AlSi₃O₈ obtained by the SPS method at 1000 ℃ for 5 min was characterized by a high density of ~2.62 g/cm³, Vickers hardness ~ 2.1 GPa, compressive strength ~231.3 MPa and the rate of cesium ions leaching of ~1.37 × 10^-7 g cm^-2·day^-1. The proposed approach makes it possible to safe dispose of rice straw and reduce emissions into the atmosphere of microdisperse amorphous silica, which is formed during its combustion and causes respiratory diseases, including cancer. In addition, the obtained is perspective to solve the problem of recycling long-lived ¹³⁷Cs radionuclides formed during the operation of nuclear power plants into solid-state matrices.

• Asian Pacific Journal of Cancer Prevention
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• 제15권22호
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• pp.9831-9834
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• 2014

Background: The prevalence of esophageal cancer (EC) with second primary cancers (SPC) is increasing worldwide. This study was aimed to understand the clinical features of EC patients with SPC in the Taiwanese population. Materials and Methods: Clinical and laboratory data for 180 EC patients with or without SPC were collected between January 2009 and December 2013. Information on treatment approaches, location of SPCs and ABO blood type were also collected and stratified. Results: The most common SPC in EC patients was hypopharyngeal cancer, followed by laryngeal cancer and hepatocellular carcinoma in our study. Malignancies of colon, prostate and lung were also found. There was a significant higher portion of blood type A in the EC patients with SPC compared with those without (42.4% vs 19.5%, P=0.006). Conclusions: The frequency and SPC site distribution and blood type A should be considered in clinical evaluation of EC patients with a high risk of developing SPC in the Taiwanese population.

• Journal of Korean Medicine Rehabilitation
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• 제28권1호
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• pp.53-60
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• 2018

Objectives The purpose of this study is to analyze research trends on Eastern-Western integrative medicine in Korea. Methods We searched the studies on Eastern-Western integrative medicine in 5 Korean web database (NDSL, KoreanTK, KISS, OASIS, DBPIA). 66 research papers we founded. Results 13 papers were published at 2010. The studies on Eastern-Western integrative medicine were mainly published in the Journal of Society of Preventive Korean Medicine. 24 papers were case report, include 7 studies on neurology, 4 studies on each oncology and dermatology, 2 studies on each gastroenterology and ophthalmology and otorhinolaryngology, 1 study on each obstetrics and gynecology and endocrinology and nephrology. In 24 case reports, 7 kinds of Eastern medicine treatment method and 4 kinds of Western medicine treatment method were existed. In case reports, medication (100%), herbal medicine, acupuncture (95.8%), moxibustion (58.3%), cupping, infusion solution (25%), pharmacopuncture (20.8%), physical therapy (12.5%), laser, injection, rehabilitation (8.3%) were used. Conclusions In this study, we analyzed the trends of Eastern-Western integrative medicine in korea from 2010 to 2017. There were various studies about Eastern-Western integrative medicine. In case reports, Eastern-Western integrative medicine tend to concentrated on treatment not diagnosis. Not only treatment but also diagnosis is needed in Eastern-Western integrative medicine studies.

• Nuclear Engineering and Technology
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• 제53권7호
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• pp.2289-2294
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• 2021

In the present study, an original spark plasma sintering-reactive synthesis (SPS-RS) method for minerallike ceramic materials based on SrAl₂Si₂O₈ feldspar-like skeleton structure was used for the first time, promising solid-state matrices for reliable immobilization of high-energy ⁹⁰Sr. The method is based on the "in-situ" reaction of a mixture of SrO, Al₂O₃ and SiO₂ oxides when heated by a unipolar pulsed current under compacting pressure. The phase and elemental composition structure were studied. The dynamics of the consolidation of the reaction mixture of oxides was studied in the range of 900-1200 ℃. The study found the temperature of the high-speed (minutes) SPS-RS formation of single-phase SrAl₂Si₂O₈ composition ceramic in the absence of intermediate reaction products with a relative density of up to 99.2% and compressive strength up to 145 MPa and a strontium leaching rate of 10^-4g/cm²·day.

• Korean Circulation Journal
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• 제52권11호
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• pp.851-852
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• 2022