• Journal of the Korean Ceramic Society
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• v.31 no.11
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• pp.1387-1395
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• 1994

Re-hydration properties of heated and ground CaO-SiO2-H2O system were studied under hydrothermal condition in order to examine the possibility of recycling ALC waste as raw materials of ALC. Powder of calcium silicate hydrates and ALC waste without heat treatment did not show further hydration while those of heat-treated at proper temperature showed re-hydration properties under hydrothermal condition. The lath-like shape of initially synthesized tobermorite was gradually turned into small debris during heating and plate-like tobermorite was crystallized during re-hydration of the heated powders. Heated and ground ALC waste could be added to natural raw mix for ALC at the ammount up to 20% with increased compressive strength and up to 30% with slightly decreased compressive strength. The optimum heating temperature of ALC for recycling was about 50$0^{\circ}C$.

• Progress in Superconductivity
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• v.3 no.2
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• pp.188-192
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• 2002

To introduce flux pinning center in HTS-BSCCO system, nano-size MgO particles were uniformly distributed within the Bi-2223 grain by partial hydration of MgO. The existing method MgO doped Bi-2223 used nato-size MgO powders, which resulted in agglomeration during mixing or grain growth during heat-treatment due to the high surface energy of the fine particles. By hydration of the MgO surface, the agglomeration of the MgO powders was avoided and the size of remaining MgO core was controlled by changing hydration medium and time. The thin film obtained by spin coating of (Bi_$1.8/Pb_{0.4}$)$Sr_2$$_{Ca}$$2.2/Cu_3$ $O_{y}$ nitrate solution mixed with hydrated MgO showed the even distribution of nano-size MgO particles in the Bi-2212 grains.s.s.

• Computers and Concrete
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• v.11 no.1
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• pp.39-49
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• 2013

The use of ground fly ash in concrete can increase the risk of slump loss due to the drastic surface change of the particles after the grinding treatment and the accelerated reaction compared to the untreated ash. This study is aimed at the early age hydration and time-dependent rheology changes of cement paste containing ground fly ash. An original fly ash is ground into different fineness and the hydration of cement paste containing the ground fly ash is monitored with the ultrasound propagation method. The zeta potentials of the solid particles are measured and the changes of rheological parameters of the cement pastes with time are analyzed with a rheometer. A particle packing model is used to probe packing of the solid particles. The results show that the early age hydration of the paste is strongly promoted by replacing Portland cement with fly ash up to 30 percent (by mass), causing increase of the yield stress of the paste. The viscosity of a paste containing ground fly ash is lower than that containing the untreated ash, which is explained by the denser packing of the solid particles.

• Journal of Radiopharmaceuticals and Molecular Probes
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• v.8 no.2
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• pp.151-156
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• 2022

Liposomes are bilayered particles that are surrounded by an aqueous solvent with amphiphilic substances such as phospholipids. Liposomes have the potential to overcome the limitations of physiochemical properties of existing drugs, and are therefore widely used in research for the treatment of many diseases, especially cancer. Currently, there are many liposome manufacturing methods that use various lipids and amphiphiles. Among them, the thin film-hydration method is a traditional and very simple method to prepare liposomes by hydrating a dry lipid film in an aqueous solvent, which has been widely used in the laboratory until recently. Recently, approaches to new nuclear imaging agents and radiotherapy by loading radioactive isotopes inside liposomes have been actively studied. In this review, we would like to discuss considerations for preparing liposomes using the thin film-hydration method.

• Advances in pediatric surgery
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• v.8 no.1
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• pp.68-70
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• 2002

Enterocolitis associated with Hirschsprung's disease has been a major cause of morbidity and even mortality, and before and after definitieve surgical treatment. It shows typical clinical characteristics, however, its pathogenesis has been poorly understood. Treatment is diverse, and consists of conservative tertment with intravenous hydration, antibiotics and rectal wash out, and surgical tertment with temporatory enterostomy, and other surgical procedures.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.9
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• pp.5089-5093
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• 2013

Objective: This study aimed to investigate the effects of BCRP expression on tumor recurrence, metastasis and treatment tolerability. Methods: A VX2 rabbit liver tumor model was established. Division was randomly into 4 groups: namely saline control group; A group, given hydration lipiodol; B group, Ad-p53; and C group, Ad-p53+hydration lipiodol. After the intervention, samples were collected to detect the BCRP, MMP-2, VEGF and PCNA. Results: The expression of BCRP, MMP-2, PCNA and VEGF in tumors in Group A had no significant difference when compared with the control group, while in B and C group, the values were significantly lower (P<0.05). BCRP positive expression in metastatic lesions significantly increased (P<0.05), and was correlated with MMP-2 ($X^2=6.172$, P=0.0131). Conclusions: BCRP may play an important role in mediating liver cancer multidrug resistance to chemotherapy, and may be correlated with tumor recurrence and metastasis, which leads to weakened treatment effect. Ad-P53 can down-regulate the expression of related genes, playing a role in multidrug resistance reversal and increased sensitivity in liver cancer treatment.

• Proceedings of the Materials Research Society of Korea Conference
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• 2002.05a
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• pp.93-93
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• 2002

• Korean Journal of Clinical Pharmacy
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• v.29 no.3
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• pp.166-172
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• 2019

Background: Hypercalcemia is an important metabolic emergency condition in cancer patients. Bisphosphonate is the treatment of choice for hypercalcemia, whereas calcitonin and hydration with furosemide are recommended for acute supportive therapy. However, data regarding real-world treatment patterns and outcomes of pharmacological treatments are limited. Therefore, we aimed to investigate the treatment patterns and clinical outcomes of hypercalcemia treatment in solid tumor patients. Methods: Electronic medical records of 123 adults with solid cancers and albumin-corrected calcium levels >10.5 mg/dL or ionized calcium levels >1.35 mmol/L were reviewed. We retrospectively analyzed the pharmacological treatment and recovery rate according to the severity of hypercalcemia. Results: A total of 177 cases were identified, of which 49 were not treated and 30 were treated with hydration only. In moderate-to-severe cases, 86.5% received pharmacological treatment. Thirty-four cases (19.2%) were treated with bisphosphonate alone and 58 cases (32.8%) were treated with bisphosphonate and calcitonin. In mild hypercalcemia cases, the recovery rate was higher for those receiving hydration only or pharmacological treatment (79.7%) than for those receiving no treatment (61.4%, p = 0.041). Most moderate-to-severe cases were treated with medication and of those treated, 56.3% recovered. The recovery rate was lower in those treated with bisphosphonate alone (38.2%) than in those who underwent calcitonin combination treatment (73.7%, p = 0.001). Conclusions: Bisphosphonate combined with calcitonin was found to be more effective than bisphosphonate alone for the treatment of moderate-to-severe hypercalcemia. Considering the current shortage of calcitonin, further efforts are required to ensure its stable supply.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.21 no.2
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• pp.126-141
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• 2008

Objective : This clinical research was conducted to test patients with Atopic Dermatitis by external application with Yeongyuseungmatang in cosmetics. Methods : We gave scores to 33 patients who visited the Dept. of Oriental Medical Opthalmology & Otolaryngology & Dermatology of Semyung Jecheon Oriental Medical Hospital from April 17th, 2008 to June 12th. Seventeen patients were treated with Yeongyuseungmatang(Experimental group) and sixteen patients were treated with Atopico skin care cream(Control group) for 4weeks. We observed change of total IgE, eosinophil count, Skin Temperature, Transepidermal Water Loss(TEWL), Skin Hydration and Skin pH. Also Clinic Index of Atopic Dermatitis(SCORAD Index) and global assesment of efficacy were used to evaluate the effects of Yeongyuseungmatang. Statistical analysis was performed by using frequency analysis and descriptive analysis. Statistical significance was achieved if the probability was less than 5%(p<0.05). Results : 1. After 4 weeks of external application treatment, SCORAD Index in Yeongyuseungmatang was significant statistically decreased compared with control group. 2. After 4 weeks of external application treatment, eosinophil count in Yeongyuseungmatang was significant statistically decreased compared with control group but total IgE was very increased both Yeongyuseungmatang and control group. 3. Statistically, Yeongyuseungmatang and control group didn't showed significant effect on Skin Temperature was measured by Thermometer SM815. 4. Transepidermal Water Loss(TEWL) in Yeongyuseungmatang was significant statistically decreased compared with control group measured by Tewameter TM300. 5. Skin Hydration in Yeongyuseungmatang was significant statistically increased compared with control group measured by Corneometer CM825. 6. Statistically, Yeongyuseungmatang and control group didn't showed significant effect on Skin pH was measured by Skin-pH-Meter PH905. 7. After 4 weeks of external application treatment, Yeongyuseungmatang showed significant effect on global assesment of efficacy. Conclusion : Considering the above results, we can speculate that cosmetics with Yeongyuseungmatang has some therapeutical effects in mitigating the symptoms of atopic dermatitis.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.10a
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• pp.87-87
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• 2018

This study was conducted to investigate the effects of osmotic priming, liquid smoke (LS), sonication and modified drum priming treatments to improve the germination speed and uniformity of pepper seeds for high quality export seeds. Seeds were treated in 0.5, 1.0, 5.0, 10% LS solution only or with 100mM $K_2SO_4$ solution for 6days at $15^{\circ}C$. Sonication treatment was performed for 5, 10, and 20 minutes at an intensity of 5.2, 10.4, 15.7, 21.0, 26.1kHz in water at $15^{\circ}C$. After sonication treatment, seeds were primed with water or 100mM $K_2SO_4$ for 4days. 40, 50 and 60% seed moisture content (SMC) of hydrated seeds were incubated for 84, 96 and 108h in a container with a relative humidity of 99% at 26rpm for a modified drum priming treatments. 0.5% LS treatment with water or 100mM $K_2SO_4$ priming showed significant effects with 71% GP (9.0days MGT) and 66% GP (7.4days MGT), respective, while untreated seeds resulted in only 61% GP and 10days MGT. The healthy seed % was increased by 24% by $K_2SO_4$ priming with LS treatment compared to untreated seeds. However, sonication treatment showed less germination or no difference compared to untreated seed, regardless of intensity and treatment time. The modified drum priming treatment (108h incubation after 50% SMC hydration) significantly improved the GP (on the $4^{th}$days after sowing), germination rate (GR), and MGT to 65%, $28%{\cdot}day^{-1}$, and 3.6days, whereas untreated seed resulted only 7% GP, $17%{\cdot}day^{-1}$ GR and 5.9days MGT. Thus, modified drum priming treatment effectively improved seed germination and is considered as an industrially promising treatment methods considering the shortening of the treatment period and environment-friendly aspects.