• Title/Summary/Keyword: additives

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The Effect of Medicinal Plants with Additives on Storage Characteristics of Sausage (생약성분을 첨가한 소시지의 저장성에 대한 연구)

  • 임혜경;조은자
    • Journal of the East Asian Society of Dietary Life
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    • v.12 no.3
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    • pp.249-257
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    • 2002
  • This study was conducted to investigate the effects of medicinal plants with additives on storage characteristics of sausage. The water activity of the sausage with the additives tended to decrease with the storage time: the highest value was shown in the Angelica added sausage samples, in both cases added with dried powder as well as with extracted powder. The Paeonia extract powder added sausage had the lowest pH value. The herbal plant added sausages showed the lowest cooking and storage losses among all. The values of TBA (thiobarbituric acid value) and VBN (volatile basic nitrogen) increased with storage time, but the values of the sample with the extract powder additive were lower than those of the freeze-dry powder additive. Total plate counts of bacteria increased with storage time fur all samples, but those for the samples with Pueraria, Platycodon, Angelica, Bupleurum and Paeonia additives exhibited lower values than the control. From the above results, the sausages with medicinal plant additives showed the superior storage safety and quality characteristics.

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The Strength Property with Restrained Effects of the Expansive Mortar (팽창 모르터의 구속효과에 따른 강도특성)

  • Park, Min-Soo;Kim, Hyun-Soo;Park, Chun-Young;Kang, Byung-Hee
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2006.11a
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    • pp.53-56
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    • 2006
  • The objection of this study is to investigate the properties of cement mortar with the kinds and addition of expansive additives. 3 kinds of expansive additives produced in our country and 0, 5, 10, 15, 20% of ratio of addition rate are selected for this experiment. According to experimental results, flow of cement mortar with expansive additives is nearly same with flow of plain mortar and compressive strength, tensile strength, bend strength of cement mortar with expansive additives at 28 days is higher than that of plain mortar.

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Effect of additives on surface properties of Zn-Ni alloy Coating (Zn-Ni 합금전기도금강판의 표면특성에 미치는 첨가제 영향)

  • 김현태;장삼규;정원섭
    • Journal of the Korean institute of surface engineering
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    • v.31 no.4
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    • pp.191-198
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    • 1998
  • The effect of the additives on the Zn-Ni alloy electrocrystallization from a chloride bath was investigated by means of electrochemical methodes, scanning electron microscopy and measurement of surface appearancd, X-ray diffraction patterns. The additives thestd ware the Saccharin, surfactant of naptalene-derivative and mixed additive, The resistance of electrodeposit increased by adding the additives, whera the effect of additives on resistance was different with current density roughness, apperarance and morphology of deposit were also influenced by the type of additive. The deposir with fine, compact grains as well as good surface roughness and appearance was obtained from the mixed-additive added bath.

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Evaluation of Lubrication Characteristics of WMA Additives for Different Roughnesses of Aggregate Surfaces and Film Thicknesses of Binders at a Compaction Temperature (다짐온도에서 골재 거칠기와 아스팔트 피막두께에 따른 중온화 첨가제의 윤활특성 평가)

  • Lee, Sang Jae;Cho, Dong-Woo;Hwang, Sung-Do;Rhee, Suk Keun
    • International Journal of Highway Engineering
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    • v.15 no.5
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    • pp.1-9
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    • 2013
  • PURPOSES : This study is to develop a method to evaluate lubrication of asphalt binder using WMA additives and compare their lubrication effects on two types of WMA additives and three types of asphalt film thicknesses. METHODS : This study is based on laboratory experiments and rheological analysis of the experimental results. Testing materials are aggregate diskes, asphalt, and WMA additives. The main testing method is stress sweep test by using dynamic shear rheometer (DSR). RESULTS : Sasobit gives more lubrication effects on film thicknesses 0.2mm and under but LEADCAP does on film thicknesses over 0.3mm. CONCLUSIONS : LVE-Limit is a better parameter to discern the lubrication effects on the thin film asphalt thickness. Both Sasobit and LEADCAP WMA additives provide effective lubrication at the compaction temperature.

[ $YBa_2Cu_3O_x$ ] Superconductor by Adding with Non-superconducting Additives

  • Soh, Dea-Wha;Cho, Yong-Joon;Natalya, Korobova
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2004.11a
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    • pp.349-352
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    • 2004
  • The improvement of critical temperature $(T_c)$, critical magnetic field $(H_c)$, and critical current density $(J_c)$ of superconductor is important for practical applications. In this study, the additives such as metal oxides were used to improve the preparation conditions of $YBa_2Cu_3O_x$ superconducting bulk samples and depending on additives the properties of $YBa_2Cu_3O_x$ superconductor were studied. The effects of additives to the density, grain alignment, and porosity of samples that affect the critical current density of superconductor also have been investigated.

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Study on CR/SAP Water Swellable Composite for Application of Functional Additives to Improve Water Absorption Rate

  • Seo, Eunho;Lim, Sungwook;Kang, Seungwan;Han, Dongbin;Park, Eunyoung
    • Elastomers and Composites
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    • v.55 no.4
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    • pp.314-320
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    • 2020
  • This study focused on experiments with polyethylene glycol (PEG) and glycidyl methacrylate (GMA), which are functional additives for water-expandable rubber. Polychloroprene rubber (CR)/superabsorbent polymer (SAP) composites were prepared and their cure behaviors, mechanical properties, water absorption rates, and surface morphology were measured based on the functional additives applied. When PEG and GMA were applied to the composites, the water absorption rate increased-including the initial rate-compared to that measured when functional additives were not used. The results also show that PEG has a hydrophilic functional group, which allows it to absorb more water, and GMA acts as a coupling agent between CR and SAP. However, with the introduction of functional additives, the cure rate slowed down and the mechanical properties also decreased.

Analysis of research trend in natural food additives (천연 식품첨가물 연구개발 동향분석)

  • Lee, Hyun-Hee;Jung, Jae-Yeon;Park, Jung-Min
    • Food Science and Industry
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    • v.49 no.4
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    • pp.82-93
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    • 2016
  • Although the development of food technology is relatively fast, it's application is very broad. So, it is necessary that quantitative analysis method can be introduced in analysing of research trends and implication of research themes. Most countries do not classify in food additives as synthesis or natural. However, the use of natural food additives should be recommended by considering about health safety. In this regard, quantitative analysis based on bibliographic information of patents and papers is vital to analyse the trend of research on natural food additives. The data regarding with natural food additives was assigned patents and published papers in the world from 1996 to March 2016 and Thomson Innovation, analysis program was provided by Thomson reuters.

Investigation of the various properties of several candidate additives as buffer materials

  • Gi-Jun Lee;Seok Yoon;Taehyun Kim;Seeun Chang
    • Nuclear Engineering and Technology
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    • v.55 no.3
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    • pp.1191-1198
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    • 2023
  • Bentonite buffer material is a critical component in an engineered barrier system (EBS) for disposing high-level radioactive waste (HLW). The bentonite buffer material protects the disposal canister from groundwater penetration and releases decay heat to the surrounding rock mass; thus, it should possess high thermal conductivity, low hydraulic conductivity, and moderate swelling pressure to safely dispose the HLWs. Bentonite clay is a suitable buffer material because it satisfies the safety criteria. Several additives have been suggested as mixtures with bentonite to increase the thermal-hydraulic-mechanical-chemical (THMC) properties of bentonite buffer materials. Therefore, this study investigated the geotechnical, mineralogical, and THMC properties of several candidate additives such as sand, graphite, granite, and SiC powders. Datasets obtained in this study can be used to select adequate additives to improve the THMC properties of the buffer material.

Effects of Organic Additives on Residual Stress and Surface Roughness of Electroplated Copper for Flexible PCB

  • Kim, Jongsoo;Kim, Heesan
    • Corrosion Science and Technology
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    • v.6 no.4
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    • pp.154-158
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    • 2007
  • For the application of flexible printed circuit board (FPCB), electroplated copper is required to have low surface roughness and residual stress. In the paper, the effects of surface roughness and residual stress of electroplated copper as thick as $8{\mu}m$ were studied on organic additives such as inhibitor, leveler and accelerator. Polyimide film coated with sputtered copper was used as a substrate. Surface roughness and surface morphology were measured by 3D-laser surface analysis and FESEM, respectively. Residual stress was calculated by Stoney's equation after measuring radius curvature of specimen. The addition of additives except high concentration of accelerator in the electrolyte decreased surface roughness of electroplated copper film. Such a tendency was explained by the function of additives among which the inhibitor and the leveler inhibit electroplating on a whole surface and prolusions, respectively. The accelerator plays a role in accelerating the electroplating in valley parts. The inhibitors and the leveler increased residual stress, whereas the accelerator decreased it. It was thought to be related with entrapped additives on electroplated copper film rather than the preferred orientation of electroplated copper film. The reason why additives lead to residual stress remains for the future work.

The Effect of Some Additives on the Components of Cigarette Smoke (첨가제가 담배 연기성분에 미치는 영향)

  • Ra Do-Young;J도 Byong-Kwon;Lee Chang-Kook;Cho Si-Hyung;Lee Dong-Wook
    • Journal of the Korean Society of Tobacco Science
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    • v.27 no.1 s.53
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    • pp.40-50
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    • 2005
  • The influence of tobacco additives on the composition of the combustion products in mainstream smoke is discussed. The effect of additives on the chemical composition of smoke have been further evaluated in order to discover additives that would alter the chemical composition of smoke. Tobacco was uniformly treated at a 1-5$\%$ level with 8 classes of additives. Group M treated with alkali metal salt and group S, F, O give lower tar, nicotine and CO values than the control. Group AN treated with natural antioxidant gives higher tar and CO values than the control. The increases are most probably due to the high transfer rate of the ingredients to smoke. M3 and P1 reduced above the $50\%$ of TSNA from the smoke. M4 and P1 reduced above the $50\%$ of HCN from the smoke. These results suggest that tobacco additives alter pyrolysis or combustion product distribution and provide fundamental data to lead the development of a RRP(reduced risk product).