• 제목/요약/키워드: Chemical product

검색결과 2,819건 처리시간 0.03초

내재적 혁신성과 상품 관심이 특정 상품에 대한 소비자 혁신성에 미치는 영향 (Effects of Innate Innovativeness and Product Interest on Product-Specific Consumer Innovativeness)

  • 정인희;조윤진
    • Human Ecology Research
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    • 제56권2호
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    • pp.167-174
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    • 2018
  • This study investigated consumer innovativeness by examining a relationship model of innate innovativeness, product interest, product-specific innovativenss, and actualized innovativeness for eight product items as well as observed gender differences in the variables. The eight product items for the survey were smartphones, movies, clothing, cars, skin care products/cosmetics, traveling, AI products, and books. An online survey was conducted in January 2018, and 400 responses from male and female consumers in their twenties and thirties, were analyzed using reliability test, descriptive statistics, regression, and ANCOVA. The positive effect of innate innovativeness and product interest on product-specific innovativeness, and positive effect of innate innovativeness and product-specific innovativeness on actualized innovativeness were confirmed. Product interest was found to have a stronger power on product-specific innovativeness than innate innovativeness. Gender differences in product interest, product-specific innovativeness, and actualized innovativeness were identified as hypothesized. Female consumer's clothing interest, clothing innovativenss, and actualized clothing innovativeness were higher than male consumers; in addition, male consumer's cars and AI interest, cars and AI innovativenss, and actualized cars and AI innovativeness were higher than female's. The controversial results that indicated the higher innate innovativeness of male consumers useful to further in-depth discussion and research. This study contributed to the theory construction of consumer innovativeness research areas and offered practical implications for new product launching and customer relationship management.

Similarity Analysis of Chemical Profiles of Scrophularia buergeriana Based on HPLC-DAD

  • Kim, Dae-Hyun;Park, Jin-Ho;Kim, Young-Choong;Sung, Sang-Hyun;Kim, Seung-Hyun
    • Natural Product Sciences
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    • 제17권3호
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    • pp.225-229
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    • 2011
  • A new approach for similarity analysis of chemical profiles of Scrophularia buergeriana was developed. The roots of S. buergeriana collected in Andong, Korea were analyzed using HPLC-DAD and the peak areas of the chromatograms were used to construct the chemical profiles of S. buergeriana. The analytical conditions were validated for specificity, precision and repeatability. The standard chemical profiles were established from the chromatograms of nine standard analytical extracts from three batches. The correlation coefficients of peak areas of characteristic compounds between the chromatograms of the standard and test samples were calculated for quantitative expression of the chemical profiles. The results showed that the HPLC chemical profiles of the samples of same geographic origin were relatively consistent. This new approach could be applied to the quality assessment of herbal medicines with complex chemical compositions.

Chemical Constituents and Pharmacological Activities of Hedyotis diffusa

  • Xu, Bao-Jun;Sung, Chang-Keun
    • Natural Product Sciences
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    • 제11권1호
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    • pp.1-9
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    • 2005
  • The chemical constituents from Hedyotis diffusa Willd and their pharmacological activities were summarized. It has been known data that this herb contains anthraquinones, terpenoids, steroids, flavonoids, organic acid, and polysaccharides. The studies of pharmacology have shown that Hedyotis diffusa Willd possess various levels of activities such as anticancer, anti-inflammatory, immunostimulatory, antioxidative, neuroprotective, and hepatoprotective activities.

One New and Two Rare Alkamides from Two Samples of the Fruits of Piper longum

  • Das, Biswanath;Kashinatham, A.;Madhusudhan, P.
    • Natural Product Sciences
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    • 제4권1호
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    • pp.23-25
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    • 1998
  • Two samples of the fruits of Piper longum have been chemically investigated. From one sample a new alkamide, pergumidiene and from other sample two rare alkamides, brachystamide B and piperderdine have been isolated. The known compounds, piperine, piperlonguminine, pellitorine, (+)-sesamine and 3-(3', 4', 5'-trimethoxyphenyl)-propionic acid were the common constituents of both the samples.

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Synthesis of Polyphenylene-1,2,4-Owadiazoles and Quinone Polymer by the Reactions of Tere- and Iso-Phthalohydroxamoyl Chlorides with Bisdipolarophiles

  • Suck-Ju Hong
    • 대한화학회지
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    • 제15권3호
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    • pp.121-125
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    • 1971
  • Tere-and Isophthalohydroxamoyl chlorides were condensed with 1, 4-benzoquinone to afford quinone type polymer with the oxidation of the ring structure. Similarly, tere-and isophthalohydroxamoyl chlorides were condensed with tere-and isophthaldioximes and terephthalonitrile to give crystalline polyphenylene-1,2,4-oxadiazoles, among which the reaction product of terephthalohydroxamoyl chloride with terephthalonitrile in xylene afforded the highest crystallinity.

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The Joins (SKI 306X) study: Effects on Arachidonic acid metabolism pathway and other inflammatory mediators

  • Ryu, Keun-Ho;Jung, Ki-Won;Han, Chang-Kyun;Kwak, Wie-Jong;Cho, Yong-Baik
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.143.2-144
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    • 2003
  • Joins (SKI 306X) is now clinically used for the treatment of osteoarthritis (OA). In previous reports, Joins a natural herbal product extracted from three herbs Clematis Radix. Trichosanthes Radix and Prunella Flos, was shown to have good analgesic and anti-inflammatory effects in several in vivo models. e.g., acetic acid-induced pain, carrageenan-induced paw edema and adjuvant-induced arthritis. (omitted)

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A New Oxygenated Furano Sesquiterpene from the Sponge Dysidea fragilis

  • Venkateswarlu, Y.;Reddy, N. Srinivasa;Ramesh, P.
    • Natural Product Sciences
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    • 제4권3호
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    • pp.158-160
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    • 1998
  • A new oxygenated furano sesquiterpene [1] has been isolated from the sponge Dysidea fragilis collected from Mandapam coast, Tamilnadu, India and its structure was determined by analysis of spectral data.

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Photocycloaddition of 5,7-Dimethoxycoumarin to 5-Fluorouracil

  • Shim, Sang-Chul;Ra, Choon-Sup;Chae, Kyu-Ho
    • Bulletin of the Korean Chemical Society
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    • 제1권4호
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    • pp.121-123
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    • 1980
  • $C_4$-Photocycloaddition of 5,7-dimethoxycoumarin(DMC) to 5-fluorouracil(5-FU) was studied in frozen aqueous solution. The major photoproduct was diagnosed and isolated by TLC and column chromatography. The structure of isolated photoproduct was identified as a $C_4$-cycloaddition product of DMC and 5-FU by the characteristics of its UV, IR, NMR, mass spectra, elemental analysis, and photosplitting.

가축분뇨를 원료로 하는 부산물 비료의 부숙화에 따른 물리화학적 특성변화 (Physical and Chemical Quality of Organic by Product Fertilizers by Composting of Livestock Manure in Korea)

  • 이창호;옥용식;윤영만;김대연;임우길;엄기철;김정규
    • 한국토양비료학회지
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    • 제39권4호
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    • pp.224-229
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    • 2006
  • 다량으로 배출되고 있는 축산분뇨를 퇴비화 하여 농지로 투입하는 것은 토양의 물리화학성 개선 등의 유효한 효과가 있지만, 적절한 부숙화 과정을 거치지 않은 미부숙 물질을 투여하면 나쁜 영향을 끼치게 된다. 축산분뇨를 이용한 부산물 비료의 제조에 있어서 적절한 부숙도 관리가 중요한 이유이다. 따라서 축산부산물을 주원료로 하고 부재료와 부숙 기간을 7가지 단계로 달리한 부산물비료를 대상으로 부숙화에 따른 화학성의 변화 경향 파악과 색도, 점도, 입도, 용적밀도 등의 물리성 변화를 아울러 조사하여, 부숙도에 대한 판정지표를 추출하고자 하였다. 휴민산 함량, 유기물/질소 비율, 양이온치환용량, 염함량 등의 화학성이 부숙정도와 밀접한 관련이 있었으며, 물리적 특성에서는 수분함량, 입자밀도 및 용적밀도, 입경별 분포, 색도 등이 부숙도의 판정지표로 사용할 수 있음을 알 수 있었다.