• Title/Summary/Keyword: I-fiber

Search Result 1,504, Processing Time 0.024 seconds

Methacrylamide graft polymerization on silk fibroin dyed with reactive dyestuffs (반응염색견(反應染色絹)의 Methacrylamide graft 중합(重合))

  • Rhee, In Jeon;Lee, Dong Soo
    • Current Research on Agriculture and Life Sciences
    • /
    • v.12
    • /
    • pp.83-95
    • /
    • 1994
  • Fixation rate of reactive dyes on silk fibroin showed the same tendency to absorption rate. Fixation rate of Yellow 179 and Blue 71 was quite slow and Black 5, Blue 49, Blue 4, Blue 19 and Blue 21 was relatively fast. Weight increase by MAA graft polymerization onto filk fibroin was decreased, on the whole, according to the the increase of dye fixation, but weight increase of silk fibroin dyed with Blue 71 and Blue 21 was much higher than that of silk fibroin. And weight increase of silk fibroin dyed with Yellow 179 was similar to that of silk fibroin and in case of Blue 19, weight increase was about 12%, constantly. Weight increase of silk fibroin dyed with Blue 71 and Blue 21 was higher and the others were lower than of silk fibroin. And weight increase was diminished according as the dyeing temperature rises. The color was a little changed by MAA graft polymerization.

  • PDF

Distribution and Characteristics of Plants Resources in Mt. Jo-bong (Yangyang-gun, Gangwon-do) (조봉(강원, 양양) 식물자원의 분포와 특성)

  • Han, Jun-Soo;Cheon, Kyeong-Sik;Kim, Kyung-Ah;Ok, Gil-Hwan;Jung, Hee-Jin;Yoo, Ki-Oug
    • Korean Journal of Plant Resources
    • /
    • v.26 no.1
    • /
    • pp.119-142
    • /
    • 2013
  • This study was carried out to investigate the distribution and characteristics of plants resources in Mt. Jo-bong (Yangyang-gun, Gangwon-do) from April, 2011 to October, 2012. The vascular plants were summarized as 500 taxa; 92 families, 296 genera, 434 species, 6 subspecies, 49 varieties, and 11 forma. Among the investigated 500 taxa, 13 Korean endemic, 14 rare plants, 1 endangered and 75 specially designated plants by Ministry of Environment were included. The naturalized plants were 32 taxa and percent of naturalized plant species and urbanization index were estimated 6.4% and 10%, respectively. Usefulness of plants of 500 taxa listed consists of 193 taxa (38.6%) of edible plants, 155 taxa (31.0%) of medicinal plants, 86 taxa (17.2%) of pasture plants, 58 taxa (11.6%) of ornamental plants, 16 taxa (3.2%) of timber plants, 14 taxa (2.8%) of fiber plants, 4 taxa (0.8%) of industrial plants and 2 taxa (0.4%) of miscellaneous plants.

Tension Force Monitoring of Tension Type Ground Anchor Using Optical FBG Sensors (광섬유 센서를 이용한 인장형 그라운드 앵커의 장력측정)

  • Sung, Hyun-Jong;Kim, Young-Sang;Kim, Jae-Min;Park, Gui-Hyun
    • Journal of the Korean Geotechnical Society
    • /
    • v.27 no.6
    • /
    • pp.17-26
    • /
    • 2011
  • Ground anchor method is one of the most popular reinforcing technology in Korea. For the sound monitoring of slope reinforced by permanent anchor for a long period, monitoring the tension force of ground anchor is very important. However, special technology except conventional load cell has not been developed for this purpose. In this paper, a new method is described to replace the conventional strain gauge and V.W. type load cell which has been commonly used as a prestress force monitoring tool for a short-term and long-term. Four 11.5 m long strain detectable tension type anchors were made using FBG sensor embedded tendon since FBG sensor is smaller than strain gauge type load cell and does not have noise from electromagnetic wave. Each two set strain detectable tension type anchors were installed into the different ground conditions, i.e., soft rock and weathered granite soil. Prestress force of ground anchor was monitored during the loading-unloading step from in-situ pullout test using proposed FBG sensor embedded in the tendon and the conventional load cell Test results show that the prestress force monitored from FBG sensor may well be used practically, for it almost matches with that measured from expensive load cell.

Effect of Partial Replacement of Wheat Flour with High Quality Cassava Flour on the Chemical Composition, Antioxidant Activity, Sensory Quality, and Microbial Quality of Bread

  • Eleazu, Chinedum;Eleazu, Kate;Aniedu, Chinyere;Amajor, John;Ikpeama, Ahamefula;Ebenzer, Ike
    • Preventive Nutrition and Food Science
    • /
    • v.19 no.2
    • /
    • pp.115-123
    • /
    • 2014
  • In the current study, wheat flour was mixed with high quality cassava flour (HQCF) in several ratios: 90:10, 80:20, 70:30, and 60:40, and used to prepare 10%, 20%, 30%, and 40% National Root Crops Research Institute (NRCRI) cassava bread, respectively. 100% wheat bread was prepared as a control (100% wheat bread). Five bread samples were prepared per group. Antioxidant assays [i.e., 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) scavenging assay, reducing power assay] revealed that the bread samples had considerable antioxidant capacities. Substitution of wheat flour with HQCF at various concentrations resulted in dose dependent decreases in the mineral and protein contents of the resulting bread samples. The crude fiber content of the bread samples was minimal, while the carbohydrate content of the bread samples ranged from 43.86% to 48.64%. A 20% substitution of wheat flour with HQCF yielded bread samples with a general acceptability that was comparable to that of 100% wheat bread. The mean bacteria counts of the bread samples ranged from $2.0{\times}10^3CFU/mL$ to $1.4{\times}10^4CFU/mL$, while the fungal counts ranged from 0 CFU/mL to $3{\times}10^3CFU/mL$. There was a positive correlation between the DPPH antioxidant activities and the reducing powers of the bread samples ($R^2=0.871$) and a positive correlation between the DPPH antioxidant activities and the flavonoid contents of the bread samples ($R^2=0.487$). The higher microbial load of the NRCRI cassava bread samples indicates that these bread samples may have a shorter shelf life than the 100% wheat bread. The significant positive correlation between total flavonoid content and reducing power ($R^2=0.750$) suggests that the flavonoids present in the lipophilic fractions of the bread samples could be responsible for the reductive capacities of the bread samples.

Study Theme and Tendency Analysis of Clothing Construction (의복구성학의 연구주제 및 경항분석)

  • 이정순;나수임;배주형
    • The Research Journal of the Costume Culture
    • /
    • v.9 no.2
    • /
    • pp.175-187
    • /
    • 2001
  • The purpose of this study is to recognize the real situation of clothing construction to present the desirable direction to establish more scientific and reasonable themes of the study by analysis of the tendency of the clothing construction study. For this purpose, 402 papers on the theme of clothing construction study were excepted from the first issues to the issues of December in 1999 of Journal of Korea Society of Clothing and Textile, Journal of Korea Home Economics, Journal of the Korean Society of Costume, Research Journal of the Costume Culture, Journal of the Korean Fiber Society, and Journal of the Human Engineering Society of Korea. I analyzed and classified the theme into eight issues of design related clothing construction, study of body types, study of patterns, size of apparel, fitting of clothing, protective clothing and functional clothing, sewing, and the clothes. The result of the study is follows. 1. The distribution tendency of the clothing construction study by the journal of each society showed that journal of Korean Home Economic is 22.9%, Journal of Korea Society of Clothing and Textiles 17.3%, Research Journal of the Costume Culture 12.2%, and Journal of the Korean Society of Costume 6.2%. 2. The distribution tendency of the studying issues showed hat study of body types of 29.4%, study of patterns21.9%, fitting of clothing 11.7%, sewing 10.2%, size of apparel 8.5%, and others 7%, protective clothing and functional clothing 6.7%, and design related clothing construction 4.7%. Considering the above result. we can understand that study of body types and patterns are being studied most actively. 3. Regarding the study tendency by academic issues showed that study of construction elements and design application is chiefly centered of the study of design related clothing construction (35.5%), analysis of body types is centered of the study of body, type(46/6%), CAD is centered of the study of patterns (31.1%), and size spec for the ready made patterns is centered of the study of size of apparel(32.4%). As for fitting of clothing, the study was performed in two ways on the changes of he surfaces of human bodies in motion and the functional features of experimental dressing. Regarding the study of sewing study of fusible interlining was mainly performed (36.6%) and regarding the study of protective clothing and functional clothing, study of brassieres and underwear was chiefly performed.

  • PDF

The Flora of Vascular Plants in Mt. Galjeongok-bong Protected Area for Forest Genetic Resource Conservation, Baekdudaegan, Korea (백두대간 갈전곡봉 산림유전자원보호구역의 관속식물상)

  • Byeon, Jun Gi;Oh, Seung Hwan;Lee, Kyu Song;Yun, Ju Eun;Jang, Jeong Won;Jeong, Jong Bin;Yang, Jong Cheol;Kim, Hyuk Jin
    • Korean Journal of Plant Resources
    • /
    • v.27 no.5
    • /
    • pp.477-484
    • /
    • 2014
  • This study was carried out to investigate the vascular plants of the Mt. Galjeongok-bong (1204 m) Protected Area for Forest Genetic Resource Conservation. The vascular plants collected 12 times (from March 2007 to October 2012) were consisted of total 385 taxa; 82 families, 232 genera, 335 species, 4 subspecies, 43 varieties and 3 forms respectively. Among them, 9 taxa Korean endemic plants and 21 taxa of Korean rare plants were investigated in addition to 89 taxa of specially designated plants announced by the Ministry of Environment. The naturalized plants were 9 taxa, therefore naturalized ratio was 2.3%. 385 taxa listed consists of 152 taxa (39.5%) of edible plants, 123 taxa (31.9%) of medicinal plants, 120 taxa (31.2%) of pasture plants, 52 taxa (13.5%) of ornamental plants, 16 taxa (4.2%) of timber plants, 4 taxa (1.0%) of fiber plants and 3 taxa (0.8%) of industrial plants.

Floristic study of Mt. Dosol and its adjacent areas (Yanggu-gun, Gangwon-do) (도솔산(강원, 양구)일대의 관속식물상)

  • Kim, Kyung-Ah;Han, Jun-Soo;Cheon, Kyeong-Sik;Park, Yong-Ho;Kang, Jong-Soo;Yoo, Ki-Oug
    • Korean Journal of Plant Taxonomy
    • /
    • v.44 no.1
    • /
    • pp.59-76
    • /
    • 2014
  • This study was carried out to investigate flora of Mt. Dosol(Yanggu-gun, Gangwon-do). The vascular plants were summarized as 510 taxa, including 89 families, 281 genera, 438 species, 3 subspecies, 61 varieties and 8 forms. Among the investigated 510 taxa, 21 Korean endemic, 24 rare plants, 1 endangered plant and 122 specially designated plants by the Ministry of Environment were also included. The naturalized plants were 27 taxa. The percent of naturalized plants species and urbanization index were estimated as 5.3% and 8.4%, respectively. Usefulness of plants of 510 taxa listed consists of 201 taxa(39.4%) of edible plants, 186 taxa(36.5%) pasture plants, 144 taxa(28.2%) of medicinal plants, 56 taxa(11.0%) of ornamental plants, 16 taxa(3.1%) of timber plants, 8 taxa(1.6%) of miscellaneous plants and 4 taxa(0.8%) of fiber plants.

The flora of vascular plants in Mt. Cheonhwang (Gyeongsangnam-do) (천황산 지역(경남)의 관속식물상)

  • Ko, Sung Chul;Choi, Doo Sub;Son, Dong Chan;Park, Beom Kyun;Kim, Tae Hoon
    • Korean Journal of Plant Taxonomy
    • /
    • v.43 no.2
    • /
    • pp.146-160
    • /
    • 2013
  • The flora of vascular plants in the Mt. Cheonhwang, located at Miryang-si, Gyeongsangnam-do Province, was surveyed 16 times from March, 2009 to September, 2011. The result of this survey revealed 442 taxa in total, comprising 90 families, 252 genera, 387 species, 3 subspecies, 43 varieties, and 9 forms. Among the flora of this area, 14 taxa were plants endemic to Korea and 11 taxa were rare and endangered plants of Korea. The floristic regional indicator plants found in this area were 59 taxa: 2 taxa of grade V, 5 taxa of grade IV, 15 taxa of grade III, 16 taxa of grade II and 21 taxa of grade I. Alien plants in Korea numbered 21 taxa. In addition, 442 taxa were categorized by usage into 8 groups, as follows: 163 edible, 6 fiber, 125 medical, 76 ornamental, 163 pasturing, 4 industrial, 9 dyeing and 21 timber plants.

Effects of Feeding Levels of Starter on Weaning Age, Performance, Nutrient Digestibility and Health Parameters in Holstein Dairy Calves

  • Nejad, J. Ghassemi;Hosseindoust, A.;Shoae, A.;Ghorbani, B.;Lee, B.H.;Oskoueian, E.;Hajilari, D.;Amouzmehr, A.;Lohakare, J.D.;Sung, K.I.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.26 no.6
    • /
    • pp.827-830
    • /
    • 2013
  • To evaluate the effects of feeding four different levels of starter in male Holstein dairy calves, a completely randomized study was conducted, using 28 calves with initial body weight of $40.5{\pm}2.4$ kg. The animals were fed iso-nitrogenous starter and were weaned when they consumed 350, 500, 650 and 800 g/d of starter for 3 d consecutively. Starter and water were available ad-libitum throughout the experiment. Body weight at pre-weaning (less than 5 wk) and post-weaning (8 wk) was lower in calves that received 350 g/d of starter than in the other treatments (p<0.05). Feed conversion ratio (FCR) was the highest among all treatments in pre-weaning period (p<0.05). Dry matter intake (DMI) at weaning and total DMI was higher in that calves received 800 g/d of starter compared with other treatments (p<0.05). Calves fed 350 and 500 g/d of starter were weaned earlier (p<0.05) and showed lower milk consumption (kg, DM) compared with other treatments whereas no significant difference was observed between calves fed 350 and 500 g/d of starter (p>0.05). Dry matter, organic matter and crude protein digestibilities were lower in calves that received 350 g/d of starter compared with other treatments (p<0.05). No differences were observed in acid detergent and neutral detergent fiber digestibility among all treatments (p>0.05).Treatments had no significant effect on time of starting rumination, respiratory score, and days of drug administration for pneumonia. There were no meaningful differences in feces, fecal odor scores, body temperature, and days of drug administration for diarrhea among all treatments (p>0.05). Total dry matter intake at the end of experiment showed no significant difference among calves fed 600 and 800 g/d of starter, but calves fed 350 and 500 g/d of starter showed more dry matter (DM) intake than calves in the 600 and 800 g/d groups (p<0.05).

Effects of Levels of Feed Intake and Inclusion of Corn on Rumen Environment, Nutrient Digestibility, Methane Emission and Energy and Protein Utilization by Goats Fed Alfalfa Pellets

  • Islam, M.;Abe, H.;Terada, F.;Iwasaki, K.;Tano, R.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.13 no.7
    • /
    • pp.948-956
    • /
    • 2000
  • The effect of high and low level of feed intakes on nutrient digestibility, nutrient losses through methane, energy and protein utilization by goats fed on alfalfa (Medicago sativa L.) pellets based diets was investigated in this study. Twelve castrated Japanese goats were employed in two subsequent digestion and metabolism trials. The goats were divided into three groups, offered three diets. Diet 1 consisted of 100% alfalfa pellet, Diet 2 was 70% alfalfa pellet and 30% corn, and Diet 3 was 40% alfalfa pellet and 60% corn. The two intake levels were high (1.6 times) and low (0.9 times) the maintenance requirement of total digestible nutrients (TON). Rumen ammonia nitrogen ($NH_3$-N) level of Diet 1 was lower (p<0.001) compared to Diets 2 and 3, but the values were always above the critical level (I50 mg/liter), The pH values of rumen liquor ranged from 6.02 to 7.30. Apparent digestibility of nutrient components did not show differences (p>0.05) between the two intake levels but inclusion of corn significantly altered the nutrient digestibility. Diet 3 had highest (p<0.001) dry matter (DM), organic matter (OM), ether extract (EE) and nitrogen fee extract (NFE) digestibility followed by the Diet 2 and Diet 1. The crude protein (CP) digestibility values among the three diets were in a narrow range (70.1 to 70.8%). Crude fiber (CF) digestibility for Diet 3 was slight higher (p>0.05) than that for other two diets. When alfalfa was replaced by corn, there were highly significant (p<0.001) increases in DM, OM, EE and NFE apparent digestibility and a slight increase in the CF digestibility (p>0.05). There were no differences (p>0.05) in energy losses as methane ($CH_4$) and heat production among the diets but energy loss through urine was higher for the Diet 1. The total energy loss as $CH_4$ and heat production were higher for the high intake level but the energy loss as $CH_4$ per gram DM intake were same (0.305 kcal/g) between the high and low intake level. Retained energy (RE) was higher for Diet 3 and Diet 2. Nitrogen (N) losses through feces and urine were higher (p<0.001) for Diet 1. Consequently, N retention was lower (p>0.05) for Diet 1 and higher in Diets 3 and 2. It is concluded that inclusion of corn with alfalfa increased the metabolizable energy (ME) and RE, and retained N through reducing the energy and N losses. The high level of intake reduced the rate of nutrient losses through feces and urine.