BA 처리시기에 따른 콩나물의 생장과 처리비용 분석

강진호,전병삼,이상우,정종일,심상인 韓國作物學會 2003 한국작물학회지 Vol.48 No.3

콩나물 세근 발생을 억제하기 위하여 주로 BA가 이용되고 있다. 본 연구는 종자의 수분 흡수형태를 기초로 BA 처리시기가 콩나물의 발아와 생장에 미치는 영향을 구명하여 BA의 처리량을 경감할 수 있는 방법을 강구하고자 실시하였다. 건조 원료콩을 BA 4 ppm 용액에 침종 첫 5.5시간, 두 번째 5.5시간, 이를 합한 11시간 침종시켜 6일간 콩나물로 재배한 후 조사한 결과를 요약하면 다음과 같다. 1. 종자의 수분흡수는 침종 후 5.5시간까지 급격히 일어났으며 그 이후에는 현저히 둔화되는 형태를 보였다. 2. 하배축 길이가 4cm 이상의 콩나물 비율은 첫 5.5시간 또는 총 11시간 침종한 것에 비하여 두 번째 5.5시간 동안 BA를 처리할 경우 증가되었다. 3. BA처리시기 및 장단에 관계없이 세근은 발생되지 않았다. 그러나 하배축과 뿌리 길이는 첫 5.5시간 또는 두 번째 5.5시간 BA를 처리한 것에 비하여 이를 합한 총 11시간 BA를 처리할 경우 짧아졌던 반면, 하배축과 hook 직경은 굵어지는 것으로 나타났다. 4. 자엽의 생체중을 제외한 여타 생체중과 건물중은 첫 5.5시간, 두 번째 5.5시간, 이를 합한 총 11시간의 BA 처리간에 차이가 없었다. 5. BA 처리시기가 콩나물의 발아와 생장에 영향을 미치는 것보다는 BA처리비용에 커다란 차이를 보이는 것으로 분석되어 BA는 흡수가 완만한 두 번째 5.5시간에 처리하는 것이 가장 효과적이었다. Benzyladenopuyine (BA) commonly used for soybean sprout production is of high price. The study was carried out to determine the effect of BA treatment time during seed imbibition on growth and development of soybean sprouts and to analyse its treatment cost. The soybean seeds of 4 cultivars were soaked in 4 ppm BA solution during the first 5.5 hour imbibition (EFHI), the second 5.5 hour imbibition (SFHI) immediately after 0.5 hour aeration, or whole 11.0 hour imbibition (WFHI) intervened by aeration. On the 6th day after culture, the soybean sprouts were classified into 4 categories on the base of hypocotyl length; > 7cm, 4 to 7cm, < 4 cm and not germinated, and their morphological characters, fresh and dry weights were measured. Water absorption of the seeds was sharply reduced after it was almost done for the first 5.5 hours. The percentage of sprouts with hypocotyls of longer than 4cm was higher in FFHI treatment than in the other two ones. Regardless of BA imbibition time and periods, the lateral roots were not observed. WFHI treatment showed shorter hypocotyl and root lengths but thicker hypocotyl and hook diameters than FFHI and SFHI treatments. All component fresh and dry weights except cotyledon fresh weight were nearly same. Treatment cost of BA was the lowest in SFHI treatment. It is concluded that BA treatment during SFHI is the best time because its treatment time did not affect sprout growth but its treatment cost.

Ba 첨가에 의한 알루미나의 열 안정화 효과

서두원,한문희,이채현,Seo, Doo-Won,Han, Moon-Hee,Lee, Chae-Hyun 배재대학교 공학연구소 1997 공학논문집 Vol.2 No.1

촉매연소용 촉매담체인 $\gamma$-$Al_2O_3$의 열안정화에 미치는 Ba의 첨가 효과에 대하여 연구하였다. Ba의 첨가는 $Ba(No_3)_3$.$6H_2O$를 $\gamma$-$Al_2O_3$ 분말에 wet impergnation시키는 방법으로 행하였다. Ba는 $\gamma$-$Al_2O_3$의 소결을 억제함으로써 $\gamma$-$Al_2O_3$의 열안정화에 효과적인 첨가제임을 확인하였으며 최적의 첨가량은 전체 열처리 조건에서 5 mol%임을 알 수 있었다. 이러한 Ba첨가에 의한 열안정화 효과는 이온반경이 큰 $Ba^{2+}$이온이 $\Al^{3+}$이온의 자리에 치환하여 $\Al^{3+}$이온의 표면 확산을 억제하는 효과에서 기인하는 것으로 사료된다. The effect of Ba addition on the thermal stabilization of $\gamma$-$Al_2O_3$ powders were studied. Ba additive was introduced into $\gamma$-$Al_2O_3$ powders by wet impregnation of $Ba(No_3)_3$.$6H_2O$. Ba additive was proved to be effective on the thermal stabilization of $\gamma$-$Al_2O_3$ powders by suppression of sintering. The optimum content of Ba was determined by 5 mol%, through the calcinations temperature range. It is suggested that the main reason of thermal stabilizaton is the substitution effect of large $Ba^{2+}$ ions into the $\Al^{3+}$ sites, which suppressed the surface diffusion of $\Al^{3+}$ ions.

조선시대 출토복식 중 포류(袍類)의 바대 연구

신경희,최연우 한국복식학회 2024 服飾 Vol.74 No.1

Ba-dae is a patch sewn on areas of clothing worn out from friction or force. Excavated clothing exhibits several types of Ba-dae, but few studies focus on Ba-dae. Therefore, this study analyzes the shapes of Ba-dae from excavated clothing, specifically traditional robes(袍類) from the Joseon Dynasty. It considers 1,062 items categorized as robes from 79 graves (56 men and 23 women) from the 1400s to the 1800s. Among the items were 101 Dan-ryeong (an official’s robe and women’s robe), 117 Jik-lyeong (men’s robes), 73 Dap-ho (men’s robes), 236 Cheol-lik (men’s robes), 60 Do-po (men’s robes), 44 Aek-jureum (men’s half-robes), 124 Jang-ot (men's and women’s robes), and 307 Chang-ui-type clothes (Dae-changui, Jung-chi-mak, and So-changui). Ba-dae is visible on 378 of these items. The analysis categorizes the Ba-dae according to its sewn location, the type of Ba-dae, and the details of its shape. Next, the study investigates the type of clothing to see the differences in the Ba-dae type, shape, and changes to the Ba-dae shape over time. The Ba-dae's types and changes are as follows: The 15th century used the So-yo type Ba-dae and square Ba-dae. The 16th and 17th centuries featured various types of Ba-dae: Hook type, star type, trapezoid type, So-yo type, and ellipse type. In the 18th and 19th centuries the Ba-dae become a simplified square. The trapezoid variant appears on items from the 16th century, and the star type on items from the 17th century.

조직배양에 의한 위도상사화(Lycoris uydoensis M. Kim)의 효율적 기내번식

고정애 ( Jeong Ae Ko ),김인숙 ( In Sook Kim ),정공수 ( Gong Soo Jeong ),최정란 ( Jeong Ran Choi ) 전북대학교 농업과학기술연구소 2012 농업생명과학연구 Vol.43 No.2

위도상사화(Lycoris uydoensis M. Kim)의 효율적인 기내 급속 대량 증식체계를 확립시키고자 잎과 인편을 배양하였다. 5℃에서 60일간 저온 처리한 모구를 구고를 중심으로 상부, 중부 및 하부로 구분하여 0.1 mg·L-1 2,4-D와 1.0 mg·L-1 BA, 0.5 mg·L-1 NAA와 1.0 mg·L-1 BA 또는 3.0mg·L-1 IBA와 3.0 mg·L-1 BA 혼용처리된 MS 배지에 배양한 결과 식물생장조절물질과는 관계없이 디스크가 부착된 인편의 하부가 캘러스 및 자구 형성에 가장 효과적인 부위였다. 캘러스는 잎절편이나 인편조직에서 쉽게 형성되었으나 소자구 및 신초는 인편에서만 형성되어 기내번식에 적합한 절편체는 인편이었다. 자구 형성 및 신초분화는 배지내 첨가된 식물생장조절물질에 따라 치상체에서 직접 자구를 형성하거나 캘러스를 통해 식물체로 분화되는 2가지 경로로 형성되었는데 디스크가 부착된 인편을 0.1 mg·L-1 2,4-D와 1.0 mg·L-1 BA, 0.5 mg·L-1 NAA와 1.0 mg·L-1 BA 또는 3.0 mg·L-1 IBA와 3.0 mg·L-1 BA 혼용처리된 MS 배지에 배양하여 30일 이내에 60%-100%까지 유도하였다. 다량의 자구형성 및 유지는 MS배지에 0.1 mg·L-1 2,4-D와 1.0 mg·L-1 BA가 혼용되거나 또는 3.0 mg·L-1 IBA와 3.0mg·L-1 BA 혼용처리 되었을 때 0.5 mg·L-1 NAA와 1.0mg·L-1 BA 혼용처리 되었을 때 보다 효과적이었다. 6% sucrose는 자구형성 및 비대를 촉진시켰으며 특히 3.0 mg·L-1 IBA와 3.0 mg·L-1 BA 혼용처리배지에 6% sucrose를 첨가시키므로 0.1 mg·L-1 2,4-D와 1.0 mg·L-1 BA가 혼용 배지보다 구의 비대가 1-2배 증가하였다. 인편유래 캘러스로부터 기관분화 또는 인편에서 직접 분화된 자구에서 성공적으로 식물체가 재분화되었다. This study was conducted to establish an effective in vitro mass propagation system using leaf and bulb scale explant sources of Lycoris uydoensis M. Kim. For the bulb scale culture, the bulbs treated at 5℃ for 60 days were dissected into three parts according to bulb height (upper, middle, and bottom), and allowed for a culture on the MS medium with 0.1 mg ? L-1 2,4-D plus 1.0 mg ? L-1 BA, 0.5 mg ? L-1 NAA plus 1.0 mg ? L-1 BA, and 3.0 mg ? L-1 IBA plus 3.0 mg ? L-1 BA. Regardless of plant hormone treatments, the bottom part of the bulb including the disk proved to be most effective in forming the callus and bulblets. Callus was readily produced on the young leaf segment and bulb scale tissues, whereas, bulblets and shoots were formed only on bulb scale explants. Bulb scales with disk appeared to the best optimal explant for in vitro propagation. Two distinct pathways, either organogenesis through callus or direct bulblet formation, could be recognized in bulb scale culture. Bulblet formation and shoot organogenesis from the bulb scales with disk were effectively induced up to the 60%~100% on the MS medium supplemented with 0.1 mg ? L-1 2,4-D plus 1.0 mg ? L-1 BA, 0.5 mg ? L-1 NAA plus 1.0 mg ? L-1 BA, and 3.0 mg ? L-1 IBA와 3.0 mg ? L-1 BA within 30 days of culture. On MS media supplemented with 0.1 mg ? L-1 2,4-D plus 1.0 mg ? L-1 BA or 3.0 mg ? L-1 IBA와 3.0 mg ? L-1 BA were more effective than 0.5 mg ? L-1 NAA plus 1.0 mg ? L-1 BA for induced and maintained a large number of bulblets. Six percent of sucrose enhanced bulblet formation and expanded the bulblets. Especially, adding 6% of sucrose on MS media supplemented with 3.0 mg ? L-1 IBA와 3.0 mg ? L-1 BA was one or two times of bulblets expanted than on MS mediun with 0.1 mg ? L-1 2,4-D plus 1.0 mg ? L-1 BA plus 6% of sucrose. Plantlet regeneration was successfully achieved from bulb scale-derived callus, via shoot bud induction or direct bulblet formation.

High-Temperature Behavior of Ba-Doped Boehmite Hydrothermally Prepared from $Al(OH)_3$ and $Ba(OH)_2$

Fujiyohi, Kaichi,Ishida, Shingo The Korean Ceramic Society 1999 The Korean journal of ceramics Vol.5 No.4

Minute boehmite crystals with high aspect rations, which were hydrothermally synthesized from gibbsite in $Ba(OH)_2$ solution, occluded Ba with the Ba/Al molar ratio of about 0.03 in their interlayers. Their surface areas were about 14$\m^2$/g. The Ba-intercalated bohemite samples were partly used for producing $BaAl_{12}O){19}$ with low sinterability by externally supplementing $Ba(OH)_2$, and for forming transient aluminas. The surface area of $BaAl_{12}O){19}$ obtained by firing at $1500^{\circ}C$ for 3 h was 5.3$\m^2$/g, which was significantly lower than 12$\m^2$/g of the sol-gel origin. While a mixture ${\gamma}$-alumina and BaO is known to from $BaAl_{12}O){19}$ at $1200^{\circ}C$, solid state reaction between η-alumina transformed from the Ba-intercalated boehmite and BaO formed from $Ba(OH)_2$ deposited on the boehmite started above $1300^{\circ}C$. This suggests that large sized $Ba^{2+}$ ion occluded in η-alumina considerably suppresses the diffusion of $Al^{3+}$ ion. The surface area of the Ba-intercalated boehmite fired at $1400^{\circ}C$ for 3h was as high as 14$\m^2$/g indicative of its potential applicability to combustion catalysts. But it was decreased to 5.0$\m^2$/g after firing at $1500^{\circ}C$ for 3 h, accompanied by abrupt formations of $\alpha$-alumina and $BaAl_{12}O){19}$ as main products. The suppression of $\alpha$-alumina formation up to $1400^{\circ}C$ also suggests the significant blocking effect of $Ba^{2+}$ ion on the diffusion of the component ions.

스테비아 잎과 마디 배양에 의한 부정신초 형성 및 식물체 재분화

박학봉 ( Hak Bong Park ),최정란 ( Jeong Ran Choi ),고정애 ( Jeong Ae Ko ) 전북대학교 농업과학기술연구소 2009 농업생명과학연구 Vol.40 No.2

고빈도 스테비아 식물체를 재분화 시키기 위해 잎과 마디를 2,4-D, NAA, IBA와 BA를 혼용처리한 MS 배지에 배양하였다. 절편체 종류 및 식물생장조절물질의 종류와 농도가 캘러스 유도, 신초분화 및 식물체 재분화에 미치는 효과를 조사하였다. 잎 절편체에서는 캘러스형성이, 마디 절편체에서는 액아의 분화 및 신장이 양호하였으며 잎절편 배양결과 0.5mg/L 2,4-D와 0.5mg/L BA 혼용처리시 3.5%, 2.0mg/L NAA와 2.0mg/LBA 혼용처리시 24%, 3.0mg/L IBA와 3.0mg/LBA 혼용처리구에서는 36.2%신초가 분화되어 가장 효과적이었다. 마디배양의 경우 마디의 위치 및 치상방향에 따라 캘러스형성, 액아 분화 및 신장에 영향을 미쳤으며 캘러스 형성에는 정단부위쪽 마디가, 그리고 액아의 분화 및 신장은 정단부위 보다는 중앙 및 하단 부위가 양호하였다. 마디의 수직 치상이 수평치상에 비해 액아 분화 및 신장에 효과적이었고, 잎 절편배양에서와 같이 2,4-D와 BA, NAA와 BA 혼용처리보다는 IBA와 BA 혼용처리가 캘러스형성이 양호하였으며, 특히 3.0mg/L IBA와 3.0mg/L BA 혼용처리에서 배양 개체 당 6개의 식물체의 재분화 되어 가장 효과적이었다. In order to produce the high frequency regenerated plants, leaves and stem node segments of Stevia rebaudiana Bertoni M. were cultured on MS medium containing 2,4-D, NAA, IBA and BA. We investigated the effects of kinds of explants, kinds and concentration of plant growth regulators on callus induction, shoot differentiation and plant regeneration. Callus induced easily in the leaf segment and axillary bud or shoot are ready to differentiate or elongate in the stem node segment. In the leaf segment culture, percentages of shoot differentiation were 3.5%, 24% and 36.2% through on MS medium with 0.5 mg/L 2,4-D plus 0.5mg/L BA, 2.0mg/L NAA plus 2.0mg/L BA and 3.0mng/L IBA plus 3.0mg/L BA, respectively. The part of stem node and direction of inoculation affected significantly on callus induction, axillary bud differentiation and shoot elongation in the culture of stem node. The upper part of stem node with apical meristem is effective on the callus formation and the bottom part of that is apt to differentiate the axillary bud or elongate the shoot. Effective differentiated axillary bud could be recognized on the vertical inoculation than horizontal inoculation of stem node. The combination of IBA plus BA is the best plant growth regulators among the that of 2,4-D plus BA and NAA plus BA as like leaf segment culture. Eespecially, six plants per explant regenerated on the MS medium with 3.0mg/L IBA plus 3.0mg/L BA.

‘바’ 짜임월의 문법화 과정 연구

하치근 한글학회 2008 한글 Vol.- No.281

매인이름씨 ‘바’는 <내용>, <일>, <방법>, <경우>와 같은 뜻으로 쓰이면서 임자씨가 월 안에서 취할 수 있는 다양한 월성분 구실을 할 수 있다. 관용구 짜임을 이룬 ‘-ㄴ/는/ㄹ 바에야’는 <어차피 그렇게 되는 경우(처지)>의 뜻이, ‘-ㄴ/는 바와 같이’는 이미 이야기 되고 있는 내용을 앞에서 <제시>하는 뜻이 있다. 그리고 ‘-ㄴ 바이다’는 주로 글말에서 인사말과 같은 격식체에 쓰이면서 말할이가 자신의 심정을 완곡하게 드러낼 때 쓰인다. 관용구 짜임이 이음씨끝으로 문법화하면 인칭상의 제약과 때매김의 제약을 받는다. ‘-ㄴ바’, ‘-는바’, ‘-은바’, ‘-던바’ 이음씨끝은, 어떤 사실을 말하면서 뒤에 보충하는 설명이 따름을 뜻한다. 이 이음씨끝은 <설명>의 기본적인 뜻이 있으나 문맥 상황에 따라서는 <제약>과 같은 주변적인 뜻을 가지기도 하며 입말에는 잘 쓰이지 않고 글말에만 쓰이며 어감상 예스럽고 다소 현학적인 표현에 사용된다. ‘-ㄴ데’, ‘-는데’, ‘-은데’, ‘-던데’ 이음씨끝이나 ‘-ㄴ지’, ‘-는지’, ‘-은지’, ‘-던지’ 이음씨끝은 이음법의 구실을 하면서 문맥 상황에 따라서 마침법의 구실도 한다. 그러나 ‘-ㄴ바’, ‘-는바’, ‘-은바’, ‘-던바’ 이음씨끝은 이음법의 구실만 가능하다. 그 까닭은 이 씨끝은 공식적인 규정이나 논증이 필요한 특수한 글말에서 예스런 느낌을 주면서 제한적으로 쓰이기 때문에 입말에 나타나는 상황의존적인 유추 환경이 조성될 수 없기 때문이다. Incomplete noun ‘ba’ originated from Manchurian, which used to be a complete noun meaning ‘land’ or ‘place’, became an incomplete noun meaning ‘thing’ or ‘doing’ through abstraction process in Middle Korean period. Bound noun ‘ba’ in Modern Korean has the meanings of ‘content’, ‘doing’, ‘method’, and ‘case’, and can have the function of various sentence constituents which the substantives takes in sentences. ‘-niun/nun/riul baeya’ composing idiomatic constructs mean ‘in the case after all’; ‘-niun/nun bawagachi’ suggest already mentio- ned content; ‘-niun baida’ expresses speaker's mind euphemistically in formal spoken greetings. Idiomatic constructs, when grammaticalized as connection endings, are restricted in person and tense. Connection endings ‘-niun ba’, ‘-nun ba’, ‘-dun ba’ after statements of facts indicate that complementary explanation is followed. Connection endings have polysemy because of the complex syntactic relationships between preceding and following clauses. They have the basic meaning of ‘explanation’, and also have the supplementary meaning of ‘restriction’ depending on context; they are usually used in old and pedantic expressions of written language. Connection endings ‘-niun de’, ‘-nun de’, ‘-un de’, ‘dun de’ and connection endings ‘-niun ji’, ‘-nun ji’, ‘-un ji’, ‘-dun ji’ have the function of connection and ending as well depending on context. However, connection endings ‘-niun ba’, ‘-nun ba’, ‘-un ba’ have the only function of connection because these endings are used only in formal rules or argumentative written language and do not have the context-dependent analogical environments as in spoken language.

유연탄 bottom ash의 경량 및 단열 특성

이종규(Jong Gyu Lee),여운호(Woon Ho Yeo) 유기성자원학회 2018 유기물자원화 Vol.26 No.1

FA(Fly ash)에 대해서는 연구가 활발히 진행되는 반면 BA(Bottom ash)의 연구실적은 많지 않으며, 특히 BA 재활용 분야의 연구가 절실히 요구된다. 따라서 본 연구에서 다공성인 건식(공랭식) BA를 연구대상으로 선택해 이를 재료로 활용하여 만든 BA 모르터와 일반 모르터를 비교 분석하여 BA 모르터의 경량 및 단열 특성을 알아보고자 하였다. BA의 경량성을 알아보기 위해 밀도 시험, 단위용적질량 시험, SEM 시험을 하였으며, 단열 시험을 위해 BA 모르터와 일반 모르터 몰드를 KS A 0006에서 정한 상온 · 상습의 환경조건에서 제작 후 항량이 될 때까지 온도 105±2℃에서 건조하였다. 경량성 시험 결과 BA 모르터의 경량성은 일반 모르터의 0.72배로 일반 모르터에 비해 약 30%정도 가볍게 측정되어 BA를 건축물 재료로 활용할 경우 건축물 하중을 줄이는데 크게 기여할 것이다. 또한 단열 시험 결과 BA 모르터의 열전도율은 일반 모르터의 0.70배로 약 30%정도 단열성이 우수하다. Research on FA(Fly ash) is actively carried out, while the research on BA(Bottom ash) is not so, and research on BA recycling field is urgently required. Therefore, in this study, we investigated the lightweight and thermal insulation characteristics of BA mortar by comparing BA mortar made with porous dry BA(air-cooled) and general mortar. To investigate the lightweight of BA, density test, unit volume mass test and SEM(Scanning Electron Microscope) test were performed. BA mortar and general mortar molds were prepared for the thermal insulation test at room temperature and humidity environment determined by KS A 0006 and they were dried at the temperature of 105±2℃ until the weight became constant. As a result of the lightweight test, the lightweight of BA mortar is about 30% lighter than the general mortar. Therefore, BA is expected to contribute to reduce the building load when used as building material. As a result of thermal insulation test, the thermal conductivity of BA mortar is about 30% better than that of general mortar.

SNS를 통해 본 BA式 狀態形容詞의 動態化 연구

고영란(Ko, Young Ran) 한국중어중문학회 2017 中語中文學 Vol.0 No.67

This study is based on 63 of BA-type state adjectives from the 《Modern Chinese Dictionary》, I have observed that they are combined with the aspect particle ‘guo(过)’. The conclusion of this study are outlined in the follows. Many of the BA-type state adjectives that express color, sensation, shape, and properties are able to be combined with the aspect particle ‘guo(過)’. This speech phenomenon seems to have been possible during the transition period in which some BA-type state adjectives semantically shifted towards quality adjectives. The BA-type state adjectives such as ‘huohong(火紅), huibai(灰白),bizhi (筆直)’ signify both description of object and attributes and properties of object. Although in the same form, it is reasonable to consider the first as a state adjective, while the latter as a quality adjective that represents attributes and properties. In that case, only quality adjectives would have been able to be modified by the adverbs of degree like ‘hen(很)’ and negative adverbs ‘bu(不)’ at first, while state adjective could not. However, since this rule is much too complicated, quality adjectives and BA-type state adjectives would have been progressively integrated to receive adverbs of degree like ‘hen(很)’ and negative adverbs ‘bu(不)’. As BA-type state adjective shares similar linguistic function of quality adjective, it can be conjectured that ‘BA-type state adjective’+‘guo(過)’ construction has also emerged. Finally, all of these rules are gradually being broadly extended to the typical BA-type state adjectives by the ‘analogical thinking’.

Ba-ferrite의 분산 안정성 및 멜트블로운 PP/Ba-ferrite 부직포의 물리적 특성

최지선,이동진,Choi, Ji-Sun,Lee, Dong-Jin 한국섬유공학회 2006 한국섬유공학회지 Vol.43 No.6

The size of Ba-ferrite particles was decreased from $0.7{\mu}m\;to\;0.5{\mu}m$ by ball-milling according to SEM observation. The surface of Ba-ferrite particles was treated with stearic acid in order to improve dispersion stability in the polymer matrix. PP composites containing the surface treated Ba-ferrite particle as a magnetic particulate filler were prepared in the form of pellet from PP resin and Ba-ferrite powder by a melt compounding using a single extruder. PP/Ba-ferrite composite fabrics by a melt-blown spinning system were prepared. The relationship between the properties of PP/Ba-ferrite composite fabrics and melt-blown processing factors was investigated with these specimens. A fiber diameter and tensile strength were decreased as die to collector distance increased or as screw turning force decreased. The crystallinity was decreased with increasing Ba-ferrite content according to XRD. It was assumed that the orientation of crystalline domain in the neat PP without Ba-ferrite was increased by drawing in mechanical direction, however, the orientation in the PP composite was decreased according to XRD analysis. A coercive force, maximum magnetization and residual magnetization were increased with the screw turning force. According to the result of TGA measurement, the heat resistance was increased with the Ba-ferrite content and decreasing the die to collector distance.