• Animal Bioscience
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• 제34권7호
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• pp.1146-1156
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• 2021

Objective: The aim of the study was to compare the effect of two plant additives, rich in polyphenolic compounds, supplemented to sheep diets on microorganisms and carbohydrate fermentation in rumen. Methods: In the experiment, 6 ewes of the Polish Mountain breed were fitted with ruminal cannulas. Sheep were divided into three feeding groups. The study was performed in a cross-over design of two animals in each group, with three experimental periods (n = 6 per each group). The animals were fed a control diet (CON) or additionally received 3 g of dry and milled lingonberry leaves (VVI) or oak bark (QUE). Additionally, plant material was analyzed for tannins concentration. Results: Regardless of sampling time, QUE diet increased the number of total protozoa, as well as Entodinium spp., Diplodinium spp. and Isotrichidae family, while decreased bacterial mass. In turn, a reduced number of Diplodinium spp. and increased Ophryoscolex spp. population were noted in VVI fed sheep. During whole sampling time (0, 2, 4, and 8 h), the number of protozoa in ruminal fluid of QUE sheep was gradually reduced as opposed to animals receiving CON and VVI diet, where rapid shifts in the protozoa number were observed. Moreover, supplementing sheep with QUE diet increased molar proportions of butyrate and isoacids in ruminal fluid. Unfortunately, none of the tested additives affected gas production. Conclusion: The addition of VVI or QUE in a small dose to sheep diets differently affected rumen microorganisms and fermentation parameters, probably because of various contribution of catechins in tested plant materials. However, it is stated that QUE diet seems to create more favorable conditions for growth and development of ciliates. Nonetheless, the results of the present study showed that VVI and QUE additives could serve as potential natural modulators of microorganism populations and, consequently, carbohydrate digestion in ruminants.

• 충청수학회지
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• 제18권1호
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• pp.33-39
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• 2005

In this paper, we prove the existence of a common random fixed point of two random multivalued generalized contractions by using functional expressions.

• 한국자기학회:학술대회 개요집
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• 한국자기학회 2008년도 Asian Magnetics Conference
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• pp.38.1-38.1
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• 2008

• 대한음성학회지:말소리
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• 제39호
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• pp.73-86
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• 2000

This paper aims to research the influence of mother tongue (Polish) on the perception of a foreign language (Korean) i.e. how vowel sounds that are totally unfamiliar to the listeners are perceived, how the similar sounds are perceived and whether the perception differs according to the phonetic values of the neighbouring sounds. As a result, the degree of the influence of Ll on the vowels of L2 is different in each case and mostly depends on the familiarity of the vowel in question and on the articulatory similarities between the vowels in both languages. The results are as follows; The best perception was observed with Korean /i/ and /a/ (very similar places of articulation in both languages). The worst degree of perception was Korean /(equation omitted)/ that is very unfamiliar to Polish subjects. Vowels that are not so different from the Ll sounds were perceived fairly well. Another important result is that Polish listeners seem to be more sensitive to lip rounding than to the height of the tongue. The role of the neighbouring sounds seems to be of a considerable importance, Depending on the preceding vowel, a sudden drop or rise in the degree of the perception was observed.

• Smart Structures and Systems
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• 제6권3호
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• pp.335-347
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• 2010

Recent advances in hardware and instrumentation technology have allowed the possibility of deploying very large sensor arrays on structures. Exploiting the huge amount of data that can result in order to perform vibration-based structural health monitoring (SHM) is not a trivial task and requires research into a number of specific problems. In terms of pressing problems of interest, this paper discusses: the design and optimisation of appropriate sensor networks, efficient data reduction techniques, efficient and automated feature extraction methods, reliable methods to deal with environmental and operational variability, efficient training of machine learning techniques and multi-scale approaches for dealing with very local damage. The paper is a result of the ESF-S3T Eurocores project "Smart Sensing For Structural Health Monitoring" (S3HM) in which a consortium of academic partners from across Europe are attempting to address issues in the design of automated vibration-based SHM systems for structures.

• 동유럽발칸연구
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• 제35권
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• pp.153-186
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• 2013

이 논문은 1989년 체제 전환 이전과 이후에 발표된 드라마 가운데 '디아스포라'를 소재로 한 두 편의 텍스트를 선정하여 연구·분석해봄으로써 각기 다른 정치체제(사회주의 체제와 자본주의 체제)에 귀속된 폴란드 이민자들이 조국을 떠나 타지에서 경험하게 되는 갈등과 혼란의 구체적인 양상을 비교하려는 목적으로 집필되었다. 체제전환 이전의 작품으로는 스와보미르 므로젝(Sławomir Mrożek)의 『이민자들(Emigranci)』(1974)을, 체제전환 이후의 작품으로는 야누쉬 그워바츠키(Janusz Głowacki)의 『뉴욕 안티고네(Antygonaw Nowym Yorku)』(1992)를 선정하였다. 연구대상으로 선정된 이 두 편의 드라마는 집필 시기는 다르지만, 폴란드 문학사에서 전후(戰後) '이주문학(literatura emigracyjna)'의 대표작으로 인정받는 상당히 중요한 작품들이다. 므로젝과 그워바츠키는 각기 자신의 작품 속에서 2차 대전 이후 '구(舊) 소련의 위성국가'이자 '약소국' 혹은 '후진국'이라는 멍에를 짊어진 채 자의 반, 타의 반으로 이주를 선택해야만 했고, 냉전 체제 이후에는 보다 나은 경제 조건을 찾아 서방으로 떠났던 폴란드 이민자들이 낯선 이국땅에서 '경계인'이자 '이방인'으로 겪어야만 했던 냉혹한 현실, 그로 인한 심리적 방황과 고민, 잃어버린 고향에 대한 노스탤지어, 정체성 혹은 민족성에 대한 탐구 등을 생생하게 담아내고 있다. 세계 제 2차 대전과 냉전시대를 겪으며 사회주의 체제와 자본주의 체제를 모두 경험했고, 그 과정에서 유달리 많은 해외 이민자를 배출한 폴란드는 문학 작품을 통해서 폴란드 이민자들이 겪는 정체성의 혼란과 상실감 등을 정교하게 그려냈다. 특히 혹독한 검열로 인해 문학이 정치 이데올로기의 도구로 전락할 수밖에 없었던 사회주의 체제 당시 (1948~1989), 폴란드 디아스포라 공동체는 20세기 폴란드 문학의 정전(正典)으로 손꼽히는 여러 편의 명작들을 해외에서 출간함으로써 고유한 문학적 전통을 계승해나가는데 이바지했다. 그러므로 '이주문학(literatura emigracyjna)'은 20세기 폴란드 문학이 역사적 격동기를 겪으며 일구어 낸 소중한 성과라고 할 수 있다.

• Computers and Concrete
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• 제9권5호
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• pp.375-387
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• 2012

The objective of this investigation was to develop rules for automatic categorization of concrete quality using selected artificial intelligence methods based on machine learning. The range of tested materials included concrete containing a new waste material - solid residue from coal combustion in fluidized bed boilers (CFBC fly ash) used as additive. The rapid chloride permeability test - Nordtest Method BUILD 492 method was used for determining chloride ions penetration in concrete. Performed experimental tests on obtained chloride migration provided data for learning and testing of rules discovered by machine learning techniques. It has been found that machine learning is a tool which can be applied to determine concrete durability. The rules generated by computer programs AQ21 and WEKA using J48 algorithm provided means for adequate categorization of plain concrete and concrete modified with CFBC fly ash as materials of good and acceptable resistance to chloride penetration.

• Structural Engineering and Mechanics
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• 제4권3호
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• pp.243-255
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• 1996

This paper presents a model of a layered, delaminated composite beam. The beam is modelled by beam finite elements, and the delamination is modelled by additional boundary conditions. In the present study, the laminated beam contains only one delaminated region through the thickness direction which extends to the full width of the beam. It is also assumed that the delamination is open. The influence of the delamination length and position upon changes in the bending natural frequencies of the composite laminated cantilever beam is investigated.

• Journal of Magnetics
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• 제4권1호
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• pp.17-21
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• 1999

The GMR ($d_Cu$) oscillatory behaviour as well as the widths of first and the second antiferromagnetically coupled ranges of the Permalloy ($Py=Ni_{83}Fe_{17}$)/Cu multilayers have been found to be strongly affected not only by the presence of the superparamagnetic/paramagnetic entitles located at the Py/Cu interfaces but mainly by the existence of the magnetic bridges between Py layers. The effectiveness of the magnetic bridges has been found to be temperature dependent, leading to the temperature dependence of the remnant to saturation magnetization ratio ($M_R/M_S$). We have found that for Py/Cu multilayers with equal Py and Cu layer thicknesses a high field sensitivity of the GMR effect (0.4%/Oe) and negligible hysteresis can be achieved when the number of Py layers decreases from 100 to 6. Sensitivity can be further improved by increasing the Py layers thickness, but the hysterstic effect becomes more pronounced then.

• 한국마이크로전자및패키징학회:학술대회논문집
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• 한국마이크로전자및패키징학회 2002년도 춘계 기술심포지움 논문집
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• pp.274-278
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• 2002

The purpose of this study was to characterize the reaction of Cu surface with Cu slurry and CMP performance as a function of additives in CMP slurry. The polish rate of Cu was dependent on the kind of organic acids added in slurry. It was considered that polish rate of Cu was dependent on the concentration of carboxylates and mean particle size. When the etchant and oxidant were added in slurry, the highest removal rate and lower etch rate were measured at neutral pH. The addition of etchant, oxidant and pH adjustor played key roles of CMP ability in slurry. As the pH increased, polish rate of Cu was increased by the enhanced the mechanical effects due to effective dispersion of slurry particles. Alumina abrasives was more desirable for 1st step slurry because of high removal rate of Cu and high selectivity ratio among TaN and Cu.