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박진원,노현석,김진국,조영일 한국고무학회 1997 엘라스토머 및 콤포지트 Vol.32 No.5
Microbial treatment of the powdered waste tire was studied to recycle the waste tires. Chemoautotrophic, acidophilic, iron-oxidizing bacterium was employed to unvulcanize the powdered tires. Biotreated rubber powder was compared to a untreated and a chemically treated powder. The results showed sulfur content of rubber powder (1.33%) were decreased to 1.22 by chemical treatment and 1.12% by microbial treatment for 20 days, 0.88%, for 30 days. One of the problems of the powdered utilization of the waste tires is that rubber powder leads to decrease mechanical properties when it is compounded with other virgin polymers. When the biotreated powder was compounded with natural rubber, the mechanical properties were less decreased when untreated or chemically treated powder. Therefore, the microbial treatment can be one of useful methods to recycle the waste tire.
( Joe¸ Sue Jean ) 동국대학교 영어권문화연구소 2012 영어권문화연구 Vol.5 No.2
This paper aims to look into internal/external representation of conflicts in Yeats’s political poems. To trace the nature of such conflicts, I look briefly at the rise of cultural nationalism to trace the nature of such conflicts. This cultural revival foregrounds the issue of conflicts between Yeats and audience, which creates tension that culminates in the Easter Rising, and result in the birth of terrible beauty. In this context, I would argue that what constitutes the “political” in Yeats's poems are Yeats's conflicts with himself. In this backdrop, I look at the conflicts in the poems “Easter, 1916”, “Sixteen Dead Men”, “The Rose Tree” and “On a Political Prisoner” through the central oxymoron “terrible beauty. In “Easter, 1916”, I would talk about how the sacrifice of the nationalists gives birth to terrible beauty, which is a fusion of representations of Ireland as beautiful young maiden and old ugly woman. In “On a Political Prisoner” as I would discuss how terrible beauty is embodied in a woman by juxtaposing an image of beautiful and young Constance Markiewicz in the distant past and in more recent past and present, when she turned ugly by her involvement in political activities and imprisoned as a result. I conclude by pointing to the ambivalence of conflicts as something which poses a threat and yet inspires Yeats's poetry.
Output-oriented power saving mode for mobile devices
Joe, Hyunwoo,Kim, Jungseok,Lee, Jemin,Kim, Hyungshin North-Holland 2017 Future generations computer systems Vol.72 No.-
<P><B>Abstract</B></P> <P>Fast battery discharge is still the most nerve wracking issue for smartphone users. Though many energy saving methods have been studied, still users are not satisfied with their phone’s battery. Power management system provides low power mode when the phone is not in use for a long time. When the user is interacting with the phone, current system assumes the user is interactive and should keep the device in active mode. However, this is not true. After the user’s interaction, the device processes the request and displays the result on the smartphone’s output device. During this period, the user cannot see any meaningful information from the phone. In this paper, we propose a new low power mode where we put smartphone’s output device into low power mode while phone is preparing result for the user. We named this as <I>o-sleep</I>, an output-oriented power saving mode. While a device is processing a user’s request, output from the device may require preparation time. We consider the situation as the device’s output idle time and put the phone’s user interfaces into sleep mode while maintaining other subsystems in active state. To prove our concept, we have applied our technique onto various smartphone applications with varying operation environment. From the experiment, we found that the smartphone entered the o-sleep mode up to 58% of its total usage time in various test scenarios. Usability study supported feasibility of our proposed method.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We identified user idle time while the phone is in preparation of output data. </LI> <LI> We propose phone’s output-oriented power saving mode. </LI> <LI> We implemented o-sleep mode with Android applications. </LI> <LI> We evaluated o-sleep mode with various realistic experiments and the result shows that we can achieve meaningful energy saving. </LI> <LI> From the experiment, we found that the smartphone entered the o-sleep mode up to 58% of its total usage time in various test scenarios. </LI> </UL> </P>
Joe L. Frost,송정 대한어린이교육협회 2007 어린이교육 Vol.- No.9
미국은 지금 아동 발달 및 교육 분야에 “거대한 폭풍(perfect storm)”이 불고 있다. 거대한 폭풍을 형성하는 다양한 요소들의 결합이 현재의 미국 교육을 변화시키고 새로운 아동기 문화를 형성시키고 있다. 이러한 요소들로는 첫째, 학교교육의 표준화, 둘째, 전통적이고 자발적인 아동들의 놀이 소멸, 셋째 미국 및 전 세계의 빈곤 증가가 있다.