• The Korean Journal of Mycology
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• v.14 no.3
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• pp.225-229
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• 1986

Cellulosic substance which plays an important role in carbon cycle is most abundant in the nature world. Some higher fungi are able to digest cellulose directly to satisfy their carbohydrate requirement. Then, in order to investigate the enzymatic components of Lenzites betulina (Fr.) being wood rot, that fungus was collected in Kwangneung area. The carpophore of the fungus was smashed with cool distilled water, extracted and salted out by ammonium sulfate. And then the precipitate was purified by dialysing with visking tube and dissolved with pH 7.8 ammonia water, and the extract was filtrated. The fraction of filtrate was obtained as light brown powder after lyophilization, and determined cellulolytic activity. Cellulolytic potency of Lenzites betulina (Fr.) was 1. 65 unit/ml. The cellulase of Lenzites betulina (Fr.) was stable at below $45^{\circ}C$ and range of pH $4.5{\sim}6.0$ and is completely inactivated at $60^{\circ}C$ for 15 minutes. The optimum condition for the enzymatic reaction was $40^{\circ}C$ and pH 4.0. The enzyme activity was not influenced by the presence of $Ca^{2+}$ and $Fe^{2+}$.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 1996.06c
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• pp.2-5
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• 1996

Orissa is one of the major rice growing states of India. The state covers an area of 15.54 mha with 6.00mha cultivable holding is 1.46 ha. The power input is much below the national average of 0.87 hp/ha. Recently, the Government of Orissa has accorded equal status to Agriculture as given to the Industry with determination to increase the power input for agricultural production to2.54 hp/ha so as to obtain an average rice productivity of 3.0t/ha. Appropriate power units so as to be available with in the purchasing power of the small size farm owners in lieu of a pair of bullocks appear to be the right approach and is found to be in line with the highly successful Japanese and Korean model of small farm mechanization . The state needs 0.25m units of small tillers and tractors per year. The present population of tractors and power tillers in the state is about 11000nos. In India, two manufactures in collaboration with Japanese firms started manufacturing of power tiller sin 197 . The present production of power tillers in the country is about 1000 unit per year which is inadequate to meet the demands of all the stats. To meet the demands of the Orissa state, three Chinese model power tillers imported by local agencies are being supplied to the farmers during the past two years. Encouraged by the demand of power tillers in the state, three local manufacturing units located at Bhubanewar have come up with their own model of light weight power tillers(1.5 to 3.0 hp) during the past one year. These machine have been evaluated in the farms of the university and have been found to be promising . There is a target of supplying during 1996-97. The local manufacturers are in need of international collaboration for technical knowhow to manufacture these machine economically to meet the requirement of the farmers.

• Archives of design research
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• v.14 no.3
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• pp.49-58
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• 2001

The communication designer in the multimedia age should have a consideration that the sound also can be an important expression element to transmit ones thought as well as the visual sense like color, shape and motion. As you already know, someones thought can be better understood when transmitted to others using the visual and auditory senses together than using the visual or auditory sense alone. The meeting of sight and hearing bases on the synesthesia. For example, low sound reminds a person of dark color and high sound usually reminds light color. And a percussion instrument reminds a person a circle and melody reminds a line. The visual and auditory senses In communication of the multimedia age should act as an independent expression element gotten out of the synchronizing that just serves simple sight and related sound at the same time. Interaction between sight and hearing arose a different emotion that cannot be happened just by one element alone. So, the programs of communication design education in this multimedia age should fulfill the requirement that it can develop ones expression ability through the understanding of interaction between sight and hearing. In this study, we suggest the education programs Classified into following categories; audio visual Gestaltung, audio visual moving graphics, audio visual design.

• Aerospace Engineering and Technology
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• v.3 no.1
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• pp.126-133
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• 2004

Photogrammetry, as its name implies, is a 3-dimensional coordinate measuring technique that uses photographs as the fundamental medium for metrology. In the last few years the accuracy of photogrammetry has increased dramatically thanks to the rapid advance of digital camera manufacturing technique. This paper discusses photogrammetric measurement of the interface surface of MSC(Multi-Spectral Camera), which is a main payload of KOMPSAT-2. Total 24 paper targets on the objective surfaces and two scale bars calibrated with high accuracy were used for measurement, and multiple images were taken from 11 different camera angles by using a spacecraft rotation dolly. As a result of analysis, 3D coordinates of each targeted point were obtained and the flatness value based on the selected reference plane was calculated and compared with the pre-determined requirement. The technique acquired by this study is expected to be used for the 3D precise measurement of ultra-light weight and inflatable space structures such as a satellite antenna and a solar array.

• Animal cells and systems
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• v.10 no.4
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• pp.227-231
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• 2006

Micro-deletions at specific loci of the Y chromosome have been observed frequently in male infertility patients, suggesting that genes in these regions are involved in male germ cell development. DAZ is a representative male infertility gene at the AZFc locus of the Y chromosome. Since DAZ contains an RNA binding motif along with so-called a DAZ domain, it was proposed to participate in RNA metabolism during spermatogenesis. A mouse gene homologous to the human DAZ gene has been cloned and named Dazl (DAZlike). Dazl is autosomal and expressed in the testis and also at a low level in the ovary. Male mice homozygous for the Dazl null allele have small testes with a few spermatogonia and almost complete absence of germ cells beyond the spermatogonial stage, suggesting the requirement of Dazl for entry or progression through meiosis. However, its exact cellular functions have not been understood yet. In order to investigate cellular functions of Dazl, we decided to isolate candidate interacting protein genes of the mouse Dazl, using yeast two-hybrid screening. A number of candidate Dazlinteracting proteins have been isolated, such as Bprp, Acf, Hgs, Murr1, Nbak3 and Ranbp9, but dynein light chain 1 (Dlc1) was most predominant. A strong interaction of Dazl with Dlc1 suggests that Dazl might function as an mRNA adaptor to the dynein motor complex.

• The Korean Journal of Pain
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• v.8 no.2
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• pp.244-250
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• 1995

Many clinical and laboratory experiments have been developed to prevent or decrease post-operative pain. One of these methods is pre-operative administration of opioid. Recently there have been differing and debatable results reported of pre-operative treatment for post-operative pain management. It was our study to determine whether pre-operative epidural fentanyl prevented central facilitation or wind up of spinal cord from nociceptive afferent input through c-fibers. We evaluated the effect of epidural fentanyl 50 mcg 10 minutes before operation and 10 minutes before the end of surgery. 28 parturient women for Cesarean Section were randomly allocated to receive the epidural fentanyl either at 10 minutes before operation (Group 1, n=14) or 10 minutes before the end of surgery (Group 2, n=14). All of the 28 parturient women were anesthetized with epidural block using (22 ml of) 2% lidocaine supplemented with light general anesthesia ($N_2O$ 2 L/min-$O_2$, 2 L/min), we controlled post-operative pain with epidural PCA(patient controlled analgesia) infusion of meperidine and 0.07% bupivacaine. The action duration of epidural fentanyl from the end of surgery to the first requirement of analgesics with epidural PCA were not significantly different between the two groups. No significant differences between two groups were observed in VAS pain score at 1, 2, 3, 6, 12, 24, and 48 hours after the operation. The number of self administration of narcotics with PCA during 48 hours after surgery were the same between the two groups. The hourly infusion rates of demerol were the same. Pre-operative administration of fentanyl was not clinically effective compared to administration just before the end of surgery for postoperative pain control.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.3
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• pp.1-6
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• 2015

The IoT(Internet of things) technology enable objects around user to be connected with each other for sharing information. To support security is the mandatory requirement in IoT because it is related to the disclosure of private information but also directly related to the human safety. However, it is difficult to apply traditional security mechanism into lightweight devices. This is owing to the fact that many IoT devices are generally resource constrained and powered by battery. PSK(Pre-Shared Key) based approach, which share secret key in advance between communication entities thereafter operate security functions, is suitable for light-weight device. That is because PSK is costly efficient than a session key establishment approach based on public key algorithm. However, how to safely set a PSK of the lightweight device in advance is a difficult issue because input/output interfaces such as keyboard or display are constrained in general lightweight devices. To solve the problem, we propose and develop a secure PSK configuration scheme for resource constrained devices in IoT.

• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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• 2001.05a
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• pp.119-126
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• 2001

The potential pollution problems resulting from tanker collision necessitate the requirement for an effective structural design and the development of relevant safety regulation. During a few decades, the great effort has been made by International Maritime Organization and the Administration, etc, to reduce oil spillage from collision accidents. However there is still a need for investigation in the light of structural evaluation method for the experiments and rational analysis, and design development for an operational purpose of ships. This study is aimed at investigating a complicated structural response of bow structures of oil carriers for assessing the energy dissipation and crushing mechanics of striking vessel through a methodology of the numerical analysts for the various models and its design changes. Through this study an optimal bow construction absorbing great portion of kinetic energy in the least penetration depth prior to reach to the cargo area and an effective location of collision bulkhead are investigated. In order to obtain a rational results in this study, three stages of response analysis procedures are performed as follows; 1). 16 simplified ship models are used to investigate the structural response against bow collision with variation of primary and secondary members. Mass and speed are also varied in two conditions. 2). 21 models conisted of 5 size of full scaled oil carriers are used to perform the collision simulation with the various sizes and deadweight delivered in a recent which are complied with SOLAS and MARPOL. 3). 36 models of 100k oil carrier are used to investigate the structural response and its influence to the collision bulkhead against bow collision in variation with location of collision bulkhead, primary mombers, framing system and colliding conditions, etc.

• Journal of the Korea Society of Computer and Information
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• v.15 no.8
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• pp.23-30
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• 2010

Flash memory is non-volatile and can retain data even after system is powered off. Besides, it has many other features such as fast access speed, low power consumption, attractive shock resistance, small size, and light-weight. As its price decreases and capacity increases, the flash memory is expected to be widely used in consumer electronics, embedded systems, and mobile devices. Flash storage systems generally adopt a software layer, called FTL. In this research, we proposed a new FTL mechanism for overcoming the major drawback of conventional block mapping algorithm. In addition to the block mapping table, a index block mapping table with a small size is used to indicate sector location. The proposed indexed block mapping algorithm by adding a small size. By the simulation result, the proposed FTL provides an enhanced speed than a conventional hybrid mapping algorithm by around 45% in average, and the requirement of mapping memory is also reduced by around 12%.

• Journal of Arbitration Studies
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• v.27 no.3
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• pp.33-52
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• 2017

This article tried to describe the laws concerning the enforcement of foreign arbitration awards in Indonesia. This issue is relevant in the light of frequent curiosity of foreign commentators, business communities, practicing lawyers, concerning the arbitration in Indonesia, in particular its enforcement of foreign arbitration awards. The main laws on arbitration analyzed were, firstly, the Indonesian law on arbitration, namely Law No 30 of 1999 on Arbitration and Alternative Dispute Resolution and the Presidential Regulation No 34 of 1981 concerning the Ratification of the New York Convention on the Recognition and Enforcement of Foreign Arbitral Awards of 1958. The provisions of Law of 1999 analyzed were confined to its international provisions on arbitration, in particular the requirements for the enforcement of foreign arbitration awards and also the requirement that the awards do not violate Indonesian public policy. The problem with the Indonesian arbitration law (and the courts' practice) were that no provisions which provided guidance or meaning with regard to public policy. The absence or lack of guidance or definition on public policy had some times confused lawyers or the parties in dispute fearing that their arbitration awards would not be enforced due to the violation of public policy. Secondly was the different opinion of two Indonesian arbitration experts, Prof. Sudargo Gautama and Prof. Priyatna Abdurrasyid. Both scholars had rather different opinions with regard to the meaning of public policy in Indonesia. Thirdly was a recent case law, Astro Nusantara Bv et.al., vs PT Ayunda Primamitra Case (2010) decided by the Indonesian Supreme Court with regard to the enforcement of foreign arbitration awards. This article concluded that the Indonesian court, in particular the Central of Jakarta Court, so far have given its support that the execution of foreign awards was duly enforced.