• The Journal of Korean Institute of Communications and Information Sciences
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• v.32 no.11A
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• pp.1146-1153
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• 2007

In this paper, we analyze the I/Q imbalances effects at the WiBro uplimk when using direct-conversion RF transceiver. If I/Q imbalance exists, the transmit signal is spread over two sbcarriers. As a result, phenomenon of performance reducing is produced. Contrary to OFDM system in which one user uses all subcarrier, symmetrical two subcarriers are assigned other users in OFDMA system. I/Q imbalances elements can't be estimated such a conventional allocation method of tiles in subchannel and compensated. In order to solve the problem, We propose a new method in order that symmetrical two subcarriers are assigned one user. If novel method is applied, we can estimate I/Q imbalances and compensate distortion received signal. As a result, we can obtain a performance similar performance when I/Q imbalances is not existed. Also, if proper detection methods are used, we get the effect of performance improvement, because of diversity gain what is happened due to combining I/Q imbalances with multi path fading channel.

• The Journal of Society for e-Business Studies
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• v.5 no.1
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• pp.135-158
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• 2000

In recent years, many retail businesses jumped on the Internet auction bandwagon and paid substantially high fees to learn and develop proper business strategies for this new environment. Unlike what most businesses in the real world presume, this research shows that discriminatory-price ascending-bid auctions in a digital economy might be not very beneficial for the sellers on the Internet, if sellers sell the identical digital products through both a typical posted-price market and an auction. Using an extensive technology infrastructure along with suitable incentives and rules for market agents, we found that a discriminatory-price ascending-bid auction, which is the most popular auction mechanism on the Internet, serves consumers better than it does the sellers or producers in the digital economy. That is, the average prices for digital goods in these auctions are substantially lower than the prices in a posted-price market. This shows that it is not so wise for sellers to jump on the bandwagon of Internet auctions, if there is a market place with posted-price mechanisms which sells comparable items, or if a seller does not have special advantages or strategies in this new market institution. Electronic market mechanisms provide powerful means of understanding and measuring consumer characteristics including willingness-to-pay and other demographics for sellers or producers. Many concern that sellers may extract the entire surplus from the market by using customization on the Internet, thus consumers will be worse off in this digital economy. We found that these sellers who can customize their products and prices fail to capture the whole consumers surplus and cannot exercise a monopoly. One major explanation for this phenomenon is that the competition among the sellers prohibits them from charging prices according to customers demand for each product, where switching from one seller to another is not so difficult for the customers, and reselling products among the buyers are prohibited.

• Lingua Humanitatis
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• v.5
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• pp.75-92
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• 2003

One of the distinctive features of Korean language is that it has a fine hierarchical regimentation of language uses, perhaps finer than English, Chinese or Japanese. If English language uses have a hierarchical structure they are to be thick. You may respond to any of your male colleagues often by saying either "Yes, Sir" or "Yes, John". But Korean speakers attend to the One grades of differences of social positions of a speaker and a hearer and they show the respect of the difference by adding or dropping relevant suffixes of verbs which Korean language has developed. For example, one yew difference would affect how you choose a suffix of verbs you use to speak to your hearer and two year difference often leads to the adoption of still another fitting suffix of the same verb. One year criterion works not only in 3my barracks, school dormitories but also in government offices. business sectors. Korean speaking people have been taught to use this finely regimented hierarchical language. I try, in this paper, to develop the idea that hierarchical regimentation of Korean language uses is not humane. 1 of for the main argument for the thesis as what follows: How could one justify the hierarchical regimentation of a language like Korean\ulcorner Only if there is an essential structure in which the fine grades of differences of social positions of all the people are distinct; The essentialism here involved is not plausible. And I may add that language is to be used fur the purposes of communication, rationalization and expression. If true, language use is a genuine art of liberation or humanization. Any overt hierarchical language tends to damage those purposes and more to enforce those oppressive elements already existing in the community. Then, a hierarchical language is to defeat its own purpose.

• Proceedings of the Safety Management and Science Conference
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• 2013.04a
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• pp.19-29
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• 2013

Slips and falls are associated with many occupational injuries in Korea. It is also estimated that slipping are major contributors to slip, trip and fall injury burden. So "LOCAL RULE ON OCCUPATIONAL SAFETY AND HEALTH STANDAR D" must be improved, especially article 3(prevention of slip, trip and fall). The primary purpose of the present study is to determine if, and to what extent, the standard could be improved in present environment. In order to fulfill our objective, the another regulation in Korea and foreign countries were investigated and reviewed. Many kind of standard, mandatory documents and guideline were also reviewed. And then, regulations, standard, guideline etc. reviewed were compared with each others. The article 3 was revised as below. 1. The floors of the traffic route in workplace shall have no hole or slope, or be uneven or slippery so as, in each case, to expose employees to slip, trip and fall risk, except if adequate measures have been taken to prevent a employees falling. 2. The employer shall design, install and fix the drain for effective drainage if fluid contaminants were frequently occurred. So far as is reasonably practicable, An employer shall keep the workplace clean, sanitary, and dry so that employees won't have any risk to tripping or slipping at the workplace. 3. To facilitate cleaning, every floor, workplace, and passageway shall be, so far as is reasonably practicable, kept free from protruding objects, splinters, holes, etc. Also, some criteria was developed in this study. Standard and criteria developed in this study will help to prevent slip, trip, and fall injuries.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.35
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• pp.101-124
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• 2007

This paper purposes to examine the setting aside and the refusal of enforcement of arbitral awards and their implications for practitioners. The aim of challenging an award before a national court at the seat, or place, of arbitration is to have it modified in some way by the relevant court, or more usually, to have that court declare that the award is to be disregarded (i.e. "annulled" or "set aside") in whole or in part. If an award is set aside or annulled by the relevant court, it will usually be treated as invalid and accordingly unenforceable, not only by the courts of the seat of arbitration but also by national courts elsewhere. This is because, under both the 1958 New York Convention and the UNCITRAL Model Law, the competent court may refuse to grant recognition and enforcement of an award that has been "set aside" by a court of the seat of arbitration. The New York Convention set out various grounds for refusal of recognition and enforcement of an arbitration award. The provisions of the Model Law governing recognition, enforcement or setting-aside of awards are almost identical to those set out in the Convention. Especially, the New York Convention and the Model Law state that an arbitral award may be refused and set aside if a national court of the place of arbitration finds that the award is in conflict with the public policy of its own country. Each state has its own concept of what is required by its "public policy". It is possible to envisage, for example, a dispute over the division of gaming profits from a casino. In many states, the underlying transaction that led to the award would be regarded as a normal commercial transaction and the award would be regarded as valid. Indeed, it is a consistent theme to be found in the legislation and judical decision of many countries. If a workable definition of "international public policy" could be found, it would provide an effective way of preventing an award in an international arbitration from being set aside and refusal for purely domestic policy consideration.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.5 no.1
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• pp.194-200
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• 1994

When children exhibit unusually intense or persistent sexual interests or behavior, this is an indication that they have been exposed to more than the expectable amount of sexual experience, Although sexualized behavior and/or statement is a symptom of sexual abuse, it is not necessarily an indication of sexual abuse. The possibility of false allegation needs to be considered, particularly if allegations are coming from the parent rather than a child, if parents are engaged in dispute over custody or visitation, and/or if the child is a preschooler. False allegations may arise in other situations as well, such as the misinterpretation of a child's statement or behavior by relative or caretakers. And children may make false statement in psychiatric evaluations. A case of false allegation of sexual abuse made by mentally retarded 10 year-old girl who has been located in an institute is presented. During her evaluation process, it was clinician's diagnostic impression that she had no been sexually abused but sexually stimulated in some way, and most of what she said was a fantasy lie. Its pathological mechanism is discussed in terms of pseudologia fantastica along with the review of literatures.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.22 no.8
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• pp.1139-1145
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• 2018

According to the prosecutors' office's statistics for 2014, 53% of a bicycle users have experienced theft. The reason for the high rate of bicycle stolen in Korea is that there is no bicycle management system. This is because they do not use bicycle numbers to manage bikes like cars do. Most people do not know if they have a VIN(Vehicle Identification Number) on their bike. If the buyer registers the bicycle in the bicycle management blockchain system, anyone can view the information registered in the chain, so that if the bicycle number is filled in, the bicycle can be identified. In addition, when an accident occurs, blockchain will record what kind of equipment it is replacing, like an automobile, to manage all the information about the bicycle. In this way, consumers can inquire whether they have a history of accident when they make a second-hand transaction. In this paper, we propose a method to construct bicycle management system using bicycle VIN.

• Journal of the Earthquake Engineering Society of Korea
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• v.16 no.4
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• pp.1-8
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• 2012

Domestic steel moment resisting frames were designed in accordance with the former KBC2005 and the current KBC2009, and then their seismic performance was evaluated in accordance with FEMA355F by utilizing nonlinear dynamic analysis. The results from the procedure in FEMA355F were different with those from the capacity spectrum method utilizing nonlinear static push-over analysis. In particular, the domestic steel moment resisting frames have a weak panel zone, so their behavior can be estimated more precisely by nonlinear dynamic analysis. The domestic steel moment resisting frames satisfied the performance goal if located at a site class $S_B$ or $S_C$, regardless of the story number and the response modification factor. However, if they are located at a site class $S_D$ or $S_E$, performance goal satisfaction cannot be guaranteed. No matter what standard is used for the design, KBC2005 or KBC2009, the domestic steel moment resisting frames may possess satisfactory seismic performance if the site condition is relatively good.

• The Korean Journal of Pain
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• v.32 no.3
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• pp.187-195
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• 2019

Background: Steroid injections are commonly used in pain clinics to relieve pain and treat inflammation. In Korea, these steroid injections are well known as 'ppyeojusa', which means to inject into the bone in Korean. Some patients often have a negative perception of this treatment method due to inaccurate information about the treatment and side effects of steroids. The purpose of this study is to investigate patients' perception and knowledge of ppyeojusa. Methods: A questionnaire about ppyeojusa was completed by patients who visited one of the pain clinics in nine university hospitals, from August 1 to September 10, 2017. Results: Three-hundred seventy-four patients completed the survey. Eighty-five percent of patients had had ppyeojusa, and 74% of the respondents had heard of ppyeojusa from the mass media, friends or relatives. Only 39% of the patients answered that this injection was safe without side effects if properly spaced. Of the patients surveyed, 21% responded that ppyeojusa are "injections into the bone"; while 15% responded that ppyeojusa are "terrible injections that melted 'the bone if used a lot'". Half of the patients did not know what the active constituent is in ppyeojusa. If steroid injections are advised by the pain specialists, 89% of the patients would consent. Conclusions: Most pain clinic patients have heard of ppyeojusa. Most patients obtained information about ppyeojusa from mass media, rather than their physicians. Therefore, it is likely that most patients have inaccurate knowledge.

• International Journal of Advanced Culture Technology
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• v.6 no.4
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• pp.275-283
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• 2018

Cancer show distinct pattern of gene expression when it is compared to normal. This difference results malignant characteristic of cancer. Many cancer drugs are targeting this difference so that it can selectively kill cancer cells. One of the recent demand for personalized treating cancer is retrieving normal tissue from a patient so that the gene expression difference between cancer and normal be assessed. However, in most clinical situation it is hard to retrieve normal tissue from a patient. This is because biopsy of normal tissues may cause damage to the organ function or a risk of infection or side effect what a patient to take. Thus, there is a challenge to estimate normal cell's gene expression where cancers are originated from without taking additional biopsy. In this paper, we propose in-silico based prediction of normal cell's gene expression from gene expression data of a tumor sample. We call this challenge as reverting the cancer into normal. We divided this challenge into two parts. The first part is making a generator that is able to fool a pretrained discriminator. Pretrained discriminator is from the training of public data (9,601 cancers, 7,240 normals) which shows 0.997 of accuracy to discriminate if a given gene expression pattern is cancer or normal. Deceiving this pretrained discriminator means our method is capable of generating very normal-like gene expression data. The second part of the challenge is to address whether generated normal is similar to true reverse form of the input cancer data. We used, cycle-consistent adversarial networks to approach our challenges, since this network is capable of translating one domain to the other while maintaining original domain's feature and at the same time adding the new domain's feature. We evaluated that, if we put cancer data into a cycle-consistent adversarial network, it could retain most of the information from the input (cancer) and at the same time change the data into normal. We also evaluated if this generated gene expression of normal tissue would be the biological reverse form of the gene expression of cancer used as an input.