In this study, we propose an Energy-Aware Web service to optimize energy efficiency using the characteristics of the system load. Currently, the service scale of data center is growing and the range of its applications is enlarged, causing interest in energy conservation. In particular, the web service has the largest proportion among various services of the data center. We propose a new energy saving method for web services guaranteeing the performance requirements of the services. The proposed method is optimized through the differences of energy-consumption rate over the system load. Performance evaluation has been performed under conditions similar to the actual service. The results indicated that the maximum energy reduction by the proposed method is up to 30% better than the existing methods.
This article aims to inquire into the decision making system and the sources of the original documents made by means of it in Imperial Japan, the colonial Chosun, GHQ, and the occupied Japan in terms of the post-war treatments of compensation on the Japanese colonial rules. It deals with them from 1910 to 1952 in the perspective of history and archivistics. This article attempts to establish the foundation on which the perception of the documents made in the Imperial Japan, its colony, and the occupied territory would be widened by placing the colonial rules and the compensation on them into a continuous line. The records of Japan's forced occupation of Korea during 1910-1945, and the original records documenting the decision making process of post-war compensation under GHQ, 1945-1952, have been dispersed in Korea, Japan and the United States. This dispersed preservation was mainly due to the complicated decision-making process among Governor-General of Chosun, the Japanese Imperial government, and the GHQ. It was the top-down styled, dual decision making system, in which the critical policies, personnel, and budget had been decided in Imperial homeland, while their implementations were made in the colonies. As a result, the records documenting the whole process of domination have been preserved dispersedly in Japan and its colonies. In particular, the accounts of not yet paid Korean workers that was forced to mobilize in Japan's colonial periods, which is emerging as the diplomatic conflict between Korea and Japan, had been dealt in the decrees of the Japanese government and policy-making of GHQ. It has already been changed to the problem as 'economic cooperation' from the 'debt'. Also, the critical records for post-war compensation were preserved dispersedly in the United States and Japan under the top-down decision making process of GHQ-Japan. Therefore, the dispersed records of 1910-1952 about the colonial rules by the Imperial Japan and the post-war compensation on them must be re-investigated for the adequate documentation in the context of time and space.
Tstomu Ishidoya (1891-1958), a Japanese taxonomist and pharmacognosist, conducted his plant explorations on the Korean peninsula from 1911 to 1943. Especially from 1912 to 1923 Ishidoya, as a governmentemployee of Chosen Governor-General collected numerous specimens of woody plants which were later studied by T. Nakai. Collection numbers totalling 6,487 (= collections) were recorded according to Nakai's studies, while only 1,350 speciemens are confirmed to be preserved now in three Japanese herbaria (Tokyo Universtiy, Kyoto University and National Museum of Nature and Science). All collection sites were described by Nakai using romanized characters with Japanese pronunciation. For this study, one hundred seventy three locality names were reviewed using those of Ishidoya's specimens that are deposited at TI, KYO, and TNS; the database, Korean Biodiversity Information System (http://www.nature.go.kr), and the articles and literature of Nakai and Ishidoya. These are listed in the order of his collection dates.
The Journal of Korean Institute of Electromagnetic Engineering and Science
/
v.19
no.2
/
pp.161-167
/
2008
This paper describes the overview of spectrum requirement estimation recommended in ITU-R Rec. M.1390 and [IMT.METH] and its difference for the IMT mobile service, and a (IMT.METH) methodology is applied to the spectrum estimation of the recent IMT service. The traffic model and traffic calculation algorithm is briefly described for the carried traffic which is determined in terms of the offered traffic, system rapacity, and the criteria of quality of service. And the spectrum requirement demand which is required from year 2010 to year 2015 is calculated as an example for the IMT service which is recently operated and deployed in the current Korean market after obtaining the reasonable market data and the ITU market prediction data.
Kim, Dong-Kyu;Cho, Sung-Ho;Park, Seoung-Soo;Park, Yong-Woo;Yoo, Hui-Ryong;Nguyen, Tan-Tien;Kim, Sang-Bong
Journal of Mechanical Science and Technology
/
v.17
no.9
/
pp.1349-1357
/
2003
This paper deals with verification of the theoretical model for dynamic behavior of Pipeline Inspection Gauge (PIG) traveling through high pressure natural gas pipeline. The dynamic behavior of the PIG depends on the differential pressure across its body. This differential pressure is generated by injected gas flow behind the tail of the PIG and expelled gas flow in front of its nose. To analyze the dynamic behavior characteristics such as gas flow in pipeline, and the PIG position and velocity, not only the mathematical models are derived, but also the theoretical models must be certified by actual pigging experiment. But there is not any found results of research on the experimental certification for dynamic behavior of the PIG. The reason is why the fabrication of the PIG as well as, a field application are very difficult. In this research, the effectiveness of the introduced solution using the method of characteristics (MOC) was certified through field application. In-line inspection tool, 30" geometry PIG, was fabricated and actual pigging was carried out at the pipeline segment in Korea Gas Corporation (KOGAS) high pressure system, Incheon LT (LNG Terminal) -Namdong GS (Governor Station) line. Pigging is fulfilled successfully. Comparison of simulation results with experimental results show that the derived mathematical models and the proposed computational schemes are effective for predicting the position and velocity of the PIG with a given operational conditions of pipeline.
In order to understand the local council members' attitudes to the health policy, we conducted mail surveys using self-administered questionaire for 2 months(February and March. 1995). The study subjects were 2.312 local council members in Korea, but only about 11% among whom. 257 persons, responded to 2 times mail survey. This response rate revealed that the local council members was not interested in health care fields. The main results were as follows; The respondents thought that the economic and income development was most important among 15 regional policy agendas and the health care was the 5th or 7th important agenda. They. who had more health needs of and poor access to health care, tended to think that the health care was more important. They considered lobbying to and persuading the civil servants as the best method to tackle the local health care policy agenda. The respondents, who had poor access to health care facilities. tended to set the highest priority for the expansion of public and private health care resources. They expected that the election of local governor would activate the public health program more than thought that the program was implemented more actively than other region. The main opinion of respondents was that the central government had to take over planning and financing for the public health program, and the basic local government had to implment the program and budgeting. The majority of respondents agreed the private dominant medical care delivery system and nation-wide uniformed financing mechanism. Over 60% of them suggested that they were ready to suffer environmental pollution inducing health hazards for the purpose of regional economic and income development. About 75% of them favour the campaign for antismoking regardless of reducing local government's revenue from sale tax.
With the introduction of 40 hour working week system, more households enjoy picnics on weekends. More gas accidents take place on Saturdays and on Sundays than any other days of week. As of October, 2004 casualties resulted from butane can accidents increased 1.5 times compared to the same period of the previous year. In this study, the influence of explosion over-pressure caused by the rupture of butane can thrown away after use was calculated by using the Hopkinson's Scaling Law and the accident damage was estimated by applying the influence on the adjacent structures and people into the Probit model. As a result of the damage estimation conducted by using the Probit model, both the damage possibility of explosion over-pressure to structures 50 meters away and that of over-pressure to people 10 meters away showed nothing. The explosion efficiency used was 100 percent. As a result of this, the actual damage influenced by the rupture of butane can would be lower than the value calculated in this study and expected to be safer.
Basuki Tjahaja Purnama, Jakarta's Ex-Governor, lost his re-election bid in 2017 and then was jailed on a charge of blasphemy. After his defeat, the rhetorics of Indonesian politics was divided into two opposing sides: anti-Communism and 'pribumi' of the radical Islamic movements and Pancasila of the Jokowi administration. Although Islamic political parties are now preoccupied with their own coalitional politics and survivals, rather than solidarity of Islamic forces, the rising Islamic sentiments confirmed by the Jakarta election indicate that religion will continue to be a key variable in Indonesian politics. Meanwhile, ex-military generals who declared themselves as candidates in the 2018 regional election and the 2019 presidential election, as well as a few measures used by the Jokowi administration against extra-parliamentary political opponents, remind us of Suharto's New Order. Steady growth continues in economy. The raise of minimum wage enlarged middle classes and led to a decline of the poverty rate. Jokowi's commitment to building infrastructure has made tangible achievements. Under these circumstances, enhanced cooperation between Indonesia and South Korea is laudable, though any such cooperation must fully incorporate local sociocultural contexts, such as the strengthened halal certification system.
Since the beginning of the second Sino-Japanese war in 1937, the entire Korean Peninsula has entered a full-fledged wartime system. Japan enacted laws that strongly regulate the distribution of various resources for war, and the same was implemented in Joseon. In particular, as iron, copper, lead, tin, and aluminum were mobilized as raw materials for military supplies such as weapons, private distribution decreased significantly, which had a great impact on the construction industry. As the use of metal such as steel as building materials requires permission from the provincial governor, it has become difficult to supply and demand except for some military facilities. In addition, the Japanese Ministry of Commerce and Industry encouraged research and development and manufacturing to promote the so-called "substitute goods industry" to make up for the shortage of supplies. Products with improved performance through chemical treatment by injecting only a small amount of the same raw material than before or using alternative raw materials have been developed. It was intended to overcome the limitations of lack of raw materials through the chemical industry. In terms of building materials, various substitutes were produced due to the incorporation of petrochemicals and the use of synthetic resins. This trend continued even after the end of the war and served as one of the backgrounds for R&D and production of new materials without returning to the "substitute goods."
The purpose of this study is to examine process and organization of local government-managed construction by reviewing official documents and materials in regard to the official residences and castles officially constructed in Dongnae in the 19c Chosun Dynasty. Results of this study can be described as follows. 1) The construction of official residences requires exchanges of official documents among upper and lower governmental agencies concerned. Previously prepared for some 1 or 2 months, the construction was proceeded through proceeded from Paok to Gaegi, Ipju, Sangryang, Gaeok and to Iptaek. Such construction was carried out independently and concurrently Gijang and Yangsan neighboring Dongnae provided cooperation by way of supplying labor and timbers. 2) Dongnaebu castle was constructed under local autonomy system, like other government-oriented works, as governor of Dongnae became responsible for defending such establishment in 1739. The castle was built up in 1731 as an establishment with 6 gated and 15 forts. Directly controlled by governor of Dongnae, the castle continued to be partially repaired until the 19th century. Under the regime of Daewongun, the castle was enlarged and extended for military strengthening. Besides the gate having double-gated structure for the outside wall, the other five gates came to have bastions and 30 forts were additionally established, dramatically changing the structure of the castle as whole. 3) Government-managed construction was often implemented by an organization whose members included local government officials, lower administrative agencies and local influential persons. The construction of official residences was implemented by Gamyeokdogam which was headed by Jwasu of Hyangcheong. In the construction, chief of military officials became supervisor, who was responsibly supported by Saekri. The construction of castled were divided into several works, for example, establishments of fortress, tower gate and quarrying stone were implemented by the organization of Paejang, Gamkwan and Saekri. As a military official, Gamkwan supervised the construction. Saekri was in charge of related internal affairs. Paejang was an technical expert leading several workers. The construction of castles in 1870 were organized as a general rule having particularity of social conditions on Dongnae.
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