• Title/Summary/Keyword: Resource Search

Search Result 412, Processing Time 0.026 seconds

A Comprehensive Cash Management Model for Construction Projects Using Ant Colony Optimization

  • Mohamed Abdel-Raheem;Maged E. Georgy;Moheeb Ibrahim
    • International conference on construction engineering and project management
    • /
    • 2013.01a
    • /
    • pp.243-251
    • /
    • 2013
  • Cash management is a major concern for all contractors in the construction industry. It is arguable that cash is the most critical resource of all. A contractor needs to secure sufficient funds to navigate the project to the end, while keeping an eye on maximizing profits along the way. Past research attempted to address such topic via developing models to tackle the time-cost tradeoff problem, cash flow forecasting, and cash flow management. Yet, little was done to integrate the three aspects of cash management together. This paper, as such, presents a comprehensive model that integrates the time-cost tradeoff problem, cash flow management, and cash flow forecasting. First, the model determines the project optimal completion time by considering the different alternative construction methods available for executing project activities. Second, it investigates different funding alternatives and proposes a project-level cash management plan. Two funding alternatives are considered; they are borrowing and company own financing. The model was built as a combinatorial optimization model that utilizes ant colony search capabilities. The model also utilizes Microsoft Project software and spreadsheets to maintain an environment that incorporates activities, their durations, and other project data, in order to estimate project completion time and cost. Ant Colony Optimization algorithm was coded as a Macro program using VBA. Finally, an example project was used to test the developed model, where it acted reliably in maximizing the contractor's profit in the test project.

  • PDF

Trends in Chinese Clinical Research on Herbal Medicine Treatment in Adolescent Polycystic Ovary Syndrome - Focusing on Randomized Controlled Clinical Trials - (청소년 다낭성 난소증후군 한약치료에 대한 중의학 임상연구 동향 -무작위 대조군 임상연구를 중심으로-)

  • Kim Hyo Eun;Jang Su Bi;Kim Ki Bong;Cheon Jin Hong
    • The Journal of Pediatrics of Korean Medicine
    • /
    • v.38 no.2
    • /
    • pp.53-67
    • /
    • 2024
  • Objective This study aimed to assess the trend of randomized clinical trials conducted in China involving oral herbal medicine for treating adolescent polycystic ovary syndrome (PCOS). Methods We used the China National Knowledge Infrastructure as our primary resource and conducted a search using keywords such as "PCOS", "多囊卵巢" and "多囊卵巢综合征". We identified and analyzed seven RCTs. Results 1. The group receiving herbal medicine treatment demonstrated significant improvements in total efficiency, sex hormone levels, and ultrasound-measurable values compared to the control group. 2. Epimedii Herba (淫羊藿), Alviae Miltiorrhizae Radix (丹參), and Angelicae Gigantis et Acutilobae Radix (當歸) were among the most used herbs in Traditional Chinese medicine decoctions for treating PCOS. Conclusions The findings suggest that oral herbal medicine is an effective treatment for patients with PCOS. This study provides a foundation for future research on the use of oral herbal medicine in PCOS treatment.

Leveraging Sports Leadership Principles for Employee Leadership Development

  • Jae-Hyung LEE
    • The Journal of Industrial Distribution & Business
    • /
    • v.15 no.4
    • /
    • pp.19-26
    • /
    • 2024
  • Purpose: The present research encircled on a systematic view of leadership in sports, an area that can be used to boost the skilling of employees. Four specific managerial development tools have been formulated during this research based on relevant materials studied in the previous section. Research design, data and methodology: This research used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) standards to systematically search for, screen, and synthesize relevant past research on using sports leadership principles for team member development. Results: The findings in this research offer four staff leadership development program ideas that are unique and beneficial for firms looking to foster the development of strong leaders. By deploying sport-based principles and methodology, these approaches can solve the limitations of conventional leadership development programs. This will demonstrate how each plan can help HR managers develop the appropriate strategies for their companies. Conclusions: In sum, this research suggests that by incorporating time-honored principles of sports leadership, these models will provide HR managers with an excellent arsenal of tools for developing a generation of leaders endowed with the skills, mindset, and resilience required to ensure the organization's prosperity under the most adverse conditions.

Taxonomic System of Sharks (Chondrichthyes: Elasmobranchii) in Korean Waters (한국 해역의 상어류와 분류체계)

  • Jae-Goo Kim;Youn Choi
    • Korean Journal of Ichthyology
    • /
    • v.36 no.1
    • /
    • pp.84-93
    • /
    • 2024
  • The sharks identified in the coastal waters of Korea are known to date to 9 Orders, 21 Families, 32 Genera and 47 Species. Therefore, recent studies and records of shark appearance in Korean waters were reviewed and organized. As a result, Halaelurus buergeri was separated from the Family Scyliorhinidae into the Family Pentanchidae based on the supraorbital crest absent on cranium above eyes. Accordingly, compared to the previous study, Family Pentanchidae, Genus Hexanchus, and 2 Species Hexanchus griseus and the Alopias superciliosus were added, resulting in a total of 49 species of sharks in 9 Orders, 22 Families, and 33 Genera in coastal waters of Korea. A list of these species, a search table, and the history of scientific name changes are provided, and proposed a new Korean name of 'Bul-beom-sang-eo-gwa' of the Family Pentanchidae.

Efficient and Privacy-Preserving Near-Duplicate Detection in Cloud Computing (클라우드 환경에서 검색 효율성 개선과 프라이버시를 보장하는 유사 중복 검출 기법)

  • Hahn, Changhee;Shin, Hyung June;Hur, Junbeom
    • Journal of KIISE
    • /
    • v.44 no.10
    • /
    • pp.1112-1123
    • /
    • 2017
  • As content providers further offload content-centric services to the cloud, data retrieval over the cloud typically results in many redundant items because there is a prevalent near-duplication of content on the Internet. Simply fetching all data from the cloud severely degrades efficiency in terms of resource utilization and bandwidth, and data can be encrypted by multiple content providers under different keys to preserve privacy. Thus, locating near-duplicate data in a privacy-preserving way is highly dependent on the ability to deduplicate redundant search results and returns best matches without decrypting data. To this end, we propose an efficient near-duplicate detection scheme for encrypted data in the cloud. Our scheme has the following benefits. First, a single query is enough to locate near-duplicate data even if they are encrypted under different keys of multiple content providers. Second, storage, computation and communication costs are alleviated compared to existing schemes, while achieving the same level of search accuracy. Third, scalability is significantly improved as a result of a novel and efficient two-round detection to locate near-duplicate candidates over large quantities of data in the cloud. An experimental analysis with real-world data demonstrates the applicability of the proposed scheme to a practical cloud system. Last, the proposed scheme is an average of 70.6% faster than an existing scheme.

The Optimum Conditions for Screening of Salt Resistant Lines Through Embryo Culture in Panax ginseng C.A. Meyer (인삼 염류내성 계통의 선발을 위한 배배양 배지조건)

  • Yang, Deok-Chun;Lee, Eun-Kyung;Kwon, Woo-Saeng
    • Korean Journal of Medicinal Crop Science
    • /
    • v.11 no.2
    • /
    • pp.161-166
    • /
    • 2003
  • Korean ginseng(Panax gmseng C.A. Meyer) is very difficult to obtain stable production of qualified ginseng roots because of variable stresses in soil environments. In environment stresses, soil condition is the most important factor, among which nutrients, especially inorganic materials such as N, P, K, Ca, Mg, Fe, etc., influence greatly on the ginseng growth. However, present ginseng field soils in Korea contain so much amount of such inorganic materials that a variety of remarkable disorders were noted in many ginseng plantations, resulting in decrease of qualitative ginseng production. Therefore, it is required to search for genetic resources and genes tolerant to salt stress for the development of ginseng cultivars. Selection of stress-tolerant ginseng lines in fields is very difficult because it is almost impossible to control properly the environmental conditions of soil. On the contrary, it can be studied with ease to search for stress-tolerant ginseng lines through in vitro culture because of easy manipulation of stress conditions. Murashige & Skoog(MS) media with 2.5 folds of $KNO_3,\;NH_4NO_3,\;MgSO_4\;7H_2O,\;KH_2PO_4,\;and\;CaCl_2\;2H_2O$ was established for the selection of ginseng lines tolerant to salt stress under the embryo culture.

Application model research on visualizing anti-inflammation effects by using the virtual cell (가상세포를 활용한 항염증 효능 응용모델 연구)

  • Kim, Chul;Yea, Sang-Jun;Kim, Jin-Hyun;Kim, Sang-Kyun;Jang, Hyun-Chul;Kim, An-Na;Nam, Ky-Youb;Song, Mi-Young
    • Herbal Formula Science
    • /
    • v.18 no.2
    • /
    • pp.227-239
    • /
    • 2010
  • Objective : The purpose of this study was to develop the simulator which can analyze the anti-inflammatory effects of herbs based on e-cell, or the virtual cell. Method : We have ensured the medical herbs and its active compounds by investigating the oriental medicine records and NBCI(Biomedicine database). Also we have developed the web-based search system for confirming database related to anti-inflammation. We have researched the cell signal pathway related with inflammatory response control and established the mathematical model of herb interaction on selected signal pathway in e-cell. Finally we have developed the prototype which can confirm the result of this model visibly. Results : We constructed the database of 62 cases of anti-inflammatory active compounds in 61 cases of medical herbs which have been known anti-inflammation effects in the paper, 16 cases of inflammatory factors, 10 cases of signal pathways related with inflammatory response and 6,834 cases of URL(Uniform Resource Locator) of referenced papers. And we embodied the web-based research system, which can research this database. User can search basic and detailed information of medical plants related with anti-inflammatory by using information system. And user can acquire information on an active compounds, a signal pathway and a link URL of related paper. Among investigated ten pathways, we selected NF-${\kappa}B$, which plays important role in activation of immune system, and we searched the mechanisms of actions of proteins which could be components of this pathway. We reduced total network into IKK-$I{\kappa}B$ - NF-${\kappa}B$, and completed mathematic modeling by using ordinary differential equations and response variables of $I{\kappa}B-NF-{\kappa}B$ signaling model network which is suggested by Baltimore Group. We designed OED(Ordinary Differential Equation) for response of IKK, $I{\kappa}B$, $NF-{\kappa}B$ in e-cell's cytoplasm and nucleus, and measured whether an active compound of medicinal plants which is inputted by an user would have a anti-inflammation effects in obedience to change in concentration over time. The proposed model was verified by using experimental results of the papers which are listed on NCBI.

Design of Compound Knowledge Repository for Recommendation System (추천시스템을 위한 복합지식저장소 설계)

  • Han, Jung-Soo;Kim, Gui-Jung
    • Journal of Digital Convergence
    • /
    • v.10 no.11
    • /
    • pp.427-432
    • /
    • 2012
  • The article herein suggested a compound repository and a descriptive method to develop a compound knowledge process. A data target saved in a compound knowledge repository suggested in this article includes all compound knowledge meta data and digital resources, which can be divided into the three following factors according to the purpose: user roles, functional elements, and service ranges. The three factors are basic components to describe abstract models of repository. In this article, meta data of compound knowledge are defined by being classified into the two factors. A component stands for the property about a main agent, activity unit or resource that use and create knowledge, and a context presents the context in which knowledge object are included. An agent of the compound knowledge process performs classification, registration, and pattern information management of composite knowledge, and serves as data flow and processing between compound knowledge repository and user. The agent of the compound knowledge process consists of the following functions: warning to inform data search and extraction, data collection and output for data exchange in an distributed environment, storage and registration for data, request and transmission to call for physical material wanted after search of meta data. In this article, the construction of a compound knowledge repository for recommendation system to be developed can serve a role to enhance learning productivity through real-time visualization of timely knowledge by presenting well-put various contents to users in the field of industry to occur work and learning at the same time.

The study on the policy of systematical management of the records collected from abroad (해외소재 한국학관련 역사기록의 정보화 방안 연구)

  • Chung, Hye-Kyung;Kim, Sung-Sik
    • The Korean Journal of Archival Studies
    • /
    • no.1
    • /
    • pp.137-188
    • /
    • 2000
  • Korea was highly successful in maintaining a strong tradition of record preservation. However, Japanese imperialism and the Korean war over this century has seen a huge quantity of these once plentiful records either destroyed or relocated overseas. Many of Korea records remain in the custody of foreign archival institutions. Additionally, many records of foreign states concerned with korean affairs, for example, records of the Department of state, in the U.S.A., are of great relevance to Korean modern history. These records which exist in foreign countries are a necessary and invaluable resource in the advancement of Korea studies. After the 1980s, as research interest in Korean modern history increased gradually, much historical material related to Korea was extensively introduced, removed, collected from the U.S.A., Japan, Russia and China etc. by the efforts of pioneering scholars and institutions. Several attempts at collating and publishing this material have been made. Despite this encouraging result, individual scholars and institutions's efforts face problems in relation to removal of records. Firstly, it is repeated nonproductively to remove and collect the same records, for we didn't establish a comprehensive information system, through which the condition of foreign record removal and management is able to be administrated. Secondly, there is no system for arrangement, preservation, use of removed records. For example, finding aids, such as inventory, register, description, isn't prepared for user. A user may usually not understand an accurate context of their creation, preservation removal. Thirdly, almost institution has arranged the removed records among other materials and books. Each institution has a different classification criteria, too. These conditions seem to make a difficulty in national management. This study investigated how the materials for Korea history which has been removed from foreign countries should be managed for effective preservation and use. For these purpose, we investigated the present conditions of removal and management of these materials. Also, we investigated examples of the foreign state, U.S.A. and Japan to have a idea for removal and management policy. Then, This study propose a establishment of information network system as management policy. To administrate removing and managing records effectively, an idea that records belong to the public should be accepted commonly. The policy for management of the record is followings. Firstly, unification of classification is necessary. The records which were removed from foreign countries had better to be classified according to their origins of states and institutions. Secondly, Finding aids should be prepared for user. There are many accession aids such as catalog, register, inventory for user in archives. This will be a efficient method for management. When a record is removed, a card for description of contents must be composed. Thirdly, a digital input and network system establishment is necessary. It will help to manage a condition of removed records. A digital input and management system establishment is not just a project of digitalizing records. At present, various finding aids need to be introduced to make a database for records and archives. An search using only 'search engine' may make a difficulty in finding materials because such method is apt to have too much or little result. So, classification, arrangement, description, response-service should be integrated in these system. The recent technical advancement give a opportunity to realize this idea. Above all, these procedure should be archival process.

Systematic Literature Review for HRD in Korea Franchise Business (국내 프랜차이즈 사업에서의 인적자원개발에 관한 체계적 문헌 고찰)

  • KIM, Eunsung;LEE, Sang-Seub
    • The Korean Journal of Franchise Management
    • /
    • v.10 no.2
    • /
    • pp.33-47
    • /
    • 2019
  • Purpose - The purpose of this study is to classify and analyze existing studies from various angles through systematic literature review of how human resources development has been researched in the domestic franchise business. These studies are intended to suggest the direction in which human resource development research should be conducted in the future in the franchise business. Research design, data, and methodology - This study is based on systematic literature review methodology. It has gone through the process of subject language setting, literature search routing, search term selection, literature selection, literature classification and literature analysis. The systematic literature review identified 59 peer-reviewed dissertations and scientific journal publications on the subject of HRD in Korea franchise business. Result - This study analyzed by research methods, research industries, research population and dependent variable using the systematic review process. The literature studied in the 2000s mainly led to research on education and training of franchise employees in beauty franchise business. In the literature studied since 2010, human resources development was mainly studied in the supervisor in the restaurant franchise business, and in the study of competence rather than education and training. According to the research methods, statistical methods were mostly relatively simple, such as t-test or one-way distribution analysis until the 2000s, and after 2010, in-depth and structural studies using multiple return analysis, structural method analysis, path analysis, multi-dimensional scale analysis, AHP, etc were conducted. When classified by study dependant, early research until the 2000s focused on the study of education and training, which is an independent variable, on the satisfaction of education programs, job satisfaction, and immersion. On the other hand, studies conducted since 2010 have produced more complex results using various medium variants, and those related to management performance and relationship performance have been mainly studied, rather than the satisfaction of the education itself. Conclusions - While the domestic franchise business is expanding in terms of quantity, such as the number of franchises and franchises, the development in terms of quality for the joint growth of franchises and franchisees is still lacking. In order for the franchisee to continue to grow with each other, the franchisee must identify and develop their current performance or expected capabilities through capacity modeling at various targets and levels.