• Title/Summary/Keyword: Critical technology elements

Search Result 222, Processing Time 0.031 seconds

Application of data fusion modeling for the prediction of auxin response elements in Zea mays for food security purposes

  • Nesrine Sghaier;Rayda Ben Ayed;Ahmed Rebai
    • Genomics & Informatics
    • /
    • v.20 no.4
    • /
    • pp.45.1-45.7
    • /
    • 2022
  • Food security will be affected by climate change worldwide, particularly in the developing world, where the most important food products originate from plants. Plants are often exposed to environmental stresses that may affect their growth, development, yield, and food quality. Auxin is a hormone that plays a critical role in improving plants' tolerance of environmental conditions. Auxin controls the expression of many stress-responsive genes in plants by interacting with specific cis-regulatory elements called auxin-responsive elements (AuxREs). In this work, we performed an in silico prediction of AuxREs in promoters of five auxin-responsive genes in Zea mays. We applied a data fusion approach based on the combined use of Dempster-Shafer evidence theory and fuzzy sets. Auxin has a direct impact on cell membrane proteins. The short-term auxin response may be represented by the regulation of transmembrane gene expression. The detection of an AuxRE in the promoter of prolyl oligopeptidase (POP) in Z. mays and the 3-fold overexpression of this gene under auxin treatment for 30 min indicated the role of POP in maize auxin response. POP is regulated by auxin to perform stress adaptation. In addition, the detection of two AuxRE TGTCTC motifs in the upstream sequence of the bx1 gene suggests that bx1 can be regulated by auxin. Auxin may also be involved in the regulation of dehydration-responsive element-binding and some members of the protein kinase superfamily.

A Study on the Relationship between the Ante and Post Audit Companies Evaluation (감리업체 사전/사후 평가방안의 공학적 연계)

  • Sunwoo, Jong Sung
    • Journal of Information Technology Services
    • /
    • v.3 no.1
    • /
    • pp.117-126
    • /
    • 2004
  • In this study an evaluation method is proposed, with the strong relationship between the ante and post audit works evaluation. The ante evaluation does in general and systematic ways, with past audit results and proposals. The criteria-based evaluation is used for the audit activities and outputs. The critical success factors for the projects applies to the activities evaluation and product evaluation framework to the output. The ante and post evaluation have the cross evaluation items to be the whole and continuous one. Eighteen common evaluation items are derived, with their own evaluation elements in detail, which have only differences of the actually done and expectations between the ante and post. The proposed evaluation makes the ante and post one to be related with each other in a systematic and objective ways, to enhance the reliability of audit results and effectiveness of the audit.

Develop and Deliver Essential Information Literacy Programs

  • Eisenderg, Michael B.
    • Journal of the Korean Society for Library and Information Science
    • /
    • v.45 no.2
    • /
    • pp.5-21
    • /
    • 2011
  • There is an explosion of talk about crucial, new literacies for the 21st Century, for example critical thinking, problem-solving, media literacy, technology literacy, digital literacy, visual literacy. The other day, there was even an article about "gaming literacy!" How does one make sense of it all? The common factor in all these literacies is "information" - information seeking, information use, information processing, information presentation, and information evaluation. And, these "information" elements come together in information literacy: the ability to engage in effective and efficient information problem-solving. Information literacy is the overarching and unifying literacy, and all libraries have a unique and essential role to play in delivering meaningful information literacy programs to people of all ages. In this keynote paper and address, Professor and Dean Emeritus Mike Eisenberg will define the concept and structure of library-based information literacy programs and offer strategies for developing and implementing information literacy programs that are comprehensive(reaching all users), predictable (consistent over time), and accountable(measured and reported).

Neutral Beam Evolution in the KSTAR NBI Test Stand

  • In, S.R.;Shim, H.J.
    • Journal of Korean Vacuum Science & Technology
    • /
    • v.7 no.1
    • /
    • pp.1-7
    • /
    • 2003
  • The pressure distributions in the test stand built for developing KSTAR NBI ion sources were obtained using a network system composed of conductance elements modeling the ion source, the neutralizer, and other beam line components. The allowable regime was defined on the coordinates of the gas supply rate to the ion source and the neutralizer, considering the proper conditions of the three critical parameters, the ion source pressure for good arc discharge, the pressure integral in the neutralizer for sufficient neutralization, and the chamber pressure for minimum neutral beam loss. The neutral beam evolution along the path from the ion source extraction grid to the calorimeter through the neutralizer, the bending magnet and the vacuum chamber was estimated for typical pressure distributions.

  • PDF

'Brine Management through brine mining of trace metals' for developing Secondary sources of nuclear fuel

  • T.L. Prasad
    • Nuclear Engineering and Technology
    • /
    • v.55 no.2
    • /
    • pp.674-680
    • /
    • 2023
  • The brine and seawater are important and largely untapped sources of critical trace metals and elements. The coupling of selective recovery of trace metals from seawater/brine with desalination plants gives an added advantage of energy credits to desalination plants and as well as reduce the cost of desalinated water. In this paper, status review on recovery of important trace metals and other alkali metals from seawater is presented. The potential of Indian desalination plants for recovery of trace metals, based on recovery ratio of 0.35 is also highlighted. Studies carried out by the process based on adsorption using Radiation Induced Grafted (RIG) polymeric adsorbents and then fractional elutions are presented. The fouling factors due to bio fouling and dirt fouling have been estimated for various locations of interest through field trails. The pay loader in the form of compact Contactor Assembly with minimum pressure drop, for loading specially designed radiation grafted sorbent in leaflet form has been briefed, as required for plant scale facility. The typical conceptual process design details of farm assembly of project CRUDE are described.

Behavioral Tendency Analysis towards E-Participation for Voting in Political Elections using Social Web

  • Hussain Saleem;Jamshed Butt;Altaf H. Nizamani;Amin Lalani;Fawwad Alam;Samina Saleem
    • International Journal of Computer Science & Network Security
    • /
    • v.24 no.2
    • /
    • pp.189-195
    • /
    • 2024
  • The issue "Exploring Social Media and Other Crucial Success Elements of Attitude towards Politics and Intention for Voting in Pakistan" is a huge study embracing more issues. The politics of Pakistan is basically the politics of semantic groups. Pakistan is a multilingual state more than six languages. There are 245 religious parties in Pakistan, as elaborated by the Daily Times research. The use of social media sites in Pakistan peaked to its maximum after announcement of election schedule by the Election Commission of Pakistan in March 22, 2013. Most of the political parties used it for the recent elections in Pakistan to promote their agenda and attract country's 80 million registered electors. This study was aiming to investigate the role of social media and other critical variables in the attitude towards politics and intention for voting.

Application Program Virtualization based on Desktop Virtualization (가상 데스크탑 기반에 응용프로그램 가상화)

  • Lim, Se-Jung;Kim, Gwang-Jun;Kang, Tae-Geun
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.5 no.6
    • /
    • pp.595-601
    • /
    • 2010
  • Desktop virtualization technology running on the local computing system in the process of resource depletion or degradation, such as upgrading the system to solve problems and manage critical information and systems must be protected. In addition, a virtualized environment by constructing a convenient stand-virtualized infrastructure and user space, and security from external attack or internal flaw or a problem, even if the service fails to respond quickly and should help to recover. In this paper, a comprehensive virtualization technology based on the client's desktop virtualization technology elements needed to find a local computing environment more comfortable and stable in the proposed new virtualization technologies.

Preliminary Study of Rapeseed Flour-based Wood Adhesives for Making Wood Flooring

  • Yang, In;Ahn, Sye-Hee;Choi, In-Gyu;Han, Gyu-Seong;Oh, Sei-Chang
    • Journal of the Korean Wood Science and Technology
    • /
    • v.39 no.5
    • /
    • pp.451-458
    • /
    • 2011
  • Adhesives derived from renewable resources allow wood panel producers to make lower cost alternatives to formaldehyde-based adhesive resins. Among them, adhesive components extracted from industrial by-products or wastes are the most important research fields in the efficient utilization of waste and cost reduction. In our study, the rapeseed flour, which is a by product from the production of biodiesel extracted from rapeseed, was introduced to develop alternative adhesives for the production of wood flooring. The rapeseed flour was hydrolyzed with 1% sodium hydroxide solution and PF prepolymers were prepared with 3-molar ratios, 1.8, 2.1 and 2.4. The linear fracture mechanics was introduced to evaluate the glue bond quality in wood flooring composed of fancy-veneered and plywood, and the formaldehyde emission and adhesive penetration were also investigated. The formaldehyde emissions of wood flooring met the requirement of the standard of $SE_0$ specified in the KS standard. The rapeseed flour adhesive penetrated sufficiently into the vessel elements and lumens in fancy veneer and plywood and gave strong bond quality to the wood flooring. The fracture mechanics was introduced to evaluate the adhesive joint between fancy veneer and plywood. The critical stress intensity factor ($K_{IC}$) of boliva overlayed wood flooring was increased with increasing molar ratio and this was the same tendency in oak overlayed wood flooring. From the results, the formulated adhesives were efficiently used to bond fancy veneer onto the plywood to make wood flooring and showed a potential to be used as a component of environmentally friendly adhesive resin systems for production of flooring.

Critical Conduction Mode Bridgeless PFC Converter Based on a Digital Control (디지털 제어 기반의 경계점모드 브릿지리스 PFC 컨버터)

  • Kim, Tae-Hun;Lee, Woo-Cheol
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.65 no.12
    • /
    • pp.2000-2007
    • /
    • 2016
  • Generally, in order to implement the CRM(Critical Conduction Mode), the analog controller is used rather than a digital controller because the control is simple and uses less power. However, according to the semiconductor technology development and various user needs, digital control system based on a DSP is on the rise. Therefore, in this paper, the CRM bridgeless PFC converter based on a digital control is proposed. It is necessary to detect the inductor current when it reaches zero and peak value, for calculating the on time and off time by using the current information. However, in this paper, the on-time and off-time are calculated by using the proposed algorithm without any current information. If the switching-times are calculated through the steady-state analysis of the converter, they do not reflect transient status such as starting-up. Therefore, the calculated frequency is out of range, and the transient current is generated. In order to solve these problems, limitation method of the on-time and off-time is used, and the limitation values are varied according to the voltage reference. In addition, in steady state, depending on the switching frequency, the inductance is varied because of the resonance between the inductor and the parasitic capacitance of the switching elements. In order to solve the problem, inductance are measured depending on the switching frequency. The measured inductance are used to calculate the switching time for preventing the transient current. Simulation and experimental results are presented to verify the proposed method.

IM (Interindustry-Macro) Model on the Construction Sector

  • KwangHyuk Im
    • International conference on construction engineering and project management
    • /
    • 2024.07a
    • /
    • pp.1177-1186
    • /
    • 2024
  • The construction sector, in relation to human's residential issues, serves as the cornerstone of societal systems, economic security, the national economy, individuals and households, economic activity, national safety, management, business, and government. Also, the essential sectors, such as electric power generation, transmission, and distribution, and natural gas distribution, water, sewage, and stormwater systems, and so on, form the heart of our social system. These essential sectors of our society provide core goods and services for continuous public health services, construction services, government operations, multiple businesses, and national and economic safety. Therefore, those systems are the cornerstone of our society, and strengthening their security and resilience is of utmost significance. However, the existing framework for assessing and evaluating the problems with regard to those systems lacks efficient methods and mechanisms. The main objective of this research is to define correlations between different infrastructures within an economic system to strengthen the resilience and security of the construction sector. This study will be conducted to identify physical relationships between different industries within an economic system and to define deterministic relationships through the values of interconnectedness and interdependency. In addition, this research attempts to complete a probabilistic estimation of economic impacts using historical economic data and to develop an assessment model that can be used in the future to measure economic impact in terms of the construction sector. In case of loss in the construction sector due to exogenous factors, identifying which critical infrastructures or sectors will be the most affected will help minimize the risks and property damages. Furthermore, improving the resiliency of the construction sector will help speed recovery from or resistance to unpredictable external elements.