• Title/Summary/Keyword: direct products

Search Result 943, Processing Time 0.036 seconds

Fisheries Resources -A Brief Introduction of the Republic of Senegal

  • Mbengue, Modou
    • Journal of Marine Bioscience and Biotechnology
    • /
    • v.3 no.1
    • /
    • pp.38-41
    • /
    • 2008
  • Fish is a major source of protein for the Senegalese population. Fishing plays a dominant role in the Government's policy towards generating employment. It currently generates about 100,000 direct jobs (fishermen) for nationals, of which more than 90% are in small-scale fishing. The fishing industry also contributes to Government revenue through different agreements. In addition to associated dues, fishing agreements imply a series of economic, trade and technical counterparts. Under the latest fishing agreement concluded by Senegal and the European Union (1997-2001), direct financial compensation amounts to about CFAF 32 billion. Despite its economic and social importance, the sector has to face serious disequilibria both in resource exploitation and market supply: the coastal demersal (deep lying fish) stocks with high market value (mostly exported) are fully and even over-exploited, with a serious risk of local market supply shortages looming ahead as the fishing effort shifts from locally consumed species to export-oriented ones.

  • PDF

NEUTRON CROSS SECTION DATA LIBRARY FOR PD-105, AG-109, XE-131 AND CS-133

  • LEE Y. D.;CHANG J. H.
    • Nuclear Engineering and Technology
    • /
    • v.37 no.1
    • /
    • pp.101-108
    • /
    • 2005
  • The neutron induced nuclear cross-section data for Pd-105, Ag-109, Xe-131, and Cs-133 were calculated and evaluated from an unresolved energy to 20 MeV. The energy dependent optical model potential parameters were extracted based on recent experimental data and applied up to 20 MeV. A spherical optical model and a statistical model for the equilibrium energy, and a multistep direct and a multistep compound model for the pre-equilibrium energy were used in the calculation. The direct capture model was recently introduced for fast neutron capture. The theoretically calculated cross-sections were compared with the experimental data and the evaluated files. The total and capture cross-sections calculated using the model were in good agreement with the reference experimental data. The evaluated cross-section results were compiled in ENDF-6 format and merged with the resonance component, already adopted in the ENDF/B-VI release 8. New data library files covering from thermal to 20 MeV were created. They are at the preliminary stage of an ENDF/B- VII release.

Neutron Cross Section Evaluation on Pr-141, Nd-143, Nd-145, Sm-147 and Sm-149

  • Lee, Y. D.;J. H. Chang
    • Nuclear Engineering and Technology
    • /
    • v.34 no.4
    • /
    • pp.370-381
    • /
    • 2002
  • The neutron induced nuclear data for Pr-141, Nd-143, Nd-145, Sm-147 and Sm-149 were calculated and evaluated from 10 keV to 20 MeV. The energy dependent optical model potential parameters were extracted based on the recent experimental data and applied up to 20 MeV. The s-wave strength function was calculated. Spherical optical model , statistical model in equilibrium energy, multistep direct and multistep compound model in pre-equilibrium energy and direct capture model were introduced in Empire calculation. The theoretically calculated cross sections were compared with the experimental data and the evaluated files. The model calculated total and capture cross sections were in good agreement with the reference experimental data. The capture cross sections in pre-equilibrium were enhanced in recent released Empire version. The evaluated cross section results were compiled to ENDF-6 format and will improve the ENDF/B-Vl.

REVERSIBLE AND PSEUDO-REVERSIBLE RINGS

  • Huang, Juan;Jin, Hai-lan;Lee, Yang;Piao, Zhelin
    • Bulletin of the Korean Mathematical Society
    • /
    • v.56 no.5
    • /
    • pp.1257-1272
    • /
    • 2019
  • This article concerns the structure of idempotents in reversible and pseudo-reversible rings in relation with various sorts of ring extensions. It is known that a ring R is reversible if and only if $ab{\in}I(R)$ for $a,b{\in}R$ implies ab = ba; and a ring R shall be said to be pseudoreversible if $0{\neq}ab{\in}I(R)$ for $a,b{\in}R$ implies ab = ba, where I(R) is the set of all idempotents in R. Pseudo-reversible is seated between reversible and quasi-reversible. It is proved that the reversibility, pseudoreversibility, and quasi-reversibility are equivalent in Dorroh extensions and direct products. Dorroh extensions are also used to construct several sorts of rings which are necessary in the process.

Distinguishing Online Opinion Leaders: The Mediating Effect of Consumer Innovativeness and Online Opinion Leadership for Values and New Product Adoption Behavior

  • Lee, Yukyung;Park, Minjung;Im, Subin
    • Asia Marketing Journal
    • /
    • v.19 no.2
    • /
    • pp.1-24
    • /
    • 2017
  • This article empirically examines the relationship between values, consumer innovativeness, online opinion leadership, and new product adoption behavior utilizing wearable technology as the overall unit of analysis. The authors analyze data collected from SNS users who possess one or more wearable devices using a structural equation modeling approach to examine the direct effects. Moreover, a bootstrapping approach is adopted to explore the indirect effects between the constructs. The results indicate that consumers who value stimulation and hedonism are more inclined to possess stronger consumer innovativeness. Consumer innovativeness also positively influences online opinion leadership, ultimately leading to the faster adoption of new products. The mediating effect of consumer innovativeness between the value stimulation and online opinion leadership is also confirmed. In addition, although consumer innovativeness has no direct effect on new product adoption behavior, it does have an indirect, mediating effect through online opinion leadership.

Softening-hardening Mechanisms in the Direct Hot-extrusion of Aluminium Compacts

  • Zubizarreta, C.;Arribas, I.;Gimenez, S.;Iturriza, I.
    • Proceedings of the Korean Powder Metallurgy Institute Conference
    • /
    • 2006.09b
    • /
    • pp.718-719
    • /
    • 2006
  • Two different commercial aluminium powder grades have been densified by direct hot extrusion. The extrusion temperature was $425^{\circ}C$, with an extrusion ratio of 1:16. Prior to extrusion, some green compacts were pre-sintered ($500^{\circ}C$). The evolution of the extrusion load during the process and the hardness of the final products have been investigated. Additionally, microstructural characterization by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Electron Backscattered Diffraction (EBSD) was carried out. The obtained results evidence grain refinement. Additionally, inter-metallic precipitation, dynamic recovery and geometric dynamic recrystallization take place depending on some process variables, powder composition, heat treatment, strain $\ldots$

  • PDF

Direct Share: Photo Management System Based on Round-robin Concept-driven User Preference Feedback

  • Song, Tae-Houn;Jeong, Soon-Mook;Kim, Hyung-Min;Kwon, Key-Ho;Jeon, Jae-Wook
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.5 no.7
    • /
    • pp.1346-1367
    • /
    • 2011
  • As the size of camera modules is decreasing and as the computing performance of portable devices is improving, taking photos has become a part of daily life. However, existing photo management programs and products that manage such photos still require extensive user effort to facilitate the sharing and browsing of images. It is especially difficult for novice users to manage and share photos. In this paper, we develop a round-robin concept-driven user preference feedback mechanism for achieving direct photo sharing, instant display, and easy management using optimized user controls and user preference-driven classification. Compared with commercial photo management systems, our proposed solution provides new features: optimized user controls, direct sharing and instant display, and user preference feedback driven classification. These new features boost the round-robin concept-driven user preference feedback. This paper proposes a photo finder that automatically searches for photos in storage spaces or cameras. The proposed photo finder relies on user preference feedback to share photos by leveraging user preferences, and the round-robin connection transmits photos to the family's digital photo frame or web album by arbiter. The proposed method saves time and spares users the effort required for photo management. Moreover, this method does not merely direct photo sharing and simple photo management, but it also increases the satisfaction level of users viewing the photos.

Analysis of Vogue Magazine on Forms of Image Expression and Utilization of Model Poses in Fashion Photos (패션매거진 Vogue의 패션사진에 나타난 이미지 표현형식 및 모델 포즈의 활용유형 분석)

  • Kim, Young-Min;Kim, Young-Sam
    • Journal of the Korean Society of Costume
    • /
    • v.66 no.4
    • /
    • pp.111-127
    • /
    • 2016
  • The study aims to examine the forms of 'image expression' and utilization of model poses in fashion photos, and to delve into the characteristics and the intents that make certain model poses effective in expressing an image. The study used the fashion photos in the fashion magazine, Vogue, to analyze the different model poses used to express different images. The results are as follows. First, image expression forms in fashion photos were categorized into 'direct product suggestion expression form', 'sensual image expression form', 'sexual image expression form', 'story telling expression form', 'everyday situation expression form', and 'fantastic image expression form'. The different utilization types of model poses were categorized into 'type utilizing intangible elements', 'type utilizing complicated elements', 'type utilizing living organisms', 'type utilizing props', 'type utilizing clothes', 'type utilizing location', 'type utilizing accessories', and 'type utilizing products'. Second, the most common expression form for fashion photos used in advertisements was the 'direct product suggestion expression form', which was followed by the sensual image expression form. The most popular form used in the editorial fashion photos was the direct suggestion product expression form, which was followed by the story telling expression form. Third, the most common model pose type for direct product suggestion form was the 'type utilizing product'. Fourth, 'direct product suggestion expression form' was mostly used in editorial fashion photos. The most common utilization types of model poses were 'type utilizing clothes', 'type utilizing props', and 'type utilizing place'.

Scale-Up of Polymerization Process of Biodegradable Polymer Poly(lactic acid) Synthesis Using Direct Polycondensation Method

  • Pivsa-Art, Sommai;Niamlang, Sumonman;Pivsa-Art, Weraporn;Santipatee, Nutchapon;Wongborh, Tossamon;Pavasupree, Sorapong;Ishimoto, Kiyoaki;Ohara, Hitomi
    • International Journal of Advanced Culture Technology
    • /
    • v.3 no.2
    • /
    • pp.100-109
    • /
    • 2015
  • Environmental problems from petroleum-based plastic wastes have been rapidly increasing in recent years. The alternative solution is focus on the development of environmental friendly plastic derived from renewable resource. Poly(lactic acid) (PLA) is a biodegradable polymer synthesized from biomass having potential to replace the petroleum-based non-degradable polymers utilizations. PLA can be synthesized by two methods: (1) ring-opening of lactide intermediate and (2) direct polycondensation of lactic acid processes. The latter process has advantages on high yields and high purity of polymer products, materials handling and ease of process treatments. The polymerization process of PLA synthesis has been widely studied in a laboratory scale. However, the mass scale production using direct polycondensation of lactic acid has not been reported. We have investigated the kinetics and scale-up process of direct polycondensation method to produce PLA in a pilot scale. The order of reaction is 2 and activation energy of lactic acid to lactic acid oligomers is 61.58 kJ/mol. The pre-polymer was further polymerized in a solid state polymerization (SSP) process. The synthesized PLA from both the laboratory and pilot scales show the comparable properties such as melting temperature and molecular weight. The appearance of synthesized PLA is yellow-white solid powder.

Effect of Service Quality Perception of Direct Purchase Shopping to Trust, Satisfaction, and Customer Loyalty (해외직접구매 사이트에 대한 서비스품질 지각이 소비자의 신뢰와 만족도 및 충성도에 미치는 영향)

  • Kim, Kyung Min;Park, Minjung
    • Journal of the Korean Society of Costume
    • /
    • v.67 no.2
    • /
    • pp.116-130
    • /
    • 2017
  • Consumers who purchase products from foreign countries and deliver them back to Korea are increasing. According to the Korea Fashion & Textile News (2015), overseas direct shopping reported 39% increase compared to 2013. Furthermore, clothes accounted for 19% of product category. Therefore, the service quality of overseas purchase sites is becoming more important, but studies have been limited. this research focuses on investigating the effects of consumers' shopping orientation on service quality and the effects of service quality on trust, satisfaction, and consumer loyalty. The survey was administered to consumers who had experiences in purchasing through overseas direct purchase websites. The results showed that the perception of service quality differed depending on the respondent's shopping orientation. Among the four shopping orientation groups(shopping confidence, shopping enjoyment, trend pursuit, and shopping follower groups), the shopping confidence group showed the highest mean for all service quality factors. All the groups showed the highest scores on product and trust among the factors of service quality. Next, the results revealed that service quality positively influenced consumers' trust on websites that provide overseas direct purchase services, which further improved customer loyalty. Therefore, the study gives managerial suggestions to online retailers that provide oversea shopping service. They need to provide higher site efficiency, security, product reliability, and responsiveness to cultivate international customers' trust and satisfaction. In particular, it will be important for them to offer accurate, reliable product information and various languages for overseas customers.