Optimized Selection of Slurry Pump under Long Distance Conveying Conditions

2019 ◽  
Vol 07 (04) ◽  
pp. 322-326
Author(s):  
蕊 孙
Keyword(s):  
Long Distance ◽  
Selection Of

scholarly journals Prognostics and health management technology for radar system

2020 ◽  
Vol 309 ◽  
pp. 04009
Author(s):  
Yongle Lyu ◽  
Zhuo Pang ◽  
Chuang Zhou ◽  
Peng Zhao
Keyword(s):  
Model Building ◽  
Health Management ◽  
Radar System ◽  
Prognostics And Health Management ◽  
Failure Model ◽  
Long Distance ◽  
Maintenance System ◽  
Management Technology ◽  
Key Techniques ◽  
Selection Of

Information-based war in the future has a higher requirement to the maintenance and support ability of radar system. Prognostics and Health Management(PHM) technology represents the research hotspot of maintenance system, and following key techniques need to be resolved to research on the radar PHM technology such as the acquirement and selection of health information and fault signs of a radar’s electronical components, mass data warehousing and mining, fusion of multi-source test data and multi-field characteristic information, failure model building and forecasting, automatic decision-making on maintenance, and at the same time improving the self built-in test abilities of radar’s components based on the optimization of Design For Testability(DFT). The radar PHM technology has the trend of “built-in to integrate”, “together with DFT” and “long-distance and distributed”. However, subjected to radar’s complexity and current PHM technique level, radar PHM engineering still meets many challenges, but has bright future.

Environmental analysis in the selection of alternative corridors in a long-distance linear project: A methodological proposal

2006 ◽  
Vol 80 (3) ◽  
pp. 266-278 ◽  
Author(s):  
Alejandro J. Rescia ◽  
Elizabeth N. Astrada ◽  
Julieta Bono ◽  
Carlos A. Blasco ◽  
Paula Meli ◽  
...  
Keyword(s):  
Environmental Analysis ◽  
Long Distance ◽  
Selection Of

On the way from misery to happiness? A longitudinal perspective on economic migration and well-being

2018 ◽  
Vol 8 (3) ◽  
pp. 307-355
Author(s):  
Fabian Kratz
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Panel Study ◽  
Well Being ◽  
Long Distance ◽  
Economic Migration ◽  
Nationally Representative ◽  
Dynamic Relationships ◽  
Migration Type ◽  
Selection Of

Abstract The assessment of returns from migration lies at the very heart of migration research. While a growing body of literature examines the links between migration and well-being, dynamic relationships require further elaboration. Using the longest running, nationally representative panel study with information on well-being, the German Socio-Economic Panel (1985–2016) this article addresses two essential, as yet unresolved, questions: How does the favourable self-selection of economic migrants affect their well-being before relocation?How does the well-being of economic migrants develop when individuals approach migration, and thereafter? Results show that—although favourably selected regarding determinants of well-being—economically motivated migrants are not happier before relocating than those who stay. Furthermore, economic migration has a causal impact on well-being, net of both observed and unobserved differences between migrants and stayers. This impact is transitory for women and long-lasting for men. For men, the results corroborate the view that migration enables access to opportunity structures favouring the pursuit of individual happiness. Results also differ by migration type: While long-distance movers and return migrants show a period of depressed happiness before a move, these findings do not hold for short-distance and onward migrants. Furthermore, moving towards urban areas results in stronger permanent effects than moving towards rural areas.

scholarly journals Ontogenetic development of migration: Lagrangian drift trajectories suggest a new paradigm for sea turtles

2010 ◽  
Vol 7 (50) ◽  
pp. 1319-1327 ◽  
Author(s):  
Graeme C. Hays ◽  
Sabrina Fossette ◽  
Kostas A. Katselidis ◽  
Patrizio Mariani ◽  
Gail Schofield
Keyword(s):  
Climate Change ◽  
Breeding Season ◽  
Sea Turtles ◽  
Rapid Evolution ◽  
New Paradigm ◽  
Breeding Area ◽  
Long Distance ◽  
Environmental Forcing ◽  
Nesting Beaches ◽  
Selection Of

Long distance migration occurs in a wide variety of taxa including birds, insects, fishes, mammals and reptiles. Here, we provide evidence for a new paradigm for the determinants of migration destination. As adults, sea turtles show fidelity to their natal nesting areas and then at the end of the breeding season may migrate to distant foraging sites. For a major rookery in the Mediterranean, we simulated hatchling drift by releasing 288 000 numerical particles in an area close to the nesting beaches. We show that the pattern of adult dispersion from the breeding area reflects the extent of passive dispersion that would be experienced by hatchlings. Hence, the prevailing oceanography around nesting areas may be crucial to the selection of foraging sites used by adult sea turtles. This environmental forcing may allow the rapid evolution of new migration destinations if ocean currents alter with climate change.

scholarly journals The Use of Medicinal Plants by Migrant People: Adaptation, Maintenance, and Replacement

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Patrícia Muniz de Medeiros ◽  
Gustavo Taboada Soldati ◽  
Nélson Leal Alencar ◽  
Ina Vandebroek ◽  
Andrea Pieroni ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Herbal Medicines ◽  
Long Distance ◽  
Beliefs And Practices ◽  
Migrant Communities ◽  
Plant Resource ◽  
Migrant Populations ◽  
Continued Use ◽  
Migrant People ◽  
Selection Of

Given the importance of studying the knowledge, beliefs, and practices of migrant communities to understand the dynamics of plant resource use, we reviewed the scientific literature concerning the use of medicinal plants by migrant populations engaged in international or long-distance migrations. We considered the importance of two processes: (1) adaptation to the new flora of the host country (i.e., substitution and incorporation of plants in the pharmacopoeia) and (2) continued use and acquisition of the original flora from migrants' home countries (i.e., importation, cultivation, and/or continued use of plants that grow in both host and home environments). We suggest that, depending on the specific context and conditions of migration, different processes that determine the use and/or selection of plants as herbal medicines may become predominant.

scholarly journals Global DNA methylation changes in Cucurbitaceae inter-species grafting

2015 ◽  
Vol 15 (2) ◽  
pp. 112-116 ◽  
Author(s):  
Evangelia Avramidou ◽  
Aliki Kapazoglou ◽  
Filippos A. Aravanopoulos ◽  
Aliki Xanthopoulou ◽  
Ioannis Ganopoulos ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Molecular Markers ◽  
Disease Resistance ◽  
Molecular Mechanisms ◽  
Genetic Material ◽  
Methylation Pattern ◽  
Global Dna Methylation ◽  
Long Distance ◽  
Epigenetic Effect ◽  
Selection Of

Grafting has been used to improve yield, fruit quality and disease resistance in a range of tree and vegetable species. The molecular mechanisms underpinning grafting responses have only recently started to be delineated. One of those mechanisms involves long distance transfer of genetic material from rootstock to scion alluding to an epigenetic component to the grafting process. In the research presented herein we extended published work on heritable changes in the DNA methylation pattern of Solanaceae scion genomes, in Cucurbitaceae inter-species grafting. Specifically, we examined global DNA methylation changes in scions of cucumber, melon and watermelon heterografted onto pumpkin rootstocks using MSAP analysis. We observed a significant increase of global DNA methylation in cucumber and melon scions pointing to an epigenetic effect in Cucurbitaceae heterografting. Exploitation of differential epigenetic marking in different rootstock-scion combinations could lead to development of epi-molecular markers for generation and selection of superior quality grafted vegetables.

scholarly journals A Unified Algorithm for Virtual Desktops Placement in Distributed Cloud Computing

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Jiangtao Zhang ◽  
Lingmin Zhang ◽  
Hejiao Huang ◽  
Xuan Wang ◽  
Chonglin Gu ◽  
...  
Keyword(s):  
Cloud Service ◽  
Support Service ◽  
Long Distance ◽  
Cloud Service Provider ◽  
User Request ◽  
Unified Algorithm ◽  
Baseline Algorithm ◽  
Distributed Cloud ◽  
Selection Of

Distributed cloud has been widely adopted to support service requests from dispersed regions, especially for large enterprise which requests virtual desktops for multiple geodistributed branch companies. The cloud service provider (CSP) aims to deliver satisfactory services at the least cost. CSP selects proper data centers (DCs) closer to the branch companies so as to shorten the response time to user request. At the same time, it also strives to cut cost considering both DC level and server level. At DC level, the expensive long distance inter-DC bandwidth consumption should be reduced and lower electricity price is sought. Inside each tree-like DC, servers are trying to be used as little as possible so as to save equipment cost and power. In nature, there is a noncooperative relation between the DC level and server level in the selection. To attain these objectives and capture the noncooperative relation, multiobjective bilevel programming is used to formulate the problem. Then a unified genetic algorithm is proposed to solve the problem which realizes the selection of DC and server simultaneously. The extensive simulation shows that the proposed algorithm outperforms baseline algorithm in both quality of service guaranteeing and cost saving.

scholarly journals FOOD PREFERENCES IN MEALS CONSUMED BY LONG-DISTANCE TRUCK DRIVERS

2018 ◽  
Vol XX (6) ◽  
pp. 175-180
Author(s):  
Walter Moturi ◽  
Wojciech J. Florkowski
Keyword(s):  
Formal Education ◽  
Food Preferences ◽  
Individual Characteristics ◽  
Truck Drivers ◽  
Long Distance ◽  
Eating Meat ◽  
Preliminary Study ◽  
Selection For ◽  
Additional Income ◽  
Selection Of

This preliminary study identifies individual characteristics and job features that significantly influence the selection of meat for breakfast and lunch by truck drivers in Kenya. Based on the survey data collected in July 2017, two equations are estimated using the logit technique. Results show that individual characteristics drive the choice of non-meat foods for breakfast, while job features and environment encourage meat selection for lunch. Having formal education lowers the probability of choosing meat for either meal, but taking hitchhikers strongly encourages eating meat for lunch, likely due to the additional income from fees paid by travelers to the driver.

scholarly journals Development of an experimental installation for gray seal magnetoreception research

2021 ◽  
Vol 12 (3-2021) ◽  
pp. 157-163
Author(s):  
A.P. Yakovlev ◽  
Keyword(s):  
Reference Point ◽  
Geomagnetic Field ◽  
Helmholtz Coil ◽  
Long Distance ◽  
Gray Seal ◽  
Experimental Installation ◽  
Magnetic Sense ◽  
Selection Of

The assumption was made that Cetaceans, both whales and dolphins, are using geomagnetic field of Earth for orientations during migration. Pinnipeds also make long-distance migrations in open seas without apparent reference point. That may be an evidence of magnetic sense in pinnipeds. In this paper we describe development and construction of experimental installation based on Helmholtz coil for gray seal magnetoreception research. A technique of “selection of an object with specified characteristics” is described, adapted for conduction of experiments with pinnipeds.

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