Enhancement for Dust-Sand Storm Images

2016 ◽  
pp. 842-849 ◽  
Author(s):  
Jian Wang ◽  
Yanwei Pang ◽  
Yuqing He ◽  
Changshu Liu
Keyword(s):  
Sand Storm

Development of transportation types and their usage on caravan roads in middle ages

2020 ◽  
Vol 3 (2) ◽  
pp. 19-23
Author(s):  
Jahongir Yunusugli Ergashev
Keyword(s):  
Middle Ages ◽  
Transport System ◽  
Geographical Location ◽  
Economic Relations ◽  
Trade Relations ◽  
Contagious Diseases ◽  
Sand Storm ◽  
Natural Climate ◽  
Daily Load ◽  
Daily Distance

During the existence of the Bukhara khanate, the economic and trade relations with neighboring countries on the territory of Central Asia have been largely based on transport system of the old network of roads. Along with the formation and development of communication routes, transportation vehicles also improved based on the natural climate and geographical location of different regions.  In the following article the info is given on the means of the transport used in the caravan routes in the trade-economic relations of khanate of Bukhara with neighboring countries in medieval times. Included there, the starting of domestication and usage of horse drawn vehicles, camels, donkeys and others, the capacity of daily load of camels, horses, donkeys which were core of caravans, their daily distance, the necessary tasks in the incidents occurred in caravan routes (injuries, bruises, contagious diseases) the stopping regulation of caravans (sand storm, in heat and frost) is thoroughly analyzed.

Impact of dust and sand storms on the aviation operation and assessment of conditions for their occurrence at aerodromes in European Russia

2020 ◽  
Vol 4 ◽  
pp. 78-95
Author(s):  
A.R. Ivanova ◽  
◽  
E.N. Skriptunova ◽  
N.I. Komasko ◽  
A.A. Zavialova ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Dust Storms ◽  
European Russia ◽  
Air Transport ◽  
Review Of Literature ◽  
Dust Transport ◽  
Air Masses ◽  
The Past ◽  
Sand Storm ◽  
The Impact

A review of literature on the impact of dust and sand storms on the air transport operation is presented. Observational data on dust storms at the aerodromes of European Russia for the period of 2001-2019 are analyzed. The seasonal variations in dust transport episodes at aerodromes and its relationship with visibility changes are discussed. The characteristics of dusty air masses and advection are given. It is concluded that the frequency of dust transfer episodes for the aerodromes under study has decreased over the past five years, except for Gumrak aerodrome (Volgograd). Keywords: dust storm, sand storm, aviation, visibility, seasonal variations, aerodrome оf European Russia

Experimental study on the origin of lobe-cleft structures in a sand storm

2021 ◽  
Author(s):  
Lin-Sen Zhang ◽  
Jian-Jun Tao ◽  
Guo-Hua Wang ◽  
Xiao-Jing Zheng
Keyword(s):  
Experimental Study ◽  
Sand Storm

scholarly journals A REVIEW OF WETLANDS AND COASTAL RESOURCES OF THE NIGER DELTA: POTENTIALS, CHALLENGES AND PROSPECTS

2021 ◽  
Vol 5 (1) ◽  
pp. 37-46
Author(s):  
Nwankwoala, H. O ◽  
Okujagu, D.C.
Keyword(s):  
Niger Delta ◽  
Crop Production ◽  
Flood Control ◽  
Invasive Plant ◽  
Oil And Gas ◽  
Well Being ◽  
Raw Material ◽  
Coastal Resources ◽  
Control Climate ◽  
Sand Storm

Wetlands are areas where water covers the soil or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season. The Niger Delta in Nigeria is the largest wetland in Africa and the third largest mangrove forest in the world with three sites listed as Ramsar Wetlands of International Importance. The Niger Delta wetlands and coastal resources are of high monetary significance to the local dwellers and the nation in general. This highly coveted wetland is changing rapidly, raising concern for its attendant implication on the communities relying upon its ecosystem potentials. A comprehensive data of the facilities delivered by wetlands is a significant key for real-time wetland ecosystem management. Existing literatures, were synthesized for this review on the potentials, challenges and prospects of the Niger Delta wetlands. It is pertinent from this review that the Niger Delta Wetland is wealthy in aquatic and terrestrial biodiversity of high financial significance to development of Nigeria, and is being challenged by natural and human activities such as dam construction, logging/lumbering, over-grazing, unrestrained tilling of soil for crop production, wetland reclamation, dredging, oil and gas exploration, over-fishing, invasive plant infestation, pollution, Coastal Infrastructure construction, poverty, droughts, desertification, sand storm, alien invasion, sea rising, erosion, etc. The Niger Delta Wetlands harbor tremendous wealth and supply many services that are necessary for human well-being such as location for spiritual renewal and recreation (eco-tourism), flood control, climate regulation, crop pollination, soil regeneration, raw material, energy, air and water purification; food chain supply, and medicines (Herbal solutions). This review postulates that in view of the immense significance and status of the Niger Delta Wetlands, effective and sequential monitoring be put in place by the establishment of centers of excellence in all universities in the Niger Delta Region with emphasis on studying the rich economic diversity of the wetland using remote sensing and Geographic Information System technologies for efficient conservation and management of the wetland resources.

Wear Characteristics of Polymer Tapes in ATM Tape-Scraper Tribosystem in Sand Dust Environment

2005 ◽  
Author(s):  
Tonghai Wu ◽  
Dongfeng Diao ◽  
Kazushi Yoshida
Keyword(s):  
Wear Rate ◽  
Wear Properties ◽  
Natural Sand ◽  
Abrasive Resistance ◽  
Simulated Environment ◽  
Clean Environment ◽  
Sand Storm ◽  
Clean Air ◽  
The Mean ◽  
Sand Dust

The tape-scraper tribosystem of ATM (Auto Teller Machine) was used to study the wear properties of polymer tapes of PEN (polyethylene-2, 6-naphthalenedicarboxylate) and PI (polyimide) sliding against polymer scraper of POM (polyoxymethylene) in the clean air environment and in the simulated environment of sand dust with the natural sand from the desert. As main results, the mean wear rate of the PEN tape in the sand storm environment was about 500 times of that in the clean environment and the mean wear rate of the PI tape in the sand storm environment was about 1700 times of that in the clean environment. The PI tape exhibited higher abrasive resistance than the PEN tape. The bill substrate increased the abrasive resistance of polymer tapes. The micro wear mechanism examination showed the plastic flow and the broken of fibers for PEN tape and block fracture due to brittle nature for PI tape.

SAND-STORM ELECTRICITY

Science ◽  
1930 ◽  
Vol 71 (1846) ◽  
pp. 506-506
Author(s):  
A. B. Reagan
Keyword(s):  
Sand Storm

scholarly journals Stochastic modeling the effect of wind gust on dust entrainment during sand storm

2012 ◽  
Vol 57 (27) ◽  
pp. 3595-3602 ◽  
Author(s):  
XueLing Cheng ◽  
QingCun Zeng ◽  
Fei Hu
Keyword(s):  
Stochastic Modeling ◽  
Wind Gust ◽  
Sand Storm ◽  
Dust Entrainment

scholarly journals Preparedness components of health systems in the Eastern Mediterranean Region for effective responses to dust and sand storms: a systematic review

F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 146
Author(s):  
Kiyoumars Allahbakhshi ◽  
Davoud Khorasani-Zavareh ◽  
Reza Khani Jazani ◽  
Zohreh Ghomian
Keyword(s):  
Systematic Review ◽  
Health Effects ◽  
Health Systems ◽  
Mediterranean Region ◽  
Eastern Mediterranean ◽  
Eastern Mediterranean Region ◽  
Hazard Identification ◽  
Cochrane Library ◽  
Potential Health ◽  
Sand Storm

Background: Dust and Sand Storm (DSS), according to estimates by global reports, will increase dramatically in the Eastern Mediterranean Region (EMR). Numerous health problems caused by DSS will be severely affected regions and vulnerable groups. This study aimed to identify the components of the preparedness of health systems for the DSS phenomenon in EMR. Methods: In this systematic review, the peer-reviewed papers in four electronic databases, including Medline through PubMed, Scopus, ISI Web of Science and the Cochrane library, as well as available grey literature, were searched and selected. The research process was carried out by including papers whose results were related to the potential health effects caused by desert dusts in EMR. Was used the combination of three groups of keywords: the exposure factor, health effects as outcomes, and the countries located in EMR. The focus was on the PRISMA checklist, with no time limitations until December 2017. Finally, through 520 related citations, 30 articles were included. Descriptive and thematic content analyses were evaluated. Results: The preparedness components were divided into three and ten main categories and subcategories, respectively. The three categories covered the areas of DSS hazard identification, planning and policy-making, and risk assessment. Conclusions: Recognition of the health system preparedness factors for DSS in EMR will help policy-makers and managers perform appropriate measures when dealing with this hazard. More studies should be conducted to understand these factors in other parts of the world. Registration: PROSPERO registration number CRD42018093325.

scholarly journals Establishment and maintenance of regulating ecosystem services in a dryland area of Central Asia: the Kökyar Protection Forest, Aksu, NW China, as an example

2014 ◽  
Vol 5 (2) ◽  
pp. 1673-1709
Author(s):  
S. Missall ◽  
M. Welp ◽  
N. Thevs ◽  
A. Abliz ◽  
Ü. Halik
Keyword(s):  
Ecosystem Services ◽  
Local Economy ◽  
Future Research ◽  
Taklimakan Desert ◽  
Net Benefit ◽  
Government Grants ◽  
Protection Forest ◽  
Sand Storm ◽  
Northern Fringe ◽  
Financial Burdens

Abstract. The city of Aksu, situated at the northern fringe of the Taklimakan Desert in the northwest of China, is exposed to periodic severe dust and sand storms. In 1986, local authorities decided to establish a peri-urban shelterbelt plantation, the so-called Kökyar Protection Forest. It was realised as a patchwork of poplar shelterbelts and orchards. The total area of the plantation reached 3800 ha in 2005. This endeavour was made possible by the annual mass mobilisation of Aksu citizens, based on the Chinese regulation of the "National Compulsory Afforestation Campaigns". Establishment costs amounted to ca. CNY 60 000 ha−1 (ca. USD 10 000 ha−1). The regulating ecosystem services provided by Kökyar Protection Forest clearly reduce dust and sand storm impacts on Aksu City. Permanent maintenance of the plantation is facilitated by leasing orchard plots to private fruit farmers. This system ensures forest tending, reduces government expenses, and provides incomes to farmers. From the perspective of the local economy, annual farming net benefits generated by Kökyar fruit farmers more than compensate annual government grants for maintenance, resulting in an overall monetary net benefit of at least CNY 10 500 ha−1 (ca. USD 1600 ha−1) on the long-term average. The intended regulating ecosystem services can thus be provided to the citizens of Aksu without payments for ecosystem services or other financial burdens. For a more complete understanding of Kökyar Protection Forest, future research should be directed towards quantifying the effect of its regulating ecosystem services, and on investigating the negative downstream consequences of its water consumption.

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