scholarly journals COASTAL PROCESSES FROM SPACE PHOTOGRAPHY

1970 ◽  
Vol 1 (12) ◽  
pp. 39
Author(s):  
Maynard M. Nichols
Keyword(s):  
Large Scale ◽  
Salt Water ◽  
Remote Sensing Data ◽  
Vantage Point ◽  
Coastal Processes ◽  
Time Intervals ◽  
Wide Range ◽  
The World ◽  
Routine Basis ◽  
Short Time

Photographs taken from space provide a new source of data concerning coastal processes By utilizing the high vantage point and broad view orbiting space cameras can record little known large-scale processes at short time intervals Major outflow plumes, fresh-salt water "fronts", turbidity maxima and massive effluents are among the wide range of features displayed It is shown from selected examples how coastal processes can be evaluated from space photography and how the information may be of use for solving certain problems as a supplement to field and other remote sensing data By 1972 satellite photography will be available on a routine basis for many coasts of the world Engineers are urged to consider the potential for improving their information which space photography has to offer.

Investment in the agricultural sector as a way to solve food security problems in developing countries: the example of investment activity of the US agribusiness

2021 ◽  
Author(s):  
Elena Stepanovna Ustinovich ◽  
Tatyana Petrovna Boldyreva
Keyword(s):  
Developing Countries ◽  
Large Scale ◽  
Agricultural Sector ◽  
International Investment ◽  
Investment Activity ◽  
Agricultural Investment ◽  
Wide Range ◽  
The Us ◽  
The World ◽  
Potential Benefits

It is clear to everyone that investment in the agricultural sector in developing countries is one of the most effective ways to reduce poverty and hunger in the world. Agricultural investment can generate a wide range of development opportunities. However, these benefi ts cannot be expected to arise automatically. Some forms of large-scale investment pose significant risks to investor states. It should be noted, however, that, despite discussions about the potential benefits and risks of international investment, there is still no evidence of negative actual consequences for the countries receiving investments. This article examines the issues of investment activity in relation to developing countries using the example of US agribusiness entities.

scholarly journals An Efficient Time Reversal Method for Lamb Wave-Based Baseline-Free Damage Detection in Composite Laminates

2018 ◽  
Vol 9 (1) ◽  
pp. 11 ◽  
Author(s):  
Liping Huang ◽  
Junmin Du ◽  
Feiyu Chen ◽  
Liang Zeng
Keyword(s):  
Damage Detection ◽  
Time Reversal ◽  
Lamb Wave ◽  
Composite Laminates ◽  
Narrow Band ◽  
Great Influence ◽  
Time Intervals ◽  
Wide Range ◽  
Reconstructed Signal ◽  
Short Time

Time reversal (TR) concept is widely used for Lamb wave-based damage detection. However, the time reversal process (TRP) faces the challenge that it requires two actuating-sensing steps and requires the extraction of re-emitted and reconstructed waveforms. In this study, the effects of the two extracted components on the performance of TRP are studied experimentally. The results show that the two time intervals, in which the waveforms are extracted, have great influence on the accuracy of damage detection of the time reversal method (TRM). What is more, it requires a large number of experiments to determine these two time intervals. Therefore, this paper proposed an efficient time reversal method (ETRM). Firstly, a broadband excitation is applied to obtain response at a wide range of frequencies, and ridge reconstruction based on inverse short-time Fourier transform is applied to extract desired mode components from the broadband response. Subsequently, deconvolution is used to extract narrow-band reconstructed signal. In this method, the reconstructed signal can be easily obtained without determining the two time intervals. Besides, the reconstructed signals related to a series of different excitations could be obtained through only one actuating-sensing step. Finally, the effectiveness of the ETRM for damage detection in composite laminates is verified through experiments.

Contrasting tactical and strategic dynamics on a Clausewitz landscape

2019 ◽  
Vol 17 (2) ◽  
pp. 143-153
Author(s):  
Rodrick Wallace
Keyword(s):  
Statistical Models ◽  
Limit Theorems ◽  
Large Scale ◽  
Evolutionary Process ◽  
Short Term ◽  
Local Resources ◽  
Human Organization ◽  
The World ◽  
Short Time

Statistical models based on the asymptotic limit theorems of control and information theories allow formal examination of the essential differences between short-time “tactical” confrontations and a long-term “strategic” conflict dominated by evolutionary process. The world of extended coevolutionary conflict is not the world of sequential “muddling through.” The existential strategic challenge is to take cognitive control of a long-term dynamic in which one may, in fact, be “losing” most short-term confrontations. Winning individual battles can be a relatively direct, if not simple or easy, matter of sufficient local resources, training, and resolve. Winning extended conflicts is not direct, and requires management of subtle coevolutionary phenomena subject to a dismaying punctuated equilibrium more familiar from evolutionary theory than military doctrine. Directed evolution has given us the agricultural base needed for large-scale human organization. Directed coevolution of the inevitable conflicts between the various segments of that organization may be needed for its long-term persistence.

Enterprise Crowdsourcing Platform to Improve HR Workflow

2020 ◽  
Vol 9 (5) ◽  
pp. 5-8 ◽  
Author(s):  
G. Zuev
Keyword(s):  
Large Scale ◽  
Best Practice ◽  
Cost Effective ◽  
Hr Management ◽  
Practical Project ◽  
Effective Manner ◽  
Wide Range ◽  
Hr Managers ◽  
Short Time ◽  
Small Parts

Crowdsourcing technologies may solve a wide range of business issues: improve efficiency of HR management, increase customer loyalty and maximize economic efficiency of whole enterprise. The recent years best practice has shown how crowdsourcing is gaining particular relevance of human resource management, allowing HR managers to resolve organization relevant problems in quick and cost-effective manner. Important advantage of crowdsourcing сomes from his main ability: decomposition of tasks into small parts and the ability to perform it’s remotely, via Internet. Thanks to this, not only large corporations, but also small and medium-sized businesses can execute a large-scale projects in a short time. This article discusses the main approaches and principles of practical project management via crowdsourcing platforms, using as the example “Beorg Smart Vision” solution.

Microwave-enhanced metal- and acid-catalysed hydrogen isotope exchange reactions

1998 ◽  
Vol 76 (6) ◽  
pp. 726-728 ◽  
Author(s):  
Jean M Barthez ◽  
Anton V Filikov ◽  
Lottie B Frederiksen ◽  
Marie-Loire Huguet ◽  
John R Jones ◽  
...  
Keyword(s):  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Exchange Reactions ◽  
Time Intervals ◽  
Considerable Potential ◽  
Hydrogen Isotope Exchange ◽  
Wide Range ◽  
Homogeneous Acid ◽  
Acid Catalysed Reactions ◽  
Short Time

The benefits of using microwaves to accelerate the rates of hydrogen isotope exchange reactions are illustrated by reference to heterogeneous and homogeneous metal-catalysed reactions as well as to homogeneous acid-catalysed reactions. The results show that good incorporation of deuterium is obtained in very short time intervals, typically <20 min, and that the approach has considerable potential for the labeling of a wide range of compounds with both deuterium and, by implication, tritium.Key words: microwave enhanced deuteriations, hydrogen isotope exchange.

Appearance of atypical Puccinia striiformis f. sp. tritici phenotypes in north-western Europe

2007 ◽  
Vol 58 (6) ◽  
pp. 518 ◽  
Author(s):  
Mogens S. Hovmøller ◽  
Annemarie F. Justesen
Keyword(s):  
Large Scale ◽  
Western Europe ◽  
Puccinia Striiformis ◽  
Yellow Rust ◽  
Time Period ◽  
Genetic Interpretation ◽  
Wide Range ◽  
Diverse Origin ◽  
Large Scale Cultivation ◽  
Short Time

A combination of large-scale cultivation of highly susceptible cultivars and mild winters caused severe yield losses due to yellow rust in NW Europe in the early 1990s, but in recent years the disease has become less predominant. Several atypical Puccinia striiformis f. sp. tritici pathotypes have been observed in recent years, showing virulence spectra which made them able only to infect cultivars covering less than 5% of the wheat and triticale area in Denmark. Some were even unable to grow on any of the standard ‘European’ and ‘World’ yellow rust differentials. We observed 2 distinct groups of atypical pathotypes, each subdividing into 2 highly divergent AFLP phenotypes. It was striking that AFLP diversity among unusual pathotypes, sampled within a short time period in a small area on very few host cultivars, which induced limited or no selection on the pathogen population, was 3–4 times higher than among isolates sampled from a large number of cultivars with different Yr-genes in 4 different countries during more than 25 years. The repeated occurrence of atypical phenotypes of diverse origin may suggest a more frequent and even more distant dispersal of P. striiformis uredospores than previously anticipated. Finally, the disease reactions conferred by these unusual types on a wide range of differentials were used to discuss the limits for a genetic interpretation in terms of assessment of virulence and avirulence in pathogen isolates.

scholarly journals Green Buildings Amid Efficiency and Sustainability

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Yosof M Khalifa ◽  
Salah M Mady
Keyword(s):  
Energy Consumption ◽  
Large Scale ◽  
Green Building ◽  
Wide Range ◽  
The World ◽  
Reduce Energy Consumption ◽  
Reduction Of Energy Consumption ◽  
Building Life Cycle ◽  
Building Operation ◽  
Made In

The vast increase of energy consumption, global warming and the harm they cause to the environment, emerge to be a major obstruction that distresses the world today. The current work views one of the methods that the world focused on as means of reducing the environmental harms and that is, through green building, or in more common words sustainable buildings. Those means, covers the exercising of a wide range of applications including merging of new and specific technologies in which through fulfilling its basis, the process of evaluation of the building takes place in terms of its harmony with the environment, reduction of energy consumption, and the reduction of the environmental problems caused by the building life cycle starting from defining of location, design of the building, operation, maintenance, repairing and up to the renewal of the building.  Despite the significance of green building, no profit nor implementations has yet been made in Libya. The latter is due to the lack of awareness by many Libyan social groups. From here, the idea behind this paper crystalized. It aims to spread and enhance the knowledge and techniques of green building. It also penetrates into the green building features and advantages that are considered to be a preliminary step to start its application in a wide range coinciding with the grand progress that the country has witnessed in the field of construction and housing. This paper concludes that it is possible to reduce energy consumption and the harm it causes to the environment after the implementation and merging of green building techniques and should be applied on a large scale covering the whole country. 

Deworm the World

2018 ◽  
Author(s):  
Mary Kay Gugerty ◽  
Dean Karlan
Keyword(s):  
Data Collection ◽  
School Children ◽  
Large Scale ◽  
Activity Tracking ◽  
Large Scale System ◽  
Wide Range ◽  
The World ◽  
The Right

Deworm the World serves millions of school children every year. Monitoring on such a large scale can amplify the difficulty of developing a right-fit system: How can an organization ensure credible data collection across a wide range of sites and prioritize actionable information that informs implementation? How can such a large-scale system rapidly respond to issues once identified? This case illustrates the challenge of finding credible and actionable activity tracking measures. How does Deworm the World apply the credible, actionable, and responsible principles to determine the right amount of data to collect and the right time and place at which to collect it?

scholarly journals APPLICATION OF COMPOSITE GROYNES IN STABILIZING DUBAI BEACHES

2018 ◽  
pp. 8
Author(s):  
Ibrahim Mohammad Juma ◽  
Sankarbabu Karanam ◽  
Alya Abdulrahim Al Harmoudi
Keyword(s):  
Environmental Impacts ◽  
Coastal Zone ◽  
Large Scale ◽  
Beach Nourishment ◽  
Coastal Processes ◽  
Recreational Activities ◽  
Beach Width ◽  
The World

The increase in demand for waterfront living has led to the development of large-scale offshore reclamation projects - The Palm Jumeirah, The World etc., rapidly transforming the coastal zone of Dubai. Development of such offshore islands have interfered with the coastal processes causing reorientation of shorelines at several stretches of Dubai coast (Mangor et al 2008). Regular beach nourishment programs to maintain the required minimum beach width for recreational activities was found to be ineffective due to non-availability of beach quality sand and environmental impacts of dredging and sand shifting operations.

scholarly journals Global distribution of nearshore slopes with implications for coastal retreat

2019 ◽  
Author(s):  
Panagiotis Athanasiou ◽  
Ap van Dongeren ◽  
Alessio Giardino ◽  
Michalis Vousdoukas ◽  
Sandra Gaytan-Aguilar ◽  
...  
Keyword(s):  
Spatial Variation ◽  
Sea Level Rise ◽  
Sea Level ◽  
Large Scale ◽  
Input Parameter ◽  
Coastal Processes ◽  
The World ◽  
Important Input ◽  
Significant Spatial Variation ◽  
Coastal Retreat

Abstract. Nearshore slope, defined as the cross-shore gradient of the subaqueous profile, is an important input parameter which affects hydrodynamic and morphological coastal processes. It is used in both local and large-scale coastal investigations. However, due to unavailability of data, most studies, especially those that focus on continental or global scales, have historically adopted a uniform nearshore slope. This simplifying assumption could however have far reaching implications for predictions/projections thus obtained. Here, we present the first global dataset of nearshore slopes with a resolution of 1 km at almost 620,000 points along the global coastline. To this end, coastal profiles were constructed using global topo-bathymetric datasets. The results show that the nearshore slopes vary substantially around the world. An assessment of sea level rise (SLR) driven coastline recession (for an arbitrary 0.5 m SLR) with a globally uniform coastal slope of 1:100, as done in previous studies, and with the spatially variable coastal slopes computed herein shows that, on average, the former approach would under-estimate coastline recession by about 40 %, albeit with significant spatial variation. The final dataset has been made publicly available at https://doi.org/10.4121/uuid:a8297dcd-c34e-4e6d-bf66-9fb8913d983d.

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