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Topic Review
Biography
Topic Review
Sensing and Measurement Techniques for Nature-Based Solutions Evaluation
Sensing and measurement techniques are necessary to study, evaluate, and understand the complex physical and chemical interactions that must occur for the successful deployment of nature-based solutions (NbS). Sensing and measurement techniques can provide useful meteorological and physiological data on nature-based interventions between different spatial, spectral, temporal, and thematic scales. Because NbS encompass research from across different fields, it is essential to reduce barriers to knowledge dissemination, and enable the circulation of information across different jurisdictions.
335
17 Aug 2023
Topic Review
Sensing Travel Source–Sink Spatiotemporal Ranges
Urban remote sensing is providing increasing theoretical and empirical evidence for addressing urban issues, such as traffic systems, medical health, and green spaces. Plentiful image remote sensing technologies have effectively supported the large-scale detection of urban facility distribution. However, cities do not entail only the coverage distribution of buildings, impervious surfaces, parks, and other facilities on the land, but also complex human activities among these urban facilities. Correspondingly, the sensing of human activity phenomena is an emerging exploration in urban remote sensing. The travel source–sink phenomenon is a typical urban traffic anomaly that reflects the imbalanced dissipation and aggregation of human mobility activities. It is useful for pertinently balancing urban facilities and optimizing urban structures to accurately sense the spatiotemporal ranges of travel source–sinks, such as for public transportation station optimization, sharing resource configurations, or stampede precautions among moving crowds.
172
14 Aug 2023
Topic Review
Sensitive Clay Slope
Sensitive clays are known for producing retrogressive landslides, also called spread or flowslides. The key characteristics associated with the occurrence of these landslides on a sensitive clay slope must be assessed, and the potential retrogressive distance must be evaluated. Common risk analysis methods include empirical methods for estimating the distance of potential retrogression, analytical limit equilibrium methods, numerical modelling methods using the strength reduction technique, and the integration of a progressive failure mechanism into numerical methods. Methods developed for zoning purposes in Norway and Quebec provide conservative results in most cases, even if they don’t cover the worst cases scenario. A flowslide can be partially analysed using analytical limit equilibrium methods and numerical methods having strength reduction factor tools. Numerical modelling of progressive failure mechanisms using numerical methods can define the critical parameters of spread-type landslides, such as critical unloading and the retrogression distance of the failure. Continuous improvements to the large-deformation numerical modeling approach allow its application to all types of sensitive clay landslides.
912
20 Aug 2020
Topic Review
September 1859 Geomagnetic Storm
The September 1859 geomagnetic storm (also known as the Carrington Event) was a powerful geomagnetic storm during solar cycle 10 (1855–1867). A solar coronal mass ejection (CME) hit Earth's magnetosphere and induced the largest geomagnetic storm on record on September 1–2, 1859. The associated "white light flare" in the solar photosphere was observed and recorded by British astronomers Richard C. Carrington and Richard Hodgson. The storm caused strong auroral displays and wrought havoc with telegraph systems. The now-standard unique IAU identifier for this flare is SOL1859-09-01. A solar storm of this magnitude occurring today would cause widespread electrical disruptions, blackouts and damage due to extended outages of the electrical grid. The solar storm of 2012 was of similar magnitude, but it passed Earth's orbit without striking the planet, missing by nine days.
904
21 Nov 2022
Topic Review
September 2019 Climate Strikes
The September 2019 climate strikes, also known as the Global Week for Future, were a series of international strikes and protests to demand action be taken to address climate change, which took place from 20–27 September. The strikes' key dates were 20 September, which was three days before the United Nations Climate Summit, and 27 September. The protests took place across 4,500 locations in 150 countries. The event is a part of the school strike for climate movement, inspired by Swedish climate activist Greta Thunberg. The Guardian reported that roughly 6 million people participated in the events, whilst 350.org—a group that organised many of the protests—claim that 7.6 million people participated. The 20 September protests were likely the largest climate strikes in world history. Organisers reported that over 4 million people participated in strikes worldwide, including 1.4 million participants in Germany. An estimated 300,000 protesters took part in Australian strikes, a further 300,000 people joined UK protests and protesters in New York—where Greta Thunberg delivered a speech—numbered roughly 250,000. More than 2,000 scientists in 40 countries pledged to support the strikes. A second wave of protests took place on 27 September, in which an estimated 2 million people took part in over 2,400 protests. There were reported figures of one million protesters in Italy, and 170,000 people in New Zealand. In Montreal, where Greta Thunberg spoke, the Montreal school board cancelled classes for 114,000 of its students. Hundreds of thousands of people, including several federal party leaders, joined the march in Montreal.
1.3K
13 Oct 2022
Topic Review
Serious Energy Games
Serious energy games (SEGs) as interactive experiences that engage users to various energy applications are gaining prominence as an innovative approach, particularly in the realm of energy usage, distributed generation, and interaction with energy markets.
812
10 Oct 2023
Topic Review
Service Design of Garbage Classification Driven by AI
Compared with other countries, there are big differences in the treatment modes and actual results of garbage classification due to different economic strengths, resource demands, technical levels, and legal policies.
416
29 Jan 2024
Topic Review
Services Accessibility in Rural Areas
The accessibility of services in rural areas can be considered to be one of the most important aspects of the creation of comparable living conditions in the whole territory of Europe. The inaccessibility of services can be considered an important factor of rural deprivation.
911
30 Aug 2021
Topic Review
Severity Indicator of Pesticide Poisoning
Pesticides are considered highly hazardous when presenting high acute toxicity according to internationally accepted classification systems such as the WHO Recommended Classification of Pesticides by Hazard. In addition, pesticides that cause severe or irreversible harm to health “… under conditions of use in a country” may be considered as highly hazardous.
600
17 Aug 2021
Topic Review
Sewage Sludge Management
One of the most pressing environmental problems worldwide is sewage sludge (SS) management. Every year, wastewater volume increases and thus, the amount of SS produced increases as well. The disposal of SS in landfills, as practiced in many countries, is not a sustainable solution. Instead, SS, rich in organic matter and other nutrients, can be used as an alternative soil additive or fertilizer. The properties of these materials depend on their chemical composition and the method of treatment. Experience from a number of countries, such as the US and Europe, has shown that SS can be transformed from waste into a valuable resource, provided that the final product fulfils the relevant regulatory standards.
532
06 Apr 2023
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