scholarly journals Consideration of climate change-induced corrosion by structural codes

Author(s):  
Maria Nogal ◽  
Emilio Bastidas-Arteaga ◽  
Helena Maria dos Santos Gervásio

<p>The impact of climate change on ambient temperature and relative humidity along with the present CO2 levels are speeding the corrosion process of reinforced concrete structures. The alarming cost of the associated reduction of the service life of structures, which is estimated to cost 3% to 4% of the Gross Domestic Product (GDP) of industrialized countries, has put the spotlight on the importance of introducing the issue of climate change on the new generation of Eurocodes. Amongst the strategies to tackle the problem, design-phase measures seem not to be always cost- effective, nevertheless, measures during service-life are generally the most expensive. This paper discusses the potential strategies to be addressed by structural codes to tackle the problem of climate change-induced corrosion, considering aspects such as the cost-benefit analysis, viability, and the large uncertainty involved in climate change evolution.</p>

2021 ◽  
Author(s):  
R. Nandhi Kesavan ◽  
Latha K

Abstract Among all the threats to global diversity, climate change is the most severe cause. According to the world’s biodiversity conservation organization, reptile species are affected mostly because the biological and ecological traits of the reptiles are strongly linked with climate. To prevent species extinction, we tried to develop a decision support system that incurs the costs and benefits of reintroducing a taxon from its origin to adapt environmental conditions to conserve it from its extinction. The model was developed by applying multiple linear regressions that take the climatic variables and species traits to determine the cost and benefits for the distribution of species. The effectiveness of the model was evaluated by applying it to the Indian Black Turtle, which is an endangered species list in India evaluated by the International Union for Conservation of Nature list. The model recommends moving the species, which is endangered, to the location where it can save itself from climate change. However, the framework demonstrates huge differences in the estimated significance of climate change, and the model strategy helps to recognize the probable risk of increased revelation to critically endangered species.


Author(s):  
Kit N Simpson ◽  
Michael J Fossler ◽  
Linda Wase ◽  
Mark A Demitrack

Aim: Oliceridine, a new class of μ-opioid receptor agonist, is selective for G-protein signaling (analgesia) with limited recruitment of β-arrestin (associated with adverse outcomes) and may provide a cost-effective alternative versus conventional opioid morphine for postoperative pain. Patients & methods: Using a decision tree with a 24-h time horizon, we calculated costs for medication and management of three most common adverse events (AEs; oxygen saturation <90%, vomiting and somnolence) following postoperative oliceridine or morphine use. Results: Using oliceridine, the cost for managing AEs was US$528,424 versus $852,429 for morphine, with a net cost savings of $324,005. Conclusion: Oliceridine has a favorable overall impact on the total cost of postoperative care compared with the use of the conventional opioid morphine.


2010 ◽  
Vol 62 (7) ◽  
pp. 1623-1628
Author(s):  
Åsa Sivard ◽  
Tomas Ericsson ◽  
Nippe Hylander ◽  
Magnus Karlsson ◽  
Mikael Malmaeus

In an environmentally harmonized society the most cost effective measures to reduce the total effluent discharges should be taken into account. Generalised discharge values are presented for organic material and nutrients in this paper. Depending on conditions in the receiving water any of these parameters can be the determining factor for the eutrophication and oxygen demand. These parameters can be generalized into equivalent loads of TOC, nitrogen or phosphorus by recalculation according to the Redfield ratio. The cost for reduction of organic material and nutrients from a pulp and paper mill is calculated as a cost per unit pollutant (cost equivalent). This cost equivalent is compared with alternative costs, expressed in the same way, for reduction of organic material and nutrients in adjacent industries, municipal treatment plants, impact from transportation, farming, air deposits etc. In order to find where the most cost efficient measures for the society should be taken the cost equivalent for the mill is compared with the alternative measures and their equivalent costs.


2014 ◽  
Vol 663 ◽  
pp. 596-603
Author(s):  
Zulhaidi Mohd Jawi ◽  
Aqbal Hafeez Ariffin ◽  
Yahaya Ahmad ◽  
Khairil Anwar Abu Kassim ◽  
Norlen Mohamed ◽  
...  

The newly established New Car Assessment Program for Southeast Asian Countries (ASEAN NCAP) has incorporated Safety Assist Technologies (SATs) in its automobile safety rating scheme. In order for any assessed car to be eligible for the maximum 5-star rating, it should first be equipped with Electronic Stability Control (ESC) and fitted with seatbelt reminder (SBR). However, since these SATs are not being evaluated in their performance by the means of field testing, this paper explains the benefit of having these SATs through Cost-Benefit Analysis (CBA) which help to rationalize the importance of SATs in preventing road accidents or mitigating severity of injuries. Due to data limitation, this preliminary CBA assessment will only be focusing on Malaysia’s situation and is based on published sources and the authors’ best estimates. This study also includes the Cost-Benefit Analysis on Anti-lock Braking System (ABS), which is the basis for ESC technology, in preparation for its inclusion in the future rating scheme to expedite the vision of making ABS as standard fit in all ASEAN’s passenger cars. The preliminary result shows that all technologies – ESC, SBR and ABS – appear to be cost-effective (benefit/cost-ratio > 3) or most likely cost effective (1 < benefit/cost-ratio < 3) in Malaysia’s road safety situation per se.


Atmosphere ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 686 ◽  
Author(s):  
Terje Grøntoft

This work reports marginal damage costs to façades due to air pollution exposure estimated “bottom up,” for Norway and Oslo (Norway) by the use of exposure response functions (ERFs) and impact pathway analysis from the emission to the deteriorating impact. The aim of the work was to supply cost estimates that could be compared with reported damage costs to health, agriculture, and ecosystems, and that could be used in cost-benefit analysis by environmental authorities. The marginal damage costs for cleaning, repair, and in total (cleaning + repair) were found to be, in Norway: eight, two, and 10, respectively, and for a traffic situation in Oslo: 50 (77), 50 (28), and 100 (105), (×/÷ 2.5) Euro/kg emission of PM10, SO2, and NO2 in total. For Oslo, the values represent a recorded façade materials inventory for 17–18th century buildings, and in the brackets the same façade inventory as for Norway. In total, 5–10% of the marginal damage cost was found to be due to NO2. The total marginal cost was found to be shared about equally between the impact of PM10 and SO2 in Norway (50 and 42% of the impact) and for the 17–18th century buildings in Oslo (45% and 49% of the impact), but for a similar façade materials inventory in Oslo as Norway, the total marginal cost due to PM10 was about two-thirds and that due to SO2 about one-third of the total, with about 5% of the cost still being due to NO2. The division of the costs between the separate pollutant influences on the cleaning and repair was, however, found to be significantly different in Norway and Oslo. In Norway, about 60% of the marginal cleaning cost was found to be due to PM10, 30% due to SO2, and 10% due to NO2. In Oslo, about 85% of the marginal cleaning costs were found to be due to PM10, 10% due to SO2, and 5% due to NO2. For the marginal repair cost, the opposite situation was found, in both Norway and Oslo, with 80–90% of the cost being due to SO2, 5–10% being due to PM10, and 5–10% due to NO2. As other factors than air pollution deteriorates façades and influences maintenance decisions, the expenses that can be attributed to the air pollution could be significantly lower.


2021 ◽  
pp. 088740342199843
Author(s):  
Grant Duwe ◽  
Susan McNeeley

In July 2018, the Minnesota Department of Corrections revised the criteria it uses to place soon-to-be-released prisoners on intensive supervision by shifting from mostly offense-based conditions to those based exclusively on risk. In doing so, this policy change provided a unique opportunity to evaluate not only the impact of intensive supervision on recidivism but also whether risk-based policies lead to better outcomes. Using Cox regression and negative binomial regression on a sample of 1,818 persons released in 2018, we found that intensive supervised release (ISR) significantly reduced the hazard for general, felony, and violent reoffending. We also found, however, that ISR significantly increased the risk of a technical violation revocation. The findings from our cost–benefit analysis showed that, despite the relatively high costs it incurred, ISR was a cost-effective intervention because it reduced reoffending for those with a higher risk of committing serious, violent crimes.


2015 ◽  
Vol 105 (10) ◽  
pp. 2947-2985 ◽  
Author(s):  
Ian W. R. Martin ◽  
Robert S. Pindyck

Faced with numerous potential catastrophes—nuclear and bioterrorism, mega-viruses, climate change, and others—which should society attempt to avert? A policy to avert one catastrophe considered in isolation might be evaluated in cost-benefit terms. But because society faces multiple catastrophes, simple cost-benefit analysis fails: even if the benefit of averting each one exceeds the cost, we should not necessarily avert them all. We explore the policy interdependence of catastrophic events, and develop a rule for determining which catastrophes should be averted and which should not. (JEL D61, Q51, Q54)


2004 ◽  
Vol 44 (11) ◽  
pp. 1079 ◽  
Author(s):  
M. D. Rickard

The Australian Code of Practice for the Care and Use of Animals for Scientific Purposes requires Animal Ethics Committees to assess the merits of any research proposal involving the use of sentient animals. As part of that assessment they should make a judgment as to whether or not the costs to the welfare of the experimental animals are outweighed by the benefits of the predicted experimental outcome (i.e. conduct a cost–benefit analysis). This paper describes one approach that has been proposed to assist Animal Ethics Committees to take all factors into account when making this judgment. When agricultural animals are used in research the potential benefits are usually measured in terms of improved health and welfare or increased productivity when the research outcomes are applied to other animals reared in agricultural enterprises. When the aim of a project is to improve the health and welfare of the animals (i.e. ‘animal benefit’), the benefits are usually obvious and counting the cost is straightforward even if the impact on the animals under experimentation is quite extreme (e.g. death as an unavoidable endpoint in a vaccination experiment). Where the benefits accrue solely in terms of increased productivity or economic gain (i.e. ‘human benefit’), then balancing the costs and the benefits can be more problematical because people’s personal beliefs and their orientation towards animal welfare influence their assessment. Economists indicate that it is not increased productivity per se that generates value but consumption. Therefore, consumer perceptions of any adverse impact that gains in productivity have on the welfare of farmed animals can play a significant role in determining the ultimate benefit (value) of a particular piece of research with the sole aim to increase production and economic gain. This paper will explore some postulated relationships between productivity and animal welfare which could influence consumer preferences and hence the cost–benefit analysis.


2020 ◽  
Vol 8 (9) ◽  
pp. 636
Author(s):  
Chong-Ju Chae

If a ship’s hull or tank breaks, the ship may sink, or oil spills can cause enormous damage to the environment. If the ship is equipped with a capable, cost-effective oil or liquid flow stop emergency device, casualties and marine pollution could be reduced. Many magnetic-type liquid spill stop emergency devices developed since 1904 have limitations, such as difficulties with installation and impossibility of use during sailing. This study demonstrated the applicability of a magnetic-type liquid spill stop emergency device through tests for water pressure and leakage, attachment, magnetic fields, and the generation of sparks. Results showed that the device can be applied to the ship’s side hull and bottom with a specified minimum diameter at a pressure depth of 1.0 kg/cm2 while sailing at a speed of 18 kts (9.26 m/s). If the distance from the device was at least approximately 750 mm, the magnetic field had no effect, and there was no risk of explosion due to sparks. A cost–benefit analysis based on the International Maritime Organization-approved guidelines for formal safety assessment confirmed the cost effectiveness of the device. This experimental study confirmed that the magnetic liquid stop emergency device is generally applicable to a ship’s hull.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Lawrence A Gordon ◽  
Martin P Loeb ◽  
Lei Zhou

Abstract The National Institute for Standards and Technology (NIST) Cybersecurity Framework has rapidly become a widely accepted approach to facilitating cybersecurity risk management within organizations. An insightful aspect of the NIST Cybersecurity Framework is its explicit recognition that the activities associated with managing cybersecurity risk are organization specific. The NIST Framework also recognizes that organizations should evaluate their cybersecurity risk management on a cost–benefit basis. The NIST Framework, however, does not provide guidance on how to carry out such a cost–benefit analysis. This article provides an approach for integrating cost–benefit analysis into the NIST Cybersecurity Framework. The Gordon–Loeb (GL) Model for cybersecurity investments is proposed as a basis for deriving a cost-effective level of spending on cybersecurity activities and for selecting the appropriate NIST Implementation Tier level. The analysis shows that the GL Model provides a logical approach to use when considering the cost–benefit aspects of cybersecurity investments during an organization’s process of selecting the most appropriate NIST Implementation Tier level. In addition, the cost–benefit approach provided in this article helps to identify conditions under which there is an incentive to move to a higher NIST Implementation Tier.


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