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Journal articles on the topic 'Flatten curve'

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Published: 5 June 2025
Last updated: 15 July 2025

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1

Wieland, Thomas. "Flatten the Curve!" REGION 7, no. 2 (2020): 43–83. http://dx.doi.org/10.18335/region.v7i2.324.

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Since the emerging of the "novel coronavirus" SARS-CoV-2 and the corresponding respiratory disease COVID-19, the virus has spread all over the world. Being one of the most affected countries in Europe, in March 2020, Germany established several nonpharmaceutical interventions to contain the virus spread, including the closure of schools and child day care facilities (March 16-18, 2020) as well as a full "lockdown" with forced social distancing and closures of "nonessential" services (March 23, 2020). The present study attempts to analyze whether these governmental interventions had an impact on the declared aim of "flattening the curve", referring to the epidemic curve of new infections. This analysis is conducted from a regional perspective. On the level of the 412 German counties, logistic growth models were estimated based on daily infections (estimated from reported cases), aiming at determining the regional growth rate of infections and the point of inflection where infection rates begin to decrease and the curve flattens. All German counties exceeded the peak of new infections between the beginning of March and the middle of April. In a large majority of German counties, the epidemic curve has flattened before the "lockdown" was established. In a minority of counties, the peak was already exceeded before school closures. The growth rates of infections vary spatially depending on the time the virus emerged. Counties belonging to states which established an additional curfew show no significant improvement with respect to growth rates and mortality. Furthermore, mortality varies strongly across German counties, which can be attributed to infections of people belonging to the "risk group", especially residents of retirement homes. The decline of infections in absence of the "lockdown" measures could be explained by 1) earlier governmental interventions (e.g., cancellation of mass events, domestic quarantine), 2) voluntary behavior changes (e.g., physical distancing and hygiene), 3) seasonality of the virus, and 4) a rising but undiscovered level of immunity within the population. The results raise the question whether formal contact bans and curfews really contribute to curve flattening within a pandemic.
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2

Brian, Éric. "“Flatten the Curve!” But Which Curve?" Histoire & mesure XXXV, no. 2 (2020): 233–46. http://dx.doi.org/10.4000/histoiremesure.13544.

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3

JOHNSON, KATE. "Robotics Can Flatten Laparoscopy Learning Curve." Internal Medicine News 38, no. 8 (2005): 63. http://dx.doi.org/10.1016/s1097-8690(05)70422-4.

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4

Lewiss, Resa E., and Reshma Jagsi. "Gender Bias: Another Rising Curve to Flatten?" Academic Medicine 96, no. 6 (2021): 792–94. http://dx.doi.org/10.1097/acm.0000000000003987.

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5

Tentolouris, Anastasios, Ioannis Ntanasis-Stathopoulos, Panayotis K. Vlachakis, Diamantis I. Tsilimigras, Maria Gavriatopoulou, and Meletios A. Dimopoulos. "COVID-19: time to flatten the infodemic curve." Clinical and Experimental Medicine 21, no. 2 (2021): 161–65. http://dx.doi.org/10.1007/s10238-020-00680-x.

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6

Blake, Sarah. "Diabetes: is it time to flatten the curve?" British Journal of General Practice 71, no. 705 (2021): 174. http://dx.doi.org/10.3399/bjgp21x715481.

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7

Karthikeyan, Padmanabhan, Nikhil Sivanand, and Neelima Vijayan. "Coronavirus Disease-19 Pandemic: How to Flatten the Curve?" SBV Journal of Basic, Clinical and Applied Health Science 3, no. 2 (2020): 90–92. http://dx.doi.org/10.5005/jp-journals-10082-02244.

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8

Qumari, Mohd Aleemuddin, Farooqui Shazia Parveen, Md Anzar Alam, and Mariyam Ahad. "Chronology of COVID-19 Pandemic – the Un-flatten Curve." International Journal of Pharma Sciences and Research 11, no. 5 (2020): 87–96. http://dx.doi.org/10.21817/ijpsr/2020/v11i5/201103025.

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9

Navsaria, Pradeep, Sithombo Maqungo, Lea Marineau, Megan Prinsloo, Itumeleng J. Molefe, and Peter Hodkinson. "firearm pandemic: time to act and flatten the curve." South African Medical Journal 113, no. 3 (2023): 113–14. http://dx.doi.org/10.7196/samj.2023.v113i3.316.

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10

Jenson, Hal B. "How did “flatten the curve” become “flatten the economy?” A perspective from the United States of America." Asian Journal of Psychiatry 51 (June 2020): 102165. http://dx.doi.org/10.1016/j.ajp.2020.102165.

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11

Zakaria, Dimas, and Rr Halimatu Hira. "Pandemi Covid-19: Flattening The Curve, Kebijakan dan Peraturan." Vox Populi 3, no. 1 (2020): 1. http://dx.doi.org/10.24252/vp.v3i1.14077.

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Kurva epidemologi (epidemic curve) yang menjadi parameter untuk menangani wabah virus corona, yaitu dengan melandaikan kurva penyebaran (flatten the curve) dapat dilakukan dengan meningkatkan jumlah kesembuhan pada pasien dan pemberlakukan kebijakan dan peraturan dalam upaya membatasi jarak antar manusia. Kebijakan dan peraturan yang saat ini berlaku di Indonesia dinilai perlu diberi gagasan baru yang inovatif, jelas, dan konsisten. Melalui Flattening the Curve (FtC), dapat menjadi alternatif solusi program yang tepat dalam menangangi pandemi dengan tujuan untuk melandaikan kurva penyebaran. Program yang berisi dua substansi kebijakan, yaitu: healthy policy, program dalam rangka meningkatkan jumlah kesembuhan pasien yang terdiri atas deteksi virus berskala besar. Psychological service, pemberian layanan check up, dan expert role. Program kedua berupa pembuatan kebijakan dan peraturan (legal action) yang jelas dan konsisten untuk memberi kepastian hukum kepada masyarakat yang memperhatikan unsur-unsur kejelasan (legal substance), ketegasan (legal structure), dan peran masyarakat dalam wujud budaya hukum (legal culture). Dengan demikian, melalui program ini upaya pemerintah dalam melandaikan kurva penyebaran (flatten the curve) dapat berjalan dengan baik.
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12

Tambyah, Paul Ananth. "Strategies to flatten the curve: Current evidence and practical pitfalls." International Journal of Antimicrobial Agents 58 (September 2021): 21002260. http://dx.doi.org/10.1016/j.ijantimicag.2021.106420.4.

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13

Amidon, Timothy R., Alex C. Nielsen, Ehren H. Pflugfelder, Daniel P. Richards, and Sonia H. Stephens. "Visual Risk Literacy in “Flatten the Curve” COVID-19 Visualizations." Journal of Business and Technical Communication 35, no. 1 (2020): 101–9. http://dx.doi.org/10.1177/1050651920963439.

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This article explores how “flatten the curve” (FTC) visualizations have served as a rhetorical anchor for communicating the risk of viral spread during the COVID-19 pandemic. Beginning from the premise that risk visualizations have eclipsed their original role as supplemental to public risk messaging and now function as an organizer of discourse, the authors highlight three rhetorical tensions (epideictic–deliberative, global–local, conceptual metaphors–data representations) with the goal of considering how the field of technical and professional communication might more strongly support visual risk literacy in future crises.
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14

Singh, Gajendra. "Continuity of Antenatal Care Services in Chhattisgarh during COVID19." Community Medicine and Public Health Care 8, no. 1 (2021): 1–8. http://dx.doi.org/10.24966/cmph-1978/100078.

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15

Jorstad, H. T., and J. J. Piek. "Physical inactivity in times of a pandemic: another curve to flatten." Netherlands Heart Journal 29, no. 5 (2021): 241–42. http://dx.doi.org/10.1007/s12471-021-01576-5.

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16

Bobrowski, Tesia, Cleber C. Melo-Filho, Daniel Korn, et al. "Learning from history: do not flatten the curve of antiviral research!" Drug Discovery Today 25, no. 9 (2020): 1604–13. http://dx.doi.org/10.1016/j.drudis.2020.07.008.

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17

Choi, Sangbong, Changsoo Kim, and Backsub Sung. "V2G Strategies to Flatten the Daily Load Curve in Seoul, South Korea." Applied Sciences 13, no. 18 (2023): 10392. http://dx.doi.org/10.3390/app131810392.

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In order to meet the increasing demand for electricity to maintain electric vehicles (EVs) worldwide, this paper aims to improve our understanding of the impact of the load on the power grid generated by the charging and discharging of electric vehicles. The rapid development of the electric vehicle (EV) industry offers new economic and environmental benefits, such as mitigating global warming by reducing carbon dioxide. On the other hand, however, we will face the reality that the emergence of such large-scale EVs will undoubtedly put additional strain on the power grid. In this context, solving the problem of excessive power usage associated with charging large electric vehicles and reducing the impact on the grid is paramount. Accordingly, in order to meet the increasing demand for electricity to maintain electric vehicles (EVs) worldwide, this paper aims to improve our understanding of the impact of the load on the power grid generated by the charging and discharging of electric vehicles. A V2G strategy is presented with the goal of flattening the daily load curve by considering the charge and the discharge positions of EVs. First, in this paper, based on the estimated share of electric vehicles, we set the assumption that EVs travel to work in the morning and leave work in the afternoon. Second, we develop an efficient V2G strategy to equalize the daily load curve due to charging and discharging of electric vehicles in Seoul by applying a system marginal price (SMP) and time-of-use (TOU) rate system. The EV charging/discharging load and existing load using V2G modeling are added up, all daily load curves are calculated and analyzed based on the 2030 and 2040 EV share scenarios for Seoul, and the grid load is leveled. The analysis suggests measures to minimize the impact of EV loads on the power grid according to the V2G strategy based on charging and discharging plans. Overall, this paper aims to smooth the grid’s daily load curve and avoid grid overload by applying appropriate SMP and TOU plans; we also present an efficient V2G strategy, established through charge and discharge modeling and EV charge and discharge management techniques, in order to minimize grid expansion.
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18

Ibrahim, Nur Aifiah. "Flattening The Epidemic Curve from a Statistical and Epidemiological Approach in Malaysia." Berkala Kedokteran 19, no. 1 (2023): 107. http://dx.doi.org/10.20527/jbk.v19i1.15724.

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Abstract: Epidemic curves will help decision-makers and the public to give a picture and pattern of the outbreak. It will create a path to explore the epidemiology of Covid-19. One of the highlights is the onset of illness. One of the approaches is to track the progression of Covid-19 in Malaysia. In Malaysia, the numbers and figures began to convey a message about the epidemic progression and put in efforts to stop the pandemic. The disease pattern grows exponentially. Hence, proper lines of rapid strategies are there to flatten the curve.
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19

Boughton, Charlotte K., and Roman Hovorka. "Can exenatide flatten the post-prandial glucose curve in type 1 diabetes?" Annals of Translational Medicine 8, no. 22 (2020): 1535. http://dx.doi.org/10.21037/atm-20-3654.

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20

Schepers, Tim. "Pandemic Lockdown Does Not Flatten the Curve of Complex Foot Ankle Injuries." Journal of Foot and Ankle Surgery 59, no. 5 (2020): 878. http://dx.doi.org/10.1053/j.jfas.2020.06.006.

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21

Haroon, Omair, and Syed Aun R. Rizvi. "Flatten the Curve and Stock Market Liquidity – An Inquiry into Emerging Economies." Emerging Markets Finance and Trade 56, no. 10 (2020): 2151–61. http://dx.doi.org/10.1080/1540496x.2020.1784716.

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22

Santos, Joost. "Reflections on the impact of “flatten the curve” on interdependent workforce sectors." Environment Systems and Decisions 40, no. 2 (2020): 185–88. http://dx.doi.org/10.1007/s10669-020-09774-z.

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23

Mukil P Sunil, Abilasha R, and Preetha S. "Flattening the Covid-19 curve: A myth or reality - A questionnaire based study." International Journal of Research in Pharmaceutical Sciences 11, SPL1 (2020): 602–8. http://dx.doi.org/10.26452/ijrps.v11ispl1.2859.

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Flattening the curve is a public health strategy to slow down the spread of SARS- COV - 2 viruses during the covid--19 pandemics. The study aims to assess the knowledge and create awareness of flattening the COVID- 19 curves. A survey-based questionnaire was done to create understanding about 'flattening the curve'. A total of of 12 questions were collected by google forms app.SPSS statistical analysis was done. The results were obtained, and the data was analysed. The overall awareness of all subgroups was fair in reporting correct answers. People of the 15-25 age groups mostly attended the survey. (50.7%).71% of the respondents were males. In this study, almost 71% of the respondents were aware of the covid-19 curve. Nearly 54% of the respondents believed that community transmission is increasing in their area.71% of the respondents found lockdown can affect India's economic capital.71% believed lockdown implemented in India is effective.55.5% of the respondents thought that India is flattening the curve. Hence, the study concludes that the participants have awareness about the measures taken to flatten the COVID - 19 curves.
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24

Coria, Gustavo E., Angel M. Sanchez, Ameena S. Al-Sumaiti, Guiseppe A. Rattá, Sergio R. Rivera, and Andrés A. Romero. "A Framework for Determining a Prediction-Of-Use Tariff Aimed at Coordinating Aggregators of Plug-In Electric Vehicles." Energies 12, no. 23 (2019): 4487. http://dx.doi.org/10.3390/en12234487.

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The objective of this article is to propose a framework for defining a day-ahead prediction-of-use tariff (POU) that promotes aggregators of the plug-in electric vehicles (PEVs) to operate as closely as possible to an optimal charging curve previously calculated by the distribution system operator (DSO). The DSO calculates this optimal charging curve to flatten the load curve of the distribution transformers as much as possible by coordinating the daily recharging of PEVs. The objective is to establish the optimal power profile of the PEV aggregators needed to flatten the power curve supplied by the transformer, so that PEV customers’ needs can be met throughout the day. The proposed framework is applied in a case study accounting for uncertainties associated with charging through Monte Carlo simulation, in order to find the POU tariff. The results demonstrate that applying the POU tariff determines the transformer’s minimum power limit necessary to meet all PEV users’ needs. Additionally, the day-ahead POU tariff does not generate new demand peaks, since it does not concentrate the energy supply of flexible loads in pre-established time bands. Finally, simulation reflects the significant effect of the PEV charging on the distribution system in terms of enhancing the voltage profile, maximizing the transformer life, and reducing the power/energy losses.
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25

Iskander, John K., and Alex E. Crosby. "Implementing the national suicide prevention strategy: Time for action to flatten the curve." Preventive Medicine 152 (November 2021): 106734. http://dx.doi.org/10.1016/j.ypmed.2021.106734.

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26

Killeen, Gerry. "Containment strategies for the 2019 Novel Coronavirus: flatten the curve or crush it?" European Journal of Epidemiology 35, no. 8 (2020): 789–90. http://dx.doi.org/10.1007/s10654-020-00656-x.

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27

Razavi-Shearer, Devin, Ivane Gamkrelidze, Kathryn Razavi-Shearer, Alexis Voeller, Samantha Hall, and Homie Razavi. "WED-448 Peak mortality is on the horizon: will we flatten the curve?" Journal of Hepatology 80 (June 2024): S667—S668. http://dx.doi.org/10.1016/s0168-8278(24)01916-0.

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28

López García, Dahiana, José David Beltrán Gallego, and Sandra Ximena Carvajal Quintero. "Proposing Dynamic Pricing as an Alternative to Improve Technical and Economic Conditions in Rural Electrification: A Case Study from Colombia." Sustainability 15, no. 10 (2023): 7985. http://dx.doi.org/10.3390/su15107985.

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Electricity access in rural areas is a critical challenge for global electrification. Most countries have focused on increasing electricity coverage without assessing the long-term sustainability of such solutions. To achieve sustainability in rural electrification solutions, it is necessary to consider five dimensions: technical, environmental, economic, social, and institutional. This paper reviews the state of rural electrification worldwide and proposes a dynamic tariff scheme that increases the technical and economic conditions of implemented solutions over an extended period. The proposed time-of-use (TOU) pricing methodology aims to flatten the system demand curve and utilize on-site renewable energy potentials. For the methodology’s evaluation, we analyzed a case study focused on electrification in isolated areas of Colombia, conducting a sensitivity analysis of user-behavior to the proposed tariff scheme using the concept of price elasticity of demand. We also evaluated the effect of the achieved demand curve flattening on the system frequency. The identified benefits highlight that an accurate pricing scheme can reduce the variation range in the system frequency. Furthermore, the evaluation results show that the implementation of the proposed tariff scheme has the potential to significantly flatten the demand curve and encourage the connection of non-conventional renewable sources to improve network conditions.
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29

Dutta, Goutam. "COVID-19 LOCKDOWN RELATED DEPRESSION AND IMMUNE SUPPRESSION: IMPACT ON HUMAN RESOURCE AND INDIAN ECONOMY." ENSEMBLE SP-1, no. 1 (2021): 1–10. http://dx.doi.org/10.37948/ensemble-2021-sp1-a001.

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Unanimously lockdown is the most scientific way to flatten the curve of COVID-19. But, lockdown has the negative influence on social, psychological, physiological and economical aspects of life as well. Under this health emergency situation, the depression is playing its role as silent killer on immune suppression. Physiologically the immune suppressed people are more prone to any viral infection like COVID-19. Moreover, there are so many adverse effects of depression on our health. Therefore, it is a challenge to minimize the depression related immune suppression caused by the pandemic of Covid-19. The Government of India should admit the truth of physiology in the light of depression related to immune suppression during the lockdown period. Without the sweat of healthy human resources, money cannot reform Indian economy. Therefore, many anti-depressant strategies have to be taken by the Government to minimize the psychological depression linked directly with the health of human resources. Therefore, this is the high time to think positively about the anti-depressant strategies to minimize and flatten the curve of COVID-19 in future.
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30

Nguyen Quoc Minh, Nguyen Duy Linh, Nguyen Trong Khiem, Tran Huu Quynh, Pham Tuan Nghia, and Bui Minh Quan. "Optimization models to flatten duck curve in power grid with high penetration of solar energy." Journal of Military Science and Technology 91 (November 25, 2023): 45–53. http://dx.doi.org/10.54939/1859-1043.j.mst.91.2023.45-53.

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Currently, renewable energy sources are becoming increasingly popular worldwide as an alternative to reduce dependence on traditional energy sources, especially clean energy such as solar and wind energy. However, with a high level of solar energy integrated into the grid, operators are dealing with a new problem that can be visualized as the “duck curve”, when the solar energy production is high and the demand are low. In this paper, optimal MIQP models with two different objective functions to overcome the duck curve is introduced. The models are evaluated in the California power grid (CAISO), where the penetration of solar energy is significant. The results show that the battery energy storage system can help to reduce the ramp rate of the duck curve up to 57.6%.
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31

Fuss, Franz Konstantin, Adin Ming Tan, and Yehuda Weizman. "Retrospective Evaluation of the Effectiveness of COVID-19 Control Strategies Implemented by the Victorian Government in Melbourne—A Proposal for a Standardized Approach to Review and Reappraise Control Measures." COVID 3, no. 8 (2023): 1063–78. http://dx.doi.org/10.3390/covid3080078.

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In evaluating the effectiveness of COVID-19 control measures, we propose a standardized approach to assess the impact of COVID-19 management on flattening the curve by analyzing the case data of Victoria, Australia. Its capital, Melbourne, is considered the most lock-downed city in the world. We used the daily case data from Victoria and their first time derivative and compared the dates when the six lockdowns were imposed with the start and end of the effective period, i.e., the period between the maximum and minimum acceleration. Lockdowns 1, 2 (Level 4 restrictions), 3, and 4 were found to be implemented too late, as they were expected to come into effect at the end or after the effective phase, and they were therefore ineffective. It was determined that Lockdown 2 (Level 3 restrictions) did not initiate the effective phase, and it was therefore ineffective, too. Lockdown 5 was expected to take effect in the second half of the effective phase, but showed no changes in the acceleration curve, and it was therefore also ineffective. Lockdown 6, implemented well before the effective period, did not flatten the curve, and was thus also found to be ineffective. The mask mandate between Lockdown 2 (Level 3 and 4 restrictions) initiated the effective phase (likely along with Lockdown 2, Level 3 restrictions), and was therefore found to effectively flatten the curve. The temporal relationship between the assumed cause (control measure) and the observed effect (flattening of the curve) is thus a crucial parameter for assessing the effect of control measures.
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32

Stevenson, Struan. "Probing the Disk Kinematics of M31 with DESI." Edinburgh Student Journal of Science 1, no. 2 (2024): 5–9. http://dx.doi.org/10.2218/esjs.9976.

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M31’s stellar rotation curve and disk line-of-sight dispersion is presented using kinematic data from a novel DESI M31 survey in combination with similar datasets. After removing the foreground, the disk region is isolated and the velocity field deprojected. A flat ring model is fit to the velocity field of M31 out to 30 kpc using a maximum-likelihood routine. The stellar rotation curve is found to flatten to ∼220 km/s, and a disk line-of-sight velocity dispersion of ∼60 km/s is derived. The results extend M31’s rotation curve to 30 kpc and support the picture in which M31 has thicker disk than the Milky Way.
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33

Pichler, Stefan, Katherine Wen, and Nicolas R. Ziebarth. "COVID-19 Emergency Sick Leave Has Helped Flatten The Curve In The United States." Health Affairs 39, no. 12 (2020): 2197–204. http://dx.doi.org/10.1377/hlthaff.2020.00863.

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34

Seydl, Joe, and Malcolm Spittler. "Did globalization flatten the Phillips curve? U.S. consumer price inflation at the sectoral level." Journal of Post Keynesian Economics 39, no. 3 (2016): 387–410. http://dx.doi.org/10.1080/01603477.2016.1200951.

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35

Marques, Luana, Anna D. Bartuska, Jonah N. Cohen, and Soo Jeong Youn. "Three steps to flatten the mental health need curve amid the COVID‐19 pandemic." Depression and Anxiety 37, no. 5 (2020): 405–6. http://dx.doi.org/10.1002/da.23031.

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36

Papadakis, I. E., and I. M. McHardy. "Long Term X-ray Variability of NGC 4151." Symposium - International Astronomical Union 159 (1994): 402. http://dx.doi.org/10.1017/s0074180900175916.

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Short time scale X-ray power spectra of AGN are in general well fitted by a power law with slopes between −1 and −2 but we expect these slopes to flatten at low frequencies (indication of such a flattening has already been seen in NGC 5506). We have searched for such a low-frequency break in the power spectrum of NGC 4151 by investigating its long term X-ray light curve (2–10 keV). To construct this light curve we used Ariel V SSI, OSO-8, HEAO-1, Ariel VI, EXOSAT ME and GINGA LAC data.
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37

Hvozdenska, Jana. "The relationship of bond yield curves and gross domestic product growth in Scandinavia." New Trends and Issues Proceedings on Humanities and Social Sciences 4, no. 10 (2018): 398–405. http://dx.doi.org/10.18844/prosoc.v4i10.3110.

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The steepness of the bond yield curve is an excellent indicator of a possible future economic activity. A rise in the short rate tends to flatten the yield curve and slows down real growth in the near-term. This paper analyses the dependence between slope of the yield curve and an economic activity of selected countries between 2000 and 2016. The slope of the yield curve can be measured as the yield spread between sovereign 10-year and 3-month bonds. The results showed that the best predictive lags are the lag of four and five quarters. The results also confirm that 10-year and 3-month yield spread has a significant predictive power for real GDP growth after a financial crisis. These findings can benefit investors and provide evidence of the potential usefulness of the yield curve spreads as indicators of the future economic activity. Keywords: GDP prediction, yield curve, slope, spread.
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38

Nair, AkshayGopinathan. "“Am I audible? Are my slides visible?” – Do we need to flatten the webinar curve?" Indian Journal of Ophthalmology 68, no. 11 (2020): 2341. http://dx.doi.org/10.4103/ijo.ijo_3038_20.

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39

Thunström, Linda, Stephen C. Newbold, David Finnoff, Madison Ashworth, and Jason F. Shogren. "The Benefits and Costs of Using Social Distancing to Flatten the Curve for COVID-19." Journal of Benefit-Cost Analysis 11, no. 2 (2020): 179–95. http://dx.doi.org/10.1017/bca.2020.12.

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AbstractWe examine the net benefits of social distancing to slow the spread of COVID-19 in USA. Social distancing saves lives but imposes large costs on society due to reduced economic activity. We use epidemiological and economic forecasting to perform a rapid benefit–cost analysis of controlling the COVID-19 outbreak. Assuming that social distancing measures can substantially reduce contacts among individuals, we find net benefits of about $5.2 trillion in our benchmark case. We examine the magnitude of the critical parameters that might imply negative net benefits, including the value of statistical life and the discount rate. A key unknown factor is the speed of economic recovery with and without social distancing measures in place. A series of robustness checks also highlight the key role of the value of mortality risk reductions and discounting in the analysis and point to a need for effective economic stimulus when the outbreak has passed.
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40

M.A., Kashin, Novikov N.L., and Novikov A.N. "The Use of Energy Storage to Improve Controllability and Security of the Belarusian Power System." Energy Systems Research 6, no. 3(23) (2023): 28–35. http://dx.doi.org/10.25729/esr.2023.03.0003.

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The planned commissioning of the second unit of the Astravets nuclear power plant in the Republic of Belarus in 2023 will exacerbate the need to ensure controllability and security of both the entire Belarusian power system and its individual power generation centers. To address this issue effectively, it is crucial to flatten the load curves of electricity consumers, and energy storage systems (ESS) make this achievable. The Belarusian power system can use several types of ESSs, both system-wide and local. Li-ion-based ESSs have the best performance when used to smooth the load curves of individual substations. This paper assesses the efficiency of lithium-ion energy storage units. The assessment focuses on various factors such as leveling of the daily load curve of the consumer, decrease in power loss, and voltage regulation at the ESS installation site.
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Kučer, Luka, Denis Alajbeg, and Tomislav Kesić. "Yield Curve and S&P Returns." International journal of contemporary business and entrepreneurship 5, no. 1 (2024): 36–53. https://doi.org/10.47954/ijcbe.5.1.3.

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The objective of this paper was to explore the predictive power of the US Treasury yield curve spread for subsequent short- to medium term S&P 500 returns (holding periods of 1-36 months), over the past 35 years. Stock returns were lowest (and even negative) when the yield curve inverted, especially if the spread was increasing - a situation that usually coincided with monetary policy changing from restrictive to expansionary (the so-called “Fed pivot”). On the other hand, a positive yield curve was typically followed by positive stock returns in mostly all examined holding periods. The highest average returns were recorded when the yield curve was normal and the spread decreasing – i.e., when the economic and stock market recovery was well underway and when the steep yield curve gradually started to flatten and normalize. Regression analysis indicated that, in the short-term, yield curve spreads and stock market returns are uncorrelated, but also that the relationship strengthened in longer time frames (although only to moderate levels). In this regard, using the 12-month MA spread instead of the current spread is perhaps worth further investigating, since it produced more consistent and statistically significant returns (especially for time frames of 12 months and longer).
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Wang, Shicheng, Junhu Yang, and Guobin Xu. "Influence of Positive Guide Vane Geometric Parameters on the Head-Flow Curve of the Multistage Pump as Turbine." Processes 11, no. 12 (2023): 3393. http://dx.doi.org/10.3390/pr11123393.

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In order to reduce the impact of production changes on the performances of pumps as turbines (PATs) in the process industry, it is imperative to lessen head variations at different mass flow rates. This study established a relationship equation between theoretical head and geometric parameters for multistage PATs. The influence of these parameters on the flatness of the head-flow (H-Q) curve was determined through derivation methods. The original PAT was a two-stage pump, and 12 PAT models were designed by modifying the geometric parameters of the positive guide vanes. Fluent software was employed for numerical simulations. The study found that numerical calculations aligned well with theoretical derivations for the flat H-Q curve. Considering the geometric variations in the positive guide vane, increasing the outlet placement angle, blade number, and throat area or decreasing the base circle diameter was able to flatten the H-Q curve effectively; at the best efficiency point, the throat area had the most significant impact on a slope, followed by the outlet placement angle, blade number, and base circle diameter, respectively. The individual contributions to reducing the slope were 0.53, 0.24, 0.1, and 0.09. In terms of the best efficiency point (BEP) of PATs, increasing the throat area appropriately was able to improve the BEP of the PAT by around 1.65% and shifted its BEP towards higher flow rates. However, in other cases, the BEPs all decreased. Increasing the outlet placement angle of the positive guide vane by 3° led to the BEP being reduced by 0.79%. When the number of positive guide vane blades was increased from 8 to 10, the BEP decreased by 1.24%. When the diameter of the base circle of the positive guide vane was decreased, the BEP of the turbine decreased by 0.06%. This study provides theoretical support and can serve as a reference for the design of multistage hydraulic turbines with flatter H-Q curves.
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Amiruzzaman, Md, M. Abdullah-Al-Wadud, Rizal Mohd Nor, and Normaziah A. Aziz. "Evaluation of the Effectiveness of Movement Control Order to Limit the Spread of COVID-19." Annals of Emerging Technologies in Computing 4, no. 4 (2020): 1–9. http://dx.doi.org/10.33166/aetic.2020.04.001.

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This study presents a prediction model based on Logistic Growth Curve (LGC) to evaluate the effectiveness of Movement Control Order (MCO) on COVID-19 pandemic spread. The evaluation assesses and predicts the growth models. The estimated model is a forecast-based model that depends on partial data from the COVID-19 cases in Malaysia. The model is studied on the effectiveness of the three phases of MCO implemented in Malaysia, where the model perfectly fits with the R2 value 0.989. Evidence from this study suggests that results of the prediction model match with the progress and effectiveness of the MCO to flatten the curve, and thus is helpful to control the spike in number of active COVID-19 cases and spread of COVID-19 infection growth.
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Bhatnagar, Paras, Shivendra Kaura, and Sanjeev Rajan. "Predictive Models and Analysis of Peak and Flatten Curve Values of CoVID-19 Cases in India." Evergreen 7, no. 4 (2020): 458–67. http://dx.doi.org/10.5109/4150465.

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Punia, Vineet. "Modifiable Risk Factors of Dementia in Older Adults With Epilepsy: An Opportunity to Flatten the Curve?" Epilepsy Currents 21, no. 3 (2021): 162–64. http://dx.doi.org/10.1177/15357597211002870.

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Alan, Nima, Jared J. Kanter, Lauren Puccio, Sharath Kumar Anand, and Adam S. Kanter. "Transitioning from lateral to the prone transpsoas approach: flatten the learning curve by knowing the nuances." Neurosurgical Focus: Video 7, no. 1 (2022): V8. http://dx.doi.org/10.3171/2022.3.focvid2224.

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Prone transpsoas lateral lumbar interbody fusion is the newest frontier in surgical approach to the lumbar spine. Prone positioning facilitates segmental lordosis and facile posterior segmental fixation. However, even in experienced hands, transitioning from a lateral decubitus to prone position necessitates alterations to the traditional technique. In this video, the authors highlight the nuances of adopting the prone transpsoas lateral lumbar interbody fusion technique and strategies to overcome them. The video can be found here: https://stream.cadmore.media/r10.3171/2022.3.FOCVID2224
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Bhatnagar, Paras, Shivendra Kaura, and Sanjeev Rajan. "Predictive Models and Analysis of Peak and Flatten Curve Values of CoVID-19 Cases in India." Evergreen 7, no. 4 (2020): 458–67. http://dx.doi.org/10.5109/4150465.

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O’Rourke, Thomas W. "Applying the Concepts of “Community Spread” and “Flatten the Curve” to Chronic Conditions and Their Prevention." American Journal of Health Education 51, no. 4 (2020): 199–202. http://dx.doi.org/10.1080/19325037.2020.1766605.

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Saez, Marc, Aurelio Tobias, Diego Varga, and Maria Antònia Barceló. "Effectiveness of the measures to flatten the epidemic curve of COVID-19. The case of Spain." Science of The Total Environment 727 (July 2020): 138761. http://dx.doi.org/10.1016/j.scitotenv.2020.138761.

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Block, Per, Marion Hoffman, Isabel J. Raabe, et al. "Social network-based distancing strategies to flatten the COVID-19 curve in a post-lockdown world." Nature Human Behaviour 4, no. 6 (2020): 588–96. http://dx.doi.org/10.1038/s41562-020-0898-6.

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