scholarly journals A Quick Estimate the Likely Total Infections and Deaths Due to COVID19 in Select Countries (Version April 1, 2020)

2020 ◽  
Author(s):  
Sebastian Morris
Keyword(s):  
Quick Estimate

scholarly journals Quick estimate of extreme floods water levels

2016 ◽  
Vol 7 ◽  
pp. 10007
Author(s):  
André Paquie ◽  
Christine Poulard ◽  
Jean-Baptiste Faure
Keyword(s):  
Water Levels ◽  
Extreme Floods ◽  
Quick Estimate

scholarly journals Implementing an Energy Calculator in a Mobile Based Application for Solar Potential Measurement

2018 ◽  
Vol 7 (3.6) ◽  
pp. 403
Author(s):  
S Mohana Krishnan ◽  
Saurav Rawat ◽  
M Surender ◽  
R Balakrishna ◽  
R Anandan
Keyword(s):  
Renewable Energy ◽  
Solar Radiation ◽  
Large Scale ◽  
Resource Assessment ◽  
Mobile App ◽  
Solar Photovoltaic ◽  
Energy Monitoring ◽  
Potential Measurement ◽  
Quick Estimate ◽  
Renewable Energy Generation

Solar photovoltaic (PV) technology has matured to become a technically viable large scale source of sustainable energy. Understanding the rooftop PV potential is critical for utility planning, accommodating grid capacity, deploying financing schemes and formulating future adaptive energy policies. The NIWE (National Institute of Wind Energy) under MNRE (Ministry of New and Renewable Energy) is an esteemed institute dedicated to Indian wind and solar renewable energy generation and monitoring. The SRRA (Solar Radiation and Resource Assessment) is a division under NIWE that is responsible for solar energy monitoring throughout India. They have created the Solar Radiation Map of India using high quality, ground measured solar data. This asks the question, whether it is possible to get a quick estimate of a solar installation. Thus, the paper explains the problems in the field of solar potential measurement and the deployment of a calculator in a mobile front platform. The mobile app would quickly and effortlessly give a rough estimate on what a solar installation could save in power consumption costs.  

Ship-Wave Impact Generated Sea Spray: Part 2 — Formulating Spray Frequency

2020 ◽  
Author(s):  
Shafiul A. Mintu ◽  
David Molyneux ◽  
Bruce Colbourne
Keyword(s):  
Field Measurements ◽  
Operating Conditions ◽  
Sea Spray ◽  
Ship Motions ◽  
Empirical Formulas ◽  
Wave Impact ◽  
Quick Estimate ◽  
Semi Empirical ◽  
Wave Induced ◽  
Analytical Expressions

Abstract In certain, but not all, circumstances a cloud of spray forms after a wave impacts a ship. The frequency of spray events affects the icing process. Previous spray frequency formulas are derived empirically from field observations considering only the ship’s forward speed and oceanographic conditions. The significance of various degrees of ship motions on the spray frequency is ignored. However in reality, the interrelationships of heave and pitch motions under wave actions together with surge motion determine the number of spray events that a ship may experience in a given period of time. This paper introduces a theoretical model for estimating the frequency of sea spray considering ship motions. Ship motions can be easily estimated by strip/panel methods. However, in this work, the aim was to develop a simple framework for a quick estimate of spray frequency. The model inputs are, therefore, restricted to ship’s principal particulars, its operating conditions, and the environmental conditions. The wave-induced motions are estimated by semi empirical analytical expressions. A novel spray threshold is developed to keep the deck wetness frequency separated from the spray frequency. The proposed spray frequency formula is validated against available full-scale field measurements from a Russian fishing vessel, MFV Narva, and reasonable agreement is found. Limitations of previous empirical formulas are also discussed.

Kamacite plate width estimation in octahedrites

1965 ◽  
Vol 35 (272) ◽  
pp. 640-642 ◽  
Author(s):  
M. J. Frost
Keyword(s):  
Quick Estimate ◽  
Plate Width

SummaryTables are given which enable a quick estimate to be made of the true thickness of kamacite plates from measurements of the Widmanstetter figure on a single random plane. The method is applied to the following meteorites (width in mm following name): Arispe, 2·90; Brenham, 0·91; Duketon, 1·13; Henbury, 0·74; Ogallala, 1·53; Thule, 0·89; View Hill, 0·62.

scholarly journals Facial aging: A clinical classification

2007 ◽  
Vol 40 (02) ◽  
pp. 178-180
Author(s):  
Melvin A Shiffman
Keyword(s):  
Aging Process ◽  
Facial Rejuvenation ◽  
Clinical Classification ◽  
Facial Aging ◽  
Clinical Method ◽  
Chemical Peels ◽  
The Face ◽  
Quick Estimate

ABSTRACTthe purpose of this classification of facial aging is to have a simple clinical method to determine the severity of the aging process in the face. this allows a quick estimate as to the types of procedures that the patient would need to have the best results. procedures that are presently used for facial rejuvenation include laser, chemical peels, suture lifts, fillers, modified facelift and full facelift. the physician is already using his best judgment to determine which procedure would be best for any particular patient. this classification may help to refine these decisions.

Long-term trends and variations in haze-related stagnation intensity in North China during 1980-2018

2020 ◽  
Author(s):  
Jin Feng
Keyword(s):  
Emission Reduction ◽  
North China ◽  
Current Trend ◽  
Low Frequency ◽  
Weather Conditions ◽  
Low Frequency Oscillation ◽  
Intensity Changes ◽  
Long Term Trends ◽  
Quick Estimate

<p>Recently, the climatological and environmental communities have paid significant attention to the long-term trends and variations in haze-related weather conditions in North China (NC). This study investigates the issue based on a quantified air stagnation index (ASI<sub>E</sub>) that combines the stagnation intensity with the background emissions, considering that haze occurrence strongly depends on the rate of emission. ASI<sub>E</sub> shows a close spatial and temporal relationship with the observed PM<sub>2.5</sub> concentrations, and a strong sensitivity to haze occurrence in NC. The change in ASI<sub>E</sub> revealed an approximate 19% increase in the annual stagnation intensity over the period of 1980-2018, due to significant decreases in PBLH and ventilation potency. The interannual variations in stagnation intensity were very significant. The percentage change of ASI<sub>E </sub>was as high as 50-70% in some years. However, there was an apparent drop in stagnation intensity during 2013-2018, which possibly contributed to the recently reported improvement in aerosol concentration in NC. It also shows that such low-frequency oscillation occurred twice during 1980-2018. Hence, once the current trend of decreasing stagnation intensity changes, haze events may become more common in the future. Finally, we present a quick estimate for the emission reduction ratio that can balance the variations and trend of stagnation intensity using a simple linear model, which can be used to evaluate the difficulty of the “clean air challenge” in NC. The results suggest that the enforcement of the emission reduction plan should be tailored according to the stagnation conditions in the case study year and region.</p>

A quick estimate of the strength of uniaxially tied framed structures

2009 ◽  
Vol 65 (8-9) ◽  
pp. 1763-1775 ◽  
Author(s):  
K.V. Spiliopoulos ◽  
T.N. Patsios
Keyword(s):  
Framed Structures ◽  
Quick Estimate
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