Essays about: "Gompertz models"

Found 5 essays containing the words Gompertz models.

1. 1. Explorative Scenarios for Future Lithium Supplies and Demand

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Aksel Rahman; [2023]
   Keywords : lithium mining; lithium future production; Gompertz models; Richards models; Logistic models;

   Abstract : Because of its specific qualities, lithium is a key element for making lithium-ion batteries, which is of great relevance since the battery sector is the fastest growing user of lithium to date and with the transition towards a fully electrified transportation sector due to the current climate agenda and an even bigger increase in demand for lithium is anticipated for the coming decades. The two main sources for lithium to date are mines and brines, with brine water composing around 87 % of the world’s lithium reserves in terms of contained lithium. READ MORE

3. 2. Projections of future lithium production and implications for EU

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Wang Lei; [2021]
   Keywords : ;

   Abstract : Lithium-ion batteries (LIBs) are critical for the adoption of electrical vehicles vital for the electrification of road traffic as part of our fossil-fuel phasing out plan. This increasing demand for energy storage has expanded lithium production ten folds over the last 10 years and led to a new debate on the availability of lithium resources as well as sustainable challenges in resource exporting countries. READ MORE

4. 3. Comparison of mortality rate models for current health diseases

   University essay from Mälardalens högskola/Akademin för utbildning, kultur och kommunikation

   Author : Iván Araque Cristóbal; [2020]
   Keywords : Diseases; model; mortality rate; influenza; respiratory problems; Power-exponential; Gompertz; pollution; least squares method;

   Abstract : In this research, we compare different models, that are used to model the mortality rate curve, to model different deaths caused by certain diseases. In this comparison we increase the complexity of the models, starting with the Gompertz model, to later reduce the complexity fixing some parameters depending on the error. .. READ MORE

5. 4. The effect on mortality of having a Chief Executive Officer position: An analysis of Swedish data from 1997-2009

   University essay from Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

   Author : Anna Norrevik; Lennart Wang; [2013]
   Keywords : CEO; hazard ratio; life expectancy; mortality; survival analysis;

   Abstract : In this thesis, data on 203 702 CEOs in Sweden from the time period 1997 to 2009 is combined with death data and company information to compare CEOs' mortality between different groups. This study compares survival analysis results using Cox, Gompertz and GEE-logistic parametric models. READ MORE

6. 5. Peak Neodymium : Material Constraints for Future Wind Power Development

   University essay from Institutionen för geovetenskaper

   Author : Yiying Zhang; [2013]
   Keywords : Sustainable Development; Peak Neodymium; Renewable Energy; Material Constraint; Wind Power; China Policies;

   Abstract : Developing renewable alternatives for energy production is one of the main methods for climate change mitigation and sustainable development. As the key component in permanent magnets, neodymium is considered as one of the most critical elements in the rare earth family in the development of modern society. READ MORE