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Questions related from Carlos Alfredo Ugarte Alvan
In the book ‘Basic Principles and Calculations in Chemical Engineering’ by David M. Himmelblau, it is stated that in the context of nutrition, the calorie referred to in food is actually a...
13 October 2024 8,321 4 View
Hello everyone, I am familiar with the EPA's Cornell Mixing Zone Expert System (CORMIX), which is widely used for environmental impact assessments related to wastewater discharge. CORMIX offers...
05 October 2024 3,811 1 View
I've noticed that in Peru, the Integrated Risk Information System (IRIS) from the EPA is frequently used for risk assessment. Does anyone know if there is a similar platform used in Europe other...
27 September 2024 4,535 1 View
Hello everyone, I have a few questions regarding water sampling procedures in river environments, and I was wondering if there are any official protocols, guides, or documents that address these...
26 September 2024 2,471 4 View
When calibrating the pH sensor of a multiparameter device, is it advisable to immerse the sensor directly into the buffer solution, or should a portion of the solution be transferred into a beaker...
24 September 2024 9,020 4 View
When using a multiparameter device to measure dissolved oxygen, I’ve noticed that it takes a considerable amount of time for the sensor to stabilize and provide a fixed reading, especially when...
20 September 2024 1,764 3 View
Pouvez-vous me recommander des livres en français sur le bilan matière et énergie appliqué aux processus industriels dans un contexte environnemental selon la norme ISO 14001: 2015 ? Could you...
19 August 2024 8,465 1 View
To perform a Principal Component Analysis (PCA), it is generally necessary to have a dataset collected over several years. However, some laboratory analyses for certain parameters report results...
01 January 1970 2,222 0 View
1. What should be the dimensions of the matrix in PCA? 2. Should I always use the mean, or can I use the median or another measure of central tendency depending on the distribution? 3. Why are PCA...
01 January 1970 2,904 3 View
What regulatory restrictions apply to wastewater discharges into dry or intermittent streams?
01 January 1970 1,245 1 View
I am studying David M. Himmelblau's book on material and energy balances, and I'm finding it challenging to intuitively grasp the difference between extensive and intensive properties,...
01 January 1970 4,341 0 View