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Jose Gutierrez Lopez
Приєднався 10 гру 2012
Researcher. Following the path of water from soil, trees, atmosphere, and back, and its inherited connection with local and regional communities.
Analysis of tree cores for dendrochronology using FIJI-ImageJ
This video was made within the context of a Masters Class here at SLU-Umeå. The goal is also to show how to use FIJI to measure and count tree rings from various tree species.
I know, the video ended up being too long. But at least now you can watch at our own time. Let me know if you have any questions.
-JGL
I know, the video ended up being too long. But at least now you can watch at our own time. Let me know if you have any questions.
-JGL
Переглядів: 989
Відео
Sap flow sensor construction - assembling heater/temperature probes
Переглядів 3272 роки тому
This is the seventh part of a series of videos, were I show you how to make sensors to monitor sap flow. In this video, I show you how to assemble a heating (or temperature) probe. There are a lot of small details that need to be accounted for, specially if you build your sensors using hypodermic needles that need to be encased in some epoxy mold. Not thinking about these details, can result in...
Sap flow sensor construction - stretching heaters
Переглядів 882 роки тому
This is the sixth part of a series of videos, were I show you how to make sensors to monitor sap flow. In this video, I show how to stretch coiled heating elements. First important question: Do they need to be stretched? No. This is enameled wire, so there is really no need to do that. Why do they need to be stretched then? Well, that is part of the heating element design. You need to guarantee...
Sap flow sensor construction - heating elements - extra material
Переглядів 972 роки тому
This is the fifth part of a series of videos, were I show you how to make sensors to monitor sap flow. In this video, I show how to coil nichrome wire heaters, which is one of my favorite steps in the whole process to make sap flow sensors. The heater is coiled at 20 mm, and then stretched to 40 mm, but many other designs are possible. The sensor we build here, can be used with any method that ...
Sap flow sensor construction - heating elements
Переглядів 2112 роки тому
This is the fifth part of a series of videos, were I show you how to make sensors to monitor sap flow. In this video, I show how to coil nichrome wire heaters, which is one of my favorite steps in the whole process to make sap flow sensors. The heater is coiled at 20 mm, and then stretched to 40 mm, but many other designs are possible. The sensor we build here, can be used with any method that ...
Sap flow sensor construction - cutting wires
Переглядів 1332 роки тому
This is the second part of a series of videos, were I show you how to make sensors to monitor sap flow. In this video, I show two different ways to cut and strip small wires. Unfortunately, I could not recover the videos where I was scrapping the copper wires, but I hope the brief explanation is enough. The sensor can be used with any method that requires a heat pulse. The sensors are built usi...
Sap flow sensor construction - soldering thermocouples to connectors
Переглядів 1762 роки тому
This is the fourth part of a series of videos, were I show you how to make sensors to monitor sap flow. In this video, I show how to solder a series of Type-T thermocouples into an adapter/connector. This video had really bad audio quality, so I had to replace it... The main reason why I had to use connectors, is because deer (and perhaps people) kept pulling the cables, causing more equipment ...
Sap flow sensor construction - soldering thermocouples
Переглядів 1452 роки тому
Sap flow sensor construction - soldering thermocouples This is the third part of a series of videos, were I show you how to make sensors to monitor sap flow. In this video, I show how to solder Type-T thermocouples. The wires are too small, so I hope the quality is enough to see the details. This video had really bad audio quality, so I had to replace it... The sensor can be used with any metho...
Sap flow sensor construction - Rosin and flux
Переглядів 2642 роки тому
Some basic information regarding rosin and flux, that might be handy to some. Summary: Rosin: Basically pine sap, quite gentle. Flux: A combination of chemicals designed, among other things, to clean and transfer heat to soldering components. Take a close look at what they contain. Some have strong chemicals that can corrode metal. The field has moved quite fast, and some of this information mi...
Sap flow sensor construction - Needles
Переглядів 3362 роки тому
Sap flow sensor construction - Needles This is the first part of a series of videos, were I show you how to make sensors to monitor sap flow. The sensor can be used with any method that requires a heat pulse. The sensors are built using Type-T thermocouples, and use a nichrome wire as a heater. The field has moved quite fast, and some of this information might be outdated. However, I am very ce...
JMP Pro - Lo basico
Переглядів 2007 років тому
Este video es solamente un borrador, donde describo las partes básicas del programa JMP Pro La idea es hacer una serie de videos mas cortos, donde describa detalles del programa e.g., análisis de datos, guiones JSL, etc.
Stomatal density and length from leaf imprints using ImageJ
Переглядів 7 тис.11 років тому
Stomatal density and length from leaf imprints using ImageJ - a method for large databases Image version 1.47d This is a guide that will optimize the process of stomate measurement count for stomatal index and stomatal density. Pros: take all your images and process them in the commodity of your home Cons: I developed this method for Mac
Video has helped me out a bunch thank you so much for your time and effort
Good shit!
How to convert from pixel to micro meter
In what unit it will be there and what is the scale for stomatal length measurements
Hello Jose, You saved me a lot of time thanks...I have a small issue when deselecting the current slide with just a click on a slide option is not working. Can you pls help me out
You saved me, it's not easy to find help especific like this. Really thanks!