02 February 2017 2 8K Report

Can anyone suggest some textbooks about scientific instrument design？Thanks!

More Chao Shen's questions See All
About plasma temperature?

There are many definitions about plasma temperature, like electron temperature, ionization temperature, excitation temperature, atomic temperature, ionic temperature... What do they mean? I am...

31 December 2018 5,448 2 View

How to assemble micrometer-sized metallic particles on glass surface?

Hi everyone, I want to put some metallic particles with micrometer-sized (

08 September 2017 5,338 4 View

How to understand the physical image of polaron?

How to understand the physical image of polaron? I have searched it in wiki, but the concept is still hard to understand. Could anyone use some simple and easy to understand words to explain it?...

03 April 2017 9,591 4 View

What is the physical meaning of accuracy of the step motor?

I use a step motor-based x-y microscope stage. I notice the paprameters in the datasheet include repeatability, accuracy and step size. Let the physical location to be X, so I understand the step...

03 April 2017 5,091 0 View

How to get a high conversion effiency when using the BBO crystal for a 800nm fs laser (SHG process)?

I want to get 400nm from the 800nm laser using the BBO crystal, however, the conversion efficiency is quite low. In my case, the 800 nm pulse is with the rep. rate of 80MHz and average power of...

02 March 2017 6,157 20 View

In what case can the plasma be treated as the ideal gas?

In what case can the plasma be treated as the ideal gas? The plasma, more specifically, is induced during a laser ablation event.

10 November 2016 9,296 3 View

What is the bandgap of PbWO4?

what is the bandgap of PbWO4?

05 June 2016 1,741 3 View

What is coulombic screening?

what is coulombic screening? Any reference? Thanks!

10 November 2015 4,544 1 View

How to accurately measure a laser beam with a radius less than 1 micrometer (um)?

how to accurately measure a laser beam with a radius less than 1 micrometer (um)?

07 August 2015 779 0 View

What is Scanning photocurrent microscopy ?

what is Scanning photocurrent microscopy ? Any reference will be helpful, thank you!

05 June 2015 4,429 0 View

Similar questions and discussions
Problems about acousto-optic coupling in Comsol, how to check whether the moving mesh is correct?

I’m trying to reproduce the acousto-optic coupling simulation in the paper Frequency–angular resolving LiDAR using chip-scale acousto-optic beam steering. LNOI(lithium niobate on insulator) is...

13 August 2024 9,795 0 View

1. If I can quantize the atom using this hyperbolic spiral and classical physics, could nature do the same?

If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...

07 August 2024 5,343 2 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

Research Methodology - Impact of Corporate Reputation on Stakeholders Behaviors?

Please can anyone support with the survey questions based on RQ measures and propose how to do it in FMCG industry and include as well the role of brand equity Thanks

06 August 2024 949 0 View

Anyone having idea about VN primer for miRNA primer design ?

How to design VN primer to attach with universal reverse primer

05 August 2024 2,116 3 View

Who of all the Global Scientific community will help me Prof. Dr. Yoshida make way for TPEOM, MEC ~EMC to return the atmospheric gases to the norma ?

TEP presentation caption (The Environmental Project) Re: Why should Washington’s DC, or any country government point of location think of as nowadays of as to being 'tomorrow as to come! if it...

03 August 2024 2,484 1 View

Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

Hello! I have this scale which had 10 items initially. I had to remove items 8 and 10 because they correlated negatively with the scale, and then I removed item 9 because Cronbach's alpha and...

01 August 2024 4,606 7 View

Why 3 replicates for most biological assays? Is it enough to examine the data fits normal distribution?

Just bounced on me. Before statistically analysing significant difference, shouldn't we see if data fits normal distribution first? Is 3 replicates enough to testify the hypothesis of normal...

31 July 2024 8,141 13 View

Can a Conventional 50W visible LED Lamp Emit UV Light?

I'm researching light sources and their UV emissions. I'm curious if a 50W, 7500K conventional LED lamp emits any UV light. I found that a 200W tungsten lamp can emit up to 1.5 mW/cm² at 350 nm....

31 July 2024 3,843 7 View

Posthoc test lettering in JAMOVI?

Does anyone know of a module for the JAMOVI software that is capable of generating mean separations using the classic letters based on post hoc results (e.g., Tukey test)? If, as I believe, such...

31 July 2024 3,333 4 View

Our partners will collect data and use cookies for ad personalization and measurement. Learn how we and our ad partner Google, collect and use data. Agree & close