Half, average & most probable lives of tungsten filament lamps are exactly same. What one can infer from the view of physics, statistics, technology..

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The 'Hydrobalance" is an improved version of Nicholson's Hydrometer for finding relative density. Is there another device known in the literature?

The author has designed a device known as Hydrobalance published in the American Journal Physics: The hydrobalance

10 November 2018 4,893 0 View

Is there a simple formula for estimating apparent or absolute magnitude of solo stars in terms of its radius, photosphere temperature and distance?

Please see the following publication for details. Apparent and Absolute Magnitudes of Stars: A Simple Formula

03 April 2018 6,333 1 View

Photosynthetic solar constant may be adopted in teaching rate of plant growth, estimating crop yield, solar power going into photosynthesis and so on?

This is a suggestion based on my paper Photosynthetic Solar Constant https://www.researchgate.net/publication/41822989_Photosynthetic_Solar_constant

08 September 2017 4,048 3 View

I have proposed in a paper that moment of inertia of a fundamental particle is β(ℏ^2⁄(mc^2 )); β≡Dirac operator. Can someone suggest its application?

This observation is based on analogy. Please see the following two publications. 1. Inertia of fundamental particles on the basis of...

04 May 2017 3,273 4 View

Tungsten incandescent lamps are designed for wattages such as 6, 60, ...1000.. What are their measured filaments temperatures during operation?

There are various methods to estimate these temperatures theoretically but in the absence of experimental data one cannot check its correctness.

04 May 2017 4,922 13 View

"A Markov-like Model for Patient Progression"?

A Markov-like Model for Patient Progression" Markov Chain Monte Carlo (MCMC) Markov Chain Monte Carlo (MCMC) is a powerful computational technique used to draw samples from a probability...

05 August 2024 10,079 0 View

Hello researchers, how can one get the optical density of a filamentous algae?

i am comparing the growth performances of filamentous and non filamentous forms. in a case where I can not count the cells of the filamentous algae using a hemocytometer, is it okay to do a...

30 July 2024 5,985 2 View

ATG in pPICZalfphaA vector: Yes or Not in front of the gene of interest ... ?

Is it appropriate to place the ATG codon in front of the gene of interest, since there is a secretion signal that has its own ATG in front of this gene? I need my protein of interest to be...

10 July 2024 3,050 5 View

To what extent should "reading comprehension" be analyzed in an A.R. based on phonological awareness instruction to EFL students using a webtool?

Dear Colleagues and academy, I am conducting an action research study to understand the impact of phonological awareness activities using Quizlet and Boom on the reading comprehension skills of...

02 July 2024 8,480 0 View

How can we reduce the porosity of tungsten oxide (WO3) thin films during DC sputtering deposition (target: W, power: 100 W, 75 W, and 50 W)?

We are fabricating a tandem structure where a ~50 nm thick WO3 film is deposited between two metal films using DC sputtering. We use a mixture of Ar and O2 gases at different flow rates while...

01 July 2024 2,686 2 View

How to write literature review?

i want to write literature review on the topic " production of 3d PLA filament"

19 June 2024 1,712 2 View

Can anyone suggest an adhesive that can sustain 600C?

I have to join tungsten wire to metallic plate with that adhesive and entire assembly has to be heated upto 600C in ultra high vacuum. I know about zirconia paste but it is not readily available...

18 June 2024 3,092 3 View

How can I stop arena simulation By the entity output number IN ARENA SIMULATION?

I simulate a generation system for five products, and each product consists of a group of 16 parts. I want to process the system in order to obtain 100 products with a probability distribution of...

11 June 2024 3,600 0 View

What is the impact Adaptive Learning for Enhancing Reading Comprehension?

"Adaptive Learning for Enhancing Reading Comprehension: A Case Study in Indonesian Junior High Schools"

08 June 2024 2,593 2 View

[SOLVED] Philips SEM XL30 (Tungsten Filament): HT not working after pressure failure?

Dear fellow researchers, We are currently operating a Philips XL30 Scanning Electron Microscope (SEM) equipped with a tungsten filament and have encountered a significant issue. Recently, our...

28 May 2024 232 2 View

Ette Etuk

Filament lamps while functioning are "as good as new". They have exponential failure laws.

U. Dreher

"What one can infer ..."?

The mechanisms (physics) of aging and failure are well-understood.

Production is withing very tight tolerances regarding the quality of the materials as well as mechanical production tolerances.

Overall: this is a quite "mature" technology showing what can be expected after more than a century of experience and mass-production.