How can we calculate heat input in Co2 Laser welding in continuous mode where power 2KW Traverse speed is 25 mm/s Time taken 15 seconds?
Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...
03 March 2021 8,796 3 View
I would like to create a small guide containing the meanings of the names .. Thanks to everyone who cooperates with me in achieving it.
03 March 2021 5,266 4 View
Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !
02 March 2021 5,785 3 View
How to do Piezoelectric coupling in ANSYS-APDL or COMSOL between tapered substrate and rectangular piezoelectric patch? Piezoelectric coupling between the rectangular substrate and rectangular...
02 March 2021 9,833 3 View
I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...
01 March 2021 8,544 1 View
Is the electropolymerisation of polyaniline coating over stainless steel (SS) via Cyclic voltammetry technique is really adherant? Else how to improve the adhesion of the coating, whether any...
01 March 2021 8,220 2 View
I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....
01 March 2021 3,325 2 View
Does anyone have the experience of using Taq Man probes in the QIAGEN Rotar- Gene qPCR machine?
01 March 2021 5,311 1 View
When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?
28 February 2021 3,864 3 View
Hello, I have simulated a single battery cell using Thevenin equivalent circuit. For a battery pack, I have a large number of cells connected in series and parallel connections. Is there any way...
28 February 2021 2,116 1 View
Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...
01 March 2021 7,168 9 View
Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?
01 March 2021 9,785 3 View
I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...
01 March 2021 6,450 5 View
I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...
28 February 2021 6,477 1 View
I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...
28 February 2021 8,626 3 View
I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...
28 February 2021 4,890 3 View
I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...
27 February 2021 8,128 1 View
Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...
26 February 2021 6,253 3 View
I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...
26 February 2021 1,511 3 View
Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...
26 February 2021 1,100 5 View