I am working on a project where I am dealing with four different conditions.?

In my model I'm doing plastic extrusion simulation with motion of nozzle simultaneously. So material is flowing continuously and when material comes out of nozzle I want to add convection and conduction.

1)I want to do natural convection with melted material with the air. so how can I do interference melted semi solid part.

2) How to do conduction between glass plate and melted solid?

so how to manage interference of this to surfaces?

Is it fine to take glass as isotropic(as seen in some journal paper) and analyses the same. Is orthotropic thermal properties of glass, plastics are available?Can we use PLANE 55 for the analysis ?

I am freeze drying mixed bacterial cultures in 10-20% non fat skim milk. I grow my different cultures in TSB broth and extract the bacterial cells by centrifuging the broths discard supernatant and suspend pellets in skim milk. After mixing pellets with the milk for each organism I then mix the different suspensions in to one tube from which I measure 0.5ml to prefreeze. The final mixed suspension is first cooled in lab freezer before being transferred to the ultra freezer(-80-oC) where it stays overnight. The following day I switch on the refrigeration of the freeze dryer to lower the temperature of the condenser chamber(cold trap) to around -50oC (it can only reach max of -53oC). I then load samples in to the drying chamber that is then mounted on the mouth of the cold trap and switch on the vacuum pump. When the pump is put on the vacuum does not immediately begin, it delays for about a minute before it starts. And upon application of vacuum the samples are pushed up the vials(containers), melts , bubbles and pours off. What could be causing this?

Hi all,

I am purifying a protein using anti-Flag magnetic beads.  The protein purification is fine but I lose a lot of beads because they attach to the plastic (tips, tubes, falcon,..). Any suggestion on how to reduce the beads loss?

I was wondering if a glass tube could make any difference. 

Thanks for your help

Melamine is not edible and dangerous for health, whether it is on milk etc. You may even find the trace of it on every food or drink which is served on melamine plate or glass. Especially if the food/ drink is hot and/or sour.

Is it safe to use plastic pippette or only glass pippette can use?

Dear

Every food item available in Nature have 1. Carbohydrate, 2. Protein, 3.Lipid, 4. Vitamins, and 5. Minerals. Their quantum varies.

If one is a non-athlete the following may be followed ( individual variations will be there)

Morning

One fistful rice/wheat + One fistful Fruit + One fistful Vegetable + One glass of Milk.

Lunch

Two fistful rice/wheat + Two fistful fruit + two fistful Vegetable + One glass of Milk

Night

One fistful rice/wheat + One fistful fruit + One fistful Vegetable + One glass of Milk (before going to bed)

----------------

Ant is the strongest animal with very little muscle on its body. And it is vegetarian and also nonvegetarian like man. So, non-vegetarian food is not compulsory in man. All aminoacids (essential/nonessential) required for healthy human body are present in vegetarian food.

If one wants nonvegetarian food eat only roasted pieces on flame without adding spices including pepper on the pieces of flesh.

This is my observation.

Hello Guys

I have a question about type of syringe.

I have been using TiCl4 as a precursor for TiO2 in ALD process, and i used to handle TiCl4 liquid with glass type of syringe and stainless needle, but when it comes to controll, i.e. transfer small amount of TiCl4 from bottle to precursor bottle, its little bit difficult and small amount of remains in glass syringe make some issue.

so my question isto,, is it okay if i´m using plastic type of syringe?

is there no reaction btw rubber in syringe nor plastic with TiCl4? or.. are you guys have any suggestion or preferance?

thanks in advance :D

I'd like to know if a strain gauge can be used to separate plastic, glass and cardboard for waste segregation application.