Vacuum assisted flow initiation in arching powders

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

resin flow in fiber preformed by vacuum assisted resin transfer molding with flexible tools

vacuum assisted resin transfer molding, as a sub-branch of rtm is a method of manufacturing composite specimens. considering the industrial development of this method, different modified techniques are designed to improve its performance. among these techniques, using a half flexible mold is regarded as an important method. in this work, dominant equations of resin flow through the mold in pola...

متن کامل

Vacuum-assisted vaginal delivery.

The second stage of labor is a dynamic event that may require assistance when maternal efforts fail to effect delivery or when there are nonreassuring fetal heart tones. Therefore, knowing how to perform an operative vaginal delivery with forceps or vacuum is vital for family physicians who provide maternity care. Vacuum is rapidly replacing forceps as the predominant instrument, but each has a...

متن کامل

Vacuum-assisted cesarean section

There has been a dramatic rise in the frequency of cesarean sections, surpassing 30% of all deliveries in the US. This upsurge, coupled with a decreasing willingness to allow vaginal birth after cesarean section, has resulted in an expansion of the use of vacuum assistance to safely extract the fetal head. By avoiding the use of a delivering hand or forceps blade, the volume being delivered thr...

متن کامل

Controlled flow of smart powders.

The flow properties of powders are mainly due to the interplay of cohesive forces and intergrain frictional forces. We have experimentally investigated a "smart granular system" for which the interparticle cohesion can be tuned by a magnetic field B[over ] . We show that the rheological features of such a system can be controlled. Indeed, the granular flow can be controlled or even stopped by t...

متن کامل

Shock wave initiation of the Ti5Si3 reaction in elemental powders

Elemental powder mixes were subjected to plane-wave shock processing which reduced the initial porosity to essentially zero. Two powder mixes in a 5:3 Ti:Si atomic ratio were used: 2325 mesh Ti and Si ~,45 mm!, and 2100 mesh Ti and Si ~,150 mm! with shock pressures up to 7.3 GPa and shock energies up to 671 J/g. Shock pressures were calculated using hugoniot parameters for porous elemental powd...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Powder Technology

سال: 2016

ISSN: 0032-5910

DOI: 10.1016/j.powtec.2016.03.051