Mass transfer

The primary objective of this research is to study the effect of solids concentration and active particle mass fraction on mass transfer in a solid-liquid (dissolution) system and determine the optimum solids volume fraction and operating conditions that will help to achieve higher mass transfer efficiency at higher solids concentration than hitherto used (> 5% v/v).

91p runthenight07 01-03-2023 8 3   Download

Nội dung môn học trình bày cơ chế quá trình, phương pháp tiến hành, phương pháp tính toán các quá trình khuếch tán trong một pha cũng như giữa các pha: Hấp thụ, chưng cất, trích ly lỏng – lỏng, sấy, hấp phụ và trao đổi ion, trích ly chất rắn, kết tinh, màng bán thấm. Cấu tạo, nguyên lý hoạt động, ưu nhược điểm và phạm vi sử dụng của các thiết bị truyền khối điển hình (dạng tháp và máy sấy).

5p covid19 02-03-2020 86 4   Download

A heat and mass transfer were two processes which occurred during vacuum frying potato chips. The heat transfer process included the convection of heat from the surface to the product and the conduction of heat into the product.

15p mylienanlen 04-08-2015 82 9   Download

Acryloyl-CoA reductase fromClostridium propionicum catalyses the irreversible NADH-dependent formation of propionyl-CoA from acryloyl-CoA. Purification yielded a heterohexadecameric yellow–greenish enzyme complex [(a2bc)4; molecular mass 600 ± 50 kDa] composed of a propionyl-CoA dehydrogenase (a2,2·40 kDa) and an electron-transferring flavoprotein (ETF; b,38kDa;c, 29 kDa). A flavin content (90% FAD and 10% FMN) of 2.4 mol pera2bcsubcomplex (149 kDa) was determined.

9p tumor12 20-04-2013 42 3   Download

The plastid-encodedpsaJgene encodes a hydrophobic low-molecular-mass subunit of photosystem I (PSI) containing one transmembrane helix. Ho-moplastomic transformants with an inactivatedpsaJgene were devoid of PSI-J protein. The mutant plants were slightly smaller and paler than wild-type because of a 13% reduction in chlorophyll content per leaf area caused by an 20% reduction in PSI.

13p galaxyss3 21-03-2013 43 4   Download

Peptide and protein sequence analysis using a combination of gas-phase ion–ion chemistry and tandem MS is described. Samples are converted to multiply charged ions by ESI and then allowed to react with fluoranthene radical anions in a quadrupole linear ion trap mass spectrometer.

8p media19 05-03-2013 37 2   Download

A Hausdorff measure version of the Duffin-Schaeffer conjecture in metric number theory is introduced and discussed. The general conjecture is established modulo the original conjecture. The key result is a Mass Transference Principle which allows us to transfer Lebesgue measure theoretic statements for lim sup subsets of Rk to Hausdorff measure theoretic statements. In view of this, the Lebesgue theory of lim sup sets is shown to underpin the general Hausdorff theory. This is rather surprising since the latter theory is viewed to be a subtle refinement of the former. ...

23p noel_noel 17-01-2013 48 6   Download

n the 1990s, a technique was developed to transfer proteins from electro-phoresis gels onto poly(vinylidene difluoride) (PVDF) membranes, digest the proteins on the membranes with proteases such as trypsin and analyze the resulting peptides on the membranes directly by mass spectrometry to identify the proteins.

8p cosis54 09-12-2012 47 4   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Mass transfer, clearance and plasma concentration of procalcitonin during continuous venovenous hemofiltration in patients with septic shock and acute oliguric renal failure...

7p coxanh_2 23-10-2011 42 4   Download

The article deals with a research on the design and manufacturing of a dynamic balancing machine, using dynamic load sensors and optical one, for calculating the unbalanced mass in thick rotating part on two choosen correction planes. Dynamic load sensors attached to the bearing supports of the machine help us determine the reaction forces generated by the unbalanced mass of the rotor. These load signals are filtered and digitized at a sampling rate which is synchronous to the rotor via an optical sensors.

6p meoden89nd 19-01-2011 80 37   Download