liquid ring vacuum pumps pdf
liquid ring vacuum pumps, compressors and systems_conventional and hermetic design
Ngày tải lên :
02/04/2014, 15:36
... vacuum measuring systems are also called vacuum measuring
tubes, vacuum measuring cells or vacuum measuring heads.
Vacuum gauge; vacuum measuring device. A vacuum gauge is a pressure measuring
instrument ... ring vacuum pumps and
equipment in compact plants
241
4.3 Control of liquid ring pumps and pump systems 244
4.3.1 Electronic vacuum control for distillation in laboratories 246
4.3.2 Liquid ring ... of liquid ring
vacuum pumps and compressors
234
4 Vacuum and Compressor Plants with Liquid Ring Machines 239
4.1 Demands on pump systems in process engineering 239
4.2 Basic combinations of liquid...
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Measurement of Color, Gloss, and Translucency of White Salted Noodles- Effects of Water Addition and Vacuum Mixing.pdf
Ngày tải lên :
16/12/2012, 15:25
... significantly affected by vacuum mixing.
Vacuum mixing at –55 kPa and –90 kPa resulted in a significant
increase in b* values (Table III).
Variables of water addition and vacuum mixing change dough ... also obvious to
the observer (Fig. 7).
Introducing vacuum mixing to dough increased translucency
from 34.78 to 40.01% for boiled noodles. When vacuum changed
TABLE I
Relationship Between Gloss ... was increased from 35 to 38% and when noodles made
from soft wheat flour were mixed under vacuum. Vacuum mixing sig-
nificantly increased gloss of boiled noodles made from soft wheat flours....
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Producing Liquid Fuels from Coal pdf
Ngày tải lên :
06/03/2014, 21:20
... Management
bpd barrels per day
BTL biomass to liquids
Btu British thermal unit
CBTL coal and biomass to liquids
CDE carbon dioxide equivalent
CTL coal to liquids
DoD U.S. Department of Defense
DVE ... Using a portion of these coal reserves to
produce liquid transportation fuels would diversify the liquid- fuel supply base and
16 Producing Liquid Fuels from Coal: Prospects and Policy Issues
Figure ... Economic Value of a Domestic Coal-to-Liquids Industry
71
CHAPTER SIX
Critical Policy Issues for Coal-to-Liquids Development 73
Environmental Impacts of Coal-to-Liquids Production
73
Impediments...
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Mechanical Vacuum Pumps docx
Ngày tải lên :
24/03/2014, 05:20
... volume
1.5D
Andrew D Chew - Mechanical Pumps
Vacuum in Accelerators” CERN Accelerator School May 2006
Dry Pumps
–
Clearance mechanisms
Ult. 0.001 mbar
Andrew D Chew - Mechanical Pumps
Vacuum in Accelerators” ... D Chew - Mechanical Pumps
Vacuum in Accelerators” CERN Accelerator School May 2006
Rotary Pump Speed Curves
Units => cfm, l/m, m
3
/hr
Andrew D Chew - Mechanical Pumps
Vacuum in Accelerators” ... Spectrometry
Interstage Port
Andrew D Chew - Mechanical Pumps
Vacuum in Accelerators” CERN Accelerator School May 2006
Choice of mechanical pump type….
Wet Pumps Dry Pumps
Capital Cost
Low High
Oil Loss...
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Mechanical vacuum pumps * doc
Ngày tải lên :
24/03/2014, 05:20
... and secondary mechanical vacuum pumps. For reference a brief
history of vacuum and a summary of important and basic vacuum concepts
are first presented.
1 Introduction
Vacuum? It is just like ...
Mechanical vacuum pumps developed and used from ~ the mid 20th century to the present day
will be discussed after some basic vacuum concepts.
2 Basic vacuum concepts
The commonly used and basic vacuum ... choices involved between wet (oil-filled) and dry
(oil-free) vacuum pumps.
Table 1: Wet and dry pump comparisons
Wet pumps Dry pumps
Capital cost Low High
Oil loss Can be high at > 1...
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Báo cáo hóa học: "Quantum interference effect in electron tunneling through a quantum-dot-ring spin valv" pdf
Ngày tải lên :
21/06/2014, 04:20
... tunneling
through a quantum-dot -ring spin valve
Jing-Min Ma, Jia Zhao, Kai-Cheng Zhang, Ya-Jing Peng and Feng Chi
*
Abstract
Spin-dependent transport through a quantum-dot (QD) ring coupled to ferromagnetic ... a
three-terminal two quantum dots ring. Appl Phys Lett 2008, 92:172104.
29. Chi F, Zheng J, Sun LL: Spin accumulation and pure spin current in a
three-terminal quantum dot ring with Rashba spin-orbit ... here has been increasing concern
about spin manipul ation vi a quantum interference effect
in a ring- type or multi-path mesoscopic system, mainly
relying on the spin-dependent phase originated...
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Tài liệu Báo cáo khoa học: Electrostatic role of aromatic ring stacking in the pH-sensitive modulation of a chymotrypsin-type serine protease, Achromobacter protease I pdf
Ngày tải lên :
21/02/2014, 03:20
... of this stacking
implies that the interaction between the imidazole and the
electron-rich indole ring is essentially electrostatic, the
Fig. 5. Ionic strength dependent of the pH-activity curve ... 139–143.
19. Chakrabarti, P. & Samanta, U. (1995) CH/, p interaction in the
packing of the adenine ring in protein structures. Advan. Protein
Chem. 39, 125–189.
20. Brandl, M., Weiss, M.S., Jabs, ... electrostatic interaction between Asp113 and
His210 was isolated from solvent.
DISCUSSION
Aromatic ring stacking in the active sites of enzymes has
been reported and possible connections with their...
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Non-gynecological cytology on liquid-based preparations pdf
Ngày tải lên :
05/03/2014, 15:20
... deaths
whistler
whistler
’
’
s mother
s mother
non
non
-
-
gyn
gyn
liquid
liquid
-
-
based cytology
based cytology
liquid
liquid
-
-
based preparation
based preparation
advantages
advantages ... non-cohesiveness etc
liquid
liquid
-
-
based preparations
based preparations
ThinPrep
®
, TP
cytyc, boxborough, ma
fda-approved for hpv-dna test
SurePath
®
, SP
triPath, burlington, nc
liquid
liquid
-
-
based
based
conventional
conventional
conventional
conventional
liquid
liquid
-
-
based
based
smear
smear
preps
preps
___________________________________________________
cellularity
cellularity
high
high
lower
lower
architecture
architecture
preserved
preserved
< ... on lbp
liquid based prep can safely replace
conventional preps for effusion cytology
gutman et al diagn cytopathol 2005;32:181
gabriel et al acta cytol 2004;48:825
immunocytochemistry
on liquid- based...
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Liquid-Delivery Metal-Organic Chemical Vapour Deposition of Perovskites and Perovskite-Like Compounds pdf
Ngày tải lên :
14/03/2014, 19:20
... effect is referred to as anti-Stokes
Raman scattering (∆E
e
= -h(ν
o
+ ν
v
)). The intensity of anti-Stokes scattering relative to Stokes
scattering will increase with temperature. The inelastically ... elastic
and inelastic scattering and can leave the specimen only from a very thin surface layer of the
order of few nanometres. Due to the higher energy of backscattering electrons the information ...
thd – 2,2,6,6-tetramethyl-3,5-heptanedione
UHV – Ultra High Vacuum
XPS – X-ray Photoelectron Spectroscopy
Chemie
Dis
sertation
Liquid- Delivery Metal-Organic Chemical
Vapour Deposition...
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Báo cáo "DETERMINATION SULPHONAMIDES RESIDUES IN FOOD BY HIGH PERFOPvMANCE LIQUID CHROMATOGRAPHY PART 2. SEPARATION AND QUANTIFICATION SULFAGUANIDINE, SULFAMETHOXYPYRIDINE, SULFADOXINE AND SULFAMETHOXAZONE IN ANIMAL FOODSTUFFS AND FOOD PRODUCTS " pdf
Ngày tải lên :
20/03/2014, 21:20
... A 1032 (2004) 23-
29.
6. Che-Yi Lin, Shang-Da Huang - Application of liquid- liquy microextraction and high
performance liquid chromatography for the determination of sulfonamides in water
Analytica ... liquid
chromatography coupled to electrospray tandem mass spectrometry. Journal of
Chromatography A 1157 (2007)
115-121.
8. Guillermina Font. Ana Juan-Garcia, Yolanda Pied - Pressurized liquid ... torn dang
bdt
60
SUMMARY
DETERMINATION SULPHONAMIDES RESIDUES IN FOOD BY HIGH
PERFOPvMANCE LIQUID CHROMATOGRAPHY
PART 2. SEPARATION AND QUANTIFICATION SULFAGUANIDINE,
SULFAMETHOXYPYRIDINE,...
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DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY pdf
Ngày tải lên :
22/03/2014, 14:20
... sizes.
6.4 Laboratory or Aspirator Vacuum System Sufficient capacity to maintain a
minimum vacuum of approximately 13 cm (5 in.) of mercury for cartridges. A
greater vacuum (66 cm [26 in.] of mercury) ... cartridge and into a syringe needle which is
inserted through a rubber stopper into the suction flask. A slight vacuum
of approximately 13 cm (5 in.) of mercury is used during all operations
with ... and the environment involved with the use of large
volumes of organic solvents in conventional liquid- liquid extractions.
14.2 For information about pollution prevention that may be applicable to...
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Báo cáo khoa học: Multidrug efflux pumps: drug binding – gates or cavity? Emily Crowley and Richard Callaghan pdf
Ngày tải lên :
22/03/2014, 21:20
... [15,29,30]. This approach
also allowed investigation of the helical topography
and how this alters during functionally relevant
conformational changes in the protein.
The studies discussed above have ... presented in Table 1.
This not an exhaustive list, but does highlight many
significant observations during the past two decades.
Initial attempts made use of photo-active versions of
ABCB1 inhibitors ... KJ, Kerr ID
& Callaghan R (2004) The topography of transmem-
brane segment six is altered during the catalytic cycle of
P-glycoprotein. J Biol Chem 279, 34913–34921.
16 Storm J, O’Mara ML,...
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LIQUID, GASEOUS AND SOLID BIOFUELS CONVERSION TECHNIQUES pdf
Ngày tải lên :
23/03/2014, 17:20
... sp.
RKY2
-
Wood
hydrolysates*
Continuous
w/cell
recycling
27 - 0.9 6.7 [91]
Liquid, Gaseous and Solid Biofuels - Conversion Techniques14
Chapter 8 Metabolic Engineering of Hydrocarbon Biosynthesis for Biofuel
Production ... fol‐
lowed by a soluble XDH. Rangaswamy et al. [122] isolated strains of Serratia, Cellulomonas
Liquid, Gaseous and Solid Biofuels - Conversion Techniques18
assuming of course that furfural has ... catalyst and a
mixture of palladium and copper oxide and chromium oxide as for the two step process.
Liquid, Gaseous and Solid Biofuels - Conversion Techniques8
Copper has also been indirectly investigated...
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báo cáo hóa học:" The influence of a weight-bearing platform on the mechanical behavior of two Ilizarov ring fixators: tensioned wires vs. half-pins" pdf
Ngày tải lên :
20/06/2014, 07:20
... rings and the relative motion between the rings. There were three
transducers at the site of the defect, two measuring the relative movements and
three measuring the movements between the rings ... mountings: a standard four-
ring frame with two 1.8-mm wires (Smith and Nephew®) per ring and a two -ring
frame with three 6-mm half-pins (Orthofix®) per ring. The diameter of all rings (Smith
and Nephew®) ... was to analyze the mechanical
effects of a weight-bearing platform on the traditional all-wire, four -ring frame in
comparison to a two -ring frame consisting of half-pins.
Methods: Two frame...
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Báo cáo hóa học: " Zenithal alignment of liquid crystal on homeotropic polyimide film irradiated by ion beam" pdf
Ngày tải lên :
20/06/2014, 23:20
... prefers the vapor to the liquid; however, since the
liquid is heavier than the vapor, the liquid is placed under the vapor, and then, the solid is
wetted partially by the liquid. Thus, it is called ... Simple method for measuring the high pretilt angle of nematic liquid
crystals. J Appl Phys 2004, 93:4936-4938.
[13] Scheffer TJ, Nehring J: Accurate determination of liquid
‐‐
‐crystal tilt ... is tension between solid and liquid, and
lv
γ
is tension between liquid and vapor. In Equation 1, when
sl lv sv
0 ( )
S
γ γ γ
≥ + ≤ , the
solid is wetted by the liquid entirely, and then, it...
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