assembly and welding processes and their monitoring and control

... discussed and conclusions are made 12.2 Manufacturing Process Monitoring and Control In this chapter, we will treat the problems associated with monitoring and control of manufacturing processes ... product quality monitoring and control problems Furthermore, we will consider only on-line monitoring and control schemes 12.2.1 Manufacturing Process Monitoring Product quality of most processes cannot ... Manufacturing Processes: Monitoring and Control Hyung Suck Cho Korea Advanced Institute of Science and Technology (KAIST) 12.1 12.2 12.3 12.4 12.5 12.6 12.7 Introduction Manufacturing Process Monitoring and...

Ngày tải lên: 25/12/2013, 19:15

... comprehensive understanding into the biology of biofilms associated with water purification membranes (MF and RO), and to address the inadequacies of current biofilm monitoring and control strategies ... its monitoring and control The materials presented here are focused mainly on the biofouling of MF and RO membranes, its analysis methodologies and the inadequacies associated with current monitoring ... Monitoring 41 2.6.1 Organic carbon-based biofilm monitoring 41 2.6.2 Surface-based biofilm monitoring .46 2.7 Biofilm Control .48 2.7.1 Conventional biofilm control...

Ngày tải lên: 12/09/2015, 08:19

... strategies that provide greater control over polymer size and shape than hitherto possible in commercial polymers Molecular stiffness enables the precise placement and functional control of shape-persistent ... Waals interactions, and geometrial effects were incorporated on the mesogens attached to the polymer backbone to control the self -assembly of polymer chains in the lattice DSC and POM results show ... to help the self -assembly of the polymers The length of the alkyl chain and position of the alkyl chain on the mesogenic units appears to have significant effect on the self -assembly Besides...

Ngày tải lên: 16/09/2015, 17:11

... refractometer HPLC system and Waters Styragel HR 4E columns using THF as eluent and polystyrene as standard UV and fluorescence spectra were performed on a HP 8452A spectrophotometer and SHIMDZU RF 500 ... polymer 3b, and 3c showed corresponding Tg at 85 °C and 112 °C, respectively However, polymer 3c showed a higher Tg than the other two polymers, which might be due to the presence of rigid and bulky ... polymer 3a, 3b and 3c measured in a nitrogen atmosphere 5.3.2 Optical properties The spectroscopic properties of polymers 3a, 3b and 3c were measured in chloroform solution The absorption and emission...

Ngày tải lên: 16/09/2015, 17:11

... pyrimidine groups and alkyl sulfonic acid and investigate their self-assembling properties in the solid state 114 4.2 Experimental section 4.2.1 Materials and reagents All reagents and solvents were ... mixture was warmed to RT, stirred overnight, and mixed with 200 ml of deionized water The organic phase was collected and dried with MgSO4 and filtered, and the solvent was removed under reduced ... = 2.46, 2.86 and 4.91o, from which d spacings of 35.9 Å, 30.6 Å and 17.9 Å are derived It also offers a sharp reflection in the middle angle region and a broad halo at 2θ = 7.42 and 19.9 o, from...

Ngày tải lên: 16/09/2015, 17:11

... chains and rigid units may be insignificant and the full polymer chain adopts a cylindrical geometry, whereas, in P2C10 and P1-C10, the backbone and mesogenic units form the rigid core and the ... temperatures of P1-C4 and P1-C10 decrease to 64.8 °C and 24.8 °C, respectively Similarly, P2-C1 shows a glass transition at 63.1 °C whereas the Tgs of P2-C4 and P2-C10 decrease to 20.4 and –19.7 ºC It ... equipped with a Water 410 differential refractometer HPLC system and Waters Styragel HR 4E columns using THF as eluent and polystyrene as standard The XRD patterns were recorded on a powder diffractometer...

Ngày tải lên: 16/09/2015, 17:11

... region and a broad peak at 2θ = 7.52 and 20.2°, from which a d spacing of 11.8 and 4.4 Å is derived For P02 and P04, the diffraction patterns only exhibit one broad peak at 2θ = 20.1o and 20.2 o, and ... mol), and 100 ml absolute ethanol were added to a 250 ml roundbottom flask, and purged with N2 for 20 0.9 g NaOH was added to the mixture and purged with N2 for another 20 min, heated to 60 °C and ... of 35.9Å, 30.6 Å and 18.0 Å are derived It also offers a sharp reflection in the middle angle region and a broad halo at 2θ = 7.42 and 19.9 °, from which d spacings of 11.9 Å and 4.5 Å are derived...

Ngày tải lên: 16/09/2015, 17:11

... actuating, and control devices with components in the nano- or microscale Various chemical synthesis and physical manipulation techniques are under development to meet the challenge of architectural control ... cavities of inorganic clay and sieves2-3, or self -assembly methods to develop nanostructured materials Self -assembly of molecules through non-covalent forces including hydrophobic and hydrophilic effects, ... der Waals interactions, and shape effects, to control the self -assembly of polymer chains in the lattice The novel polymers were characterized with GPC, DSC, TGA, FTIR, 35 and NMR This work show...

Ngày tải lên: 16/09/2015, 17:11

... APPROACH TO SELF -ASSEMBLY UA,P(x) and UR,P(x) represent the attractive and repulsive potentials for the selfassembly of primary building units, respectively UA,S(x) and UR,S(x), and UA,T(x) and UR,T(x) ... parents, and my parents-in-law—for their endless support and love Yoon Seob Lee Dublin, Ohio ylee@cas.org PART I SELF -ASSEMBLY UNIFIED APPROACH TO SELF -ASSEMBLY Traditionally, self -assembly has ... attractive and repulsive forces that can be found in self -assembly processes Biological systems are full of self -assembly processes in this sense Biological membranes, DNA, RNA, enzymes, and proteins...

Ngày tải lên: 15/11/2012, 10:12

... government agency Tertiary or managerial processes: the business processes that direct and coordinate the primary and secondary business processes The former processes impose business targets on ... strategic decision making and operational control This case has been described earlier by Reijers and Van der Aalst (1999) In summary, the design and control of business processes are defined as ... (Hammer and 1.3 Business Process Redesign 15 Champy, 1993; Van Hee and Reijers, 2000) Clients today are characterized by their relentless demands in quality, service and price; take for example their...

Ngày tải lên: 21/07/2013, 09:42

... Programming in Assembly and C 8051 Serial Port Programming in Assembly and C Interrupts Programming in Assembly and C 8051 Interfacing to External Memory 8051 Real World Interfacing I: LCD,ADC AND SENSORS ... TAIWAN 37 8051 MICROCONTROLLERS The 8051 Microcontroller and Embedded Systems: Using Assembly and C Mazidi, Mazidi and McKinlay Chung-Ping Young 楊中平 Home Automation, Networking, and Entertainment ... AND SENSORS LCD and Keyboard Interfacing 8051 Interfacing with 8255 INTRODUCTION TO COMPUTING The 8051 Microcontroller and Embedded Systems: Using Assembly and C Mazidi, Mazidi and McKinlay Chung-Ping...

Ngày tải lên: 04/10/2013, 19:10

... to control the project ensures that the focus is kept on achieving the outcomes within the budget and timescale agreed The word control sounds very authoritarian and inflexible However, control ... of effective management and is a key responsibility of a project manager MONITORING To control a project you need a plan that details how things should be happening, and you need accurate information ... Monitoring and control 119 the project will not meet its targets because progress is too slow, or if a delay in one activity will impact on others, causing waste and further delay Control may...

Ngày tải lên: 24/10/2013, 08:20

... scales and the concepts of temperature monitoring and control Chapter describes the theory of thermocouple sensors Types of thermocouples and their use in practical circuits are discussed A microcontroller ... structure 6 Microcontroller-based Temperature Monitoring and Control In-circuit programming In microcontroller development cycle, a microcontroller is normally removed from its socket and then programmed ... instruction and data are treated identically In the Harvard architecture (used by the PIC microcontrollers), code and data storage are on separate Microcontroller-based Temperature Monitoring and Control...

Ngày tải lên: 22/12/2013, 21:15

... on-line UV florescent monitor/controller This unique tracer and control method allows automatic monitoring and control of inhibitor dosage and is currently marketed as their “TRASAR” technology Unfortunately ... ProChemTech to devise and commercialize an on-line spectrophotometer based monitor and controller to control feed of traced inhibitors After review of the technology in the hand held spectrophotometers ... than control limits for the entire period From this data, it is clear that installation and operation of the sensor control unit substantially improved chemical inhibitor control Biological control...

Ngày tải lên: 16/01/2014, 22:20

... orf-4 and hemE) all putatively transcribed in the same direction [7] The second and fifth genes (aauA and aauB) encode the large and small subunits of AADH, respectively The genes aauD and aauE ... cells and media The bacterial strains and plasmids used in this study are listed in Table For strain stocks and DNA isolation, E coli and A faecalis were cultured with Luria–Bertani media at 37 and ... aauBEDA, orf-2, orf-3, orf-4 and hemE) [7] Genes are represented by their corresponding letter, numbers denote orfs 1–4, and hE is an abbreviation for hemE The mauF promoter and mauR gene from P denitrificans...

Ngày tải lên: 19/02/2014, 07:20

... lack the cagPAI and are less virulent The Cag secretion system is responsible for the induction of a pronounced pro-inflammatory response in vitro and in vivo, and the translocation and subsequent ... cagPAI and the properties of both conserved and unique components of the Cag-T4SS, together with potential implications for the current understanding of its mode of action The cagPAI and the ... review by Terradot and Waksman [30] This core complex consists of 14 monomers each of the VirB7, VirB9 and VirB10 homologues and does not require other secretion system components for assembly It is...

Ngày tải lên: 06/03/2014, 00:21

... and a Vps4p protein containing an intact C-terminal helix Based on our experimental data and bioinformatic analysis, we propose a model for the role of the C-terminal helix in Vps4 assembly and ... ATPase domain and C-terminal helix [36] showing the location of residues that were mutated The TRP, RDF and DEL sequences are shown in green, dark blue and red, respectively The b domain and C-terminal ... wild-type Vps4p and inhibit its function in vivo One possible explanation for the difference between our in vivo and in vitro findings is that in vivo Vta1p may allow assembly of otherwise assembly- incompetent...

Ngày tải lên: 07/03/2014, 05:20

... 2-oxoacids and 2-Oxoacid dehydrogenase complex from the Archaea pyruvate [14] In the current paper, we report the cloning and expression of the E2 and E3 genes of the same operon from T acidophilum, and ... and pyruvate [14] In the current paper, the E2 and E3 genes have also been successfully cloned and expressed as soluble proteins in E coli, and their catalytic activities have been demonstrated ... restriction endonuclease digestion for E2, and NheI ⁄ EcoRI digestion for E3, and purified by gel electrophoresis and gel extraction as already described E2 and E3 genes were separately ligated into...

Ngày tải lên: 16/03/2014, 05:20

... recognition and assembly processes fostering amyloid-fibril formation is a very complicated task Moreover, the synthesis of large peptides, especially aggregative peptides, is expensive and difficult ... order and directionality, in the self -assembly of amyloid structures [25] This view is in line with the well-known central role of aromatic-stacking interactions in general self -assembly processes ... understanding this life-threatening process Extremely short aromatic peptides form amyloid fibrils readily and efficiently The importance of aromatic moieties in the molecular recognition and self-assembly...

Ngày tải lên: 23/03/2014, 11:20