process industrial instruments and control handbook
giáo trình điều khiển quá trình english
... ANJ CHAP-01 PROCESS/ INDUSTRIAL INSTRUMENTS AND CONTROLS HANDBOOK controllers, stations, and master blend control systems The application of automatic rate control, time control, and temperature ... QC: ANJ CHAP-01 PROCESS/ INDUSTRIAL INSTRUMENTS AND CONTROLS HANDBOOK Industrial Weighing and Density Systems Strain-gauge and pneumatic load cells for weighing various hopper and tank vessels ... ANJ CHAP-01 PROCESS/ INDUSTRIAL INSTRUMENTS AND CONTROLS HANDBOOK such as cable types, devices per spur, topology, and junction box details, and the execution and status of the basic and advanced...
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Silicon quantum wires arrays synthesized by chemical vapor deposition and its micro structural properties
... with the pore surface and the atomic Si has absorbed and exchange energy and momentum with the atom, causing overcooling at the surface Because the precipitation, nucleation and growth of SiNWs ... surface and the M Lu et al / Chemical Physics Letters 374 (2003) 542–547 change in diameter along its length is seldom observed The SiNWs are virtually defect-free and show no kink, dislocation and ... tip of the SiNWs is sharp and has a perfect lattice structure This is in contrast with the previous SiNWs that are round and contain a high density of stacking faults and micro-twins Obviously,...
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Báo cáo " WATER VAPOR FEEDBACK AND GLOBAL WARMING " pot
... AR118-13 SODEN and CO2, and dividing up the atmosphere in the vertical into a number of layers N, we can think of R as a function of the surface temperature and of the temperature and the water ... France 7:569–604 Tyndal J 1861 On the absorption and radiation of heat by gases and vapours, and on the physical connexion of radiation, absorption, and conduction Philos Mag 22:169–94, 273–85 Fleming ... laboratory and atmospheric measurements and the remaining uncertainty is unlikely to modify climatic sensitivity significantly There is also room for improvement in the construction of broadband radiation...
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vapor pressure and antoine constants for hydrocarbons, springer (1999),
... relevant protective laws and regulations and therefore free for general use Product Liability: The data and other information in this handbook have been carefully extracted and evaluated by experts ... pharmaceuticals, environmental professions, food processing, and biotechnology They bring with them their skills and knowledge of continuous processing and their consequent need for thermodynamic ... Landolt-Börnstein Added t.p.: Numerical data and functional relationships in science and technology Tables chiefly in English Intended to supersede the Physikalisch-chemische Tabellen by H Landolt...
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Chapter 14 GAS–VAPOR MIXTURES AND AIRCONDITIONING
... T2, the adiabatic saturation process described above can be analyzed as a steady-flow process The process involves no heat or work interactions, and the kinetic and potential energy changes can ... Maintaining a living space or an industrial facility at the desired temperature and humidity requires some processes called air-conditioning processes These processes include simple heating (raising ... in winter and cooled and dehumidified in summer Notice how these processes appear on the psychrometric chart Humidifying H Dehumidifying e hu ati m ng id ify and in g AIR-CONDITIONING PROCESSES...
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Characterization of silica gel water vapor adsorption and its measurement facility
... SETUP AND PROCEDURE Thermostat controller Heat tape Figure 4.4 Heating tape with thermostat controller Reach® micro processor temperature controller Figure 4.5 Heating tape with Reach® micro processor ... temperature control, a Reach® micro processor temperature controller is used, as shown in Figure 4.5, making use of solid state current relay to control the heat tape temperature using a feedback control ... the sample container, detects and measures the temperature inside the furnace and immediately updates the temperature display both on the status and control panel and monitor screen Although the...
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Tài liệu Metal Organic Chemical Vapor Deposition: Technology and Equipment docx
... computer controlled valves, mass flow and pressure controllers, and tubing that regulate and direct the flows and pressures of all reactants It is desired that the flows be accurately controlled ... of knowledge and understanding that will enable the reader 154 Thin-Film Deposition Processes and Technologies to gain practical insight into the various technological processes and options MOCVD ... Deposition Processes and Technologies Mass flow and pressure controllers are critical components for a system A flow controller uses a flow meter as feedback to an electronically controlled needle...
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Tài liệu Possible influences of air pollution, dust- and sandstorms on the Indian monsoon doc
... monsoon rains and droughts, as well as major industrial pollution and desert sand- and dust storms In the remainder of this article, we shall focus on aerosols in the IndoGangetic Plain and the Arabian ... precipitation processes are strongly dependent, not only on the aerosol properties but also on the dynamical states and feedback processes in the coupled ocean-atmosphere-land system To understand a ... meridional-vertical streamline and temperature; and (d) zonal winds (contour) and specific humidity (shading) D evara, P.C.S., P.E R aj, G Pandithurai, K.K Dani and R.S Maheskumar, 2003: Relationship...
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Photoluminescence and growth mechanism of amorphous silica nanowires by vapor phase transport
... Appl Chem 62 (1990) 1709 [38] D.R Lide, Handbook of Chemistry and Physics, 81st ed., CRC Press, Boca Raton, FL, USA, 2000 [39] D.R Lide, Handbook of Chemistry and Physics, 79th ed., CRC Press, Boca ... band) and Egreen (green emission band) can be obtained, although the fitting was quite subjective The results are tabulated in Table The red emission band has a relatively constant intensity, and ... bond, and Zn–Cl bond are 799.6713.4, 15974, and 228.9719.7 kJ/ mol [38], respectively; and the lattice energy in a thermochemical cycle of SiO2, ZnO, and ZnCl2 are calculated to be 13125, 3971, and...
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Báo cáo khoa học: Maturation of Pichia pastoris-derived recombinant pro-Der p 1 induced by deglycosylation and by the natural cysteine protease Der p 1 from house dust mite doc
... der Lecq and others for their quick and excellent work on the protein sequences (Sequentie centrum, Utrecht, the Netherlands), and Dr Maurits de Planque for his explanations, time, and help, ... with respect to concentration and number of amino acids The percentages of a helices, b sheets and random structures were interpreted from known reference spectra Autoprocessing of rpro-Der p Puri®ed ... Natural Der p 1, recombinant pro-Der p (SMD1168h and X-33) and Endo H-treated rpro-Der p (SMD1168 h) were electroblotted on to nitrocellulose membrane and then incubated overnight in NaCl/Tris/0.1%...
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distillation and vapor pressure measurement in petroleum products
... and not subject to deterioration over a reasonable period of time Standard statistical quality control procedures can be used, and a good example of such a standard is ASTM D6299 ͓9͔ Out-of -control ... current standard, and only a 32 mm ͑1.25 in.͒ flask support hole was required Other than these differences, the original version of the standard is very similar to the current standard The standard ... D4057 “Standard Practice for Manual Sampling of Petroleum and Petroleum Products” ͓4͔ is often quoted as the standard practice for the manual sampling of petroleum and petroleum products, and ASTM...
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greenhouses. mist propagation systems and humidity chambers for the nursery and greenhouse
... resources and environment; family and consumer sciences; 4-H and other youth; and community resource development Extension staff members live and work among the people they serve to help stimulate and ... printed and issued by Oklahoma State University as authorized by the Vice President, Dean, and Director of the Division of Agricultural Sciences and Natural Resources and has been prepared and distributed ... switch and turning the mist back on By adjusting the position of the counterbalance weight, the drying interval and mist time can be controlled within reasonable limits In a second type of control...
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báo cáo hóa học:" An aerobiological perspective of dust in cage-housed and floor-housed poultry operations" ppt
... Penicillium sp and less commonly, Alternaria sp., Fusarium sp., Geotrichum sp and Streptomyces sp [20,21] Types and levels of fungi and bacteria depend on management processes that control relative ... pollens, feed and litter particles, feathers (which produce allergen dandruff), grain mites, fungi, spores, bacteria, viruses and their constituents, peptidoglycan, β-glucan, mycotoxin and endotoxin ... urine, litter and feed particles Although the presence of feces, urine, litter and feed are all intrinsic to poultry production, the types of feed and litter may alter the types and levels of...
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Báo cáo hóa học: "Preparation of Aligned Ultra-long and Diameter-controlled Silicon Oxide Nanotubes by Plasma Enhanced Chemical Vapor Deposition Using Electrospun PVP Nanofiber Template" potx
... with controlled dimensions In this work, the preparation of aligned ultra-long and the synthesis of diameter-controlled SiOx nanotubes array by plasmaenhanced chemical vapor deposition (PECVD) process ... situated at 99.2 and 102.4 eV are associated with the Si0 (Si-Si4) and Si3? (SiSiO3), respectively By contrast, two peaks situated at 102.1 and 103.5 eV are associated with Si3? (Si-SiO3) and Si4? (Si-O4), ... polymer fibers in spinning process Moreover, thinner fibers tended to be broken during the spinning process Therefore, baking offered a simple and effective approach for controlling the diameter...
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Báo cáo hóa học: "Platinum Assisted Vapor–Liquid–Solid Growth of Er–Si Nanowires and Their Optical Prope" potx
... happens in a complex VLS process Three phases, two interfaces (that is, vapor–liquid and liquid– solid interfaces), and chemical reactions are involved [23] in the VLS process In terms of kinetics, ... from 80 to 150 nm and lengths of *10 lm, respectively It is known that the epitaxial relationship between the substrate and NWs attributes to the vertical growth of NWs [19] and, thus, both catalysts ... indicates the presence of Er, Si, and O in the surface layer, and a high-resolution TEM image of the surface region shows the presence of a single-crystalline layer sandwiched between nanometer-thin...
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Báo cáo hóa học: " Physical and Electrical Performance of Vapor–Solid Grown ZnO Straight Nanowires" doc
... infrared allowed (A1 ? E1), and both Raman and infrared silent (2B1) The A1 and E1 modes, corresponding to optical phonons, will split into a longitudinal-optical (LO) and a transverse-optical (TO) ... important feature characteristic of hexagonal phase ZnO The bands 380 cm-1 and 410 cm-1 agree with phonon vibration frequencies of A1 (TO) and E1 (TO) modes of wurtzite ZnO, respectively The peak ... excite electrons across the bandgap of ZnO (3.37 eV) The photoconduction result indicates the ZnO straight nanowires reported here are UV light sensitive and a desirable candidate for nano-scale UV...
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Báo cáo hóa học: " Tungsten Oxide Nanorods Array and Nanobundle Prepared by Using Chemical Vapor Deposition Technique" potx
... NSF-EPSCoR and DoD grants We would like to thank Mr William’s assistance of Raman measurements, Mr Ortiz and Ms Hernandez for SEM and EDS measurements, Mr Esteban for XPS measurements and Mr Wu ... bands marked with K1 and K2 located in 770 cm–1 and 870 cm–1 which was shown in Fig 4a, were related to tungsten oxide Typical Raman peaks of crystalline tungsten oxide located at 700 cm–1 and ... well In general, the bands situated at around 700 and 800 cm–1 could be assigned to W–O stretching model, whereas the bands situated at around 130 and 270 cm–1 were associated to W–O bending modes...
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from dust to stars studies of the formation and early evolution of stars
... sulfur (red), hydrogen (green), and oxygen (blue) Observation and image processing by R Crisp and reproduced here with his permission From: http://www.narrowbandimaging.com The inset shows a ... Formation and Techniques in IR and mm-Wave Astronomy, by T Ray and S V W Beckwith, published in 1994 These books are highly recommended resources The scope, though, has to be expanded and should ... outflows, disks, and large-scale turbulence The field today requires the most powerful and sensitive instruments and telescopes mankind is able to provide It utilizes the fastest computers and memory...
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Báo cáo lâm nghiệp: "The influence of acid mist upon transpiration, shoot water potential and pressure—volume curves of red spruce seedlings" pot
... Day and night transpiration rates were tree1 s’ 1.19 ± 0.06 mmol (day) and 0.54 ± 0.06 mmol (night) for tree1 s’ whole trees treated with pH 2.5 mist, tree1 s’ and 1.5 ± 0.14 mmol (day) and 0.68 ... treatment pH Fig shows changes in e with turgor v (top) and RWC (bottom) for pH 2.5, 3.0 and pH 5.0 treated branches -, increased linearly with turgor and increased curvilinearly with RWC pH 5.0 treated ... Forests, VVetlands and Ac Ecosystems, (Hutchricultural f inson T.C & Meema K.M., eds.), NATO ASI Series, Springer-’Verlag, Berlin, pp 83-99 Kim J.M & Lee-3tadelmann O.Y (1984) Water relations and cell...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - VAPOR AND GASEOUS POLLUTANT FUNDAMENTALS pps
... environment to N2 and N2O The selective catalytic reduction may be used to control the SO2 and NOx emissions simultaneously Removal of entrained water and acid mist by using a chilling method and mist ... 33, April 11, p 48, and April 25, p 70, 1977 39 Ray, G.C and E.O Boxes, Jr., Ind and Eng., 42, 1315, 1950 40 Reid, R., T.K Sherwood and J.M Prausnitz, The Properties of Gases and Liquids, McGraw-Hill, ... flow and transport behavior for fluids and then the separation methods The important process variables to be considered are the mass flow rate of the waste gas, its temperature, pressure and composition...
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