maintenance of cooling towers

... the coolingtowers The heat from the refrigerant is transferred to the water returning to the cooling towers Finally, the cooling towers release the waste heat to the environment, in the form ofwater ... of the hospital'scooling system and cooling towers Trang 10Table 1 Cooling System Characteristics, Providence HospitalChiller capacity 354 Tons (425,000 BTU/hr.)Chiller operation (ave.) 85% of ... generator operation 65% of capacity Water flow, 03, injection loop 60 gpm Cooling towers The cooling towers are about 15 years old, eachwith a capacity to remove 360,000 BTU's of heat per hour (300tons)...

Ngày tải lên: 16/01/2014, 22:20

... lL, which contained 0.1 m KPB (pH 7.4), 15 lm and 15 lg of cytochrome P450 reductase After 2 min of of 10 lL of NADPH (8.4 lgÆmL) or 10 lL of water as a blank mixture The reaction mixture was incubated ... The amounts of bilirubin formed in the reaction system were calculated Effects of actinomycin D on the expression of HO-1 and HO-2 mRNA To study the effects of hypoxia on the stability of HO-1 and ... liver after 7 days of normobaric hypoxia (10% oxygen) and returned to the basal level after 14 days of hypoxia [26] It is therefore of significance to study the regula-tion of HO-2 expression...

Ngày tải lên: 19/02/2014, 06:20

... the roles of these DHSs on the transcription of Ig-b gene and on the maintenance of the active chromatin state Results Generation of DT40/Cre cells with a long deletion in one allele of the Ig-b ... The role of DNase I hypersensitive sites (DHSs) in transcription of the B cell-specific Ig-b gene and in maintenance of active chromatin state in the Ig-b locus were examined A total of 10 DHSs ... prerequisite for transcription of the Ig-b gene but not required for the maintenance of active chromatin state in the Ig-b locus Thus, epigenetic factors required for the maintenance of the active chromatin...

Ngày tải lên: 19/02/2014, 16:20

... and location of the piece of equipment; • Particulars of the equipment; • Date of examination/test; • Signature of the person who... account: • the toxicity of the agent ... and Use of Work Equipment Regulations 1998 Approved Codes of Practice guidance documents are available for each set of. .. implementation of various Regulations Many of the sources ... and safety of employees/students and the implementation of this policy resides with the Head of School / Unit (HoS/U). However, everyone is responsible for their own safety and that of others,...

Ngày tải lên: 08/03/2014, 13:20

... course of FMN and FAD synthesis after addition of 0.5 l M Rf (B) Dependence of the rate of FMN synthesis on Rf concentra-tions (C,D) Time courses of FAD synthesis and Rf appearance after addition of ... (Fig 5D), the amount of FAD increased almost linearly in the first 10 min of the reaction, at a rate of 413 pmolÆmin)1Æmg)1 protein The amount of FAD reached a maximum value of 3600 pmolÆmg)1 protein ... in yeast and bacteria All of the enzymes of Rf biosynthesis identified to date seem to reside in plastids [17] Conversion of Rf to FAD requires the sequential actions of riboflavin kinase [ATP:riboflavin...

Ngày tải lên: 16/03/2014, 04:20

... day (Fig 6A) similar to the case of gts1D [16] The growth of tdh2D was disturbed, but the cell density reached 90% of that of the wild-type at the beginning of the continuous culture (Table 2) ... at the beginning of continuous culture b The amplitude was estimated by subtracting the DO concentration (%) of the valley from that of the peak of the next wave c The number of experiments used ... heat resistance oscillator composed of machinery involved in the synthesis of trehalose [26] We hypothesized that the synthesis of trehalose parallels activation of the glycolytic pathway, and trehalose...

Ngày tải lên: 31/03/2014, 21:21

... control intervention of the same length and dura-tion of treatment, taken by therapists of the same profes-sional background and with the same specific aim of trying to develop a plan of care to stay ... are those of the authors and not necessarily those of the NHS, the NIHR or the Department of Health. Author details 1 Professor of Psychiatry and Community Mental Health, Institute of Mental ... Psychology, University of Manchester 5 Senior Lecturer in Psychology, University of Manchester 6 Reader in Medical Statistics, School of Medicine, University of Manchester.7Professor of Health Economics,...

Ngày tải lên: 11/08/2014, 15:22

... feelings of sadness or gloominess) on item (reported sadness) of the MADRS 28 Schz Initial PANSS Total score of ≥ 75, a minimum score of ≥ on one of the PANSS positive, and a minimum score of on ... Analysis All of the analyses were completed for each of the five studies individually, and tests of hypotheses were performed at a two-sided significance level of 05 As was Page of 12 (page number ... results of the KM analyses of olanzapine versus comparator for time to loss of response, http://www.biomedcentral.com/1471-244X/9/13 where loss of response was defined as a ≥ 20% worsening of the...

Ngày tải lên: 11/08/2014, 16:23

... OPERATION AND MAINTENANCE: MAINTENANCE OF PETROLEUM SYSTEMS APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED Trang 2UNIFIED FACILITIES CRITERIA (UFC) OPERATION AND MAINTENANCE: MAINTENANCE OF PETROLEUM ... this UFC is identified at its point of use Use of the copyrighted material apart from this UFC must have the permission of the copyright holder U.S ARMY CORPS OF ENGINEERS NAVAL FACILITIES ENGINEERING ... at the next revision _ This UFC supersedes AFM 85-16, Maintenance of Petroleum Systems Trang 3Civil Engineering MAINTENANCE OF PETROLEUM SYSTEMS COMPLIANCE WITH THIS PUBLICATION IS MANDATORY...

Ngày tải lên: 12/08/2014, 16:20

... Cart The MH2 hose cart contains an F/S and meter Maintenance of hose carts is the responsibility of refueling maintenance 5.15 High Level Shut-Off (HLSO) The 124AF has been upgraded to the 129AF ... Defueling Control Valve (134AF) 5.9 Dual Rate-of-Flow Control Valve (41AF) 5.9.1 The dual rate-of-flow control valve (Figure 5.7) is a combination rate-of-flow control valve and fast-closing, hydraulically ... 3Figure 5.7 Dual Rate-of-Flow Control Valve (41AF) 5.10 Recommended Setting Procedure for Rate-of-Flow Control Valve (41AF) 5.10.1 With no pressure on the system, back off on the CDHS-2 and...

Ngày tải lên: 12/08/2014, 16:20

... containment of all leaked product from the tank The leak detection system attached to the interstitial monitor is either vacuum maintenance, positive air pressure maintenance, hydrostatic pressure maintenance, ... pump the fuel off the plane and force the fuel into the hydrant loop at a rate of 1135 liters per minute (300 gallons per minute) and 165 psi 165 psi will overcome the 80-psi setting of the 58AF-9-1 ... return venturi Two of the four are for low flows with a range of 0 to 379 liters per minute (0 to 100 gallons per minute) and the remaining two are for high flows with a range of 0 to 3028 liters...

Ngày tải lên: 12/08/2014, 16:20

... bottom of storage tanks; often contains rust, scale, or dirt Specific gravity The ratio of the weight of a given volume of material at 15.5 °C (60 °F) to the weight of an equal amount of distilled ... kerosene fuel with a flash point of 60 °C (140 °F) or higher, a freeze point of -51.7 °C (-61 °F), a relative density of 48 ° to 36 ° API, and a specific gravity of 0.788 to 0.845 This fuel is ... because of its high flash point JP-8 (NATO F-34) A high-quality kerosene fuel with a flash point of 3.2 °C (37.8 °F) or higher, a freeze point of -47.2 °C (-52.9 °F), a relative density of 51...

Ngày tải lên: 12/08/2014, 16:20

... not this degree of conservation with other drosophilids can be explained by random processes of retention or loss of tandem duplicates, we analyzed the organization of 526 pairs of tan- demly duplicated ... distribution of the percent- age of retrogenes (using this extremely relaxed definition) within our set using bins of 0.1 dS and observed that the per- centage of retrogenes within our set of duplicates ... fraction of duplicated genes that do not separate over time. The same behavior was observed using, instead of dS, dN (number of non-synonymous substitutions per site) as an estimator of the relative...

Ngày tải lên: 14/08/2014, 21:20

... provisions of this part of this British Standard For dated references, subsequent amendments to, or revisions of, any of these publications do not apply For undated references, the latest edition of ... any part of an appliance flue terminal serving any combustion appliance in order to minimize the risk of re-entry of the products of combustion Where ventilation is provided via a roof space, ... the free-area measured at one end of the air vent In the absence of any such marking on a grille, louvre or duct, the sum of the free cross-sectional areas of the apertures should be used (see...

Ngày tải lên: 28/09/2014, 23:27

... implementing a maintenance program This guide emphasizes the maintenance of structural com-ponents to reduce risks associated with structural deteriora-tion The types and frequency of maintenance ... mech-anism of joint sealants is deterioration of the surfaces to which the sealant is bonded, allowing the intrusion of water and subsequent progressive failure of the sealant along the length of the ... the face of the affected column or bumper wall 3.3.3 Stair and elevator towers—Leaks often occur through joints between the deck slab and stair and elevator towers This problem can often be attributed...

Ngày tải lên: 24/10/2014, 21:59

... provided near the end of the bridge.2,4 The purpose of this joint is to prevent a buildup of pressure on the backwall of the abutment or the end of the deck caused by the expansion of the pavement.16 ... maintenance of a bridge will ex-tend its service life and reduce its operating expense.’ Nevertheless, maintenance of bridges and their ap-proaches is often the most neglected phase of highway ... in the form of a day-to-day maintenance and preventive maintenance guide The report is directed to the local maintenance su-pervisor who has the responsibility for routine bridge maintenance....

Ngày tải lên: 24/10/2014, 22:00

... Industrial Assessment Manual from the Office of Productivity and Energy Assessment at the State University of New Jersey, Rutgers, for the U.S Department of Energy Office of Industrial Technology 9.32 ... 102002-1 506, Office of Industrial Technologies, U.S Department of Energy, Washington, D.C DOE 2009 2009 Buildings Energy Data Book Prepared by Oak Ridge National Laboratory for the Office of Energy ... facilities where large amounts of process steam are used These systems use varying amounts of water depending on the size of the system, the amount of steam used, and the amount of condensate returned...

Ngày tải lên: 21/02/2014, 09:20

... 2003: 32) The basic claims of the cognitive account of metaphor, developed by Lakoff, Johnson and Turner (Lakoff and Johnson 1980, Lakoff 1987, Lakoff and Turner 1989, Lakoff 1993), and elaborated ... consideration of meaning in an incongruent way at the level of the organization of the discourse The most congruent form of joining two ideas is An investigation into the role of metaphor in description of ... forms of language that realize the genre So the context of situation (register) is the second aspect of social context that influences the linguistic realization of the genre This context of An...

Ngày tải lên: 07/11/2012, 14:44

... always consists of a first part and a second part The utterance of a first part immediately creates an expectation of the utterance of a second part of the same pair There is a class of first pair ... the basis of evidence he has In (27), there is a clash of non-observance of the maxim of Quantity and Quality A great number of similar cases are available in Vietnamese These patterns of responses ... in the case of open-ended questions, as the responses given depend on the number of possibilities anticipated in the design of the questionnaire In a study of linguistic 20 forms of a speech...

Ngày tải lên: 07/11/2012, 14:54

... made of aluminum profiles) to the external wall surface of the building This first layer defines the visual appearance of the building The next layer is an opened air gap with a minimum of cm ... one of the more affecting factors to increase the efficiency of the façade is the external air temperature The presence of ventilated façade in a building leads to a cooling effect in the skin of ... The accuracy of the result depends on the definition of the nodes The definition of a good mesh is crucial to find the optimum between the smallest number of nodes and the accuracy of the results...

Ngày tải lên: 05/09/2013, 14:58