Delivery time

In Chap. 9 we shall examine the flow of a solution through a capillary tube. The rate of volume delivery in that case is given by Poiseuille s law [Eq. (9.29)], which states that the time required for a constant volume of liquid to drain out of the capillary is proportional to r jp. Accordingly, the viscosity is proportional to the product pt, and when the delivery times for two liquids are compared in the same capillary. 

Equipment Availability. In many cases the equipment is not available off the shelf, and the delivery time may be lengthy hence, adequate planning is necessary to ensure that the commissioning date can be met with the plant selected. 

In telephone sales transactions or transactions made by a sales person without involving others in the organization, the sales personnel need to be provided with current details of the products and services available, the delivery times, prices, and procedures for varying the conditions. 

One of the factors requiring improvement is service and this can be construed to include timing. This can relate not only to delivery timing but also reduction in lead time. When new processes become stabilized over long periods and the frequency of improvement reduces as more and more problems are resolved, you will be able to reduce lead time. 

The reason for this requirement is so that data from the customer can be transmitted quickly and reliably. The customer may need to change quantities and delivery dates due to variations in production. This does not mean the changes will always be to shorten delivery times but on occasions the delivery times may need to be extended owing to problems on the assembly line or as a result of problems with other suppliers. The customer may not have made provision to store your product so urgently needs to be able to inform you to hold or advance deliveries. 

D. Performance characteristics. (Usually includes following electrical characteristics efficiency, power-factor, locked rotor KVA, fullload speed, temperature rise and starting, break-down, and full-load torques.) Be sure to advise whether special test certification is to be furnished this always extends delivery time and increases cost. 

Provide an informative management tool for the monitoring and control of progress, including the effect of changing circumstances that so often occur in the form of extended delivery time scales, revised requirements and new external constraints on the project completion date. 

Wherever possible, items should be made from materials which have proved themselves in similar service. Essential items of plant for which long delivery times are expected should be considered most carefully. The possible interactions between items fabricated from different materials should be considered. Section 53.1.2 discusses galvanic corrosion. 

To test the delivery time, again separate the components of the stopcock, dry, grease and reassemble, then fill the burette to the zero mark with distilled water, and place in the holder. Adjust the position of the burette so that the jet comes inside the neck of a conical flask standing on the base of the burette stand, but does not touch the side of the flask. Open the stopcock fully, and note the time taken for the meniscus to reach the lowest graduation mark of the burette this should agree closely with the time marked on the burette, and in any case, must fall within the limits laid down by BS 846 (1985). 

It should be recognized that surface finish can be more than just a cosmetic standard. It also affects product quality, mold or die cost, and delivery time of tools and/or products. The surface can be used not only to enhance clarity for the sake of appearance but to hide surface defects such as sink and parting marks. The Society of Plastics Engi-neers/Society of Plastics Industries standards range from a No. 1 mirror finish to a No. 6 grit blast finish. A mold finish comparison kit consisting of six hardened tool steel pieces and... 

Normal conditions mean that only minor amounts of overtime are involved, that an adequate number of competent tradesmen can be found, and that scheduled delivery times for equipment and supplies will be met. No provisions are made for work stoppages or slowdowns due to labor unrest. 

The contractor may be in charge of procuring all the equipment, or the contracting company s purchasing department may have ordered all the major equipment. The latter may be necessary when the equipment delivery times are long, if the plant is to be completed on schedule. In November 1973, a buyer would have faced a wait of 78 weeks after he placed a firm order for a compressor before he received... 

Especially in an industrial environment conditional demand is an important concept. This is because orders usually allow for some delivery time. This delivery time is in many cases long enough to be taken into account in production scheduling. As the deadline for orders for a certain date of delivery comes closer one can compare the original forecast with the orders that were already received. It is intuitively clear that if many orders were already received this implies a somewhat increasing forecast with less uncertainty. Sometimes orders that were already received can be used to automate the forecast to a certain extent because one knows that usually 25% are ordered four weeks in advance, 50% are ordered two weeks in advance and the like. We assume here that there is a valid latest forecast at the point in time where a decision on the next production volume is necessary and the orders that were already received are taken into account at that fixed point in time. 

System response time can be divided into two phases. The first is the detection time, that is the time from the actual detection of the fire to the time that the signal is amplified and fires the primer in the water control valve or opens the solenoid valve. The second phase is the time required from primer firing or valve opening to the time water exits from the fire protection nozzles. The detection time is the fastest phase and under ideal conditions can be accomplished in as little as 10 milliseconds. The second phase, water delivery time, is the source of most of the time consumption. 

By itself, the use of object-oriented programming is not enough to get stupendous improvements in software delivery times, development costs, and quality. Some people... 

The students used the Gantt chart to plan and monitor the project progress. Each team prepared a detailed list of tasks, milestones and deliverables. A timeline was constructed based on the completion time, delivery schedule and estimated time needed to complete each tasks. The Gantt chart enabled the students to identify dependency between various tasks and recognize potential bottlenecks in the project. The critical tasks, scheduled tasks, completion dates and delivery time were clearly labeled. Each week the teams met to discuss and update the Gantt chart, as old tasks were completed and new one started. 

The British Standards Institution (BSI) has laid down the permitted tolerances and delivery times for commonly used bulb transfer pipettes as shown in Table 2.5. 

Table 2.5 Tolerances and Delivery Times for One-Mark Pipettes ...

Screw design for these large machines is very complex, and their manufacture is very costly and has a long delivery time. Very large screws can take more than six months to fabricate and only a few manufacturers have adequately sized machining equipment. Moreover, since the extruder is a necessary component of a resin pro-... 

The vendor shall submit complete parts lists for all equipment and accessories supplied. The lists shall inelude manufaeturer s unique part numbers, materials of eonstrae-tion, and delivery times. Materials shall be identified as specified in 2.11.1.2. Eaeh part shall be eompletely identified and shown on eross-sectional or assembly-type drawings so that the purchaser may determine the interchangeability of these parts with other equipment. Parts that have been modified from standard dimensions and/or finish to satisfy specific performance requirements shall be imiquely identified by part munber for interchangeability and future duplication pmposes. Standard purchased items shall be identified by the original manufacturer s name and part number. 

It is possible to check the calibration of a pipet, flask, or buret. The process involves weighing with a calibrated analytical balance. The volume of water (temperature noted) delivered or contained by the glassware is weighed. Then the analyst converts this weight to volume (using the density of water at the temperature noted), corrects the result to 20°C (the usual temperature of the factory calibration), and compares it to the factory calibration. If the difference is not tolerable, the piece of glassware is either not used for accurate work or a correction factor is applied. It should be pointed out that the thermometers used must be properly calibrated and that the timer used to measure the delivery time for the burets and pipets must also be calibrated. 

Joint design and selection generally involves compromising between the ideal and practical. A number of manufacturers produce patented or proprietary joints that embody many ideal characteristics. Some are excellent products and are well suited to special applications. Valves and fittings are often available with proprietary joints that have gained wide acceptance however, consideration should be given to the possible impact on product delivery time and cost. 

High early strengths at reduced costs (use of lower cement contents, alternative cement) are attained so that forms are stripped earlier and rapid delivery time is ensured. 

Accommodating special customer needs (product quality, delivery times, terms of trade, type and size of package)... 

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