On the basis of comparative principles of engineeringeconomics, this paper has made an analysis of the technologyand operation properties of auxiliary brakes of drilling rigs. With the help of the theory and methods of the service lifecharges and annual cost, the paper also has come up enginee-ring economic rules for designing, manufacturing and selectingeddy current brake and hydraulic brake with automatic water-level regulating device.

The IMS software system can be used in computer aided overall design of warehouse to define bin sizes,rack dimensions on basis of static as well as dynamic analysis of the rack,work out investment and annual cost and make comparison among vairous design alternatives with the output of computational results.

Taking the concrete equipment in subsidiary company of Enterprises Development Company of SPC as example,this paper analyzed the economic life,annual cost oi equipment with dynamic eco -tech index,namely,time value of capital,aiming to provide basis for decision - making in selecting optimal renewal period of equipment and rational renewal scheme.

After the prediction, taking the lowest value of ship cargo and port (berth) expenses per year (AAC)as target function the mixed integral optimizing model is applied to derive the most reasonable shiptype, line and berth from the view point of system engineering. At the same time.

Abstract Methods for economical assessment of water treatment technologies including static economical estimation and annual equivalent cost calculation are conducted from the eminent economical estimation procedures for the technologies in other fields

Studying the initial investment ,the running cost and the energy consumption of different kinds of refrigerators in the present price give the point that direct fired (coke oven gas)lithium─bromide absorption chiller is only used widely in the district of rich coke oven gas.

In this paper,a reasonable maintaining plan and strategy for replacing diesel are put forward; that means to set up a mathematical pattern of maintaining plan,to optimize a function with year-cost as the lowest target and to extract the optimum moment for renewal diesel.

The objective function is the total annual cost (TAC).

Ways of reducing the annual cost of production are sought (by 40.5 million rubles in plant growing and by 13.7 million rubles in animal husbandry).

Obstructive sleep apnea (OSA) is a major public health problem in the US that afflicts at least 2% to 4% of middle-aged Americans and incurs an estimated annual cost of 3.4 billion dollars.

The annual cost to treat prostatitis is approximately $84 million.

It results in enormous societal burden, including the need for joint replacement at an annual cost to the community of billions of dollars.

Among women with no comorbid urinary diagnoses, approximately 11% ($769; SD $1180) of total mean regression-adjusted annual expenditures ($6892; SD $5067) was attributable to UI.

We concluded that after diagnosis, annual expenditures for patients were roughly twice those in the year prior to diagnosis.

In spite of increasing annual expenditures for flood control, losses from flooding continue to rise in the United States.

We find that total annual expenditures are $4,027 higher for about-to-be-widowed households compared to otherwise comparable continuously married couples.

Average annual expenditures per youth for outpatient therapy were greater for youth with schizophrenia spectrum disorders.

A separate annual charge is agreed for each project based on full cost recovery.

For multifamily units, there is a $150 per unit annual charge.

There is an annual charge for administration costs payable to your CAIS Administration.

The fixed commitments this farm could afford to carry to minimize downside risk would appear to be an annual charge of $150 per hectare.

Whilst an annual charge is levied on parking spaces, there are rebates for electric and LPG vehicles.

On the basis of comparative principles of engineeringeconomics, this paper has made an analysis of the technologyand operation properties of auxiliary brakes of drilling rigs.With the help of the theory and methods of the service lifecharges and annual cost, the paper also has come up enginee-ring economic rules for designing, manufacturing and selectingeddy current brake and hydraulic brake with automatic water-level regulating device.

A set of methods for optimizing the characteristic elements of sea-transportation systems of coal in China are presented in this paper.It consistsof three steps:(1)Based on the queueing theory in combination with theMonte Carlo experimental method sea-transportation operations for a specialroute are simulated.Variables considered in this step are ship's demensions,number of berths and their capacity,type of loading/unloading facilities andtheir rate.Through calculation,the relationships between ship,berth andloading/unloading...

A set of methods for optimizing the characteristic elements of sea-transportation systems of coal in China are presented in this paper.It consistsof three steps:(1)Based on the queueing theory in combination with theMonte Carlo experimental method sea-transportation operations for a specialroute are simulated.Variables considered in this step are ship's demensions,number of berths and their capacity,type of loading/unloading facilities andtheir rate.Through calculation,the relationships between ship,berth andloading/unloading facilities are revealed.(2)The goal programming methodis used to study the entire coal sea-transportation system in multi-route cases.The goals concerned in this step are AAC,investment amounts and steelconsumption according to the concept of goal preference.Changes of resultsare also discussed when the structures of goals are changed.(3) Based on theabove two steps,the main demensions of ships are optimized in detail interms of the nonlinear programming method.It can be seen from the resultsthat most of the ships are short and full with C_B>0.8,B/T>3.0,5.0

The paper carries out a quantitative analysis on the passanger—cargo capacity of the ro—ro transportation. Multi—principle hinterland dividing method and gravity model are used in the estimation of cargo capacity where the induced transportation capacity caused by the reduced transportation period was taken into consideration. Whereas a grey model is used in the prediction of passanger transportation. After the prediction, taking the lowest value of ship cargo and port (berth) expenses per year (AAC)as target...

The paper carries out a quantitative analysis on the passanger—cargo capacity of the ro—ro transportation. Multi—principle hinterland dividing method and gravity model are used in the estimation of cargo capacity where the induced transportation capacity caused by the reduced transportation period was taken into consideration. Whereas a grey model is used in the prediction of passanger transportation. After the prediction, taking the lowest value of ship cargo and port (berth) expenses per year (AAC)as target function the mixed integral optimizing model is applied to derive the most reasonable shiptype, line and berth from the view point of system engineering. At the same time. traditional passanger-eargo ship is also taken as one of the schemes in the comparison of the economy between passenger/ro—ro ship and passenger/cargo ship, Finally, calculations are carried out with the Dalian/ Yantai, Dalian/Tianjin and Yantai/Tianjin course as examples.