A compact and cost effective design for cell phone zoom lens

2007 ◽  
Author(s):  
Chir-Weei Chang ◽  
Ching-Chin Wu
Keyword(s):  
Cell Phone ◽  
Cost Effective ◽  
Zoom Lens ◽  
Effective Design

Price structures for electricity supply and potential consequences for building services systems

2021 ◽  
pp. 014362442199081
Author(s):  
Roger Hitchin
Keyword(s):  
Cost Effective ◽  
Building Design ◽  
Electricity Supply ◽  
Cooling Systems ◽  
Price Structure ◽  
Heating And Cooling ◽  
Future System ◽  
The Cost ◽  
Supply Systems ◽  
Effective Design

Policies to reduce carbon emissions are leading to substantial changes in the demand for electricity and to the structure of electricity supply systems, which will alter the cost structure of electricity supply. This can be expected to result in corresponding changes to the price structure faced by customers. This note is an initial exploration of how possible new price structures may impact on HVAC system and building design and use. Changes in the price structure of electricity supply (separately from changes in price levels) can significantly affect the cost-effective design and operation of building services systems; especially of heating and cooling systems. The nature and implications of these changes can have important implications for future system design and operation.

Polymorphic Control for Cost-Effective Design of Optical Networks

2000 ◽  
Vol 11 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Qiao Chunming ◽  
Mei Yousong ◽  
Yoo Myungsik ◽  
Zhang Xijun
Keyword(s):  
Optical Networks ◽  
Cost Effective ◽  
Effective Design

scholarly journals Optimization Study of Tilt Angle for Single Slope Solar Still

2021 ◽  
Vol 9 (VIII) ◽  
pp. 161-167
Author(s):  
Onkar Joshi
Keyword(s):  
Rural Communities ◽  
Tilt Angle ◽  
Potable Water ◽  
Cost Effective ◽  
Solar Still ◽  
Copper Sheet ◽  
Black Paint ◽  
Optimization Study ◽  
Rate Of Evaporation ◽  
Effective Design

Water is essential to life. The origin and continuation of mankind is based on water. The supply of drinking water is an important problem for the developing countries. The wooden box has a thickness of 8mm. It consists of a top cover of transparent glass with a tilt of 18°, 26° and is coated with black paint to absorb the maximum possible solar energy. The yield of the single basin solar still is very less and it increases considerably when the solar still was built with copper sheet. An analysis of single slope solar still has done on different tilt angle to optimizing study of tilt angle. They greatly improve the rate of evaporation and the rate of condensation on the cooler surface. The efficiency is higher for solar still made up of copper sheet and its output we have got 1.24 for 18° angle. The optimized tilt angle gave more efficiency than other tilt angle. The optimize water depth is 18mm for 18° angle. This cost-effective design is expected to provide the rural communities an efficient way to convert the brackish water in to potable water.

Strength Development of Cemented Tailings Materials Containing Polycarboxylate ether-based Superplasticizer: Experimental Results on the Effect of Time and Temperature

2020 ◽  
Author(s):  
Sada Haruna ◽  
Mamadou Fall
Keyword(s):  
Cost Effective ◽  
Curing Temperature ◽  
Strength Development ◽  
Strength Increase ◽  
Type I ◽  
Cement Type ◽  
New Findings ◽  
Polycarboxylate Ether ◽  
Effective Design ◽  
Furnace Slag

This paper presents new findings of research conducted to experimentally assess the effects of a polycarboxylate-based superplasticizer on the strength of CPB subjected to varying curing time and temperature (2°C, 20°C, and 35°C). The binders used were Portland cement type I, fly ash and blast furnace slag. The results obtained show that the unconfined compressive strength (UCS) of the CPB containing polycarboxylate-based superplasticizer increases with time. Moreover, the increase in superplasticizer content was observed to improve the UCS of the CPB. Temperature was also observed to play an important role in strength development as the UCS increases with the rise in the curing temperature for all samples. It is also found that the temperature-induced strength increase is more significant for the CPBs that contain the superplasticizer than for those without superplasticizer. The findings from this study will be useful towards cost-effective design of backfill structures.

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