Question To assess the effectiveness of low level laser therapy (LLLT) in the treatment of rheumatoid arthritis (RA). Data sources MEDLINE, EMBASE and The Cochrane Controlled Trials Register (CENTRAL) up to June 2005. Reference lists from relevant articles were scanned. Relevant studies were also traced by contacting experts. Study selection Randomised controlled trials of patients with RA whic...

The subject can be broadly classified under two headings: Water Treatment and Combustion. It is not the object of this paper to elaborate the methods of running efficiency tests and their attendant calculations, but rather to discuss the laboratory and factory work of the chemist in this more or less engineering subject. I think we can safely say that the day is past when accidents and expensiv...

In this paper, we give an overview of the power line communication (PLC) technology. This paper presents an overview of the research, applications, standards and importance of the power line communication. Power line communication is an emerging home network technology that allows consumers to use their already existing wiring system to connect home appliances to each other and to the Internet....

Wireless sensor nodes may have power requirements as low as microwatts, and while batteries suitable for such applications may have lifetimes in years, inexhaustible supplies which scavenge energy provide an interesting alternative. This paper reviews the approaches to powering micro-sensor nodes.

This paper presents techniques derived from empirical modelling methods and especially designed to tackle the recognition of dynamic transients with the aim of detecting and diagnosing faults and anomalies in equipment and processes. Applications and results are also presented, covering BWR and PWR plants and spanning from component level diagnostic applications to sub-system and plant level di...

For vibration testing, discrete types of scanning laser Doppler vibrometer (SLDV) have been developed and have proven to be very useful. For complex structures, however, SLDV takes considerable time to scan the surface of structures and require large amounts of data storage. To overcome these problems, a continuous scan was introduced as an alternative. In this continuous method, the Chebyshev ...

With the development of new generation technology and the low-carbon economy, the smart low-carbon city has become one of the academic hotspots. Many studies on it have begun; however, the dynamic mechanism is rarely involved. Therefore, this paper uses the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) method to creatively take a quantitative study on a Chinese smar...

Manipulating the flow of energy in nanoscale and molecular photonic devices is of both fundamental interest and central importance for applications in light energy harvesting optoelectronics. Under erratic solar irradiance conditions, unregulated power fluctuations in a light-harvesting photocell lead to inefficient energy storage in conventional solar cells and potentially fatal oxidative dama...

Abstract. Mechanical efficiency analysis is a fundamental phase in the design of Power Gear Trains (PGTs) transmissions. This paper presents a methodology for computing the mechanical efficiency of Epicyclic Gear Trains (EGTs). A novel feature of this methodology is the capability to take into account load dependent power losses and inertia effects. Finally, the paper describes an apparatus use...