This paper discusses the role of knee positioning and range-of- motion on the closed-stance forehand tennis swing. The analyses of tennis swing mechanics were performed using a computer model comprised of a full-body model of a human and an inertial model of a racket. The model was driven by subject forehand swings (16 female college-level subjects) recorded with a high-speed digital motion ana...

We construct uniformly bounded solutions for the equations divU = f and curlU = f in the critical cases f ∈ L # (T ,R) and f∈ L # (R,R). Bourgain& Brezis, [BB03, BB07], have shown that there exists no linear construction for such solutions. Our constructions are special cases of a general framework for solving linear equations of the form LU = f , where L is a linear operator densely defined in...

Closed-loop control of an electrostatically actuated micropositioner using integrated feedback sensors is reported. A photodiode-based position sensing mechanism has been incorporated into a variablecapacitance micromotor supported on microball bearings with a range of 4 mm and a resolution of 120!m. Accurate and reliable positioning has been demonstrated using a proportional control law and th...

Natural scenes often have a dynamic range (DR, rang of luminance) of up to 6 decades. An image sensor has to resolve this range with approximately 100 values per decade to generate a digital representation containing all details relevant for surveillance [Hecht, Kandel]. Since conventional CCD image sensors have a DR of 2,5 decades (mapped to 8 bit), they are not applicable for surveillance of ...

This paper describes the current design characteristics and performance capabilities of the US Army Missile Command's (USAMICOM's) diode laser based infrared scene projector technology. The projector is now operational at the US Army Missile Command's Research, Development, and Engineering Center (RDEC) and is being integrated into several HWIL simulation facilities. The projector is based upon...

Arenas et al. [1] introduced the notion of lambda-closed sets as a generalization of locally closed sets. In this paper, we introduce the notions of lambda-locally closed sets, Lambda_lambda-closed sets and lambda_g-closed sets and obtain some decompositions of closed sets and continuity in topological spaces.

AIMS To compare overnight closed-loop and sensor-augmented pump therapy in patients with type 1 diabetes by combining data collected during free-living unsupervised randomized crossover home studies. METHODS A total of 40 participants with type 1 diabetes, of whom 24 were adults [mean ± standard deviation (s.d.) age 43 ± 12 years and glycated haemoglobin (HbA1c) 8.0 ± 0.9%] and 16 were adoles...

The main difficulty for the readout electronics of the ATLAS LARG calorimeter is to handle the 16 bit dynamic range without spoiling the signal to noise ratio. A possible way out is to split the input signal in four « ranges » with different gains and to select the most appropriate. Then, each subrange only requires 10 bits, a much more manageable number. A four gain shaper circuit has been suc...

An innovative technique for the enhancement of digital color images captured under extremely nonuniform lighting conditions is proposed in this paper. The key contributions of this technique are adaptive intensity enhancement, contrast enhancement and color restoration. Simultaneous enhancement of extreme dark and bright intensity regions in an image is performed by a specifically designed Loca...

This issue contains peer-reviewed papers from a workshop on Closed Ecological Systems: Earth and Space Applications at the 35th COSPAR General Assembly in Paris, France, convened in July 2004. The contributions reflected the wide range of international work in the field, especially Europe, Russia, Japan, and the United States. The papers are arranged according to four main themes: 1) Methods of...