Abstract: A dual-cycle heat engine employing a first cycling working fluid and a second cycling working fluid whose cycles overlap when fused into a combined working stream so as to preserve compression heat generated during compression of the first working fluid thereby yielding enhanced work extraction when complying with additional thermodynamic requirements.

Abstract: An improved heat engine employing a dual-component working fluid and configured to generate internal heat from one component of the working fluid that heats the other component through the physical contact between them such that together with the addition of external heat, the engine advantageously yields enhanced work extraction efficiency through separate, parallel expansion of each of the working fluids.

Abstract: An improved heat engine employing a dual-component working fluid and configured to generate internal heat from one component of the working fluid that heats the other component through the physical contact between them such that together with the addition of external heat, the engine advantageously yields enhanced work extraction efficiency through separate, parallel expansion of each of the working fluids.

Abstract: A precursor to an elastomeric composition with improved properties is disclosed. The precursor comprises a cross-linkable rubber, a thermoplastic vulcanizate, and a cross-linking agent. An elastomeric composition produced by cross-linking of the rubber in the precursor and methods for manufacture of the precursor and the elastomeric composition are disclosed as well.

Abstract: A dual-cycle heat engine employing a first cycling working fluid and a second cycling working fluid whose cycles overlap when fused into a combined working stream so as to preserve compression heat generated during compression of the first working fluid thereby yielding enhanced work extraction when complying with additional thermodynamic requirements.

Abstract: A composite material for storing thermal energy at various temperatures (30° C. to 450° C.) formed by an elastomer matrix into which a phase change material such as an inorganic salt is encapsulated. The material is characterized by a high volumetric thermal conductivity, a low density, a highly interconnected porosity and a relatively high modulus of elasticity. The significant properties of the matrices are: a large amount of energy involved in full melting/crystallization, a fairly low relative volume expansion upon melting and fairly low sub-cooling. The main advantages of the resulting composites are a very high energy density, a relatively low volume expansion, highly enhanced heat transfer, thermo adaptability, stability and insignificant hysteresis.

Abstract: A small size, robust stimulated Raman scattering (SRS) spectrophotometer system for industrial, medical and field use, exhibiting high SNR, high resolution and very short acquisition times. The architecture of the system allowing for such features comprises three main elements: (1). Use of a narrow range tunable pump laser and an array of fixed wavelength lasers to produce the wavelength differences as required to generate the SRS (Raman) spectrum; (2). Application of analog signal processing, prior to the digital conversion, in order to obtain higher resolution and SNR; (3). Use of relatively inaccurate or unstable laser sources coupled to calibration samples, followed by various calibration methods to compensate for system instabilities, such as wavelength drift, laser inaccuracies, and variations in the optical components/elements of the system.

Abstract: A small size, robust stimulated Raman scattering (SRS) spectrophotometer system for industrial, medical and field use, exhibiting high SNR, high resolution and very short acquisition times. The architecture of the system allowing for such features comprises three main elements: (1). Use of a narrow range tunable pump laser and an array of fixed wavelength lasers to produce the wavelength differences as required to generate the SRS (Raman) spectrum; (2). Application of analog signal processing, prior to the digital conversion, in order to obtain higher resolution and SNR; (3). Use of relatively inaccurate or unstable laser sources coupled to calibration samples, followed by various calibration methods to compensate for system instabilities, such as wavelength drift, laser inaccuracies, and variations in the optical components/elements of the system.

Abstract: A composite material for storing thermal energy at various temperatures (30° C. to 450° C.) formed by an elastomer matrix into which a phase change material such as an inorganic salt is encapsulated. The material is characterized by a high volumetric thermal conductivity, a low density, a highly interconnected porosity and a relatively high modulus of elasticity. The significant properties of the matrices are: a large amount of energy involved in full melting/crystallization, a fairly low relative volume expansion upon melting and fairly low sub-cooling. The main advantages of the resulting composites are a very high energy density, a relatively low volume expansion, highly enhanced heat transfer, thermo adaptability, stability and insignificant hysteresis.

Abstract: A novel precursor is disclosed. The precursor comprises (a) natural or synthetic rubber; (b) a material selected from the group consisting of thermoplastic vulcanizate (TPV), thermoplastic incorporating microparticles of rubber, and any combination thereof; and (c) a cross-linking agent. In some embodiments, the precursor additionally comprises components such as a cross-linking co-agent, carbon black, fillers. The incorporation of thermoplastic in to the precursor enables the inclusion of carbon black or other fillers without any necessity for addition of plasticizers or process oils.

Abstract: A precursor to an elastomeric composition with improved properties is disclosed. The precursor comprises a cross-linkable rubber, a thermoplastic vulcanizate, and a cross-linking agent. An elastomeric composition produced by cross-linking of the rubber in the precursor and methods for manufacture of the precursor and the elastomeric composition are disclosed as well.