Abstract: A method for providing a rock bolt (2) for rock bolting, wherein a rock bolt (2) having a tubular bolt portion (4) with a closed cross section is inserted and expanded for bearing contact in a bore hole (3) in a rock structure (1). The length of the tubular bolt portion (4) is determined such that maximum frictional force at pulling inside a bore hole (3) of a rock bolt with a tubular bolt portion with this length is below a predetermined maximum value. The invention also concerns a rock bolt.

Abstract: A computerized method and system for testing a function of an information-processing system. This includes providing an architecture having a set of test commands, the test commands including a set of one or more stimulation commands and a set of one or more result-testing commands, and defining a set of test verbs out of combinations of the test commands. This allows the test programmer to define an overall test program that uses the test verbs in writing a test program that specifies an overall function that will extensively test a system-under-test. The methods further includes executing a program that includes a plurality of test verb instructions and outputting a result of the program. In some embodiments, the present invention provides a computer-readable media that includes instructions coded thereon that when executed on a suitably programmed computer executes one or more of the above methods.

Abstract: All structures and mechanical systems possessing mass and elasticity have vibrational responses. The vibrational responses are the result of cyclic exchanges of kinetic and potential energy within the system. These vibrational responses, when properly aligned, phased and conditioned, can be used to create propulsion. There are as many possible embodiments of this invention as there are structures and mechanical systems types. The preferred embodiment disclosed here, to demonstrate the invention, is based on a beam type structure.

Abstract: A method and system for assessing a level of refrigerant in a vehicle air conditioning system. A refrigerant charge value is determined as a function of ambient air temperature, ambient air humidity, conditioned air temperature, and compressor cycling signals. The refrigerant charge value is compared to a threshold value to determine whether the level of refrigerant is acceptable.

Abstract: A computerized method and system for testing a function of an information-processing system. This includes providing an architecture having a set of test commands, the test commands including a set of one or more stimulation commands and a set of one or more result-testing commands, and defining a set of test verbs out of combinations of the test commands. This allows the test programmer to define an overall test program that uses the test verbs in writing a test program that specifies an overall function that will extensively test a system-under-test. The methods further includes executing a program that includes a plurality of test verb instructions and outputting a result of the program. In some embodiments, the present invention provides a computer-readable media that includes instructions coded thereon that when executed on a suitably programmed computer executes one or more of the above methods.

Abstract: A computerized method and system for testing a function of an information-processing system. This includes providing an architecture having a set of test commands, the test commands including a set of one or more stimulation commands and a set of one or more result-testing commands, and defining a set of test verbs out of combinations of the test commands. This allows the test programmer to define an overall test program that uses the test verbs in writing a test program that specifies an overall function that will extensively test a system-under-test. The methods further includes executing a program that includes a plurality of test verb instructions and outputting a result of the program. In some embodiments, the present invention provides a computer-readable media that includes instructions coded thereon that when executed on a suitably programmed computer executes one or more of the above methods.

Abstract: A computerized method and system for testing a function of an information-processing system. This includes providing an architecture having a set of test commands, the test commands including a set of one or more stimulation commands and a set of one or more result-testing commands, and defining a set of test verbs out of combinations of the test commands. This allows the test programmer to define an overall test program that uses the test verbs in writing a test program that specifies an overall function that will extensively test a system-under-test. The methods further includes executing a program that includes a plurality of test verb instructions and outputting a result of the program. In some embodiments, the present invention provides a computer-readable media that includes instructions coded thereon that when executed on a suitably programmed computer executes one or more of the above methods.

Abstract: An apparatus for detecting unwanted noise includes a reference sensor that generates a reference signal in response to stimulation by a source. A combined noise detector picks up a combined noise signal, which includes both background noise and the unwanted noise generated by the source. A noise separation synthesis device filters both signals to generate a coherent unwanted noise signal from the combined noise signal as a function of the reference signal generated by the reference sensor. A comparator determines the presence of unwanted noise by calculating the Kurtosis value of the coherent unwanted noise signal.

Abstract: A computerized method and system for testing a function of an information-processing system. This includes providing an architecture having a set of test commands, the test commands including a set of one or more stimulation commands and a set of one or more result-testing commands, and defining a set of test verbs out of combinations of the test commands. This allows the test programmer to define an overall test program that uses the test verbs in writing a test program that specifies an overall function that will extensively test a system-under-test. The methods further includes executing a program that includes a plurality of test verb instructions and outputting a result of the program. In some embodiments, the present invention provides a computer-readable media that includes instructions coded thereon that when executed on a suitably programmed computer executes one or more of the above methods.

Abstract: A computerized method and system for testing a function of an information-processing system. This includes providing an architecture having a set of test commands, the test commands including a set of one or more stimulation commands and a set of one or more result-testing commands, and defining a set of test verbs out of combinations of the test commands. This allows the test programmer to define an overall test program that uses the test verbs in writing a test program that specifies an overall function that will extensively test a system-under-test. The methods further includes executing a program that includes a plurality of test verb instructions and outputting a result of the program. In some embodiments, the present invention provides a computer-readable media that includes instructions coded thereon that when executed on a suitably programmed computer executes one or more of the above methods.

Abstract: A method of objectively and subjectively monitoring noise and correspondingly level or loudness thereof in a product or assembly. The method includes placing a product on the vibration generator. Activating the vibration generator to move or shake the product to simulate usage conditions. A sound recording instrument measures and records the noise emitted by the product or assembly. An objective metric or N10 level is computed from the recorded noise. The objective metric or N10 level is compared to a threshold metric or threshold N10 level. When the objective metric or N10 level exceeds the threshold metric or threshold N10 level, an operator or technician subjectively evaluates the vehicle to determine the source of the noise and performs any repairs necessary along with documenting those repairs.

Abstract: A sound detector device for locating and diagnosing sound in a motor vehicle includes a headphone and a plurality of directional microphones. The sound detector device also includes a main unit having a circuit operatively connected to the headphone and the directional microphones for allowing an operator to diagnose sound in the motor vehicle.

Abstract: Impulsive sound components in a composite sound signal are separated using wavelet analysis and sorting of wavelet coefficient sets according to statistical parameters of each respective coefficient set. Each entire coefficient set is either included or excluded from each respective separated component based on the statistical parameter. Once the impulsive sound component is isolated, it is compared with reference sound information in order to classify the sound according to its potential causes.

Abstract: The recreation of vibration levels at certain points in a stationary vehicle interior that are representative of realistic road conditions are achieved using road measurements in conjunction with a technique known as "reciprocal filtering." The reciprocal filtering technique consists of using an inverse transfer function, or impulse response in the time domain, between an excitation transducer and an accelerometer to calculate the excitation signal needed to recreate the vibrations measured on the road when squeak and rattle are present in a component of the vehicle. A set of excitation signals may be recorded for each component in the vehicle which is suspected of producing squeak and rattle noise. When a complaint is made that a vehicle is producing squeak and rattle, a service technician may reproduce noise by inducing vibrations through a kit having a CD player, an amplifier, a bass shaker and a CD with the set of excitation signals stored on separate tracks thereof.

Abstract: The recreation of vibration levels at certain points in a stationary vehicle interior that are representative of realistic road conditions are achieved using road measurements in conjunction with a technique known as "reciprocal filtering." The reciprocal filtering technique consists of using an inverse transfer function, or impulse response in the time domain, between an excitation transducer and an accelerometer to calculate the excitation signal needed to recreate the vibrations measured on the road when squeak and rattle are present in a component of the vehicle. A set of excitation signals may be recorded for each component in the vehicle which is suspected of producing squeak and rattle noise. When a complaint is made that a vehicle is producing squeak and rattle, a service technician may reproduce noise by inducing vibrations through a kit having a CD player, an amplifier, a bass shaker and a CD with the set of excitation signals stored on separate tracks thereof.