Abstract: A method for simulating a response of a neutron well logging instrument includes in a computer, defining a function of neutron migration length with respect to expected radiation detector counting rate. The function is defined for selected values of formation porosity. The function is related to neutron slowing down length and neutron diffusion length. The function is weighted for formation density. An expected radiation detector counting rate is calculated in the computer using the defined function based on an initial estimation of formation porosity and density.

Abstract: A method for simulating a response of a neutron well logging instrument includes in a computer, defining a function of neutron migration length with respect to expected radiation detector counting rate. The function is defined for selected values of formation porosity. The function is related to neutron slowing down length and neutron diffusion length. The function is weighted for formation density. An expected radiation detector counting rate is calculated in the computer using the defined function based on an initial estimation of formation porosity and density.

Abstract: Athletic performance monitoring systems and methods, many of which utilize, in some manner, global positioning satellite (“GPS”) data, provide data and information to athletes and/or to equipment used by athletes during an athletic event. Such systems and methods may provide route information to athletes and/or their trainers, e.g., for pre-event planning, goal setting, and calibration purposes. Such systems and methods optionally may provide real time information to the athlete while the event takes place, e.g., to assist in reaching the pre-set goals. Additionally, data and information collected by such systems and methods may assist in post-event analysis for athletes and their trainers, e.g., to evaluate past performances and to assist in improving future performances.

Abstract: Articles of footwear and other devices include modules, e.g., for sensing physical and/or physiological characteristics associated with use of the footwear or other devices. Such devices include: (a) a housing, optionally an asymmetrical housing, for receiving an electronic module; (b) release mechanisms for removably mounting the module in the housing; and/or (c) activation/authentication systems for selectively activating the module. Additionally, methods of making articles of footwear or other structures that include such housings, electronic modules, release systems, activation systems, authentication systems, etc. are described. Performance sensing systems and methods of using the above devices for sensing performance characteristics also are described.

Abstract: Footwear systems include an article of footwear and a data transmission system engaged with the article of footwear. The transmission system transmits data to a remote system, such as a display system, another data transmission system, a processing system, etc. Such footwear systems further may include activation systems for activating the transmission and/or display systems. The transmitted data may be used for various purposes, such as: (a) identifying a user of the article of footwear; (b) activating targeted advertising or product information; (c) confirming the user's presence at a specific location and/or at a specific time; (d) determining start, finish, and/or intermediate split times for specific user; (e) confirming athletic equipment usage; (f) providing data for a game or reward program; (g) registering the user for an event or competition; or the like.

Abstract: A watch or other type of portable electronic console that employs a number of different functions in order to improve its usability. The watch may, for example, allow a user to connect the watch to one or more remote electronic devices, such as an electronic performance sensor or MP3 player. The watch then displays information related to the connected electronic devices. Still further, the watch may allow a user to control the operation of one or more connected remote electronic devices. Thus, if the watch is connected to a remote speed/distance monitor employing a calibration variable, then the watch may allow the user to adjust the calibration variable. The watch also provides a multi-tiered menu for accessing its various functions. Each operational mode in the first tier relates to a broad category of different functions of the watch, and contains one or more operational submodes in a second tier.

Abstract: Articles of footwear and footwear systems include modules, e.g., for sensing physical and/or physiological characteristics associated with use of the footwear or for performing other functions. Such systems and methods may use physical or other interaction(s) between the module and the article of footwear for activating and/or deactivating the module and/or sensing devices included with the module, for confirming whether the module and footwear are authorized for use with one another, and/or for automatic data algorithm selection methods. Additionally, such systems and methods also may use the activation and/or authentication systems for the module for data input to the module. Some examples of such systems and methods may utilize magnets and magnetic sensing systems and/or light (or other radiation) sources and sensing systems for activation, authentication, data input, and/or algorithm selection.

Abstract: Foot-receiving devices, such as articles of footwear, include: (a) a sensing device that senses a characteristic of an interaction between a user's foot and a foot-receiving device; (b) a control system that receives output from the sensing device and controls a characteristic of the foot-receiving device based on this output; and (c) a monitoring system for detecting and/or storing data indicating speed or distance information associated with use of the foot-receiving device. The monitoring system may receive input from the same sensing device used for providing data to the control system. The control system may alter the impact attenuation characteristics, the traction characteristics, the flexibility characteristics, the fit characteristics, or the like of the article of footwear. Methods of making and using such foot-receiving devices also are described.

Abstract: Athletic performance monitoring systems and methods, many of which utilize, in some manner, global positioning satellite (“GPS”) data, provide data and information to athletes and/or to equipment used by athletes during an athletic event. Such systems and methods may provide route information to athletes and/or their trainers, e.g., for pre-event planning, goal setting, and calibration purposes. Such systems and methods optionally may provide real time information to the athlete while the event takes place, e.g., to assist in reaching the pre-set goals. Additionally, data and information collected by such systems and methods may assist in post-event analysis for athletes and their trainers, e.g., to evaluate past performances and to assist in improving future performances.

Abstract: A system for promoting physical activity for video game players. A video game player wears an article of footwear with a physical activity monitor or “game pod” mounted thereon while exercising or performing some other type of physical activity. The game pod measures the amount of the player's physical activity, and records that amount in a memory. When the player desires to play a video game according to the invention, the player disengages at least the memory from the article of footwear, and then engages the memory with the computer hosting the video game through a computer interface. The computer then obtains the recorded amount of physical activity, and provides a computer function associated with the recorded amount of physical activity.

Abstract: The invention concerns a neutron measurement method for determining porosity of an earth formation surrounding a borehole comprising: conveying a tool along said borehole, wherein said tool comprises a source of neutron radiation and at least one detector axially spaced from said source; generating measured detector response for said at least one detector that is indicative of neutron radiation from said source interacting with said earth formations; operating said measured detector response with a predetermined mathematical equation and thereby obtaining corrected detector response that is independent of the density of said earth formation; and determining porosity of the earth formation surrounding the borehole from said corrected detector response. The invention also relates to a system implementing said method.

Abstract: The present invention comprises an intermediate layer for a shoe sole consisting of a hollow shell having convolutions disposed along the periphery thereof. The convolutions are adapted to cushion the foot by compressing when force is applied thereto, and expanding to their original configuration when the force is relieved. An inner filler material may be provided within the shell for added cushioning and resilience.

Abstract: A new technique, called the sensitivity function technique, has been developed for modeling nuclear density tools. Specifically, sensitivity functions relate a change in formation properties to a change in detector response and are based on the first order perturbation expansion of the radiation transport equation. The sensitivity function is a quasi-linear model which works extremely well over a wide range of mudcake and formation conditions, as shown by extensive benchmark comparisons against actual tool measurements. The detector responses are calculated by a convolution of density sensitivity functions, calculated in a separate set of Monte Carlo computer runs, with the formation properties and is extremely fast. Because this technique is both fast and accurate, it represents a significant advance in the ability to model gamma-gamma density tools and will allow the use of fast forward modeling to improve the log interpretation process.

Abstract: The present invention comprises an intermediate layer for a shoe sole consisting of a hollow shell having convolutions disposed along the periphery thereof. The convolutions are adapted to cushion the foot by compressing when force is applied thereto, and expanding to their original configuration when the force is relieved. An inner filler material may be provided within the shell for added cushioning and resilience.