Abstract: A method for determining an optimal fiber content and fiber slenderness ratio in compression-cast fiber-reinforced concrete (CCFRC). The method includes: step 1, determining an optimal range of pressure of CCFRC with a mix proportion; step 2, applying optimal compressive stress to a fiber-reinforced concrete mixture, and performing a uniaxial compression test after demolding and curing; step 3, keeping the slenderness ratio of the fiber in step 1 and the optimal compressive stress in step 2 unchanged, decreasing or increasing content of the fiber, and repeating step 2 to obtain a mechanical property of CCFRC with different content of the fiber; and step 4, keeping the content of the fiber in step 1 and the optimal compressive stress in step 2 unchanged, decreasing or increasing a slenderness ratio of the fiber, and repeating step 2 to obtain a mechanical property of CCFRC with a different slenderness ratio of the fiber.

Abstract: Disclosed herein is a method for eccentricity correction. This method may dispose a downhole tool into a borehole. The downhole tool may comprise a measuring assembly that has at least one transducer, determining a beam pattern from the at least one transducer, determining a center of the measurement assembly in the borehole with the beam pattern, calculating a beam pattern factor with at least the beam pattern, calculating an angle factor with at least the beam pattern, calculating an eccentricity factor with at least the beam pattern factor and the angle factor, and creating an eccentricity corrected image with at least the eccentricity factor.

Abstract: A method and system method for determining motion of a downhole tool and feeding back drilling performance. The method may comprise taking a synchronous tool face measurement of the downhole tool, taking a synchronous pulse-echo acquisition to estimate a shape of a borehole, inputting at least the shape of the borehole, the center trajectory of the downhole tool, the rotational time of the downhole tool, the position of the downhole tool, and the one or more measurements of the downhole tool into an information fusion for drilling dynamics, identifying at least one of a whirl, a vibration, or a stick-slip of the downhole tool, and identifying one or more borehole condition and a drilling efficiency. A system may comprise a downhole tool, at least two transducers, and an information handling system.

Abstract: A method for generating acoustic images corrected for distortions caused by attenuation of the ultrasonic signal by the mud may comprise disposing a downhole tool into a borehole, transmitting a pressure pulse from at least one transducer into the borehole, recording an echo with the at least one transducer, measuring a travel time, measuring an amplitude, determining a geometry of the borehole, determining a location of the downhole tool in the borehole, calculating an incident angle, mapping a mud attenuation, and correcting an image. A system for generating acoustic images corrected for distortions caused by attenuation of the ultrasonic signal by the mud comprising a downhole tool that may comprise a measuring assembly, wherein the measuring assembly comprises at least one transducer and wherein the at least one transducer is configured to emit a pressure pulse and record an echo. The system may further comprise an information handling system.

Abstract: A method for generating acoustic images corrected for distortions caused by attenuation of the ultrasonic signal by the mud may comprise disposing a downhole tool into a borehole, transmitting a pressure pulse from at least one transducer into the borehole, recording an echo with the at least one transducer, measuring a travel time, measuring an amplitude, determining a geometry of the borehole, determining a location of the downhole tool in the borehole, calculating an incident angle, mapping a mud attenuation, and correcting an image. A system for generating acoustic images corrected for distortions caused by attenuation of the ultrasonic signal by the mud comprising a downhole tool that may comprise a measuring assembly, wherein the measuring assembly comprises at least one transducer and wherein the at least one transducer is configured to emit a pressure pulse and record an echo. The system may further comprise an information handling system.

Abstract: A system for determining a borehole shape may comprise a measurement assembly, wherein the measurement assembly may comprise a housing with an outer surface, a transducer disposed flush along the outer surface of the housing, and an extruded boss that connects to the outer surface of the housing. A method may comprise disposing a downhole tool that includes an instrument section into a wellbore and transmitting an excitation from the transducer into the wellbore, wherein the excitation is reflected off a wellbore wall as an echo.

Abstract: A method of protecting a power transformer including: monitoring an external fault indication signal; carrying out locally a fault determination; carrying out locally an inrush current determination; and issuing a final trip signal to protect the power transformer if the external fault indication signal identifies that a fault has occurred and the locally carried out fault determination confirms that a fault has occurred; or the external fault indication signal identifies that a fault has occurred and the locally carried out fault determination identifies that no fault has occurred but after a predetermined delay the locally carried out inrush current determination confirms the absence of an inrush current.

Abstract: A method and system method for determining motion of a downhole tool and feeding back drilling performance. The method may comprise taking a synchronous tool face measurement of the downhole tool, taking a synchronous pulse-echo acquisition to estimate a shape of a borehole, inputting at least the shape of the borehole, the center trajectory of the downhole tool, the rotational time of the downhole tool, the position of the downhole tool, and the one or more measurements of the downhole tool into an information fusion for drilling dynamics, identifying at least one of a whirl, a vibration, or a stick-slip of the downhole tool, and identifying one or more borehole condition and a drilling efficiency. A system may comprise a downhole tool, at least two transducers, and an information handling system.

Abstract: A system for determining a borehole shape may comprise a measurement assembly, wherein the measurement assembly may comprise a housing with an outer surface, a transducer disposed flush along the outer surface of the housing, and an extruded boss that connects to the outer surface of the housing. A method may comprise disposing a downhole tool that includes an instrument section into a wellbore and transmitting an excitation from the transducer into the wellbore, wherein the excitation is reflected off a wellbore wall as an echo.

Abstract: A method for generating acoustic images corrected for distortions caused by attenuation of the ultrasonic signal by the mud may comprise disposing a downhole tool into a borehole, transmitting a pressure pulse from at least one transducer into the borehole, recording an echo with the at least one transducer, measuring a travel time, measuring an amplitude, determining a geometry of the borehole, determining a location of the downhole tool in the borehole, calculating an incident angle, mapping a mud attenuation, and correcting an image. A system for generating acoustic images corrected for distortions caused by attenuation of the ultrasonic signal by the mud comprising a downhole tool that may comprise a measuring assembly, wherein the measuring assembly comprises at least one transducer and wherein the at least one transducer is configured to emit a pressure pulse and record an echo. The system may further comprise an information handling system.

Abstract: A method of protecting a power transformer including: monitoring an external fault indication signal; carrying out locally a fault determination; carrying out locally an inrush current determination; and issuing a final trip signal to protect the power transformer if the external fault indication signal identifies that a fault has occurred and the locally carried out fault determination confirms that a fault has occurred; or the external fault indication signal identifies that a fault has occurred and the locally carried out fault determination identifies that no fault has occurred but after a predetermined delay the locally carried out inrush current determination confirms the absence of an inrush current.

Abstract: A method, system, and computer-readable medium for using competency-related information for individuals to provide a variety of benefits is described. In some situations, a history of changes that occur in individuals' competencies is tracked, such as new competencies that are attained by the individuals and/or changes in skill levels for existing competencies. A variety of additional information related to such competency changes may also be determined and tracked, such as times at which the changes occurred and/or a basis for each of the competency changes. The competency change history information can then be used to more accurately identify individuals of interest and/or to compare such individuals.

Abstract: A method, system, and computer-readable medium for using competency-related information for individuals to provide a variety of benefits is described. In some situations, competencies associated with individuals are used to assist in managing competencies associated with groups of individuals. A user can specify aggregate target competencies for a group of multiple people, such as a group of employees in an organization, and can view information about resulting competency gaps for the group based on current competencies of the group. Group competency gaps can be reduced in various ways, such as by identifying particular group members that are responsible for reducing or eliminating at least portions of the competency gaps and/or by searching for new potential group members whose current or planned competencies would similarly reduce or eliminate such competency gaps.

Abstract: A method, system, and computer-readable medium for using competency-related information for individuals to provide a variety of benefits is described. In some situations, individuals may propose self-assessments of competencies that they believe that they possess, such as specified skill levels of specified skills. Various techniques to independently approve proposed self-assessed competencies can be provided, such as by defining groups of appropriate reviewers (e.g., supervisors, peers and/or subordinates) for self-assessed competencies and by automatically retrieving and processing validation information from such reviewers upon receipt of a competency self-assessment in order to determine whether to approve the self-assessed competency.

Abstract: A method, system, and computer-readable medium for using competency-related information for individuals to provide a variety of benefits is described. In some situations, competency-related information is used to assist members of an organization in managing future career paths within the organization. An organization member can specify a starting position type and a target future position type, and one or more possible career paths leading from the starting position type to the target future position type (possibly through one or more intermediate position types) are identified. Competency gaps for the member relative to the position types along the career path can be identified, and actions to reduce those competency gaps can be identified for possible inclusion in a future action plan for the member.

Abstract: A method, system, and computer-readable medium for using competency-related information for individuals to provide a variety of benefits is described. In some situations, a history of changes that occur in individuals' competencies is tracked, such as new competencies that are attained by the individuals and/or changes in skill levels for existing competencies. A variety of additional information related to such competency changes may also be determined and tracked, such as times at which the changes occurred and/or a basis for each of the competency changes. The competency change history information can then be used to more accurately identify individuals of interest and/or to compare such individuals.

Abstract: A method, system, and computer-readable medium for using competency-related information for individuals to provide a variety of benefits are described. In some situations, users, such as managers, may request information about the skills of a group of employees. Various techniques to select the group may be provided. The type of skill information requested may include aggregate information about the skill and/or competency levels of a selected group. A competency and/or skill category hierarchy may provide the underlying structure for providing skill information. Aggregated information may include various types of information relating to skill and/or competency levels, such as skill level information, required skill level information, and target skill level information. Information for multiple groups may sometimes be provided in a single aggregation request.

Abstract: A method, system, and computer-readable medium for using competency-related information for individuals to provide a variety of benefits is described. In some situations, gaps are identified between current competencies of individuals and target competencies for those individuals, and the individuals are provided with assistance in reducing or eliminating those competency gaps. The target competencies for an individual can be identified in a variety of ways, such as in an automatic manner based on required or preferred competencies for a current organizational position held by an individual. After identifying one or more competency gaps for an individual, training courses or other learning activities can be identified that if completed or performed by the individual would reduce or eliminate those competency gaps.