The Experts below are selected from a list of 42 Experts worldwide ranked by ideXlab platform
Anna Sandiford - One of the best experts on this subject based on the ideXlab platform.
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maximising trace soil evidence an Improved Recovery Method developed during investigation of a 26 million bank robbery
Forensic Science International, 2011Co-Authors: Alastair Ruffell, Anna SandifordAbstract:Abstract Obtaining as much particulate material as possible from questioned items is desirable in forensic science as this allows a range of analyses to be undertaken and the retention of material for others to check. A Method of maximising particulate Recovery is described using a kidnap case, where minimal staining on clothing (socks) remained as possible indications of where the victim had been held captive. Police intelligence led to a hostage scene that was sampled. Brushing of the socks recovered about 50 sand grains with some silt: ultrasonic agitation and centrifuging recovered over 300 grains of sand, silt and clay. These were visually compared to scene and control samples, allowing exclusion of 52 samples and the retention of one comparison sample as well as other possibles, saving time and money, but maximising sample quantity and quality.
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Maximising trace soil evidence: an Improved Recovery Method developed during investigation of a $26 million bank robbery.
Forensic Science International, 2011Co-Authors: Alastair Ruffell, Anna SandifordAbstract:Abstract Obtaining as much particulate material as possible from questioned items is desirable in forensic science as this allows a range of analyses to be undertaken and the retention of material for others to check. A Method of maximising particulate Recovery is described using a kidnap case, where minimal staining on clothing (socks) remained as possible indications of where the victim had been held captive. Police intelligence led to a hostage scene that was sampled. Brushing of the socks recovered about 50 sand grains with some silt: ultrasonic agitation and centrifuging recovered over 300 grains of sand, silt and clay. These were visually compared to scene and control samples, allowing exclusion of 52 samples and the retention of one comparison sample as well as other possibles, saving time and money, but maximising sample quantity and quality.
Alastair Ruffell - One of the best experts on this subject based on the ideXlab platform.
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maximising trace soil evidence an Improved Recovery Method developed during investigation of a 26 million bank robbery
Forensic Science International, 2011Co-Authors: Alastair Ruffell, Anna SandifordAbstract:Abstract Obtaining as much particulate material as possible from questioned items is desirable in forensic science as this allows a range of analyses to be undertaken and the retention of material for others to check. A Method of maximising particulate Recovery is described using a kidnap case, where minimal staining on clothing (socks) remained as possible indications of where the victim had been held captive. Police intelligence led to a hostage scene that was sampled. Brushing of the socks recovered about 50 sand grains with some silt: ultrasonic agitation and centrifuging recovered over 300 grains of sand, silt and clay. These were visually compared to scene and control samples, allowing exclusion of 52 samples and the retention of one comparison sample as well as other possibles, saving time and money, but maximising sample quantity and quality.
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Maximising trace soil evidence: an Improved Recovery Method developed during investigation of a $26 million bank robbery.
Forensic Science International, 2011Co-Authors: Alastair Ruffell, Anna SandifordAbstract:Abstract Obtaining as much particulate material as possible from questioned items is desirable in forensic science as this allows a range of analyses to be undertaken and the retention of material for others to check. A Method of maximising particulate Recovery is described using a kidnap case, where minimal staining on clothing (socks) remained as possible indications of where the victim had been held captive. Police intelligence led to a hostage scene that was sampled. Brushing of the socks recovered about 50 sand grains with some silt: ultrasonic agitation and centrifuging recovered over 300 grains of sand, silt and clay. These were visually compared to scene and control samples, allowing exclusion of 52 samples and the retention of one comparison sample as well as other possibles, saving time and money, but maximising sample quantity and quality.
Yi Shen - One of the best experts on this subject based on the ideXlab platform.
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An Improved Recovery Method of rail crack signal based on least-square deconvolution algorithm with sectional regulatory factors
2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2018Co-Authors: Kangwei Wang, Xin Zhang, Yan Wang, Yi ShenAbstract:In order to carry out AE experiments in the field, a crack source should be made at the field site. However, it's dangerous to make an actual crack in the in-service rail, which makes generating a simulated crack signal of significant importance. In this paper, a signal Recovery Method based on Least-Square Deconvolution with sectional regulatory factors is proposed. The impulse response of the AE acquisition system is obtained by LSD to eliminate the noise interference. Then simulated crack source is deconvolved by an actual crack signal to be reproduced and modified with sectional regulatory factors to compensate the effect of attenuation. The results in the field experiment illustrate that the proposed Method has a general applicability in inversion problem of transient arbitrary AE signals, which can be utilized in generating AE source for inspection of AE acquisition devices in the in-service railway and studies of the properties of AE sources.
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I2MTC - An Improved Recovery Method of rail crack signal based on least-square deconvolution algorithm with sectional regulatory factors
2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2018Co-Authors: Kangwei Wang, Xin Zhang, Yan Wang, Yi ShenAbstract:In order to carry out AE experiments in the field, a crack source should be made at the field site. However, it's dangerous to make an actual crack in the in-service rail, which makes generating a simulated crack signal of significant importance. In this paper, a signal Recovery Method based on Least-Square Deconvolution with sectional regulatory factors is proposed. The impulse response of the AE acquisition system is obtained by LSD to eliminate the noise interference. Then simulated crack source is deconvolved by an actual crack signal to be reproduced and modified with sectional regulatory factors to compensate the effect of attenuation. The results in the field experiment illustrate that the proposed Method has a general applicability in inversion problem of transient arbitrary AE signals, which can be utilized in generating AE source for inspection of AE acquisition devices in the in-service railway and studies of the properties of AE sources.
Kangwei Wang - One of the best experts on this subject based on the ideXlab platform.
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An Improved Recovery Method of rail crack signal based on least-square deconvolution algorithm with sectional regulatory factors
2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2018Co-Authors: Kangwei Wang, Xin Zhang, Yan Wang, Yi ShenAbstract:In order to carry out AE experiments in the field, a crack source should be made at the field site. However, it's dangerous to make an actual crack in the in-service rail, which makes generating a simulated crack signal of significant importance. In this paper, a signal Recovery Method based on Least-Square Deconvolution with sectional regulatory factors is proposed. The impulse response of the AE acquisition system is obtained by LSD to eliminate the noise interference. Then simulated crack source is deconvolved by an actual crack signal to be reproduced and modified with sectional regulatory factors to compensate the effect of attenuation. The results in the field experiment illustrate that the proposed Method has a general applicability in inversion problem of transient arbitrary AE signals, which can be utilized in generating AE source for inspection of AE acquisition devices in the in-service railway and studies of the properties of AE sources.
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I2MTC - An Improved Recovery Method of rail crack signal based on least-square deconvolution algorithm with sectional regulatory factors
2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2018Co-Authors: Kangwei Wang, Xin Zhang, Yan Wang, Yi ShenAbstract:In order to carry out AE experiments in the field, a crack source should be made at the field site. However, it's dangerous to make an actual crack in the in-service rail, which makes generating a simulated crack signal of significant importance. In this paper, a signal Recovery Method based on Least-Square Deconvolution with sectional regulatory factors is proposed. The impulse response of the AE acquisition system is obtained by LSD to eliminate the noise interference. Then simulated crack source is deconvolved by an actual crack signal to be reproduced and modified with sectional regulatory factors to compensate the effect of attenuation. The results in the field experiment illustrate that the proposed Method has a general applicability in inversion problem of transient arbitrary AE signals, which can be utilized in generating AE source for inspection of AE acquisition devices in the in-service railway and studies of the properties of AE sources.
Xin Zhang - One of the best experts on this subject based on the ideXlab platform.
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An Improved Recovery Method of rail crack signal based on least-square deconvolution algorithm with sectional regulatory factors
2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2018Co-Authors: Kangwei Wang, Xin Zhang, Yan Wang, Yi ShenAbstract:In order to carry out AE experiments in the field, a crack source should be made at the field site. However, it's dangerous to make an actual crack in the in-service rail, which makes generating a simulated crack signal of significant importance. In this paper, a signal Recovery Method based on Least-Square Deconvolution with sectional regulatory factors is proposed. The impulse response of the AE acquisition system is obtained by LSD to eliminate the noise interference. Then simulated crack source is deconvolved by an actual crack signal to be reproduced and modified with sectional regulatory factors to compensate the effect of attenuation. The results in the field experiment illustrate that the proposed Method has a general applicability in inversion problem of transient arbitrary AE signals, which can be utilized in generating AE source for inspection of AE acquisition devices in the in-service railway and studies of the properties of AE sources.
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I2MTC - An Improved Recovery Method of rail crack signal based on least-square deconvolution algorithm with sectional regulatory factors
2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2018Co-Authors: Kangwei Wang, Xin Zhang, Yan Wang, Yi ShenAbstract:In order to carry out AE experiments in the field, a crack source should be made at the field site. However, it's dangerous to make an actual crack in the in-service rail, which makes generating a simulated crack signal of significant importance. In this paper, a signal Recovery Method based on Least-Square Deconvolution with sectional regulatory factors is proposed. The impulse response of the AE acquisition system is obtained by LSD to eliminate the noise interference. Then simulated crack source is deconvolved by an actual crack signal to be reproduced and modified with sectional regulatory factors to compensate the effect of attenuation. The results in the field experiment illustrate that the proposed Method has a general applicability in inversion problem of transient arbitrary AE signals, which can be utilized in generating AE source for inspection of AE acquisition devices in the in-service railway and studies of the properties of AE sources.
