scholarly journals Freezing Resistance Evaluation of Rose Stems During Frost Dehardening Using Electrical Impedance Tomography

2021 ◽  
Author(s):  
Ji Qian ◽  
Juan Zhou ◽  
Juan Rui Gong ◽  
Yang Liu ◽  
Gang Zhang
Keyword(s):  
Electrical Impedance ◽  
Freezing Resistance ◽  
Impedance Tomography ◽  
Abiotic And Biotic Stresses ◽  
Biotic Stresses ◽  
Lethal Temperatures ◽  
Impedance Variation ◽  
Destructive Measurement ◽  
Non Destructive ◽  
Best Fit

Abstract BackgroundElectrical impedance tomography (EIT) has rarely been applied in plant science, particularly to study plant resistance to abiotic and biotic stresses. In this study, we evaluated the freezing resistance of floribunda roses (Rosa Floribunda) during frost dehardening using the EIT technique to identify a new method for rapid and non-destructive measurement of plant freezing resistance.ResultsThe current was the excitation source, the boundary voltage value was measured, and then the boundary voltage reconstructed value was formed. Using an imaging algorithm, the two-dimensional (2D) distribution of impedance or impedance variation was reconstructed. The EIT reconstructed values decreased obviously with the decline in freezing temperatures. The EIT reconstructed values of stems had the best fit to the logistic equation, and subsequently, the semi-lethal temperatures were calculated. The freezing resistance results evaluated using EIT reconstructed values were linearly correlated with the results of the traditional electrolyte leakage (EL) method (r=0.93, P<0.01).ConclusionsIn conclusion, after freezing tests, the reconstructed values of EIT images could be used to quantitatively evaluate the freezing resistance of floribunda rose stems. The present study provides a reference for the further application of the EIT technique for non-destructive and rapid detection of plant freezing resistance.

scholarly journals Freezing resistance evaluation of rose stems during frost dehardening using electrical impedance tomography

2020 ◽  
Author(s):  
Ji Qian ◽  
Juan Zhou ◽  
Juan Rui Gong ◽  
Yang Liu ◽  
Gang Zhang
Keyword(s):  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Freezing Resistance ◽  
Impedance Tomography ◽  
Abiotic And Biotic Stresses ◽  
Biotic Stresses ◽  
Impedance Variation ◽  
Destructive Measurement ◽  
Non Destructive ◽  
Best Fit

Abstract Background Electrical impedance tomography (EIT) has rarely been applied in plant science, particularly to study plant resistance to abiotic and biotic stresses. In this study, we evaluated the freezing resistance of floribunda roses (Rosa Floribunda) during frost dehardening using the EIT technique to identify a new method for rapid and non-destructive measurement of plant freezing resistance. Results The current was the excitation source, the boundary voltage value was measured, and then the boundary voltage reconstructed value was formed. Using an imaging algorithm, the two-dimensional (2D) distribution of impedance or impedance variation is reconstructed. The EIT reconstructed values decreased obviously with the decline in freezing temperatures. The EIT reconstructed values of stems had the best fit to the logistic equation, and subsequently, the semi-lethal temperatures were calculated. The freezing resistance results evaluated using EIT reconstructed values were linearly correlated with the results of the traditional electrolyte leakage (EL) method (r = 0.93, P<0.01). Conclusions In conclusion, after freezing tests, the reconstructed values of EIT images could be used to quantitatively evaluate the freezing resistance of floribunda rose stems. The present study provides a reference for the further application of the EIT technique for non-destructive and rapid detection of plant freezing resistance.

scholarly journals Freezing resistance evaluation of rose stems during frost dehardening using electrical impedance tomography

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ji Qian ◽  
Juan Zhou ◽  
Ruijuan Gong ◽  
Yang Liu ◽  
Gang Zhang
Keyword(s):  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Freezing Resistance ◽  
Impedance Tomography ◽  
Abiotic And Biotic Stresses ◽  
Biotic Stresses ◽  
Impedance Variation ◽  
Destructive Measurement ◽  
Non Destructive ◽  
Best Fit

AbstractBackgroundElectrical impedance tomography (EIT) has rarely been applied in plant science, particularly to study plant resistance to abiotic and biotic stresses. In this study, we evaluated the freezing resistance of floribunda roses (RosaFloribunda) during frost dehardening using the EIT technique to identify a new method for rapid and non-destructive measurement of plant freezing resistance.ResultsThe current was the excitation source, the boundary voltage value was measured, and then the boundary voltage reconstructed value was formed. Using an imaging algorithm, the two-dimensional (2D) distribution of impedance or impedance variation was reconstructed. The EIT reconstructed values decreased obviously with the decline in freezing temperatures. The EIT reconstructed values of stems had the best fit to the logistic equation, and subsequently, the semi-lethal temperatures were calculated. The freezing resistance results evaluated using EIT reconstructed values were linearly correlated with the results of the traditional electrolyte leakage (EL) method (r = 0.93,P < 0.01).ConclusionsIn conclusion, after freezing tests, the reconstructed values of EIT images could be used to quantitatively evaluate the freezing resistance of floribunda rose stems. The present study provides a reference for the further application of the EIT technique for non-destructive and rapid detection of plant freezing resistance.

A Review of Process Tomography Application in Inspection System

2014 ◽  
Vol 70 (3) ◽  
Author(s):  
Yasmin Abdul Wahab ◽  
Ruzairi Abdul Rahim ◽  
Mohd Hafiz Fazlul Rahiman ◽  
Herlina Abdul Rahim ◽  
Suzanna Ridzuan Aw ◽  
...  
Keyword(s):  
Electrical Impedance ◽  
Optical Tomography ◽  
Good Condition ◽  
Future Research ◽  
Inspection System ◽  
Ultrasonic Tomography ◽  
Impedance Tomography ◽  
X Ray ◽  
Process Tomography ◽  
Non Destructive

The inspection system is crucial to ensure the system is always in a good condition. A technique that can be used for inspection system is process tomography. By promising non-destructive approach; various types of process tomography applied in civil, manufacturing and electrical applications. The purpose of this paper is to review the types of process tomography such as ultrasonic tomography, x-ray tomography, optical tomography, electrical resistance tomography, and electrical impedance tomography that had been applied to the inspection system. Variety techniques of inspection based on those sensors briefly discussed in this paper. The result showed that the process tomography expanded tremendously in the inspection system. Finally, a potential future research on the inspection system in the civil application proposed in this paper.

scholarly journals ‘Phantom Virtual’ Penampang Melintang Tungkai (Tibia Fibula) Berbasis Konsep Rangkaian Resistor

2017 ◽  
Author(s):  
Agah D. Garnadi ◽  
Amanatulhay Pribadi ◽  
mn indro ◽  
Mochamad Tito Julianto
Keyword(s):  
Boundary Data ◽  
Electrical Impedance ◽  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Impedance Tomography ◽  
Data Set ◽  
Phantom Model ◽  
Reconstruction Software ◽  
Tomography Reconstruction ◽  
Non Destructive

Tomografi elektrik berguna untuk mencitrakan distribusi impedansi pada suatu benda. Salah satu aplikasi Elektrikal Tomografi adalah di bidang biomedika. Tungkai sebagai organ tubuh memiliki resistansi yang beragam bergantung pada material jaringan yang menyusunnya. Potongan tungkai (Tibia Fibula) dapat disederhanakan menjadi suatu phantom model yang terdiri dari tiga objek dengan resistansi berbeda, yaitu merepresentasikan tulang, otot, dan pembuluh darah. Dengan menggunakan boundary data simulator (BDS) berbasis rangkaian listrik dengan menggunakan pola arus tetanggan, dibangkitkan data set untuk phantom yang merepresentasikan jaringan melintang tungkai. Data set yang dibangkitkan merupakan input inversi untuk memperoleh citra Non Destructive Imaging dengan menggunakan software rekonstruksi semisal EIDORS (electrical impedance tomography and diffuse optical tomography reconstruction software), sebagai kalibrasi rekonstruksi.

scholarly journals ‘Phantom Virtual’ Penampang Melintang Buah Manggis (Garcinia mangostana L.) Berbasis Konsep Rangkaian Resistor pada Tomografi Elektrik untuk Non Destructive Imaging Buah Tropik

2017 ◽  
Author(s):  
Agah D. Garnadi ◽  
Amanatulhay Pribadi ◽  
mn indro ◽  
Mochamad Tito Julianto
Keyword(s):  
Electrical Impedance Tomography ◽  
Boundary Data ◽  
Electrical Impedance ◽  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Garcinia Mangostana ◽  
Impedance Tomography ◽  
Data Set ◽  
Non Destructive

Tomografi elektrik berguna untuk mencitrakan distribusi impedansi pada suatu benda. Tomografi dapat diaplikasikan ke berbagai bidang, salah satunya untuk bidang pasca panen maupun kwalitas penjaminan mutu sebagai peranti pencitraan bagian dalam buah secara utuh tanpa merusak. Buah manggis sebagai salah satu jenis buah tropis yang eksotis memiliki resistansi yang beragam bergantung pada material jaringan yang menyusunnya. Penampang buah manggis dimodelkan dalam bentuk phantom resistor model yang merepresentasikan tiga objek dengan resistansi berbeda, yaitu kulit luar, daging buah, dan biji. Dengan menggunakan boundary data simulator (BDS) berbasis rangkaian listrik dengan menggunakan pola arus tetanggan, dibangkitkan data set untuk phantom yang merepresentasikan jaringan melintang buah manggis. Data set yang dibangkitkan akan menjadi input inversi untuk memperoleh citra Non Destructive Imaging dengan menggunakan software rekonstruksi semisal EIDORS (electrical impedance tomography and diffuse optical tomography recosntrustion software), sebagai kalibrasi rekonstruksi.

scholarly journals Monitoring postoperative lung recovery using electrical impedance tomography in post anesthesia care unit: an observational study

2021 ◽  
Author(s):  
Nadine Hochhausen ◽  
Torsten Kapell ◽  
Martin Dürbaum ◽  
Andreas Follmann ◽  
Rolf Rossaint ◽  
...  
Keyword(s):  
Observational Study ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Normal Weight ◽  
Anesthesia Care ◽  
Post Anesthesia Care Unit ◽  
Impedance Tomography ◽  
Impedance Variation ◽  
Pacu Stay ◽  
Spontaneously Breathing

AbstractWith electrical impedance tomography (EIT) recruitment and de-recruitment phenomena can be quantified and monitored at bedside. The aim was to examine the feasibility of EIT with respect to monitor atelectasis formation and resolution in the post anesthesia care unit (PACU). In this observational study, 107 postoperative patients were investigated regarding the presence and recovery of atelectasis described by the EIT-derived parameters Global Inhomogeneity Index (GI Index), tidal impedance variation (TIV), and the changes in end-expiratory lung impedance (ΔEELI). We examined whether the presence of obesity (ADP group) has an influence on pulmonary recovery compared to normal weight patients (NWP group). During the stay at PACU, measurements were taken every 15 min. GI Index, TIV, and ΔEELI were calculated for each time point. 107 patients were monitored and EIT-data of 16 patients were excluded for various reasons. EIT-data of 91 patients were analyzed off-line. Their length of stay averaged 80 min (25th and 75th quartile 52–112). The ADP group demonstrated a significantly higher GI Index at PACU arrival (p < 0.001). This finding disappeared during their stay at the PACU. Additionally, the ADP group showed a significant increase in ΔEELI between PACU arrival and discharge (p = 0.025). Furthermore, TIV showed a significantly lower value during the first 90 min of PACU stay as compared to the time period thereafter (p = 0.036). Our findings demonstrate that obesity has an influence on intraoperative atelectasis formation and de-recruitment during PACU stay. The application of EIT in spontaneously breathing PACU patients seems meaningful in monitoring pulmonary recovery.

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