G Jie - Academia.edu (original) (raw)
Papers by G Jie
2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, 2011
Pyrolysis process is advanced as a former-treatment for waste printed circuit broad (PCB). The re... more Pyrolysis process is advanced as a former-treatment for waste printed circuit broad (PCB). The results show that at above 500 pyrolysis was complete The mechanical properties of PCBs that are pyrolyzed. It is observed that at 600 ¡æ pyrolysis temperature the tensile strength and the punching strength of PCB is lower than those of original samples.
Chinese Journal of Industrial Medicine, 2004
Oncology Letters, 2020
The aim of the present study was to develop a novel nomogram that incorporated clinical factors, ... more The aim of the present study was to develop a novel nomogram that incorporated clinical factors, imaging parameters and biopsy pathological factors (including cribriform morphology) to predict adverse pathology in prostate cancer (PCa). A total of 223 patients with PCa, who had undergone preoperative multi-parametric magnetic resonance imaging and had a biopsy of Gleason pattern (GP) 4, absence of GP 5 and pure Grade Group (GG) 3 [Gleason score (GS) 3+4, GS 4+3, GS 4+4], were retrospectively enrolled onto the study. The contribution of GG to the biopsy and Prostate Imaging Reporting and Data System (PI-RADS) score for PCa harboring adverse pathology were analyzed. Univariate and multivariate logistic regression analyses were performed to determine significant pathology predictors of adverse pathology for nomogram development. The nomogram was internally validated using bootstrapping with 1,000 iterations. The diagnostic performance of the nomogram was analyzed by receiver operating characteristics (ROC) analysis and decision curve analysis (DCA). A higher biopsy GG and PI-RADS score were associated with an increased likelihood of adverse pathology. Prostate specific antigen density (PSAD), biopsy GG, cribriform morphology on biopsy and PI-RADS score were significant predictors and were included in the nomogram. The ROC area under the curve of the nomogram was 0.88 (95% confidence interval, 0.84-0.91), with a high specificity (0.91) and moderate sensitivity (0.72). The novel nomogram was shown to have a higher net benefit for the prediction of adverse pathology in PCa, compared with any individual factors determined by DCA. Overall, a novel nomogram incorporating PSAD, PI-RADS score, biopsy GG and cribriform morphology on biopsy was shown to perform well in the prediction of PCa harboring adverse pathology at the time of radical prostatectomy.
Materials Testing, 2020
This paper aims to improve the calculation efficiency and accuracy of concrete damage degree iden... more This paper aims to improve the calculation efficiency and accuracy of concrete damage degree identification, and then to analyze the damage mechanism of concrete damage. First, the correlation analysis and principal component analysis of 15 characteristic parameters of acoustic emission signals accompanying concrete uniaxial compression and splitting damage process are performed through which the dimension is reduced into 5 non-correlated principal components. Then, based on the analysis of the relationship between each principal component and the damage and cracking mechanism of concrete, the damage degree of concrete is identified as an input variable of the BP neural network. The results show that the 5 principal components effectively eliminate redundant information and carry information on the failure mechanism of concrete damage and the damage process. Principal component analysis and the neural network are used to achieve the accurate recognition of acoustic emission paramete...
Pediatric Critical Care Medicine, 2018
IOP Conference Series: Earth and Environmental Science, 2019
Bonding properties between 3D printing building materials layers are tested, including tensile st... more Bonding properties between 3D printing building materials layers are tested, including tensile strength test, shear strength and bending strength test of 3D printing building materials. The failure process and failure modes of 3D printing building materials are focused on analysis in this paper. Experimental results indicate that there are weak adhesive layers in the 3D printing building materials, specimen failure occurs in the weak adhesive layer. The tensile strength average value of 3D printing building materials is 0.74N/mm². The shear failure of 3D printing specimen is not occurred, but bending failure. The bending strength average value of 3D printing building materials is 0.88N/mm² .
Radiation Physics and Chemistry, 2017
Microencapsulated ammonium polyphosphate (MCAPP) in combination with polyester polyurethane (TPU)... more Microencapsulated ammonium polyphosphate (MCAPP) in combination with polyester polyurethane (TPU) was used to flame retardant ethylene-vinyl acetate copolymer (EVA). The EVA composites with different irradiation doses were immersed in hot water (80 C) to accelerate ageing process. The microencapsulation and irradiation dose ensured positive impacts on the properties of the EVA composites in terms of better dimensional stability and flame retardant performance. The microencapsulation of APP could lower its solubility in water and the higher irradiation dose led to the more MCAPP immobilized in three dimensional crosslinked structure of the EVA matrix which could jointly enhance the flame retardant and electrical insulation properties of the EVA composites. So, the EVA composites with 180 kGy irradiation dose exhibited better dimensional stability than the EVA composites with 120 kGy due to the higher crosslinking degree. Moreover, the higher irradiation dose lead to the more MCAPP immobilizated in crosslinked three-dimensional structure of EVA, enhancing the flame retardancy and electrical insulation properties of the EVA composites. After ageing test in hot water at 80 C for 2 weeks, the EVA/TPU/MCAPP composite with 180 kGy could still maintain the UL-94 V-0 rating and the limiting oxygen index (LOI) value was as high as 30%. This investigation indicated the flame retardant EVA cable containing MCAPP could achieve stable properties and lower electrical fire hazard risk during long-term hot water ageing test.
European review for medical and pharmacological sciences, 2016
To analyze the expression of leucine-rich and immunoglobulin-like domain gene1 (LRIG1) in pituita... more To analyze the expression of leucine-rich and immunoglobulin-like domain gene1 (LRIG1) in pituitary tumor and its clinical significance. Patients were divided into two groups: hypophysoma group (n = 80) and normal group (normal brain tissue, n = 30). The immune tissue chemical streptavidin avidin-peroxidase was applied to detect the expression of LRIG1 of both groups and to analyze its relationship with the patients' prognosis. The positive expression rate of LRIG1 in normal brain tissues was significantly higher than that in pituitary adenomas (100% vs. 53.8%) (p < 0.05). The positive expression rate of LRIG1 in pituitary tumors was not significantly related to age and gender, the difference was not statistically significant (p > 0.05). The positive expression rate of LRIGl in non-invasive pituitary adenomas was higher than that in invasive pituitary tumors (68.4% vs. 21.7%), the difference was statistically significant (p < 0.05). Cox multivariate survival analysis sh...
2010 International Conference on Audio, Language and Image Processing, 2010
Abstract As immersed virtual maintenance simulation system was built by integrating ShapeWarp Hum... more Abstract As immersed virtual maintenance simulation system was built by integrating ShapeWarp Human Motion Capture System and DELMIA, the motion information of man in actual world can be transferred to the manikin in the virtual environment of DELMIA. ...
2014 IEEE Geoscience and Remote Sensing Symposium, 2014
In this paper, we use ASCAT and MODIS data to analyze wind field, the temperature and the chlorop... more In this paper, we use ASCAT and MODIS data to analyze wind field, the temperature and the chlorophyll concentration distribution in Bohai Sea and Yellow Sea mixed zone and compare characteristics with the first 10 years (Except the wind field, it is only 6 years with ASCAT data). We found that high wind weather is too few in winter of 2013, the northerly winds are dominant, and the sea surface temperatures are also high and low chlorophyll concentration into the mixing zone of Yellow Sea and the Bohai Sea trend. There is 6℃ to 8℃ sea water into the Bohai Sea.
Structures and Infrastructures, 2008
Advanced Materials Research, 2011
Based on the uncertain problem during the design of the fatigue life of drive axle housing assemb... more Based on the uncertain problem during the design of the fatigue life of drive axle housing assemble, entity model of drive axle housing assemble of some commercial vehicle is built by UG. According to national standard of the Bench Test, with finite element method, the finite element model is built and the static strength analysis is made by the FEM-software ABAQUS 6.8. On the base of the result of stress-strain analysis and the model validation, with the fatigue software FEMFAT 4.7D, the research on the cumulative damage and endurance limit safety factors is studied in terms of the Miner modified fatigue theory in the drive axle housing assemble. The results show that the model and method is reasonable and effective. It is helpful to optimize the structure parameter in the drive axle design through the optimization algorithm in the automobile.
2011 5th International Conference on Bioinformatics and Biomedical Engineering, 2011
In this paper, based on the analysis of hydrology and sediment data, a BP artificial neural netwo... more In this paper, based on the analysis of hydrology and sediment data, a BP artificial neural network model which has been applied maturely and widely is established to study the relationship between the middle-section width of the Hengsha Passage and the three other factors - the runoff, the sediment discharge of the South Branch and the split ebb flow ratio
2011 5th International Conference on Bioinformatics and Biomedical Engineering, 2011
ABSTRACT A 3D numerical model is set up to simulate the tidal currents in the Changjiang estuary ... more ABSTRACT A 3D numerical model is set up to simulate the tidal currents in the Changjiang estuary by ECOMSED model in this paper. This model has been validated with the measured data, the computed results of water level, flow velocity magnitude and direction agree well with the measured data. Based on the sediment grain size of riverbed in the North Branch, Dou guoren's formula is applied to calculate the sediment incipient velocity in the North Branch, which is compared with the computed bottom velocity fields to analyze the riverbed erosion and sediment deposition in the North Branch. The comparisons suggest that the hydrodynamic condition in the North Branch should be improved for meeting the navigation requirements. The research results can provide the government decision-maker for technical supports.
Proceedings of 6th Electronics Packaging Technology Conference (EPTC 2004) (IEEE Cat. No.04EX971)
Abstract Reliability of IC packages during drop impact is critical for portable electronic produc... more Abstract Reliability of IC packages during drop impact is critical for portable electronic products. These packages are susceptible to solder joint failure when induced by mechanical shock and printed circuit board (PCB) bending during impact. Normally, portable products ...
Proceedings of 6th Electronics Packaging Technology Conference (EPTC 2004) (IEEE Cat. No.04EX971)
... Cards, ASME Joumal of Electronics Packaging, Vol.114, December, pp.378-383 4. EU Wong, KM Li... more ... Cards, ASME Joumal of Electronics Packaging, Vol.114, December, pp.378-383 4. EU Wong, KM Lim, Norman Lee, Simon Seah, Cindy Hoe, Jason Wang, Drop Impact Test - Mechanics &amp; Physics of Failure, 4th EPTC Conference, Singapore, 2002, pp.327-333 5. Gu Jie ...
2010 International Conference on Measuring Technology and Mechatronics Automation, 2010
Basing on the fatigue breaking of the differential case of the drive axle with the material of no... more Basing on the fatigue breaking of the differential case of the drive axle with the material of nodular graphite cast iron, the fatigue analysis is made. According to the criterion of 'Q/T 543-1999 Drive Axle Bench Test Standard', with the fatigue software FEMFAT 4.7D, the research on the cumulative damage and endurance limit safety factors in differential case is studied in terms of the Miner modified fatigue theory. The reason of the failure of the differential case can be sure that the stress concentration is at the region of the differential shaft hole in the differential case, and the safety factors are beyond the safe yield limit of the material QT450-10. Same is the comparison of the experimental results to simulation results on the failure sample, which is sure that the fatigue analysis method is reasonable and effective. It is helpful to optimize the structure parameter in the differential case design through the optimization algorithm for the drive axle in the automobile.
This article applied an ironic solution reaction to in situ deposit calcium carbonate particles o... more This article applied an ironic solution reaction to in situ deposit calcium carbonate particles onto bamboo fibers at 5°C, 15°C, 25°C, 45°C and 65°C respectively. The fibers were then vacuum filtered to handsheets and hot compressed into thermoplastic composites with alternatively laminated polypropolene films(1 : 3 by weight). Surface features of individual bamboo fibers and tensile properties of fibers and their composites were investigated. The results show that nanoparticles and submicron particles grew into the wrinkles and micropores of fibers, the size, morphology and adsorbance of which were distinctively varied at different temperatures. The highest calcium carbonate adsorbance (2.34% of fibers' weigt) was obtained at 25°C. The precipitating treatment is a useful method to densify and hydrophobize bamboo fibers and heal the cell wall defects. The mean values of contact angles increased and the variations within group were reduced as the loading percentage of particles rose, which might be due to reduced hydrophilic groups and lumen space for water after coatings of calcium carbonate particles. Besides, tensile properties of all the treated individual bamboo fibers were enhanced. Comparing to the average tensile strengh and modulus of elasticity of the untreated, those of the treated bamboo fibers with the biggest calcium carbonate loading were higher by 30.50% and 32.71% respectively. What's more, the treatments were approved to enhance the compatibility of bamboo fibers and polypropylene, comparing to tensile strengh and modulus of elasticity of the untreated composites, those of the treated bamboo fiber composites with the biggest calcium carbonate loading were higher by 14.6% and 19.6% respectively.
2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, 2011
Pyrolysis process is advanced as a former-treatment for waste printed circuit broad (PCB). The re... more Pyrolysis process is advanced as a former-treatment for waste printed circuit broad (PCB). The results show that at above 500 pyrolysis was complete The mechanical properties of PCBs that are pyrolyzed. It is observed that at 600 ¡æ pyrolysis temperature the tensile strength and the punching strength of PCB is lower than those of original samples.
Chinese Journal of Industrial Medicine, 2004
Oncology Letters, 2020
The aim of the present study was to develop a novel nomogram that incorporated clinical factors, ... more The aim of the present study was to develop a novel nomogram that incorporated clinical factors, imaging parameters and biopsy pathological factors (including cribriform morphology) to predict adverse pathology in prostate cancer (PCa). A total of 223 patients with PCa, who had undergone preoperative multi-parametric magnetic resonance imaging and had a biopsy of Gleason pattern (GP) 4, absence of GP 5 and pure Grade Group (GG) 3 [Gleason score (GS) 3+4, GS 4+3, GS 4+4], were retrospectively enrolled onto the study. The contribution of GG to the biopsy and Prostate Imaging Reporting and Data System (PI-RADS) score for PCa harboring adverse pathology were analyzed. Univariate and multivariate logistic regression analyses were performed to determine significant pathology predictors of adverse pathology for nomogram development. The nomogram was internally validated using bootstrapping with 1,000 iterations. The diagnostic performance of the nomogram was analyzed by receiver operating characteristics (ROC) analysis and decision curve analysis (DCA). A higher biopsy GG and PI-RADS score were associated with an increased likelihood of adverse pathology. Prostate specific antigen density (PSAD), biopsy GG, cribriform morphology on biopsy and PI-RADS score were significant predictors and were included in the nomogram. The ROC area under the curve of the nomogram was 0.88 (95% confidence interval, 0.84-0.91), with a high specificity (0.91) and moderate sensitivity (0.72). The novel nomogram was shown to have a higher net benefit for the prediction of adverse pathology in PCa, compared with any individual factors determined by DCA. Overall, a novel nomogram incorporating PSAD, PI-RADS score, biopsy GG and cribriform morphology on biopsy was shown to perform well in the prediction of PCa harboring adverse pathology at the time of radical prostatectomy.
Materials Testing, 2020
This paper aims to improve the calculation efficiency and accuracy of concrete damage degree iden... more This paper aims to improve the calculation efficiency and accuracy of concrete damage degree identification, and then to analyze the damage mechanism of concrete damage. First, the correlation analysis and principal component analysis of 15 characteristic parameters of acoustic emission signals accompanying concrete uniaxial compression and splitting damage process are performed through which the dimension is reduced into 5 non-correlated principal components. Then, based on the analysis of the relationship between each principal component and the damage and cracking mechanism of concrete, the damage degree of concrete is identified as an input variable of the BP neural network. The results show that the 5 principal components effectively eliminate redundant information and carry information on the failure mechanism of concrete damage and the damage process. Principal component analysis and the neural network are used to achieve the accurate recognition of acoustic emission paramete...
Pediatric Critical Care Medicine, 2018
IOP Conference Series: Earth and Environmental Science, 2019
Bonding properties between 3D printing building materials layers are tested, including tensile st... more Bonding properties between 3D printing building materials layers are tested, including tensile strength test, shear strength and bending strength test of 3D printing building materials. The failure process and failure modes of 3D printing building materials are focused on analysis in this paper. Experimental results indicate that there are weak adhesive layers in the 3D printing building materials, specimen failure occurs in the weak adhesive layer. The tensile strength average value of 3D printing building materials is 0.74N/mm². The shear failure of 3D printing specimen is not occurred, but bending failure. The bending strength average value of 3D printing building materials is 0.88N/mm² .
Radiation Physics and Chemistry, 2017
Microencapsulated ammonium polyphosphate (MCAPP) in combination with polyester polyurethane (TPU)... more Microencapsulated ammonium polyphosphate (MCAPP) in combination with polyester polyurethane (TPU) was used to flame retardant ethylene-vinyl acetate copolymer (EVA). The EVA composites with different irradiation doses were immersed in hot water (80 C) to accelerate ageing process. The microencapsulation and irradiation dose ensured positive impacts on the properties of the EVA composites in terms of better dimensional stability and flame retardant performance. The microencapsulation of APP could lower its solubility in water and the higher irradiation dose led to the more MCAPP immobilized in three dimensional crosslinked structure of the EVA matrix which could jointly enhance the flame retardant and electrical insulation properties of the EVA composites. So, the EVA composites with 180 kGy irradiation dose exhibited better dimensional stability than the EVA composites with 120 kGy due to the higher crosslinking degree. Moreover, the higher irradiation dose lead to the more MCAPP immobilizated in crosslinked three-dimensional structure of EVA, enhancing the flame retardancy and electrical insulation properties of the EVA composites. After ageing test in hot water at 80 C for 2 weeks, the EVA/TPU/MCAPP composite with 180 kGy could still maintain the UL-94 V-0 rating and the limiting oxygen index (LOI) value was as high as 30%. This investigation indicated the flame retardant EVA cable containing MCAPP could achieve stable properties and lower electrical fire hazard risk during long-term hot water ageing test.
European review for medical and pharmacological sciences, 2016
To analyze the expression of leucine-rich and immunoglobulin-like domain gene1 (LRIG1) in pituita... more To analyze the expression of leucine-rich and immunoglobulin-like domain gene1 (LRIG1) in pituitary tumor and its clinical significance. Patients were divided into two groups: hypophysoma group (n = 80) and normal group (normal brain tissue, n = 30). The immune tissue chemical streptavidin avidin-peroxidase was applied to detect the expression of LRIG1 of both groups and to analyze its relationship with the patients' prognosis. The positive expression rate of LRIG1 in normal brain tissues was significantly higher than that in pituitary adenomas (100% vs. 53.8%) (p < 0.05). The positive expression rate of LRIG1 in pituitary tumors was not significantly related to age and gender, the difference was not statistically significant (p > 0.05). The positive expression rate of LRIGl in non-invasive pituitary adenomas was higher than that in invasive pituitary tumors (68.4% vs. 21.7%), the difference was statistically significant (p < 0.05). Cox multivariate survival analysis sh...
2010 International Conference on Audio, Language and Image Processing, 2010
Abstract As immersed virtual maintenance simulation system was built by integrating ShapeWarp Hum... more Abstract As immersed virtual maintenance simulation system was built by integrating ShapeWarp Human Motion Capture System and DELMIA, the motion information of man in actual world can be transferred to the manikin in the virtual environment of DELMIA. ...
2014 IEEE Geoscience and Remote Sensing Symposium, 2014
In this paper, we use ASCAT and MODIS data to analyze wind field, the temperature and the chlorop... more In this paper, we use ASCAT and MODIS data to analyze wind field, the temperature and the chlorophyll concentration distribution in Bohai Sea and Yellow Sea mixed zone and compare characteristics with the first 10 years (Except the wind field, it is only 6 years with ASCAT data). We found that high wind weather is too few in winter of 2013, the northerly winds are dominant, and the sea surface temperatures are also high and low chlorophyll concentration into the mixing zone of Yellow Sea and the Bohai Sea trend. There is 6℃ to 8℃ sea water into the Bohai Sea.
Structures and Infrastructures, 2008
Advanced Materials Research, 2011
Based on the uncertain problem during the design of the fatigue life of drive axle housing assemb... more Based on the uncertain problem during the design of the fatigue life of drive axle housing assemble, entity model of drive axle housing assemble of some commercial vehicle is built by UG. According to national standard of the Bench Test, with finite element method, the finite element model is built and the static strength analysis is made by the FEM-software ABAQUS 6.8. On the base of the result of stress-strain analysis and the model validation, with the fatigue software FEMFAT 4.7D, the research on the cumulative damage and endurance limit safety factors is studied in terms of the Miner modified fatigue theory in the drive axle housing assemble. The results show that the model and method is reasonable and effective. It is helpful to optimize the structure parameter in the drive axle design through the optimization algorithm in the automobile.
2011 5th International Conference on Bioinformatics and Biomedical Engineering, 2011
In this paper, based on the analysis of hydrology and sediment data, a BP artificial neural netwo... more In this paper, based on the analysis of hydrology and sediment data, a BP artificial neural network model which has been applied maturely and widely is established to study the relationship between the middle-section width of the Hengsha Passage and the three other factors - the runoff, the sediment discharge of the South Branch and the split ebb flow ratio
2011 5th International Conference on Bioinformatics and Biomedical Engineering, 2011
ABSTRACT A 3D numerical model is set up to simulate the tidal currents in the Changjiang estuary ... more ABSTRACT A 3D numerical model is set up to simulate the tidal currents in the Changjiang estuary by ECOMSED model in this paper. This model has been validated with the measured data, the computed results of water level, flow velocity magnitude and direction agree well with the measured data. Based on the sediment grain size of riverbed in the North Branch, Dou guoren's formula is applied to calculate the sediment incipient velocity in the North Branch, which is compared with the computed bottom velocity fields to analyze the riverbed erosion and sediment deposition in the North Branch. The comparisons suggest that the hydrodynamic condition in the North Branch should be improved for meeting the navigation requirements. The research results can provide the government decision-maker for technical supports.
Proceedings of 6th Electronics Packaging Technology Conference (EPTC 2004) (IEEE Cat. No.04EX971)
Abstract Reliability of IC packages during drop impact is critical for portable electronic produc... more Abstract Reliability of IC packages during drop impact is critical for portable electronic products. These packages are susceptible to solder joint failure when induced by mechanical shock and printed circuit board (PCB) bending during impact. Normally, portable products ...
Proceedings of 6th Electronics Packaging Technology Conference (EPTC 2004) (IEEE Cat. No.04EX971)
... Cards, ASME Joumal of Electronics Packaging, Vol.114, December, pp.378-383 4. EU Wong, KM Li... more ... Cards, ASME Joumal of Electronics Packaging, Vol.114, December, pp.378-383 4. EU Wong, KM Lim, Norman Lee, Simon Seah, Cindy Hoe, Jason Wang, Drop Impact Test - Mechanics &amp; Physics of Failure, 4th EPTC Conference, Singapore, 2002, pp.327-333 5. Gu Jie ...
2010 International Conference on Measuring Technology and Mechatronics Automation, 2010
Basing on the fatigue breaking of the differential case of the drive axle with the material of no... more Basing on the fatigue breaking of the differential case of the drive axle with the material of nodular graphite cast iron, the fatigue analysis is made. According to the criterion of 'Q/T 543-1999 Drive Axle Bench Test Standard', with the fatigue software FEMFAT 4.7D, the research on the cumulative damage and endurance limit safety factors in differential case is studied in terms of the Miner modified fatigue theory. The reason of the failure of the differential case can be sure that the stress concentration is at the region of the differential shaft hole in the differential case, and the safety factors are beyond the safe yield limit of the material QT450-10. Same is the comparison of the experimental results to simulation results on the failure sample, which is sure that the fatigue analysis method is reasonable and effective. It is helpful to optimize the structure parameter in the differential case design through the optimization algorithm for the drive axle in the automobile.
This article applied an ironic solution reaction to in situ deposit calcium carbonate particles o... more This article applied an ironic solution reaction to in situ deposit calcium carbonate particles onto bamboo fibers at 5°C, 15°C, 25°C, 45°C and 65°C respectively. The fibers were then vacuum filtered to handsheets and hot compressed into thermoplastic composites with alternatively laminated polypropolene films(1 : 3 by weight). Surface features of individual bamboo fibers and tensile properties of fibers and their composites were investigated. The results show that nanoparticles and submicron particles grew into the wrinkles and micropores of fibers, the size, morphology and adsorbance of which were distinctively varied at different temperatures. The highest calcium carbonate adsorbance (2.34% of fibers' weigt) was obtained at 25°C. The precipitating treatment is a useful method to densify and hydrophobize bamboo fibers and heal the cell wall defects. The mean values of contact angles increased and the variations within group were reduced as the loading percentage of particles rose, which might be due to reduced hydrophilic groups and lumen space for water after coatings of calcium carbonate particles. Besides, tensile properties of all the treated individual bamboo fibers were enhanced. Comparing to the average tensile strengh and modulus of elasticity of the untreated, those of the treated bamboo fibers with the biggest calcium carbonate loading were higher by 30.50% and 32.71% respectively. What's more, the treatments were approved to enhance the compatibility of bamboo fibers and polypropylene, comparing to tensile strengh and modulus of elasticity of the untreated composites, those of the treated bamboo fiber composites with the biggest calcium carbonate loading were higher by 14.6% and 19.6% respectively.