Decision Support Tool(DST)enables farmers to make site-specific crop management decisions;however,comprehensive calibration can be both costly and time-consuming.This study assessed the production and economic benefit...Decision Support Tool(DST)enables farmers to make site-specific crop management decisions;however,comprehensive calibration can be both costly and time-consuming.This study assessed the production and economic benefits of two calibrations of the Nutrient Expert(NE)tool for rice in Sri Lanka’s Alfisols:the basic calibration(Nutrient Expert Sri Lanka 1,NESL1)and the comprehensive calibration(Nutrient Expert Sri Lanka 2,NESL2).NESL1 was developed by adapting the South Indian version of NE to local conditions,while NESL2 was an updated version,using three years of data from 71 farmer fields.展开更多
By applying the theory of structural reliability, reliability analyses for the stability of a breast wall on the top of a sloping breakwater are carried out. Based on the analyses, the method for determining partial a...By applying the theory of structural reliability, reliability analyses for the stability of a breast wall on the top of a sloping breakwater are carried out. Based on the analyses, the method for determining partial action / load factors and partial resistance factors of breast walls is expounded, and the design expressions with partial factors are given. The values of partial action / load factors and partial resistance factors are recommended preliminarily according to the computation for breast walls with typical cross-sections.展开更多
Considering the uncertainty of material performance, geometric characteristic and analysis method, the analysis of statistical parameters of the resistance of cast ball-and-socket support joints and the reliability an...Considering the uncertainty of material performance, geometric characteristic and analysis method, the analysis of statistical parameters of the resistance of cast ball-and-socket support joints and the reliability analysis are carried out by JC method （improved first-order second-moment method） based on the relevant experimental data. Results show that the resistance partial factor of the joint increases with the increase of the reliability index. The resis- tance partial factors are suggested corresponding to the reliability index under different load combinations. Moreover, the suggested resistance partial factor is adopted in reliability design, and it is found that the reliability index of the joint is larger than the target reliability index. The optimal load combination is the one in which live load plays an im- portant control role. Finally, based on the suggested resistance partial factors, the reliability analysis of cast bail-and- socket support ioints of a proiect is conducted.展开更多
High costs are connected with upgrading railway embankments throughout Denmark using the partial factors for geotechnical design calibrated for general application. One way to reduce the costs is reliability-based cal...High costs are connected with upgrading railway embankments throughout Denmark using the partial factors for geotechnical design calibrated for general application. One way to reduce the costs is reliability-based calibration of the partial factors to a reasonable safety level taking into account the specific design situations and uncertainties relevant to railway embankments. A reliability-based design has been investigated, resulting in an optimal partial factor for the considered subsoil. With a stochastic soil model to simulate the undrained shear strength of soft soil deposits, the partial factor is calibrated using asymptotic sampling for the reliability assessment. The calibration shows that the partial factor can be reduced significantly compared to the value specified in the Danish National Annex to DS/EN 1997-1 （2007）, Eurocode 7.展开更多
AIM:To evaluate the effect of the application of plasma rich in growth factors(PRGF)-Endoret to the remaining intact bundle in partial anterior cruciate ligament(ACL)tears.METHODS:A retrospective review of the rate of...AIM:To evaluate the effect of the application of plasma rich in growth factors(PRGF)-Endoret to the remaining intact bundle in partial anterior cruciate ligament(ACL)tears.METHODS:A retrospective review of the rate of return to play in football players treated with the application of PRGF-Endoret in the remaining intact bundle in partial ACL injuries that underwent surgery for knee instability.Patients with knee instability requiring revision surgery for remnant ACL were selected.PRGF was applied in the wider part of posterolateral bundle and the time it took patients to return to their full sporting activities at the same level before the injury was evaluated.RESULTS:A total of 19 patients were reviewed.Three had a Tegner activity level of 10 and the remaining 16level 9.The time between the injury and the time of surgery was 5.78 wk(SD 1.57).In total,81.75%(16/19)returned to the same pre-injury level of sport activity(Tegner 9-10).17 males and 2 females were treated.The rate of associated injury was 68.42%meniscal lesions and 26.31%cartilage lesions.The KT-1000 values were normalized in all operated cases.One patient was not able to return to sport due to the extent of their cartilage lesions.The 15 patients with Tegner activity level 9 returned to play at an average of 16.20 wk(SD1.44)while the 3 patients with Tegner activity level 10did so in 12.33 wk(SD 1.11).CONCLUSION:With one remaining intact bundle the application of PRGF-Endoret in instability cases due to partial ACL tear showed high return to sport rates at pre-injury level in professional football players.展开更多
The leukemia-associated autoinhibitor (LAI-615) derived from murine leukemia L7811 has been investigated intensively in our laboratory. In the following experiments, the partial purification of LA I-615 has been carri...The leukemia-associated autoinhibitor (LAI-615) derived from murine leukemia L7811 has been investigated intensively in our laboratory. In the following experiments, the partial purification of LA I-615 has been carried out in addition to the observation of phenotype variations of L7811 leuke-mic cells. The factor was purified over 1306-fold by sequential fractionation with Sephadex G-150 gel filtration, DEAE-cellulose ion exchange chromato-graphy, and Mono Q-fast protein liquid chromato-graphy. The molecular weight of LAI-615 was 68,000 as estimated by gel filtration. LAI-615 was a protein but not glycosylated, and it was suggested LAI-615 be secreted in an autocrine manner. Im-munocytochemical staining showed that the expression of Lyt2 phenotype of L7811 leukemic cells was often coincident with the secretion of LAI-615. Moreover, the physicochemical characteristics of LAI-615 was similar to that of T suppressor factor. Thus it is concluded that LAI-615 may be one of TsF-like factors.展开更多
Objective To study the risk factors of renal artery pseudoaneurysm ( RAP) following partial nephrectomy. Methods Open partial nephrectomhy was performed on a total of 464 cases of renal cell cancer from July 2003 to M...Objective To study the risk factors of renal artery pseudoaneurysm ( RAP) following partial nephrectomy. Methods Open partial nephrectomhy was performed on a total of 464 cases of renal cell cancer from July 2003 to May 2010. Five patients ( 1. 1% ) had postoperative hem-展开更多
生物量(biomass)是微生物高密度发酵过程中必须监控的关键指标之一,常用细胞光密度(optical density,OD)来测定。相较于传统的取样离线检测,实时在位监测技术具有无损、反馈快速和污染减少等优点,能够有效调控和优化发酵过程。为实现发...生物量(biomass)是微生物高密度发酵过程中必须监控的关键指标之一,常用细胞光密度(optical density,OD)来测定。相较于传统的取样离线检测,实时在位监测技术具有无损、反馈快速和污染减少等优点,能够有效调控和优化发酵过程。为实现发酵过程中关键指标的实时反馈,本研究构建了一个基于漫反射近红外光谱仪的在位监测平台,用于虾青素的高密度发酵过程中生物量的监测。通过实施光谱异常值剔除、比较不同的光谱预处理方法以及间隔偏最小二乘法(interval partial least squares,i-PLS)光谱波段分析,结果表明在1417-1650 nm波长范围内存在虾青素发酵生物量的特征波段。在此波段基础上建立的生物量动态预测模型交互验证决定系数(determination coefficient of cross validation,Rcv2)和交叉验证均方根误差(root mean square error of cross validation,RMSECV)分别为0.973和9.32。经过3批次发酵的外部验证表明采用i-PLS方法建立的生物量模型在细胞光密度(OD600)2.46-180.50范围内进行监测,OD平均绝对误差(mean absolute error,MAE)为6.28,展现出较高的预测准确性和稳定性。这表明该模型在虾青素高密度发酵过程生物量监测中具有应用前景。展开更多
基金supported by the National Research Council of Sri Lanka(Grant No.NRC TO 16-07).
文摘Decision Support Tool(DST)enables farmers to make site-specific crop management decisions;however,comprehensive calibration can be both costly and time-consuming.This study assessed the production and economic benefits of two calibrations of the Nutrient Expert(NE)tool for rice in Sri Lanka’s Alfisols:the basic calibration(Nutrient Expert Sri Lanka 1,NESL1)and the comprehensive calibration(Nutrient Expert Sri Lanka 2,NESL2).NESL1 was developed by adapting the South Indian version of NE to local conditions,while NESL2 was an updated version,using three years of data from 71 farmer fields.
文摘By applying the theory of structural reliability, reliability analyses for the stability of a breast wall on the top of a sloping breakwater are carried out. Based on the analyses, the method for determining partial action / load factors and partial resistance factors of breast walls is expounded, and the design expressions with partial factors are given. The values of partial action / load factors and partial resistance factors are recommended preliminarily according to the computation for breast walls with typical cross-sections.
基金Supported by National Natural Science Foundation of China (No.51078259)Seed Foundation of Tianjin University (No.2010XG-0013)Program for New Century Excellent Talents in University (No.1102010)
文摘Considering the uncertainty of material performance, geometric characteristic and analysis method, the analysis of statistical parameters of the resistance of cast ball-and-socket support joints and the reliability analysis are carried out by JC method （improved first-order second-moment method） based on the relevant experimental data. Results show that the resistance partial factor of the joint increases with the increase of the reliability index. The resis- tance partial factors are suggested corresponding to the reliability index under different load combinations. Moreover, the suggested resistance partial factor is adopted in reliability design, and it is found that the reliability index of the joint is larger than the target reliability index. The optimal load combination is the one in which live load plays an im- portant control role. Finally, based on the suggested resistance partial factors, the reliability analysis of cast bail-and- socket support ioints of a proiect is conducted.
基金The funding initiating this work was provided by Banedanmark
文摘High costs are connected with upgrading railway embankments throughout Denmark using the partial factors for geotechnical design calibrated for general application. One way to reduce the costs is reliability-based calibration of the partial factors to a reasonable safety level taking into account the specific design situations and uncertainties relevant to railway embankments. A reliability-based design has been investigated, resulting in an optimal partial factor for the considered subsoil. With a stochastic soil model to simulate the undrained shear strength of soft soil deposits, the partial factor is calibrated using asymptotic sampling for the reliability assessment. The calibration shows that the partial factor can be reduced significantly compared to the value specified in the Danish National Annex to DS/EN 1997-1 （2007）, Eurocode 7.
文摘AIM:To evaluate the effect of the application of plasma rich in growth factors(PRGF)-Endoret to the remaining intact bundle in partial anterior cruciate ligament(ACL)tears.METHODS:A retrospective review of the rate of return to play in football players treated with the application of PRGF-Endoret in the remaining intact bundle in partial ACL injuries that underwent surgery for knee instability.Patients with knee instability requiring revision surgery for remnant ACL were selected.PRGF was applied in the wider part of posterolateral bundle and the time it took patients to return to their full sporting activities at the same level before the injury was evaluated.RESULTS:A total of 19 patients were reviewed.Three had a Tegner activity level of 10 and the remaining 16level 9.The time between the injury and the time of surgery was 5.78 wk(SD 1.57).In total,81.75%(16/19)returned to the same pre-injury level of sport activity(Tegner 9-10).17 males and 2 females were treated.The rate of associated injury was 68.42%meniscal lesions and 26.31%cartilage lesions.The KT-1000 values were normalized in all operated cases.One patient was not able to return to sport due to the extent of their cartilage lesions.The 15 patients with Tegner activity level 9 returned to play at an average of 16.20 wk(SD1.44)while the 3 patients with Tegner activity level 10did so in 12.33 wk(SD 1.11).CONCLUSION:With one remaining intact bundle the application of PRGF-Endoret in instability cases due to partial ACL tear showed high return to sport rates at pre-injury level in professional football players.
文摘The leukemia-associated autoinhibitor (LAI-615) derived from murine leukemia L7811 has been investigated intensively in our laboratory. In the following experiments, the partial purification of LA I-615 has been carried out in addition to the observation of phenotype variations of L7811 leuke-mic cells. The factor was purified over 1306-fold by sequential fractionation with Sephadex G-150 gel filtration, DEAE-cellulose ion exchange chromato-graphy, and Mono Q-fast protein liquid chromato-graphy. The molecular weight of LAI-615 was 68,000 as estimated by gel filtration. LAI-615 was a protein but not glycosylated, and it was suggested LAI-615 be secreted in an autocrine manner. Im-munocytochemical staining showed that the expression of Lyt2 phenotype of L7811 leukemic cells was often coincident with the secretion of LAI-615. Moreover, the physicochemical characteristics of LAI-615 was similar to that of T suppressor factor. Thus it is concluded that LAI-615 may be one of TsF-like factors.
文摘Objective To study the risk factors of renal artery pseudoaneurysm ( RAP) following partial nephrectomy. Methods Open partial nephrectomhy was performed on a total of 464 cases of renal cell cancer from July 2003 to May 2010. Five patients ( 1. 1% ) had postoperative hem-
文摘生物量(biomass)是微生物高密度发酵过程中必须监控的关键指标之一,常用细胞光密度(optical density,OD)来测定。相较于传统的取样离线检测,实时在位监测技术具有无损、反馈快速和污染减少等优点,能够有效调控和优化发酵过程。为实现发酵过程中关键指标的实时反馈,本研究构建了一个基于漫反射近红外光谱仪的在位监测平台,用于虾青素的高密度发酵过程中生物量的监测。通过实施光谱异常值剔除、比较不同的光谱预处理方法以及间隔偏最小二乘法(interval partial least squares,i-PLS)光谱波段分析,结果表明在1417-1650 nm波长范围内存在虾青素发酵生物量的特征波段。在此波段基础上建立的生物量动态预测模型交互验证决定系数(determination coefficient of cross validation,Rcv2)和交叉验证均方根误差(root mean square error of cross validation,RMSECV)分别为0.973和9.32。经过3批次发酵的外部验证表明采用i-PLS方法建立的生物量模型在细胞光密度(OD600)2.46-180.50范围内进行监测,OD平均绝对误差(mean absolute error,MAE)为6.28,展现出较高的预测准确性和稳定性。这表明该模型在虾青素高密度发酵过程生物量监测中具有应用前景。
