威特球虫特号水溶性粉剂是镇江威特实业公司提供的一种抗球虫药,其中含盐酸氨丙琳10%,增效剂6%,为验证该药的疗效,我们选用15日龄 AA 内鸡进行了三批药效试验。试验结果显示,威特球虫特号高剂量组(1g:1000mL,即盐酸氨丙淋100 mg·kg...威特球虫特号水溶性粉剂是镇江威特实业公司提供的一种抗球虫药,其中含盐酸氨丙琳10%,增效剂6%,为验证该药的疗效,我们选用15日龄 AA 内鸡进行了三批药效试验。试验结果显示,威特球虫特号高剂量组(1g:1000mL,即盐酸氨丙淋100 mg·kg<sup>-1</sup>,增效剂60mg·kg<sup>-1</sup>)的抗球虫指数分别为194.7,198.9和199.4,始终在抗球虫高效水平.威特球虫特号中剂量组(0.75g:1000mL,即盐酸氨丙淋75mg·kg<sup>-1</sup>,增效剂45mg·kg<sup>-1</sup>)的抗球虫指数是181、183和187.4,也属高效抗球虫范围。展开更多
The current impedance spectroscopy measurement techniques face difficulties in diagnosing solar cell faults due to issues such as cost,complexity,and accuracy.Therefore,a novel system was developed for precise broadba...The current impedance spectroscopy measurement techniques face difficulties in diagnosing solar cell faults due to issues such as cost,complexity,and accuracy.Therefore,a novel system was developed for precise broadband impedance spectrum measurement of solar cells,which was composed of an oscilloscope,a signal generator,and a sampling resistor.The results demonstrate concurrent accurate measurement of the impedance spectrum(50 Hz-0.1 MHz)and direct current voltametric characteristics.Comparative analysis with Keithley 2450 data yields a global relative error of approximately 6.70%,affirming the accuracy.Among excitation signals(sine,square,triangle,pulse waves),sine wave input yields the most accurate data,with a root mean square error of approximately 13.3016 and a global relative error of approximately 4.25%compared to theoretical data.Elevating reference resistance expands the half circle in the impedance spectrum.Proximity of reference resistance to that of the solar cell enhances the accuracy by mitigating line resistance influence.Measurement error is lower in high-frequency regions due to a higher signal-to-noise ratio.展开更多
In order to comprehensively analyze and compare the characteristics and utilization value of the new wheat variety Jingdong 23, the performance of Jingdong 23 was compared with a control variety based on the results i...In order to comprehensively analyze and compare the characteristics and utilization value of the new wheat variety Jingdong 23, the performance of Jingdong 23 was compared with a control variety based on the results in Beijing water con- servation regional test. The characteristics and yield structures of Jingdong 23 were analyzed. The results showed that the three factors of yield of Jingdong 23 were coordinated and the average yield of Jingdong 23 ranked in the first place among the 14 tested varieties （ten-location tests）. On average, the yield of Jingdong 23 was 4.5% more than that of the control Jingdong 8 in water conservation regional test and production test in Beijing. Jingdong 23 has a good adaptability, high and stable yield.展开更多
Finding channel sandbodies is an important task in oil and gas exploration due to the importance of fluvial reservoirs. It is difficult to describe fluvial reservoirs in detail owing to their frequent changes and seri...Finding channel sandbodies is an important task in oil and gas exploration due to the importance of fluvial reservoirs. It is difficult to describe fluvial reservoirs in detail owing to their frequent changes and serious intersections, as well as limitations of S/N ratio and seismic data resolution. Based on the Laohekou 3D data in Shengli Oilfield, we analyze the general characteristics of fluvial reservoirs in this area, from which we find that they are characterized by strong amplitudes on seismic profiles, high continuity on time slices, and low frequency in the frequency domain. In addition, a cluster of strong string-bead- like reflections was found after color processing and detailed interpretation. To understand this observation, we conduct forward modeling to explain the mechanism. This provides a new way to identify ancient channels in similar areas. By using the multi-attribute fusion and RGB display techniques, channel incision is more obvious and the characteristics of the channel structures are manifested much better. Finally, we introduce and apply multi-wavelet detection technology to identify weaker fluvial reservoir signals.展开更多
文摘威特球虫特号水溶性粉剂是镇江威特实业公司提供的一种抗球虫药,其中含盐酸氨丙琳10%,增效剂6%,为验证该药的疗效,我们选用15日龄 AA 内鸡进行了三批药效试验。试验结果显示,威特球虫特号高剂量组(1g:1000mL,即盐酸氨丙淋100 mg·kg<sup>-1</sup>,增效剂60mg·kg<sup>-1</sup>)的抗球虫指数分别为194.7,198.9和199.4,始终在抗球虫高效水平.威特球虫特号中剂量组(0.75g:1000mL,即盐酸氨丙淋75mg·kg<sup>-1</sup>,增效剂45mg·kg<sup>-1</sup>)的抗球虫指数是181、183和187.4,也属高效抗球虫范围。
基金supported by National Natural Science Foundation of China(Nos.12064027,62065014,12464010)2022 Jiangxi Province Highlevel and High-skilled Leading Talent Training Project Selected(No.63)+1 种基金Jiujiang“Xuncheng Talents”(No.JJXC2023032)Nanchang Hangkong University Education Reform Project(No.JY21069).
文摘The current impedance spectroscopy measurement techniques face difficulties in diagnosing solar cell faults due to issues such as cost,complexity,and accuracy.Therefore,a novel system was developed for precise broadband impedance spectrum measurement of solar cells,which was composed of an oscilloscope,a signal generator,and a sampling resistor.The results demonstrate concurrent accurate measurement of the impedance spectrum(50 Hz-0.1 MHz)and direct current voltametric characteristics.Comparative analysis with Keithley 2450 data yields a global relative error of approximately 6.70%,affirming the accuracy.Among excitation signals(sine,square,triangle,pulse waves),sine wave input yields the most accurate data,with a root mean square error of approximately 13.3016 and a global relative error of approximately 4.25%compared to theoretical data.Elevating reference resistance expands the half circle in the impedance spectrum.Proximity of reference resistance to that of the solar cell enhances the accuracy by mitigating line resistance influence.Measurement error is lower in high-frequency regions due to a higher signal-to-noise ratio.
基金Supported by Science and Technology Projects of Crop Seed Industry of National SciTech Support Plan(2011BAD35B03)~~
文摘In order to comprehensively analyze and compare the characteristics and utilization value of the new wheat variety Jingdong 23, the performance of Jingdong 23 was compared with a control variety based on the results in Beijing water con- servation regional test. The characteristics and yield structures of Jingdong 23 were analyzed. The results showed that the three factors of yield of Jingdong 23 were coordinated and the average yield of Jingdong 23 ranked in the first place among the 14 tested varieties （ten-location tests）. On average, the yield of Jingdong 23 was 4.5% more than that of the control Jingdong 8 in water conservation regional test and production test in Beijing. Jingdong 23 has a good adaptability, high and stable yield.
基金sponsored by The Science and Technology Research Project,Shengli Oilfield (Grant No. YKW1002)
文摘Finding channel sandbodies is an important task in oil and gas exploration due to the importance of fluvial reservoirs. It is difficult to describe fluvial reservoirs in detail owing to their frequent changes and serious intersections, as well as limitations of S/N ratio and seismic data resolution. Based on the Laohekou 3D data in Shengli Oilfield, we analyze the general characteristics of fluvial reservoirs in this area, from which we find that they are characterized by strong amplitudes on seismic profiles, high continuity on time slices, and low frequency in the frequency domain. In addition, a cluster of strong string-bead- like reflections was found after color processing and detailed interpretation. To understand this observation, we conduct forward modeling to explain the mechanism. This provides a new way to identify ancient channels in similar areas. By using the multi-attribute fusion and RGB display techniques, channel incision is more obvious and the characteristics of the channel structures are manifested much better. Finally, we introduce and apply multi-wavelet detection technology to identify weaker fluvial reservoir signals.
