The boundness and compactness of products of multiplication,composition and differentiation on weighted Bergman spaces in the unit ball are studied.We define the differentiation operator on the space of holomorphic fu...The boundness and compactness of products of multiplication,composition and differentiation on weighted Bergman spaces in the unit ball are studied.We define the differentiation operator on the space of holomorphic functions in the unit ball by radial derivative.Then we extend the Sharma's results.展开更多
棉花生长过程中受到害虫严重危害,因此精准的害虫检测已成为智慧农业体系中的关键环节。其中大量棉田害虫属于小目标,特征提取困难,而且害虫个体之间存在显著的尺寸差异,这限制了现有目标检测算法的性能。提出了一种结合离散小波变换与T...棉花生长过程中受到害虫严重危害,因此精准的害虫检测已成为智慧农业体系中的关键环节。其中大量棉田害虫属于小目标,特征提取困难,而且害虫个体之间存在显著的尺寸差异,这限制了现有目标检测算法的性能。提出了一种结合离散小波变换与Transformer的YOLO11目标检测算法——WTNet-YOLO(wavelet and Transformer network-YOLO)。融合部分卷积与多尺度深度卷积构建C3K2-MKPF模块,增强对多尺寸目标的特征提取能力。在颈部结合小波域融合模块(wavelet domain fusion module,WDFM)和跨阶段部分局部和全局模块(cross stage partial local and global block,CSP-LGB),提升各尺寸害虫的频域信息表达与全局信息定位。引入多尺度自适应空间注意门(multi-scale adaptive spatial attention gate,MASAG),动态融合主干与颈部的跨层特征,强化空间与语义信息表达。为验证相关方法,构建了一个棉田害虫数据集YST-PestCotton(yellow sticky trap pest dataset in cotton),涵盖多个尺寸范围的害虫,具有显著的尺度多样性,害虫像素面积最大可相差1200多倍。实验表明,在YST-PestCotton上mAP50提升了3.1个百分点,同时将害虫按目标框面积划分为0~256、256~512、512~1024和大于1024四个子集,mAP50分别提升2.4、1.3、1.5、3个百分点。在公开数据集Yellow sticky traps上mAP50达到了最高的95.3%。综合来看,WTNet-YOLO能够有效应对小目标内部的尺寸差异,同时兼顾不同尺寸害虫的检测需求。展开更多
[目的]介绍经皮椎弓钉固定联合射频消融治疗多发性骨髓瘤椎体骨折的手术技术与初步临床疗效。[方法]2020年7月—2023年7月对21例多发性骨髓瘤椎体骨折行上述治疗。跨病椎上下分别各置入1组经皮椎弓根螺钉,于伤椎主要病变侧穿刺。置入套...[目的]介绍经皮椎弓钉固定联合射频消融治疗多发性骨髓瘤椎体骨折的手术技术与初步临床疗效。[方法]2020年7月—2023年7月对21例多发性骨髓瘤椎体骨折行上述治疗。跨病椎上下分别各置入1组经皮椎弓根螺钉,于伤椎主要病变侧穿刺。置入套管,取活组织检查后,置入射频电极,并于同侧椎弓根处放置测温针行术中温度监测,必要时行术中脊髓神经电生理监测,启动热消融,给予2~3个周期的热消融处理。置入预弯双侧棒,调整紧固钉-棒系统,缝合切口。术后佩戴支具进行康复功能锻炼,并进一步接受系统内科治疗。[结果]21例患者均顺利完成手术,无血管、神经损伤等严重并发症。本组患者随访18个月以上,与术前相比,末次随访时疼痛评分(visual analog scale,VAS)[分,(7.6±0.8),(2.0±0.8),P<0.001]显著下降,而KPS评分(Karnofsky Performance Status)[分,(51.4±1.8),(90.0±1.3),P<0.001]和Frankal评分[分,(3.4±1.8),(5.0±0.3),P<0.001]显著增加。局部脊柱Cobb角术后矫正率>80%,无内固定松动或断裂。[结论]经皮椎弓钉固定联合射频消融术不仅微创,而且在缓解疼痛、稳定椎体、控制肿瘤进展等方面疗效确切。展开更多
Objective The purpose of this experiment was to investigate the effects of exogenous hormone factors on subculture multiplication and root induction of tis-suecultured seedlings in mulberry. [Method] The aseptic seedl...Objective The purpose of this experiment was to investigate the effects of exogenous hormone factors on subculture multiplication and root induction of tis-suecultured seedlings in mulberry. [Method] The aseptic seedlings of Guisangyou 12 were used as the materials and the comparative experiment on subculture multi-plication and root induction used different kinds,concentrations and combinations of exogenous hormones. [Result] The hormone combination of 0.1 mg/L IBA＋1.5 mg/L 6-BA＋0.03 mg/L TDZ showed the best effects to bud multiplication, and the multiple of bud multiplication was 5.28. The effects of NAA was better than IBA and IAA on root induction. The hormone combination of 2.0 mg/L NAA＋1.0 mg/L PP333 was most suitable to the root induction, in which the rooting rate arrived to 100%, the root number was 7.01 and the root length was 1.38 cm on average. [Conclusion] The results wil provide some technical reference for large-scale propagation of mul-berry seedlings in vitro.展开更多
基金Supported by Natural Science Foundation of Guangdong Province in China(2018KTSCX161)。
文摘The boundness and compactness of products of multiplication,composition and differentiation on weighted Bergman spaces in the unit ball are studied.We define the differentiation operator on the space of holomorphic functions in the unit ball by radial derivative.Then we extend the Sharma's results.
文摘棉花生长过程中受到害虫严重危害,因此精准的害虫检测已成为智慧农业体系中的关键环节。其中大量棉田害虫属于小目标,特征提取困难,而且害虫个体之间存在显著的尺寸差异,这限制了现有目标检测算法的性能。提出了一种结合离散小波变换与Transformer的YOLO11目标检测算法——WTNet-YOLO(wavelet and Transformer network-YOLO)。融合部分卷积与多尺度深度卷积构建C3K2-MKPF模块,增强对多尺寸目标的特征提取能力。在颈部结合小波域融合模块(wavelet domain fusion module,WDFM)和跨阶段部分局部和全局模块(cross stage partial local and global block,CSP-LGB),提升各尺寸害虫的频域信息表达与全局信息定位。引入多尺度自适应空间注意门(multi-scale adaptive spatial attention gate,MASAG),动态融合主干与颈部的跨层特征,强化空间与语义信息表达。为验证相关方法,构建了一个棉田害虫数据集YST-PestCotton(yellow sticky trap pest dataset in cotton),涵盖多个尺寸范围的害虫,具有显著的尺度多样性,害虫像素面积最大可相差1200多倍。实验表明,在YST-PestCotton上mAP50提升了3.1个百分点,同时将害虫按目标框面积划分为0~256、256~512、512~1024和大于1024四个子集,mAP50分别提升2.4、1.3、1.5、3个百分点。在公开数据集Yellow sticky traps上mAP50达到了最高的95.3%。综合来看,WTNet-YOLO能够有效应对小目标内部的尺寸差异,同时兼顾不同尺寸害虫的检测需求。
文摘[目的]介绍经皮椎弓钉固定联合射频消融治疗多发性骨髓瘤椎体骨折的手术技术与初步临床疗效。[方法]2020年7月—2023年7月对21例多发性骨髓瘤椎体骨折行上述治疗。跨病椎上下分别各置入1组经皮椎弓根螺钉,于伤椎主要病变侧穿刺。置入套管,取活组织检查后,置入射频电极,并于同侧椎弓根处放置测温针行术中温度监测,必要时行术中脊髓神经电生理监测,启动热消融,给予2~3个周期的热消融处理。置入预弯双侧棒,调整紧固钉-棒系统,缝合切口。术后佩戴支具进行康复功能锻炼,并进一步接受系统内科治疗。[结果]21例患者均顺利完成手术,无血管、神经损伤等严重并发症。本组患者随访18个月以上,与术前相比,末次随访时疼痛评分(visual analog scale,VAS)[分,(7.6±0.8),(2.0±0.8),P<0.001]显著下降,而KPS评分(Karnofsky Performance Status)[分,(51.4±1.8),(90.0±1.3),P<0.001]和Frankal评分[分,(3.4±1.8),(5.0±0.3),P<0.001]显著增加。局部脊柱Cobb角术后矫正率>80%,无内固定松动或断裂。[结论]经皮椎弓钉固定联合射频消融术不仅微创,而且在缓解疼痛、稳定椎体、控制肿瘤进展等方面疗效确切。
基金Supported by Post-graduate Innovation Program of Guangxi(YCSZ2013007)~~
文摘Objective The purpose of this experiment was to investigate the effects of exogenous hormone factors on subculture multiplication and root induction of tis-suecultured seedlings in mulberry. [Method] The aseptic seedlings of Guisangyou 12 were used as the materials and the comparative experiment on subculture multi-plication and root induction used different kinds,concentrations and combinations of exogenous hormones. [Result] The hormone combination of 0.1 mg/L IBA＋1.5 mg/L 6-BA＋0.03 mg/L TDZ showed the best effects to bud multiplication, and the multiple of bud multiplication was 5.28. The effects of NAA was better than IBA and IAA on root induction. The hormone combination of 2.0 mg/L NAA＋1.0 mg/L PP333 was most suitable to the root induction, in which the rooting rate arrived to 100%, the root number was 7.01 and the root length was 1.38 cm on average. [Conclusion] The results wil provide some technical reference for large-scale propagation of mul-berry seedlings in vitro.
