Having devoted his life to building cultural,educational,and economic ties with China for over three decades,Tom Watkins shares his personal observations and perspectives on China’s latest development and its efforts...Having devoted his life to building cultural,educational,and economic ties with China for over three decades,Tom Watkins shares his personal observations and perspectives on China’s latest development and its efforts to build a community with shared future for all mankind.展开更多
It is not exaggerating to say that almost everybody in China knows about Tong Ren Tang, a traditional Chinese medicine drugstore in Beijing. And even many foreigners, who have never set foot on Chinese soil, know that...It is not exaggerating to say that almost everybody in China knows about Tong Ren Tang, a traditional Chinese medicine drugstore in Beijing. And even many foreigners, who have never set foot on Chinese soil, know that there is the Great Wall in China and a Tong Ren Tang in Beijing. Tong Ren Tang, which was opened in the eighth year (1669) of展开更多
The widespread application of new technologies,while empowering women with new opportunities,might also put them at disadvantage.For example,in comparison with males,the application of AI might be more likely to cost ...The widespread application of new technologies,while empowering women with new opportunities,might also put them at disadvantage.For example,in comparison with males,the application of AI might be more likely to cost them their jobs.Meanwhile,women are missing out the opportunity to participate in the policy-making process–they are absent from the table.If no change is made in the current policies,we will miss the goal to achieve gender equality,the fifth of the 17 Sustainable Development Goals set for UN’s 2030 Agenda for Sustainable Development,warned elite women scientists with the Organization for Women in Science for the Developing World(OWSD).What shall be done now?How can we make a difference?They are in action to help.展开更多
IN television and film it＇s common to hear the line ＂The moment I saw her, I told myself, ＇She＇s the one!＂ But in the real world, the typical phrase tends to be more along the lines of＂I never thought I would ha...IN television and film it＇s common to hear the line ＂The moment I saw her, I told myself, ＇She＇s the one!＂ But in the real world, the typical phrase tends to be more along the lines of＂I never thought I would have this kind of person as my soul mate.＂ And if you look at the person speaking, you＇ll surely see the glow of happiness on his face.展开更多
Regarding the first of the twenty-four Solar Terms,there has been controversy since the Qin and Han dynasties.Some people think it is the Winter Solstice,while others believe it is the Beginning of Spring.However,whet...Regarding the first of the twenty-four Solar Terms,there has been controversy since the Qin and Han dynasties.Some people think it is the Winter Solstice,while others believe it is the Beginning of Spring.However,whether in traditional agricultural society or contemporary daily life,it is commonly believed that the Beginning of Spring should be the first which is more in line with the change of seasons.展开更多
输电线路上附着的异物可能诱发相间短路、绝缘击穿等恶性事故,若未及时处理可能造成严重后果。为提高输电线路异物检测精度,本文提出基于跨尺度特征交互的输电线路异物检测器(EOPFormer),通过采用空洞多维度注意力模块(DilatedMDTA)和...输电线路上附着的异物可能诱发相间短路、绝缘击穿等恶性事故,若未及时处理可能造成严重后果。为提高输电线路异物检测精度,本文提出基于跨尺度特征交互的输电线路异物检测器(EOPFormer),通过采用空洞多维度注意力模块(DilatedMDTA)和多级空洞卷积与分组通道自注意力机制,增强模型对遮挡小尺度飘挂物的特征表达能力。本文还提出了一种基于代理注意力机制(Agent Attention)的跨尺度特征交互模块,实现网络对飘挂物关键区域聚焦。同时,本文构建了一个大型输电线路飘挂物检测数据集,包含气球、风筝、鸟巢和垃圾四类异物,共计7339张影像、7401个实例。提出的方法平均精度均值和F1分别为94.5%和96.0%,性能优于“你只看一次”目标检测算法(you only look once,YOLO)v5s等主流检测模型,相较于表现最佳的YOLOv8s,平均精度均值也有所提升。展开更多
The United States appears poised to use the Hawaii APEC Summit to bolster its presence in the Asia Pacific The United States will host the 19th APEC Economic Leaders’ Meeting in Honolulu,
Chinese President Xi Jinping has guided China through a year of resilient growth via forward-looking reforms and innovation-driven transformation that is shaping the nation’s economic trajectory for 2026 and beyond.
Since Gome acquired China Paradise in 2006, it has moved quickly to consolidate its position as the strongest electronics retailer in China. As part of its efforts, Gome plans to raise $800 million.
AIM:To construct an intelligent segmentation scheme for precise localization of central serous chorioretinopathy(CSC)leakage points,thereby enabling ophthalmologists to deliver accurate laser treatment without navigat...AIM:To construct an intelligent segmentation scheme for precise localization of central serous chorioretinopathy(CSC)leakage points,thereby enabling ophthalmologists to deliver accurate laser treatment without navigational laser equipment.METHODS:A dataset with dual labels(point-level and pixel-level)was first established based on fundus fluorescein angiography(FFA)images of CSC and subsequently divided into training(102 images),validation(40 images),and test(40 images)datasets.An intelligent segmentation method was then developed,based on the You Only Look Once version 8 Pose Estimation(YOLOv8-Pose)model and segment anything model(SAM),to segment CSC leakage points.Next,the YOLOv8-Pose model was trained for 200 epochs,and the best-performing model was selected to form the optimal combination with SAM.Additionally,the classic five types of U-Net series models[i.e.,U-Net,recurrent residual U-Net(R2U-Net),attention U-Net(AttU-Net),recurrent residual attention U-Net(R2AttUNet),and nested U-Net(UNet^(++))]were initialized with three random seeds and trained for 200 epochs,resulting in a total of 15 baseline models for comparison.Finally,based on the metrics including Dice similarity coefficient(DICE),intersection over union(IoU),precision,recall,precisionrecall(PR)curve,and receiver operating characteristic(ROC)curve,the proposed method was compared with baseline models through quantitative and qualitative experiments for leakage point segmentation,thereby demonstrating its effectiveness.RESULTS:With the increase of training epochs,the mAP50-95,Recall,and precision of the YOLOv8-Pose model showed a significant increase and tended to stabilize,and it achieved a preliminary localization success rate of 90%(i.e.,36 images)for CSC leakage points in 40 test images.Using manually expert-annotated pixel-level labels as the ground truth,the proposed method achieved outcomes with a DICE of 57.13%,an IoU of 45.31%,a precision of 45.91%,a recall of 93.57%,an area under the PR curve(AUC-PR)of 0.78 and an area under the ROC curve(AUC-ROC)of 0.97,which enables more accurate segmentation of CSC leakage points.CONCLUSION:By combining the precise localization capability of the YOLOv8-Pose model with the robust and flexible segmentation ability of SAM,the proposed method not only demonstrates the effectiveness of the YOLOv8-Pose model in detecting keypoint coordinates of CSC leakage points from the perspective of application innovation but also establishes a novel approach for accurate segmentation of CSC leakage points through the“detect-then-segment”strategy,thereby providing a potential auxiliary means for the automatic and precise realtime localization of leakage points during traditional laser photocoagulation for CSC.展开更多
Historically, hotel classification systems were developed to ensure safe and reliable lodging and food for travellers at a time when very few such trustworthy establishments existed. With the unprecedented growth of i...Historically, hotel classification systems were developed to ensure safe and reliable lodging and food for travellers at a time when very few such trustworthy establishments existed. With the unprecedented growth of international tourism in the past fifty years, during which hospitality has reach the status of a mature industry, the focus has moved from consumer protection (generally guaranteed by national regulations and legislation) to consumer information. Today, standardization and competitive marketing of hotel services to foreign customers and tourist professionals have emerged as driving forces for instituting a local or national hotel classification system.展开更多
WOMEN in Ruijin made enormous contributions to the Chinese revolution during the war, and today, in the tide of economic reform and opening, Ruijin women are working hard for their own futures and the prospects of the...WOMEN in Ruijin made enormous contributions to the Chinese revolution during the war, and today, in the tide of economic reform and opening, Ruijin women are working hard for their own futures and the prospects of their hometown. Two Capable Rural Women Zhong Fengying lives in Jieman Village, Shazhouba Town. In the 70s, she became a leader of the village women’s production team. In 1993, seeing the town-owned orchards were untended due to Poor management, she took the initiative to contract 500 mu of an orange orchard. She signed a 15-year contract with the town government.展开更多
XIE Zhao was 72 before she retired from her nursing post at the Beijing Yucai School. Today, the 103-year-old is a great grandmother,and her family has expanded to 53 members. In recent years she has been living with ...XIE Zhao was 72 before she retired from her nursing post at the Beijing Yucai School. Today, the 103-year-old is a great grandmother,and her family has expanded to 53 members. In recent years she has been living with her 65-year-old daughter—展开更多
<Abstact>e She nationality, one of the China's many minority nationalities, call themselves Shanha. Ha means vip in the She language. The She people are mainly distributed throughout the mountainous areas ...<Abstact>e She nationality, one of the China's many minority nationalities, call themselves Shanha. Ha means vip in the She language. The She people are mainly distributed throughout the mountainous areas of over 80 counties and cities in the five provinces of Fujian, Zhejiang, Jiangxi, Guangdong and Anhui. Most of the 368,000 She people live in Fujian and Zhejiang. As a whole, they are scattered in different areas and live together in small groups. Their villages are adjacent to Chinese villages. The She people mainly engage in farming rice and sweet potatoes, in addition to forestry, tea planting and hunting. The She nationality have their own language which is similar to the Kejia dialect of Mandarin. But because they do not have their own script, they use Mandarin. The She people have three major family names—Lei, Zhong and Lan—which are said to be the descendants of several ancestors of the She nationality. The She people take delight in singing folk songs. In their daily life and work, they sing songs as dialogue. The She people prefer to dress in dark blue. While men's clothing is similar to the Hans, the women dress in a more traditional style. Since 1978 the living standard of the She people has been greatly improved.展开更多
针对一维光子晶体制备过程中无序效应的引入问题,基于Look and Say数列与一维光子晶体结构构造了一种一维Look and Say序列分形结构光子晶体,仿真实现了在介质折射率与介质层厚度中引入适当无序效应对该种晶体反射图谱的影响分析。仿真...针对一维光子晶体制备过程中无序效应的引入问题,基于Look and Say数列与一维光子晶体结构构造了一种一维Look and Say序列分形结构光子晶体,仿真实现了在介质折射率与介质层厚度中引入适当无序效应对该种晶体反射图谱的影响分析。仿真表明:在介质折射率中引入适当高度无序效应、在介质层厚度中引入适当低度无序效应可以使得该种晶体的反射图谱获得较宽的高反射率频带,为部分光学器件反射性能的提高提供了参考依据。所提出分形光子晶体的反射和透射特性调控方法应用于实验教学后,可使学生更直观地理解复杂的理论知识,有效提升学生的动手操作能力、数据分析能力和解决实际工程问题的能力。展开更多
文摘Having devoted his life to building cultural,educational,and economic ties with China for over three decades,Tom Watkins shares his personal observations and perspectives on China’s latest development and its efforts to build a community with shared future for all mankind.
文摘It is not exaggerating to say that almost everybody in China knows about Tong Ren Tang, a traditional Chinese medicine drugstore in Beijing. And even many foreigners, who have never set foot on Chinese soil, know that there is the Great Wall in China and a Tong Ren Tang in Beijing. Tong Ren Tang, which was opened in the eighth year (1669) of
文摘The widespread application of new technologies,while empowering women with new opportunities,might also put them at disadvantage.For example,in comparison with males,the application of AI might be more likely to cost them their jobs.Meanwhile,women are missing out the opportunity to participate in the policy-making process–they are absent from the table.If no change is made in the current policies,we will miss the goal to achieve gender equality,the fifth of the 17 Sustainable Development Goals set for UN’s 2030 Agenda for Sustainable Development,warned elite women scientists with the Organization for Women in Science for the Developing World(OWSD).What shall be done now?How can we make a difference?They are in action to help.
文摘IN television and film it＇s common to hear the line ＂The moment I saw her, I told myself, ＇She＇s the one!＂ But in the real world, the typical phrase tends to be more along the lines of＂I never thought I would have this kind of person as my soul mate.＂ And if you look at the person speaking, you＇ll surely see the glow of happiness on his face.
文摘Regarding the first of the twenty-four Solar Terms,there has been controversy since the Qin and Han dynasties.Some people think it is the Winter Solstice,while others believe it is the Beginning of Spring.However,whether in traditional agricultural society or contemporary daily life,it is commonly believed that the Beginning of Spring should be the first which is more in line with the change of seasons.
文摘输电线路上附着的异物可能诱发相间短路、绝缘击穿等恶性事故,若未及时处理可能造成严重后果。为提高输电线路异物检测精度,本文提出基于跨尺度特征交互的输电线路异物检测器(EOPFormer),通过采用空洞多维度注意力模块(DilatedMDTA)和多级空洞卷积与分组通道自注意力机制,增强模型对遮挡小尺度飘挂物的特征表达能力。本文还提出了一种基于代理注意力机制(Agent Attention)的跨尺度特征交互模块,实现网络对飘挂物关键区域聚焦。同时,本文构建了一个大型输电线路飘挂物检测数据集,包含气球、风筝、鸟巢和垃圾四类异物,共计7339张影像、7401个实例。提出的方法平均精度均值和F1分别为94.5%和96.0%,性能优于“你只看一次”目标检测算法(you only look once,YOLO)v5s等主流检测模型,相较于表现最佳的YOLOv8s,平均精度均值也有所提升。
文摘The United States appears poised to use the Hawaii APEC Summit to bolster its presence in the Asia Pacific The United States will host the 19th APEC Economic Leaders’ Meeting in Honolulu,
文摘Chinese President Xi Jinping has guided China through a year of resilient growth via forward-looking reforms and innovation-driven transformation that is shaping the nation’s economic trajectory for 2026 and beyond.
文摘Since Gome acquired China Paradise in 2006, it has moved quickly to consolidate its position as the strongest electronics retailer in China. As part of its efforts, Gome plans to raise $800 million.
基金Supported by the Shenzhen Science and Technology Program(No.JCYJ20240813152704006)the National Natural Science Foundation of China(No.62401259)+2 种基金the Fundamental Research Funds for the Central Universities(No.NZ2024036)the Postdoctoral Fellowship Program of CPSF(No.GZC20242228)High Performance Computing Platform of Nanjing University of Aeronautics and Astronautics。
文摘AIM:To construct an intelligent segmentation scheme for precise localization of central serous chorioretinopathy(CSC)leakage points,thereby enabling ophthalmologists to deliver accurate laser treatment without navigational laser equipment.METHODS:A dataset with dual labels(point-level and pixel-level)was first established based on fundus fluorescein angiography(FFA)images of CSC and subsequently divided into training(102 images),validation(40 images),and test(40 images)datasets.An intelligent segmentation method was then developed,based on the You Only Look Once version 8 Pose Estimation(YOLOv8-Pose)model and segment anything model(SAM),to segment CSC leakage points.Next,the YOLOv8-Pose model was trained for 200 epochs,and the best-performing model was selected to form the optimal combination with SAM.Additionally,the classic five types of U-Net series models[i.e.,U-Net,recurrent residual U-Net(R2U-Net),attention U-Net(AttU-Net),recurrent residual attention U-Net(R2AttUNet),and nested U-Net(UNet^(++))]were initialized with three random seeds and trained for 200 epochs,resulting in a total of 15 baseline models for comparison.Finally,based on the metrics including Dice similarity coefficient(DICE),intersection over union(IoU),precision,recall,precisionrecall(PR)curve,and receiver operating characteristic(ROC)curve,the proposed method was compared with baseline models through quantitative and qualitative experiments for leakage point segmentation,thereby demonstrating its effectiveness.RESULTS:With the increase of training epochs,the mAP50-95,Recall,and precision of the YOLOv8-Pose model showed a significant increase and tended to stabilize,and it achieved a preliminary localization success rate of 90%(i.e.,36 images)for CSC leakage points in 40 test images.Using manually expert-annotated pixel-level labels as the ground truth,the proposed method achieved outcomes with a DICE of 57.13%,an IoU of 45.31%,a precision of 45.91%,a recall of 93.57%,an area under the PR curve(AUC-PR)of 0.78 and an area under the ROC curve(AUC-ROC)of 0.97,which enables more accurate segmentation of CSC leakage points.CONCLUSION:By combining the precise localization capability of the YOLOv8-Pose model with the robust and flexible segmentation ability of SAM,the proposed method not only demonstrates the effectiveness of the YOLOv8-Pose model in detecting keypoint coordinates of CSC leakage points from the perspective of application innovation but also establishes a novel approach for accurate segmentation of CSC leakage points through the“detect-then-segment”strategy,thereby providing a potential auxiliary means for the automatic and precise realtime localization of leakage points during traditional laser photocoagulation for CSC.
文摘Historically, hotel classification systems were developed to ensure safe and reliable lodging and food for travellers at a time when very few such trustworthy establishments existed. With the unprecedented growth of international tourism in the past fifty years, during which hospitality has reach the status of a mature industry, the focus has moved from consumer protection (generally guaranteed by national regulations and legislation) to consumer information. Today, standardization and competitive marketing of hotel services to foreign customers and tourist professionals have emerged as driving forces for instituting a local or national hotel classification system.
文摘WOMEN in Ruijin made enormous contributions to the Chinese revolution during the war, and today, in the tide of economic reform and opening, Ruijin women are working hard for their own futures and the prospects of their hometown. Two Capable Rural Women Zhong Fengying lives in Jieman Village, Shazhouba Town. In the 70s, she became a leader of the village women’s production team. In 1993, seeing the town-owned orchards were untended due to Poor management, she took the initiative to contract 500 mu of an orange orchard. She signed a 15-year contract with the town government.
文摘XIE Zhao was 72 before she retired from her nursing post at the Beijing Yucai School. Today, the 103-year-old is a great grandmother,and her family has expanded to 53 members. In recent years she has been living with her 65-year-old daughter—
文摘<Abstact>e She nationality, one of the China's many minority nationalities, call themselves Shanha. Ha means vip in the She language. The She people are mainly distributed throughout the mountainous areas of over 80 counties and cities in the five provinces of Fujian, Zhejiang, Jiangxi, Guangdong and Anhui. Most of the 368,000 She people live in Fujian and Zhejiang. As a whole, they are scattered in different areas and live together in small groups. Their villages are adjacent to Chinese villages. The She people mainly engage in farming rice and sweet potatoes, in addition to forestry, tea planting and hunting. The She nationality have their own language which is similar to the Kejia dialect of Mandarin. But because they do not have their own script, they use Mandarin. The She people have three major family names—Lei, Zhong and Lan—which are said to be the descendants of several ancestors of the She nationality. The She people take delight in singing folk songs. In their daily life and work, they sing songs as dialogue. The She people prefer to dress in dark blue. While men's clothing is similar to the Hans, the women dress in a more traditional style. Since 1978 the living standard of the She people has been greatly improved.
文摘针对一维光子晶体制备过程中无序效应的引入问题,基于Look and Say数列与一维光子晶体结构构造了一种一维Look and Say序列分形结构光子晶体,仿真实现了在介质折射率与介质层厚度中引入适当无序效应对该种晶体反射图谱的影响分析。仿真表明:在介质折射率中引入适当高度无序效应、在介质层厚度中引入适当低度无序效应可以使得该种晶体的反射图谱获得较宽的高反射率频带,为部分光学器件反射性能的提高提供了参考依据。所提出分形光子晶体的反射和透射特性调控方法应用于实验教学后,可使学生更直观地理解复杂的理论知识,有效提升学生的动手操作能力、数据分析能力和解决实际工程问题的能力。
