Understanding how ecological engineering influences the trade-offs and synergies among regional ecosystem services can provide valuable insights for enhancing ecosystem functionality and promoting a virtuous and susta...Understanding how ecological engineering influences the trade-offs and synergies among regional ecosystem services can provide valuable insights for enhancing ecosystem functionality and promoting a virtuous and sustainable ecological cycle.This study focuses on the Changbai Mountain region,a key ecological conservation area in northeastern China.It employs global spatial autocorrelation analysis and bivariate spatial correlation methods to explore the spatial patterns of five key ecosystem services—soil retention,carbon sequestration,water purification,habitat quality,and water yield—as well as the spatial heterogeneity of the trade-offs and synergies among them.The results indicate that:(1)Forest land is the dominant land-use type in the study area,with land-use changes primarily occurring among grassland,forest,and cropland.(2)The implementation of the“Mountain-River Project”has significantly enhanced ecosystem service capacities.Specifically,the average habitat quality has remained stable at 0.97;average water yield increased from 716 mm to 743 mm;average nitrogen purification rose from 0.025 to 0.028;and total soil retention increased from 8.7×10^(7)tons to 5.09×10^(8)tons.(3)Synergistic relationships dominate the interactions among individual ecosystem services in the Changbai Mountain region.The implementation of ecological engineering has further strengthened synergies—particularly among soil retention,water yield,and other services.However,the short-term impacts of the project have somewhat weakened the synergies between water purification and other ecosystem services.These findings offer a novel perspective for understanding the effects of ecological engineering on ecosystem services and provide a scientific basis for future ecological restoration planning and management.展开更多
In the international shipping industry, digital intelligence transformation has become essential, with both governments and enterprises actively working to integrate diverse datasets. The domain of maritime and shippi...In the international shipping industry, digital intelligence transformation has become essential, with both governments and enterprises actively working to integrate diverse datasets. The domain of maritime and shipping is characterized by a vast array of document types, filled with complex, large-scale, and often chaotic knowledge and relationships. Effectively managing these documents is crucial for developing a Large Language Model (LLM) in the maritime domain, enabling practitioners to access and leverage valuable information. A Knowledge Graph (KG) offers a state-of-the-art solution for enhancing knowledge retrieval, providing more accurate responses and enabling context-aware reasoning. This paper presents a framework for utilizing maritime and shipping documents to construct a knowledge graph using GraphRAG, a hybrid tool combining graph-based retrieval and generation capabilities. The extraction of entities and relationships from these documents and the KG construction process are detailed. Furthermore, the KG is integrated with an LLM to develop a Q&A system, demonstrating that the system significantly improves answer accuracy compared to traditional LLMs. Additionally, the KG construction process is up to 50% faster than conventional LLM-based approaches, underscoring the efficiency of our method. This study provides a promising approach to digital intelligence in shipping, advancing knowledge accessibility and decision-making.展开更多
目的:观察保肾通络方对于气阴两虚兼血瘀证糖尿病肾脏病(DKD)患者的临床疗效及其对患者血清isthmin-1表达、尿足细胞数目的影响。方法:收集DKD(G2A3期)患者60例,随机分为治疗组和对照组,两组患者均给予饮食控制、降糖、降压等基础治疗,...目的:观察保肾通络方对于气阴两虚兼血瘀证糖尿病肾脏病(DKD)患者的临床疗效及其对患者血清isthmin-1表达、尿足细胞数目的影响。方法:收集DKD(G2A3期)患者60例,随机分为治疗组和对照组,两组患者均给予饮食控制、降糖、降压等基础治疗,而治疗组在基础治疗的同时加服保肾通络方,干预12周,后对两组患者治疗前后24 h尿蛋白(24 h UTP)、尿白蛋白肌酐比(ACR)、血清肌酐(Scr)、血清尿素氮(BUN)、肾小球滤过率(eGFR)、中医证候积分、尿足细胞数目及血清isthmin-1水平进行比较。结果:治疗组总有效率明显高于对照组(P<0.05),两组患者经治疗后,治疗组患者的24 h UTP、尿ACR、血清肌酐、血清尿素氮及中医证候积分均较对照组明显降低(P<0.01),eGFR明显升高(P<0.01)。与对照组相比,治疗组患者治疗后的尿足细胞数目及血清isthmin-1水平明显降低(P<0.01)。结论:保肾通络方可以降低DKD患者蛋白尿、保护肾功能,同时可以降低血清isthmin-1水平及减少尿足细胞数目。展开更多
基金supported by the coupling mechanism and system restoration modes of Mountains-Rivers-Forests-Farmlands-Lakes-Grasslands,National Key Research and Development Program of the 14th Five-Year,China(2022YFF1303201).
文摘Understanding how ecological engineering influences the trade-offs and synergies among regional ecosystem services can provide valuable insights for enhancing ecosystem functionality and promoting a virtuous and sustainable ecological cycle.This study focuses on the Changbai Mountain region,a key ecological conservation area in northeastern China.It employs global spatial autocorrelation analysis and bivariate spatial correlation methods to explore the spatial patterns of five key ecosystem services—soil retention,carbon sequestration,water purification,habitat quality,and water yield—as well as the spatial heterogeneity of the trade-offs and synergies among them.The results indicate that:(1)Forest land is the dominant land-use type in the study area,with land-use changes primarily occurring among grassland,forest,and cropland.(2)The implementation of the“Mountain-River Project”has significantly enhanced ecosystem service capacities.Specifically,the average habitat quality has remained stable at 0.97;average water yield increased from 716 mm to 743 mm;average nitrogen purification rose from 0.025 to 0.028;and total soil retention increased from 8.7×10^(7)tons to 5.09×10^(8)tons.(3)Synergistic relationships dominate the interactions among individual ecosystem services in the Changbai Mountain region.The implementation of ecological engineering has further strengthened synergies—particularly among soil retention,water yield,and other services.However,the short-term impacts of the project have somewhat weakened the synergies between water purification and other ecosystem services.These findings offer a novel perspective for understanding the effects of ecological engineering on ecosystem services and provide a scientific basis for future ecological restoration planning and management.
文摘In the international shipping industry, digital intelligence transformation has become essential, with both governments and enterprises actively working to integrate diverse datasets. The domain of maritime and shipping is characterized by a vast array of document types, filled with complex, large-scale, and often chaotic knowledge and relationships. Effectively managing these documents is crucial for developing a Large Language Model (LLM) in the maritime domain, enabling practitioners to access and leverage valuable information. A Knowledge Graph (KG) offers a state-of-the-art solution for enhancing knowledge retrieval, providing more accurate responses and enabling context-aware reasoning. This paper presents a framework for utilizing maritime and shipping documents to construct a knowledge graph using GraphRAG, a hybrid tool combining graph-based retrieval and generation capabilities. The extraction of entities and relationships from these documents and the KG construction process are detailed. Furthermore, the KG is integrated with an LLM to develop a Q&A system, demonstrating that the system significantly improves answer accuracy compared to traditional LLMs. Additionally, the KG construction process is up to 50% faster than conventional LLM-based approaches, underscoring the efficiency of our method. This study provides a promising approach to digital intelligence in shipping, advancing knowledge accessibility and decision-making.
文摘目的:观察保肾通络方对于气阴两虚兼血瘀证糖尿病肾脏病(DKD)患者的临床疗效及其对患者血清isthmin-1表达、尿足细胞数目的影响。方法:收集DKD(G2A3期)患者60例,随机分为治疗组和对照组,两组患者均给予饮食控制、降糖、降压等基础治疗,而治疗组在基础治疗的同时加服保肾通络方,干预12周,后对两组患者治疗前后24 h尿蛋白(24 h UTP)、尿白蛋白肌酐比(ACR)、血清肌酐(Scr)、血清尿素氮(BUN)、肾小球滤过率(eGFR)、中医证候积分、尿足细胞数目及血清isthmin-1水平进行比较。结果:治疗组总有效率明显高于对照组(P<0.05),两组患者经治疗后,治疗组患者的24 h UTP、尿ACR、血清肌酐、血清尿素氮及中医证候积分均较对照组明显降低(P<0.01),eGFR明显升高(P<0.01)。与对照组相比,治疗组患者治疗后的尿足细胞数目及血清isthmin-1水平明显降低(P<0.01)。结论:保肾通络方可以降低DKD患者蛋白尿、保护肾功能,同时可以降低血清isthmin-1水平及减少尿足细胞数目。
