This article we mainly analyse the source codes of the linux,we can modify the proper file that related to the architect,wealso use the cross-compile tools arm-linux-gcc and we eventually port to the processor. S3C241...This article we mainly analyse the source codes of the linux,we can modify the proper file that related to the architect,wealso use the cross-compile tools arm-linux-gcc and we eventually port to the processor. S3C2410,this article’s method is easy and it is suitable for practical applications.展开更多
Established in 2019,the Shandong Port Group(SPG)comprises four port groups(Qingdao Port,Rizhao Port,Yantai Port,and Bohaiwan Port)and 12 business segments.SPG connects 3,345 kilometers of coastline within Shandong Pro...Established in 2019,the Shandong Port Group(SPG)comprises four port groups(Qingdao Port,Rizhao Port,Yantai Port,and Bohaiwan Port)and 12 business segments.SPG connects 3,345 kilometers of coastline within Shandong Province.Its cargo throughput has consistently ranked first globally for many years,and its container volume growth ranks second globally,forming a port cluster covering the entire industrial chain.展开更多
Shandong Port Group(SPG),which was established in August 2019,regards standardization as the cornerstone of modern enterprise management,and vigorously implements the standardization innovation strategy.Its standardiz...Shandong Port Group(SPG),which was established in August 2019,regards standardization as the cornerstone of modern enterprise management,and vigorously implements the standardization innovation strategy.Its standardization work mainly focuses on the following four aspects.展开更多
The final and award ceremony of the International Standardization Youth Star Competition 2025 were held in Qingdao on November 22-23.The competition attracted 236 teams nationwide who demonstrated great enthusiasm for...The final and award ceremony of the International Standardization Youth Star Competition 2025 were held in Qingdao on November 22-23.The competition attracted 236 teams nationwide who demonstrated great enthusiasm for participating in the standardization undertaking.The competition followed the mode of“the industry puts forward questions,and the academia provides solutions”.Shandong Port Group Co.,Ltd.,Contemporary Amperex Technology Co.,Ltd.(CATL),Huawei Technologies Co.,Ltd.,and Beijing Zhongbiaolvjian Engineering Design and Research Institute Co.,Ltd.set up themed tracks respectively,and competitors developed standard proposals for the corresponding themes.展开更多
With the launch of an island-wide free trade port featuring special customs operations for tradle liberalization and investment facilitation,China is eyeing developing the province into a pivotal gateway that links it...With the launch of an island-wide free trade port featuring special customs operations for tradle liberalization and investment facilitation,China is eyeing developing the province into a pivotal gateway that links it to the global economy through deeper opening-up and institutional innovation.展开更多
This study investigates the integration of geo-logistics as a strategic framework for enhancing sustainability within Small and Medium-sized Ports(SMPs)in Thailand,focusing on improving environmental,innovation and ec...This study investigates the integration of geo-logistics as a strategic framework for enhancing sustainability within Small and Medium-sized Ports(SMPs)in Thailand,focusing on improving environmental,innovation and economic performance.The geo-logistics framework in this study considers the spatial aspects of logistics activities around the port areas to achieve sustainability goals.This research employs a mixedmethods approach statistical analysis(ANOVA),combined with semi-structured interviews and an intensive literature review to assess both internal and external management criteria across three key regional ports—Songkhla,Map Ta Phut,and Ranong.Findings reveal significant variations of internal factors to assess digitalization,waste management,green procurement,and energy-efficient operations.Beside that externally explores ecosystem protection,stakeholder collaboration,and regulatory compliance.The results showed that Map Ta Phut port demonstrated the most comprehensive sustainability initiatives within its geo-logistics framework,while Songkhla port and Ranong port showed moderate progress.These variations highlight the differing levels of preparedness and commitment to sustainability across the selected ports.Successful implementation of geo-logistics in this research requires strong governmental support,financial incentives,and capacity building to empower Thai SMPs toward long-term sustainability and enhanced competitiveness in the global maritime sector.Lastly,this framework offers a practical roadmap for transforming regional ports into resilient,green,and smart logistics hubs.展开更多
Machine-learning is a robust technique for understanding pollution characteristics of surface ozone,which are at high levels in urban China.This study introduced an innovative approach combining trend decomposition wi...Machine-learning is a robust technique for understanding pollution characteristics of surface ozone,which are at high levels in urban China.This study introduced an innovative approach combining trend decomposition with Random Forest algorithm to investigate ozone dynamics and formation regimes in a coastal area of China.During the period of 2017–2022,significant inter-annual fluctuations emerged,with peaks in mid-2017 attributed to volatile organic compounds(VOCs),and in late-2019 influenced by air temperature.Multifaceted periodicities(daily,weekly,holiday,and yearly)in ozone were revealed,elucidating substantial influences of daily and yearly components on ozone periodicity.A VOC-sensitive ozone formation regime was identified,characterized by lower VOCs/NO_(x) ratios(average=0.88)and significant positive correlations between ozone and VOCs.This interplay manifested in elevated ozone duringweekends,holidays,and pandemic lockdowns.Key variables influencing ozone across diverse timescaleswere uncovered,with solar radiation and temperature driving daily and yearly ozone variations,respectively.Precursor substances,particularly VOCs,significantly shaped weekly/holiday patterns and long-term trends of ozone.Specifically,acetone,ethane,hexanal,and toluene had a notable impact on the multi-year ozone trend,emphasizing the urgency of VOC regulation.Furthermore,our observations indicated that NO_(x) primarily drived the stochastic variations in ozone,a distinguishing characteristic of regions with heavy traffic.This research provides novel insights into ozone dynamics in coastal urban areas and highlights the importance of integrating statistical and machinelearning methods in atmospheric pollution studies,with implications for targeted mitigation strategies beyond this specific region and pollutant.展开更多
Ports,the core hub of global supply chains,serve as vital links in the economic and trade exchanges among countries.Efficient,safe,green and smart ports are essential for the smooth operation of global trade.Recently,...Ports,the core hub of global supply chains,serve as vital links in the economic and trade exchanges among countries.Efficient,safe,green and smart ports are essential for the smooth operation of global trade.Recently,ISO established ISO/TC 8/SC 27,Ports and terminals,the secretariat of which is held by China.This is a big breakthrough of China’s participation in the international standardization activities in the area of transportation.展开更多
ESG(Environment,Society,Governance)management is being applied in the world’s industries,including ports,to enhance sustainable development.For the port sector,the world’s ports have increasingly adopted policies to...ESG(Environment,Society,Governance)management is being applied in the world’s industries,including ports,to enhance sustainable development.For the port sector,the world’s ports have increasingly adopted policies to drive ESG projects in alignment with sustainable port development goals.This research aims to identify port sustainability indicators and analyze the interrelationship among ESG dimensions related to the port environment,port society,and port governance.Qualitative and quantitative methods are employed to identify port management indicators that affect the operation of cargo ports,utilizing a systematic document analysis tool.A wide range of academic and institutional sources was reviewed to ensure the comprehensive identification of relevant indicators.The finding indicates that twenty-nine port sustainability indicators affect port sustainability management,including the nine indicators of environmental port,the nine indicators of social port,and the eleven indicators of governance port.These critical indicators reflect both global best practices and context-specific needs,and they play a central role in managing the port’s sustainability and guiding control strategies for improving competitiveness and compliance with international standards.Based on these findings,a port sustainability framework was developed as a practical operational tool to evaluate port performance,guide decision-making,and align port operations with Thailand’s national policies and global sustainability standards.This framework also provides a foundation for future empirical validation and offers practical implications for policymakers and port stakeholders.展开更多
With the commissioning of Phase$,the port of Kribi is emerging as an important maritime transport hub in Central Africa With a 715-metre quay and a draught of 16 metres,the Autonomous Port of Kribi(APK)stands as one o...With the commissioning of Phase$,the port of Kribi is emerging as an important maritime transport hub in Central Africa With a 715-metre quay and a draught of 16 metres,the Autonomous Port of Kribi(APK)stands as one of Africa’s most strategically significant deep-water ports.Situated on Cameroon’s Atlantic coast,it o!ers direct access to international shipping lanes and is designed to handle large-capacity vessels that many regional ports cannot accommodate.展开更多
Ghana’s Tema Port marked a historic milestone on 16 January 2024 with the arrival of Maersk Edirne,a 13,676-TEU container vessel-one of the largest of its kind globally-as part of Maersk’s newly launched Far East-We...Ghana’s Tema Port marked a historic milestone on 16 January 2024 with the arrival of Maersk Edirne,a 13,676-TEU container vessel-one of the largest of its kind globally-as part of Maersk’s newly launched Far East-West Africa express service.展开更多
The efficient transportation of goods is vital for the economic growth of communities,making developing and maintaining seaport infrastructure an essential component of the marine transportation system.Given their geo...The efficient transportation of goods is vital for the economic growth of communities,making developing and maintaining seaport infrastructure an essential component of the marine transportation system.Given their geographic locations,ports are consistently at risk from natural hazards,making the resilience of port infrastructure an essential goal.Despite considerable progress in resilience research,there remains a gap in methods tailored explicitly to assessing port resilience,particularly under extreme wind events.Current approaches often do not capture the full complexity of port systems,as they tend to focus on isolated aspects,such as structural resilience.This paper introduces the PORT Resilience Framework,addressing these gaps by evaluating resilience through a comprehensive list of indicators gathered from various legitimate sources.The indicators are then organized under four comprehensive resilience dimensions:Physical Infrastructure,ICT(i.e.,Information and Communication Technology)and Equipment;Organization and Business Management;Resources and Economic Development;and Territory,Environment,and Stakeholders.This classification is summarized under the acronym"PORT."This paper also introduces a method for aggregating resilience indicators by considering their performance before and after a specific hazard,transforming the data into a quantifiable Loss of Resilience index.The approach is applied to a case study,assessing the resilience of a real Terminal against wind action using real data sourced from the port management.The case study analysis revealed that human resources and quay operations were the most critical factors affecting recovery,with insufficient staffing leading to prolonged recovery periods.The study further demonstrated that post-disruption activity surges,captured by different serviceability function methodologies,often created operational bottlenecks,challenging the port's overall recovery.展开更多
BACKGROUND Arm-implanted totally implantable venous access devices(peripherally inserted central catheter port)have become an important vascular access for colorectal cancer chemotherapy,but traditional anatomical lan...BACKGROUND Arm-implanted totally implantable venous access devices(peripherally inserted central catheter port)have become an important vascular access for colorectal cancer chemotherapy,but traditional anatomical landmark positioning techniques have issues with inaccurate positioning and high complication rates.AIM To evaluate the clinical value of image pre-measurement combined with intracavitary electrocardiogram(IC-ECG)positioning technology in arm port implantation for colorectal cancer patients.METHODS A retrospective analysis was conducted on 216 colorectal cancer patients who received arm port implantation in our hospital from January 2024 to December 2024.Patients were divided into an experimental group(image pre-measurement combined with IC-ECG positioning technology,n=103)and a control group(traditional anatomical landmark positioning technique,n=113).Technical success rate,operation time,catheter tip position accuracy,number of intraoperative catheter adjustments,X-ray exposure time,and postoperative complication rates were compared between the two groups.RESULTS The experimental group demonstrated superior outcomes compared to the control group across all key measures.Technical success rate was higher(98.4%vs 92.7%,P<0.05)with significantly reduced operation time(23.6±5.2 minutes vs 31.5±7.8 minutes,P<0.01).Catheter tip positioning accuracy improved substantially(97.6%vs 85.4%,P=0.002)while X-ray exposure time decreased by 71.8%(5.3±2.1 seconds vs 18.7±4.5 seconds,P<0.001).Threemonth complication rates were markedly lower in the experimental group(4.1%vs 14.6%,P=0.008),including significant reductions in catheter-related thrombosis(0.8%vs 4.9%),displacement(1.6%vs 5.7%),and occlusion(1.6%vs 4.1%).Multivariate analysis identified traditional technique as the strongest risk factor(odds ratio=4.27,P<0.001),while the combined IC-ECG approach was protective(odds ratio=0.34 for displacement,P=0.018).Long-term outcomes favored the experimental group with higher chemotherapy completion rates(97.1%vs 88.5%,P=0.014)and longer catheter dwelling time(189.5±45.3 days vs 162.7±53.8 days,P<0.001).CONCLUSION Image pre-measurement combined with intracavitary electrocardiogram positioning technology in arm port implantation for colorectal cancer patients can significantly improve catheter tip positioning accuracy,reduce operation time and X-ray exposure.展开更多
Pre-Authentication and Post-Connection(PAPC)plays a crucial role in realizing the Zero Trust security model by ensuring that access to network resources is granted only after successful authentication.While earlier ap...Pre-Authentication and Post-Connection(PAPC)plays a crucial role in realizing the Zero Trust security model by ensuring that access to network resources is granted only after successful authentication.While earlier approaches such as Port Knocking(PK)and Single Packet Authorization(SPA)introduced pre-authentication concepts,they suffer from limitations including plaintext communication,protocol dependency,reliance on dedicated clients,and inefficiency under modern network conditions.These constraints hinder their applicability in emerging distributed and resource-constrained environments such as AIoT and browser-based systems.To address these challenges,this study proposes a novel port-sequence-based PAPC scheme structured as a modular model comprising a client,server,and ephemeral Key Management System(KMS).The system employs the Advanced Encryption Standard(AES-128)to protect message confidentiality and uses a Hash-Based Message Authentication Code(HMAC-SHA256)to ensure integrity.Authentication messages are securely fragmented and mapped to destination port numbers using a signature-based avoidance algorithm,which prevents collisions with unsafe or reserved port ranges.The server observes incoming port sequences,retrieves the necessary keys from the KMS,reconstructs and verifies the encrypted data,and conditionally updates firewall policies.Unlike SPA,which requires decrypting all incoming payloads and imposes server-side overhead,the proposed system verifies only port-derived fragments,significantly reducing computational burden.Furthermore,it eliminates the need for raw socket access or custom clients,supporting browser-based operation and enabling protocol-independent deployment.Through a functional web-based prototype and emulated testing,the system achieved an F1-score exceeding 95%in detecting unauthorized access while maintaining low resource overhead.Although port sequence generation introduces some client-side cost,it remains lightweight and scalable.By tightly integrating lightweight cryptographic algorithms with a transport-layer communication model,this work presents a conceptually validated architecture that contributes a novel direction for interoperable and scalable Zero Trust enforcement in future network ecosystems.展开更多
BACKGROUND This case report examines the challenges associated with removing a totally implantable venous access port(TIVAP)used for long-term chemotherapy in a patient with breast cancer.Prolonged use of TIVAPs can r...BACKGROUND This case report examines the challenges associated with removing a totally implantable venous access port(TIVAP)used for long-term chemotherapy in a patient with breast cancer.Prolonged use of TIVAPs can result in complications such as catheter kinking,thrombosis,and adhesions between the catheter and surrounding tissues,potentially complicating their removal.CASE SUMMARY A breast cancer patient with bone metastasis presented with difficulty aspirating blood from a TIVAP that had been placed in the right internal jugular vein for 3 years.Initial removal attempts at the Department of Venous Access Center were unsuccessful,likely due to adhesions,necessitating a subsequent successful catheter extraction in a hybrid operating room.Imaging revealed no abnor-malities,and the catheter was removed using a mosquito clamp to detach it from surrounding tissues.CONCLUSION This case highlights the challenges of removing TIVAPs inserted via the internal jugular vein,particularly when the catheter traverses the sternocleidomastoid muscle.Repeated neck movements might lead to significant adhesions around the catheter,complicating its removal.Careful consideration should be given during catheter placement to avoid muscle-related adhesions and facilitate smoother extraction in long-term use.展开更多
This paper explores the application of blockchain in Hainan’s supply chain finance,analyzing its impact on enhancing market transparency,optimizing processes,and addressing challenges like information asymmetry and i...This paper explores the application of blockchain in Hainan’s supply chain finance,analyzing its impact on enhancing market transparency,optimizing processes,and addressing challenges like information asymmetry and inefficient credit transmission.It examines technical and security issues such as scalability and cross-chain interoperability,proposing solutions like layered architectures and privacy computing.The study highlights blockchain’s role in empowering cross-border trade,tropical agriculture,and SME financing,aiming to provide a reference for Hainan Free Trade Port’s financial digital transformation.展开更多
As an important strategic fulcrum for China’s new round of opening-up,the Hainan Free Trade Port provides broad space for achieving high-quality development with its unique policy advantages and financial resources.I...As an important strategic fulcrum for China’s new round of opening-up,the Hainan Free Trade Port provides broad space for achieving high-quality development with its unique policy advantages and financial resources.In this context,integrating blockchain technology into the construction of the free trade port can not only help enhance the innovation and competitiveness of the talent cultivation system but also promote the coordinated development of the real economy and the industrial system.Based on the core characteristics of blockchain technology,such as“decentralization,traceability,and high credibility”,this paper focuses on the common problems in the cultivation of composite talents in current vocational colleges,including an imperfect school-enterprise cooperation guarantee mechanism,a lack of teaching resources,weak teaching staff,and insufficient practical conditions.It proposes a new idea of introducing blockchain technology into the vocational education system.Through the research on the cultivation model of composite-skilled talents in vocational colleges in the context of“blockchain+”,this paper aims to promote the in-depth integration of vocational education in vertical and horizontal aspects,and further promote the systematic,standardized,and high-quality development of composite talent cultivation.展开更多
文摘This article we mainly analyse the source codes of the linux,we can modify the proper file that related to the architect,wealso use the cross-compile tools arm-linux-gcc and we eventually port to the processor. S3C2410,this article’s method is easy and it is suitable for practical applications.
文摘Established in 2019,the Shandong Port Group(SPG)comprises four port groups(Qingdao Port,Rizhao Port,Yantai Port,and Bohaiwan Port)and 12 business segments.SPG connects 3,345 kilometers of coastline within Shandong Province.Its cargo throughput has consistently ranked first globally for many years,and its container volume growth ranks second globally,forming a port cluster covering the entire industrial chain.
文摘Shandong Port Group(SPG),which was established in August 2019,regards standardization as the cornerstone of modern enterprise management,and vigorously implements the standardization innovation strategy.Its standardization work mainly focuses on the following four aspects.
文摘The final and award ceremony of the International Standardization Youth Star Competition 2025 were held in Qingdao on November 22-23.The competition attracted 236 teams nationwide who demonstrated great enthusiasm for participating in the standardization undertaking.The competition followed the mode of“the industry puts forward questions,and the academia provides solutions”.Shandong Port Group Co.,Ltd.,Contemporary Amperex Technology Co.,Ltd.(CATL),Huawei Technologies Co.,Ltd.,and Beijing Zhongbiaolvjian Engineering Design and Research Institute Co.,Ltd.set up themed tracks respectively,and competitors developed standard proposals for the corresponding themes.
文摘With the launch of an island-wide free trade port featuring special customs operations for tradle liberalization and investment facilitation,China is eyeing developing the province into a pivotal gateway that links it to the global economy through deeper opening-up and institutional innovation.
基金funded by faculty of International Maritime Studies,Kasetsart University.
文摘This study investigates the integration of geo-logistics as a strategic framework for enhancing sustainability within Small and Medium-sized Ports(SMPs)in Thailand,focusing on improving environmental,innovation and economic performance.The geo-logistics framework in this study considers the spatial aspects of logistics activities around the port areas to achieve sustainability goals.This research employs a mixedmethods approach statistical analysis(ANOVA),combined with semi-structured interviews and an intensive literature review to assess both internal and external management criteria across three key regional ports—Songkhla,Map Ta Phut,and Ranong.Findings reveal significant variations of internal factors to assess digitalization,waste management,green procurement,and energy-efficient operations.Beside that externally explores ecosystem protection,stakeholder collaboration,and regulatory compliance.The results showed that Map Ta Phut port demonstrated the most comprehensive sustainability initiatives within its geo-logistics framework,while Songkhla port and Ranong port showed moderate progress.These variations highlight the differing levels of preparedness and commitment to sustainability across the selected ports.Successful implementation of geo-logistics in this research requires strong governmental support,financial incentives,and capacity building to empower Thai SMPs toward long-term sustainability and enhanced competitiveness in the global maritime sector.Lastly,this framework offers a practical roadmap for transforming regional ports into resilient,green,and smart logistics hubs.
基金supported by Ningbo Natural Science Foundation(No.2023J059)Ningbo Commonweal Programme Key Project(No.2023S038)Guangxi Key Research and Development Programme(No.GuikeAB21220063).
文摘Machine-learning is a robust technique for understanding pollution characteristics of surface ozone,which are at high levels in urban China.This study introduced an innovative approach combining trend decomposition with Random Forest algorithm to investigate ozone dynamics and formation regimes in a coastal area of China.During the period of 2017–2022,significant inter-annual fluctuations emerged,with peaks in mid-2017 attributed to volatile organic compounds(VOCs),and in late-2019 influenced by air temperature.Multifaceted periodicities(daily,weekly,holiday,and yearly)in ozone were revealed,elucidating substantial influences of daily and yearly components on ozone periodicity.A VOC-sensitive ozone formation regime was identified,characterized by lower VOCs/NO_(x) ratios(average=0.88)and significant positive correlations between ozone and VOCs.This interplay manifested in elevated ozone duringweekends,holidays,and pandemic lockdowns.Key variables influencing ozone across diverse timescaleswere uncovered,with solar radiation and temperature driving daily and yearly ozone variations,respectively.Precursor substances,particularly VOCs,significantly shaped weekly/holiday patterns and long-term trends of ozone.Specifically,acetone,ethane,hexanal,and toluene had a notable impact on the multi-year ozone trend,emphasizing the urgency of VOC regulation.Furthermore,our observations indicated that NO_(x) primarily drived the stochastic variations in ozone,a distinguishing characteristic of regions with heavy traffic.This research provides novel insights into ozone dynamics in coastal urban areas and highlights the importance of integrating statistical and machinelearning methods in atmospheric pollution studies,with implications for targeted mitigation strategies beyond this specific region and pollutant.
文摘Ports,the core hub of global supply chains,serve as vital links in the economic and trade exchanges among countries.Efficient,safe,green and smart ports are essential for the smooth operation of global trade.Recently,ISO established ISO/TC 8/SC 27,Ports and terminals,the secretariat of which is held by China.This is a big breakthrough of China’s participation in the international standardization activities in the area of transportation.
文摘ESG(Environment,Society,Governance)management is being applied in the world’s industries,including ports,to enhance sustainable development.For the port sector,the world’s ports have increasingly adopted policies to drive ESG projects in alignment with sustainable port development goals.This research aims to identify port sustainability indicators and analyze the interrelationship among ESG dimensions related to the port environment,port society,and port governance.Qualitative and quantitative methods are employed to identify port management indicators that affect the operation of cargo ports,utilizing a systematic document analysis tool.A wide range of academic and institutional sources was reviewed to ensure the comprehensive identification of relevant indicators.The finding indicates that twenty-nine port sustainability indicators affect port sustainability management,including the nine indicators of environmental port,the nine indicators of social port,and the eleven indicators of governance port.These critical indicators reflect both global best practices and context-specific needs,and they play a central role in managing the port’s sustainability and guiding control strategies for improving competitiveness and compliance with international standards.Based on these findings,a port sustainability framework was developed as a practical operational tool to evaluate port performance,guide decision-making,and align port operations with Thailand’s national policies and global sustainability standards.This framework also provides a foundation for future empirical validation and offers practical implications for policymakers and port stakeholders.
文摘With the commissioning of Phase$,the port of Kribi is emerging as an important maritime transport hub in Central Africa With a 715-metre quay and a draught of 16 metres,the Autonomous Port of Kribi(APK)stands as one of Africa’s most strategically significant deep-water ports.Situated on Cameroon’s Atlantic coast,it o!ers direct access to international shipping lanes and is designed to handle large-capacity vessels that many regional ports cannot accommodate.
文摘Ghana’s Tema Port marked a historic milestone on 16 January 2024 with the arrival of Maersk Edirne,a 13,676-TEU container vessel-one of the largest of its kind globally-as part of Maersk’s newly launched Far East-West Africa express service.
文摘The efficient transportation of goods is vital for the economic growth of communities,making developing and maintaining seaport infrastructure an essential component of the marine transportation system.Given their geographic locations,ports are consistently at risk from natural hazards,making the resilience of port infrastructure an essential goal.Despite considerable progress in resilience research,there remains a gap in methods tailored explicitly to assessing port resilience,particularly under extreme wind events.Current approaches often do not capture the full complexity of port systems,as they tend to focus on isolated aspects,such as structural resilience.This paper introduces the PORT Resilience Framework,addressing these gaps by evaluating resilience through a comprehensive list of indicators gathered from various legitimate sources.The indicators are then organized under four comprehensive resilience dimensions:Physical Infrastructure,ICT(i.e.,Information and Communication Technology)and Equipment;Organization and Business Management;Resources and Economic Development;and Territory,Environment,and Stakeholders.This classification is summarized under the acronym"PORT."This paper also introduces a method for aggregating resilience indicators by considering their performance before and after a specific hazard,transforming the data into a quantifiable Loss of Resilience index.The approach is applied to a case study,assessing the resilience of a real Terminal against wind action using real data sourced from the port management.The case study analysis revealed that human resources and quay operations were the most critical factors affecting recovery,with insufficient staffing leading to prolonged recovery periods.The study further demonstrated that post-disruption activity surges,captured by different serviceability function methodologies,often created operational bottlenecks,challenging the port's overall recovery.
基金Supported by the Affiliated Hospital of Xuzhou Medical University,No.2024ZH04Xuzhou Municipal Science and Technology Bureau,No.KC23282.
文摘BACKGROUND Arm-implanted totally implantable venous access devices(peripherally inserted central catheter port)have become an important vascular access for colorectal cancer chemotherapy,but traditional anatomical landmark positioning techniques have issues with inaccurate positioning and high complication rates.AIM To evaluate the clinical value of image pre-measurement combined with intracavitary electrocardiogram(IC-ECG)positioning technology in arm port implantation for colorectal cancer patients.METHODS A retrospective analysis was conducted on 216 colorectal cancer patients who received arm port implantation in our hospital from January 2024 to December 2024.Patients were divided into an experimental group(image pre-measurement combined with IC-ECG positioning technology,n=103)and a control group(traditional anatomical landmark positioning technique,n=113).Technical success rate,operation time,catheter tip position accuracy,number of intraoperative catheter adjustments,X-ray exposure time,and postoperative complication rates were compared between the two groups.RESULTS The experimental group demonstrated superior outcomes compared to the control group across all key measures.Technical success rate was higher(98.4%vs 92.7%,P<0.05)with significantly reduced operation time(23.6±5.2 minutes vs 31.5±7.8 minutes,P<0.01).Catheter tip positioning accuracy improved substantially(97.6%vs 85.4%,P=0.002)while X-ray exposure time decreased by 71.8%(5.3±2.1 seconds vs 18.7±4.5 seconds,P<0.001).Threemonth complication rates were markedly lower in the experimental group(4.1%vs 14.6%,P=0.008),including significant reductions in catheter-related thrombosis(0.8%vs 4.9%),displacement(1.6%vs 5.7%),and occlusion(1.6%vs 4.1%).Multivariate analysis identified traditional technique as the strongest risk factor(odds ratio=4.27,P<0.001),while the combined IC-ECG approach was protective(odds ratio=0.34 for displacement,P=0.018).Long-term outcomes favored the experimental group with higher chemotherapy completion rates(97.1%vs 88.5%,P=0.014)and longer catheter dwelling time(189.5±45.3 days vs 162.7±53.8 days,P<0.001).CONCLUSION Image pre-measurement combined with intracavitary electrocardiogram positioning technology in arm port implantation for colorectal cancer patients can significantly improve catheter tip positioning accuracy,reduce operation time and X-ray exposure.
基金supported by Institute for Information&Communications Technology Planning&Evaluation(IITP)grant funded by the Korea government(MSIT)(No.RS-2022-II221200)Convergence Security Core Talent Training Business(Chungnam National University).
文摘Pre-Authentication and Post-Connection(PAPC)plays a crucial role in realizing the Zero Trust security model by ensuring that access to network resources is granted only after successful authentication.While earlier approaches such as Port Knocking(PK)and Single Packet Authorization(SPA)introduced pre-authentication concepts,they suffer from limitations including plaintext communication,protocol dependency,reliance on dedicated clients,and inefficiency under modern network conditions.These constraints hinder their applicability in emerging distributed and resource-constrained environments such as AIoT and browser-based systems.To address these challenges,this study proposes a novel port-sequence-based PAPC scheme structured as a modular model comprising a client,server,and ephemeral Key Management System(KMS).The system employs the Advanced Encryption Standard(AES-128)to protect message confidentiality and uses a Hash-Based Message Authentication Code(HMAC-SHA256)to ensure integrity.Authentication messages are securely fragmented and mapped to destination port numbers using a signature-based avoidance algorithm,which prevents collisions with unsafe or reserved port ranges.The server observes incoming port sequences,retrieves the necessary keys from the KMS,reconstructs and verifies the encrypted data,and conditionally updates firewall policies.Unlike SPA,which requires decrypting all incoming payloads and imposes server-side overhead,the proposed system verifies only port-derived fragments,significantly reducing computational burden.Furthermore,it eliminates the need for raw socket access or custom clients,supporting browser-based operation and enabling protocol-independent deployment.Through a functional web-based prototype and emulated testing,the system achieved an F1-score exceeding 95%in detecting unauthorized access while maintaining low resource overhead.Although port sequence generation introduces some client-side cost,it remains lightweight and scalable.By tightly integrating lightweight cryptographic algorithms with a transport-layer communication model,this work presents a conceptually validated architecture that contributes a novel direction for interoperable and scalable Zero Trust enforcement in future network ecosystems.
基金Supported by the Science and Technology Research Project of Jiangxi Provincial Education Department,No.GJJ2208202Science and Technology Program Project of Health Commission of Jiangxi Province,No.202510069+1 种基金Jiangxi Cancer Hospital Doctoral Start-up Fund,No.BSQDJ202309Jiangxi Province Gan Po Talent Support Program,No.20232BCJ23035.
文摘BACKGROUND This case report examines the challenges associated with removing a totally implantable venous access port(TIVAP)used for long-term chemotherapy in a patient with breast cancer.Prolonged use of TIVAPs can result in complications such as catheter kinking,thrombosis,and adhesions between the catheter and surrounding tissues,potentially complicating their removal.CASE SUMMARY A breast cancer patient with bone metastasis presented with difficulty aspirating blood from a TIVAP that had been placed in the right internal jugular vein for 3 years.Initial removal attempts at the Department of Venous Access Center were unsuccessful,likely due to adhesions,necessitating a subsequent successful catheter extraction in a hybrid operating room.Imaging revealed no abnor-malities,and the catheter was removed using a mosquito clamp to detach it from surrounding tissues.CONCLUSION This case highlights the challenges of removing TIVAPs inserted via the internal jugular vein,particularly when the catheter traverses the sternocleidomastoid muscle.Repeated neck movements might lead to significant adhesions around the catheter,complicating its removal.Careful consideration should be given during catheter placement to avoid muscle-related adhesions and facilitate smoother extraction in long-term use.
基金2024 Hainan Provincial Higher Education Institutions Scientific Research Self-Funded Project“Research on‘Blockchain+Supply Chain Finance’and Financing of Small and Medium-sized Enterprises in Hainan Free Trade Harbor”(Hnky2024ZC-23)。
文摘This paper explores the application of blockchain in Hainan’s supply chain finance,analyzing its impact on enhancing market transparency,optimizing processes,and addressing challenges like information asymmetry and inefficient credit transmission.It examines technical and security issues such as scalability and cross-chain interoperability,proposing solutions like layered architectures and privacy computing.The study highlights blockchain’s role in empowering cross-border trade,tropical agriculture,and SME financing,aiming to provide a reference for Hainan Free Trade Port’s financial digital transformation.
基金Exploration and Practice of the Application of Blockchain Technology in the Cultivation of Composite Talents in the Context of the Free Trade Port(Project No.:HKJG2023-18)。
文摘As an important strategic fulcrum for China’s new round of opening-up,the Hainan Free Trade Port provides broad space for achieving high-quality development with its unique policy advantages and financial resources.In this context,integrating blockchain technology into the construction of the free trade port can not only help enhance the innovation and competitiveness of the talent cultivation system but also promote the coordinated development of the real economy and the industrial system.Based on the core characteristics of blockchain technology,such as“decentralization,traceability,and high credibility”,this paper focuses on the common problems in the cultivation of composite talents in current vocational colleges,including an imperfect school-enterprise cooperation guarantee mechanism,a lack of teaching resources,weak teaching staff,and insufficient practical conditions.It proposes a new idea of introducing blockchain technology into the vocational education system.Through the research on the cultivation model of composite-skilled talents in vocational colleges in the context of“blockchain+”,this paper aims to promote the in-depth integration of vocational education in vertical and horizontal aspects,and further promote the systematic,standardized,and high-quality development of composite talent cultivation.
