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台风灾害下考虑源-网-荷协同优化的SCUC复合决策方法
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作者 杨楠 产雪振 +5 位作者 张志 许丹 郝俊聪 王金鑫 黄悦华 张磊 《电力系统保护与控制》 北大核心 2025年第10期33-44,共12页
随着全球气候变化导致台风灾害事件频发,电力设备的故障率大幅上升,严重威胁到电网的安全可靠运行。为提高电力系统韧性,提出一种台风灾害下考虑源-网-荷协同优化的安全约束机组组合(security-constrainedunit commitment,SCUC)复合决... 随着全球气候变化导致台风灾害事件频发,电力设备的故障率大幅上升,严重威胁到电网的安全可靠运行。为提高电力系统韧性,提出一种台风灾害下考虑源-网-荷协同优化的安全约束机组组合(security-constrainedunit commitment,SCUC)复合决策方法。首先,结合台风历史数据以及Rankine风场模型,构建风机出力以及线路故障模型。在此基础上基于状态抽样法构建待决策故障场景不确定集。然后分别构建SCUC、减载和线路恢复不同应对策略的决策模型。同时采用鲁棒优化处理线路故障的不确定性,并将其作为虚拟主体“台风灾害”引入由上述各决策模型作为博弈主体所构建的多主体博弈模型。最后结合迭代搜索法进行求解。仿真结果验证了所提方法能够在保证系统运行经济性的同时最大限度地减少负荷损失,提升电力系统在台风灾害下的韧性水平。 展开更多
关键词 scuc 韧性提升 鲁棒优化 多主体博弈
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The Impact of Exercise Commitment on Flourishing via Psychological Capital(PsyCap):A Second-Order PLS-SEM Approach
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作者 Jinwoong Choi Young-lae Choi Kyuhyun Choi 《International Journal of Mental Health Promotion》 2025年第10期1515-1532,共18页
Objectives:For the younger generation(i.e.,Millennials and Generation Z),running is not only about physical health,but also about building psychological resources and multidimensional well-being,reflecting their uniqu... Objectives:For the younger generation(i.e.,Millennials and Generation Z),running is not only about physical health,but also about building psychological resources and multidimensional well-being,reflecting their unique culture and lifestyle.This study aims to investigate the structural relationships among exercise commitment,psychological capital(PsyCap),and flourishing in younger adults in South Korea by integrating Social Cognitive Theory(SCT)and Broaden-and-Build Theory(BBT)using a second-order partial least squares structural equation modeling(PLS-SEM).Methods:A total of 166 participants were recruited through convenience sampling via online survey.They were young South Korean adults(born 1983–2005)who run at least once a week and were recruited through two universities and running communities.The survey included validated scales measuring exercise commitment(cognitive and behavioral),PsyCap(hope,efficacy,resilience,and optimism),and flourishing(emotional,psychological,and social well-being).Data were analyzed using PLS-SEM with 5000 bootstrap resamples in SmartPLS 4.1.1.2.Subsequently,mea-surement and structural models were assessed through confirmatory composite analysis(CCA),and common method variance(CMV)was checked using Harman’s single-factor test.Results:Exercise commitment significantly predicted PsyCap(β=0.171,p<0.05)and PsyCap significantly predicted flourishing(β=0.444,p<0.001).Mediation analysis confirmed that PsyCap fully mediated the relationship between exercise commitment and flourishing(β=0.071,p<0.05).Although the indirect effect may appear numerically small,it translated to a 7.1%increase in flourishing scores—a practically meaningful effect in social science contexts where even modest changes yield real-world impact.The findings empirically support the integration of two frameworks,highlighting both motivational(SCT)and affective(BBT)pathways through which exercise fosters multidimensional well-being.Conclusions:Theoretically,this study advances understanding of how cognitive and behavioral commitment contribute to the development of psychological resources that collectively drive flourishing.Practically,the results suggest that running programs targeting younger adults should focus on fostering PsyCap—via goal setting,social support,and digital engagement—to maximize well-being outcomes.Moreover,the findings have the potential to inform mental health promotion strategies beyond the Korean context.This study has several limitations,including a skewed sample resulting from convenience sampling,the lack of comparative analysis across different age cohorts,and the use of second-order constructs that may obscure dimension-specific effects.Future research should address these limitations by employing stratified sampling,adopting comparative study designs,and conducting model comparisons between first-and second-order constructs to elucidate both overarching and dimension-specific pathways. 展开更多
关键词 Physical activity impacts exercise commitment psychological capital FLOURISHING
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Workplace spirituality and mindfulness in professional female dancers:The mediating role of mental well-being in organizational Commitment
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作者 Kang-won Bae Joon-ho Kim Ja-young Sul 《Journal of Psychology in Africa》 2025年第4期451-461,共11页
This study examined the relationships among workplace spirituality,mindfulness,mental well-being,and organizational commitment in professional female dancers.A total of 424 dancers from the United States participated ... This study examined the relationships among workplace spirituality,mindfulness,mental well-being,and organizational commitment in professional female dancers.A total of 424 dancers from the United States participated in the survey.Structural equation modeling indicated that workplace spirituality was positively associated with both mental well-being and organizational commitment,whereas mindfulness was significantly related only to organizational commitment.Mental well-being was a significant predictor of organizational commitment and mediated the relationship between workplace spirituality and organizational commitment,but not between mindfulness and commitment.These results suggest that workplace spirituality functions as a psychological resource that enhances emotional health and strengthens organizational engagement.Thesefindings are consistent with self-determination theory,highlighting the role of value congruence and intrinsic purpose in sustaining motivation in high-performance contexts.Moreover,the studyfindings underscore the importance of fostering spiritually supportive work environments to promote psychological well-being and long-term organizational commitment. 展开更多
关键词 workplace spirituality MINDFULNESS mental well-being organizational commitment professional dancers
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Twenty Years of Commitment Forge Success,Setting a Benchmark for Safe Development--Celebrating the 20th Anniversary of LTI-Free Safety Operations by Crew 8622 of the BGP Oman Project Department,International Division
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作者 Yang Tao Dong Gong 《China Oil & Gas》 2025年第3期75-78,共4页
Strategic initiative:Entering Oman for a new strategy In 2004,the International Department of CNPC’s BGP took a crucial step in the Middle East market by successfully securing a seismic exploration project for the na... Strategic initiative:Entering Oman for a new strategy In 2004,the International Department of CNPC’s BGP took a crucial step in the Middle East market by successfully securing a seismic exploration project for the national oil company of Oman,Petroleum Development Oman(PDO). 展开更多
关键词 ANNIVERSARY seismic exploration development commitment safety market entry strategy seismic exploration project
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Strength-constrained unit commitment in IBR dominant power systems
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作者 Yong-Kyu Kim Sang-Ho Lee Gyu-Sub Lee 《iEnergy》 2025年第2期121-131,共11页
In this paper,a strength-constrained unit commitment(UC)model incorporating system strength constraints based on the weighted short-circuit ratio(WSCR)is proposed.This model facilitates the comprehensive assessment of... In this paper,a strength-constrained unit commitment(UC)model incorporating system strength constraints based on the weighted short-circuit ratio(WSCR)is proposed.This model facilitates the comprehensive assessment of area-wide system strength in power systems with high inverter-based resource(IBR)penetration,thereby contributing to the mitigation of weak grid issues.Unlike traditional models,this approach considers the interactions among multiple IBRs.The UC problem is initially formulated as a mixed-integer nonlinear programming(MINLP)model,reflecting WSCR and bus impedance matrix modification constraints.To enhance computational tractability,the model is transformed into a mixed-integer linear programming(MILP)form.The effectiveness of the proposed approach is validated through simulations on the IEEE 5-bus,IEEE 39-bus,and a modified Korean power system,demonstrating the ability of the proposed UC model enhancing system strength compared to the conventional methodologies. 展开更多
关键词 Unit commitment system strength inverter-based resource power system stability mixed-integer programming
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Effects of Internet-Based Acceptance and Commitment Therapy on College Students’Mental Health: A Randomized Controlled Trial
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作者 Jing Wang Shuanghu Fang +1 位作者 Zihua Li Shaoyong Ma 《International Journal of Mental Health Promotion》 2025年第6期845-861,共17页
Objectives:College students face increasing mental health challenges.Although Acceptance and CommitmentTherapy(ACT)is effective,the efficacy of Internet-based ACT(iACT)needs further exploration.Methods:This study exam... Objectives:College students face increasing mental health challenges.Although Acceptance and CommitmentTherapy(ACT)is effective,the efficacy of Internet-based ACT(iACT)needs further exploration.Methods:This study examines the efficacy of iACT on college students’mental health through a randomized controlled trial.We recruited 90 college students(19.16±1.02 years old)and randomly divided them into the iACT group,face-to-face ACT group,and control group.The effects of the interventions were evaluated using the comprehensive assessment of ACT processes(CompACT)and the Depression Anxiety Stress Scales(DASS-21).Results:Two-factor repeated measures ANOVA revealed a significant time main effect of iACT.Face-to-face ACT and iACT effectively improved college students’psychological flexibility[F(2,83)=18.78,p<0.001,η^(2)=0.18]and alleviated their negative emotions[F(2,82)=41.17,p<0.001,η^(2)=0.36].Face-to-face ACT exhibited sustained effects on improving participants’psychological flexibility and alleviating their negative emotions(p<0.001),while iACT showed no sustained effect on improving participants’psychological flexibility(p>0.05).Conclusion:While iACT and face-to-face ACT are effective shortterm interventions,face-to-face ACT demonstrates superior sustainability.Integrating guided sessions into iACT may enhance long-term outcomes.These findings advocate for blended interventions to address college students’mental health needs,particularly in resource-limited settings. 展开更多
关键词 Internet-based acceptance and commitment therapy mental health college students randomized controlled trial
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Exact quantum algorithm for unit commitment optimization based on partially connected quantum neural networks
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作者 Jian Liu Xu Zhou +1 位作者 Zhuojun Zhou Le Luo 《Chinese Physics B》 2025年第10期303-312,共10页
The quantum hybrid algorithm has recently become a very promising and speedy method for solving larger-scale optimization problems in the noisy intermediate-scale quantum(NISQ)era.The unit commitment(UC)problem is a f... The quantum hybrid algorithm has recently become a very promising and speedy method for solving larger-scale optimization problems in the noisy intermediate-scale quantum(NISQ)era.The unit commitment(UC)problem is a fundamental problem in the field of power systems that aims to satisfy the power balance constraint with minimal cost.In this paper,we focus on the implementation of the UC solution using exact quantum algorithms based on the quantum neural network(QNN).This method is tested with a ten-unit system under the power balance constraint.In order to improve computing precision and reduce network complexity,we propose a knowledge-based partially connected quantum neural network(PCQNN).The results show that exact solutions can be obtained by the improved algorithm and that the depth of the quantum circuit can be reduced simultaneously. 展开更多
关键词 quantum computing quantum algorithm unit commitment quantum neural network noisy intermediate-scale quantum era
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Problem-structure-informed quantum approximate optimization for large-scale unit commitment with limited qubits
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作者 Jingxian Zhou Ziqing Zhu +1 位作者 Linghua Zhu Siqi Bu 《iEnergy》 2025年第4期215-218,共4页
As power systems expand,solving the unit commitment problem(UCP)becomes increasingly challenging due to the curse of dimensionality,and traditional methods often struggle to balance computational efficiency and soluti... As power systems expand,solving the unit commitment problem(UCP)becomes increasingly challenging due to the curse of dimensionality,and traditional methods often struggle to balance computational efficiency and solution optimality.To tackle this issue,we propose a problem-structure-informed quantum approximate optimization algorithm(QAOA)framework that fully exploits the quantum advantage under extremely limited quantum resources.Specifically,we leverage the inherent topological structure of power systems to decompose large-scale UCP instances into smaller subproblems,which are solvable in parallel by limited number of qubits.This decomposition not only circumvents the current hardware limitations of quantum computing but also achieves higher performance as the graph structure of the power system becomes more sparse.Consequently,our approach can be extended to future power systems that are larger and more complex. 展开更多
关键词 Unit commitment problem quadratic unconstrained binary optimization quantum approximate optimization algorithm
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Acceptance and commitment therapy for enhancing mental health in military personnel:A comprehensive review and meta-analysis
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作者 Jun-Qiao Wang Xin-Zhe Wang Wen-Xiao Wang 《World Journal of Psychiatry》 2025年第3期319-336,共18页
BACKGROUND Military personnel frequently face unique psychological challenges due to highstress environments,which increase the risk of mental health issues like anxiety and depression.Acceptance and commitment therap... BACKGROUND Military personnel frequently face unique psychological challenges due to highstress environments,which increase the risk of mental health issues like anxiety and depression.Acceptance and commitment therapy(ACT)has shown potential in addressing these issues by enhancing psychological flexibility and resilience.AIM To systematically evaluate the effectiveness of ACT in improving the mental health of military personnel.Through a scoping review and meta-analysis,we quantitatively assess the impact of ACT on psychological outcomes,guiding future research and clinical practice.METHODS Relevant literature was searched systematically from database inception to June 30,2023,across multiple databases,including PubMed,Web of Science,Cochrane Library,and Embase.The Joanna Briggs Institute's(JBI)scoping review guidelines were used as the methodological framework.Meta-analysis was performed using a random-effects model,and publication bias was assessed through Egger's regression test and Begg's funnel plot.RESULTS Twenty-six studies were included,highlighting the application of ACT in addressing PTSD,chronic pain,anxiety,and depression among military personnel.The meta-analysis of eight studies demonstrated a significant positive effect of ACT on mental health,with a pooled mean difference of-4.99(95%CI:-6.53 to-3.45).Despite high heterogeneity(I^(2)=63%),sensitivity analyses confirmed the robustness of the findings.CONCLUSION This study underscores the potential of ACT as an effective intervention for improving the mental health of military personnel.Future research should focus on large-scale,multi-center RCTs to further validate these findings,particularly within diverse military populations. 展开更多
关键词 Acceptance and commitment therapy Military health META-ANALYSIS Psychological therapy Post traumatic stress disorder management
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Acceptance and commitment therapy applied to early psychosis:Therapeutic foundations and a narrative systematic review
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作者 Josep Pena-Garijo Tábata Baeza-Mor José Martinez-Raga 《World Journal of Psychiatry》 2025年第8期384-403,共20页
BACKGROUND Acceptance and commitment therapy(ACT)is a third-generation therapy that appears to be a promising psychological intervention for psychotic disorders.While several systematic reviews and meta-analyses that ... BACKGROUND Acceptance and commitment therapy(ACT)is a third-generation therapy that appears to be a promising psychological intervention for psychotic disorders.While several systematic reviews and meta-analyses that address the efficacy of ACT for psychosis have been conducted,no systematic review has specifically focused on the application of ACT to the early stages of psychosis.AIM To review the state of the art regarding the feasibility and efficacy of treating early psychosis(EP)with ACT-based interventions.METHODS First,we describe the foundations of the ACT model to provide the background required to contextualize the main objective of this review.Second,we searched the PubMed and PsycINFO databases for studies published up to January 2025 and identified eight studies that met our selection criteria.The systematic review was conducted in accordance with the PRISMA guidelines and the critical appraisal checklist provided by the Joanna Briggs Institute for randomized controlled trials(RCTs).RESULTS All studies were published after 2019.Among the reviewed studies,five were RCTs with a total combined sample of 399 nonoverlapping participants.The methodological quality was moderate for RCTs.The results showed that ACTbased treatments are feasible and improve psychotic symptoms,medication adherence,and global functioning in patients with EP.Furthermore,preliminary evidence exists for the benefits of group-based and online-delivered programs and those that combine face-to-face therapy with novel real-time digital interventions,such as“ecological momentary intervention”,to apply therapeutic con cepts to real life.CONCLUSION ACT-based treatments in the early stages of psychosis are feasible and improve symptoms,treatment adherence,and self-care skills.Although promising,these results are inconclusive.Further research is required. 展开更多
关键词 Acceptance and commitment therapy Acceptance-based therapy Early psychosis First-episode psychosis SCHIZOPHRENIA Ecological momentary intervention Digital intervention Systematic review
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Polynomial Commitment in a Verkle Tree Based on a Non-Positional Polynomial Notation
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作者 Kunbolat T.Algazy Kairat S.Sakan +1 位作者 Saule E.Nyssanbayeva Ardabek Khompysh 《Computers, Materials & Continua》 2025年第7期1581-1595,共15页
This paper examines the application of the Verkle tree—an efficient data structure that leverages commitments and a novel proof technique in cryptographic solutions.Unlike traditional Merkle trees,the Verkle tree sig... This paper examines the application of the Verkle tree—an efficient data structure that leverages commitments and a novel proof technique in cryptographic solutions.Unlike traditional Merkle trees,the Verkle tree significantly reduces signature size by utilizing polynomial and vector commitments.Compact proofs also accelerate the verification process,reducing computational overhead,which makes Verkle trees particularly useful.The study proposes a new approach based on a non-positional polynomial notation(NPN)employing the Chinese Remainder Theorem(CRT).CRT enables efficient data representation and verification by decomposing data into smaller,indepen-dent components,simplifying computations,reducing overhead,and enhancing scalability.This technique facilitates parallel data processing,which is especially advantageous in cryptographic applications such as commitment and proof construction in Verkle trees,as well as in systems with constrained computational resources.Theoretical foundations of the approach,its advantages,and practical implementation aspects are explored,including resistance to potential attacks,application domains,and a comparative analysis with existing methods based on well-known parameters and characteristics.An analysis of potential attacks and vulnerabilities,including greatest common divisor(GCD)attacks,approximate multiple attacks(LLL lattice-based),brute-force search for irreducible polynomials,and the estimation of their total number,indicates that no vulnerabilities have been identified in the proposed method thus far.Furthermore,the study demonstrates that integrating CRT with Verkle trees ensures high scalability,making this approach promising for blockchain systems and other distributed systems requiring compact and efficient proofs. 展开更多
关键词 Verkle tree Verkle tree commitment and proof non-positional polynomial notation(NPN) Chinese remainder theorem
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准联盟:概念界定与案例检验
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作者 宋伟 袁盛锐 《国际安全研究》 北大核心 2026年第1期42-74,158,159,共35页
准联盟是国家间合作的重要形式。准联盟应当被重新定义为两个及两个以上主权国家之间的一种合作关系,其中各方的合作水平与联盟相当,但彼此间没有共同防御或进攻的条约承诺。准联盟性质的合作能够为国家提供灵活的、高水平的支持。准联... 准联盟是国家间合作的重要形式。准联盟应当被重新定义为两个及两个以上主权国家之间的一种合作关系,其中各方的合作水平与联盟相当,但彼此间没有共同防御或进攻的条约承诺。准联盟性质的合作能够为国家提供灵活的、高水平的支持。准联盟的合作水平与联盟相当,主要体现在战略和军事两个方面。战略上,准联盟各方进行全面的政策协调,包括在重大问题上对彼此的支持和关键政策的协调;军事上,准联盟各方开展高水平安全合作,包括共同制定军事战略或计划、开展军售或军事援助以及推动军事一体化。新的定义可以将准联盟与联盟、联合阵线等其他安全合作形式进行明确区分。对两个正面案例(1939年到1941年的美英关系和2023年以来的美以关系),以及与两个反面案例(1936年到1940年的德日关系和1964年到1968年的美沙关系)的比较研究显示,尽管这四个案例都符合准联盟的既有定义,但两组案例的合作水平存在显著差异,只有两个正面案例可以被看作是“准联盟”。这一结论验证了既有定义的不足,也支持了准联盟的新定义。四个案例在性质上的不同影响了其合作效果。这证明了严格界定准联盟的重要性:从实际合作水平界定准联盟更有利于准确认识这一现象的本质。 展开更多
关键词 准联盟 条约承诺 高水平合作 联盟
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基于接纳承诺疗法的疼痛护理对带状疱疹后遗神经痛患者疼痛程度、负性情绪、健康行为、生活质量的影响
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作者 樊燕鸽 毛兴普 +1 位作者 袁艳青 马莉 《海南医学》 2026年第1期123-127,共5页
目的 探讨基于接纳承诺疗法(ACT)的疼痛护理对带状疱疹后遗神经痛(PHN)患者疼痛程度、负性情绪、健康行为、生活质量的影响。方法 前瞻性选取2021年6月至2024年3月郑州大学第二附属医院收治的112例PHN患者作为研究对象,按随机数表法分... 目的 探讨基于接纳承诺疗法(ACT)的疼痛护理对带状疱疹后遗神经痛(PHN)患者疼痛程度、负性情绪、健康行为、生活质量的影响。方法 前瞻性选取2021年6月至2024年3月郑州大学第二附属医院收治的112例PHN患者作为研究对象,按随机数表法分为常规组和ACT组各56例。常规组采取常规护理,ACT组在此基础上采取基于ACT的疼痛护理。干预时间4周。比较两组患者干预前后的疼痛数字评分(NRS)、医院焦虑抑郁量表(HADS)评分、疼痛信念问卷(PBQ)评分、健康促进生活方式量表-Ⅱ(HPLP-Ⅱ)评分和皮肤病生活质量指数(DLQI)评分。结果 干预4周后,ACT组患者的NRS评分、HAS评分、HDS评分分别为(3.31±0.69)分、(6.57±1.02)分、(7.62±1.13)分,明显低于常规组的(5.11±0.73)分、(8.38±1.13)分、(9.27±1.25)分,差异均有统计学意义(P<0.05);干预4周后,ACT组患者PBQ中的生理信念、心理信念、总分及DLQI评分分别为(12.64±2.58)分、(5.41±0.82)分、(18.05±3.40)分、(9.82±1.35)分,明显低于常规组的(18.50±2.29)分、(9.74±0.73)分、(28.24±3.02)分、(14.67±1.54)分,HPLP-Ⅱ评分为(141.39±6.31)分,明显高于常规组的(120.48±5.96)分,差异均有统计学意义(P<0.05)。结论 基于ACT的疼痛护理可帮助PHN患者形成健康促进行为,降低疼痛程度,减轻负性情绪,改善疼痛信念,提高生活质量。 展开更多
关键词 带状疱疹后遗神经痛 接纳承诺疗法 疼痛护理 疼痛程度 负性情绪 健康行为 生活质量
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SCUC/SCED问题分析 被引量:2
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作者 李利利 姚建国 +1 位作者 耿建 徐帆 《江苏电机工程》 2010年第3期24-27,31,共5页
安全约束机组组合(SCUC)与安全约束经济调度(SCED)同时考虑电力系统运行的安全性和经济性,在国外受到广泛关注,基于现代混合整数规划(MIP)算法的SCUC近几年得到实际应用和快速发展,文中对SCUC/SCED研究的最新进展进行了综述。概述了SCU... 安全约束机组组合(SCUC)与安全约束经济调度(SCED)同时考虑电力系统运行的安全性和经济性,在国外受到广泛关注,基于现代混合整数规划(MIP)算法的SCUC近几年得到实际应用和快速发展,文中对SCUC/SCED研究的最新进展进行了综述。概述了SCUC问题的优化模型和算法的研究状况,分类介绍了基于MIP算法的SCUC研究进展,并分析和评述了主要方法、原理及其优缺点,进一步提出我国开展SCUC/SCED研究急待解决的问题。 展开更多
关键词 scuc SCED 混合整数规划 智能调度
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Trust and relationship commitment on cooperative performance of supply chain 被引量:1
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作者 朱桂平 潘文安 《Journal of Southeast University(English Edition)》 EI CAS 2007年第S1期64-70,共7页
Creating and sustaining trust in cooperative performances of the supply chain constitute critical strategic components.To study the influences of organizational and individual trust on the quality of commitment and co... Creating and sustaining trust in cooperative performances of the supply chain constitute critical strategic components.To study the influences of organizational and individual trust on the quality of commitment and cooperative performance,the relationships among organizational trust,individual trust,commitment and cooperative performances of the supply chain are discussed by case analysis.Questionnaire investigation is used to study the trust and relationship commitment among supply chain partnerships on cooperative performance.Results show that both organizational and individual trust are positively correlated with cooperative performance.The indirect effects of organizational trust on cooperative performance through relationship commitment is significantly greater than its direct effects.However,the indirect effects of individual trust on cooperative performance through relationship commitment is significantly less than its direct effects.It provides all essential basis for enterprises to establish and develop stable supply chain partnerships and to enhance competitive advantages. 展开更多
关键词 supply chain partnership TRUST commitment PERFORMANCE
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基于SCUC的可入网混合电动汽车优化调度方法 被引量:21
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作者 蔡秋娜 文福拴 +1 位作者 薛禹胜 辛建波 《电力系统自动化》 EI CSCD 北大核心 2012年第1期38-46,共9页
在可入网混合电动汽车(PHEV)有望规模化应用的背景下,以传统的计及安全约束的机组最优组合(SCUC)问题为基础,发展了能够容纳PHEV的电力系统优化调度数学模型。所发展的模型以保证系统安全运行为前提,兼顾了PHEV车主的经济效益与发电的... 在可入网混合电动汽车(PHEV)有望规模化应用的背景下,以传统的计及安全约束的机组最优组合(SCUC)问题为基础,发展了能够容纳PHEV的电力系统优化调度数学模型。所发展的模型以保证系统安全运行为前提,兼顾了PHEV车主的经济效益与发电的碳排放成本。利用PHEV作为可移动电量储存单元的特性,将模型解耦为机组最优组合与计及交流潮流约束的充/放电计划优化2个子模型。应用混合整数规划方法和牛顿—拉夫逊潮流算法迭代求解优化问题,可以同时获取日前机组调度计划和各时段的PHEV最优接纳容量及充/放电计划等结果。最后,以6节点和IEEE 118节点2个系统为例,验证了所构建模型的正确性和有效性。 展开更多
关键词 最优调度 可入网混合电动汽车 机组组合 最优充/放电计划 电力系统
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考虑输电线路动态增容技术的鲁棒机组组合
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作者 丁然 李寅晓 +2 位作者 姚一鸣 邱威 郭鸿业 《电力自动化设备》 北大核心 2026年第1期217-224,共8页
高比例可再生能源的接入将使电力系统调度面临日益严重的电网阻塞难题。为了充分挖掘输电线路的潜在传输容量,提出一种考虑动态增容技术的鲁棒机组组合方法。提出基于盒式集合与椭球集合相结合的不确定集合构建方法,以准确刻画风电出力... 高比例可再生能源的接入将使电力系统调度面临日益严重的电网阻塞难题。为了充分挖掘输电线路的潜在传输容量,提出一种考虑动态增容技术的鲁棒机组组合方法。提出基于盒式集合与椭球集合相结合的不确定集合构建方法,以准确刻画风电出力与线路动态传输容量的不确定性与时空相关性。建立考虑动态增容的两阶段鲁棒机组组合模型,并采用列与约束生成算法与基于卡罗需-库恩-塔克(KKT)条件的模型转化方法进行求解。通过算例分析验证所提方法的有效性,结果表明:动态增容技术能够显著增加输电线路的传输容量,提升系统运行的经济性;不确定集合构建方法可以更准确地刻画不确定性因素的取值范围与相关性,改善决策结果的保守性。 展开更多
关键词 动态增容 鲁棒机组组合 两阶段鲁棒优化 不确定集合 可再生能源
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面向可信度提升的数模混合驱动快速机组组合求解方法
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作者 王文烨 冯川 +2 位作者 管昱翔 马文浩 车亮 《电力系统自动化》 北大核心 2026年第1期74-85,共12页
随着新型电力系统电源结构、电网拓扑日益复杂,系统节点数、机组数不断增大,采用传统优化方法求解安全约束机组组合(SCUC)模型面临维数灾、计算速度慢等问题。虽然采用数据驱动决策方法可以快速求解SCUC模型,但其可解释性不足导致决策... 随着新型电力系统电源结构、电网拓扑日益复杂,系统节点数、机组数不断增大,采用传统优化方法求解安全约束机组组合(SCUC)模型面临维数灾、计算速度慢等问题。虽然采用数据驱动决策方法可以快速求解SCUC模型,但其可解释性不足导致决策结果不可用。为应对上述问题,提出面向可信度提升的数模混合驱动快速机组组合求解方法。首先,构建基于深度强化学习(DRL)的SCUC求解模型,实现机组启停决策结果的快速预求解;然后,构建综合考虑DRL行为级可解释性指标和策略级可解释性指标的启停决策可信度评估体系,识别出高可信度的机组启停结果,增强决策结果的可解释性;最后,构建数模混合驱动的SCUC实现模型的快速求解,并对低可信度的决策结果进行优化调整。基于某省级电网748节点系统的仿真验证表明,所提方法在增强机组启停决策结果可解释性的前提下,实现了SCUC的快速求解。 展开更多
关键词 机组组合 深度强化学习 数据驱动 可解释性 可信度
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一种基于拉格朗日与时间解耦的超大规模SCUC求解框架 被引量:2
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作者 彭超逸 顾慧杰 +3 位作者 周华锋 邱方堃 张淼 葛言 《南方电网技术》 CSCD 北大核心 2024年第1期3-13,27,共12页
安全约束机组组合(security constrained unit commitment,SCUC)是电网出清场景中最为广泛使用的一类模型。建立了一种针对超大规模SCUC现货市场出清问题的求解框架,首先提出了SCUC问题的时间解耦求解方法,通过缩小问题的规模来加快求... 安全约束机组组合(security constrained unit commitment,SCUC)是电网出清场景中最为广泛使用的一类模型。建立了一种针对超大规模SCUC现货市场出清问题的求解框架,首先提出了SCUC问题的时间解耦求解方法,通过缩小问题的规模来加快求解速度;其次针对时间解耦后模型的子问题提出了拉格朗日松弛求解技术,在不影响求解准确度的情况下,有效降低了关键困难约束的求解难度。数值实验证明,所提出的框架极大地提升了求解效率,且十分稳定。 展开更多
关键词 现货市场出清 安全约束机组组合 拉格朗日松弛方法 整数规划 时间解耦
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接纳与承诺疗法在癌症患者中的应用特征与效果
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作者 温倩 韦梅娟 韦芳记 《海南医学》 2026年第1期145-152,共8页
目的 整合接纳与承诺疗法(acceptance and commitment therapy,ACT)在癌症患者中的应用现状,明确其干预策略、实施特征及效果。方法 基于JBI范围综述框架,检索中国知网、中国生物医学文献数据库、万方、维普、PubMed、Web of science、E... 目的 整合接纳与承诺疗法(acceptance and commitment therapy,ACT)在癌症患者中的应用现状,明确其干预策略、实施特征及效果。方法 基于JBI范围综述框架,检索中国知网、中国生物医学文献数据库、万方、维普、PubMed、Web of science、Embase、PsycINFO、The Cochrane Library等中英文数据库,并补充手工检索相关期刊与会议论文,时限为建库至2025年4月30日,提取纳入研究的干预特征及结局指标。结果 共纳入25篇文献,涵盖乳腺癌、肺癌等多种癌症类型。干预以护士主导的多学科团队实施,整合正念、隐喻等核心技术,联合虚拟现实等创新形式(频次:6~10次/周;时长:25~120 min/次)。ACT可提升心理灵活性、减轻负性情绪、改善生活质量,但对罕见癌种及老年患者研究不足。结论 ACT在癌症患者中应用效果显著,可适应不同癌症类型及疾病阶段,未来需解决干预方案异质性大、特殊人群研究薄弱等问题,并开展多中心研究,拓展应用范围,提升其临床转化价值。 展开更多
关键词 接纳与承诺疗法 癌症 干预策略 心理灵活性 范围综述
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