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多源固废协同制备土壤固化剂及固化机理

森林工程 2025年第1期41卷 195-204页

作者：褚锋吴思吴传山马亚李骏山东高速建设管理集团有限公司济南230000 山东高速济德公路有限公司山东德州253000 山东高速工程检测有限公司济南230002

为实现冶金固废材料的高值化、规模化利用,采用冶金固废材料(高炉矿渣、粉煤灰、电石渣、石膏)协同制备土壤固化剂,通过正交配比优化试验研究不同固废材料对固化土力学性能的影响并获取最优的参数配方。系统研究固废基固化剂(SWC)固化... 详细信息

为实现冶金固废材料的高值化、规模化利用,采用冶金固废材料(高炉矿渣、粉煤灰、电石渣、石膏)协同制备土壤固化剂,通过正交配比优化试验研究不同固废材料对固化土力学性能的影响并获取最优的参数配方。系统研究固废基固化剂(SWC)固化土的力学性能(无侧限抗压强度、劈裂强度、延迟成型)和耐候性能(水稳定性、冻融循环),并与PO 42.5硅酸盐水泥(OPC)进行对比。结果表明,电石渣对固化剂体系起到重要作用,合理的石膏掺量对强度增长有积极作用;固化土的强度随SWC掺量和养护龄期的增加而增大,4%掺量下的固化土7 d无侧限抗压强度大于1 MPa,劈裂强度与OPC固化土基本相当;SWC固化土表现出更久的施工容许延迟时间,拌和后12 h内强度无下降趋势;掺量大于5%时水稳定系数大于90%,同掺量下抗冻系数与水泥相比提高3%~5%,具备良好的水稳定性与抗冻性;X射线衍射(XRD)和扫描电子显微镜(SEM)分析表明,SWC固化土在水化过程中会生成膨胀性水化产物钙矾石(AFt)和硅酸钙(C-S-H),钙矾石晶体对改善固化土的劈裂强度和抵抗开裂变形能力提高作用显著。

关键词：道路工程固化剂力学性能固化土工业固废

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智慧医疗情境下四方主体隐私行为的交互机理及演化趋势研究

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现代情报 2025年第1期45卷 135-149页

作者：朱光吴晗逸刘雯南京信息工程大学风险治理与应急决策研究院江苏南京210044 南京信息工程大学管理工程学院江苏南京210044

[目的/意义]本文针对智慧医疗情境下隐私行为研究在博弈主体、模型参数等方面的不足,探寻患者、医疗机构、智慧医疗平台和政府四方主体之间的隐私行为交互机理与演化趋势。[方法/过程]基于演化博弈理论,构建患者、医疗机构、智慧医疗平... 详细信息

[目的/意义]本文针对智慧医疗情境下隐私行为研究在博弈主体、模型参数等方面的不足,探寻患者、医疗机构、智慧医疗平台和政府四方主体之间的隐私行为交互机理与演化趋势。[方法/过程]基于演化博弈理论,构建患者、医疗机构、智慧医疗平台和政府四方博弈模型。根据不同参数调节下各方行为策略的收益、成本、损失等计算收益矩阵,求解主体的演化稳定策略,并考虑不同因素对主体行为策略及系统稳定状态的影响。[结果/结论]患者的隐私披露行为与披露隐私后获得的服务收益密切相关,医疗机构的隐私保护投入成本和隐私泄露概率对其隐私保护行为有显著影响,智慧医疗平台的政府奖惩、罚款收益和投入成本是影响其严格管理行为的关键因素,政府的监管行为与奖惩机制等因素密切相关。通过应用本文模型和方法,可以动态调整隐私保护机制,明确各方职责,推动智慧医疗可持续健康发展。

关键词：智慧医疗演化博弈隐私行为患者医疗机构智慧医疗平台政府

踝关节骨折术后踝穴冠状位角度波动与关节功能恢复的关系

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中国组织工程研究 2025年第9期29卷 1820-1826页

作者：刘琰王铠吴敏泰州市中医院骨科江苏省泰州市225300

背景:踝关节骨折术后的踝穴形态指标会出现相应变化,而其中踝穴冠状位角度变化与踝关节的功能恢复之间存在一定的关联,既往研究大多探讨患者术后踝穴高度恢复,故研究踝关节骨折术后踝穴冠状位角度的波动与关节功能恢复的相关性具有一定... 详细信息

背景:踝关节骨折术后的踝穴形态指标会出现相应变化,而其中踝穴冠状位角度变化与踝关节的功能恢复之间存在一定的关联,既往研究大多探讨患者术后踝穴高度恢复,故研究踝关节骨折术后踝穴冠状位角度的波动与关节功能恢复的相关性具有一定参考意义。目的:探讨踝关节骨折术后踝穴冠状位角度变化对关节功能恢复的影响。方法:纳入进行手术治疗的86例踝关节骨折患者为研究对象,根据末次随访美国骨科足踝外科协会踝-后足评分结果分为优良组(n=45)和可差组(n=41),比较两组患者的一般资料。根据踝关节的踝穴位及侧位X射线片对比术后患者患侧和健侧的踝穴形态指标:包括踝穴宽度和深度、冠状位角度及矢状位角度,以及上述指标患侧和健侧之间的差值,并进一步进行组内比较分析。构建联合模型,利用Cox回归分析评估冠状位角度波动与关节功能恢复情况的关系。利用最小绝对收缩选择算子回归法和多因素Logistic回归分析影响患者关节功能恢复的危险因素。按踝穴冠状位角度从低到高等分为5分位数组(Q1-Q5),比较5组患者的临床资料特征,并采用多因素Logistic回归分析踝穴冠状位角度变化与关节功能恢复不良风险的相关性,建立限制性立方样条Logistic回归模型分析其剂量-反应关系。建立回归方程y=1-1/(1+e^(-z))预测模型并进行验证。结果与结论:①患者患侧的踝穴宽度和深度、冠状位角度及矢状位角度均显著大于健侧(P均<0.05);且与优良组患者相比,可差组患者踝穴宽度差值、深度差值、冠状位角度差值及矢状位角度差值均更大(P<0.05);②联合模型显示无论冠状位角度是否在正常范围内,冠状位角度每纵向增加1˚,关节功能恢复不良的风险增加3%;③最小绝对收缩选择算子回归和多因素Logistics回归分析显示,调整潜在混杂因素后发现年龄过大、早期功能锻炼缺乏、无跟骨牵引、内固定物未取出、术后并发症、踝冠状位角度增大均为影响患者关节功能恢复的独立危险因素(P<0.05);④术后3个月内的冠状位角度与关节功能恢复效果不良风险存在独立相关性(OR=1.57,95%CI:1.38-1.76,P=0.002),且术后各时间段冠状位角度从低到高5分位数组趋势性检验差异有统计学意义(P趋势<0.001);⑤限制性立方样条模型分析显示,男性或女性的踝穴冠状位角度变化与关节功能恢复效果不良风险均不存在非线性关系;经Bootstrap自抽样,预测模型区分度、准确度较好;⑥提示踝关节骨折术后踝穴冠状位角度减小对关节功能恢复起到明显的促进作用,因此在踝关节骨折术后重点检测踝穴冠状位角度有助于了解患者关节功能恢复情况。

关键词：踝关节骨折踝穴冠状位角度关节功能 Logistic回归分析

Study of Bed Friction Factor for the wu River Estuary

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China Ocean Engineering 2006年第4期20卷 557-572页

作者： Chin-wu LAN Cyuan-Chen LEE Department of Civil Engineering National Chung-Hsing University

In this research the bed friction effect is estimated of a river estuary by use of hydrodynamic analysis. The on-site sampled data of the wu River estuary is applied to the analysis. There are many dynamic factors that affect the flow characteristics in the estuary. The effect of tide on the generation of tidal current, bottom friction and geometry effect is the focus of this paper. The wu River estuary is about 15 hn in length, with a small bottom slope and no physical obstruction; thus the incident wave at the estuary is considered a progressive wave with damping effect. The amplitude reduction and phase shift of the incident wave are analyzed. By the analysis of celerity reduction factor of the estuary, the estimated value of mean resistance coefficient M（μ ,κ）, damping modulus μ, and wave number κ for the sections at observation stations can be determined. Furthermore, data gathered from on-site observations are applied for validation. Finally, Manning＇ s coefficient for each section of the observation stations can be determined. It is found that the value of Manning＇ s coefficient is small downstream and increases towards upstream, and that the bed friction effect of an estuary varies largely. The estimated results of the paper are compared with the empirical formulas and the modified solution for practical application is discussed.

关键词： estuary Manning' s coefficient celerity reduction factor damping modulus resistance coefficient

Ray wu's Golden Rules:How he achieved greatness in work,and in life

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Science China(Life Sciences) 2009年第2期52卷 101-107页

作者： Albert W. wu Christina C. wu Diana K. Sugg Health Policy and Management at the Johns Hopkins Bloomberg School of Public Health

Overview When Ray wu passed away on February 10, 2008, he was 79, working full-time in his lab at Cornell University, and was at or near the top of his long and noteworthy career. He had developed the first method for DNA sequencing and pioneered recombinant DNA technology. He had identified key genes related to stress tolerance in plants and was poised to apply these to boost crop yields of rice and

关键词： work Figure

Enteromorpha prolifera polysaccharide-Fe(Ⅲ) complex promotes intestinal development as a new iron supplement

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Science China Life Sciences 2025年第1期 219-231页

作者： Yingying Feng Yuying wu Jialu Wang Zhenglin Dong Qian Yu Shuangshuang Xia Chunxue Liu Haihua Wang Xin wu Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences CAS Key Laboratory of Agro-ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of Sciences ANYOU Biotechnology Group Co.Ltd Qingdao Seawin Biotech Group Co. LTD

Iron is a crucial micronutrient, and its deficiency can have detrimental effects on the health of infants. Dietary polysaccharide-iron(Ⅲ) complexes(PICs) are promising for addressing iron deficiency due to their minimal adverse reactions and high iron absorption rate. This study aimed to investigate the effects of dietary Enteromorpha prolifera polysaccharide-Fe(Ⅲ) complex(EP-Fe) on newborns, using 3-day weaned piglets as the iron-deficiency model. Results showed that EP-Fe improved iron levels and promoted intestinal development in piglets. Transcriptome sequencing revealed that EP-Fe increased the survival of intestinal epithelial cells under hypoxia by upregulating the expression of genes that promote the development of the vascular system. Additionally, EP-Fe enhanced the mucosal barrier functions by inhibiting myosin light chain kinase(MLCK)/phosphorylated myosin light chain(p-MLC) signaling pathway to increase the expression of intestinal tight junction proteins. Furthermore, the 16S r RNA gene sequencing of gut microbiota showed that EP-Fe promoted the enrichment of Bacteroides＿fragilis and other gut microbes that can metabolize carbohydrates. In conclusion, EP-Fe is an effective iron supplement for newborns, and it can be developed as a comprehensive nutritional supplement.

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Near-infrared brain functional characteristics of mild cognitive impairment with sleep disorders

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World Journal of Psychiatry 2025年第1期15卷 106-116页

作者： Heng Liao Sha Liao Yu-Jiao Gao Xi Wang Li-Hong Guo Su Zheng wu Yang Yi-Nan Dai Sleep Psychosomatic Medicine Center Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Integrated Chinese and Western Medicine Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Orthopaedics Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Rehabilitation Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina

BACKGROUND Mild cognitive impairment(MCI)has a high risk of progression to Alzheimer’s *** disease is often accompanied by sleep disorders,and whether sleep disorders have an effect on brain function in patients with MCI is *** To explore the near-infrared brain function characteristics of MCI with sleep *** A total of 120 patients with MCI(MCI group)and 50 healthy subjects(control group)were *** subjects underwent the functional near-infrared spec-troscopy *** baseline data,Mini-Mental State Examination,Montreal Cognitive Assessment scale,fatigue severity scale(FSS)score,sleep parameter,and oxyhemoglobin(Oxy-Hb)concentration and peak time of functional near-infrared spectroscopy test during the task *** relationship between Oxy-RESULTS Compared with the control group,the FSS score of the MCI group was higher(t=11.310),and the scores of Pittsburgh sleep quality index,sleep time,sleep efficiency,nocturnal sleep disturbance,and daytime dysfunction were higher(Z=-10.518,-10.368,-9.035,-10.661,-10.088).Subjective sleep quality and total sleep time scores were lower(Z=-11.592,-9.924).The sleep efficiency of the MCI group was lower,and the awakening frequency,rem sleep latency period,total sleep time,and oxygen desaturation index were higher(t=5.969,5.829,2.887,3.003,5.937).The Oxy-Hb concentration at T0,T1,and T2 in the MCI group was lower(t=14.940,11.280,5.721),and the peak time was higher(t=18.800,13.350,9.827).In MCI patients,the concentration of Oxy-Hb during T0 was negatively correlated with the scores of Pittsburgh sleep quality index,sleep time,total sleep time,and sleep efficiency(r=-0.611,-0.388,-0.563,-0.356).It was positively correlated with sleep efficiency and total sleep time(r=0.754,0.650),and negatively correlated with oxygen desaturation index(r=-0.561)and FSS score(r=-0.526).All comparisons were P<*** Patients with MCI and sleep disorders have lower near-infrared brain function than norm

关键词： Mild Cognitive impairment Sleep disorders Near-infrared Brain functional Characteristics

基于手机信令数据的广州市居民公园访问行为空间分异及其影响因素分析

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中山大学学报（自然科学版）（中英文） 2025年第1期64卷 195-206页

作者：刘晔叶柏麟吴景豪中山大学地理科学与规划学院广东广州510006 广东省公共安全与灾害工程技术研究中心/广东省城市化与地理环境空间模拟重点实验室广东广州510006

加快推进城市公园建设是实现人与自然和谐共生的重要抓手。既有研究大多基于问卷调查数据和访谈资料分析城市居民的公园访问行为空间分异特征,研究结论的普适性和科学性有限。手机信令数据具有大样本、覆盖范围广、信息被动提供和动态... 详细信息

加快推进城市公园建设是实现人与自然和谐共生的重要抓手。既有研究大多基于问卷调查数据和访谈资料分析城市居民的公园访问行为空间分异特征,研究结论的普适性和科学性有限。手机信令数据具有大样本、覆盖范围广、信息被动提供和动态实时性强等优点。利用手机信令数据精准刻画城市居民的公园访问行为,有助于开展城市公园的布局优化与品质提升工作。基于个体尺度的手机信令数据,本研究试图揭示广州市居民公园访问行为的空间分异特征并识别其影响因素,尤其关注城区居民和郊区居民的差别。结果表明:(1)城区居民的公园访问频率、公园访问时长和公园访问强度均高于郊区居民,前者的公园平均访问距离低于后者;(2)公园访问频率、公园访问强度、公园平均逗留时间和公园平均访问距离呈现高值集聚区/低值集聚区在城区连片分布,在郊区零星分布的空间特征;(3)公园访问行为受性别、年龄、时空约束性、社会经济地位、公园可达性、社区出行便利性和出行适宜性等因素的共同影响。本研究为相关政府部门精准开展城市公园的规划、建设与管理工作提供决策参考。

关键词：城市公园公园访问行为空间分异手机信令数据广州

紧邻在建城市轨道交通特别保护区开口基坑支护实践

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山西建筑 2025年第2期51卷 77-81页

作者：吴亮无锡市建筑设计研究院有限责任公司江苏无锡214001

基坑北侧距离济南市在建城市轨道交通R2线特别保护区仅1.9 m,特别保护区内严禁支护结构进入,务必在该有限的空间内实现支护桩和止水桩的布置,因此济南市常规的桩锚支护体系难以应用。基坑南侧为先开挖到底的居住地块基坑,因其邻近本基... 详细信息

基坑北侧距离济南市在建城市轨道交通R2线特别保护区仅1.9 m,特别保护区内严禁支护结构进入,务必在该有限的空间内实现支护桩和止水桩的布置,因此济南市常规的桩锚支护体系难以应用。基坑南侧为先开挖到底的居住地块基坑,因其邻近本基坑侧采用放坡支护,导致本基坑在南侧形成开口,难以满足支撑支点设置要求。通过在居住地块侧设置专门的支撑传力结构作为支座,在解决支撑支点设置问题的同时还增加了地下室的实际使用面积,使本基坑成为R2线特别保护区边首个采用钢管支撑的地下2层深基坑,在确保基坑本身安全的同时,满足了R2线的建设控制要求。

关键词：城市轨道交通特别保护区基坑支护钢管支撑支撑传力结构