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我国制造业外循环国际环境问题研究

税务与经济 2024年第2期 59-67页

作者：巴殿君刘力源吉林大学东北亚学院吉林长春130012

自2010年以来,中国成为世界公认的“世界工厂”,制造业也成为我国经济社会发展的重要支柱。当前,世界科技变革正在不断加速,而逆全球化趋势加剧、世界经济复苏进程缓慢、局部冲突愈演愈烈等问题,使得世界进入了一个快速运动和革命的新... 详细信息

自2010年以来,中国成为世界公认的“世界工厂”,制造业也成为我国经济社会发展的重要支柱。当前,世界科技变革正在不断加速,而逆全球化趋势加剧、世界经济复苏进程缓慢、局部冲突愈演愈烈等问题,使得世界进入了一个快速运动和革命的新时期。中国正处于发展的战略机遇期、风险期和挑战期,面对个别外国政府对中国企业的围剿逐步升级,我国依然要坚定对外开放的态度,完善外循环服务内循环的经济发展理念,借力RECP建立供应链外循环平衡发展新模式,抓住机遇加强对制造业供应链的风险预测,利用数字经济消除制造业供应链外循环阻点,从而有效提升我国制造业在国际市场上的竞争能力,进一步优化发展制造业。

关键词：制造业外循环国际环境供应链

西藏自治区科技创新工作指标体系和考核标准研究

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产业科技创新 2024年第3期6卷 22-25页

作者：拉巴西藏大学西藏拉萨850000

本文在对西藏科技创新工作指标体系构建理论认识的基础上,对比指标体系理论做出进一步分析,提出了在构建西藏科技创新工作指标体系时所应体现的价值标准以及构建西藏科技创新工作评价指标体系所要达到的目标,为进一步优化西藏科技管理... 详细信息

本文在对西藏科技创新工作指标体系构建理论认识的基础上,对比指标体系理论做出进一步分析,提出了在构建西藏科技创新工作指标体系时所应体现的价值标准以及构建西藏科技创新工作评价指标体系所要达到的目标,为进一步优化西藏科技管理体制、检验科技发展的问题和成就寻找完善路径。

关键词：科技发展科技创新考核标准

基于GPU的北斗B1宽带复合信号实时发生器设计

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系统工程与电子技术 2024年第3期46卷 795-804页

作者：王子涵巴晓辉姜维蔡伯根王剑文韬北京交通大学电子信息工程学院北京100044 北京交通大学轨道交通控制与安全国家重点实验室北京100044 北京市电磁兼容与卫星导航工程技术研究中心北京100044 北京交通大学计算机与信息技术学院北京100044

为了实现北斗B1C+B1I信号的联合生成,提出一种基于软件无线电和图形处理器(graphics processing unit,GPU)加速的北斗B1宽带复合信号的实时生成方法,该方法针对单边带复数二进制偏移载波(single-sideband complex binary offset carrier... 详细信息

为了实现北斗B1C+B1I信号的联合生成,提出一种基于软件无线电和图形处理器(graphics processing unit,GPU)加速的北斗B1宽带复合信号的实时生成方法,该方法针对单边带复数二进制偏移载波(single-sideband complex binary offset carrier,SCBOC)调制方式的信号体制进行设计,系统根据用户配置的接收机运动轨迹和星历文件,生成中频信号并通过射频端发射。为了进一步提升GPU并行运算速度,从优化设备内存结构、设计并行线程架构和统一计算设备架构流(compute unified device architecture stream,CUDA)加速3个方面,设计了基于异步运算的加速采样点数据计算的CUDA优化实现方案。测试结果证明,优化后的算法可以基于SCBOC调制实时生成北斗B1I+B1C信号,基于GTX3060的GPU平台,信号90 M采样率下能实现8颗卫星复合信号的实时生成。

关键词： B1宽带复合信号软件无线电单边带复数二进制偏移载波调制统一计算设备架构流实时生成

Is convenience really king? Comparative evaluation of catastrophic costs due to tuberculosis in the public and private healthcare sectors of Viet Nam: a longitudinal patient cost study

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贫困所致传染病(英文) 2024年第2期13卷 1-12页

作者： Nguyen Hoa Binh Quang Vo Luan Nguyen Forse Rachel Jeanette Wiemers Anja Maria Christine Huynh Huy ba Dong Thuy Thi Thu Phan Yen Thi Hoang Creswell Jacob Dang Thi Minh Ha Nguyen Lan Huu Shedrawy Jad L?nnroth Knut Nguyen Tuan Dinh Van Dinh Luong Annerstedt Kristi Sidney Codlin Andrew James National Lung Hospital Ha Noi Viet Nam Friends for International TB Relief Ha Noi Viet Nam Department of Global Public Health WHO Collaboration Centre On Tuberculosis and Social Medicine Karolinska Institute Stockholm Sweden Stop TB Partnership Geneva Switzerland Pham Ngoc Thach Hospital Ho Chi Minh City Viet Nam

background In Viet Nam, tuberculosis (TB) represents a devastating life-event with an exorbitant price tag, partly due to lost income from daily directly observed therapy in public sector care. Thus, persons with TB may seek care in the private sector for its flexibility, convenience, and privacy. Our study aimed to measure income changes, costs and catastrophic cost incurrence among TB-affected households in the public and private *** Between October 2020 and March 2022, we conducted 110 longitudinal patient cost interviews, among 50 patients privately treated for TB and 60 TB patients treated by the National TB Program (NTP) in Ha Noi, Hai Phong and Ho Chi Minh City, Viet Nam. Using a local adaptation of the WHO TB patient cost survey tool, participants were interviewed during the intensive phase, continuation phase and post-treatment. We compared income levels, direct and indirect treatment costs, catastrophic costs using Wilcoxon rank-sum and chi-squared tests and associated risk factors between the two cohorts using multivariate *** The pre-treatment median monthly household income was significantly higher in the private sector versus NTP cohort (USD 868 vs USD 578;P=0.010). However, private sector treatment was also significantly costlier (USD 2075 vs USD 1313;P=0.005), driven by direct medical costs which were 4.6 times higher than costs reported by NTP participants (USD 754 vs USD 164;P<0.001). This resulted in no significant difference in catastrophic costs between the two cohorts (Private: 55% vs NTP: 52%;P=0.675). Factors associated with catastrophic cost included being a single-person household [adjusted odds ratio [(aOR=13.71; 95% confidence interval (CI): 1.36–138.14;P=0.026], unemployment during treatment (aOR=10.86; 95%CI: 2.64–44.60;P<0.001) and experiencing TB-related stigma (aOR=37.90; 95%CI: 1.72–831.73;P=0.021).Conclusions Persons with TB in Viet Nam face similarly high risk of catastrophic costs whether treated in the

关键词： Tuberculosis Patient cost Catastrophic cost Private sector Comparative analysis Viet Nam

Estimation of the Direct Cost of Management of Venous Thromboembolism in Three Reference Hospitals in the City of Yaoundé: A Retrospective Study over a Three-Year Period

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World Journal of Cardiovascular Diseases 2024年第2期14卷 99-114页

作者： Hamadou ba Nganou-Ngnindjio Chris Nadège Tatchim Samuel Aimé Kamdem Félicité Tchoukoua Serge Honoré Ahmadou Jingi Danwe Dieudonne Kingue Samuel Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon Department of Internal Medicine Garoua General Hospital Garoua Cameroon Cardiology Department Yaoundé Central Hospital Yaoundé Cameroon Higher Institute of Health Sciences University of the Mountains Bagangté Cameroon Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Department of Internal Medicine Douala General Hospital Douala Cameroon Faculty of Health Sciences University of Bamenda Bamenda Cameroon Cardiology Department Yaoundé General Hospital Yaoundé Cameroon

background: Venous thromboembolism (VTE) is a major public health problem due to its increasing frequency, mortality and management cost. This cost may require major financial efforts from patients, especially in developing countries like ours where less than 7% of the population has health insurance. This study aimed to estimate the direct cost of managing VTE in three reference hospitals in Yaoundé. Methods: This was a cross-sectional retrospective study over a three-year period (from January 1st 2018 to December 31 2020) carried out in the Cardiology departments of the Central and General Hospitals, and the Emergency Centre of the city of Yaoundé. All patients managed during the study period for deep vein thrombosis and pulmonary embolism confirmed by venous ultrasound coupled with Doppler and computed tomography pulmonary angiography respectively were included. For each patient, we collected sociodemographic and clinical data as well as data on the cost of consultation, hospital stay, workups and medications. These data were analysed using SPSS version 23.0. Results: A total of 92 patient’s records were analysed. The median age was 60 years [48 - 68] with a sex ratio of 0.53. The median direct cost of management of venous thromboembolism was 766,375 CFAF [536,455 - 1,029,745] or $1415 USD. Management of pulmonary embolism associated with deep vein thrombosis was more costly than isolated pulmonary embolism or deep vein thrombosis. Factors influencing the direct cost of management of venous thromboembolism were: hospital structure (p = 0.015), health insurance (p 0.001), type of pulmonary embolism (p = 0.021), and length of hospital stay (p = 0.001). Conclusion: Management of VTE is a major financial burden for our patients and this burden is influenced by the hospital structure, health insurance, type of pulmonary embolism and length of hospital stay.

关键词： Cost Management Venous Thromboembolism Yaoundé

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地下管廊抗震研究现状综述

天津大学学报（自然科学与工程技术版） 2024年第2期57卷 209-222页

作者：梁建文陈慧芳李东桥巴振宁天津大学建筑工程学院天津300350

针对地下管廊工程建设高速发展、抗震减灾需求愈发凸显的现状,综述地下管廊抗震研究现状.首先,通过国内外以往的震害实例,对地下管廊的震害形式、震害影响因素及震害机理进行了系统性总结.其次,从拟静力试验和振动台试验两个方面总结了... 详细信息

针对地下管廊工程建设高速发展、抗震减灾需求愈发凸显的现状,综述地下管廊抗震研究现状.首先,通过国内外以往的震害实例,对地下管廊的震害形式、震害影响因素及震害机理进行了系统性总结.其次,从拟静力试验和振动台试验两个方面总结了地下管廊抗震性能的试验研究现状.再次,总结了地下管廊抗震分析的简化分析方法、动力时程方法、地震易损性评估及减隔震技术的研究现状.最后,基于文献综述提出了目前地下管廊抗震研究亟待解决的问题并做出展望,以期促进地下管廊抗震研究的发展.研究表明:地下管廊在地震作用下的破坏形式主要有混凝土剥落、裂缝贯通、接缝错位或张开、管廊受剪断裂等;地震作用下地下管廊穿越非均匀场地时动力响应的放大效应显著,地下管廊穿越软硬交互等非均匀场地时的抗震性能研究值得重视;交叉节点是地下管廊的薄弱环节,交叉管廊的抗震设计方法研究值得关注;预制管廊接头易受到地震破坏,不同类型预制管廊接头的抗震性能研究需深入探索;城市大型地下管廊系统抗震性能受到不同交叉节点和不同管廊之间的交互影响,高效的地下管廊系统建模方法和高效的简化分析方法亟待研究;城市大型地下管廊系统地震易损性分析是重要的发展方向;地下管廊的减隔震技术值得发展.

关键词：地下管廊震害拟静力试验振动台试验简化分析方法动力时程方法地震易损性减隔震技术

基于FK-FE混合方法的位错点源作用下全过程结构地震反应模拟

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工程力学 2024年第4期41卷 184-198页

作者：巴振宁鲁世斌付继赛梁建文芦燕中国地震局地震工程综合模拟与城乡抗震韧性重点实验室天津300354 天津大学土木工程系天津300354

基于区域缩减思想,集整基于精确动力刚度矩阵的频率波数域(FK)半解析方法和有限元(FE)数值方法各自优势(FK精确高效模拟一维波速结构地震波传播;FEM具有丰富单元和本构类型,可精细模拟工程结构地震反应),提出了一种从震源到工程结构全... 详细信息

基于区域缩减思想,集整基于精确动力刚度矩阵的频率波数域(FK)半解析方法和有限元(FE)数值方法各自优势(FK精确高效模拟一维波速结构地震波传播;FEM具有丰富单元和本构类型,可精细模拟工程结构地震反应),提出了一种从震源到工程结构全过程地震反应模拟的FK-FE混合方法。并将FK代码作为插件二次开发到大型商业有限元软件AbaQUS中,实现了AbaQUS平台下从震源到工程结构的全过程宽频地震反应物理模拟。验证了FK-FE混合方法正确性,进而将其应用于位错点源作用下美国SAC机构设计的9层Benchmark抗弯钢框架结构全过程0 Hz~15 Hz宽频地震反应模拟,重点探讨了地壳层波速结构和近地表场地条件对框架结构地震反应的影响。研究表明:地壳层速度结构和场地类别对该结构的地震反应均有显著影响,地壳层速度结构3(较硬)相比速度结构1(较软),结构最大位移和层间位移角分别减小了22.7%和62.0%;Ⅱ类场地相较于Ⅳ类场地,结构最大位移和层间位移角分别减小了22.3%和44.7%。

关键词：地震反应位错点源 FK-FE混合方法区域缩减全过程模拟

Late Diagnosis of Turner Syndrome in Adulthood;a Case Study from the Endocrinology-Diabetology Nutrition Department of the National Hospital of Pikine Senegal

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Open Journal of Endocrine and Metabolic Diseases 2024年第5期14卷 115-122页

作者： Nafy Ndiaye Yakham Mohamed Leye Ngone Diaba Diack Mamadou ba Bibatou Abdoulaye Leye Abdou Aziz Diouf Alassane Diouf Jean Pascal Demba Diop Internal Medicine/Endocrinology-Diabetology Department Teaching Hospital of Pikine Cheikh Anta Diop University Dakar Senegal Department of Gynaecology-Obstetric Teaching Hospital of Pikine Cheikh Anta Diop University Dakar Senegal Department of Human Genetic Faculty of Medicine Pharmacy and Odontology Cheikh Anta Diop University Dakar Senegal

Introduction: Turner syndrome is a rare genetic disorder characterised by the presence of one X chromosome and the absence of part or all of an X or Y chromosome and patients may experience delayed puberty and infertility. Our study aimed to evaluate the diagnostic delay in our practice and analyze the impact of this diagnostic delay on the effectiveness of patient management. Patients and Methods: Turner syndrome patients were identified from the endocrinology-diabetology nutrition department Database We examined the records of patients in whom the karyotype analysis favoured Turner syndrome. Results: We have selected 5 patients’ records of female patients with Turner syndrome. The mean age was 25, ranging from 19 to 29 years. Primary amenorrhea and characteristic dysmorphic features were observed in all patients. One married patient, who sought consultation for infertility, expressed a desire for pregnancy. Short stature was identified in 3 patients. Primary hypothyroidism and hypertension were respectively found in 1 and 2 patients. Gonadal dysgenesis was noted in 100% of cases. Karyotype analysis revealed monosomy X in 2 patients and mosaic patterns in others. All patients received estrogen-progestin treatment. Antihypertensive therapy was initiated for 2 patients. One patient is on L-thyroxine. In the short term, treatment led to the onset of menstruation after the initial months. Evaluation of treatment efficacy on internal genital organs is yet to be performed. Due to uncertain benefits at this age, growth hormone therapy was not considered for our patients. We provided counseling on assisted reproductive options for couples desiring to conceive. In our study, all patients were placed on estrogen-progestin therapy, and the response appeared favorable. Conclusion: In our practice, the diagnosis of Turner syndrome occurs very late in adulthood, at an age when growth hormone treatment is nearly ineffective. Treatment typically revolves around estrogen-progestin

关键词： Turner Syndrome Primary Amenorrhea Adult Pikine

鱼腥草乙酸乙酯萃取部位的化学成分及抗植物病原菌活性研究

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天然产物研究与开发 2024年第4期36卷 616-621页

作者：张丽孙建鹏巴其斌兰州城市学院化学工程学院兰州730070

采用硅胶、大孔树脂、葡聚糖凝胶、MCI树脂、薄层色谱以及高效液相色谱等色谱分离方法,从鱼腥草(Houttuynia cordata)地上部分95%乙醇提取物的乙酸乙酯萃取部位分离得到10个化合物。运用质谱、核磁共振等波谱技术和文献对比法鉴定了其结... 详细信息

采用硅胶、大孔树脂、葡聚糖凝胶、MCI树脂、薄层色谱以及高效液相色谱等色谱分离方法,从鱼腥草(Houttuynia cordata)地上部分95%乙醇提取物的乙酸乙酯萃取部位分离得到10个化合物。运用质谱、核磁共振等波谱技术和文献对比法鉴定了其结构,分别鉴定为去氢催吐萝芙木醇(1)、5,6-环氧-3-羟基-β-紫罗兰酮(2)、黑麦草内酯(3)、pubinernoid A(4)、槲皮苷(5)、槲皮素(6)、阿福豆苷(7)、4-甲氧基苯-1,2-二醇(8)、4-羟基苯甲醛(9)、苯甲酸(10)。化合物1~4为首次从鱼腥草中分离得到的降碳倍半萜。对所有化合物进行了抗植物病原菌活性筛选,结果显示:在40 mg/mL浓度下,化合物5~7对禾谷镰刀菌、褐枝孢菌、番茄灰霉病菌、瓜类球腔菌和棉花枯萎病菌抑菌率介于38%~50%之间。

关键词：鱼腥草分离鉴定降碳倍半萜抗植物病原菌活性

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