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《环境科学与工程前沿(英文)》 2023年 第17卷 第9期 doi: 10.1007/s11783-023-1705-1
● A study assessing the temperature-injury relationship was conducted among students.
关键词: Ambient temperature Fall Road traffic injury Student China
Special issue: Management of road and railway traffic and transportation engineering
Yongfu SUN, Ziyou GAO
《工程管理前沿(英文)》 2017年 第4卷 第4期 页码 385-387 doi: 10.15302/J-FEM-2017110
Simulation model based on Monte Carlo method for traffic assignment in local area road network
Yuchuan DU, Yuanjing GENG, Lijun SUN
《结构与土木工程前沿(英文)》 2009年 第3卷 第2期 页码 195-203 doi: 10.1007/s11709-009-0032-3
关键词: traffic assignment local area road network turning ratio Monte Carlo method
郭仪,周清雷,黄敬宝
《中国工程科学》 2006年 第8卷 第3期 页码 87-90
在研究国内外道路交通安全评价方法的基础上,根据我国道路交通安全现状及道路交通安全监督管理的要求,将灰色系统理论应用于道路交通安全评价,建立了一套基于TWW函数的道路交通安全灰色评价指标体系,并对6省市的交通安全水平进行了比较研究。
Hamid MIRZAHOSSEIN; Milad SASHURPOUR; Seyed Mohsen HOSSEINIAN; Vahid Najafi Moghaddam GILANI
《结构与土木工程前沿(英文)》 2022年 第16卷 第5期 页码 657-666 doi: 10.1007/s11709-022-0827-z
关键词: safety rural accidents multiple logistic regression artificial neural networks
朱庄生,王庆,万德钧
《中国工程科学》 2009年 第11卷 第8期 页码 83-87
利用传统的基于节点连接的道路网络模型来表达真实世界中的道路网络,其存在的缺陷越来越突出,大大降低了导航系统的鲁棒性。为了消除这些缺陷,首次提出一个新的道路网络模型,即基于虚拟节点连接的道路网络模型,其虚拟节点是汇交路段的各个端点所围成的区域,具有真实道路路口的形状,与传统模型相比,该模型更能表达真实世界道路网络中的交通流,所以它能更好地满足地图匹配理论要求。另外,该模型能很好的表达真实道路路口参数,所以它在交通规划,交通管理和交通流模拟中都有着十分广阔的应用前景。
雷洋,马军海,张玉春,黄承锋,周建庭,吴宏波
《中国工程科学》 2019年 第21卷 第4期 页码 14-21 doi: 10.15302/J-SSCAE-2019.04.010
“一带一路”陆上沿线地区经济、社会和自然环境具有多样性和复杂性,实现“一带一路”公路基础设施的互联互通,存在诸多制约因素和挑战,亟需战略层面的研究和指引。本文基于大量的调研和专题研究,对“一带一路”陆上主要经济走廊的公路发展进行综合评估,梳理和归纳沿线公路建设面临的制约因素;结合战略思维和技术方案,提出总体建设和推进思路:以需求和基础定走向,以走向定自然和环境障碍,以自然和环境障碍定关键工程,以关键工程定技术解决方案,在此基础上,形成“一带一路”陆上主要走廊公路基础设施发展路径和重大工程建议;在战略实施过程中,结合评估关键控制工程的难易程度和资金需求量提出建设先后时序,针对项目本身的社会经济环境,制定可行的融资方案和运营方案。
关键词: “一带一路”,公路,工程科技,基础设施
Bile duct injury repair — earlier is not better
null
《医学前沿(英文)》 2015年 第9卷 第4期 页码 508-511 doi: 10.1007/s11684-015-0418-7
Bile duct injury is a common complication of cholecystectomy. The timing of bile duct injury repair remains controversial. A recent review conducted in France reported 39% complications and 64% failure after immediate repair in 194 patients compared with 14% complications and 8% failure after late repair in 133 patients. A national review of 139 consecutive early repairs conducted at five hepatopancreaticobiliary centers in Denmark reported 4% mortality, 36% morbidity, and 42 restrictures (30%) at a median follow-up of 102 months, and only 64 patients (46%) demonstrated uneventful short-term and long-term outcomes. Most patients with bile duct injury present with bile leak and sepsis; thus, early repair is not recommended. Percutaneous drainage of bile and endoscopic stenting are the mainstays of treatment of bile leak because they convert acute bile duct injury into a controlled external biliary fistula. The ensuing benign biliary stricture should be repaired by a biliary surgeon after a delay of 4–6 weeks once the external biliary fistula has closed.
关键词: bile duct injury cholecystectomy laparoscopic cholecystectomy
郑晅,郭佳奇
《中国工程科学》 2010年 第12卷 第3期 页码 39-44
秦岭终南山特长公路隧道规模庞大,通风系统复杂,为了合理确定通风配置,节约通风费用,评估自然风和交通活塞风等非机械式通风方式的通风效果就显得非常重要。课题组现场监测了终南山特长公路隧道内的自然风速、交通量及自然风压和交通风压共同作用下的风速,收集了大量数据。通过对监测数据的处理、分析得出,较大自然风速出现在10∶00—14∶00这个时间段,最大自然风速达到2.576 m/s;隧道东、西线交通量出现高峰期的时间段基本恒定;隧道东线内自然风压和交通风压共同作用下的风速较大的时间段基本上与交通量高峰期时间段相吻合,而西线这两个时间段吻合性较差,洞内风速变化相对平缓。考虑洞口外风向频率、风向、洞口实测温度等参数的自然风速计算方法计算值与实测自然风速较接近。隧道内自然风压和交通风压联合作用下的风速计算值虽小于现场实测值,但较接近实测值。
Loss of monocarboxylate transporter 1 aggravates white matter injury after experimental subarachnoid
《医学前沿(英文)》 2021年 第15卷 第6期 页码 887-902 doi: 10.1007/s11684-021-0879-9
关键词: microRNAs monocarboxylate transporter 1 motor training subarachnoid hemorrhage white matter injury
Risk factors of prognosis after acute kidney injury in hospitalized patients
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《医学前沿(英文)》 2017年 第11卷 第3期 页码 393-402 doi: 10.1007/s11684-017-0532-9
The risk factors, especially laboratory indicators, of prognosis after acute kidney injury (AKI) remain unclear. We conducted a retrospective survey of Chinese People’s Liberation Army General Hospital from January 1, 2012 to December 31, 2012 according to the AKI diagnosis standard issued by Kidney Disease Improving Global Outcomes. The epidemiological features and factors influencing hospital mortality and renal function recovery were evaluated through logistic regression analysis. Among 77 662 cases of hospitalized patients, 1387 suffered from AKI. The incidence rate and mortality of AKI were 1.79% and 14.56%, respectively. Multivariate logistic regression analysis revealed that high AKI stage, age greater than 80 years, neoplastic disease, low cardiac output, increased white blood cell count, and decreased platelet count and serum albumin levels were the risk factors affecting the mortality of AKI patients. Conversely, body mass index between 28 and 34.9 was a protective factor. Increased AKI stage, tumor disease, post-cardiopulmonary resuscitation, and RRT were the risk factors of renal function recovery upon discharge. In addition to traditional risk factors, white blood cell count, platelet count, albumin, and BMI were the predictors of the mortality of AKI patients. No laboratory indicators were found to be the risk factors of renal function recovery in AKI patients.
Multi-class dynamic network traffic flow propagation model with physical queues
Yanfeng LI, Jun LI
《工程管理前沿(英文)》 2017年 第4卷 第4期 页码 399-407 doi: 10.15302/J-FEM-2017041
关键词: first-in-first-out (FIFO) multi-class traffic physical queues traffic flow modeling
Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER
《工程管理前沿(英文)》 2017年 第4卷 第4期 页码 490-497 doi: 10.15302/J-FEM-2017008
关键词: floating car data map matching three phase traffic theory traffic reconstruction traffic service quality navigation systems
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1301-1316 doi: 10.1007/s11709-021-0765-1
Leonurine protects ischemia-induced brain injury via modulating SOD, MDA and GABA levels
Shilei ZHENG, Jingru ZHU, Jiao LI, Shuang ZHANG, Yunfei MA
《农业科学与工程前沿(英文)》 2019年 第6卷 第2期 页码 197-205 doi: 10.15302/J-FASE-2018245
The present study was designed to investigate the protective effects of leonurine, a compound purified from that is active on ischemic rat behavior and cortical neurons, and explore the underlying mechanism. The general rat activity, cortical neuron morphology, superoxide dismutase (SOD), malondialdehyde (MDA), -aminobutyric acid (GABA) and glutamate decarboxylase 67 (GAD67) levels were measured. We found leonurine significantly improve the general activity of rats in an open-field test, which was associated with attenuated neuronal damage induced by ischemia. Moreover, serum SOD activity was significantly greater, MDA level lower in the leonurine group as compared with ischemia group. In addition, GABA content in the cerebral cortex was significantly greater in high-dose leonurine group. Correspondingly, GAD67 protein level coincided with the GABA level. Taken together, our results demonstrated that leonurine attenuated brain injury during ischemia via antioxidative and anti-excitotoxicity effects by targeting GABA and leonurine might become a useful adjuvant neuroprotective agent.
标题 作者 时间 类型 操作
Evaluating the short-term effect of ambient temperature on non-fatal outdoor falls and road traffic injuries
期刊论文
Special issue: Management of road and railway traffic and transportation engineering
Yongfu SUN, Ziyou GAO
期刊论文
Simulation model based on Monte Carlo method for traffic assignment in local area road network
Yuchuan DU, Yuanjing GENG, Lijun SUN
期刊论文
Presentation of machine learning methods to determine the most important factors affecting road traffic
Hamid MIRZAHOSSEIN; Milad SASHURPOUR; Seyed Mohsen HOSSEINIAN; Vahid Najafi Moghaddam GILANI
期刊论文
Loss of monocarboxylate transporter 1 aggravates white matter injury after experimental subarachnoid
期刊论文
Multi-class dynamic network traffic flow propagation model with physical queues
Yanfeng LI, Jun LI
期刊论文
Traffic services for vehicles: the process from receiving raw probe data to space-time diagrams and theresulting traffic service
Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER
期刊论文
Integrating storm surge modeling with traffic data analysis to evaluate the effectiveness of hurricane
期刊论文