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期刊论文 7

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Ballistic behavior of plain and reinforced concrete slabs under high velocity impact

Chahmi OUCIF, Luthfi Muhammad MAULUDIN, Farid Abed

《结构与土木工程前沿（英文）》 2020年 第14卷 第2期   页码 299-310 doi: 10.1007/s11709-019-0588-5

摘要： This work presents a numerical simulation of ballistic penetration and high velocity impact behavior of plain and reinforced concrete slabs. In this paper, we focus on the comparison of the performance of the plain and reinforced concrete slabs of unconfined compressive strength 41 MPa under ballistic impact. The concrete slab has dimensions of 675 mm × 675 mm × 200 mm, and is meshed with 8-node hexahedron solid elements in the impact and outer zones. The ogive-nosed projectile is considered as rigid element that has a mass of 0.386 kg and a length of 152 mm. The applied velocities vary between 540 and 731 m/s. 6 mm of steel reinforcement bars were used in the reinforced concrete slabs. The constitutive material modeling of the concrete and steel reinforcement bars was performed using the Johnson-Holmquist-2 damage and the Johnson-Cook plasticity material models, respectively. The analysis was conducted using the commercial finite element package Abaqus/Explicit. Damage diameters and residual velocities obtained by the numerical model were compared with the experimental results and effect of steel reinforcement and projectile diameter were studies. The validation showed good agreement between the numerical and experimental results. The added steel reinforcements to the concrete samples were found efficient in terms of ballistic resistance comparing to the plain concrete sample.

关键词： Johnson-Holmquist-2     Johnson-Cook     reinforced concrete     damage     impact loads    

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Cohort study of patients with Stevens–Johnson syndrome and toxic epidermal necrolysis in China: evaluation

Yanhong Shou, Lu Yang, Yongsheng Yang, Xiaohua Zhu, Feng Li, Bo Yin, Yingyan Zheng, Jinhua Xu

《医学前沿（英文）》 2021年 第15卷 第4期   页码 585-593 doi: 10.1007/s11684-020-0817-2

摘要： Stevens--Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are rare but severe diseases. This study aimed to validate the predictive ability of risk models in patients with SJS/TEN and propose possible refinement in China. Patients in the Department of Dermatology of Huashan Hospital from January 2008 to January 2019 were included. Results showed that the severity-of-illness score for TEN (SCORTEN) had a good discrimination (area under the receiver operating characteristic curve (AUC), 0.78), and it was superior to auxiliary score (AS) and ABCD-10, which indicates age, bicarbonate level, cancer, dialysis, and 10% involved body surface area (AUC, 0.69 and 0.68, respectively). The calibration of SCORTEN (Hosmer–Lemeshow goodness-of-fit test, = 0.69) was also better than that of AS ( = 0.25) and ABCD-10 ( = 0.55). SCORTEN and ABCD-10 were similar (Brier score (BS), 0.04 and 0.04) in terms of accuracy of predictions. In addition, the imaging appearance of pulmonary consolidation on computed tomography was associated with high mortality. Refined models were formed using the variables and this imaging appearance. The refined AS and ABCD-10 models were similar in discrimination compared with the original SCORTEN (0.74 vs. 0.78, = 0.23; 0.74 vs. 0.78, = 0.30, respectively). Therefore, SCORTEN showed good discrimination performance, calibration, and accuracy, and refined AS or ABCD-10 model may be an option when SCORTEN variables are not available.

关键词： Stevens–Johnson syndrome     toxic epidermal necrolysis     auxiliary score     ABCD-10     pulmonary consolidation    

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深碳观测计划——对地球内部碳的十年探索

Schiffries, Andrea Johnson Mangum, Jennifer L. Mays, Michelle Hoon-Starr, Robert M. Hazen

《工程（英文）》 2019年 第5卷 第3期   页码 372-378 doi: 10.1016/j.eng.2019.03.004

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系统神经工程综述：神经成像、接口及调控技术研究进展 Review

Edelman,Nessa Johnson,Abbas Sohrabpour,童善保,Nitish Thakor,Bin He

《工程（英文）》 2015年 第1卷 第3期   页码 292-308 doi: 10.15302/J-ENG-2015078

摘要：

本文综述了在系统层面研究大脑内部活动最先进的技术。负责我们日常生活的神经活动是由大脑不同区域复杂的协调过程共同完成的。表面上，不同功能由具体的解剖结构所控制，然而事实上是通过内部大量相互连接的神经元和突触通路的动态网络来实现的。因此，从系统层面能更好地理解大脑的正常生理或病理状态。目前已有很多神经工程技术，但本文将重点关注三个领域：神经成像、神经接口和神经调控技术。神经成像能够帮助我们描绘大脑的结构和功能，这对理解正常和疾病状态下的神经系统功能至关重要。基于神经影像的知识，可以开发神经接口与神经系统进行交流，或者调控大脑的活动。这三个领域的研究对开发相关的仪器、设备及其应用很关键。在神经反馈的基础上，通过神经接口 (侵入式或非侵入式) 监测神经活动 (通过神经影像模式)，以一定的刺激参数，调控和改变神经功能。总之，系统神经工程是指利用工程工具和技术来成像、解码和调控大脑，进一步理解大脑的正常功能及障碍修复。这些领域之间的相互交叉将引领系统神经工程的发展方向——发展神经技术，来增强对大脑整体功能和功能障碍的理解，以及对神经和精神障碍的干预。

关键词： 系统神经工程     神经成像     神经接口     神经调节     神经技术     脑&ndash     计算机接口     脑&ndash     机器接口     神经刺激    

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Microbial responses to combined oxidation and catalysis treatment of 1,4-dioxane and co-contaminants in groundwater and soil

Johnson, Kimberly Heck, Sujin Guo, Camilah D. Powell, Thien Phan, Phillip B. Gedalanga, David T.

《环境科学与工程前沿（英文）》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1071-6

摘要：

Groundwater microbial community was altered after catalysis and chemical oxidation.

The coupled treatment train removed 90% 1,4-dioxane regardless of co-contaminants.

Dynamics of microbial populations varied along with different treatment stages.

Many microbial taxa exhibited resilience against oxidative and catalytic treatments.

Metagenomic analysis will be valuable for long-term management of polluted sites.

关键词： Coupled treatments     Chlorinated solvents     Diethylene ether     Biological diversity     Microbial populations     Biomarkers    

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Basic consideration of research strategies for head and neck cancer

null

《医学前沿（英文）》 2012年 第6卷 第4期   页码 339-353 doi: 10.1007/s11684-012-0213-7

摘要：

Head and neck cancer (HNC) consists of a group of malignancies affecting closely related anatomical regions of the upper aerodigestive tract (UADT), including the oral cavity, salivary glands, upper and lower jaw bones and facial skin; the nasal cavity, paranasal sinuses, pharynx, larynx and thyroid gland (although the latter is often excluded and considered as part of endocrine neoplasms). Of these, 90% of HNCs are histologically squamous cell carcinomas originating from the mucosal lining. These malignancies are strongly associated with certain environmental and life-style risk factors, principally tobacco in both smoked and smokeless forms, excessive alcohol consumption, diets poor in antioxidants and essential micronutrients, UV light, chemicals used in certain workplaces, and viruses, principally certain strains of human papillomavirus (HPV) and Epstein-Barr virus (EBV). These cancers are frequently aggressive in their biological behaviour with local invasion and metastasis to lymph nodes in the neck. Since most patients are already at late stages of disease at the time of diagnosis, the desirable practice of early diagnosis (first sign of the malignant lesion at an initial stage ) and early treatment, a critical priority to save lives and retain quality of life, is difficult to implement. Thus, primary prevention has been set as a key goal. This article aims to reinforce the basic knowledge of aetiology, key risk factors related to the development of head and neck cancer, basic features of clinical appearance of this group of cancers, and strategies for prevention and early detection. We also suggest basic research strategies on the basis of current knowledge, which should ultimately lead to the improvement of clinical management.

关键词： clinical management     head and neck cancer     prevention and early detection     research strategies     risk factors    

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碳捕集和封存技术研究开发及未来清洁能源行业部署—— 澳大利亚在过去20年中的经验教训

Cook Peter J.

《工程（英文）》 2017年 第3卷 第4期   页码 477-484 doi: 10.1016/J.ENG.2017.04.014

摘要：

碳捕集和封存（CCS）技术作为一种碳减排手段，虽未得到全方位认可，但其重要性已得到人们的广泛认可。但是，若要将全球温度上升幅度控制在低于2℃，则此技术的推广应用速度并不能满足相关的需求。虽然大规模推广CCS 技术所面临的困难尚无法全部克服，但通过不断的研究、交流和规划，目前CCS 技术已得到了极大丰富。我们知道如何进行相关操作，并自信能安全有效地完成相关操作；我们知道相关的成本情况，也知道目前成本正在不断降低，而且未来会继续降低。同时，我们也知道，只要各个国家、公司、团体继续将化石燃料用作能源及用于各种工业过程，则世界就会一直需要碳捕集和封存技术。我们缺少的是必要的政策驱动和技术上呈中性（不会增加二氧化碳排放）的方法，以达到及时、低成本地降低CO2 排放，并维持稳定的、安全的电力供应以保证能源密集型工业产品的生产和使用。我们以澳大利亚为例来说明过去20 年内人们对碳捕集和封存技术所做的各种努力，尤其是在碳捕集和封存技术研究和示范工程以及国际合作方面所做的各种努力。在澳大利亚国内，碳捕集和封存技术的大规模推广进展非常慢。但全球最大的碳捕集和封存项目将作为Gorgon 液化天然气项目的一部分，很快在澳大利亚国内投入运营，另外还有数个大规模的碳捕集和封存的旗舰级项目正在考察中。CO2CRC Otway 项目是澳大利亚国内目前唯一一个运行中的二氧化碳封存项目。该项目目前正在进行一些细节方面的组织和推进工作。需要指出的是，如果要推广Otway 项目，还需对地下岩石对封存CO2 的影响开展大量研究。如果要在全球范围广泛使用碳捕集和封存技术，国际能源机构和国际气候变化委员会等机构都认为我们面临很大的挑战，还有很多重大问题需要解决。要解决这些问题，全球各方必须紧密协作。

关键词： 二氧化碳     碳捕集和封存技术     Otway     澳大利亚    

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标题 作者 时间 类型 操作

Ballistic behavior of plain and reinforced concrete slabs under high velocity impact

Chahmi OUCIF, Luthfi Muhammad MAULUDIN, Farid Abed

期刊论文

Cohort study of patients with Stevens–Johnson syndrome and toxic epidermal necrolysis in China: evaluation

Yanhong Shou, Lu Yang, Yongsheng Yang, Xiaohua Zhu, Feng Li, Bo Yin, Yingyan Zheng, Jinhua Xu

期刊论文

深碳观测计划——对地球内部碳的十年探索

Schiffries, Andrea Johnson Mangum, Jennifer L. Mays, Michelle Hoon-Starr, Robert M. Hazen

期刊论文

系统神经工程综述：神经成像、接口及调控技术研究进展

Edelman,Nessa Johnson,Abbas Sohrabpour,童善保,Nitish Thakor,Bin He

期刊论文

Microbial responses to combined oxidation and catalysis treatment of 1,4-dioxane and co-contaminants in groundwater and soil

Johnson, Kimberly Heck, Sujin Guo, Camilah D. Powell, Thien Phan, Phillip B. Gedalanga, David T.

期刊论文

Basic consideration of research strategies for head and neck cancer

null

期刊论文

碳捕集和封存技术研究开发及未来清洁能源行业部署—— 澳大利亚在过去20年中的经验教训

Cook Peter J.

期刊论文