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关键词： 城市屋顶绿化   经济效益   生态效益   社会效益  

摘要： 随着城市高楼越来越多,数以万计的建筑物屋顶呈现荒芜化,引发一系列的城市生态环境问题。日益凸显的热岛效应、洪涝灾害等城市病使得城市屋顶绿化愈加迫切。本文通过梳理有关屋顶绿化研究中涉及的三大效益,厘清不同受益者从各类效益中所获得的具体益处,以期提高城市居民参与屋顶绿化的意愿。研究发现城市屋顶绿化具有多种效益,大体上可分为经济效益、生态效益和社会效益。根据参与屋顶绿化的形式,可将屋顶绿化的受益者分为开发者、经营者和居住者。屋顶绿化的经济效益对其正常运转起着关键作用,也是保障生态效益和社会效益持续发挥作用的基础。除了寻求政策支持外,开发者和经营者应发展多种屋顶绿化形式,尊重居住者对屋顶绿化的需求,建成有居民参与的屋顶休闲空间。

关键词： 菊花   阳台   花草   《诗经》  

摘要： 妈妈平日里侍弄花草,常常忘却门边放着的一盆尚未开放、不起眼的菊花。起初,我对它也没太多好感。别的花早开了,它却只有光秃秃的枝条懒懒地倚在门旁,微微散开,像蓬乱的头发。一个阳光明媚的下午,我静静地躺在阳台的摇椅上,沐浴阳光,欣赏阳台上的花草。不经意间,我的目光落在了那盆菊花上。在阳光的照射下,它那墨绿的茎叶变得浓翠欲滴;微风拂过,它开始扭动柔嫩的腰肢翩翩起舞。我联想到了《诗经》中的静女。

关键词： 厨艺   宅家   收纳   阳台   疫情   新的机遇  

摘要： 疫情下如何好好度过宅家的每一天?有人种花草,有人学收纳,有人练厨艺,他们说--宅家,为生活打开了一扇窗。“又是被家里阳台治愈的一天”“我喜欢追求美的东西,收纳可以让人心情愉悦”“宅家做饭,美味又安全”……在疫情影响下,人们不得不少出门、少聚集,宅家成了生活的一部分。如何好好度过每一个宅家的日子?有人动念打造阳台小花园,收获了种植的乐趣;有人学习家居收纳,有了新的创业念头;有人“被迫”拿起锅铲,却发现自己竟有“厨艺大师”的潜质……一开始让人有点无奈的宅家,渐渐让人们找到了“慢生活”的乐趣,也让他们发现了新的机遇。

关键词： 改性沥青   桥梁伸缩缝   常见病害   养护要点  

摘要： 桥梁伸缩缝的存在是为了满足桥面变形需求,作为桥梁的重要组成部分之一,桥梁伸缩缝一般设置在梁端与桥台之间,需满足车辆平顺行驶、防止雨水渗透、易于检查养护等条件。日常桥梁伸缩缝的养护是维持其正常功能的基础条件,对于确保行车舒适度和行车安全具有重要意义,本文以近几年昆山市区三里桥、玉龙桥等几座桥梁为例,就改性沥青桥梁伸缩缝常见的一些问题及养护方法展开论述,期望可以为相关从业人员提供参考。

关键词： 建筑节能   保温材料   材料分类   质量控制  

摘要： 为了解决传统质量控制工作中建筑节能保温材料导热系数较高、材料温度传递速度过快的问题,文章对建筑节能保温材料的分类进行了说明,分析了不同建筑结构中保温材料的选择及保温控制层的设计,提出了建筑节能保温材料的质量控制要点,并通过实验论证的方式证明了该控制方法的有效性。

关键词： 公路桥梁   伸缩缝   施工管理   质量控制  

摘要： 采用实例分析法,以某市新建道路跨线桥项目为例,通过分析公路桥梁施工中伸缩缝施工工艺在施工准备阶段与施工流程两方面的内容,提出设备与材料的管控、建立质量控制机制、灵活应用施工形式、落实养护管理工作等控制伸缩缝施工质量的措施,以提高公路桥梁施工质量。

关键词： 公路桥梁   伸缩缝   养护  

摘要： 近年来,中国经济发展迅速,交通运输数量和金额量持续增加,每年桥梁数量都会增加,桥梁伸缩缝日益突出。在这里,伸缩缝引起的混凝土裂缝更为普遍,并会导致其他相关疾病的发生。桥梁伸缩缝损坏后,连接的缝隙会下沉,并且接缝处的路面也会损坏,从而导致过往车辆出现跳车,使车辆上的人感到不舒服,同时影响行驶速度。以扬州城市南部快速通道桥梁伸缩缝工程为例,对桥梁伸缩缝施工技术与养护方法进行阐述,最终目的是增强行车安全性,确保工程的安全质量。

关键词： 装配式   预制阳台   安装   有限元分析   施工技术  

摘要： 针对超大体量装配式预制阳台施工过程中采用传统起吊及转运工具易产生裂缝、现场吊装施工效率低、与现浇部分连接节点复杂等问题,通过对设计、生产运输、安装施工等全过程进行研究,运用ABAQUS有限元软件分析产生质量裂缝的原因。结果表明,超大预制阳台施工过程中严格控制运输存放方式,增加支撑架与阳台板之间接触面,阳台板配筋间距150mm,可以解决超大体量装配式预制阳台生产及安装施工技术问题,提高预制阳台工程质量、提升装配式建筑形象、缩短工期。

关键词： Chemotherapy  

摘要： Purpose: Primary mediastinal B cell lymphoma (PMBCL) is a highly curable subtype of non-Hodgkin lymphoma that is diagnosed predominantly in adolescents and young adults. Consequently, long-term treatment-related morbidity is critical to consider when devising treatment strategies that include different chemoimmunotherapy strategies with or without radiation therapy. Furthermore, adaptive approaches using the end-of-chemotherapy (EOC) positron emission tomography (PET)/computed tomography (CT) scanning may help to determine which patients may benefit from additional therapies. We aimed to develop evidence-based guidelines for treating these patients. Methods and Materials: We conducted a systematic review in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guideline using the PubMed database. The ARS expert committee, composed of radiation oncologists, hematologists, and pediatric oncologists, developed consensus guidelines using the modified Delphi framework. Results: Nine studies met the full criteria for inclusion based on reporting outcomes on patients with primary mediastinal B cell lymphoma with EOC PET/CT response scored with the 5-point Deauville scale. These studies formed the evidence for these guidelines in managing patients with PMBCL according to the EOC PET response, including after a 5-point Deauville scale of 1 to 3, 4, or 5, and for patients with relapsed and refractory disease. The expert group also developed guidance on radiation simulation, treatment planning, and plan evaluation based on expert opinion. Conclusions: Various treatment approaches exist in the management of PMBCL, including different chemoimmunotherapy regimens, the use of consolidative radiation therapy, and adaptive approaches based on EOC PET/CT response. These guidelines can be used by practitioners to provide appropriate treatment according to different disease scenarios. (c) 2021 Elsevier Inc. All rights reserved.

摘要： BACKGROUND CONTEXTPreoperative embolization (PE) reduces intraoperative blood loss during surgery for spinal metastases of primary thyroid and renal cell tumors. However, most spine metastases originate from primary breast, prostate, and lung tumors and it remains unclear whether these and other spine metastases benefit from PE. PURPOSETo assess whether PE reduces the amount of intraoperative blood loss in patients with spine metastases originating from primary non-thyroid and non-renal cell tumors. STUDY DESIGN/SETTINGA retrospective study from two affiliated tertiary care orthopedic oncology referral centers. PATIENT SAMPLEThis study contained a total of 387 patients who underwent surgery for spine metastases between June 2001 and June 2014; 56 with PE and 331 without PE. OUTCOME MEASURESThe estimated amount of intraoperative blood loss. METHODSOperative notes were used to determine the estimated amount of intraoperative blood loss. Multivariable analysis was used to assess whether PE was independently associated with the estimated amount of intraoperative blood loss. RESULTSPE was not independently associated with the estimated amount of intraoperative blood loss (95% Confidence Interval [CI] -0.02 – 0.58; p=0.07). Factors independently associated with the estimated amount of intraoperative blood loss included the cervical region of the spine (<0.001), the duration of surgery (<0.001), two levels of the spine operated upon (0.035) and adenocarcinoma as opposed to other primary tumors as the primary tumor of origin (p=0.045). CONCLUSIONSPreoperative embolization before surgery on non-thyroid and non-renal cell spine metastases does not significantly influence the estimated amount of intraoperative blood loss. Our data suggest that patients with these types of spine metastases might not benefit from PE. Larger studies could aid in finding a subset of spine metastases that may benefit from PE. FDA DEVICE/DRUG STATUSThis abstract does not discuss or include any appli