检索结果-南通市图书馆

Blockchain-based refurbishment certification system for enhancing the circular economy

BLOCKCHAIN-RESEARCH AND APPLICATIONS 2024年第1期5卷 85-96页

作者： Regueiro, Cristina Gomez-Goiri, Aitor Pedrosa, Nuno Semertzidis, Christos iturbe, Eider Mansell, Jason TECNALIA Res & Innovat Basque Res & Technol Alliance BRTA Parque Cient & Tecnol Bizkaia Derio Bizkaia 48160 Spain Projecto Desenvolvimento Manutencao Formacao & Co Rua Fradesso Silveira N 41B P-1300609 Lisbon Portugal

As the global population continues to grow, the enormous stress on our environment and resources is becoming impossible to ignore. A focus on producing and consuming as cheaply as possible has created an economy in which objects are briefly used and then discarded as waste, featuring a linear lifecycle that creates an enormous amount of waste. The alternative to the linear economy "take-make-waste" is called the "circular economy". Under this paradigm, materials are recycled to build new products or components that are designed and built to promote their reuse and refurbishment. This assures the continuous (re-)exploitation of existing resources, reducing the extraction of new raw materials. However, customers often reject these reused or refurbished products under the suspicion that they do not meet the same usability, safety, or performance levels of new products. In this sense, trustworthy records of historical details of refurbished products could increase consumers' confidence in products and components of the "circular economy", prioritizing trustworthiness, reliability, and transparency. This work presents a new certification tool based on blockchain technology to guarantee trusted, accurate, transparent, and traceable lifecycle information of products and their components and to generate trustworthy certificates to probe refurbished product historical details. This tool aims to enhance refurbished product visibility by creating the basis for making the circular economy a reality in any domain.

关键词： Blockchain Traceability Lifecycle Product lifecycle management (PLM) Refurbishment Certification Circular economy MANAGEMENT

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CO₂ Transformation at Controlled Temperature with Lithium Hydroxide Solution and Metallic Lithium

引用

Journal of Minerals and Materials Characterization and Engineering 2024年第3期12卷 189-203页

作者： Elizabeth Teresita Romero-Guzmán José Luis iturbe-García Departamento de Quí mica Gerencia de Ciencias B&#225sicas Instituto Nacional de Investigaciones Nucleares Carretera M&#233xico-Toluca S/N. La Marquesa Ocoyoac&#225c Estado de M&#233xico Mexico

This paper presents a study on CO2 atmospheric transformation which was reacted directly with lithium hydroxide solution and metallic lithium. This solution was obtained through the reaction between metallic lithium and deionized water where hydrogen is produced and by exposing the metal at ambient conditions. In the transformation process, atmospheric CO2 gas reacts directly with LiOH solution, in both cases, the CO2 transformation kinetics was different. For this purpose, reactions between CO2 and LiOH solution were carried out under controlled temperature and the second process only with metallic lithium, which was exposed at room temperature, however, in these two processes lithium carbonate oxide was formed and identified. According to the results, the efficiency in CO2 transformation is a function of temperature value which was variable until completely obtaining the by-product, its XRD characterization indicated the formation only of Li2CO3 in both procedures. Under laboratory conditions lithium compounds selectively reacted with CO2. In the same way, there is an alternative procedure to obtain LiOH and Li2CO3 for different applications in various areas.

关键词： Metallic Lithium Lithium Hydroxide Solution Hydrogen Atmospheric CO2 Transformation Lithium Carbonate

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

赫尔辛基古根海姆博物馆

引用

现代装饰 2015年第3期 122-125页

作者： Peru Caada Xabler Arranz alejandro iturbe Julen Quevedo Jon Andonl Iparragulrre Ubay Calle Alvaro Arbina Igor Gonzalez Iigo Salaburu Nagila Ramos Martín García 姜敏华

波罗的海的女儿——赫尔辛基是芬兰最大的港口城市,人口密集,有着地球上极少数城市所特有的活力与创造力,而这创造力,尤其体现在它的建筑和设计上。赫尔辛基一直鼓励和致力于现代化高科技的蓬勃发展。但是,尽管赫尔辛基这个城市现已具... 详细信息

波罗的海的女儿——赫尔辛基是芬兰最大的港口城市,人口密集,有着地球上极少数城市所特有的活力与创造力,而这创造力,尤其体现在它的建筑和设计上。赫尔辛基一直鼓励和致力于现代化高科技的蓬勃发展。但是,尽管赫尔辛基这个城市现已具备大都会的魅力和高标准的生活条件,但实际上,芬兰整体上仍然处于农业社会,

关键词：赫尔辛基博物馆港口城市波罗的海人口密集农业社会创造力高科技

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

CO2 Transformation at Controlled Temperature with Lithium Hydroxide Solution and Metallic Lithium

引用

Journal of Minerals and Materials Characterization and Engineering（矿物质和材料特性和工程） 2024年第3期 189页

作者： Elizabeth Teresita Romero-Guzmán José Luis iturbe-García

来源：博看期刊评论

在线全文

博看期刊

学校读者我要写书评

暂无评论

Use of two-surfactants mixtures to attain specific HLB values for assisted TPH-diesel biodegradation

引用

Journal of Environmental Sciences 2004年第6期16卷 950-956页

作者： Luis G. Torres Neftalí Rojas Rosario iturbe Instituto de Ingeniería Universidad Nacional Autó noma de México Coordinación de Ingeniería Ambiental Grupo Saneamiento de Suelos y Acuíferos Apartado Postal 70-472 Coyoacán 04510 México D.F. Mexico

In a surfactant assisted biodegradation process, the choice of surfactant(s) is of crucial importance. The question is: does the type of surfactant(i.e. chemical family) affect the biodegradation process at fixed hidrophillic-lypofillic balance(HLB) values? Microcosm assessments were developed using contaminated soil, with around of 5000 mg/kg of hydrocarbons as TPH-diesel. Mixtures of three nonionic surfactants were employed to get a wide range of specific HLB values. Tween20 and Span20 were mixed in the appropriate proportions to get HLB values between 8.6 and 16.7. Tween/Span60 mixtures reached HLB values between 4.7 and 14.9. Finally, Tween/Span80 combinations yielded HLB values between 4.3 and 15. TPH-diesel biodegradation was measured at the beginning, and after 8 weeks, as well as the FCU/gr soil, as a measure of microorganisms′ development during the biodegradation period. A second aim of this work was to assess the use of guar gum as a biodegradation enhancer instead of synthetic products. The conclusions of this work are that surfactant chemical family, and not only the HLB value clearly affects the assisted biodegradation rate. Surfactant's synergism was clearly observed. Regarding the use of guar gum, no biodegradation enhancement was observed for the three assessed concentrations, i.e., 2, 20, and 200 mg/kg, respectively. On the contrary, TPH-diesel removal was lower as the gum concentration increased. It is quite possible that guar gum was used as a microbial substrate.

关键词： aged soils enhanced bioremediation HLB mixtures Tween Span surfactants

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synthesis of Tantalum Hydride Using Mechanical Milling and Its Characterization by XRD,SEM,and TGA

引用

Advances in Nanoparticles 2014年第4期3卷 159-166页

作者： Jose Luis iturbe-Garcia Beatriz Eugenia Lopez-Munoz Chemistry Department National Institute of Nuclear ResearchesOcoyoacacMexico

In this paper, we report the results obtained from different phases of metal hydrides. The synthesis and characterization of tantalum hydrides were obtained “in situ” during mechanical milling. Elemental Ta with purity of 99.8% was used in this investigation to obtain the hydrides. A highenergy ball milling technique was utilized to prepare hydrogenated phases. Ta hydrides and oxides were formed as function of milling process time. Milling times of 5, 10 and 20 hours were programmed, and the ball-to-powder weight ratio was 10:1. The material was first characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Before and after hydrogenation process the material was also analyzed by TGA. X-ray diffraction analysis demonstrated that only tantalum hydrides (Ta2H and TaH0.5) were obtained after 20 h of milling. We will discuss the effect of the ball-milling process about formation “in situ” of nanometric tantalum hydrides with methanol as a hydrogen source.

关键词： Nanometric Ta Hydrides Mechanical Milling Methanol Dissociation XRD TGA SEM

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Alternative （1＋1）-D Dark Spatial Soliton-Like Distributions in Kerr Media

引用

Journal of Physical Science and Application 2011年第3期1卷 196-203页

作者： D. Ramirez Martinez M.M. Mendez Otero M.L. Arroyo Carrasco M.D. iturbe Castillo Benemerita Universidad Autonoma de Puebla Avenida San Claudio y Rio Verde colonia San Manuel Ciudad Universitaria Puebla Puebla C.P. 72570 Mexico Instituto Nacional de Astrofisica Optica y Electronica Luis Enrique Erro#1 Tonantzintla Puebla C.P. 72840 Mexico

In this paper, we solve numerically the nonlinear Schrodinger equation for a defocusing Kerr media with initial conditions different to the hyperbolic tangent function. We demonstrate that initial conditions with a similar position dependence than the hyperbolic tangent evolve to a hyperbolic tangent function, therefore can be considered as （1＋1）-D spatial solitons. The waveguide induced by these conditions is not single mode; it has the capacity to confine one mode more.

关键词： Kerr effect solitons optical optical waveguide nonlinear

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

波尔图Kinematix办公室

引用

现代装饰 2015年第6期 112-115页

作者： Diogo Aguiar Teresa Otto Joo Jesus Tània Costa Coll lvaro Vila iturbe Dinis Sottomayor 姜敏华 LIKE建筑事务所

项目地址葡萄牙项目面积180m^2竣工时间2014.05设计单位LIKE建筑事务所本案是LIKE建筑事务所的设计团队为一家专业致力于医疗保健技术和健身产品的IT公司Kinematix打造的研发总部。项目坐落于葡萄牙第二大城市——波尔图一栋具有象征意... 详细信息

项目地址葡萄牙项目面积180m^2竣工时间2014.05设计单位LIKE建筑事务所本案是LIKE建筑事务所的设计团队为一家专业致力于医疗保健技术和健身产品的IT公司Kinematix打造的研发总部。项目坐落于葡萄牙第二大城市——波尔图一栋具有象征意义的六十年代历史建筑内,其前身为卢米埃尔电影院。该建筑上层现存的空间安装有排列整齐的窗户,覆盖建筑物的整个立面,极具韵律感。

关键词：波尔建筑事务所 Kinematix 项目地址自然光线设计单位历史建筑韵律感象征意义项目面积

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

帕立骨化醇下调心肌肾素血管紧张素和成纤维细胞生长因子的表达,改善尿毒症大鼠的心肌肥厚

引用

中华高血压杂志 2014年第9期22卷 898-898页

作者： Freundlich M Li YC Quiroz Y Bravo Y Seeherunvong W Faul C Weisinger JR Rodriguez-iturbe B 罗冬梅

维生素D可能通过抑制心肌肾素血管紧张素系统（renin—angiotensinsystem，RAS）和成纤维细胞生长因子（fibroblast growth factors, FGFs）改善尿毒症所致的心肌肥厚。在实验性大鼠尿毒症模型中，研究者比较利用维生素D类似物帕立骨... 详细信息

维生素D可能通过抑制心肌肾素血管紧张素系统（renin—angiotensinsystem，RAS）和成纤维细胞生长因子（fibroblast growth factors, FGFs）改善尿毒症所致的心肌肥厚。在实验性大鼠尿毒症模型中，研究者比较利用维生素D类似物帕立骨化醇和血管紧张素转换酶抑制剂依那普利抑制RAS和FGF受体基因表达和心肌肥厚改善之间的关系。

关键词：成纤维细胞生长因子肾素血管紧张素系统心肌肥厚实验性大鼠尿毒症骨化醇血管紧张素转换酶抑制剂维生素D类似物

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

帕里骨化醇单用以及联合成纤维细胞生长因子23受体抑制剂在慢性肾功能衰竭中的心脏保护作用:试验与临床研究

引用

中华高血压杂志(中英文) 2019年第11期 1098-1098页

作者： Czaya B Seeherunvong W Singh S Yanucil C Ruiz P Qui-roz Y Grabner A Katsoufis C Swaminathan S Abitbol C Rodriguez-iturbe B Faul C Freundlich M

在尿毒症动物的研究中发现,维生素D受体(vitamin D receptor,VDR)激动剂如帕里骨化醇(paricalcitol,Pc)可减轻心肌肥大,但目前在慢性肾脏病患者中尚未观察到该作用是否存在。成纤维细胞生长因子23(fibroblast growth factor 23,FGF23)... 详细信息

在尿毒症动物的研究中发现,维生素D受体(vitamin D receptor,VDR)激动剂如帕里骨化醇(paricalcitol,Pc)可减轻心肌肥大,但目前在慢性肾脏病患者中尚未观察到该作用是否存在。成纤维细胞生长因子23(fibroblast growth factor 23,FGF23)水平升高可激活心肌钙调神经磷酸酶/活化T细胞核因子(nuclear factor of activated T cell,NFAT)信号通路,引起心肌肥厚,可能对抗VDR激动剂治疗的心肌保护

关键词：成纤维细胞生长因子骨化醇心脏保护作用慢性肾功能衰竭临床研究受体抑制剂

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：