Prevention is of paramount importance in tunnel engineering, especially operation tunnel. In this study, the deformation data Suzhou Metro Line 1 are used to evaluate health shield during operation. Firstly, relationship between effective ratio bending rigidity and analyzed, results show that has a negative power with deformation, conversion from realized corresponding risk classification crite...

The YL Tunnel of the Chongqing–Kunming high-speed railway project, a key project whole line, is typical ultra-long deep tunnel facing geologic problems, such as rock bursts, large deformation, water inrush, and toxic or harmful gas leakage, among which high ground stress results in most serious damage. This study incorporates existing studies materials, well data on obtained through tests using...

In the process of tunnel construction, water inrush disaster is one main engineering geological disasters. karst strata, different types water-bearing structures or bodies develop and occur in soluble rock layer, excavation easily forms new drainage channels, resulting tunnel. Based on project Huali Highway Banyanzi Tunnel, this paper studies characteristics, mechanism, treatment measures Accor...

Abstract. Starting from an exact counting of small and positive cosmological constant states in the Bousso-Polchinski Landscape we recover a well-known approximate formula and a systematic method of improvement by means of the Poisson summation formula. This is a contribution to the special Volume published by the University of Zaragoza in honor of Julio Abad Antoñanzas. En memoria de nuestro a...

Permasalahan prioritas yang dihadapi oleh mitra adalah tuntutan kebutuhan pembelajaran abad 21 yaitu keterampilan menggunakan model inovatif, literasi dan berpikir tingkat tinggi (Higher Order Thinking Skills) masih perlu ditingkatkan. Solusi ditawarkan melatih untuk menerapkan berbasis proyek, HOTS. Metode pengabdian dilakukan secara luring dengan konsep Introduction, Connection, Application, ...

Perhaps it is because I am not a professional medicinal chemist, or possibly it is because I am a person that prefers the visual presentation of data as opposed to a long list of numbers in parallel vertical columns; either way, the fact is that the conventional structure–activity relation tables (SAR-tables), which have been and still are the essential item in most medicinal chemistry papers, ...

With the large-scale construction of city subways, the down traversing formed by subway running tunnels through the existing railways or railway yards are increasing day by day. Down traversing in shield method becomes common; however, the engineering cases which can be referable in the down traversing formed by the shallow-buried excavation of double-arch tunnels through the existing railways ...

Can Yao,1 Francisco J. Rodriguez,1 Jorge Bravo-Abad,2 and Jordi Martorell1,3 1ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels, Barcelona, Spain 2Departamento de Fı́sica Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain 3Departament de Fı́sica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Terrassa, Spain (...

Biology of a nocturnal bee, Megalopta atra (Hymenoptera: Halictidae; Augochlorini), from the Panamanian highlands Simon M. Tierney a; Therany Gonzales-Ojeda b; William T. Wcislo a a Smithsonian Tropical Research Institute, Ancón, Panama b Facultad de Ciencias Forestales y Medio Ambiente, Universidad Nacional de San Antonio Abad del Cusco Sede Puerto Maldonado Jr. San Martín 451, Madre de Dios, ...

This paper presents the results of research carried out to improve emergency response activities in earthquake-prone areas of Iran. The research concentrated on emergency response operations, emergency medical care, emergency transportation, and evacuation-the most important issues after an earthquake with regard to saving the lives of victims. For each topic, some guidelines and criteria are p...