scholarly journals Assessment of the effect of blasting vibaration on tunnel lining of Hai Van Pass Tunnel during expanding excavation the auxiliary tunnel by drilling and blasting method

2020 ◽  
Vol 61 (HTCS6) ◽  
pp. 131-138
Author(s):  
Kien Van Dang ◽  
Keyword(s):  
Field Tests ◽  
Blasting Vibration ◽  
Viet Nam ◽  
Analysis Method ◽  
In Situ Test ◽  
Numerical Research ◽  
Relationship Of ◽  
The Relationship ◽  
Blasting Method

Experimental and numerical research of the effect of blasting vibrations during tunneling on surrounding structures (rock mass, existing tunnels, buildings, etc.) was widely studied in recent years. However, the effect of blasting vibration from a new tunnel on an existing adjacent tunnel is still unclear. A few researches has been carried out to study the relationship of the observed Peak Particle Velocity (PPV) on the lining areas along the existing tunnel direction, due to either the lack of in situ test data or the difficulty in conducting field tests, particularly for tunnels that are usually old and vulnerable after several decades of service. The paper uses the synthetic analysis method, study result of Croix-Rousse, Lyon, France to propose on assessing the effects of blasting vibration on the existing lining of the main tunnel during expanding excavation the auxiliary tunnel by drilling and blasting method in similar conditions at Hai Van Pass Tunnel in Viet Nam .

scholarly journals EFFECT OF BLASTING ON THE STABILITY OF LINING DURING EXCAVATION OF NEW TUNNEL NEAR THE EXISTING TUNNEL

2021 ◽  
Vol 30 (1) ◽  
Author(s):  
Tuan Minh Tran ◽  
Quang Huy Nguyen
Keyword(s):  
Field Data ◽  
Damage Zone ◽  
Field Tests ◽  
Surrounding Rock ◽  
In Situ Test ◽  
The Stability ◽  
Relationship Of ◽  
The Impact ◽  
The Relationship

In recent years, experimental and numerical researches on the effect of blasting pressure on the stability of existing tunnels was widely obtained. However, the effect of the blasting pressure during excavation a new tunnel or expansion old tunnels on an existing tunnel has disadvantages and still unclear. Some researches were carried out to study the relationship of the observed Peak Particle Velocity (PPV) on the lining areas along the existing tunnel direction, due to either the lack of in situ test data or the difficulty in conducting field tests, particularly for tunnels that are usually old and vulnerable after several decades of service. This paper introduces using numerical methods with the field data investigations on the effect of the blasting in a new tunnel on the surrounding rock mass and on the existing tunnel. The research results show that not only predicting the tunnel lining damage zone under the impact of blast loads but also determination peak maximum of explosion at the same time at the surface of tunnel working.

scholarly journals KETERKAITAN PERTUMBUHAN PENJUALAN PERPUTARAN PERSEDIAAN, PERPUTARAN PIUTANG, DAN PERPUTARAN KAS TERHADAP PROFITABILITAS PERUSAHAAN LQ 45 DI BURSA EFEK INDONESIA

2021 ◽  
Vol 5 (2) ◽  
pp. 781
Author(s):  
Sugiyarmasto Sugiyarmasto ◽  
Erlina Setyaningrum
Keyword(s):  
Stock Exchange ◽  
Financial Statements ◽  
Sales Growth ◽  
Analysis Method ◽  
Independent Variables ◽  
Dependent Variables ◽  
Regression Test ◽  
Inventory Turnover ◽  
Relationship Of ◽  
The Relationship

The research aims to determine and provide empirical evidence of , sales growth inventory turnover, receivables Turnover, and significant cash turnover on profitability in LQ 45 Company on Indonesia Stock Exchange year 2016-2018. The samples in this study used purposive sampling so obtained 21 company samples from 45 LQ 45 company population listed on the Indonesia Stock Exchange, with 63 observations of financial statements (21 companies x 3 years of financial statements warning). Dependent variables in this study, namely profitability. While independent variables in this study, sales growth namely inventory turnover, turnover receivables, , cash turnover. The data analysis method used is a type of multiple regression test to test the relationship of independent variables with the dependents The results of the research hypothesis testing proved that the turnover of receivables, and cash turnover significantly positively affect profitability. And sales growth has a negative and significant effect on profitability. While inventory turnover has a negative and insignificant effect on profitability in LQ 45 company in the Indonesia Keywords: sales growth,inventory turnover, turnover receivable, cash turnover,profitability

Open innovation practices adopted by private stakeholders: perspectives for living labs

Info ◽  
2015 ◽  
Vol 17 (4) ◽  
pp. 67-80 ◽  
Author(s):  
Dominic Lapointe ◽  
David Guimont
Keyword(s):  
Open Innovation ◽  
Research Literature ◽  
Extensive Literature ◽  
Content Type ◽  
Living Lab ◽  
Living Labs ◽  
Innovation Practices ◽  
Relationship Of ◽  
The Relationship

Purpose – This paper aims to explore the role of private stakeholders in the living lab (LL) ecosystem and the relationship of private stakeholders to open innovation (OI) practices. There is extensive literature on private stakeholders and OI, but seldom mention is made on the specific question of how private stakeholders integrate OI in the context of a LL. Design/methodology/approach – The authors will analyze qualitatively how private businesses that have participated in a in situ open innovation evaluate and perceived their open innovation practices. Therefore, how they relate to open innovation. Then, the authors will identify a typology of the businesses in relation to OI. Findings – The research focused on the relationship of private stakeholders to OI in the context of in situ OI activities. The results obtained are consistent with literature on OI (Chesbrough, 2003). However, there are differences: if the elements mentioned by the respondents are described in literature, their representation of OI and its components allows us to affirm that this practice is not generalised and that it is often open to interpretation. That emphasises the importance of the role LLs can play as intermediaries to accompany private stakeholders in the OI process. Private stakeholders look for a guide to develop their OI know-how and find their way in the OI ecosystem. Originality/value – The value of this paper is to bridge the research on OI done with private organisation and the research on LLs. The research literature did not pay much attention to the representation of the private stakeholders in the OI ecosystem. This paper has provided the start to open up that field.

In situ test and analysis method of air bulging under geomembranes in a shallow-lined reservoir

2015 ◽  
Vol 43 (1) ◽  
pp. 24-34 ◽  
Author(s):  
Cao Xue-shan ◽  
Yuan Jun-ping ◽  
He Gui-lin ◽  
Liu Ying-hao ◽  
Yin Zong-ze
Keyword(s):  
Analysis Method ◽  
In Situ Test

scholarly journals Mixed-Valence Cytoplasmic Iron Granules Are Linked to Anaerobic Respiration

2006 ◽  
Vol 73 (3) ◽  
pp. 993-996 ◽  
Author(s):  
S. Glasauer ◽  
S. Langley ◽  
M. Boyanov ◽  
B. Lai ◽  
K. Kemner ◽  
...  
Keyword(s):  
Ferrous Iron ◽  
Metal Particle ◽  
Ferric Iron ◽  
Solid Phase ◽  
Mixed Valence ◽  
Anaerobic Respiration ◽  
In Situ Detection ◽  
Relationship Of ◽  
The Relationship

ABSTRACT Intracellular granules containing ferric and ferrous iron formed in Shewanella putrefaciens CN32 during dissimilatory reduction of solid-phase ferric iron. It is the first in situ detection at high resolution (150 nm) of a mixed-valence metal particle residing within a prokaryotic cell. The relationship of the internal particles to Fe(III) reduction may indicate a respiratory role.

scholarly journals Keterbacaan Catatan Atas Laporan Keuangan dan Dampak Audit (Readability over Financial Reporting Footnotes and Audit Outcomes)

2021 ◽  
Vol 28 (2) ◽  
pp. 53
Author(s):  
Nadiah Bella Sagitarisma ◽  
Riesanti E. Wijaya
Keyword(s):  
Regression Analysis ◽  
Financial Reporting ◽  
Generalized Least Squares ◽  
Financial Statements ◽  
Audit Fees ◽  
Analysis Method ◽  
Data Regression ◽  
Audit Fee ◽  
Relationship Of ◽  
The Relationship

This study aims to find out the relationship of readability over financial reporting footnotes and audit outcomes. Audit outcomes are projected by audit fees and audit report lag.  Researchers used data from the company's financial statements listed on IDX in 2015-2018. Researchers used purposive sampling. From the copying, researchers processed 184 company data. This study used the panel's data regression analysis method. Data processing uses Generalized - least - squares.  This research proves that the worse the readability, the lower the audit fee.  Meanwhile, the worse the readability, the more time it takes the auditor to carry out an examination of the financial statements. This phenomenon occurs because the condition of the readability of notes to financial statements in Indonesia is still at a low level.

scholarly journals PERILAKU KEAGAMAAN DAN HASIL BELAJAR PENDIDIKAN AGAMA ISLAM DI SMA NEGERI 1 AMBARAWA KABUPATEN PRINGSEWU

2020 ◽  
Vol 1 (2) ◽  
pp. 42-47
Author(s):  
Rahmat Efendi
Keyword(s):  
Learning Outcomes ◽  
Quantitative Research ◽  
Descriptive Analysis ◽  
Islamic Education ◽  
Test Results ◽  
Analysis Method ◽  
Religious Behavior ◽  
Significant Figures ◽  
Relationship Of ◽  
The Relationship

Abstract Religious behavior student become a benchmark for the success of learning, especially learning Islam. Where the results of learning Islamic education not only from the aspect of cognitive but also affective and psychomotor aspects. Therefore, it is very interesting to do research if there is a relationship between religious behavior with Islamic education learning outcomes. The purpose of this study was to determine whether or not the relationship of religious behavior with Islamic education learning outcomes . The method used in this research is descriptive analysis method with quantitative research forms. The results showed no relationship between religious behavior with Islamic education learning outcomes. This conclusion is based on the correlation test was done using the formula Kendal tau test with SPSS. The test results show significant figures 0548> 0.05. Shown significant values greater than 0.05 means that there is a relationship between religious behavior of students with the learning outcomes of Islamic Education in SMA Negeri 1 Ambarawa Pringsewu. Abstrak Perilaku keagamaan siswa menjadi tolak ukur keberhasilan sebuah pembelajaran, khususnya pembelajaran Agama Islam. Dimana hasil belajar Pendidikan Agama Islam bukan hanya dilihat dari aspek kognitif saja namun juga aspek afektif dan psikomotorik. Oleh karena itu, sangat menarik untuk dilakukan penelitian apakah ada hubungan antara perilaku keagamaan dengan hasil belajar Pendidikan Agama Islam. Tujuan dari penelitian ini adalah untuk mengetahui ada atau tidaknya hubungan perilaku keagamaan dengan hasil belajar Pendidikan Agama Islam. Metode yang digunakan dalam penelitian ini adalah metode deskriptif analisis dengan bentuk penelitian kuantitatif. Hasil penelitian menunjukan ada hubungan antara perilaku keagamaan dengan hasil belajar Pendidikan Agama Islam. Kesimpulan ini berdasarkan uji korelasi yang telah dilakukan menggunakan rumus uji kendal tau dengan bantuan program SPSS. Adapun hasil pengujian menunjukan angka signifikan 0.548 > 0,05. Nilai signifikan yang ditunjukan lebih besar dari 0,05 berarti ada hubungan antara perilaku keagamaan siswa dengan hasil belajar Pendidikan Agama Islam di SMA Negeri 1 Ambarawa Pringsewu. Kata Kunci: Perilaku keagamaan, Hasil Belajar PAI

scholarly journals Measurement of Peat Soil Shear Strength Using Wenner Four-Point Probes and Vane Shear Strength Methods

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Irfan Ahmad Afip ◽  
Siti Noor Linda Taib ◽  
Kamaruzaman Jusoff ◽  
Liyana Ahmad Afip
Keyword(s):  
Shear Strength ◽  
Moisture Content ◽  
Soil Salinity ◽  
Peat Soil ◽  
Undrained Shear Strength ◽  
Soil Resistivity ◽  
In Situ Test ◽  
Soil Shear Strength ◽  
The Relationship

The general objective of this research was to measure the peat soil shear strength using Wenner four-point probes and vane shear strength methods. Specifically, the objective of this study was two-fold, namely, (a) investigating the relationship between laboratory soil resistivity and undrained shear strength and (b) determineing the relationship between in-situ soil resistivity and undrained shear strength. Data were randomly collected over six locations in Meranek, Sarawak, for in-situ test and three repetitions for each data were set based on three parameters. The selected parameters were soil density, moisture content, and salinity for both laboratory and in-situ test using Wenner four-point probes and vane shear method. The soil resistivity and vane shear strength readings for laboratory test were correlated with soil salinity, moisture content, and density. The R2 values showed a good correlation for soil salinity (R2 =0.8468) and density (R2 =0.9475), respectively. However, a weak correlation of R2 =0.1205 was observed for soil moisture. The R2 value for in-situ correlation between soil resistivity and three parameters (soil salinity, moisture content, and density) was R2 =0.8916. It can be concluded that the peat soil shear strengths of the study area using Wenner four-point probes from in-situ were (4.38 ohm.m) and laboratory was (2.47 ohm.m) and when using the vane shear strength method, in-situ was (23 kPA) and laboratory was (5 kPA). This study implies that the peat soil of the study area can be categorized as texture (soft loamy soil) and it is suitable for agriculture instead of construction. The relationship established between Wenner four-point probes and vane shear method can be beneficial for ground engineering design to enhance investigation on site suitability. Future work on DUALEM-421 technique should be emphasised for better subsurface exploration accuracy and resolve peat depth for an in-situ test.

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