A New Approach to Pavement Design in Sweden: New Swedish Road Design Manual

2021 ◽  
pp. 365-372
Author(s):  
Winnerholt Tomas
Keyword(s):  
Pavement Design ◽  
New Approach ◽  
Road Design

scholarly journals Stadium Norm and Douglas-Rachford Splitting: A New Approach to Road Design Optimization

2016 ◽  
Vol 64 (1) ◽  
pp. 201-218 ◽  
Author(s):  
Heinz H. Bauschke ◽  
Valentin R. Koch ◽  
Hung M. Phan
Keyword(s):  
Design Optimization ◽  
New Approach ◽  
Road Design

scholarly journals PERANCANGAN PERKERASAN JALAN LINGKAR KOTA KABUPATEN WONOGIRI

Jurnal HPJI ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 119-128
Author(s):  
Alfiani Yogaturida Isnaini ◽  
Latif Budi Suparma ◽  
Suryo Hapsoro Tri Utomo
Keyword(s):  
Design Method ◽  
Concrete Slab ◽  
Pavement Design ◽  
Slab Thickness ◽  
Ring Road ◽  
Road Pavement ◽  
Road Design ◽  
The Difference ◽  
Aashto 1993 ◽  
Pavement Thickness

Abstract The city ring road of Wonogiri Regency should be constructed based on a pavement design which ensure safety, convenience, but still economical. For this reason, a road pavement design method is needed to be applied in this road design process. The MDP 2017 and AASHTO 1993 road pavement design methods are methods that are often used in Indonesia to design concrete slab for pavement. This study uses both methods to determine the thickness of the concrete slab on the pavement of the Wonogiri Regency City Ring Road. The results of this study indicate that the concrete slab thickness for pavement calculated by MDP 2017 is 31 cm, while that calculated with AASHTO 1993 is 32.25 cm. The difference in the thickness of the concrete plates obtained from these two methods is relatively small. Keywords: road pavement, pavement design, concrete slab, road pavement thickness  Abstrak Jalan lingkar kota Kabupaten Wonogiri harus dibangun berdasarkan rancangan perkerasan jalan yang aman, nyaman, namun tetap ekonomis. Untuk itu, diperlukan suatu metode perancangan perkerasan jalan yang tepat untuk diterapkan pada proses perancangan jalan ini. Metode-metode perancangan perkerasan jalan MDP 2017 dan AASHTO 1993 merupakan metode-metode yang sering digunakan di Indonesia untuk perancangan tebal pelat beton untuk perkerasan jalan. Studi ini menggunakan kedua metode tersebut untuk menentukan tebal pelat beton pada perkerasan jalan lingkar kota Kabupaten Wonogiri. Hasil studi ini menunjukkan bahwa tebal pelat beton untuk perkerasan jalan yang dihitung dengan MDP 2017 adalah 31 cm, sedangkan yang dihitung dengan AASHTO 1993 adalah 32,25 cm. Beda tebal pelat beton yang diperoleh dari kedua metode ini relatif kecil. Kata-kata kunci: perkerasan jalan, perancangan perkerasan, pelat beton, tebal perkerasan jalan

scholarly journals Investigation of Subgrade Particles Acceleration Due To Dynamic Loading

2017 ◽  
Vol 6 (3) ◽  
pp. 97-103
Author(s):  
Rini Kusumawardani
Keyword(s):  
Natural Frequency ◽  
Dynamic Loading ◽  
Principal Direction ◽  
Flexible Pavement ◽  
Concrete Pavement ◽  
Pavement Design ◽  
Comprehensive Understanding ◽  
New Approach

Detail investigation on flexible pavement due to of vehicles traversed was presented in this paper. The behaviour of subgrade particles acceleration on flexible pavement are investigated and is explained in order to obtain the comprehensive understanding about pavement. Investigation were conducted in the highway which have a yearly higway construction problems. The data collected represented three axis main principal direction (x, y and z axis) movements. The main objectives of this work is to evaluating the effects of vehicle traverse on the pavement to several parameter, such as acceleration, thickness of pavement and natural frequency of subgrade. The results are useful as a new approach of pavement design as well as flexible or concrete pavement  by considering some parameters analyzed. 

scholarly journals A Review of Software in Flexible Pavement Design

2021 ◽  
Vol 6 (2) ◽  
pp. p27
Author(s):  
Laila Al Maqbali ◽  
Osama Ragab
Keyword(s):  
Flexible Pavement ◽  
Pavement Design ◽  
Software System ◽  
Commercial Software ◽  
Road Design

This review gives an overview of some free and commercial software which used in road design such as AASHTOW Software, PAVERS Software, CIRCLY Software, PAKPAVE software, IITPAVE Software, KENPAVE software, PaveXpress software Win PAS 12 software, Street Pave, MXROAD Suite, and Infra works software. Using a software system in design will solves the problems of design and analyzing on-road and also eliminate road failure.

The O–C diagrams of minor planets − a new approach to modelling the rotation

1999 ◽  
Vol 173 ◽  
pp. 185-188
Author(s):  
Gy. Szabó ◽  
K. Sárneczky ◽  
L.L. Kiss
Keyword(s):  
Error Analysis ◽  
Time Dependence ◽  
Theoretical Work ◽  
Minor Planet ◽  
Minor Planets ◽  
New Approach ◽  
Preliminary Results ◽  
Ccd Observations

AbstractA widely used tool in studying quasi-monoperiodic processes is the O–C diagram. This paper deals with the application of this diagram in minor planet studies. The main difference between our approach and the classical O–C diagram is that we transform the epoch (=time) dependence into the geocentric longitude domain. We outline a rotation modelling using this modified O–C and illustrate the abilities with detailed error analysis. The primary assumption, that the monotonity and the shape of this diagram is (almost) independent of the geometry of the asteroids is discussed and tested. The monotonity enables an unambiguous distinction between the prograde and retrograde rotation, thus the four-fold (or in some cases the two-fold) ambiguities can be avoided. This turned out to be the main advantage of the O–C examination. As an extension to the theoretical work, we present some preliminary results on 1727 Mette based on new CCD observations.

A New Approach to the Demonstration of Oxidase-Localization Using Tannic Acid Or Catechin

1973 ◽  
Vol 31 ◽  
pp. 698-699
Author(s):  
V. Mizuhira ◽  
Y. Futaesaku
Keyword(s):  
Cross Section ◽  
Tannic Acid ◽  
Elastic Fiber ◽  
The Other ◽  
New Approach ◽  
Tissue Block ◽  
Active Reaction ◽  
The Cross

Previously we reported that tannic acid is a very effective fixative for proteins including polypeptides. Especially, in the cross section of microtubules, thirteen submits in A-tubule and eleven in B-tubule could be observed very clearly. An elastic fiber could be demonstrated very clearly, as an electron opaque, homogeneous fiber. However, tannic acid did not penetrate into the deep portion of the tissue-block. So we tried Catechin. This shows almost the same chemical natures as that of proteins, as tannic acid. Moreover, we thought that catechin should have two active-reaction sites, one is phenol,and the other is catechole. Catechole site should react with osmium, to make Os- black. Phenol-site should react with peroxidase existing perhydroxide.

Processing Immunoperoxidase Labeled Cell Monolayers and Cryostat Sesctions For Electron Microscopy

1985 ◽  
Vol 43 ◽  
pp. 714-715
Author(s):  
K. Chien ◽  
R. Van de Velde ◽  
I.P. Shintaku ◽  
A.F. Sassoon
Keyword(s):  
Cell Monolayer ◽  
Cell Types ◽  
Surface Antigens ◽  
Immunoperoxidase Method ◽  
Reaction Step ◽  
Hot Plate ◽  
Air Drying ◽  
New Approach ◽  
Cell Monolayers ◽  
Glass Slides

Immunoelectron microscopy of neoplastic lymphoma cells is valuable for precise localization of surface antigens and identification of cell types. We have developed a new approach in which the immunohistochemical staining can be evaluated prior to embedding for EM and desired area subsequently selected for ultrathin sectioning.A freshly prepared lymphoma cell suspension is spun onto polylysine hydrobromide- coated glass slides by cytocentrifugation and immediately fixed without air drying in polylysine paraformaldehyde (PLP) fixative. After rinsing in PBS, slides are stained by a 3-step immunoperoxidase method. Cell monolayer is then fixed in buffered 3% glutaraldehyde prior to DAB reaction. After the DAB reaction step, wet monolayers can be examined under LM for presence of brown reaction product and selected monolayers then processed by routine methods for EM and embedded with the Chien Re-embedding Mold. After the polymerization, the epoxy blocks are easily separated from the glass slides by heatingon a 100°C hot plate for 20 seconds.

TEM study of a biofilm on copper corrosion

1996 ◽  
Vol 54 ◽  
pp. 220-221
Author(s):  
W. A. Chiou ◽  
N. Kohyama ◽  
B. Little ◽  
P. Wagner ◽  
M. Meshii
Keyword(s):  
Marine Bacterium ◽  
Culture Medium ◽  
Copper Alloys ◽  
Pure Copper ◽  
Localized Corrosion ◽  
Natural Seawater ◽  
Copper Corrosion ◽  
New Approach ◽  
The Past ◽  
Copper Tolerant

The corrosion of copper and copper alloys in a marine environment is of great concern because of their widespread use in heat exchangers and steam condensers in which natural seawater is the coolant. It has become increasingly evident that microorganisms play an important role in the corrosion of a number of metals and alloys under a variety of environments. For the past 15 years the use of SEM has proven to be useful in studying biofilms and spatial relationships between bacteria and localized corrosion of metals. Little information, however, has been obtained using TEM capitalizing on its higher spacial resolution and the transmission observation of interfaces. The research presented herein is the first step of this new approach in studying the corrosion with biological influence in pure copper.Commercially produced copper (Cu, 99%) foils of approximately 120 μm thick exposed to a copper-tolerant marine bacterium, Oceanospirillum, and an abiotic culture medium were subsampled (1 cm × 1 cm) for this study along with unexposed control samples.

High resolution at low voltage: A new approach

1989 ◽  
Vol 47 ◽  
pp. 76-77
Author(s):  
Arthur V. Jones
Keyword(s):  
Low Voltage ◽  
Emission Sources ◽  
New Approach ◽  
Design Concepts ◽  
Probe Diameter ◽  
Low Voltage Operation ◽  
Sufficient Intensity ◽  
Electron Microscopes ◽  
Scanning Electron Microscopes ◽  
Immersion Type

With the introduction of field-emission sources and “immersion-type” objective lenses, the resolution obtainable with modern scanning electron microscopes is approaching that obtainable in STEM and TEM-but only with specific types of specimens. Bulk specimens still suffer from the restrictions imposed by internal scattering and the need to be conducting. Advances in coating techniques have largely overcome these problems but for a sizeable body of specimens, the restrictions imposed by coating are unacceptable.For such specimens, low voltage operation, with its low beam penetration and freedom from charging artifacts, is the method of choice.Unfortunately the technical dificulties in producing an electron beam sufficiently small and of sufficient intensity are considerably greater at low beam energies — so much so that a radical reevaluation of convential design concepts is needed.The probe diameter is usually given by

New approach to drawing in dental anatomy

1968 ◽  
Vol 32 (3) ◽  
pp. 279-282
Author(s):  
JI Mock ◽  
JW Grenfell ◽  
WA Richter
Keyword(s):  
New Approach ◽  
Dental Anatomy
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