Second Paper: Some Aspects of the Design and Operation of the Three-Wheeled Road Roller

1966 ◽  
Vol 181 (1) ◽  
pp. 91-109
Author(s):  
F. H. Wass
Keyword(s):  
Torque Converter ◽  
Hydraulic Systems ◽  
Engine Torque ◽  
The Road ◽  
Additional Equipment ◽  
Recent Developments ◽  
Hydrostatic Transmissions ◽  
Hydrostatic System ◽  
Unit Output ◽  
Finishing Processes

Following an introduction of general historic nature dealing with the evolution of the modern road roller from the first practicable steam roller of 100 years ago, the paper is confined generally to an examination of the mechanical engineering content and operational requirements of this item of engineering plant universally employed in today's surface consolidation, compaction and finishing processes. The mechanical constitution of the road roller is examined with particular reference to recent developments in design concerning clutches, mechanical, hydrokinetic and hydrostatic transmissions, steering, brakes, bearings and hydraulic systems, all of which are in close accord with modern automotive design practice. Curves illustrate the basic co-ordination requirements of engine/torque converter combination, the torque converter and hydrostatic unit output performance characteristics and vehicle road performance (gradient/ mile/h) with the mechanical ‘stepped’ transmission, the overlapping torque converter transmission and infinite ratio ‘stepless’ hydrostatic system. Additional equipment fitted to the roller for performing operations other than surface rolling is also considered together with features designed to produce maximum operational efficiency. Modern design trends to satisfy present-day demands of maximum machine utilization with minimum servicing and maintenance ‘down-times’ are considered with particular reference to lubrication and accessibility for servicing. Conclusions to past and present are given in the author's views on probable future trends in design and construction.

Green Synthesized Nanomaterials as Theranostic Platforms for Cancer Treatment: Principles, Challenges and the Road Ahead

2019 ◽  
Vol 26 (8) ◽  
pp. 1311-1327 ◽  
Author(s):  
Pala Rajasekharreddy ◽  
Chao Huang ◽  
Siddhardha Busi ◽  
Jobina Rajkumari ◽  
Ming-Hong Tai ◽  
...  
Keyword(s):  
Nanoparticle Synthesis ◽  
Research Field ◽  
Synthesis Methods ◽  
Synthetic Approach ◽  
Future Directions ◽  
The Road ◽  
New Methods ◽  
Recent Developments ◽  
Theranostic Applications ◽  
Insight Into

With the emergence of nanotechnology, new methods have been developed for engineering various nanoparticles for biomedical applications. Nanotheranostics is a burgeoning research field with tremendous prospects for the improvement of diagnosis and treatment of various cancers. However, the development of biocompatible and efficient drug/gene delivery theranostic systems still remains a challenge. Green synthetic approach of nanoparticles with low capital and operating expenses, reduced environmental pollution and better biocompatibility and stability is a latest and novel field, which is advantageous over chemical or physical nanoparticle synthesis methods. In this article, we summarize the recent research progresses related to green synthesized nanoparticles for cancer theranostic applications, and we also conclude with a look at the current challenges and insight into the future directions based on recent developments in these areas.

scholarly journals Empowering Advanced Driver-Assistance Systems from Topological Data Analysis

Mathematics ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 634
Author(s):  
Tarek Frahi ◽  
Francisco Chinesta ◽  
Antonio Falcó ◽  
Alberto Badias ◽  
Elias Cueto ◽  
...  
Keyword(s):  
Data Analysis ◽  
The State ◽  
Sensor Data ◽  
Topological Data Analysis ◽  
Motion Sensors ◽  
Driver Assistance Systems ◽  
The Road ◽  
Topological Features ◽  
Recent Developments ◽  
Topological Data

We are interested in evaluating the state of drivers to determine whether they are attentive to the road or not by using motion sensor data collected from car driving experiments. That is, our goal is to design a predictive model that can estimate the state of drivers given the data collected from motion sensors. For that purpose, we leverage recent developments in topological data analysis (TDA) to analyze and transform the data coming from sensor time series and build a machine learning model based on the topological features extracted with the TDA. We provide some experiments showing that our model proves to be accurate in the identification of the state of the user, predicting whether they are relaxed or tense.

scholarly journals On the road to consistent Type Ia supernova explosion models

2006 ◽  
Vol 2 (14) ◽  
pp. 308-309
Author(s):  
Friedrich K. Röpke
Keyword(s):  
Three Dimensional ◽  
Supernova Explosion ◽  
The Road ◽  
Type Ia Supernova ◽  
Type Ia ◽  
Recent Developments ◽  
Consistent Picture ◽  
On The Road ◽  
Distance Indicators ◽  
Three Dimensional Simulations

AbstractKeeping up with ever more detailed observations, Type Ia supernova (SN Ia) explosion models have seen a brisk development over the past years. The aim is to construct a self-consistent picture of the physical processes in order to gain the predictive power necessary to answer questions arising from the application of SNe Ia as cosmological distance indicators. We review recent developments in modeling these objects focusing on three-dimensional simulations.

scholarly journals Review of Superfinishing by the Magnetic Abrasive Finishing Process

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Lida Heng ◽  
Yon Jig Kim ◽  
Sang Don Mun
Keyword(s):  
High Surface ◽  
Processing Parameters ◽  
Engineering Industry ◽  
Advanced Materials ◽  
Surface Finishing ◽  
Magnetic Abrasive Finishing ◽  
Surface Finishes ◽  
Abrasive Finishing ◽  
Recent Developments ◽  
Finishing Processes

AbstractRecent developments in the engineering industry have created a demand for advanced materials with superior mechanical properties and high-quality surface finishes. Some of the conventional finishing methods such as lapping, grinding, honing, and polishing are now being replaced by non-conventional finishing processes. Magnetic Abrasive Finishing (MAF) is a non-conventional superfinishing process in which magnetic abrasive particles interact with a magnetic field in the finishing zone to remove materials to achieve very high surface finishing and deburring simultaneously. In this review paper, the working principles, processing parameters, and current limitations for the MAF process are examined via reviewing important work in the literature. Additionally, future developments of the MAF process are discussed.

scholarly journals Brake systems: a mind of their own

2021 ◽  
pp. 27-34
Author(s):  
Michael Ellims
Keyword(s):  
Failure Modes ◽  
Electronic Control ◽  
Hydraulic Systems ◽  
Control Software ◽  
The Road ◽  
Current Production ◽  
On The Road ◽  
High Level ◽  
Electronic Sensors ◽  
Systems Failure

Brake systems fitted to current production vehicles are not the relativity straightforward hydraulic systems that many people expect. Rather they have evolved into complex systems which are on their own deliberately capable of affecting the behaviour of a vehicle. Crucially they depend on computers, software and electronic sensors to allow them to form a model of how the vehicle is expected to behave on the road and how it is actually behaving. Like any artefact they can, and do fail. This paper provides a high-level overview of the braking systems currently in place, how these systems act and present some examples of how they have failed in practice. Index words: vehicles; vehicle electronics; electronic control; software; brake systems; failure modes

scholarly journals Chemokines as Therapeutic Targets in Cardiovascular Disease

2019 ◽  
Vol 39 (4) ◽  
pp. 583-592 ◽  
Author(s):  
Heidi Noels ◽  
Christian Weber ◽  
Rory R. Koenen
Keyword(s):  
Cardiovascular Disease ◽  
Clinical Manifestations ◽  
Therapeutic Targets ◽  
Drug Approval ◽  
Atherosclerotic Cardiovascular Disease ◽  
Therapeutic Approaches ◽  
The Road ◽  
Recent Developments ◽  
The Cantos ◽  
Underlying Inflammation

With the incidence and impact of atherosclerotic cardiovascular disease and its clinical manifestations still rising, therapeutic options that target the causal mechanisms of this disorder are highly desired. Since the CANTOS trial (Canakinumab Antiinflammatory Thrombosis Outcome Study) has demonstrated that lowering inflammation can be beneficial, focusing on mechanisms underlying inflammation, for example, leukocyte recruitment, is feasible. Being key orchestrators of leukocyte trafficking, chemokines have not lost their attractiveness as therapeutic targets, despite the difficult road to drug approval thus far. Still, innovative therapeutic approaches are being developed, paving the road towards the first chemokine-based therapeutic against inflammation. In this overview, recent developments for chemokines and for the chemokine-like factor MIF (macrophage migration inhibitory factor) will be discussed.

A new chapter in the UN climate change negotiations? First steps under the Durban Platform for Enhanced Action

Climate Law ◽  
2012 ◽  
Vol 3 (2) ◽  
pp. 181-189 ◽  
Author(s):  
Kati Kulovesi
Keyword(s):  
Climate Change ◽  
Developing Countries ◽  
Working Group ◽  
Ad Hoc ◽  
Climate Change Negotiations ◽  
Assessment Report ◽  
The Road ◽  
Public Pressure ◽  
Recent Developments

This article discusses recent developments in the UN climate change negotiations in light of the Bonn Climate Change Conference in May 2012. It highlights the Bonn meeting as the first opportunity to assess the influence on the UNFCCC process of the Durban Package and the new Ad Hoc Working Group on the Durban Platform for Enhanced Action. It argues that the main impression from the Bonn meeting is that the Durban outcome has indeed affected the dynamics of the UNFCCC negotiations and holds potential for far-reaching changes. Provided that all goes well, the combination of new bodies and processes created in Cancun and Durban, the forthcoming Fifth Assessment Report by the IPCC, and the likely public pressure following its release could open a new chapter in the UNFCCC process and lead to a more effective multilateral response to the climate change challenge. Still, the combination of a palpable rift within G-77/China and traditional divides between developed and developing countries on issues such as finance and technology means that the road ahead is likely to be a difficult one.

Special Issue on Precision Surface Finishing

2019 ◽  
Vol 13 (2) ◽  
pp. 173-173
Author(s):  
Fang-Jung Shiou ◽  
Toshiyuki Enomoto
Keyword(s):  
Narrow Channel ◽  
High Energy ◽  
Surface Finishing ◽  
Special Issue ◽  
Surface Machining ◽  
Energy Beam ◽  
Recent Developments ◽  
Ultrasonic Assisted ◽  
Single Crystal Sic ◽  
Finishing Processes

Precision surface finishing plays an important role in product quality owing to its direct effects on product appearance. As a result, automated precision surface finishing processes (APSFPs) are key technologies for industrial products and molds for forming and shaping processes. APSFPs can be divided into three main categories, namely, mechanical processes, electrochemical processes, and high energy beam processes. The objective of this special issue is to collect the cutting-edge research works focused on APSFPs. This issue includes 11 papers on APSFPs covering the following topics: ===danraku===- Review of ultraprecision surface finishing processes. ===danraku===- Ultraprecision surface machining and finishing with compensated feeding mechanisms. ===danraku===- Ultrasonic assisted cutting of unidirectional wetting surfaces and polishing of mold steels. ===danraku===- Vibration-assisted polishing of glass lenses. ===danraku===- Magnetic-assisted polishing of mirror surfaces. ===danraku===- Chemical-mechanical polishing of single-crystal SiC and GaN wafers. ===danraku===- Direct transfer of smoothing Au surfaces. ===danraku===- Plasma surface finishing of narrow channel walls of X-ray crystal monochromators. ===danraku===- Analysis and characterization of finished surfaces. It is expected that this issue will be helpful for readers to understand the recent developments in APSFPs and will lead to further research on APSFPs. We deeply appreciate the contributions of all authors and thank the reviewers for their incisive efforts.

British Library document supply – a fork in the road

2010 ◽  
Vol 38 (1) ◽  
pp. 12-16 ◽  
Author(s):  
Andy Appleyard
Keyword(s):  
Design Methodology ◽  
British Library ◽  
Improvement Strategy ◽  
Content Type ◽  
The Road ◽  
Current Thinking ◽  
Recent Developments ◽  
Insight Into ◽  
Future Plans

PurposeThis paper seeks to provide an overview of recent developments within the British Library's document supply service and offer an insight into future plans.Design/methodology/approachThe paper takes the form of a general review.FindingsThe British Library Document Supply Centre (BLDSC) has made tremendous gains in optimising the service in its current guise. As with similar organisations, challenges are presenting themselves that require a completely new look at the way the business model is designed. Although the long‐term plan is not completely formed, this paper aims to give an insight into current thinking.Originality/valueThe paper spells out the improvement strategy that the BL has adopted for document supply in the light of the worldwide decline.

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