scholarly journals Design and Analysis of Ejection in Sub Wheel Assembly

2020 ◽  
Vol 22 (1) ◽  
pp. 59-64
Author(s):  
S. Rajendran ◽  
S. M. Abish ◽  
M. Sakthivel ◽  
P. Sandeep ◽  
S. Rahul Krishna
Keyword(s):  
Hydraulic System ◽  
Heavy Weight ◽  
Remote Areas ◽  
The Road ◽  
Difficult Terrain ◽  
User Friendly ◽  
System Power

AbstractTraveling in remote areas at nights is very risky and tire getting puncture at that time is dangerous. To avoid any of this complications a sub wheel system is installed in the vehicle. Sub wheels helps to go to required destination and change the puncture wheel. The tires used in this system are mold tires so they don’t get affected by the road conditions. The sub wheel is operated by means of a hydraulic system. Power for this sub wheel is provided from the engine placed in the back of the vehicle. This is system is very useful heavy weight vehicle which travel in difficult terrain (army vehicles). The height of the car is increased so that Sub wheels won’t affect the chassis or the engine. This type of system is used in le24race but they only use hydraulic system to lift the car. The advantage of this system is its user friendly and effective to use. By pressing a button required sub wheel comes down and start to function. By using CATIA a diagram of this system is drawn to check it’s various forces acting on it.

Optimales Layout einer Walderschliessung

2016 ◽  
Vol 167 (5) ◽  
pp. 294-301
Author(s):  
Leo Bont
Keyword(s):  
Road Network ◽  
Spatial Arrangement ◽  
Problem Situation ◽  
Optimal Layout ◽  
Forest Road ◽  
The Road ◽  
Network Cost ◽  
User Friendly ◽  
Short Time

Optimal layout of a forest road network The road network is the backbone of forest management. When creating or redesigning a forest road network, one important question is how to shape the layout, this means to fix the spatial arrangement and the dimensioning standard of the roads. We consider two kinds of layout problems. First, new forest road network in an area without any such development yet, and second, redesign of existing road network for actual requirements. For each problem situation, we will present a method that allows to detect automatically the optimal road and harvesting layout. The method aims to identify a road network that concurrently minimizes the harvesting cost, the road network cost (construction and maintenance) and the hauling cost over the entire life cycle. Ecological issues can be considered as well. The method will be presented and discussed with the help of two case studies. The main benefit of the application of optimization tools consists in an objective-based planning, which allows to check and compare different scenarios and objectives within a short time. The responses coming from the case study regions were highly positive: practitioners suggest to make those methods a standard practice and to further develop the prototype to a user-friendly expert software.

scholarly journals TO THE QUESTION OF THE CHOICE OF MOBILE COMPOSITION IN THE BRT SYSTEM

2021 ◽  
Vol 1 (48) ◽  
pp. 257-269
Author(s):  
Poliakov V ◽  
◽  
Yaschenko D ◽  
Sharai S ◽  
◽  
...  
Keyword(s):  
Economic Feasibility ◽  
Maximum Length ◽  
Rolling Stock ◽  
Total Power ◽  
Motor Transport ◽  
The Road ◽  
Passenger Traffic ◽  
System Use ◽  
On The Road ◽  
System Power

In article the question at the choice of the rolling stock of passenger motor transport in the BRT system which provides movements of buses on specially allocated and often obgorodzheny strips, that is its full isolation on the road from other means of transport is considered. For increase in passenger capacity in the BRT system use three-link buses and trolleybuses. Along with indisputable advantages of three-link buses and trolleybuses also shortcomings - the worst maneuverability and stability of the movement in comparison with two-link are inherent in them. Besides, the efficiency of operation of such cars is provided with a passenger traffic which during the day can change many times. Therefore the road train as a part of two (or three) the buses or trolleybuses working in connection, і which passenger capacity similar to the jointed buses and trolleybuses can become perspective. In rush hours the bus train, and in interpeak the period - each bus separately works (the possible parking of one bus at allocated to the platform). In view of restriction of the maximum length of the bus train at the level of 24.26 m, as buses as making road trains, we will accept the 8th meter buses MAZ 206. Passenger capacity of such bus is 72 passenger, the power of the traction engine - 160 kW. The expediency of use of three-link hook-on road train is proved by the conducted researches that MAZ 206 with a total length up to 26 m and with a passenger capacity up to 220 passengers in the BRT system consists of three same buses. It is shown that the total power of engines is necessary for the movement of such bus train with a speed of 25 m/s has to make 300 kW while for one bus at the movement with the same speed it has to be at the level of 135 kW. It demonstrates about economic feasibility of use of the bus train from three buses working in connection because for their movement in all range of speeds there is enough power of two engines, that is one of buses can be used as the passive trailer that will lead to improvement of fuel profitability of the bus train. It is established that on maneuverability indicators three links the hook-on road train considerably exceeds three links pivotally - the jointed bus. So, the dimensional lane of the hook-on bus train at execution of the most typical maneuvers by it during the work on a city route does not exceed 3.9 and 4.1 m at turns respectively on 900 and 1800 that it is much less, than for three links pivotally the jointed bus 24 m long respectively of 6.8 and 8.2 m. KEYWORDS: THREE-UNIT THE ROAD TRAIN, THE BUS, PIVOTALLY-THE JOINTED BUS, THE BRT SYSTEM, POWER, MANEUVERABILITY, A TRAJECTORY, OVERALL STRIP

scholarly journals Recruitment and Trial-Finding Apps—Time for Rules of the Road

2019 ◽  
Vol 111 (9) ◽  
pp. 882-886
Author(s):  
Stephanie R Morain ◽  
Emily A Largent
Keyword(s):  
Conflicts Of Interest ◽  
Traditional Approach ◽  
Mobile Apps ◽  
Patient Centeredness ◽  
Ethical Concerns ◽  
The Road ◽  
Related Information ◽  
Ethical Acceptability ◽  
Privacy And Confidentiality ◽  
User Friendly

Abstract The problem of insufficient recruitment to clinical oncology trials is well known. Some stakeholders view mobile apps as a solution with the potential to make recruitment more efficient, lower trial costs, support patient-centeredness, and accelerate treatment advances. Recruitment and trial-finding apps seek to disrupt the traditional approach to recruitment in several ways, including aggregating information about ongoing trials and presenting it in a user-friendly format, curating information to tailor search results to prospective participants’ interests, facilitating direct contact between prospective participants and trial sites, and, in at least one case, analyzing individuals’ tumor samples and medical records to provide tailored recommendations both for approved treatments and clinical trials. Although recruitment and trial-finding apps respond to a real need, they raise ethical concerns. Here, we outline six domains of ethical concern: review of recruitment materials, privacy and confidentiality, constrained choice and conflicts of interest, therapeutic misbranding, payment for accessing research-related information, and disruptions to care and research. We offer several suggestions and encourage additional dialogue to improve the ethical acceptability of these apps because, as third parties increasingly promise to revolutionize clinical trial recruitment by connecting patients and investigators via recruitment and trial-finding apps, we need some rules of the road.

Hydraulic System Simulation of Heavy Horizontal Directional Drilling Head

2011 ◽  
Vol 287-290 ◽  
pp. 428-431 ◽  
Author(s):  
Ye Fei ◽  
Shu Yang Cong ◽  
Bin Bian
Keyword(s):  
Hydraulic System ◽  
Point Of View ◽  
Utilization Rate ◽  
Soil Conditions ◽  
Control Parameters ◽  
Directional Drilling ◽  
Horizontal Directional Drilling ◽  
Working Mechanism ◽  
Operating Modes ◽  
System Power

According to the features of heavy horizontal directional drill hydraulic system, power head hydraulic system which is the main working mechanism of the 280t horizontal directional drilling is modeled and simulated base on Amesim. On that basis, we adjust working characteristics of this model and make the point of view that feedback control parameters which is the hydraulic system of heavy drill should be adjusted according to the soil conditions. So that it can enhance the utilization rate of the machine power and drilling efficiency in different operating modes.

scholarly journals (A99) Remote Access and Extrication, the Haiti Experience

2011 ◽  
Vol 26 (S1) ◽  
pp. s27-s27
Author(s):  
L. Paladino ◽  
M. Lucchesi
Keyword(s):  
Rural Areas ◽  
Local Community ◽  
National Level ◽  
Poverty Line ◽  
Western Hemisphere ◽  
Remote Access ◽  
Disaster Plan ◽  
Remote Areas ◽  
Rural And Remote Areas ◽  
Difficult Terrain

IntroductionThe January 12 2010 7.0 magnitude earthquake's epicenter hit just 10 miles west of Port-au-Prince and its 2 million inhabitants at 4:53 pm. Estimates of dead 222,517 at the time of writing, with thousands missing and hundreds of thousands living in tent cities. Haiti is the poorest country in the Western Hemisphere with approximately 80% of the population living under the poverty line. There is a lack of seismic risk perception and planning at the national level. As a result in many areas there are no, or poorly followed, road, highway or bridge building codes.NeedAlthough assistance arrived to major ports and cities from all corners of the globe, access from rural and remote areas to centralized hospitals remained difficult. Our group, a mobile medical team able to negotiate difficult terrain by foot with vehicle support in close proximity, deployed to these remote areas. EMS systems were poor in rural areas prior to the earthquake and now are nonexistent, in areas where no access to phones or even addresses (tent cities) to respond to. We found many injured without access to transportation even a month after the earthquake. No family or friends had access to vehicles to transport them. Many knew help was available, but did not know where or how to access. They waited in situ for help not knowing if it was coming. Limb threatening injuries were left to get necrotic and infected, no doubt adding to the morbidity and mortality. Our groups identified patients requiring transport and arranged for drivers, many times using paid locals from cities.Call for future actionImplementation of a disaster plan for International NGOs to provide organized EMS transport for remote victims without access. Coordination with local community leaders and OCHA to identify areas in need of this service.

The Hydraulic System Improvement of Copper Ingot Hot Rolling Equipment Based on Energy-Saving

2013 ◽  
Vol 364 ◽  
pp. 33-36
Author(s):  
Jian Jun Wang ◽  
Su Lan Hao ◽  
Lu Pan
Keyword(s):  
Energy Loss ◽  
Energy Saving ◽  
Hot Rolling ◽  
Hydraulic System ◽  
Power Efficient ◽  
System Improvement ◽  
Hot Rolled ◽  
And Control ◽  
System Power ◽  
Copper Ingot

In the design of hydraulic system, it is not only satisfied the transmission and control, but also needed to consider how to use the system power efficient and reliable. For a workshop of hot-rolled copper ingot production line hydraulic system, through the analysis of energy loss of hydraulic system, improved the hydraulic system of equipment for the purpose of energy-saving, and solved the problem in the process of transformation, achieved the purpose of energy-saving. These can provide reference for the energy-saving design and improvement of hydraulic system.

scholarly journals Gotta CAPTCHA ’Em All: A Survey of 20 Years of the Human-or-computer Dilemma

2022 ◽  
Vol 54 (9) ◽  
pp. 1-33
Author(s):  
Meriem Guerar ◽  
Luca Verderame ◽  
Mauro Migliardi ◽  
Francesco Palmieri ◽  
Alessio Merlo
Keyword(s):  
Financial Services ◽  
Credit Card ◽  
Defense Mechanisms ◽  
Denial Of Service ◽  
Turing Test ◽  
Point Of View ◽  
The Road ◽  
Current State ◽  
Challenges And Opportunities ◽  
User Friendly

A recent study has found that malicious bots generated nearly a quarter of overall website traffic in 2019 [102]. These malicious bots perform activities such as price and content scraping, account creation and takeover, credit card fraud, denial of service, and so on. Thus, they represent a serious threat to all businesses in general, but are especially troublesome for e-commerce, travel, and financial services. One of the most common defense mechanisms against bots abusing online services is the introduction of Completely Automated Public Turing test to tell Computers and Humans Apart (CAPTCHA), so it is extremely important to understand which CAPTCHA schemes have been designed and their actual effectiveness against the ever-evolving bots. To this end, this work provides an overview of the current state-of-the-art in the field of CAPTCHA schemes and defines a new classification that includes all the emerging schemes. In addition, for each identified CAPTCHA category, the most successful attack methods are summarized by also describing how CAPTCHA schemes evolved to resist bot attacks, and discussing the limitations of different CAPTCHA schemes from the security, usability, and compatibility point of view. Finally, an assessment of the open issues, challenges, and opportunities for further study is provided, paving the road toward the design of the next-generation secure and user-friendly CAPTCHA schemes.

scholarly journals Semantic micro-contributions with decentralized nanopublication services

2021 ◽  
Vol 7 ◽  
pp. e387
Author(s):  
Tobias Kuhn ◽  
Ruben Taelman ◽  
Vincent Emonet ◽  
Haris Antonatos ◽  
Stian Soiland-Reyes ◽  
...  
Keyword(s):  
Linked Data ◽  
Prior Experience ◽  
Data Publishing ◽  
Efficient Manner ◽  
Heavy Weight ◽  
Weight One ◽  
Central Bottleneck ◽  
User Friendly

While the publication of Linked Data has become increasingly common, the process tends to be a relatively complicated and heavy-weight one. Linked Data is typically published by centralized entities in the form of larger dataset releases, which has the downside that there is a central bottleneck in the form of the organization or individual responsible for the releases. Moreover, certain kinds of data entries, in particular those with subjective or original content, currently do not fit into any existing dataset and are therefore more difficult to publish. To address these problems, we present here an approach to use nanopublications and a decentralized network of services to allow users to directly publish small Linked Data statements through a simple and user-friendly interface, called Nanobench, powered by semantic templates that are themselves published as nanopublications. The published nanopublications are cryptographically verifiable and can be queried through a redundant and decentralized network of services, based on the grlc API generator and a new quad extension of Triple Pattern Fragments. We show here that these two kinds of services are complementary and together allow us to query nanopublications in a reliable and efficient manner. We also show that Nanobench makes it indeed very easy for users to publish Linked Data statements, even for those who have no prior experience in Linked Data publishing.

THE ISSUE ASSESSMENT OF ROAD TRANSPORT IN RUSSIA

2015 ◽  
Vol 2 (2) ◽  
pp. 641-646
Author(s):  
Кузьмина ◽  
N. Kuzmina ◽  
Анциферова ◽  
V. Antsiferova ◽  
Ягодкин ◽  
...  
Keyword(s):  
Road Safety ◽  
Road Transport ◽  
Remote Areas ◽  
Low Level ◽  
The Road ◽  
Transport Services ◽  
Current State ◽  
Technical Production ◽  
Vehicle Fleet ◽  
High Level

The current state of the vehicle fleet in the aspects of road safety, the low level of develop-ment of the road network, a high level of harmful impact on the environment, lack of access to transport services in remote areas, the low-level of technical production base, ever-increasing cost of fuel and lubricants

scholarly journals A logical specification language for ontologies in the system “Binary Model of Knowledge”

2018 ◽  
Vol 8 (1) ◽  
pp. 132-139
Author(s):  
Gerald Plesniewicz ◽  
Baurzhan Karabekov ◽  
Dmitry Masherov
Keyword(s):  
Specification Language ◽  
Heavy Weight ◽  
Binary Model ◽  
Logical Specification ◽  
User Friendly

Abstract We describe the language LLS-1 for logical specifying ontologies written in “Binary Model of Knowledge” (BMK). BMK is the system intended for specifying heavy-weight ontologies by means of conceptual-type languages. The language LLS-1 has a user-friendly syntax in style of the Manchester syntax for OWL. We also determine a deduction method for LLS-1.

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