Dec 18, 2014

SCImago Journal and Country Rank

Search / publish / cite Scopus journal? About SCImago
Journals indexed by Scopus become a necessity in the academic world. So you need to make sure you send journal is scopus, also referred Scopus journal. If not .... journal / reference you will belittled your efforts and look messy. 
For newbies .... please to SCImago web, search engine using ELSEVIER indexed by Scopus data base.

Freely accessible at http://www.scimagojr.com/
The SCImago Journal and Country Rank portal is developed by SCImago Research Group working at three Spanish universities (Consejo Superior de Investigaciones Científicas (CSIC), University of Granada, Extremadura, Carlos III (Madrid) and Alcalá de Henares). It is named after the SCImago Journal Rank Indicator (SJR) developed by the group. The citation data used is derived from Scopus database and journal rankings are available for journals contained in the Scopus database.
The SJR indicator is calculated based on three year's citation data and attributes different weight to citations depending on the prestige of the citing journal. The prestige of a journal is estimated using PageRank algorithm in the network of journals. The prestige of a journal is transferred through the references that a journal receives from the other journals.
A detailed description of SCImago Journal Rank Indicator is available at http://www.scimagojr.com/SCImagoJournalRank.pdf.

Nov 5, 2014

Wheel Speed Measurement in Antilock Braking System (ABS)



The role of ABS is to ensure the steer-ability of the vehicle in challenging braking conditions where there is not adequate friction between the wheels and the road. ABS also minimizes the stopping distance by maximizing the braking force. ABS for each wheel of a vehicle mainly consists of an ABS sensor, an actuator, and a controller. The role of the ABS sensor is to provide the ABS controller with a good estimate of the wheel speed. The controller generates an appropriate control signal based on the speed. This signal is fed back to the actuator, which adjusts the braking force accordingly. The common technology for measuring wheel speed in ABSs is to use a magnetic WSS which is often referred to as the ABS sensor. This sensor usually consists of a rotating toothed ring (which is called the ABS ring), a permanent magnet, and a winding (which is called the pickup) that produces a voltage signal that contains the wheel speed information. The ABS ring (also called tone, trigger, or gear wheel) is an essential component of the WSS and generates the speed signal by modulating the magnetic field between the magnet and winding. The modulation frequency is directly related to the speed of the ABS ring, which is rotating with the vehicle wheel.

The importance of accurate wheel speed measurement has motivated brake manufacturers to produce accurate WSS using precision technologies. Several attempts have also been made to improve the accuracy of existing WSSs using signal-processing methods. For instance, a method was proposed in  to compensate for the mechanical inaccuracy of conventional ABS sensors. Their analysis showed that the irregularities of the tooth and gap width have the largest influence on the speed signal quality of conventional sensors. In addition to mechanical inaccuracies, the accuracy of wheel speed measurement is affected by noise. A frequency-domain least-mean-square adaptive filter was used in  to improve the wheel speed measurement. To further mitigate the effect of noise, the same author also proposed using an adaptive line enhancer algorithm to predict the response of a WSS buried in a broad-band noise . The experimental results of the aforementioned two works showed that it is necessary to further process the output of common WSSs to achieve required accuracy in practice where noise is present.

The ABS sensor has a simple and rugged design. However, the commonly used technology has several disadvantages as follows:
  •     The ABS sensor is not accurate at low speeds (lower than 5 km/h) due to very low signal-to-noise ratio .
  •     The ABS sensor, due to the size of the ABS ring, is relatively bulky compared to most sensors. Typical ABS rings have a diameter range of 44–115 mm and a width range of 6–30 mm.
  •     The ABS ring is vulnerable both to environmental factors such as rust and dirt and to operational factors such as wheel hub inspection or repair procedures.
  •     The size of the air gap between the ABS ring and the magnetic field impacts the accuracy of the sensor. This is difficult to adjust, and in some designs, the whole wheel hub has to be replaced when the air gap is unbalanced.
  •     ABS speed measurements are susceptible to mechanical faults in the wheel bearing assembly.
  •     ABS speed measurements are also susceptible to wiring faults (e.g., an open/short circuit or changes in wire resistance).

Oct 6, 2014

Import and convert CSV to Excel

There is a good tutorial on how to import CSV to Excel. Hope will help someone out there. I have this problem when someone request the data in SQL db but insist want it in .xls or .xlsx file. It is easy if you have access to the database but for those who are not familiar, cant access the db or enjoying using excel more than others this how it works. Convert CSV to Excel

Sep 23, 2014

Facebook monthly chargers starting Nov 1

I'm not sure about this update, are you?. Or is it hoax or something ?I read it in my friend's FB update. The charges is about $2.99 per month. Wow, I dont think Mark Zukerberg that stupid enough sorry to say excuse me to impose that kind of charges to the millions of users. If he charge only a single penny  per account for annual fee he can make millions within the short period of time.

I'm using facebook for almost 8 years right now, and this thing is killing my time but it make me drowsy if not attached to it. At least 3 to 4 times I need to scroll for the new update from my friends.

“After thinking long and hard about this decision, at the end of the day, we were forced to add this monthly fee,” Facebook founder and CEO Mark Zuckerberg told reporters. “If we don’t do something about our rising costs now, Facebook could cease to exist in the near future.”
“This is excellent news for Facebook stock holders,” says Wall Street analyst Dale Sackrider. “As of August this year, Facebook had a total of 1.317 billion users. If just 75% of those members pay the new monthly service fee of $3, that will mean an annual influx of cash totaling roughly $3 billion. That’s not just an increase in profits of a few dollars, that’s a game changer right there.”
 

Sep 17, 2014

Research Methodology, Research For Beginner, Introduction to Research, Research Methods Basic


This is the ideal book for the beginners who want to invloved in the research arena. I read several  books related to research method but none of them is  finished, this is due to the jargon terms that make me breathless in the middle of reading. My advice, if you plan or in due process of doing research study please read the basic book first, find the fundamentals idea is important rather than hoovering around all reading materials. You will get lost in the  middle of nowhere when you use internet. For me web serach engine is the fastest and robust way to compile what you want to find but to spend several hours reading the 1200x800 pixel size of 12" to 15" moinitor will make you exhausted and your eyes will not catch or scan any idea from the materials. The traditonal book is the best. If you can get the actual journal or articles in the library is the best option to read you materials rather than reading it infront of the LCD monitor.
Here is the front content of the book that I quote it from amazon.

Research Methods: The Basics is an accessible, user-friendly introduction to the different aspects of research theory, methods and practice. Structured in two parts, the first covering the nature of knowledge and the reasons for research, and the second the specific methods used to carry out effective research, this book covers: Structuring and planning a research project The ethical issues involved in research Different types of data and data quality Analysing and organising data to draw sound conclusions Writing up and displaying data in effective ways

Another good book for the beginners is Research Methodology A Step-by-step guide for the beginners by Kumar R.

Here is some of the basic answers that you need for the beginners
  • Research Question or Research Problem is what you want to find out about
  • Research Methodology is the path of finding answer to the research question
  • Research Objective is a kind of methods, procedure or model of research methodology to achieve best answer to your research question.
You may find a various definition of the above terms, but as you can see each of the definition contain the keyword "Research Question". So, indirectly it is clearly show the important part of the research is the research question and the liable of the question is of coz the answers to that question. Anything that drive to the answers can be considered as your methodology.

*please contact me if you want to comment/correcting/contribute. I'm just starting my journey but way behind the timeline..... godspeed.



Sep 10, 2014

Research - Aims and Objectives


Research - Aims and Objectives


A literature review produces a research question or gap in knowledge.
Our aim is to close the gap in knowledge (such as answering the research questions) which are we going to achieve by providing a contribution to knowledge.

Aims are broad statements of desired outcomes or the general intentions of the research, which 'paint the picture' of your research proposal:
·         Emphasize what is to be accomplished, not how it is to be accomplished
·         Address the long-term project outcomes, i.e. they should reflect the aspirations and expectations of the research topic (general intention, broader vision)

Objectives are the steps you are going to take to answer your research questions or a specific list of tasks needed to accomplish the goals of the project:
·         Emphasize how aims are to be accomplished
·         Must be highly focused and feasible
·         Address the more immediate project outcomes
·         Make accurate use of concepts and be sensible and precisely described
·         Usually numbered so that each objective reads as an 'individual' statement to convey your intention
(procedural, statements, hows)

Jul 11, 2014

Hard Drive Not Spin WD Blue Scorpio

Hard Drive Does Not Spin Up

One of the more commonly encountered hard drive failure symptoms is when the hard drive does not spin-up after power is applied (that is to say that the data platters inside the drive are not being spun). Typically the hard drive can appear to be completely dead or it may be that a high-pitched beeping sound is heard and repeated every 1 to 2 seconds as the drive attempts but fails to spin the data platters inside its chassis.

What causes Hard Drive Failure of the No Spin up Variety?

There are typically three basic causes for a hard drive failing to spin up. These are:
  1. Electrical damage to the printed circuit board (PCB).
  2. The seizure of the data platter motor.
  3. The read/write heads which normally float above the surface of the data platters crash into and subsequently adhere to the platters themselves preventing them from spinning.
In the case of the hard drive failure being due to a damaged PCB you will typically find that on application of power there is no sign of life whatever from the hard drive. In contrast the last two of the causes listed above for a hard drive failure will result in the hard drive making an attempt to spin the platters. This will typically be manifested as a slight pulse felt through the chassis every 1 to 2 seconds and/or a high-pitched beeping sound at roughly the same rate of repetition, as the hard drive attempts to get the platters to spin.

To Deal with Each of these Hard Drive Failure Causes in Turn

Electrical Damage to the PCB Causing Hard Drive Failure

This will typically take one of two forms. Where there has been a voltage spike or some other problem with the power supply to the hard drive itself then typically there will be blackened or obviously damaged components on the PCB. You will often find that this damage presents itself as a short-circuit to the computer’s power supply unit and consequently when you switch the computer on it will immediately switch itself off again (sometimes accompanied by an entertaining sound and light show of bangs and sparks).
Alternatively you may find that your computer remains switched on but there is no sign of life at all from your hard drive. In these circumstances it is more likely that the chip on the PCB which controls the data platter motor has suffered damage. Where this is the case you will commonly find that the motor control chip gets very hot when power is applied.
In terms of mitigating the hard drive failure and regaining access to your data, there is not much which can be safely done without expert intervention. Unfortunately buying an identical printed circuit board will almost certainly not regain access to your drive. The reason for this is that there is firmware information stored on each PCB which is unique to that individual hard drive. It will be necessary not only to obtain an identical PCB but also access to the specialised equipment which will allow the transfer of this firmware from the original to the donor PCB.

Hard Drive Failure through Seizure of the Data Platter Motor

The data platters inside the hard drive sit on a spindle which is rotated by a motor built-in to the chassis housing. This motor is in turn controlled by the motor control chip on the PCB referred to in the previous section. The bearings of this motor are especially vulnerable to impact damage. One of the most common outcomes of an external hard drive being dropped is the seizure of this motor. Once these bearings have become seized the platters cannot be spun and then of course there can be no access to the data on the platters.
Where this has happened, the usual data recovery response is to carry out what is commonly referred to as a “platter swap”. In this procedure a closely matching hard drive is acquired, the platters are physically moved from the seized hard drive to the donor drive along with the read/write head assembly and the printed circuit board. The success of this procedure will often depend upon the severity of the impact that originally resulted in the drive becoming seized.

Hard Drive Failure When the Read/Write Heads Have Become Stuck to the Platters

This particular form of failure is much more commonly found in the laptop sized (2.5”) form of hard drive although it is not entirely unknown among the desktop (3.5”) drives.
In a properly functioning drive the heads will return to a parking area when the drive itself is not in use. Sometimes this will be a set of ramps off to one side of the platters alternatively it may be an area of the platters themselves close to the centre (often referred to as a landing zone). However for this particular form of hard drive failure the heads do not return to their parking area but instead crash into the data area of the platters themselves and literally become stuck there. They then prevent the data platters from spinning up when power is subsequently applied. Usually a slight pulse can be felt as the platters attempt to free themselves of their heads.


Jun 22, 2014

Fly in Europe on a Budget

How to: Fly in Europe on a Budget

Because we all need to tighten our belts.



We have all fallen for it at one time or another: misleading ‘FLY TO (insert big city) FOR €12,99’ ads promoting flights that turned out to be a little less promising than expected. Still, we shouldn’t be complaining. Due to the emergence of competitive no-frills airlines, flying in Europe has never been cheaper. Although flights for the price of pint are pretty rare, you can still find decent fares if you take the time to look into offers of several airlines.

But… where to start? Type in ‘cheap flights Europe’ and guaranteed you will be bombarded with tons of 'search and compare' websites. Besides the fact that it's easy to get lost in an endless flow of information, these websites often only compare legacy airlines such as Lufthansa, KLM and Virgin, whilst ignoring budget carriers like WizzAir and Easyjet. Since we're looking for the best deals, I compiled a list of tips for you that can help you next time you’re looking for online flights.

What are the cheapest airlines in Europe?
The low-cost carriers I travel with most often are Ryanair and EasyJetwhich also happen to service the most destinations in Europe. Don't expect any hot, wet towels or space for your legs: we're talking back to basics here!* Other companies I have frequently travelled with and offer good deals are Wizzair, mainly flying in Central Europe; Transavia, chiefly operating scheduled and charter services to leisure destinations; and Vueling, concentrating on the Iberian Peninsula and Western Europe.


I have found all companies very reliable and, most important, dirt cheap: most offer flights in the €10–€30 range. Just to give you a few examples: I've travelled to Larnaca (Cyprus), Prague (Czech Republic), Trieste and Milano (Italy) from Eindhoven (the Netherlands) for just under €50 return.

* Contrary to popular belief, you don't have to pay for using the loo on Ryanair flights. ;-)


View from a plane ©Maaike

How to book the cheapest flight?
During the course of a day, prices fluctuate frequently, which means that 5 hours can really make a difference – sometimes in your favour, sometimes not. Either way, there are several insider secrets to booking the cheapest flight:
  • Book 4–6 weeks in advance, because airlines generally tend to make valuable deals available ±40 days prior to departure.
  • Fly mid-week. Most people travel during the weekend, which makes Wednesday the cheapest day to fly.
  • Buy your ticket on a Tuesday morning. Because airline pricing goes through a weekly cycle, most airfare sales are are filed late Monday, whilst sales prices are pulled late Thursday. I don't know if this is necessarily true for all low-cost carriers, but experience has taught me that it is cheaper to buy a ticket in the morning.
  • Fly low-season, i.e. between January and May.
  • The earlier or later the flight, the cheaper. Yes, this means getting up at 5 a.m. Horrid, I know.

Are there any pitfalls to flying with low-cost carriers?
Unfortunately, yes. Many budget airlines try to squeeze the money out of you in every possible way. Most sell their tickets exclusively over their websites rather than via travel agents, which means you are bound to use your credit or debit card to confirm the booking. Expect as much as €20 added to the total bill! Add to that overpriced food and drinks on board, baggage restrictions, non-refundable tickets and extra money you'd have to spend on travelling to and from faraway airports. (Little did I know that, when flying to Stockholm with Ryanair, I actually flew to a place nowhere near Stockholm and had to buy a €30 bus ticket... Such fun!)


Narita Airport, Tokyo ©Maaike
Do traditional airlines offer cheap tickets as well?
When taking all the above points into consideration, traditional airlines may offer cheaper alternatives in some cases. I therefore suggest going to Skyscanner (my personal favourite) 
or Cheapflights.com, passenger flight search engines that allow you to browse and compare flights via price and location. Competition from budget airlines have forced traditional carriers to cut their fares too, which means that even cheapskates like you and me could be flying in a quality airplane (with in-flight entertainment!).

Credit to thebackpackblues.blogspot.com

May 22, 2014

Basic Point for Getting Traffic to Any Page / Website




Reduce the Bounce Rate of your website , that needs quality and interesting content, and make sure that your target keywords is not stuffed here, if it is stuffed the visitor may get irritated and they won't go through the full page. Instead use long tail keywords

Tips to get More Visitors from USA

1) Start Collect Blogs/ Websites from USA which is your Keyword related

2) Forum - Regular Participation in US forums and add signature link as yours

3) Daily do at least 20 related blogs commenting that will worth to make many visitors

4) Collect some classified Sites in each state of the US ( Each state of US consists of different classified sites) and participate

5) StumbleUpon - Don't forget to share your post on StumbleUpon , but choose the best time when to share your post

6) As many told, Facebook is used and I recommend Google Plus- join 10 communities daily and add more peoples in G+ Circle and communicate effectively with them it will help a lot

7) Image optimization is very important - place your image inside content, that will attract your viewers to read your post

8) Pinterest and Instagram share your image with the post url that will also drive huge traffic but choose the best time

9) Track your website/blog any analytical tool in which time you get the US traffic and start your submission work at that time

Related Posts with Thumbnails