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*IMP*JNTUHYD : Plagiarism Check For Final Year Project Work of M.Tech (R15) Students

All the Principals of the colleges offering M.Tech and M.Pharmacy courses are here by informed that the project works of students who are studying in R15-regulations, shall be checked for plagiarism (the practice of taking someone else’s work or ideas and passing them off as one’s own) by the University. Hence it is requested to upload soft copies of the project works of students of M.Tech/ M.Pharmacy courses (R15 regulations) in pdf formats to the JNTUH portal by using the url: “registrations1.jntuh.ac.in/r15projectthesisaugust2017” for plagiarism checking. This soft copy of the project thesis uploading service will be available from 08-08-2017. The user ID and Password is same as that of PG Project Panels uploading service. The name of the document shall be the ‘student hall ticket number-title of the thesis.pdf’. The Principals are advised to make an arrangement for the plagiarism check at their end before submitting the project works to JNTUH portal. This act will result in passing through the plagiarism check at University in the first submission itself. This is for your information and necessary action.

EVALUATION OF PROJECT/DISSERTATION WORK FOR R15 M.Tech :

1. After approval from the PRC, the soft copy of the thesis should be submitted to the University for ANTI-PLAGIARISM for the quality check and the plagiarism report should be included in the final thesis. If the copied information is less than 24%, then only thesis will be accepted for submission.

2. For Project work Review I in II Year I Sem. there is an internal marks of 50, the evaluation should be done by the PRC for 25 marks and Supervisor will evaluate for 25 marks. The Supervisor and PRC will examine the Problem Definition, Objectives, Scope of Work, Literature Survey in the same domain. A candidate has to secure a minimum of 50% of marks to be declared successful for Project Work Review I. If he fails to fulfill minimum marks, he has to reappear during the supplementary examination.

3. For Project work Review II in II Year II Sem. there is an internal marks of 50, the evaluation should be done by the PRC for 25 marks and Supervisor will evaluate for 25 marks. The PRC will examine the overall progress of the Project Work and decide the Project is eligible for final submission or not. A candidate has to secure a minimum of 50% of marks to be declared successful for Project Work Review II. If he fails to fulfill minimum marks, he has to reappear during the supplementary examination.

4. For Project Evaluation (Viva Voce) in II Year II Sem. there is an external marks of 150 and the same evaluated by the External examiner appointed by the University. The candidate has to secure minimum of 50% marks in Project Evaluation (Viva-Voce) examination.

5. If he fails to fulfill as specified in (4), he will reappear for the Viva-Voce examination only after three months. In the reappeared examination also, fails to fulfill, he will not be eligible for the award of the degree.

Landmark law to grant permanent residency to expats in Qatar

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A landmark law with the potential to ultimately transform Gulf societies by granting permanent residency cards and new rights  to some of the foreigners who dominate its population.
Under the new law, cardholders will be treated like Qatari nationals and will benefit from elements of the state’s generous welfare system, including education and health-care services, the official Qatar News Agency reported late Wednesday.

They will also be given priority, after locals, for military and civilian public jobs and would be allowed to own property and run certain commercial activities without a local partner,
QNA reported. Those eligible for the card include children of Qatari women married to foreigners, people with special talents “needed by the state,” and others who have extended notable services to the country, it said. Citizenship, however, will remain off-limits to foreigners.

The Interior Ministry will set up a department to consider applications, QNA said.

The legislation was approved after Qatar’s ruler, Sheikh Tamim bin Hamad Al Thani, instructed officials in a July 22 speech to expedite measures to lure investments and reduce the economy’s reliance on energy in the wake of the boycott. He said opening up the economy was no longer a “luxury” but an obligation.

 

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Pouring of Concrete During the Rain

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The quality of concrete is directly related to its strength, which depend on water cement ratio. The workability is the parameter of concrete, which determines the homogeneity in the sense of the quality. The priorities and proportions of the construction materials always affect the workability of the fresh concrete.

The rain water increases the proportion of water in the concrete mix at the time of mixing, transporting, placing, compacting and finishing. The sand and aggregate get wet in the rain, which raises the proportion of water in the concrete. These factors increase the water-cement ratio of concrete mix. Though water-cement ratio improves the workability of concrete, it ultimately reduces the strength to a great extent.

An average increase of 0.1 of water cement ratio reduces strength by 5%. Hence excess water in any case should be avoided. However, this does not mean, we cannot pour the concrete in the rainy season.

 

The rain certainly affects the concrete pouring when it occurs before the initial setting i.e. when concrete is in fresh condition. The initial setting time of concrete is 30 min. The rain also affects the concrete while mixing or transporting.

The rain increases the water-cement ratio of the fresh mix and hence results in bleeding in concrete. The bleeding of water also carries the cement particle with it. Hence, water cement ratio will get reduced, which will further decrease the strength of concrete.

If the formwork is fixed properly, the layer of cement slurry will be formed on the top due to the settlement of solid particles by gravity action. This top layer becomes porous and weak in nature due to rain, which results in the poor strength of concrete. Sometimes plastic shrinkage cracks may also appear on the surface of the concrete.

02. Laying concrete is not easy during the rain. The rain affects the concrete pouring when it occurs after the initial setting time (30 min) and before final setting time (600 min). It means, it is not in fresh condition or it is initially set. It also means the concrete is in gel condition (your finger leaves only an impression but not dip into the concrete when you touch it).

In this case, the rain does not affect the mix very much. The impression of rain droplets will be seen on the surface of the concrete. It looks ugly as rain impact the surface finish, but it will not affect the strength of concrete. Sometimes, If the intensity of rainfall or the internal voids are higher in concrete, then rain may affect the top layer of concrete.

03. The rainwater does not affect the pouring concrete when it occurs after the final setting time (> 600 min) of concrete. It means concrete is in stiff condition (your finger do not leave an impression on the surface when you touch it). On the contrary, the light rain helps to cure the concrete and ultimately helps to achieve a good strength.

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Precaution while Laying Concrete in the Rainy Season:

Always see weather forecast and probability of rain on website like skymetweather.com

  • The provision of the adequate good quality plastic sheet should be made in advance at the time of placing the concrete.

The plastic tarpaulins sheets are used to cover the pouring area during the rainy season. But remember that the plastic sheet should not be in contact with the surface when you cover the surface of concrete at the time of rain. If it is laid directly on the surface, then it may increase the setting time of concrete and disturb the finishing. Therefore, you have to cover the plastic sheet in such a way that the concrete will get air and workers can easily place, compact, and finish the concrete. Ask him what quantity of water is to be reduced depending upon the intensity of the rain. Also, exercise all precautions.

  • Simply reduce water cement ratio as the rain water is already present on the surface of aggregate due to raining or increase the quality of cement, which is worthy.
  • The water-cement ratio should be reduced by mixing the appropriate admixture after getting the permission of consultant.
  • The staging should be provided to cover the pouring area with the plastic sheet. Every precaution should be taken to reduce the interruption due to rain during the pouring activity. The bit of help should be taken from the weather department to plan the pouring of concrete.
  • Spray rich cement slurry on the surface, where it has rained immediately after you laid concrete.
  • If possible cover aggregate also, as when they become wet; they increase the water cement ratio.

In conclusion, the answer to your question “Can I lay Concrete in the Rain?” is generally you can, provided you do exercise all above precautions. You can pour concrete in the rain. But of course not during very heavy rain as it will wash the cement slurry in laid concrete.

You can lay concrete in the light rain like sprinkling or spraying of water with the provision of the thick plastic sheet. However, It is advisable, not to start concrete pouring in the heavy rain. It is also highly advisable to suspend the concrete pouring work while its raining heavily.

If it is raining during pouring concrete or within the first 30 minutes i.e. initial setting time of concrete then reduce the water cement ratio up to the required slump of concrete, and lay a plastic sheet over concrete laid.

If it rains between after setting time and before final setting time i.e. after 30 minute and before 600 minute (10 Hour) then cover the concreting or concrete casting area with tarpaulin and spread the rich cement slurry on the surface of concrete where it has rained.

If it rain after final setting time i.e. 600 minute (10 Hour) then no need to worry as rain infect improve curing of concrete.

WhatsApp has 1 Billion daily active users

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WhatsApp keeps on growing and growing. In my neck of the woods, it’s the way everyone communicates these days. Messages are sent through it, groups are made for friends to share memes and funny photos, families use it to stay in touch and share photos, customers communicate with businesses through it — heck, even my patients ask me medical questions over it! Voice messages are used like asynchronous phone calls or when your message is better conveyed with voice instead of text, and WhatsApp voice and video calls are quickly overtaking phone calls. The service is immediate without being intrusive, and it’s so ubiquitous that you don’t even think of email, SMS, or other ways of communicating unless you realize the person you’re trying to reach isn’t on WhatsApp.

So it’s no surprise to me that even more people are using WhatsApp every day. Last year, the company announced 1 Billion monthly active users, but that’s how many are now using it daily whereas monthly users have jumped up to 1.3 Billion. As for the messenger’s main features, there are 55 Billion being sent every day along with 4.5 Billion photos and 1 Billion videos.

 

Source

Foam Concrete

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Foam concrete, also known as foamed concretefoamcretecellular lightweight concrete or reduced density concrete, is defined as a cement based slurry, with a minimum of 20% (per volume) foam entrained into the plastic mortar. As mostly no coarse aggregate is used for production of foam concrete the correct term would be called mortar instead of concrete. Sometimes it may be called as “foamed cement” or “foam cement” because of mixture of only Cement & Foam without any fine aggregate. The density of foam concrete usually varies from 400 kg/m³ to 1600 kg/ m³. The density is normally controlled by substituting fully or part of the fine aggregate with foam.

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The history of foam concrete dates back to the early 1920s and the production of autoclaved aerated concrete, which was used mainly as insulation. A detailed study concerning the composition, physical properties and production of foamed concrete was first carried out in the 1950s and 60s.Following this research, new admixtures were developed in the late 1970s and early 80s, which led to the commercial use of foamed concrete in construction projects. Initially, it was used in the Netherlands for filling voids and for ground stabilisation. Further research carried out in the Netherlands helped bring about the more widespread use of foam concrete as a building material.

 

Foamed concrete typically consists of a slurry of cement and fly ash or sand and water, although some suppliers recommend pure cement and water with the foaming agent for very lightweight mixes. This slurry is further mixed with a synthetic aerated foam in a concrete mixing plant.The foam is created using a foaming agent, mixed with water and air from a generator. The foaming agent used must be able to produce air bubbles with a high level of stability, resistant to the physical and chemical processes of mixing, placing and hardening.

Foamed concrete mixture may be poured or pumped into moulds, or directly into structural elements. The foam enables the slurry to flow freely due to the thixotropic behaviour of the foam bubbles, allowing it to be easily poured into the chosen form or mould. The viscous material requires up to 24 hours to solidify (or as little as two hours if steam cured with temperatures up to 70 °C to accelerate the process.), depending on variables including ambient temperature and humidity. Once solidified, the formed produce may be released from its mould.

 

Foam concrete is a versatile building material with a simple production method that is relatively inexpensive compared to autoclave aerated concrete. Foam concrete compounds utilising fly ash in the slurry mix is cheaper still, and has less environmental impact. Foam concrete is produced in a variety of densities from 200 kg/m³ to 1,600 kg/m³ depending on the application. Lighter density products may be cut into different sizes. While the product is considered a form of concrete (with air bubbles replacing aggregate), its high thermal and acoustical insulating qualities make it a very different application than conventional concrete.

 

Advantages

  • Weight reduction of superstructure using foam concrete walls: less steel reinforcements required for slabs, columns, beams and foundation due to lesser load.
  • Earthquake-resistant due to lesser weight of building built using foam concrete walls in multistory buildings
  • Suitable for buildings in hurricane, cyclone and flood affected areas as the damage caused by foam concrete walls and roofs are minimal compared to conventional concrete based structures.
  • Reduced cost of raw materials: By adding air, enclosed in foam bubbles, the volume of concrete can be increased at very low cost.
  • Environmentally-friendly/Energy savings: In comparison to autoclaved aerated concrete (AAC/ gas concrete), air curing is possible for foam concrete. This saves up to 9 m³ of gas for curing one cubic meter of AAC and therefore protects the environment.
  • Cost reduction for transportation and storage: Less raw materials, very efficient foam concentrate.
  • Faster construction using cast-in-situ application
  • Improved thermal insulation: Foam concrete can achieve the same insulation results as normal concrete with only 20% of the weight and 10% of raw materials.
  • Improved fire protection: A wall of 13 cm thickness and 1,250 kg/m³ can withstand a fire for 5 hours. A wall of 10 cm thickness and only 400 kg/m³ achieves the same result, due to the air enclosed in the cellular concrete.
  • Easy to use/ produce/ handle
  • Low investment: Just one simple machine required.
  • High flowing capability: Can fill hollow spaces.
  • Low water absorption: Only 10–15%, if specific foaming agents are being used in combination with silicon oil in the cement slurry, the water absorption rate can be decreased to only 1%

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Until a decade ago, foam concrete has been regarded as weak and non-durable with high shrinkage characteristics. This is due to the unstable foam bubbles resulted in foam concrete having properties unsuitable for producing very low density (Less than 300 kg/m³ dry density) as well as load bearing structural applications. It is therefore important to ensure that the air entrained into the foamed concrete is contained in stable at the same time very tiny uniform bubbles that remain intact and isolated, and do not thus increase the permeability of the cement paste between the voids.

The development of synthetic-enzyme based foaming agents, foam stability enhancing admixtures and specialized foam generating, mixing and pumping equipment has improved the stability of the foam and hence foam concrete, making it possible to manufacture as light as 75 kg/m³ density. The synthetic enzyme based foaming agents are a new and innovative foaming agent technology developed recently. It consists of highly active proteins of biotechnological origin and is not based on the unattractive protein hydrolysis. In recent years foamed concrete has been used extensively in highways, commercial buildings, disaster rehabilitation buildings, schools, apartments and housing developments in countries such as Germany, USA, Brazil, Singapore, India, Malaysia, Kuwait, Nigeria, Botswana, Mexico, Indonesia, Libya, Saudi Arabia, Algeria, Iraq and Egypt.

Microsoft Paint isn’t dead yet, after all

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Following an outcry from fans on Monday, Microsoft (MSFT, Tech30) said the app will soon land in the Windows Store for free.

“In the future, we will offer MS Paint in the Windows Store also for free, and continue to provide new updates and experiences to Paint 3D so people have the best creative tools all in one place,” a Microsoft spokesperson told CNN Tech late Monday night.

Paint was on Microsoft’s list of “deprecated” features for future software releases, which means it’s “not in active development” and could be removed soon.

The program was released in 1985 with the first version of Windows 1.0. It has been installed with every version of Windows since.

Microsoft said in a blog post it saw an “incredible outpouring of support and nostalgia around MS Paint” on Monday and that the program is “here to stay.”

As of last year, the app still had over 100 million monthly users.

While Paint will be available for download from the Windows Store, that’s not the same as being a core part of Windows. This could be problematic for employees using work computers, who may not have administrative privileges to install apps like Paint from the Windows Store.

Moving forward, Paint 3D will come installed on current and future versions of Windows. Microsoft unveiled the spinoff drawing app last October and says it has integrated many of MS Paint’s main functions into the program.

Promotion Rules For B.Tech (R15) for JNTUH

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B.Tech – R15 [Regular Students] :
1 Year to 2 Year :
A student will not be promoted from 1 Year to 2 Year unless he fulfills the academic requirement of 28 credits out of 56 credits of 1 year from all the examinations and secures prescribed minimum attendance in 1 year.

2 Year to 3 Year :
A student will not be promoted from 2 Year to 3 Year unless he fulfills the academic requirement of 50 credits out of 84 credits up to 2 Year I semester or 68 credits out of 112 credits upto 2 Year II Semester, from all the examinations, whether or not the candidate takes the examinations and secures prescribed minimum attendance in 2 Year II semester.

3 Year to 4 Year
A student shall be promoted from 3 Year to 4 Year only if he fulfills the academic requirements of 84 credits out of 140 credits up to 3 Year I semester or 100 credits out of 168 credits upto III Year II Semester from all the examinations, whether or not the candidate takes the examinations and secures prescribed minimum attendance in 3 Year II semester.

B.Tech – R15 [Lateral Entry Scheme Students] :
2 Year to 3 Year
A student will not be promoted from 2 Year to 3 Year unless he fulfills the academic requirement of 17 credits out of 28 credits in 2 Year I semester or 34 credits out of 56 credits upto 2 Year II Semester, from all the examinations, whether or not the candidate takes the examinations and secures prescribed minimum attendance in 2 Year II semester.

3 Year to 4 Year
A student shall be promoted from 3 Year to 4 Year only if he fulfills the academic requirements of 50 credits out of 84 credits up to 3 Year I semester or 68 credits out of 112 credits upto 3 Year II Semester from all the examinations, whether or not the candidate takes the examinations and secures prescribed minimum attendance in 3 Year II semester.