Implementation of Six Degrees of Seperation Using Two Dimensional Bi-direction Search to Connect People

Shubham Kumar,Shivank Sharma,N. Ch. S. N. Iyengar 보안공학연구지원센터 2015 International Journal of Database Theory and Appli Vol.8 No.6

Six Degrees of Separation is a theory that has recently been popularized due to the emergence of various social networking platforms. This theory states that any two random people in the world can be associated with each other with no more than six intermediate links. Though this theory has not been verified yet it has a great potential for practical implementation. In this paper we use this theory to create an application which is going to help the user in finding other individuals who share some common links and can be of benefit to the user. This is achieved through maintaining a central database which contains the details of all the users using our application. A user can search for other people on our database based on certain parameters which would then display the resultant links between the user and the selected target. This establishing of links is achieved using two dimensional bi-direction search algorithm.

A Review- on Different Types of Displays

Shubham Shama,Udita Jindal,Mehul Goyal,Sahil Sharma,Vivek Goyal 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.8

Display technology has evolved much lately. No wonder the quality of a device is best judged by its display. In today’s time, displays have gone from miniature monochrome screens on huge devices to thinner screens on smartphones and from monochrome to millions of colors and from no touch to multi touch support. But the most important point to be pondered upon is that a new type of display technology is now being actively adopted with the first devices with flexible screens to be launched in the near future. But before making a leap into that future of new technology, one must know how the display technology evolved and where it stands now. Discussing the various types of displays and their pros and cons, the paper depicts the switching of technology from one to another.

Improved resistive switching performance in Cu-cation migrated MoS2 based ReRAM device incorporated with tungsten nitride bottom electrode

Ravi Prakash,Shubham Sharma,Anuj Kumar,Davinder Kaur 한국물리학회 2019 Current Applied Physics Vol.19 No.3

The resistive switching characteristics of sputtered deposited molybdenum disulphide (MoS2) thin film has been investigated in Cu/MoS2/W2N stack configuration for Resistive Random Access Memory (ReRAM) application. The benefits of incorporating tungsten nitride (W2N) as a bottom electrode material were demonstrate by stability in operating voltages, good endurance (103 cycles) and long non-volatile retention (103 s) characteristics. Resistive switching properties in Cu/MoS2/W2N structure are induced by the formation/disruption of Cu conducting filaments in MoS2 thin film. Ohmic law and space charge limited current (SCLC) are observed as dominant conduction mechanism in low resistance state (LRS) and high resistance state (HRS) respectively. This study suggests the application of MoS2 thin films with W2N bottom electrode for next generation non-volatile ReRAM application.

In-vitro meat: a promising solution for sustainability of meat sector

( Pavan Kumar ),( Neelesh Sharma ),( Shubham Sharma ),( Nitin Mehta ),( Akhilesh Kumar Verma ),( S Chemmalar ),( Awis Qurni Sazili ) 한국축산학회 2021 한국축산학회지 Vol.63 No.4

The in-vitro meat is a novel concept in food biotechnology comprising field of tissue engineering and cellular agriculture. It involves production of edible biomass by in-vitro culture of stem cells harvested from the muscle of live animals by self-organizing or scaffolding methodology. It is considered as efficient, environmental friendly, better ensuring public safety and nutritional security, as well as ethical way of producing meat. Source of stem cells, media ingredients, supply of large size bioreactors, skilled manpower, sanitary requirements, production of products with similar sensory and textural attributes as of conventional meat, consumer acceptance, and proper set up of regulatory framework are challenges faced in commercialization and consumer acceptance of in-vitro meat. To realize any perceivable change in various socio-economic and environmental spheres, the technology should be commercialized and should be cost-effective as conventional meat and widely accepted among consumers. The new challenges of increasing demand of meat with the increasing population could be fulfill by the establishment of in-vitro meat production at large scale and its popularization. The adoption of in-vitro meat production at an industrial scale will lead to self-sufficiency in the developed world.

Spatio-Temporal Variability of Rainfall Indices and their Teleconnections with El Niño-Southern Oscillation for Tapi Basin, India

Gehlot Lalit Kumar,Jibhakate Shubham M.,Sharma Priyank J.,Patel P. L.,Timbadiya P. V. 한국기상학회 2021 Asia-Pacific Journal of Atmospheric Sciences Vol.57 No.1

The long-term spatio-temporal variability in twelve rainfall indices across Tapi basin are investigated for period 1944–2013. The temporal trends in aforesaid indices, representing magnitude, intensity, frequency and duration of rainfall, are analysed using nonparametric tests. The total annual rainfall exhibit uniformly increasing trends over Lower Tapi basin (LTB), while heterogeneous trends are observed across Upper (UTB) and Middle (MTB) Tapi basins. The rainy days portrays decreasing trends at 75% stations in the basin, while rainfall intensity displays increasing trends across LTB and UTB. On other hand, LTB and Purna sub-catchment (in UTB) show coherent increasing trends in extreme rainfall, while decreasing trends are observed over Burhanpur sub-catchment (in UTB) and MTB. A considerable increase in duration of dry spells is reported at 92.5% stations in the basin, indicating a marked shift towards drier climatic regime. Further, Principal Component Analysis (PCA) is carried out to address the space-time variability of rainfall indices. The results of PCA were adopted in cluster analysis to identify the stations exhibiting similar characteristic variations in rainfall trends. The hydroclimatic teleconnections between rainfall indices and large-scale oceanic-atmospheric circulations of the tropical Pacific Ocean (viz., El Niño-Southern Oscillation) revealed the prevalence of wet conditions in the basin during moderate to strong La-Niña, while dry conditions were encountered during moderate to strong El-Niño and weak La-Niña events. The spatial estimates of rainfall indices are derived corresponding to 2-, 10- and 50-year return periods which would be helpful in hydrologic design and risk assessment of rainfall-induced disasters in near future.

Strength and permeation properties of alccofine activated low calcium fly ash geopolymer concrete

Bharat Bhushan Jindal,Dhirendra Singhal,Sanjay Sharma,Aniket Yadav,Shubham Shekhar,Abhishek Anand 사단법인 한국계산역학회 2017 Computers and Concrete, An International Journal Vol.20 No.6

This paper presents the experimental investigations on the compressive strength and permeation properties of geopolymer concrete prepared with low calcium fly ash as the primary binder activated with different percentage of Alccofine. The durability aspect was investigated by performing permeable voids and water absorption tests since permeability directly influences the durability properties. The test results show that Alccofine significantly improves the compressive strength and reduces the water permeability thus enhances the durability of geopolymer concrete at ambient curing regime which encourages the use of geopolymer concrete at ambient curing condition thus promising its use in general construction also.

Effect of Friction Stir Process Parameters on Mechanical Properties of Chrome Containing Leather Waste Reinforced Aluminium Based Composite

Shashi Prakash Dwivedi,Rajeev Agrawal,Shubham Sharma 한국정밀공학회 2021 International Journal of Precision Engineering and Vol.8 No.3

Nowadays, there is a lot of environmental pollution due to the wastes generated by the industries. In particular, the waste generated by leather industries produces more environmental pollution. Chrome containing leather waste (CCLW) also causes a lot of environmental pollution. In this study, an attempt has been made to use CCLW as reinforcement with aluminium. Collagen powder was extracted from CCLW. Extracted collagen powder was used to develop aluminium based composite after ball-milling with alumina particles. The parameters of the friction stir process (FSP) are optimized by the Box-Behnken Design. The optimum combination of FSP parameters was found to be the number of tool pass of 1, tool rotational speed of 965.20 rpm and transverse speed of 23.69 mm/min. Tensile strength and hardness were found to be 162.89 MPa and 53.24 BHN, respectively at an optimum combination of FSP parameters. Uniform distribution of reinforcement particles has been also observed for the composite developed at an optimum combination of FSP parameters. Results showed that tensile strength and hardness of composite were enhanced by about 20.65 % and 23.81 % respectively with respect to the base material.

Cutting fluid corrosion inhibitors from inorganic to organic: Progress and applications

Haogang Li,Yanbin Zhang,Changhe Li,Zongming Zhou,Xiaolin Nie,Yun Chen,Huajun Cao,Bo Liu,Naiqing Zhang,Zafar Said,Sujan Debnath,Muhammad Jamil,Hafiz Muhammad Ali,Shubham Sharma 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.5

Water-based cutting fluid has a broad application area and a hundred year history, but its poor corrosioninhibition and anti-rust ability limit its further promotion. Adding corrosion inhibitors can effectively solve the aboveproblems. However, no review papers are available on cutting fluid corrosion inhibitors, and their mechanism, suitability,and performance influencing factors have not been revealed. This article discusses cutting fluid corrosion inhibitorsto fill the gaps in theoretical research and industrial applications. Inorganic matters are initially used in corrosion inhibitiondue to their strong oxidizing properties. Therefore, the film formation mechanism of inorganic corrosion inhibitoroxide and precipitation film is first analyzed, and the applications in corrosive medium are summarized. Given thatinorganic corrosion inhibitors are not environmentally friendly and expensive, organic corrosion inhibitors are currentlyused as replacement. Thus, the film formation mechanism of different organic corrosion inhibitors adsorptionfilm is analyzed, and their suitability with metals is determined. The influence of molecular structure and temperatureon their corrosion inhibition effect is also studied, and the performance of inorganic and organic corrosion inhibitors iscompared. However, single organic corrosion inhibitors are greatly affected by metal surface state, temperature, andimmersion time. Therefore, the synergistic film formation after the compounding of organic and inorganic corrosioninhibitors is analyzed. In addition, the influence rate of concentration, molecular structure, and temperature on corrosioninhibition performance is revealed, and a matching database of corrosion inhibitor type and metal type in cuttingis established. Finally, in view of the limitations of cutting fluid corrosion inhibitors, the establishment of a moleculardynamics model of corrosion inhibitor failure and accelerates corrosion and the development of general-purpose greenadditives based on the molecular design and physical and chemical analysis of the suitability of corrosion inhibitor andbase liquid are prospected.