2,009 research outputs found
Smart Car System using Raspberry pi
Today's modern cars are becoming more and more connected to online world through the cloud. The main motivation is that the connected cars are able to access, collect and process a wide range of data through the cloud. There is an urgent need for improvement in the delivery of services. Smart car system allows lower traffic congestion by rerouting the vehicles to alternative roads and traffic is reduced significantly. Medical emergency needs can be met by uploading the information to cloud. Similarly vehicle breakdown problems can also be solved. In this paper a smart car system is implemented by using Raspberry pi. Two raspberry pi modules have been used . Either one of two modules can be used as , for transmission or reception of information. Python is the programming language used to implement the system. Four buttons are used to send four different in formation . Dropbox account has been created and is used as a cloud to upload the information. The required message is sent by pressing the right button . The information gets transferred from one raspberry module to another module and also gets uploaded to dropbox account in the form of excel sheet which is accessed through smart phone
Reduction of Color and COD of Anaerobically Treated Distillary Wastewater by Electrochemical Method
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Non-Gaussian Features of Transmitted Flux of QSO's Ly Absorption: Intermittent Exponent
We calculate the structure function and intermittent exponent of the 1.) Keck
data, which consists of 29 high resolution, high signal to noise ratio (S/N)
QSO Ly absorption spectra, and 2.)the Ly forest simulation
samples produced via the pseudo hydro scheme for the low density cold dark
matter (LCDM) model and warm dark matter (WDM) model with particle mass
and 1000 eV. These two measures detect not only
non-gaussianities, but also the type of non-gaussianty in the the field. We
find that, 1.) the structure functions of the simulation samples are
significantly larger than that of Keck data on scales less than about 100
h kpc, 2.) the intermittent exponent of the simulation samples is more
negative than that of Keck data on all redshifts considered, 3.) the
order-dependence of the structure functions of simulation samples are closer to
the intermittency of hierarchical clustering on all scales, while the Keck data
are closer to a lognormal field on small scales. These differences are
independent of noise and show that the intermittent evolution modeled by the
pseudo-hydro simulation is substantially different from observations, even
though they are in good agreement in terms of second and lower order
statistics. (Abridged)Comment: 17 pages, 13 figures. Accepted by Ap
Hardware Trojan Detection and Mitigation in NoC using Key authentication and Obfuscation Techniques
Today's Multiprocessor System-on-Chip (MPSoC) contains many cores and integrated circuits. Due to the current requirements of communication, we make use of Network-on-Chip (NoC) to obtain high throughput and low latency. NoC is a communication architecture used in the processor cores to transfer data from source to destination through several nodes. Since NoC deals with on-chip interconnection for data transmission, it will be a good prey for data leakage and other security attacks. One such way of attacking is done by a third-party vendor introducing Hardware Trojans (HTs) into routers of NoC architecture. This can cause packets to traverse in wrong paths, leak/extract information and cause Denial-of-Service (DoS) degrading the system performance. In this paper, a novel HT detection and mitigation approach using obfuscation and key-based authentication technique is proposed. The proposed technique prevents any illegal transitions between routers thereby protecting data from malicious activities, such as packet misrouting and information leakage. The proposed technique is evaluated on a 4x4 NoC architecture under synthetic traffic pattern and benchmarks, the hardware model is synthesized in Cadence Tool with 90nm technology. The introduced Hardware Trojan affects 8% of packets passing through infected router. Experimental results demonstrate that the proposed technique prevents those 10-15% of packets infected from the HT effect. Our proposed work has negligible power and area overhead of 8.6% and 2% respectively
Fertility problems in women with polycystic ovary syndrome
Background: PCOS (Poly Cystic Ovary Syndrome) is the most common endocrine disorder in women of reproductive age with high prevalence. It is a leading cause of infertility in women; this draws an attention to this issue. In this study we aimed to know the prevalence, clinical features, fertility problems and management of PCOS. Methods: In this prospective observational study, women who consulted Obstetrics & Gynaecology department were screened to identify the PCOS problems through clinical histories, PCOS questionnaire and ultrasonography over a period of 6 months at Rajiv Gandhi institute of medical sciences (RIMS) in Kadapa, India. Patients diagnosed with PCOS were assessed for their clinical manifestations, severity, life style and treatment given, and were educated accordingly through patient counselling and leaflets.Results: We observed 6.39 % prevalence out of 970 women. 59 (95.1%) patients were complained irregular menstrual cycles. Infertility was significantly high in PCOS women i.e. 13.35%. 64.4% of PCOS patients had miscarriages.Conclusions: PCOS is a complex condition with high prevalence of fertility problems, needing due attention. There is need to create attentiveness towards this issue. Early diagnosis and proper management with appropriate medicines and lifestyle modifications will improve the condition and prevents complications.
N-[4-Cyano-3-(trifluoromethyl)phenyl]-2-methoxybenzamide
In the title compound, C16H11F3N2O2, the carboxamide group connecting the two aromatic rings is in a syn-periplanar configuration; the molecule is non-planar; the dihedral angle between the two aromatic rings is 13.95 (18)°. Intramolecular N—H⋯O and C—H⋯O hydrogen bonds occur. In the crystal, molecules are linked by intermolecular C—H⋯O hydrogen bonds
1-(3-Bromo-2-thienyl)ethanone
In the title compound, C6H5BrOS, the non-H and aromatic H atoms lie on a crystallographic mirror plane. In the crystal, molecules are linked into chains propagating along the c axis by intermolecular C—H⋯O hydrogen bonds
Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites
Poly(vinylidene fluoride), PVDF, based nanocomposites with different clays structures have been processed by solvent casting and melt crystallisation. Depending on the melting temperature of the polymer, the nanocomposite recrystalises in the electroactive or non electroactive β-phase of the polymer. This fact is related to the thermal behaviour of the clay. For montmorillonite clay, the full crystallisation of the electroactiveγ-phase occurs for clay contents lower than 0.5 wt%, allowing the nanocomposites to maintain the mechanical properties of the polymer matrix. The electroactivity of the material has been proven by measuring the piezoelectric d33 response of the material. The obtained value of d33 is -7 pC/N, lower than in β-PVDF obtained by mechanical stretching, but still among the largest coefficients obtained for polymers. Further, the optical transmittance in the visible range is strongly enhanced with respect to the transmittance of the pure polymer. Finally, it is demonstrated that the nucleation of the β-phase can be also obtained in other clays, such as in kaolinite and laponite.Fundação para a Ciência e a Tecnologia (FCT) - NANO/NMed-SD/0156/2007, PTDC/CTM/69316/2006, PTDC/CTM-NAN/112574/2009, SFRH/BD/62507/2009.FEDER funds through the "Programa Operacional Factores de Competitividade – COMPETECOST Action MP1003, the ‘European Scientific Network for Artificial Muscles’ (ESNAM)
Underground tales, overground lives: mobile work identities through to post-retirement
Although there has been recent attention given to the subject of mobile work, there has been less focus, within mobility studies, on the work of those who enable movement: the job of the transport worker. This article takes this incarnation of mobile workers as the basis for understanding the ways in which mobile work identities are pulled through into retirement. The article firstly proposes that transport workers, as movement enablers, have particular identities, and are an important and neglected topic of study within mobilities. Secondly, it suggests that the post-work identities of mobile workers are contingent on their experiences during their working lives and that these are particular to mobile work. The article is evidenced through data gathered during a mobile ethnographic study with two retired London Underground employees. The participants joined the researchers on a walking tour of a disused underground railway station in London, ‘Hidden London’, organised by the London Transport Museum and their experiences and emotional responses were recorded and analysed. Understanding post-work identities through the embodied and spatial experiences of the present, the research sought insights of the past and future; the continuity and fluidity of working identities that permeated through to post-work lives. This article argues that mobile work identities are specific identities that shape a distinct post-retirement identity
Effect of Feeding Frequencies on Growth and Profit of Asian Seabass (Lates calcarifer) in Cage Culture Systems
Cage culture is one of the most advanced aquaculture production systems where fishes are held in floating enclosures like net
cages, moored in the open water systems, and allow free water flow. The open water cages developed by Central Marine Fisheries
Research Institute (CMFRI) during the last decade are becoming very popular in coastal waters. One of the major problems faced
by farmers at all stages of culture is fish feed and feeding. A suitable feeding strategy is important to improve fish growth and
reduce feed costs and environmental pollution. The study was conducted to investigate the effect of feeding frequency from sea
bass cultured in cages on water quality, growth parameters, survival rate, economic return and bottom characters in Moothakunnam
(N10011.478’ E076011.901’+ 4m) in Ernakulam district. Water and sediment samples and growth parameters were collected and
analyzed monthly from inside and outside of the cages for a period of one year. Significant differences were found in growth
parameters like weight gain (1.04±0.03-1.78±0.008), Specific growth rate (1.2±0.03-1.48±0.005), Survival rate (40%-61.53%)
and FCR (4.3-4.56). The water quality parameters DO, Nitrate, Nitrite, Ammonia and Orthophosphate in the cage and reference
sites did not show many significant variations indicating a healthy growth condition in the cages. Therefore it could be concluded
that the growth performance of sea bass is increasing by feeding frequency, but the economic analysis indicated that net profit is
negatively related to feeding frequency
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