Study on Voltage Controlling Techniques In Grid Connected PV System

The energy is the very important parameter for survival or today’s growth we can transfer the energy from one form to other. The mainly wind and solar energies are the most available among other renewable energy sources in all over the world. In the present years, because of the rapid advances of power electronic systems the production of electricity from wind and photovoltaic energy sources have increased significantly. This paper proposed hybrid system is using of controlling power

Wireless Sensor Network Security Model for D2P Attacks Using Zero Knowledge Protocols

Wireless sensor networks (WSNs) are innovative large-scale wireless networks that consist of distributed, lowpower, small-size devices using sensors to cooperatively collect information through infrastructure less ad-hoc wireless network. These small devices used in wireless sensor nodes are called sensor nodes. They are envisioned to play an important role in a wide variety of areas ranging from critical military surveillance applications to forest fire monitoring and building security monitoring in the near future. In these networks, a large number of sensor nodes are deployed to monitor a vast field, where the operational conditions are most often harsh or even hostile. Since these networks are usually deployed in remote places and left unattended, they should be equipped with security mechanisms to defend against attacks such as node capture, physical tampering, eavesdropping, denial of service, etc. Unfortunately, traditional security mechanisms with high overhead are not feasible for resource constrained sensor nodes

Power productivity enhancement using performance analysis of biomass gasifier at energy park, RGTU Bhopal (MP, India)

 Abstract: The concept paper represents possible opportunities for strategic investment in remote area development and further due attention is paid to determine its feasibility.  We examined the status and performance of biomass gasification unit for electricity generation fuelled by woody biomass installed at Energy Centre, Rajiv Gandhi Technological University Bhopal, (India).  The main objective of the research project is to utilize the resources of existing biomass feedstock and make performance analysis under purpose of fulfilling the electrical demand of Energy Centre Rajiv Gandhi Technological University Bhopal (India) and rural users in powering of their home lighting, by means of renewable energy.  The results of the work will be useful for the future engineering development of biomass gasification unit power generation technologies.Keywords: biomass, gasification, co-generation, pyrolysis, combustion, India

Establishing the requirements to support improved adoption of alternate technologies for the long-haul road freight decarbonisation

The UK has a target of achieving net-zero carbon emissions by 2050, which will require the decarbonisation of road transport. However, in the long-haul road freight segment, the optimal pathway to achieving net-zero is uncertain. This review paper explores and evaluates existing approaches to building decarbonisation pathways for heavy goods vehicles (HGVs). The search and review methodology, utilising the frameworks SALSA, PRISMA, and PESTEL, found gaps in three main aspects of pathway building. While a number of the studies considered vehicle or energy systems, a few took a broader system-level view. The parameters used for measuring the utility of the alternate technology required to achieve net-zero were not comprehensive. Further, the pathways lacked a socio-technical approach. The findings from the research have been used to provide insights and a conceptual framework that can be used for building a comprehensive model for improving technology adoption for the HGV decarbonisation pathway

Association between CHA2DS2-VASc score and in-hospital death in ICU patients with COVID-19

Background: CHA2DS2-VASc score is a scientifically proven risk assessment score for patients with atrial fibrillation. It may be a good predictor of in-hospital death in COVID-19 patients. The present study aimed to evaluate the association between CHA2DS2-VASc score and in-hospital mortality in the prognosis of intensive care unit (ICU) patients with COVID-19. Methods: Eighty-four COVID-19 patients who were hospitalized in the ICU were retrospectively analyzed in a tertiary health care center, and the CHA2DS2-VASc score was determined. All analyses were performed using SPSS statistical software (SPSS Inc., Chicago, IL, USA, 20.0). A p-value <0.05 was considered statistically significant. Results: The median age of patients was 60.0 years, and most were males (75.0%). Findings of the study showed that the CHA2DS2-VASc score was considerably higher among the hospitalized patients than discharged patients (3.08 ± 1.72 vs. 1.38 ± 1.16; p<0.001), and patients who required mechanical ventilation compared to those who did not require mechanical ventilation (3.03 ± 1.68 vs. 1.15 ± 0.97; P <0.001), respectively. Patients with CHA2DS2-VASc score of ≥3 had substantially higher age [67(45-87) vs. 58(19-75); P ˂0.001], computed tomography involvement score [67.5(20-90) vs. 35(15-90); P ˂0.001] and need for mechanical ventilation [29(90.6%) vs. 22(42.3%); P ˂0.001]. A significant difference was found in oxygen saturation on admission (P =0.001) between the two groups. In-hospital death was significantly higher among patients with a CHA2DS2-VASc score of ≥3 (P <0.001). The CHA2DS2-VASc score was positively correlated with white blood cells count (r=0.257, P =0.018) and negatively correlated with the number of days spent in the hospital (r=-0.184, P=0.130) due to higher in-hospital death in ICU patients with COVID-19. Conclusion: CHA2DS2-VASc score may be an effective tool to estimate in-hospital death in COVID-19 patients who were hospitalized in the ICU

Moving on from a Diesel Mindset—Understanding Enablers and Challenges for Electrifying Road Freight Using Stakeholder Engagement

Achieving net zero by 2050 requires the decarbonisation of road transport. Electrification is recognised as a market-ready solution for certain transport segments, but it still poses a considerable challenge when applied to road freight. Any consensus on the technology choice for road freight electrification has still not been established. Embedding stakeholder input in the approach to address the technology adoption challenge has proven useful in uncovering various perspectives, which can provide useful insights into managing such transitions. This review paper hence took a three-step approach where the findings from the initial step of the literature search were taken up for the second step of stakeholder validation and feedback. The third step involved an analysis of the input gathered and the subsequent literature review to arrive at the conclusions. The outcome from the stakeholder engagement suggests that any specific technology can only support the transition to electrified road freight if enabled by system changes around policy, infrastructure, user behaviour, and the societal setup A follow-up literature review validated the need for a sociotechnical approach to such transitions where system changes are involved. The review also found gaps in the literature when it comes to embedding such sociotechnical approaches to technology adoption for road freight transport

Hypoglycemic activity of aqueous extract of Urtica parviflora roxb. in normoglycemic rats

In the present study aqueous and ethanolic extract of leaves of Urtica parviflora were evaluated for hypoglycemic effect in normal rats using both 18 hr fasted rat model and oral glucose tolerance test. The aqueous extract of leaves showed a good hypoglycemic response in both the models, while ethanolic extract exhibited very week but insignificant effect, only in 18 hr fasted rat model. The aqueous extract was further tested for effect on intestinal glucose absorption. The amount of glucose absorbed in a segment of jejunum in situ was 13±0.75 mg in presence of aqueous extract vs. vs. 9.05±0.68 mg in control rats during 2 h (P<0.05). Phytochemical screening of aqueous extract revealed the presence of alkaloids, reducing sugars, polysaccharides, tannins, saponins, glycosides and flavonoids. The results indicate that aqueous extract possess significant hypoglycemic activity which may be attributed to, in part by reduction of intestinal glucose absorption by the abovementioned chemical constituents.Keywords: Hypoglycemic activity, Urtica parviflora, Oral glucose tolerance tes

Replacement of concentrate mixture with different levels of water hyacinth (Eichhornia crassipes) in basal diet on feed intake and production performance of piglets

An experiment was conducted on weaned piglets at Piggery Research Unit of Regional Agricultural Research Station (RARS), Tarahara, Sunsari from 12 September to 4 December 2019 for 84 days after adjustment period of seven days. Twenty piglets after weaning of 4-6 months age were allocated into four treatments each with 5 replications by using Completely Randomized Design. Four type of experimental diets were composed for experimental piglets. Piglets of T1 (control) group were provided adlib concentrate mixture, 95% concentrate feed + 5% water hyacinth (WH) were given to T2 group, 90% concentrate feed + 10 WH were offered to T3 group and piglets of T4 group were fed 85% concentrate feed + 15% WH as per their daily requirement. Feed and water hyacinth intake were recorded daily and body weight gain was measured once a week. Experiment revealed that feed and WH intake was highly significant (p<0.001) among treatment groups. Highest total body weight gain was obtained in control group (T1) (37.66 kg) followed by T3 (34.91 kg) and T2 (34.25 kg) which was non-significant among diet groups. Similarly, highest average daily gain was observed higher for T1 (control) group (448 g /day) followed by T3 and T2 group (415.59 and 407.73 g/day, respectively). Feed Conversion Ratio (FCR) was observed almost similar in all treatment groups (1:2 kg). Experiment suggested that concentrate mixture can be safely replaced with WH up to 15% without any adverse effect on body weight gain

Technology Analysis of Concentrated Solar Thermal Power

The current society much more taking interest in green energy and their energy system which are liable to being modified to achieve more efficiency and to sharply decrease CO2 emissions (5%below 1990 level ). INDIA is a fast growing country for utilizing solar energy. Form this paper we got to know about basic CSP technologies and their implementation preferable in India by using of SAM( System Advisor Model ) . It includes some basic facts and assessment  methodology and market challenging on basis of rebellion in energy sector ,prospect to be an alternative huge power generation an assessment of old conventional power plant .Here also specify about theoretically electrical output which help to choose the technology . There small uses in thermal power plant which is also taken a lot of importance  as increases in efficiency and cost reduction in term of generation and GHG’s emission with reducing of mass of coal. Keyword: CSP technology and their types, system advisor model (SAM), appropriate CSP technology for India, Application in thermal power plant