46 research outputs found
Study of Short Channel Effects in n-FinFET Structure for Si, GaAs, GaSb and GaN Channel Materials
In this paper a study of various short channel effects (SCE’s) of double gate n-FinFET structure as a function of scaling parameters for Si, GaAs, GaSb and GaN channel materials has been evaluated and presented. The simulation results presented are based on the self consistent solution of Poisson and drift-diffusion equations. In the model the carrier velocity is assumed to be saturated in the channel for all the materials. Gate length (Lg) and channel width (Wch) dependence of the various short channel effects viz., Drain Induced Barrier Lowering (DIBL), Subthreshold Slope (SS) and threshold voltage roll-off of these devices using the said materials have been studied and presented
Analytical study of training needs of olive growers in various subject matter areas of olive cultivation in Uri Block of district Baramulla, J&K, India
The main purpose of this study was to know the training needs of olive growers in different subject matter areas of olive cultivation undertaken in Uri block of district Baramulla of Jammu and Kashmir State. A sample size of 150 respondents was randomly selected from 5 villages and from each village 30 farmers were selected randomly. It was observed during the study that majority of farmers require training and with emphasis on latest transfer of technology in establishing olive farm, procurement of root stocks of improved varieties, soil management,proper spacing and planting, manures and fertilizers, irrigation and drainage, insect-pests and diseases, harvesting and marketing, etc. The area of insect-pests and diseases require high training need followed by soil management, selection of varieties, manures and fertilizers, harvesting and marketing, irrigation and drainage, establishing olive farm and procurement of root-stocks of improved varieties. Therefore, the study has highlighted the need for restructuring the training programme to benefit the olive growers in the region. Such an approach would boost production and generate additional income for the orchardists
Disease and pest management in apple: Farmers' perception and adoption in J&K state
Diseases and pests are one of the limiting factors for low productivity of the fruit crops in Kashmir valley, India. A study on management of resources with respect to disease and pest management of apple and extent of adoption of recommended plant protection technology was undertaken for increasing apple production in Kashmir valley of J and K State. District Baramulla was selected purposively on the basis of maximum area and production under apple crop. A sample size of 200 apple growers 50 each from 4 villages were selected randomly. The study revealed that the perception index regarding attributes of technology recommended in two diseases viz. San Jose Scale and Apple Scab was 68.88% and 80.76% in respect of profitability (83.97%), simplicity-complexity each 63.57% and 54.27 % for practicability attributes of technology. The data further showed that the farmers adoption level under Chemical control was high at silver tip to green tip stage (80%) and fruit let pea size stage (78%) and medium adoption was observed at pink bloom (bud) stage (74%), petal fall stage (74%) walnut size apple stage (70%) on Apple Scab similarly, the extent of adoption was low (45%) for mechanical and no chemical control measures under clean cultivation. In case of San Jose Scale the farmers adoption level regarding name of chemical, its dose, quantity of water required per acre for preparing spray solution and time of spray at late dormant spray, (feb, March) was high (80%). The findings will help to improve the level of farmers’ knowledge to increase apple production in Kashmir valley
Study of Short Channel Effects in n-FinFET Structure for Si, GaAs, GaSb and GaN Channel Materials
In this paper a study of various short channel effects (SCE’s) of double gate n-FinFET structure as a function of scaling parameters for Si, GaAs, GaSb and GaN channel materials has been evaluated and presented. The simulation results presented are based on the self consistent solution of Poisson and drift-diffusion equations. In the model the carrier velocity is assumed to be saturated in the channel for all the materials. Gate length (Lg) and channel width (Wch) dependence of the various short channel effects viz., Drain Induced Barrier Lowering (DIBL), Subthreshold Slope (SS) and threshold voltage roll-off of these devices using the said materials have been studied and presented
Effect of Modified Atmosphere Packaging on Maintenance of Quality in Apple
An experiment was conducted to study the effect of modified atmosphere packaging (MAP) on the quality of 'Red Delicious' and 'Golden Delicious' apples. Freshly harvested fruits were wiped clean and (25 μm thick) with varying number of perforations and stored in cardboard boxes at ambient temperature. 'Golden Delicious' showed higher incidence of bitter pit as compared to 'Red Delicious' apples. MAP proved effective in controlling the bitter pit disorder and in maintenance of quality. The least incidence of bitter pit in 'Golden Delicious' was recorded with T4 (30 x 2 mm perforation) and T3 (20 x 2 mm) treatment in 'Red Delicious' apples. However, MAP retained more freshness in 'Golden Delicious' than in 'Red Delicious'
Oksidacijski stres, hematološko-biokemijski nalaz, elementi u tragovima i vitamini u pasa s cinkom izlječivom dermatozom.
The aim of this study was to examine the hemato-biochemical alterations and evaluate the oxidative stress indices in the blood of dogs with zinc responsive dermatosis. The study included 9 dogs with clinically established diagnosis of zinc responsive dermatosis and 6 dogs as a healthy control. The clinical disease was characterized by alopecia, erythema, hyperkeratotic foot pads and scaling around the eyes, chin, eyes, head and legs. The MDA levels were significantly (P<0.01) higher, whereas superoxide dismutase and catalase activity were significantly (P<0.01) lower when compared to healthy control dogs. Hematology revealed significant neutrophilia and lymphopenia, along with anemia. Biochemical examination revealed a significant (P<0.05) decrease in albumin, A:G ratio and glucose levels, and a significant increase (P<0.05) in globulin level. Plasma zinc, vitamin A and C were significantly decreased, however copper levels were increased. In conclusion, zinc responsive dermatosis is accompanied by oxidative stress and anemia, and affected animals are susceptible to infection.Istraživanje je provedeno radi određivanja hematološko-biokemijskih poremećaja i prosudbe pokazatelja oksidacijskog stresa u krvi pasa s cinkom izlječivom dermatozom. U istraživanje je bilo uključeno devet pasa s kliničkom dijagnozom dermatoze izlječive cinkom i šest zdravih kontrolnih pasa. Klinički se bolest očitovala alopecijom, eritemom, hiperkeratozom mekuši, ljuštenjem oko očiju, po bradi, glavi i nogama. Razine malondialdehida bile su značajno veće (P<0,01), dok je aktivnost superoksidne dismutaze i katalaze bila značajno manja (P<0,01) u usporedbi sa zdravom kontrolnom skupinom pasa. Hematološki nalazi pokazali su znatnu neutrofiliju, limfopeniju i anemiju. Biokemijskom pretragom ustanovljen je značajan pad koncentracije albumina (P<0,05), omjera A:G i razine glukoze te značajno povećanje razine globulina (P<0,05). Cink u plazmi, vitamin A i C bili su značajno smanjeni dok su razine bakra bile povećane. Zaključuje se da je dermatoza izlječiva cinkom također popraćena oksidacijskim stresom, anemijom, a zahvaćene životinje osjetljivije su na infekciju
Classification and Comparative Study of Routing Techniques in Adhoc Wireless Networks
Wireless systems have been in use since 1980s. We have seen their evolutions to first, second and third generation's wireless systems. Wireless systems operate with the aid of a centralized supporting structure such as an access point. These access points assist the wireless users to keep connected with the wireless system, when they roam from one place to the other.
The presence of a fixed supporting structure limits the adaptability of wireless systems. In other words, the technology cannot work effectively in places where there is no fixed infrastructure. Future generation wireless systems will require easy and quick deployment of wireless networks. This quick network deployment is not possible with the Infrastructured wireless systems.
Recent advancements such as Bluetooth introduced a new type of wireless systems known as ad-hoc networks. Ad-hoc networks or "short live" networks operate in the absence of fixed infrastructure. They offer quick and easy network deployment in situations where it is not possible otherwise. Ad-hoc is a Latin word, which means "for this or for this only." Mobile ad-hoc network is an autonomous system of mobile nodes connected by wireless links; each node operates as an end system and a router for all other nodes in the network.
Nodes in ad-hoc network are free to move and organize themselves in an arbitrary fashion. Each user is free to roam about while communication with others. The path between each pair of the users may have multiple links and the radio between them can be heterogeneous. This allows an association of various links to be a part of the same network.
A mobile ad-hoc network is a collection of mobile nodes forming an ad-hoc network without the assistance of any centralized structures. These networks introduced a new art of network establishment and can be well suited for an environment where either the infrastructure is lost or where deploy an infrastructure is not very cost effective. The popular IEEE 802.11 "WI-FI" protocol is capable of providing ad-hoc network facilities at low level, when no access point is available. However in this case, the nodes are limited to send and receive information but do not route anything across the network. Ad-hoc networks can operate in a standalone fashion or could possibly be connected to a larger network such as the Internet.
An ad-hoc network has certain characteristics, which imposes new demands on the routing protocol. The most important characteristic is the dynamic topology, which is a consequence of node mobility. Nodes can change position quite frequently; the nodes in an ad-hoc network can consist of laptops and personal digital assistants and are often very limited in resources such as CPU power, storage capacity, battery power and bandwidth. This means that the routing protocol should try to minimize control traffic, such as periodic update messages. The Internet Engineering Task Force currently has a working group named Mobile Ad-hoc Networks that is working on routing specifications for ad-hoc networks. This M.Phill thesis evaluates some of the protocols put forth by the working group. This evaluation is done by means of simulation using Network simulator 2 from Berkeley.
This work aims at classification of the existing routing protocols of adhoc wireless networks using some definite parameters. After classification of routing protocols of adhoc wireless network, their comparative study was undertaken in order to yield category wise distribution. Furthermore performance evaluation of these protocols was carried out by employing different parameters like fading models, mobility models, traffic patterns etc using the network simulator NS-2
Hence I explore and evaluate different methods for validation of ad hoc routing protocols which are used to set up forwarding paths in spontaneous networks of mobile/Adhoc devices to accomplish the above mentioned comparative study and classification
Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial
Background: The EMPA KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. Methods: EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. Findings: Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5–2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62–0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16–1·59), representing a 50% (42–58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). Interpretation: In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. Funding: Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council