Four new species from the Agrilus wittemani species-group (Coleoptera: Buprestidae: Agrilini) from Silent Valley National Park, Southern Western Ghats, Kerala, India

Seena S.,Anand P.P.,Shibu Vardhanan Y. 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.2

The Agrilus wittemani species-group comprising six species from South and Southeast Asia; two of these are endemic to south India. Four new species of A. wittemani species-group Jendek & Nakládal, 2017 are described in this paper: Agrilus keralensis Seena, Anand and Shibu-Vardhanan sp. nov.; A. palakkadensis Seena, Anand and Shibu-Vardhanan sp. nov.; Agrilus sahyadriensis Seena, Anand and Shibu-Vardhanan sp. nov.; A. silentvalleyensis Seena, Anand and Shibu-Vardhanan sp. nov. A key to all species is provided and complemented with illustra tions of habitus and genitalia.

Programming in MikroBasic for Automation in Pattern Based Manufacturing

Punit Anand,Anand M Sharan 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.11

In this work the microcontroller is programmed in MikroBasic where the pattern shape is first determined using Fast Fourier Transforms offline and then the Fourier Coefficients are embedded in the program to perform calculations online to obtain the desired pattern. The stepper motors are used for accurate manufacturing. The program shows that microcontrollers do have sufficient memory to incorporate complex programs for intricate shape production.

Outcomes of Vascular Resection and Reconstruction in Extremity Soft Tissue Sarcoma and Bone Tumors

Anand Chetan Shah,Vishnu Ramanujan,Krishna Muralidharan,Anand Raja 대한혈관외과학회 2021 Vascular Specialist International Vol.37 No.1

Purpose: This study aimed to evaluate and analyze the feasibility and the oncological and functional outcomes of limb salvage surgery in extremity soft tissue sarcomas (ESTS) and bone tumors invading vessels. Materials and Methods: This single-center retrospective analysis included patients with ESTS encasing or invading major blood vessels that were treated by limb salvage surgery with vascular resection and reconstruction between January 1995 and December 2019. Patients with contiguous involvement of major blood vessels and nerves and patients requiring amputation were excluded from the study. Results: A total of 24 vessels (14 arteries and 10 veins) in 14 patients were reconstructed. Ten (71.4%) patients underwent both arterial and venous reconstruction, and four (28.6%) underwent only arterial reconstruction. Reconstruction was performed with a reversed saphenous vein (RSV) graft in 12 patients and with a synthetic graft (SG) in the other 12 patients. At a median follow-up of 27 months, RSV grafts were patent in 10 of 12 (83.3%) vessels and SGs were patent in 6 of 12 (50.0%) vessels (log-rank test, P=0.083). Out of 14 arteries and 10 veins, 11 arteries and 5 veins were patent, respectively. No patient developed local recurrence, and 2 (14.3%) patients developed distant metastases. Limb salvage rate was 13/14 (92.9%). The mean Musculoskeletal Tumor Society score was 83.3%. The 5- and 10-year overall survival rates were 80% and 50%, respectively. Conclusion: Limb salvage surgery in ESTS with vascular resection and reconstruction is feasible and provides favorable oncological and functional outcomes.

Does Sarcopenia Increase the Risk for Fresh Vertebral Fragility Fractures?: A Case-Control Study

Ashish Anand,Ajoy Prasad Shetty,K. R. Renjith,Sri Vijay Anand K. S.,Rishi Mugesh Kanna,Shanmuganathan Rajasekaran 대한척추외과학회 2020 Asian Spine Journal Vol.14 No.1

Study Design: Case-control study. Purpose: Sarcopenia is an age associated condition characterized by decrease in muscle mass, strength, and physical performance. We aimed to investigate whether sarcopenia increased the risk of vertebral fragility fractures among the elderly. Overview of Literature: Initial reports on sarcopenia suggest its contribution to the development of vertebral fragility fractures. However, recent studies showed contradictory findings. Methods: Fifty-one consecutive patients with vertebral fragility fractures and matched controls without fractures were evaluated for sarcopenia, T-score, body mass index, and presence of preexisting vertebral fractures. Sarcopenia was diagnosed as total psoas cross-sectional area (TPA) 2 standard deviations below normative value from normal young adults and decreased handgrip strength (26 kg for men and 18 kg for women). Univariate and multivariate analyses were performed using the fresh fracture occurrence as the dependent variable. Results: Sarcopenia was confirmed in 29.4% and 7.8% of cases and controls (p=0.005), respectively; 56.8% and 13.7% of cases and controls had previous vertebral fractures. Sarcopenia prevalence was greater among those with previous fractures (38% vs. 7.6%; odds ratio, 7.76; p<0.001). TPA was lower among the cases (1,278 mm2 vs. 1,569 mm2, p=0.001) and those with previous fractures (1,168 mm2 vs. 1,563 mm2, p<0.001). Handgrip strength was greater among those without previous fractures (19.6 kg vs. 16.3 kg, p=0.05). In multivariate analysis, sarcopenia was not identified as a significant predictor of fresh fractures whereas previous fractures and lower T-score were found to be significant. Conclusions: Sarcopenia is not an independent risk factor for fresh vertebral fragility fractures in the elderly.

Fatigue Life Validation and Analysis of Connecting Rod

Anand. D. Dantale,Ashok. J. Keche 보안공학연구지원센터 2014 International Journal of Hybrid Information Techno Vol.7 No.6

The connecting rod in four stroke reciprocating diesel engine is subjected to variable loading when Engine is in operating condition. The design of connecting rod is critical for the engine Performance, fatigue life, linear vibration & durability of engine. The fatigue failure is occurred due to alternating compressive & tensile stresses during its two revolutions. The fuel combustion inside cylinder generates a huge compressive force at power stroke. The 3D model is prepared and CAE analysis is done to predict the maximum Stresses and check whether it is safe for fatigue failure. The modification in design is done to make it safe for fatigue life. The experimental Fatigue testing is carried out to validate the predicted & Actual fatigue life of connecting rod.

An Enhanced Cellular Automata based Scheme for Noise Filtering

Anand Prakash Shukla,Suneeta Agarwal 보안공학연구지원센터(IJSIP) 2014 International Journal of Signal Processing, Image Vol.7 No.4

An improved sparsity-aware normalized least-mean-square scheme for underwater communication

Anand Kumar,Prashant Kumar 한국전자통신연구원 2023 ETRI Journal Vol.45 No.3

Underwater communication (UWC) is widely used in coastal surveillance and early warning systems. Precise channel estimation is vital for efficient and reliable UWC. The sparse direct-adaptive filtering algorithms have become popular in UWC. Herein, we present an improved adaptive convex-combination method for the identification of sparse structures using a reweighted normalized leastmean-square (RNLMS) algorithm. Moreover, to make RNLMS algorithm independent of the reweighted l1-norm parameter, a modified sparsity-aware adaptive zero-attracting RNLMS (AZA-RNLMS) algorithm is introduced to ensure accurate modeling. In addition, we present a quantitative analysis of this algorithm to evaluate the convergence speed and accuracy. Furthermore, we derive an excess mean-square-error expression that proves that the AZA-RNLMS algorithm performs better for the harsh underwater channel. The measured data from the experimental channel of SPACE08 is used for simulation, and results are presented to verify the performance of the proposed algorithm. The simulation results confirm that the proposed algorithm for underwater channel estimation performs better than the earlier schemes.

Partially Distributed Dynamic Model for Secure and Reliable Routing in Mobile Ad hoc Networks

Anand, Anjali,Aggarwal, Himanshu,Rani, Rinkle The Korea Institute of Information and Commucation 2016 Journal of communications and networks Vol.18 No.6

A mobile ad hoc network (MANET) is a collection of mobile nodes communicating in an infrastructure-less environment without the aid of a central administrating authority. Such networks entail greater dependency on synergy amongst the nodes to execute fundamental network operations. The scarcity of resources makes it economically logical for nodes to misbehave to preserve their resources which makes secure routing difficult to achieve. To ensure secure routing a mechanism is required to discourage misbehavior and maintain the synergy in the network. The proposed scheme employs a partially distributed dynamic model at each node for enhancing the security of the network. Supplementary information regarding misbehavior in the network is partially distributed among the nodes during route establishment which is used as a cautionary measure to ensure secure routing. The proposed scheme contemplates the real world scenario where a node may exhibit different kinds of misbehavior at different times. Thus, it provides a dynamic decision making procedure to deal with nodes exhibiting varying misbehaviors in accordance to their severity. Simulations conducted to evaluate the performance of the model demonstrate its effectiveness in dealing with misbehaving nodes.

Power Sharing and Cost Optimization of Hybrid Renewable Energy System for Academic Research Building

Anand Singh,Prashant Baredar 대한전기학회 2017 Journal of Electrical Engineering & Technology Vol.12 No.4

Renewable energy hybrid systems look into the process of choosing the finest arrangement of components and their sizing with suitable operation approach to deliver effective, consistent and cost effective energy source. This paper presents hybrid renewable energy system (HRES) solar photovoltaic, downdraft biomass gasifier, and fuel cell based generation system. HRES electrical power to supply the electrical load demand of academic research building sited in 23° 12’ N latitude and 77°24’E longitude, India. Fuzzy logic programming discover the most effective capital and replacement value on components of HRES. The cause regarding fuzzy logic rule usage on HOMER pro (Hybrid optimization model for multiple energy resources) software program finds the optimum performance of HRES. HRES is designed as well as simulated to average energy demand 56.52 ㎾h/day with a peak energy demand 4.4 ㎾. The results shows the fuel cell and battery bank are the most significant modules of the HRES to meet load demand at late night and early morning hours. The total power generation of HRES is 23,794 ㎾h/year to the supply of the load demand is 20,631 ㎾h/year with 0% capacity shortage.

A CoMFA Study of Quinazoline-based Anticancer Agents

Anand Balupuri, Pavithra K. Balasubramanian, Seung Joo Cho 조선대학교 기초과학연구원 2015 조선자연과학논문집 Vol.8 No.3

Cancer has emerged as one of the leading cause of deaths worldwide. A three-dimensional quantitative structure-activity relationship (3D-QSAR) analysis was performed on a series of quinazoline-based anticancer agents. Purpose of the study is to understand the structural basis for their inhibitory activity. Comparative molecular field analysis (CoMFA) technique was employed to develop 3D-QSAR model. Ligand-based alignment scheme was used to generate a reliable CoMFA model. The model produced statistically significant results with a cross-validated correlation coefficient (q2) of 0.589 and a non-cross-validated correlation coefficient (r2) of 0.928. Model was further validated by bootstrapping and progressive scrambling analysis. This study could assist in the design of novel and more potent anticancer agents.