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Biological Control of Mulberry Root Knot Nematode Meloidogyne incognita by Trichoderma harzianum
Sukumar, J.,Padma, S.D.,Bongale, U.D. Korean Society of Sericultural Science 2004 International Journal of Industrial Entomology Vol.8 No.2
Trichoderma harzianum-THN1 parasitising the egg masses of root knot nematode Meloidogyne incognita was isolated from galled mulberry roots and evaluated for its potential to control root knot disease. In pot experiments root galling was reduced and leaf yield increased significantly following soil treatment with T. harzianum-THN1. The extracts obtained from the soils inoculated with T. harzianum-THN1 drastically inhibited the hatching of nematode eggs and the effect was irreversible even after the eggs were transferred to fresh water. The fungus was equally effective in controlling the disease in nematode infested mulberry garden under field conditions which was significant over the most commonly used egg parasitic fungus Paecilomyces lilacinus. The disease reduction recorded with T. harzianum was on par with the plants treated with the nematicide Carbofuran. The results suggest that T. harzianum- THN1 could be used as a potent ecofriendly biocontrol agent against M. incognita in mulberry without any residual toxicity to silkworms. T. harzianum- THN1 can form an important component of integrated disease management package in mulberry cultivation.
( Sukumar Shanmugam ),( Lawrence Mathias ),( Ajay Thakur ),( Dhanesh Kumar ) 대한통증학회 2016 The Korean Journal of Pain Vol.29 No.2
Myofascial pain syndrome (MPS) is one of the common musculoskeletal conditions of the shoulder which may develop sensory-motor and autonomic dysfunctions at the various level of the neuromuscular system. The pain and dysfunction caused by MPS were primarily treated with physical therapy and pharmacological agents in order to achieve painfree movements. However, in recent years intramuscular electrical stimulation (IMES) with conventional electrode placement was used by researchers to maximise therapeutic values. But, in this study an inverse electrode placement was used to deliver electrical impulses intramuscularly to achieve neuro-modulation at the various level of the nervous system. Nine patients with MPS were treated with intramuscular electrode stimulation using inversely placed electrodes for a period of three weeks. All nine subjects recovered from their shoulder pain and disability within the few weeks of intervention. So, this inverse electrode placement may be more appropriate for chronic pain management. (Korean J Pain 2016; 29: 136-40)
Numerical Solution for Robot Arm ProblemUsing Limiting Formulas of RK(7,8)
SUKUMAR SENTHILKUMAR 한국전산응용수학회 2008 Journal of applied mathematics & informatics Vol.26 No.3-4
The aim of this article is focused on providing numerical so-lutions for system of second order robot arm problem using the RK-eightstage seventh order limiting formulas. The parameters governing the armmodel of a robot control problem have also been discussed through RK-eight stage seventh order limiting algorithm. The precised solution of thesystem of equations representing the arm model of a robot has been com-pared with the corresponding approximate solutions at dierent time in-tervals. Results and comparison show the eciency of the numerical in-tegration algorithm based on the absolute error between the exact andapproximate solutions. Based on the numerical results a thorough compar-ison is carried out between the numerical algorithms.AMS Mathematics Subject Classication: 65L10, CR G1.7Key-words: RK-eight stage seventh order limiting formulas, Ordinary Dif-ferential Equations, Singular Systems and Robot arm Problem.
Sukumar Gautham Melur,Roy Runalika,Philip Mariamma,Gopalkrishna Gururaj 대한예방의학회 2023 예방의학회지 Vol.56 No.5
Objectives: Work stress is associated with non-communicable diseases, increased healthcare costs, and decreased work productivity among employees in the information technology sector. There is a need for regular work-stress screening among employees using valid and reliable tools. The Tool to Assess and Classify Work Stress (TAWS-16) was developed to overcome limitations in existing stress assessment tools in India. This study aimed to test the reliability of TAWS-16 in a sample of managerial-supervisory employees.Methods: This observational reliability study included data from 62 employees. Test-retest and inter-method reliability were investigated using a TAWS-16 web application and interview by telephone, respectively. Kappa values and intra-class correlation coefficients were calculated. Internal consistency was assessed through Cronbach’s alpha.Results: For both test-retest and inter-method reliability, the agreement for both work-related factors and symptoms suggestive of work stress exceeded 80%, and all kappa values were 0.40 or higher. Cronbach’s alpha for test-retest and inter-method reliability was 0.983 and 0.941, respectively.Conclusions: TAWS-16 demonstrated acceptable reliability. It measured stressors, coping abilities, and psychosomatic symptoms associated with work stress. We recommend using TAWS-16 to holistically identify work stress among employees during periodical health check-ups in India.