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      • Evaluating the Potential Risks Associated With HR Outsourcing in Cross Sectional Industries – A Perspective of Employees

        Maheswara Reddy 한국문화관광학회 2018 문화관광연구 Vol.20 No.2

        This paper investigates the potential risks of HR outsourcing on the employee’s perceptions in the select IT companies as well as Pharmacy Companies in Hyderabad. The world of human resource management is changing more rapidly than we can imagine. Recognizing these challenges of the select industries, it has opened the space for assessing the employee’s perceptions and intentions towards outsourcing of facilities, services, and amenities to meet their job related needs. The tools applied in the study are; SRT, t test, ANOVA. This paper also suggests certain possible solution to the above said problem where the employees resist to outsourcing. Findings: There is a significant impact on organizational performance as well as on performance management system. HR outsourcing could not carry any potential risks with respect to concentrating more strategic performance, development planning and improved quality services of employee between IT and Pharmacy industries.

      • SCOPUSKCI등재

        Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones Using HClO<sub>4</sub>-SiO<sub>2</sub> as a Heterogeneous and Recyclable Catalyst

        Maheswara, Muchchintala,Oh, Sang-Hyun,Kim, Ke-Tack,Do, Jung-Yun Korean Chemical Society 2008 Bulletin of the Korean Chemical Society Vol.29 No.9

        A simple and efficient synthesis of 3,4-dihydropyrimidinones or thiones is described, using silica-supported perchloric acid ($HClO_4-SiO_2$) as a heterogeneous catalyst from an aldehyde, $\beta$-dicarbonyl compound, and urea or thiourea under solvent-free conditions. Compared to the classical Biginelli reactions, this method consistently has the advantage of high yields, short reaction time, easy separation, and tolerance towards various functional groups.

      • Evaluating the Potential Risks Associated With HR Outsourcing in Cross Sectional Industries - A Perspective of Employees

        D Maheswara Reddy 한국문화관광학회 2020 문화관광연구 Vol.22 No.2

        This paper investigates the potential risks of HR outsourcing on the employee’s perceptions in the select IT companies as well as Pharmacy Companies in Hyderabad. The world of human resource management is changing more rapidly than we can imagine. Recognizing these challenges of the select industries, it has opened the space for assessing the employee’s perceptions and intentions towards outsourcing of facilities, services, and amenities to meet their job related needs. The tools applied in the study are; SRT, t test, ANOVA. This paper also suggests certain possible solution to the above said problem where the employees resist to outsourcing. Findings: There is a significant impact on organizational performance as well as on performance management system. HR outsourcing could not carry any potential risks with respect to concentrating more strategic performance, development planning and improved quality services of employee between IT and Pharmacy industries.

      • Experimental Investigation of Surface Roughness Characteristics Ra, Rq and Rz

        Ch. Maheswara Rao,K.Venkatasubbaiah,K. Jagadeeswara Rao 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.7

        The challenge of modern machining industries is mainly to achieve high quality, in terms of dimensional accuracy, surface finish and high production rate. In the present work, an attempt has been made to explore the effect of EDM process parameters on various Surface Roughness characteristics Ra, Rq and Rz. The experiments have been done on medium carbon steel EN8 which has high applications in tool, oil and gas industries. For the experimentation, Pulse on time (PON), Pulse off time (POFF), Wire tension (WT) and Wire feed rate (WF) were considered as EDM inputs. Similarly, Surface roughness parameters Ra, Rq and Rz were taken as output characteristics. Taguchi’s standard L27 (3 level * 3 parameters) Orthogonal Array was used for conducting the experiments and optimization of multi responses was done by Grey analysis. From the Grey analysis, optimal combination of machining parameters for Surface Roughness characteristics was found at Pulse-on time (PON):131 μs (level 3), Pulse-off time (POFF):58 μs (level 2), Wire tension (WT):2 Kg-f (level 1) and Wire feed rate (WF):4 m/min (level 1). Analysis of variance was used to find the influence of process parameters on responses. From ANOVA of Grey Relational Grade, it is found that wire feed has high influence (F= 59.18) and pulse off time has very low influence (F= 2.50) in effecting the Surface Roughness parameters taken simultaneously. Regression models for the responses were prepared by using MINITAB-16 software. From the residual analysis, it is clear that the models prepared for the responses were more accurate, adequate and they can be used for prediction of surface roughness characteristics. Finally, the experimental and predicted values were compared and they found very close to each other.

      • Applicationof MCDM Approach-TOPSISfor the Multi-Objective Optimization Problem

        Ch.Maheswara Rao,K.Venkatasubbaiah 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.10

        In the present work, an investigation has been made to study the effect of cutting parameters (speed, feed and depth of cut) on the multi-responses, Material Removal Rate (MRR) and Surface Roughness (Ra). The experiments were done on a conventional lathe using a tungsten carbide tool under dry environment. Twenty seven alternative combinations of speed, feed and depth of cut were considered (as per Taguchi’s standard L27 Orthogonal Array) for the machining of medium carbon steel EN8. For the optimization of multi-responses, the Multi-criteria decision making (MCDM) method, TOPSIS has been employed. Main effect plot for the Signal-to-Noise (S/N) ratios of the relative closeness coefficient (Ci+) was drawn using the MINITAB-16 software. From the TOPSIS and the main effect plot drawn for the relative closeness coefficient (Ci+), the optimal combination of the multi-responses were found at 27th alternative i.e. speed at 760 rpm, feed at 0.3 mm/rev and depth of cut at 1.5 mm respectively. The analysis of variance (ANOVA) has been done to know the influence of cutting parameters on the multi-responses. From the ANOVA results of the relative closeness coefficient (Ci+), it is found that the feed has high influence (F =41.08) followed by the depth of cut (F =25.78) and speed (F = 22.55).

      • Application of WSM, WPM and TOPSIS Methods for the Optimization of Multiple Responses

        Ch. Maheswara Rao,K. Venkatasubbaiah 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.10

        Multi-criteria(or) attribute decision making (MCDM/MADM) methods have very high applications inindustriesforsolving real world engineering problems. In the present work, MCDM methods of Weighted summethod (WSM), Weighted ProductMethod (WPM) and TOPSIS, have been employed for the computational analysis of multi-responses. AA7075 has been taken as work piece for the experimentation and the experiments were done on CNC lathe as per the Taguchi’s standard L9 Orthogonal Array. The cutting parameters of speed, feed and depth of cut were taken as experimental inputs and Material Removal Rate (MRR) and Surface Roughness (Ra) were considered as responses. From the Weighted sum method (WSM) and Weighted ProductMethod (WPM) the optimal combination for multi-responses werefound at ninth alternative,i.e. speed: 2000 rpm, feed: 0.4 mm/rev and depth of cut: 0.75 mm. Similarly, from the TOPSIS results, the optimal combination for multi-responses werefound at seventh alternative,i.e. speed: 2000 rpm, feed: 0.2 mm/rev and depth of cut: 1 mm. Analysis of variance (ANOVA) has been done by using MINITAB-16 statistical software to find the influence of cutting parameters on the multi-responses. From the ANOVA results of WSM, WPM and relative closeness coefficient (Ci+), it is found that feed rate has high influence (For WSM, WPM and Ci+the F values are 60.50, 60.30 and 91.42 respectively) in affecting the multi-responses.

      • Evaluating the Potential Risks Associated With HR Outsourcing in Cross Sectional Industries – A Perspective of Employees

        D Maheswara Reddy 세계문화관광학회 2018 International Journal of Culture and tourism Resea Vol.11 No.1

        This paper investigates the potential risks of HR outsourcing on the employee’s perceptions in the select IT companies as well as Pharmacy Companies in Hyderabad. The world of human resource management is changing more rapidly than we can imagine. Recognizing these challenges of the select industries, it has opened the space for assessing the employee’s perceptions and intentions towards outsourcing of facilities, services, and amenities to meet their job related needs. The tools applied in the study are; SRT, t test, ANOVA. This paper also suggests certain possible solution to the above said problem where the employees resist to outsourcing. Findings: There is a significant impact on organizational performance as well as on performance management system. HR outsourcing could not carry any potential risks with respect to concentrating more strategic performance, development planning and improved quality services of employee between IT and Pharmacy industries.

      • KCI등재

        실리콘, 게르마늄, 주석이 결합된 고굴절를 아크릴 고분자의 합성

        마해스와라(Muchchintala Maheswara),도정윤(Jung Yun Do) 한국고분자학회 2010 폴리머 Vol.34 No.6

        실리콘, 게르마늄, 주석이 결합된 7개의 아크릴 단량체가 개발되었고 이를 광경화시킨 필름의 굴절률을 측정하였다. 공단량체로 가교도가 높은 triacrylate(Trimer)를 사용하여 형성된 공중합체의 굴절률로부터 단일중합체의 굴절률을 계산하였다. 공유 결합된 Ph3Si, Ph3Ge, Ph3Sn은 각각 아크릴 고분자 필름의 굴절률을 향상시키는데 기여하였고 주석이 게르마늄에 비해 약간 높은 기여도로 나타났다. 주석에 의한 굴절률 향상 효과는 Bu3Sn을 도입한 결과와 aliphatic acrylate의 비교로 보다 명확하게 입증되었다. 주석과 황의 안정된 결합을 이용하여 Ph3SnS가 도입된 아크릴 고분자의 굴절률은 589 nm에서 1.671로 높게 측정되었다. 측정 파장으로 656, 830, 1310, 1550 nm에서도 비슷한 굴절률이 관찰되었다. New seven acrylic monomers with covalently bonded silicon, germanium, and tin were prepared for high refractive index materials. The monomers were copolymerized with a cross-linkable comonomer (Trimer) to prepare UV-films for optical characterization. The refractive index of the copolymers increased in proportion to the monomer content and extrapolated to determine that of homopolymer. Ph3Si, Ph3Ge, and Ph3Sn groups contributed to increase the refractive index of acrylic polymer, in which Ph3Sn was more effective than Ph3Ge. The index increment confidently occurred with Bu3Sn attachment in comparison with aliphatic acrylic polymers. Ph3SnS-attached acrylate polymer showed a refractive index of 1.671 at 589 nm. The index change was similarly observed at various different wavelengths (656, 830, 1310, and 1550 nm).

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