Informatics Publishing Limited

R. S. Chandel , N. P. Bhrot

Abstract

No abstract

Full Text

     

I. B. Singh ¹, A. A. Ansari ¹, R. S. Chandel ¹, A. Misra ¹

Affiliations
1 Department of Geology, Lucknow University, Lucknow-226 007, IN

Abstract

Study of remotely sensed data and SOl topographical maps with some field observations has helped in the identification of lineaments controlling the drainages, using various indications like displacement of Siwalik hills, skewness of fan surfaces, preferential alignment of river channel, knick points, distorted meanders, abrupt change in river courses, escarpments and asymmetrical terraces. The northern part of the Gangetic plain, the Piedmont zone shows two major lineaments, i.e. NNE-SSW and NW-SE, developed as conjugate strike slip features, with some evidences of gravity component. The NW-SE direction of the conjugate system is very prominent in Central Alluvial Plain and has controlled the major drainages. These lineaments have caused abrupt change in flow directions of many streams; and in parts, have behaved as gravity fault with NE blocks as downthrown side. The drainage in the Marginal Alluvial Plain (southern part) is essentially controlled by the reactivated basement lineaments of predominantly SW-NE direction. The drainage of northern and central part of Gangetic plain is controlled by newly developed lineaments formed due to compressional stresses of the Himalaya while drainage in southern part is controlled by reactivated basement lineaments.

Keywords

Neotectonics, Drainage, Lineaments, Gangetic Plain, Uttar Pradesh.

Full Text

     

R. S. Chandel ¹, Monika Kalia ¹, Saurbh Soni ¹, P. K. Mehta ¹

Affiliations
1 Department of Entomology, CSK HPKV Palampur, 176062, HP, IN

Abstract

Survey to isolate and identify the entomopathogenic fungi associated with whitegrubs was conducted in Himachal Pradesh during 2008 and 2009. The whitegrubs were collected from 14 locations and Beauveria bassiana (Bals.) was found to be associated with grubs of Brahmina coriacea (Hope) in Shillaroo and Kheradhar areas. The fungus infected grubs were observed only in higher hills of Shimla and Sirmour districts. At Shillaroo, 0.98% grubs of B. coriacea were observed to have fungal infection, whereas at Kheradhar 20.2% of the grubs showed symptoms of mycosis. When field collected grubs were reared separately location- wise in laboratory, very high percentage of mycosis (55.29%) was recorded. Kheradhar and Shillaroo populations of whitegrubs showed white muscardiane infestation in 8.72 and 5.27% of the grubs, respectively. Conidia of the fungus were globose to subglobose measuring 2.0-3.0×2.0-2.5 μm. Incubation of Shillaroo, Kheradhar, Kharapathar and Solan isolates was done at 20, 22 and 26 °C. After 15 days, the radial growth of Shillaroo isolate of B. bassiana was recorded to be 7.66 cm as compared to 7.60, 7.60 and 7.36 cm for Kharapather, Solan and Kheradhar isolates, respectively.

Keywords

Beauveria bassiana, Brahmina coriacea, Entomopathogenic Fungi, Whitegrubs.

Full Text

   

R. S. Chandel ¹

Affiliations
1 Centre of Mineral and Energy Technology, Physical Metallurgy Research Laboratories , Ottawa, CA

Abstract

The effect of welding current, arc voltage, electrode diameter, electrical stickout and flux type on the wire feed speed during AC submerged-arc-welding has been studied. The results show that wire feed speed is influenced by welding current, electrode diameter and electrical stickout. A mathematical model to predict wire feed speed from welding parameters has been developed from the data.

Full Text

     

R. S. Chandel

Abstract

There are many techniques for assessing the properties of spot welds, for example, destructive vs. nondestructive tests; qualitative vs. quantitative tests; tests for quality control vs. information for design; static vs. dynamic tests; and shear vs. tension tests etc.

Full Text

     

Shashank Swami ¹, R. S. Thakur ², R. S. Chandel ³

Affiliations
1 MP Bhoj University, Bhopal, IN
2 MaNIT, Bhopal, MP, IN
3 Geetanjali Girls College, Bhopal, MP, IN

Abstract

Aiming at the smoking habits of youth in India, we collected the data from a survey, on which we form the multidimensional association rule and its model of smoking habits. Multidimensional association rule field of data mining is applied to discover the various habits and circumstances in smoking habits of youth. Based on the above approach we can take some preventive measures to reduce the various habits of smoking in youths.

Keywords

Smoking Habit, Data Mining, Multidimensional Association Rule.

Full Text

   

R. S. Chandel ¹

Affiliations
1 Division of Materials Engineering, School of Applied Science Nanyang Technological University, Singapore-639798, SG

Abstract

Wear is the most important cause of component material loss and degradation in mining and mineral processing operations. Such degradation necessitates substantial maintenance effort along with scheduled and unscheduled interruptions in production.

Full Text

     

R. S. Chandel ¹

Affiliations
1 Division of Material Engineering, School of Applied Science, Nanyang Technological University, Singapore - 639798, IN

Abstract

This is the second article in this series. This article discusses the fusion welding processes that are suitable for depositing hardfacings. These will be described with respect to their operating characteristics, consumable availability for these processes and the metallurgical characteristics of these deposits. Factors influencing the process selection will also be discussed.

Full Text

     

R. S. Chandel ¹

Affiliations
1 Division of Materials Engineering, School of Applied Science, Nanyang Technological University - 639798, SG

Abstract

For a user, the ideal hardfacing deposit is one that will resist all types of wear described earlier. In reality the formulation and selection of consumables is governed by the predominant wear mode and by the economic considerations. These factors have led to the development and availability of a large number of hardfacing consumable compositions in a variety of forms.

Full Text

     

Zuruzi Bin Abu Samah ¹, R. S. Chandel ¹, T. Sritharan ¹

Affiliations
1 Division of Materials Engineering, School of Applied Science Nanyang Technological University, Singapore 639 798, SG

Abstract

The requirements placed on welding fluxes and the resulting slag are numerous. For instance the flux and the resulting slag must be able to contribute to arc stability, weld metal alloying, weld metal deoxidation, weld metal protection, ease of slag detach- ability, control of inclusions due to slag entrapment, hence the resulting mechanical properties, control of porosity, facilitating welding in various positions, among others (1, 2, 3). However, these requirements can be better fulfilled only if there is a good understanding of the many reactions occurring simultaneously at the slag metal interface during welding (1). This is because there are extremely complex interconnections between the aforementioned requirements and the reactions occurring at the slag metal interface. The aim of this article, therefore, is to present a simple overview of slag-metal reactions occurring during submerged arc welding.

Full Text

     

Abhishek Rana ¹, R. S. Chandel ¹, K. S. Verma ¹

Affiliations
1 Department of Entomology, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN

Abstract

The efficacy of six insecticides namely chlorpyriphos 20 EC (5.0 ml/kg seed), imidacloprid 17.8 SL (5.0 ml/kg seed), clothianidin 50 WDG (3.5 g/kg seed), thiamethoxam 25 WG (3.5 g/kg seed), bifenthrin 10 EC (2.5 ml/kg seed) and chlorantraniliprole 18.5 SC (2.5 ml/kg seed) as seed treatment was tested against grubs of Melolontha indica Hope under laboratory conditions. Rajmash, Phaseolus vulgaris L. was used as test crop. The experiment was conducted in plastic trays filled with soil and farm yard manure (FYM) in 3:1 ratio. In each tray, ten third instar grubs of M. indica were released and 20 treated rajmash seeds were sown at a depth of about 5 centimeter. The results revealed that plants from chlorantraniliprole 18.5 SC (2.5 ml/kg seed) treated seeds registered least mortality (20.0 %), followed by chlorpyriphos 20 EC (5 ml/kg seed) (21.67 %) at 10 days after sowing (DAS). The grub mortality recorded in seeds treated with chlorantraniliprole 18.5 SC (2.5 ml/kg seed) and chlorpyriphos 20 EC (5 ml/kg seed) was 56.67 and 46.67 per cent, respectively at 20 DAS. Therefore, seed treatment with chlorantraniliprole 18.5 SC (2.5 ml/kg seed) could be another alternative in addition to chlorpyriphos 20 EC (5 ml/kg seed) for effective management of M. indica grubs infesting rajmash under field conditions in high hills of north western Himalaya.

Keywords

Insecticides, Rajmash, Seed Treatment, White Grubs.

Full Text