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R. C. Gupta , A. K. Singh , R. L. Fotedar , S. S. Gahalain

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R. C. Gupta , R. S. Shah

Abstract

It is natural that plywood gets compressed under certain pressing conditions, but the data regarding Indian species of wood is not available. The present note evaluates tbe Compression loss in plywood made from Mangifera indica and Terminalia myriocarpa for a few pressing conditions and thickness of plywood. This knowledge may be useful to the industry to evalnate the final thickness of plywood produced by tbem from veneers.

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R. C. Gupta , M. S. Rajawat , J. K. Bagga

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The paper incorporates the results obtained using a hot setting animal glue composition for lea-chest plywood. The results indicate that the glue composition suggested here is sa tisfadory for making tea-chests and could meet their requirements as per IS : 10 (Part I) 1976. The suggested method envisages a reduction in the cost of gluing to about 25 per cent against the cost of gluing using Urea-formaldehyde.

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R. C. Gupta , D. K. Jain

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Five common Indian species which are used for plywood making were selected to study the role of extractives in the rate of development of bond strength using cold set Urea-formaldehyde resin as glue. Extraction with hot water decreased the failing load from that of control (unextracted) values while extraction with ether, alcohol/benzene improved the bonding strength. Rate of development of bond strength is only slightly effected with the type of extraction carried out and it is maximum in case of ether, alcohol/benzene extraction in most of the cases.

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R. C. Gupta , D. K. Jain

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Nine different species of timbers both from soft and hardwoods were subjected to different stages of resin treatment and curing as is generally done in the case of plywood etc. After each stage of treatment, the physical strength properties eg. Modulus of elasticity, Modulus of regidity and Tensile strength were evaluated. The results show striking similarity in behaviour with only few exceptions. The presence of moisture and wet resin decidedly decrease the strength properties.

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R. C. Gupta , B. S. Bist

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Nepal Asna (Terminalia alata var. nepalensis) was examined for its suitability for plywood. The note records the results of the experiments carried out.

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R. C. Gupta , M. K. Lala

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Visiting cards were made at the Composite Wood Branch of the Forest Research Institute from wood veneers of three different species using three different glues. Veneers were either rotary peeled or sliced in thickness of 0.25 mm. It was noticed that for getting good grains on cards sliced veneers were better than rotary peeled veneers. Three ply construction was tried, but it was found that these cards were stiff and thick and hence this method was abandoned. Another method using two veneers with a core of glue coated kraft paper was adopted and it was found that these cards using Animal glue have shown no delamination even after six months and do not pose any printing problems. From these experiments it appears that the veneer paper laminates hold a good promise for use in visiting cards.

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Bhawana Joshi Pande , R. C. Gupta

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The effect of water stress induced by application of polyethylene glycol 6000 during seed germination and seedling growth of Oroxy/um indicum (l.) Vent. was analyzed in present paper. The various osmotic potentials generated (-3, -5, -7.5 and -10 bars) showed significant decrease in germination percentage. At the osmotic potential of -7.5 and -10 bars, no germination takes place. All the seedling growth parameters also showed inhibition with increase in osmotic potential.

Keywords

Oroxylum indicum (L.) Vent., Water Stress, Germination Percentage, Mean Germination Time (MGT), Germination Index (GI), Germination Relative Index(GRI), Seedling Vigor Index (SVI)

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N. C. Jain , R. C. Gupta

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Enormous quantities. of wastes (industrial, agricultural, and forests) are available in the country. Their proper utilisation is important for the balanced economy of the country. In this note utilisation of some of these has been sought in the field of plywood (adhesives, fillers and extenders, etc.) and building boards (fibre board, particle board and plastic boards). A gel obtained from paddy husk has given good results when tried as extender in U.F. glue and P.F. glue for making plywood. It appears possible that the entire wheat flour now being used in the Industry could be replaced by this gel. In the field of building boards, rubber wood has given encouraging results. Ground Nut Shell, yet another agricultural waste has yielded encouraging particle boards.

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N. C. Jain , R. C. Gupta

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N. C. Jain , R. C. Gupta , D. K. Jain

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Adarsh Kumar , R. C. Gupta , N. C. Jain

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Adarsh Kumar , R. C. Gupta , N. C. Jain

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Deepti Agarwal ¹, R. C. Gupta ¹

Affiliations
1 Central Building Research Institute, Roorkee 247667, UP, IN

Abstract

An attempt has been made towards the critical appraisal of managing serials through the library management software, LIBSYS.

Keywords

Serials Control, Library Software, LIBSYS.

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R. C. Gupta ¹

Affiliations
1 Central Building Research Institute. Roorkee 247 667, Uttaranchal, IN

Abstract

In this paper an attempt has been made to narrate the status, methodology involved in organisation, and different ideas to be considered while designing a serviceable library web site.

Keywords

Hypertext, Web Page, WWW, URL, HTML.

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Varun Kumar Mahla ¹, Mamta Mahla ², R. C. Gupta ², Jairam Rawtani ³

Affiliations
1 Biochemistry, GMERS Medical College, Gandhinagar, IN
2 Physiology, Mahatma Gandhi Medical College, Jaipur, IN
3 Biochemistry, Dr. S.N. Medical College, Jodhpur, IN

Abstract

Background&Objectives: Free oxygen radicals have been proposed as important causative agents of ageing and menopause is a natural step in the process of ageing. The intricate balance between antioxidants and reactive oxygen species seems to be disturbed in post-menopausal women due to deficiency of estrogen, which is a powerful antioxidant. In view of this background, present study was carried out to find correlation between menopause and oxidative stress, if any.

Method: Oxidative stress was evaluated in 105 women by estimating levels of superoxide dismutase, ascorbic acid, and malondialdehyde in blood/serum spectrophotometrically. The subjects consisted of 35 women of three distinct groups, namely, reproductive age, peri-menopausal, and postmenopausal. Data obtained was analyzed by student's t- test, ANOVA, and Pearson's correlation coefficient (r). P < 0.05 was considered significant.

Results: Peri- and post-menopausal women exhibited significantly low erythrocyte SOD and serum ascorbic acid levels and significantly high serum MDA levels as compared to the women of reproductive age.

Interpretation&Conclusion: Findings of this study corroborate the hypothesis that gradual loss of ovarian function is associated with a concomitant increase in oxidative stress as exhibited by increased MDA levels and decreased levels of antioxidants.

Keywords

Antioxidants, Ascorbic Acid, Menopause, Oxidative Stress, Malondialdehyde, Superoxide Dismutase

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R. C. Gupta ¹, L. D. Kapoor ¹

Affiliations
1 National Botanic Gardens, Lucknow, IN

Abstract

The present paper deals with the macro- and micro-scopical studies of all the vegetative parts of Leptadenia reticulata W. & A. alongwith physicial constants and fluorescence characters of the drug.

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R. C. Gupta ¹, M. S. Ansari ¹, L. D. Kapoor ¹

Affiliations
1 National Botanic Gardens, Lucknow, IN

Abstract

The present paper deals with the macro- and the micro-scopical studies of all vegetative parts of Desmotrichum fimbriatum Bl. alongwith fluorescence characters and physical constants of the drug.

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R. C. Gupta ¹

Affiliations
1 Pharmacognosy Section, National Botanical Research Institute, Lucknow, IN

Abstract

'Jivanti an important Ayurvedic drug, has variously been ascribed to different botanical taxa, Dregea volubilis (Linn.f.) Benth. being one such species. A detailed pharmacognosy of vegetative parts of the above species has been dealt within the present paper. This includes organoleptic and microscopic characters, fluorescence analysis of the drug powder and its behaviour on treating with different chemical reagents, preliminary phytochemical studies of various extractives and their TLG patterns and ash values. Some of the salient diagnostic characters revealed by this study are : diarch primary stele in the ischolar_main, origin of phellogen in the second cortical layer of stem, presence of pericycle as 2 rows of irregularly arranged strands of partially lignified fibres mixed with a few, sclereids, commonly occurring uni- and bi-seriate rays in both the ischolar_main and the stem, a stout obscurely channelled petiole with three leaf traces, development of red colour in the aqueous extract of powdered ischolar_main on heating with phloroglucinol and conc. Hcl.

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R. C. Gupta ¹, A. K. Wahi ¹

Affiliations
1 National Botanical Research Institute, Lucknow, IN

Abstract

The present paper deals with the macro- and micro-Scopical studies of the vegetative parts of Sarcostemma brevistigma W.&A. The cell-contents, percentage extractives and ash values, fluorescence characters and behaviour of drug powder on treatment with different chemical reagents is also described.

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R. Pratap ¹, R. C. Gupta ¹, R. Chander ¹, A. K. Khanna ¹, Vinita Singh ¹, N. K. Kapoor ¹, A. K. Srivastava ¹, D. Raina ¹, S. Singh ¹, A. Ghatak ¹, O. P. Asthana ¹, S. Nityanand ¹, Sukh Dev ², Nitya Anand ¹

Affiliations
1 Central Drug Research Institute, Lucknow 226 001, IN
2 Ambedkar Research Centre, Delhi University South Campus, New Delhi 110 021, IN

Abstract

The increasing incidence of disorders due to metabolic syndrome, which include hyperlipidemias, diabetes and hypertension, has taken serious dimension world over, including in India, and has become a matter of deep concern. Drugs which can inhibit more than one disorder of this syndrome would add much therapeutic value to its management. 3β -Hydroxy-5,16- pregnadien-20-one (80-574, 2), selected based on the structural lead of the presence of a β -enone pharmacophore in/around ring D of Guggulsterone (1), the main active constituent of the phytopharmaceutical Gugulip developed at CDRI, Lucknow from the Ayurvedic herbal drug Gum Guggul, has been found to exhibit both hypolipidemic and hypoglycemic activities in the conventional experimental animal models used for studying these activities. In mode of hypolipidemic action studies in high fat diet-fed rats, compound 80-574 was found to enhance lipolysis of serum lipoproteins, enhance the uptake of LDL by hepatocyte membranes, indicating increased catabolism of LDL, and caused increased faecal excretion of bile acids indicating enhanced mobilization of cholesterol from fatty deposits. Compound 80-574 also exhibited antioxidant activity in in vitro and in vivo experimental models, and protected LDL against oxidation, indicating protection against atherogenesis. Compound 80-574 also exhibited moderate inhibition of cholesterol biosynthesis in liver slices. Treatment with 80-574 also improves glucose tolerance in diabetic rats. With these multiple sites of hypolipidemic action accompanied with its hypoglycemic activity, compound 80-574 appears a promising candidate for the treatment of dyslipidemias and diabetes and thus for management of metabolic syndrome. A synoptic view of the various functional activities exhibited by compound 80-574 is presented in this article.

Keywords

Diabetes, Lipoproteins, Lipid Peroxides, Triglycerides.

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R. C. Gupta ¹, Ajay K. Gupta ², R. K. Shrivastava ³

Affiliations
1 Department of Civil Engineering, Govt. Polytechnic College, Ujjain, M.P., IN
2 Department of Civil Engineering, Govt. Engineering College, Ujjain, M.P., IN
3 Department of Civil Engineering, S.G.S. Institute of Technology and Science, Indore, M.P., IN

Abstract

River Kshipra is receiving a large volume of untreated sewage daily in its stretch of Ujjain city and the status of water is pathetic during low flow season. A stream water quality model QUAL-2Kw was used in the present study to simulate the contributions from different sources and sinks of dissolved oxygen and to understand the interactions among them. The model was calibrated and validated and the simulated results are in general agreement with measured water quality in River Kshipra. It was established through this study that the QUAL-2Kw model can be used for future river water quality management options for River Kshipra with reasonable accuracy.

Keywords

Water Quality Modeling, Kshipra River, QUAL-2Kw Calibration, Simulation.

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R. P. Singh , R. C. Gupta , S. C. Sarkar

Abstract

The present study is concerned with the e ect of welding current, welding voltage, welding speed and external magnetic field on impact strength of shielded metal arc welded mild steel joints. Mild steel plates of 6 mm thickness were used as the base material for preparing single pass butt welded joints. Speed of weld was provided by cross slide of a lathe, external magnetic field was obtained by bar magnets. Impact strength or Toughness properties of the joints fabricated by E-6013 electrodes as metals were evaluated and the results were reported. From this investigation, it was found that the joints fabricated have increased impact strength if either speed of weld or external magnetic field was increased and the impact strength of weld decreased if either voltage or current was increased. An artificial neural network technique was used to predict the impact strength property of the weld for the given welding parameters after training the network.

Keywords

Shielded Metal Arc Welding, Back Propagation, Impact Toughness, Artificial Neural Network

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