012764   Copeland Corp (NO, , Campbell Road, Sidney Ohio 45365-0669, USA) : Scroll compressor with reverse rotation sound attenuation. 0000, (NULL), (NULL).

012763   Commscope Inc (NO, , 1375, Lenoir-Rhyne Boulevard, Hickory, North Carolina 28603-0339, USA) : Coaxial cable and method of making same. 0000, (NULL), (NULL).

012762   ABB Flakt Aktiebolag (NO, , Sickla Alle 13, Nacka, S-120 86 Stockholm, Sweden) : Electrostatic precipitator with a device for the suspending, guidding and rapping of one or more collecting electrodes. 0000, (NULL), (NULL).

012761   Yadav R;Shyam R;Jha V (Dep of Irrigation and Drainage Engineering, G.B. Pant University of Agricultural and Technology, Pantnagar, U.S.Nagar-263 145) : Water course lining decisions using two level optimization model. J Indian Wat Resour Soc 2004, 24(3), 12-20.

The water course lining due to considerable amount of transit losses and financial requirement under limitations of funds has been a subject of interest to water management scientists. The workers have used different criteria to arrive different percentage of length of the water course which can be lined. The water course length to be lined has been linked to the production increment accruing as a result of lining. Four water courses of the Bhojipura distributory of Richha branch canal in the Sharda Canal System were selected for the study. The half upstream length of each of the four water courses incurs conveyance losses to the extent of 94.6, 90.84, 92.10 and 89.61 per cent, respectively. Using two level dynamic prograrmning model the percentage length to be lined in four courses was found is 45.5, 48.0, 49.0 and 50 percent respectively.

5 illus, 7 ref

012760   Verma S;Srivastava A;Prabhakar V;Muralidhar K;Wadhawan V K (Laser Materials Div, Centre for Advanced Technology, Indore-452 013, Email: sverma@cat.ernet.in) : Simulation and experimental verification of solutal convection in the initial stages of crystal growth from an aqueous solution. Indian J pure appl Phys 2005, 43(1), 24-33.

Three-dimensional, unsteady numerical simulation of transport phenomena during the initial stages of growth of the KDP crystal from its aqueous solution and comparison with experiments have been presented. The convective field in the solution is set-up due to density differences between the supersaturated solution in the bulk and the saturated solution in the vicinity of the crystal. The now field in the solution has been visualized using a shadowgraph technique. Numerical as well as experimental results of the growth under free convection show that convection is initially set-up in the vicinity of the crystal, while the solution in the rest of the growth chamber is relatively stagnant. The initial flow patterns show symmetry to a great extent. The influence of the crystal rotation on the concentration field has been additionally studied through numerical simulations. When the crystal is rotated, the gradients in concentration between the region near to the crystal and far away from it are high. This is a desirable requirement for a higher crystal growth rate. With the passage of time, the length scales of convection span the growth chamber, and a purely unsteady flow field is established. The numerical simulation could not be continued for such long durations owing to excessive requirement of computational resources. However, a good agreement between simulation and experiments for short times indicates that the imaging of the flow field provides a useful strategy for continuous monitoring of crystal growth.

9 illus, 16 ref

012759   Verma M P;Rastogi R A (Soil & Water Conservation Dep, College of Technology, G.B. Pant University of Agriculture and Technol, Pantnagar) : Muskingum routing models for Chaukhutia watershed. Indian J Soil Conserv 2004, 32(2), 113-15.

The Muskingum flood routing model was developed for application to river systems where multiple tributaries, unit to a single channel down stream. The parameters of Muskingum routing equation, storage coefficient, computed by Wilison method however the routing coefficient x is assumed from 0.05 to upto the 0.5 at interval of 0.05. This method provide the flexibility to chose the value of weighting factor to compute the accurate peak discharge and flood forecasting. Thus the method of flood routing is used to channel routing for Chaukhutia watershed of Ramganga river to compute the peak of direct runoff hydrograph and the obtained results are encouraging.

4 illus, 2 tables, 9 ref

012758   Sinha R K;Herat S (Griffith Univ, Sch of Envir Engng, Brisbane QLD-4111, Astralia) : Cleaner production technologies industries with case studies-1: chemical, energy, fertilizer, metal and mining. Indian J envir Prot 2004, 24(4), 241-50.

12 ref

012757   Singh V R (Instrumentation and Sensors Group, National Physical Laboratory, New Delhi-110 012, Email: vrsingh@mail.nplindia.ernet.in) : Smart sensors: Physics, technology and applications. Indian J pure appl Phys 2005, 43(1), 7-16.

The semiconductor technology has advanced a rapid progress in the sensors which are heart of instrumentation systems. These days, most of the sensors are `smart' in nature. In such sensors, the sensing elements and associated electronics are integrated on the same chip. Generally, silicon is preferred as sensor material because it can give a suitable physical conversion effect and can give suitable signal processing circuit, with integration of the sensing element and electronic circuits on the chip, by using standard planar technology. The smart sensors have main advantages of fast signal conditioning, higher signal-to-noise ratio, self testing, auto calibration, small physical size, high reliability, failure prevention and detection. In the paper, recent advances in smart sensors along with their design and fabrication aspects, are discussed. The smart sensors developed in the Laboratory, mainly smart pressure sensors and smart lithotripsy sensor, are presented, besides smart sensors used in industrial controls, automotive and biomedical fields. Biochips and biosensor are also cited for some of the specific applications.

ia, 10 illus, 23 ref

012756   Sharma S K;Narendra Kumar;Rao M V B (Bridge Div, Central Road Research Institute, New Delhi-110 020) : Discussion on bridge weight testing inspection and experimental details. Bhartiya Vaigyanik Evam Audyogik Anusandhan Patrika 2004, 12(2), 336.

Systematic detailed description of accepted parameters for necessity of weight testing and testing method for a bridge have been described. Weight testing on a precast concrete arm beam box guarder along with experimental data has also been described.

012755   Shah N A;Malik M A (Postgraduate Department of Electronics & Instrumentation Technology, The University of Kashmir, Srinagar-190 006, Email: mohdameen2003@yahoo.co.in) : Current-mode universal biquadratic filter with single input and four outputs using FTFNs. Indian J pure appl Phys 2005, 43(2), 142-4.

A novel four terminal floating nullor (FTFN) based universal current-mode (CM) biquadratic filter configuration with single input and four outputs (SIFO) is presented. The circuit is based on and employs six FTFNs of the same polarity and as many passive components and realizes simultaneously lowpass (LP), highpass (HP), inverted bandpass (BP) and Notch filtering functions without any imposition of component matching conditions or cancellation constraints. The circuit can also be made to realize allpass (AP) response by tying together appropriate output filtering signals. The topology has the distinct feature of low input and high output impedances which permits easy cascading for the construction of higher order filters. The circuit enjoys low passive sensitivity figures. The resonance frequency ω_o/Q and bandwidth ω_o/Q can be independently tuned while as resonance frequency ω_o and quality factor Q can be orthogonally adjusted. Experimental and PSPICE simulation results are given to confirm the theoretical results.

3 illus, 18 ref

012754   Shah N A;Iqbal S Z;Parveen B (Postgraduate Department of Electronics & Instrumentation Technology, The University of Kashmir, Hazratbal, Srinagar-190 006, Email: zaffer121@rediffmail.com) : Electronically tunable current-mode bandpass filter. Indian J pure appl Phys 2005, 43(1), 60-2.

A new current-mode (CM) operational transconductance amplifier-capacitor (OTA-C) structure implementing second-order bandpass (BP) filtering response and offering a variety of performances is presented. The use of one type of sources and grounded capacitors (GC) considerably simplifies the implementation of the filter in contemporary IC form. The electronic tuning of circuit characteristics has been achieved orthogonally by adjusting the transconductance gain (gm) of OTAs. The circuit possesses low sensitivity figures having values less than or equal to unity lending it better performance feature.

3 illus, 16 ref

012753   Pandey V K;Panda S N;Sudhakar S (Soil & Water Enginnering Dep, Faculty of Agricultural Engineering, Indira Gandhi Agricultural University, Raipur-492 006) : Digital elevation model for topographic parameterization of agricultural watershed of Gowai river catchment. Indian J Soil Conserv 2004, 32(2), 108-12.

Digital Elevation Model (DEM) is a raster representation of a continous surface, usually referring to the surface of the earth. This is a valuable tool for the topographic parameterization of watersheds. In the study DEM of 23m x 23m resolution was developed using ARC/INFO GIS software from contour map (1:25000 scale) of Banikdih agricultural watershed. Flow-direction and flow-accumulation themes were developed using depression less DEM. Finally, topographical parameters and stream (main channel and tributary channel) properties relating to land surface of watershed were extracted. The minimum and maximum values of slope were found to be 0% and 19.10% respectively. The minimum and maxium vales of aspect range (decimal degrees) were found to be Flat (-1) and Northwest (337.50), respectively. The minimum and maximum vales of elevation were found to be 198.39m and 303.91m, respectively. The total length of main and tributary channels was found to be 31720m and 56320m respectively. The average values of slope, width and depth of main channel were found to 5-39%, 8.49m and 0.44m respectively, where as the average values of slope, width and depth of tributary channel were found to be 0.69%, 5.45m and 0.34m respectively.

6 illus, 1 table, 9 ref

012752   Mohan S;Magesh N (Environmental and Water Resources Engineering Division, Dep of Civil E, Indian Institute of Technology, Madras, Chennai-600 036) : Dependability of irrigation and hydropower during drought. J Indian Wat Resour Soc 2004, 24(3), 1-11.

A trade off relationship between irrigation and hydropower production was developed under drought conditions for a multi-purpose reservoir system. A linear programming model is employed which incorporates the physical, mass balance and water availability constraints of the Bhandra reservoir system in Karnataka, India. Variations of monthly reservoir releases for irrigation are incorporated based on the drought conditions and the consequent impacts on hydropower production are studied. The results show that upto 70% of the annual flow, the droughts do not have any impact on the trade-off relations and below that it affects very much. Recommendations are made for the operating guidelines during the droughts for system under study in the light of these results.

5 illus, 2 tables, 7 ref

012751   Mehta M (Coll of Home Sci, Family Resource Management Dep, CCS HAU, Hisar) : Operational evaluation of modified MDV woodstove. Indian J envir Prot 2004, 24(4), 258-61.

In India majority of women use traditional mud woodstove for the purpose of cooking, which is quite unsatisfactory as only small amount of potential energy, is utilized in traditional woodstove. To overcome these problems a MDV woodstove (double walled 'U' shapped woodstone with air insulation and with grate and flame concentration plate) was developed. In this MDV woodstove there was reduction in some generation and the saving in fuel was 26.48% in increase in thermal efficiency was 98.24% over the traditional woodstove. The study was undertaken to modifiy the MDV woodstove by using sand and turri (hay) as insulating material and changing the grate height. The performance of modified MDV woodstove was assessed in terms of fuel burning rate, as and charcoal produced specific fuel consumption, thermal efficiency and power output. The fuel burning rate and specific fuel consumption was increased most of the modifications. The thermal efficiency and power output were decreased. The turri insulated MDV woodstove with 9 cm grate height was better than rest of the modifications but the original MDV woodstove with grate height of 7 cm was the best.

3 illus, 1 table, 3 ref

011799   YKK Corp (NO, , No 1, Kanda Izumi-Cho, Chiyoda-Ku, Tokyo, Japan) : Lock slider for slide fastener. 0000, (NULL), (NULL).

011798   W. Schlafhorst Ag & Co (NO, , Postfach 100435, D-41004, Monchengladbach, Germany) : Method for manufacture of a cross-wound spool on a winding head of a winding machine. 0000, (NULL), (NULL).

011797   Ventana Medical Systems, Inc (NO, , 3865 N. Business Center Drive, Tucson, Arizona 85705, USA) : Microscope slide heating system. 0000, (NULL), (NULL).

011796   Tambe M (NO, , 74/F, Venus Worli Sea Face, Mumbai-400 018) : Device for interactive presentation to audience. 0000, (NULL), (NULL).

011795   Steel Authority of India Ltd (NO, , Doranda, Ranchi-834 002) : System for online elongation measurement and off-gauge detection for quality apparaisal of steel strip during skin pass rolling. 0000, (NULL), (NULL).

011794   Siemens Energy & Automation Inc (NO, , 3333 Old Malton Parkway, Alpharetta Ga, 30202, USA) : Magnetic assembly for a transformer or other electrical apparatus. 0000, (NULL), (NULL).

011793   Siemens Aktiengesellschaft (NO, , Wittelsbacherplatz 2, 80333, Muenchen, Germany) : Lighting device for signalling, designating or making. 0000, (NULL), (NULL).

011792   Siemens Aktiengesellschaft (NO, , Wittelsbacherplatz 2, 80333, Muenchen, Germany) : Bucket wheel device. 0000, (NULL), (NULL).

011791   Siemens Aktiengesellschaft (NO, , Wittelsbacherplatz 2, 80333, Muenchen, Germany) : Method and device for precalculating initially unknown parameters of an industrial process. 0000, (NULL), (NULL).

011790   Sharav Sluices Ltd (NO, , Israel Institute of Technology, Technical City, Haifa 32000, Isreal) : Renewable resource power generation plant and method of generating power. 0000, (NULL), (NULL).

011789   Sen P (NO, , 80/2 Kankulia Road, Calcutta-700 029) : Improvements in the design and construction of passenger road & rail vehicles for reducing interior heat and enhancing ventilation. 0000, (NULL), (NULL).

011788   Samsung Electronics Co Ltd (NO, , 416, Maetan-Dong Paldal-Gu, Suwon-City, Kyungki-Do, Republic of Korea) : Optical pickup. 0000, (NULL), (NULL).

011787   Rittal Wrk Rudolfloh Gmbh & Co (NO, , KG, Auf Dem Stutzelberg, d-35745 Herborn, Germany) : Switchgear cabinet. 0000, (NULL), (NULL).

011786   Osovolta-Osterreichische Isoliestoffwerke Aktiengesellschaft (NO, , A-2355, Wiener Neudorf, Austria) : Process for producing impregnable fine mica tapes with a built-in-accelerator. 0000, (NULL), (NULL).

011785   Notetry Ltd (NO, , Kingsmead Mill, Little Somerford, Wiltshire, SN 15, 5JN, UK) : Clutch mechanism. 0000, (NULL), (NULL).

011784   North Carolina State University (NO, , 1 Holiday Hall CB No. 7003, Raleigh, North Carolina 27695-7003, USA) : Method of fabricating gallium nitride semiconductor layer and a structure of gallium nitride semiconductor. 0000, (NULL), (NULL).

011783   Noise Cancellation Technologies Inc (NO, , 1025, West Nursery Road, Linthicum, Maryland 21090, USA) : Improved loudspeaker E.G for vehicles. 0000, (NULL), (NULL).

011782   Matsushita Electric Industrial Co Ltd (NO, , 1006, Oaza Kadoma, Kadoma-Shi, Osaka 571, Japan) : Disassembling method of electronic appliance and an apparatus thereof. 0000, (NULL), (NULL).

011781   Mallick D K (NO, , EC-88, Sector 1, Salt Lake, Kolkata-700 064) : Can delivery attachment for a finisher card. 0000, (NULL), (NULL).

011780   LG Electronics Inc (NO, , 20, Yoido-Dong, Yongdun Gpo-Ku, Seoul, Republic of Korea) : Fax data transmitting apparatus in a radio wave communication system and method thereof. 0000, (NULL), (NULL).

011779   Koso Co Ltd (NO, , 19Ban, 6-802GO, Nishibashi 1-Chome, Minato-Ku, Tokyo 105-0003, Japan) : High-differential-pressure valve. 0000, (NULL), (NULL).

011778   Indian Institute of Technology (NO, , Kharagpur-721 302) : Sensor system for detecting presence of deoxidizing gases. 0000, (NULL), (NULL).

011777   Iberia Ashland Chemical, SA (NO, , Muelle Tomas de Olabarri 4-3, 48930, Las Arenas-Guecho(Vizcaya), Spain) : Process for production of a ferrule or feeding head and supply element for casting molds which are exothermic and appropriate for nodular casting. 0000, (NULL), (NULL).

011776   Henkel Loctite Corp (NO, , 1001 Trout Brook Rocky Hill, Connecticut 06067, USA) : Mounting structure for semiconductor devices and process for production thereof. 0000, (NULL), (NULL).

011775   Hans Guntner Gmbh (NO, , Industriestrasse 14 D, 82256, Furstenfeldbruck, Germany) : Method of assembling a heat exchanger and a heat exchanger apparatus thereof. 0000, (NULL), (NULL).

011774   Giesecke & Devrient Gmbh (NO, , Prinzregentenstrasse 159, 81677, Munchen, Germany) : Method for data protection having an authentication phase and apparatus therefor. 0000, (NULL), (NULL).

011773   Ericsson Inc (NO, , 7001 Development Drive Research Triangle Park, North Carolina, 27709, USA) : Echo suppression device. 0000, (NULL), (NULL).

011772   Endress+Hauser Flowtec AG (NO, , Kagenstrasse 7, CH-4153, Reinach, Switzerland) : Electrode assembly for electromagnetic flow sensors. 0000, (NULL), (NULL).

011771   Endress+Hauser Flowtec Ag (NO, , Kagenstrasse 7, CH-4153 Reinach, Switzerland) : Control device for regulating the coil current of electromagnetic flow sensors. 0000, (NULL), (NULL).

011770   Electronics Research & Development Centre (NO, , Vellayambalam, Trivandrum-695 033) : Energy controller for providing electric power of predetermined voltage and frequency to a load. 0000, (NULL), (NULL).

011769   Dana Corp (NO, , 3222 West Central Avenue, Toledo, Ohio, USA) : Driveshaft assembly. 0000, (NULL), (NULL).

011768   Copeland Corp (NO, , Campbell Road, Sidney Ohio 45365-0669, USA) : Scroll compressor with reverse rotation sound attenuation. 0000, (NULL), (NULL).

011767   Commscope Inc (NO, , 1375, Lenoir-Rhyne Boulevard, Hickory, North Carolina 28603-0339, USA) : Coaxial cable and method of making same. 0000, (NULL), (NULL).

011766   ABB Flakt Aktiebolag (NO, , Sickla Alle 13, Nacka, S-120 86 Stockholm, Sweden) : Electrostatic precipitator with a device for the suspending, guidding and rapping of one or more collecting electrodes. 0000, (NULL), (NULL).

011765   Yadav R;Shyam R;Jha V (Dep of Irrigation and Drainage Engineering, G.B. Pant University of Agricultural and Technology, Pantnagar, U.S.Nagar-263 145) : Water course lining decisions using two level optimization model. J Indian Wat Resour Soc 2004, 24(3), 12-20.

The water course lining due to considerable amount of transit losses and financial requirement under limitations of funds has been a subject of interest to water management scientists. The workers have used different criteria to arrive different percentage of length of the water course which can be lined. The water course length to be lined has been linked to the production increment accruing as a result of lining. Four water courses of the Bhojipura distributory of Richha branch canal in the Sharda Canal System were selected for the study. The half upstream length of each of the four water courses incurs conveyance losses to the extent of 94.6, 90.84, 92.10 and 89.61 per cent, respectively. Using two level dynamic prograrmning model the percentage length to be lined in four courses was found is 45.5, 48.0, 49.0 and 50 percent respectively.

5 illus, 7 ref

011764   Verma S;Srivastava A;Prabhakar V;Muralidhar K;Wadhawan V K (Laser Materials Div, Centre for Advanced Technology, Indore-452 013, Email: sverma@cat.ernet.in) : Simulation and experimental verification of solutal convection in the initial stages of crystal growth from an aqueous solution. Indian J pure appl Phys 2005, 43(1), 24-33.

Three-dimensional, unsteady numerical simulation of transport phenomena during the initial stages of growth of the KDP crystal from its aqueous solution and comparison with experiments have been presented. The convective field in the solution is set-up due to density differences between the supersaturated solution in the bulk and the saturated solution in the vicinity of the crystal. The now field in the solution has been visualized using a shadowgraph technique. Numerical as well as experimental results of the growth under free convection show that convection is initially set-up in the vicinity of the crystal, while the solution in the rest of the growth chamber is relatively stagnant. The initial flow patterns show symmetry to a great extent. The influence of the crystal rotation on the concentration field has been additionally studied through numerical simulations. When the crystal is rotated, the gradients in concentration between the region near to the crystal and far away from it are high. This is a desirable requirement for a higher crystal growth rate. With the passage of time, the length scales of convection span the growth chamber, and a purely unsteady flow field is established. The numerical simulation could not be continued for such long durations owing to excessive requirement of computational resources. However, a good agreement between simulation and experiments for short times indicates that the imaging of the flow field provides a useful strategy for continuous monitoring of crystal growth.

9 illus, 16 ref