63 research outputs found
POLA PERMUKIMAN NEOLITIK DI KAWASAN DANAU GRATI KABUPATEN PASURUAN, JAWA TIMUR
No full textStudy of Neolithic settlement pattern in Ranu Grati area at Pasuruan-East Java is a part of research series on the ancient settlements at the lakes area in East Java, conducted by author since 2008. Research has been csttied out every year in a row starting from Ranu Klakah, Ranu Gedang, Ranu Segaran, Ranu Bethok, and Ranu Grati. Eventhough in its early stage of research, the results are quite promising, both geoarchaeological and archaeological landscape as well as its artifactual data. Lake terraces as geo-archaeological data and artifacts such as pottery sherds, net-sinkers, and Neolithic adze are evidences of settlement in Grati Lake area
Assessment of physiological indices and energetics under different system of rice intensification in north western Himalayas
Get PDFField experiment was conducted at the research farm of CSK Himachal Pradesh Krishi Vishvavidyalaya, Rice and Wheat Research Centre, Malan during kharif 2013 with the objective to select the best seedling age and spacing of rice under system of rice intensification in terms of energetic and employment generation for mid hill con-dition of Himachal Pradesh. The experiment was laid out in 3 times replicated split plot design, assigning of three seedling ages (10, 17 and 24 days) and two spacings (20 cm x 20 cm and 20 cm x 15 cm) in main plots and four seedling vigours corresponding to four seeding rates (25, 30, 35 and 40 g/m2) in sub plots. The leaf area per plant was significantly greater in 10 days seedling age and decreased with increase in age (P=0.05). Seedling rate did not affect leaf area index in all stages except 40 DAS when 35 g/m2 seeding rate had maximum LAI. Seedling age did not significantly influence crop growth rate at any interval but it did relative growth rate and net assimilation rate between 40-70 and 70-100 DAS (P=0.05). 24 days old seedling resulted in significantly higher relative growth rate and net assimilation rate between 40-70 DAS followed by 17 days old seedlings. Maximum value of energy input (13.23) was recorded in 24 days seedling. The energy use efficiency (Energy output: input) varied from 10.6 to 11.1 under different treatments. Wider spacing supporting less plant population consumed 10 man days less than closer spac-ing of 20 cm x 15 cm
Forecasting phenology of mustard crop in North-western Himalayas
Get PDFField experiments were conducted during rabiseason of 2007-08 and 2008-09 to study the phenology, thermal indices and its subsequent effect on dry matter accumulation of mustard (Brassica juncea L.) varieties viz., RCC-4, Kranti and Varuna grown under varying environmental conditions of Himachal Pradesh. The early sown (10th October) crop varieties took maximum average growing degree days for flower initiation (492±1), 50% flower-ing (682±1), pod initiation (742±1), 90% pod formation (811±4) and maturity (1394±8) which decreased with subse-quent delay in sowing time and recorded lowest under late sown (9th November) crop. The accumulated helio-thermal units and photo-thermal units decreased from 9824 to 7467 oC day hour and 19074 to 15579 oC day hour, respectively. High heat-use efficiency was obtained under late sown condition on 30th October. The heat-use efficiency (HUE) was high at 90% pod formation stage as compared to other stages in all the varieties and sowing dates (except 9th November sowing). The early sown (10th October) crop had maximum calendar days and cumula-tive pan evaporation (158 days and 448.2 mm) followed by normal (20th and 30th October) (153 days and 434 mm) and late (9th November) (138 days and 403.1 mm) sown crop indicating higher water requirement under early sow-ing. The predictive regression models explained 83-85% variation in dry matter yield in three varieties of mustard. The agro climatic indices are important determinants for temperature, radiations and photoperiods behaviors of crop. The accurate predictions of crop phenology are useful inputs for crop simulation modeling and crop management, and used for climate change assessment and simulated adaptations in present scenarios
Structural and electronic properties of amorphous Ti-Ni alloy thin films prepared by ion beam sputtering
No full textEvaluation of seeding rates of rice nursery on seedling vigour and its effect on crop productivity under system of rice intensification
Get PDFFour seeding rates (25, 30, 35 and 40 g/m2) of rice in nursery were tested for seedling vigour recorded at 10, 17 and 24 DAS at Malan during 2013 and 2014. The seedling vigour so obtained in nursery was subsequently evaluated in field during kharif 2013. Thus twenty four treatments comprised of combinations of three seedling ages (10, 17 and 24 days) and two spacings (20 × 20 cm and 20 × 15 cm) in main plots and four seedling vigour from four seeding rates (25, 30, 35 and 40 g/m2) in sub plots were evaluated in split plot design. Seedling shoot length under all seeding rates (25-35 g/m2) was significantly higher compared to check (40 g/m2) during 2013. In the next year, shoot and root length (30-35 g/m2), tiller per seedling and leaves per seedling (25-30 g/m2) of 24 days nursery was significantly higher over check (40 g/m2). Plant height, tillers, leaves and dry matter accumulation were significantly higher when younger seedlings aged 10 and 17 days were used. The crop raised using 10 days old seedlings matured 3-5 days earlier than 24 days old seedlings. Wider spacing resulted in more plant height, tillers, leaves and dry matter accumulation. Seedlings from 25, 30 and 35 g seed/m2 resulted in significantly taller plants than 40 g/m2. The seeding rate, seedling age and plant spacing did not significantly influence rice productivity thereby permitting flexibility to the rice farmers in the adoption of these factors
Comparative Efficacy of Organic and Inorganic Sources of Nutrients in Paddy (Oryza sativa L.)
No full textHeat unit requirement and yield of wheat (Triticum aestivum L.) varieties under different growing environment in mid hill conditions of Himachal Pradesh
No full textA eld experiment was conducted during rabi seasons of 2015-16 and 2016-17 to study the accumulated growing degree days (GDD), helio-thermal unit (HTU), photo-thermal unit (PTU), heat use efciencies (HUE) at different phenological stages and performance of wheat (Triticum aestivum L.) varieties grown under different sowing dates. Results of present study revealed that the crop sown on 20th October required maximum calendar days, growing degree days, photo-thermal unit and helio-thermal unit for tillering, owering, earing and maturity which was signicantly reduced with subsequent delay in sowing time. The grain yield recorded in 20th November (4065 kgha-1) was statistically at par with 5th November yield (3863 kgha-1). The signicant reduction in grain yield on varieties was recorded when sowing was delayed beyond 20th November. Among the varieties 'VL-907' produced highest grain yield
(3771 kgha-1) which was statistically on par with 'VL-829' (3726 kgha-1). The early and timely sown wheat variety like VL-829 and VL-907 took highest calendar days, GDD, HTU and PTU for earing and maturity. The variety 'VL-907' recorded the highest grain yield (4196 and 4168 kgha-1) at 5th and 20th November sowing as compared to all other sowing dates
A Flyvbjergian perspective on public elementary school closures in Toronto: a question of 'rationality' or 'power'?
No full textThe notion of social capital in contemporary societies is viewed as being necessary for the rejuvenation of civil society. However, such assumptions are based on inclusionary democratic practices; the heterogeneity of societal needs and the underlying power structures are often not taken into account. The author explores the possibility of examining neighbourhood-based social capital along the lines of 'intrinsic' (within neighbourhood) and 'extrinsic' (neighbourhood - city) relations. A spatial comparison of such preexisting, dense, dynamic networks of everyday mundane activities often leads to a better understanding of how power is created, maintained, and eventually used in times of neighbourhood crises. More specifically, by using a Flyvbjergian perspective of rationality and power, the author combines the notion of social capital as proposed by Putnam with Epstein's framework of participation within schools, to identify variations in civic activities within Public Elementary School Districts in Toronto (TDSB). Drawing from a unique descriptive dataset on parental and community participation available from the TDSB, and by combining it with enumeration-area data aggregated at the school-district level, this framework is empirically tested to gain an understanding of how such links relate to school-closure decisions. Within the context of education reform in Ontario, the results reveal the paradoxical nature of social capital in promoting and subjugating notions of democracy and civil society.
Weather parameters vulnerability on tea production in north western Himalaya, India
Get PDFThe study assessed the sensitivity of weather parameters with respect to total green leaf and two leaves and bud (T & B) productivity of tea crop {Camellia sinensis (L.) Kuntze}. The maximum temperature ranging from 20.0 to 29.0 oC during March, May, August and September showed positive relationship with values ranging from 0.26 to 3.38 and 0.22 to 3.22 for green leaf and T & B yield, respectively. Similarly, minimum temperature ranging from 9.1 to 20.0 oC during March and July to October found positive 0.001 to 2.93 and 0.28 to 2.91 for green leaf and T & B productivity, respectively. The mean monthly rainfall amounting 52.7 to 664.7 mm during March, May, July to October and 52.7 to 488.4 mm during June, July, September and October also showed positive sensitivity with values ranging from 0.03 to 0.33 and 0.007 to 0.35 for green leaf and T & B yield, respectively. The relative humidity ranging between 41.2 to 77.3% during April to May for green leaf yield (0.32 to 1.71) and during April to May and October for two leaf and bud yield (0.00 to 1.70) showed positive relationship. So, maximum and minimum temperature between 20.0 to 29.0 oC and 9.1 to 20.0 oC, respectively with rainfall of 52.7 to 488.4 mm and relative humidity 41.2 to 77.3% are the most beneficial weather parameters for tea cultivation at Palampur conditions
Survei Batimetri di Perairan Dangkal dengan Menggunakan Wahana USV (Unmanned Surface Vehicle), HIMAGE USV I
Get PDFUSV (Unmanned Surface Vehicle) adalah suatu wahana tanpa awak di permukaan air yang dapat digunakan untuk keperluan survey batimetri. Hal ini dikarenakan, wahana USV memiliki kelebihan dalam hal fleksibilitas, efisiensi, dan efektifitas.
Pada penelitian ini, penulis melakukan perancangan, pembuatan dan penggunaan wahana USV (HIMAGE USV I) yang dilengkapi sensor akustik (down imaging) untuk survei batimetri di Danau Ranu Grati, Kabupaten Pasuruan, Jawa Timur.Survei batimetri di Danau Ranu Grati, Kabupaten Pasuruan, Jawa Timur dengan menggunakan wahana USV menghasilkan Peta Batimetri Danau Ranu Grati, Kabupaten Pasuruan, Jawa Timur dan Visualisasi 3D Batimetri Danau Ranu Grati Kabupaten Pasuruan, Jawa Timur. Selain 2 luaran peta yang dihasilkan, dilakukan juga analisa penggunaan wahana USV untuk keperluan survei batimetri di perairan dangkal dan analisa kedalaman data down imaging yang bersilangan antara lajur utama dengan lajur silang berdasarkan Standards for Hydrographics Surveys (IHO) 3th Edition, Special Publication No.44, 1989.
Hasil dari analisa penggunaan wahana USV, HIMAGE USV I untuk pengukuran batimetri, wahana yang digunakan memiliki kelebihan terkait tipe / model wahana yang dibuat dan kelebihan terkait sensor akustik yang digunakan, namun wahana USV yang digunakan juga memiki kekurangan terkait sistem pendingin mesin, alarm pada baterai dan keteraturan jalur pemeruman. Olehkarena itu, perlu dilakukannya beberapa perbaikan agar pengukuran batimetri menggunakan wahana USV dapat lebih baik. Analisa kedua mengenai verifikasi kedalaman data down imaging dengan diambilnya 6 sampel data kedalaman yang bersilangan antara lajur utama dan lajur silang didapatkan bahwa, dari 6 sampel semua data dapat dikategorikan masuk kedalam orde 1 pada akurasi kedalaman menurut Standards for Hydrographics Surveys (IHO) 3th Edition, Special Publication No.44, 1989.
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USV (Unmanned Surface Vehicle) is an unmanned vehicle on surface water that can be used for bathymetry survey. This is because the USV has advantages in terms of flexibility, efficiency, and effectiveness.
In this final assignment, the author start to design, manufacture and using the USV (Unmanned Surface Vehicle) vehicle equipped with acoustic sensors (down imaging and side imaging) for bathymetry survey at Ranu Grati Lake, Pasuruan District, East Java.
The bathymetry survey at Ranu Grati Lake, Pasuruan
District, East Java was held on March 25, 2017. The results of this bathymetry survey are Bathymetry Map of Ranu Grati Lake, Pasuruan District, East Java; 3D Visualization of Ranu Grati Lake, Pasuruan District, East Java, And Side Scan Sonar Mosaic Map of Ranu Grati Lake, Pasuruan District, East Java. Beside the 3 maps resulted
, this study also evaluating the bathymetry surveys
using USV, depth analysis of down imaging data between the main and cross paths based on Standards for Hydrographic Surveys (IHO) 3rd Edition, Special Publication No.44,1989, And also identify the object located on bed surface of Ranu Grati lake, Pasuruan District, East Java.
The analysis of bathymetry surveys using USV at Ranu Grati Lake, Pasuruan District, East Java, the USV has an advantage over the acoustic sensors used and the type of vehicle
that are made, but still has constraints on the engine cooling system, battery alarm, and vehicle controls for
better survey tracks.
The result of verification of depth down imaging data with 6 samples of cross - linked depth data between main line and cross line, found
that from 6 sample data, all data can be categorized into order 1 on depth accuracy according to Standards for Hydrographics Surveys (IHO) 3th Edition , Special Publication No.44, 1989. And for the results of side scan analysis sonar mosaic
map, it can be said that on the surface of Lake Ranu Grati, Pasuruan, East Java, covered by sand, mud and clay, and there is no shipwrecks, iron or other larger hard
objects
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