202,478 research outputs found
The Folio: F. C. C. Magazine
No full textThe Folio. pp. 1; Bhatty, M. S.-Alumni Association Activities. pp. 2-4; Velte, F. M.-An Address. pp. 5-10; Jain, M. P.-A Study in Eugene O'Neill. pp. 11-16; Dhamija, J. N.-Immortal Longings. pp. 17; Carter, W. D.-Essay-Russia, the League and World Peace. pp. 18-23; Parwaiz Ahmad-Poetry-Weariness. pp. 23-24; Akhtar, M. Buland-Essay-The Function of Poetry in Literature. pp. 24-26; Pandit, K.-Essay-Stray Thoughts. pp. 26-27; Zweig, Stefan-Essay-Marie Antoinette. pp. 28-30; Thirty Years Ago. pp. 31; Gargoyles. pp. 32-35; Mansukhani, P. G.-The Co-Ed's Corner. pp. 35-36; Akhtar, M. Buland-Sports. pp. 36-38; W. P. B.. pp. 38-40; Late News. pp. 40-41; [Hindi]. 15 p.; Punjabi Kiyari [Punjabi]. 10 p.; The Folio [Urdu]. 12 p
Forman Christian College Magazine
No full textEditorial. pp. 1; Dr Velte's Last Message. pp. 1; Siraj-ud-Din-The Address at the Memorial Service. pp. 3-6; Datta, S. K.-Essay-A Reminiscence. pp. 6-7; Lucas, J. J.-Essay-A Tribute to Dr. H. C. Velte. pp. 7-8; Griswold, H. P.-Essay-The Rev. H. C. Velte, D. D.. pp. 9-10; Wilson, Ross-Essay-The Passing of a Founder of Forman College. pp. 10-11; Dodds, J.-Essay-In Memoriam. pp. 11-15; Tributes. pp. 15-18; Akhtar, M. Buland-Essay-The Last Post. pp. 18The Late Rev. H. C. Velte, D. D.. after contents pag
Parapanteles sireeshaae Ahmad et Akhtar, sp. nov.
No full textParapanteles sireeshaae Ahmad et Akhtar, sp. nov. (Figs 1–6) Description. FEMALE Holotype. Body length, 2.0 mm. Fore wing: maximum length 2.2 mm, maximum width 1.0 mm. Head. Brownish black in colour, densely covered with hairs; temple, lateral frons, vertex, occiput and face with minute punctures associated with pilosity making surface rough and with dull luster; head in frontal view approximately 1.20 x as wide as medially long, vertex 2.50 x as wide as medially long; frons 1.60 x wide at midheight than long, little raised medially, shallowly punctate; compound eye with hairs, maximum height 2.00x as long as maximum width, inner margins weakly converging towards clypeus; intertentorial distance 2.80 x as long as distance from tentorial pit to compound eye; ocelli forming an obtuse triangle, ocell-ocular distance 1.50 x as long as lateral ocelli distance; width of clypeus 3.70 x as long as height; antennae with 18 segments, 0.95 x as long as body; scrobe prominent; scape 1.10 x as long as wide, pedicel 1.20 x as long as wide, flagellomeres with two ranks of longitudinal placodes, flagellomeres I and II subequal in length, flagellomere I 1.50 x as long as apical flagellomere, flagellomere I and II 2.50 x as long as wide. Palpi pale yellow-brown throughout. Mesosoma (Figs 1–3). Mesoscutum punctate, smooth and shiny along dorsal margin of scutellar sulcus, in dorsal view about 0.90 x as wide as maximum width of head at frontal view; scutellum sparsely punctate with rather long hairs along lateral margin; propodeum with distinct and complete areola, about 1.50 x as long wide; anterior diagonal carinae merged with anterior rugulose sculpturing, transverse carinae percurrent and branched laterally into costulae, surface of propodeum finely rugose on dorsal face, mostly smooth posteriorly; mesopleuron finely punctate and covered with short hairs in anterior third, smooth and shiny elsewhere, postero-lateral area depressed; metanotum laterally finely punctate and densely pilose in posterior third, smooth and shiny elsewhere. Legs. Prothoracic and mesothoracic legs entirely light brown except infuscate extreme bases of coxa, hind coxa rather large, more than 0.50 x as long as metasoma, its finely punctate surface with short hairs making the surface rough with dull luster, apical spurs of hind tibiae shorter than hind basitarsi. Wings. Tegulae pale yellowish, translucent. Fore wing veins light brown; stigma usually paler proximally or over much of surface, 2.60 x as long as wide. Fore wing with r and 3 RSa not meeting at distinct angle, R 1 subequal to length of stigma, 1.90 x as long as distance from its distal end to end of 3 RS fold along wing edge, length of 1 M 2.30 x as long as m-cu, 0.30 x as long as M+CU and 6.00x as long as 1 RS, 1 cu a 1.10 x as long as 1 cu b. Hind wing with vannal lobe convex to weakly flattened subapically, 3.30 x as long as wide, evenly fringed with hairs of moderate length. M+CU 1.1 x of 1 M. Metasoma (Figs 4–6). Tergite I slightly longer than widest part, length 1.20 x as long as maximum width, slightly bulging posteriorly with surface punctate-reticulate becoming longitudinally striate posteriorly with a luminescent area medio-posteriorly along the margin. Tergite II sub-rectangular, longitudinally striate, about 3.00x as wide as long, rest of tergites somewhat smooth and shiny; hypopygium evenly sclerotized; ovipositor and sheaths hardly protruding beyond apex of gaster; ovipositor slightly curved ventrally with basal ridge just before apex; ovipositor sheaths covered with short fine hairs. Male. Unknown. Host. Hyposidra successaria (Lepidoptera: Geometridae) Remarks. Parapanteles sireeshaae sp. nov. closely resembles P. masoni Austin et Dangerfield but differs in having the following features: coxae finely punctate with short hairs (vs. smootherd shiny in P. m a s o n i), anterior diagonal carina of propodeum not meeting anterior margin of propodeum (vs. meeting), fore leg except coxae, pale yellowish (vs. brown). In the key given by Valerio et al. (2009), this new species will key in at the couplet no 2 leading to P. masoni. This is to be modified as follows: 2 Areola normally closed at anterior edge, ovipositor and ovipositor sheaths elongate and relatively thin in lateral view; fore telotarsus, ovipositor, ovipositor sheaths and body color variable; from the New World.................. 3 - Areola open at anterior edge, ovipositor and ovipositor sheaths short and relatively thick in lateral view; fore telotarsus, ovipositor, ovipositor sheaths and body color fixed; from the Australia or Oriental........................ 18 18 (2) Coxae smootherd shiny without short hairs, anterior diagonal carina of propodeum meeting anterior margin of propodeum, fore leg except coxae brown .............................................................. P. masoni Austin et Dangerfield - Coxae finely punctate with short hairs, anterior diagonal carina of propodeum not meeting anterior margin of propodeum (Fig. 3), fore leg except coxae, pale yellowish .................... P. sireeshaae Ahmead et Akhtar, sp. nov. Consequently the couplet 18 added at the end will distinguish the species in the key. The type of Parapanteles shivranginii Sathe et Ingawale 1989 (species reported from Oriental region) could not be accessed either at Department of Zoology, Shivaji University, Kolhapur, or at the Zoological Survey of India, Kolkata. Its original description is inadequet especially with regard to the comparison of different body parts and description of metasoma. Type material. Holotype (female): INDIA, Andhra Pradesh, Bapatla, 1.VIII. 2008, reared from Hyposidra successaria on Tinospora cordifolia in betel vine garden, coll. K. Sireesha, deposited in National Pusa Collection (NPC), Indian Agricultural Research Institute, New Delhi, India. Paratypes: 6 females, same data as holotype; deposited in NPC, except one female in the Department of Zoology, Aligarh Muslim University, Aligarh, India. Etymology. The species is named after the collector Dr. K. Sireesha, Scientist, Herbal Garden Scheme, Rajendranagar, Hyderabad.Published as part of Akhtar, Mir Samim & Ahmad, Zubair, 2010, Description of two new species of Microgastrini (Hymenoptera: Braconidae) from India, pp. 57-62 in Zootaxa 2608 on pages 58-60, DOI: 10.5281/zenodo.19776
Pholetesor hayati Akhtar, sp. nov.
No full textPholetesor hayati Akhtar, sp. nov. (Figs 7–12) Description. FEMALE Holotype. Body length 2.8 mm. Fore wing length 3.0 mm, width 1.2 mm. Head. Brownish black in colour. Head in frontal view approximately 1.10 x as wide as medially long, vertex 2.80 x as wide as medially long. Frons 1.40 x wider midheight than long, little raised medially, shallowly punctate; compound eye with hairs, maximum height 1.50 x as long as maximum width, inner margins weakly converging towards clypeus; intertentorial distance 1.40 x as long as distance from tentorial pit to compound eye; ocell-ocular distance 1.70 x as long as lateral ocelli distance; width of clypeus 2.50 x as long as height; antennae with 18 segments, slightly smaller than body, scrobe prominent; scape 1.20 x as long as wide, pedicel 1.20 x as long as wide, flagellomeres with two ranks of longitudinal placodes, flagellomeres I and II sub equal in length, length of flagellomere I 1.60 x as long as length of apical flagellomere, flagellomere I 2.30 x as long as wide, flagellomere II 2.00x as long as wide; flagellomere VII 2.10 x as long as wide. Palpi pale yellowbrown throughout. Mesosoma (Figs 7–9). Mesoscutum in dorsal view about 0.90 x as wide as head, shallowly punctate, becoming less strong posteriorly; surface with strong satiny sheen. Pronotal furrow distinctly but irregularly crenulate. Scutoscutellar scrobe sharp, narrow, composed of somewhat confluent pits, arched weakly medially, not set in depression. Scutellar disc shallowly punctate, slightly longer than maximum width. Metanotum strongly retracted from scutellum anteriorly, exposing mesothoracic postphragma; transverse carinae at about midlength moderately developed. Propodeum about 2.03 x as wide as long at longest point, smooth to punctate anterolaterally, rugulose and depressed in posterolateral corners except for scattered irregular peripheral ridges; anteromedially with weak transverse ridging; posteriorly with a series of ridges extending obliquely on either side from nucha. Legs. Prothoracic and mesothoracic legs entirely light yellow-brown except infuscate extreme bases of coxae, tibial apices and most of distal portions of tarsi. Inner apical spurs of hind tibiae 1.20 x as long as outer, about half as long as hind basitarsi. Wings. Tegulae pale yellowish, translucent. Fore wing veins light yellow-brown, stigma usually paler proximally or over much of surface, 2.70 x as long as wide. R 1 1.10 x as long as stigma, 1.80 x as long as distance from its distal end to end of 3 RS fold along wing edge. r curved, meeting it at an indistinct curved angle, 1 M 2.70 x as long as m-cu, 0.40 x as long as M+CU and 5.50 x as long as 1 RS, 1 cu a 1.50 x as long as 1 cu b. Hind wing with vannal lobe weakly flattened subapically, 3.30 x as long as wide, evenly fringed with hairs of moderate length. M+CU 1.2 x of 1 M. Metasoma (Figs 10–12). Tergite I anteriorly longitudinally costulate around base, posteriorly rugose to aciculorugose, 1.10 x as long as posteriorly wide, narrowing posteriorly, usually with lateral margins nearly straight. Tergite II rugose laterally, smooth medially, trapezoidal in shape, 1.90 x as wide posteriorly as long medially and 2.00x as wide posteriorly as long anteriorly; lateral margins weakly arched, often bordered by roughened, darkened regions of laterotergites; posterior crenulate margin nearly straight to little concave. Tergite III 1.30 x as long as longer than II, completely smooth and not polished, remaining terga polished; colour often mostly dark brown to black. Laterotergites pale yellow, posterior part of the tergite III–VI with light yellow to white. Hypopygium subequal to slightly shorter than basitarsi, evenly pigmented and sclerotized; tip weakly acuminate. Ovipositor sheaths weakly decurved over expanded distal portions, entire length slightly longer than hind basitarsi. Male. Similar to female except: antennae longer than females, clearly longer than body or fore wings, with more slender distal flagellomeres. Legs usually more yellowish-brown; extent to black coloration on hind coxae, tibiae often greater. Wing venation usually more darkly grey-brown. Metasomal tergites less roughly sculptured; tergite I usually with more curved lateral margins; tergite II often less transverse. Host. Unknown Remarks. Closely resembles P. salalicus (Mason), but differs in having frons 1.4 x as wide at midheight than long (vs. less than 1.4 x in P. s a l a l i c u s), tergite II rugulose laterally and smooth medially (vs. completely rugose), tergite III completely smooth (vs. sculptured anteromedially). Type material. Holotype Female: INDIA: Jammu and Kashmir, Srinagar, Mirgund, 10.III. 2009, from cocoons on the mulberry leaf, coll. Niquat Mahmood; Paratypes: 2 Females and 5 Males with same data as holotype are deposited in National Pusa Collection (NPC), Indian Agricultural Research Institute, New Delhi. Etymology. The species is named after Dr. Mohammad Hayat, former Professor, Department of Zoology, Aligarh Muslim University, Aligarh.Published as part of Akhtar, Mir Samim & Ahmad, Zubair, 2010, Description of two new species of Microgastrini (Hymenoptera: Braconidae) from India, pp. 57-62 in Zootaxa 2608 on pages 60-61, DOI: 10.5281/zenodo.19776
Photovoltaic applications of Si and Ge thin films deposited by PECVD
No full textThis thesis represents a systematic study of amorphous silicon microcrystalline silicon and germanium thin films, and a-Si:H thin film solar cells fabricated using an OPT plasma lab 100 RF PECVD system carried out with a view to studying novel lighttrapping structures for thin film solar cells and novel IR photovoltaic cells. The work includes the optimisation of amorphous based single layers by optical and electrical characterisation, their doping and the fabrication and optimisation of single junction solar cells. These developments were extended to include deposition of microcrystalline and germanium films with the aim of developing a range of multijunction and single junction research devices. The optical characterisation of intrinsic amorphous based layers shows that device-grade layer fabrications are achievable with more than 90% absorption in the 450 to 550 nm wavelength range which can be deposited at 4-5?A/s with good thickness uniformity. The bandgap of intrinsic amorphous layers can be tuned from 1.4 to 1.7 eV. Secondary Ion Mass Spectroscopy (SIMS) depth profile characterisation has verified that doping levels in p-type and n type are in the range of 1021 atoms/cm3 which can maintain high open circuit voltage of 0.83V in the single junction device. Systematic single layers well as in-device optimisations lead to the best single junction devices fabricated at a temperature of 250oC and at a pressure of 350 mT and of initially 8.22% efficiency. Initial quantum efficiency (QE) measurements show 75% photon absorption at 550 nm wavelength. A novel technique of wavelength and angle resolved scattering (WARS) measurements have been used to analyse the effects of textured TCOs on light-trapping in single junction device. Showing Asahi-U to be the best substrate with regards to light-trapping, although thicker films benefited more from TEC8 . Deposition of microcrystalline silicon and germanium have also been reported. More focus has been given to optical characterisation of germanium films whose absorption has reached more than 70% in 400 to 1600 nm wavelength range with successful n-type and p-type doping. Ohmic contacts with a low resistivity of 0.029-cm for p-type Ge with the usage of Ni have been achieved. The overall working capacity of the OPT PECVD tool has been analysed and it was concluded that chamber design modification are essential for the system to work in a multidisciplinary field to avoid serious chamber contamination and 10% efficient a:Si:H benchmarks
SPECIES RICHNESS, ALPHA AND BETA DIVERSITY OF TREES, SHRUBS AND HERBACEOUS PLANTS IN THE WOODLANDS OF SWAT, PAKISTAN
No full textThe variation in species richness and diversity of trees, shrubs and herbs in the mountains of Miandam, Swat, North Pakistan, along an elevation gradient between 1600 m and 3400 m was explored. Field data were collected in 18 altitudinal intervals of 100 m each. Polynomial regression was used to find relations of the different growth forms with elevation. The Shannon index was used for calculating alpha-diversity and the Simpson index for beta-diversity. Species richness and alpha-diversity of herbs were unrelated to elevation. Herbaceous species turnover was high, ranging between 0.46 and 0.89, with its maximum between 2700 and 3000 m. Hump-shaped relationship was observed for shrubs with maximum richness between 2000 and 2200 m; and alpha-diversity decreased monotonically. Turnover of shrub species was highest between 2000 and 2500 m. Tree species richness was highest at low elevations, and alpha-diversity was relatively low along the entire gradient. Tree species turnover was also high in the lower zone and again at 2600-2800 m. Species richness of all vascular plants was highest at 2200-2500 m, and alpha-diversity was highest in the lower part of the gradient. Beta diversity of all growth forms was quite high ranging between 0.53 and 0.87along the entire gradient reflecting high species and structural turnover
The Folio: F. C. C. Magazine
No full textSwan Song. pp. 1; Hakim, A. S.-Happy Ramblings. pp. 2-3; Jain, M. P.-Essay-A Study in Eugene O'Neill. pp. 3-7; Carter, W. D.-Essay-Russia, the League and World Peace. pp. 8-14; Qureshi, A. H.-Essay-On Reading and Writing. pp. 14-16; On Howlers. pp. 16-18; Naseer, A. D.-Poetry-Iqbal and the Poetry. pp. 18-24; Kasim Ali Khan-The Message. pp. 24; Dass, I. Dharam-A Flood. pp. 25-26; Thirty Years Ago. pp. 26-27; Brave New World. pp. 27; Exhibition Gallery. pp. 28-32; Gargoyles. pp. 32-35; Akhtar, M. Buland-News-Sports. pp. 35-36; [Hindi]. 15 p.; Punjabi Kiyari [Punjabi]. 11 p.; The Folio [Urdu]. 15 p.The F. C. College Basket-Ball Team, 1934-35: winners of the Punjab Olympic Championship and Stewart Quadrangular Shield. after contents page; Exhibition. after page 28; The Proctoral System which is to guard our morals. after page 32; 2 Advertisements. after page 3
SPECIES RICHNESS, ALPHA AND BETA DIVERSITY OF TREES, SHRUBS AND HERBACEOUS PLANTS IN THE WOODLANDS OF SWAT, PAKISTAN
No full textThe variation in species richness and diversity of trees, shrubs and herbs in the mountains of Miandam, Swat, North Pakistan, along an elevation gradient between 1600 m and 3400 m was explored. Field data were collected in 18 altitudinal intervals of 100 m each. Polynomial regression was used to find relations of the different growth forms with elevation. The Shannon index was used for calculating alpha-diversity and the Simpson index for beta-diversity. Species richness and alpha-diversity of herbs were unrelated to elevation. Herbaceous species turnover was high, ranging between 0.46 and 0.89, with its maximum between 2700 and 3000 m. Hump-shaped relationship was observed for shrubs with maximum richness between 2000 and 2200 m; and alpha-diversity decreased monotonically. Turnover of shrub species was highest between 2000 and 2500 m. Tree species richness was highest at low elevations, and alpha-diversity was relatively low along the entire gradient. Tree species turnover was also high in the lower zone and again at 2600-2800 m. Species richness of all vascular plants was highest at 2200-2500 m, and alpha-diversity was highest in the lower part of the gradient. Beta diversity of all growth forms was quite high ranging between 0.53 and 0.87along the entire gradient reflecting high species and structural turnover
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