Vehicle license plate detection using region-based convolutional neural networks

Rafique, Muhammad Aasim,Pedrycz, Witold,Jeon, Moongu SPRINGER VERLAG 2018 SOFT COMPUTING Vol. No.

Microstructural features and mechanical properties of 18 MeV He⁺ ions irradiated pure Zr

Rafique, M.,Chae, S.,Kim, Y.-S. WORLD SCIENTIFIC 2016 MODERN PHYSICS LETTERS B Vol.30 No.32

Electrochemical corrosion study of helium ions implanted Zircaloy-4 in chloride media

Rafique, Mohsin,Khan, Atika,Afzal, Naveed,Farooq, Ameeq,Imran, M. Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.3

In this work, an attempt is made to improve the electrochemical corrosion resistance of Zircaloy-4 by helium ions implantation. For this purpose, the Zircaloy-4 was implanted with 300 keV helium ions of fluences 1 × 10¹³, 1 × 10¹⁵, and 1 × 10¹⁶ ions-cm^-2 by using Pelletron Accelerator. Electrochemical tests of pristine and ion-implanted samples were performed in NaCl solution and their potentiodynamic polarization curves were obtained. The results showed enhancement of the corrosion resistance of Zircaloy-4 after helium ions implantation. The corrosion rate and current density of the material were significantly reduced by the helium implantation. The decrease in corrosion parameters was attributed to helium ions diffusion inside Zircaloy-4 that reduced the electrons flow from the samples.

A facile hydrothermal synthesis of highly luminescent NaYF₄:Yb³⁺/Er³⁺ upconversion nanoparticles and their biomonitoring capability

Rafique, Rafia,Baek, Seung Hoon,Phan, Le Minh Tu,Chang, Sung-Jin,Gul, Anam Rana,Park, Tae Jung Elsevier S.A. 2019 Materials Science and Engineering C Vol. No.

<P><B>Abstract</B></P> <P>Using a facile hydrothermal procedure, hydrophilic NaYF<SUB>4</SUB>: Yb<SUP>3+</SUP>/Er<SUP>3+</SUP> nanoparticles (NPs) have been prepared as lanthanide-doped upconversion (UC) materials exhibiting different morphologies, crystal phases and luminescence intensity. The upconversion nanoparticles (UCNP) were characterized by means of electron microscopy and spectroscopy, X-ray diffraction (XRD) and photoluminescence analysis. The molar concentration of reactants and volumes of NaF affect the shapes and uniformity of the synthesized NPs. These parameters also have influence on crystal phase and luminescence intensity of the NPs. Adjusting hydrothermal reaction time and dopant concentration also enable the synthesis of NPs with strong UC luminescence. The as-prepared UCNP showed cellular nontoxicity to HeLa cells, and thus they are capable as promising agents for biological imaging.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Fabrication of NaYF<SUB>4</SUB>:Yb<SUP>3+</SUP>/Er<SUP>3+</SUP>, upconversion nanoparticles (UCNPs) </LI> <LI> Molar concentration of NaF and reactants affects shapes and uniformity of nanoparticle. </LI> <LI> Adjusting reaction time and dopant concentration enhance UC luminescence of UCNPs. </LI> <LI> Optimized conditions are promising for <I>in vitro</I> HeLa cell imaging. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

EFFECT OF WINTER SUPPLEMENTATION ON THE PERFORMANCE OF BALOCHI EWES GRAZING NATIVE RANGELANDS IN HIGHLAND BALOCHISTAN

Rafique, S.,Munir, M.,Sultani, M.I.,Rehman, A. Asian Australasian Association of Animal Productio 1991 Animal Bioscience Vol.4 No.4

Eighty-two ewes of Balochi breed, two to four years of age were used in a completely randomized design to study the effect of winter supplementation on their performance in Kalat area of Balochistan and randomly divided into two groups of 40 and 42 animals. Two treatments (T1 and T2) studied were : 250 gm/animal/day of a 50 : 50 mixture of cottonseed cake and barley grain fed from Oct. 20 to Dec. 18, 1988 plus grazing and 500 gm/animal/day of the same feed mixture fed from Oct. 9 to Dec. 18, 1988 in addition to grazing. Lucerne hay and wheat straw in a 50 : 50 ratio were provided to all the ewes for a period of one month from Jan. 6, 1989 @ 320 gm/animal/day to sustain them in severe winter. Same feeding levels to the same ewe groups were again fed from Mar. 1 to May 27, 1989. Three breeding rams stayed with the flock from Nov. 1 to Dec. 13, 1988. Lambing took place from Apr. 2 to May 12, 1989. Conception, lambing and mortality percentage was found different (P<.05) between T1 and T2 (12.5 vs 14.8 kg). The ewes on T2 maintained higher body weights throughout winter than the ewes on T1. The results are suggestive of improvement in conception rate with winter supplementation (flushing) and decrease in ewe mortality. Late-gestation and early-lactation supplemental feeding of ewes results in increases in weaning weights of their lambs.

Two-sex life table and predation rate of Cybocephalus flavocapitis Smith (Coleoptera: Cybocephalidae) reared on Aulacaspis yasumatsui Takagi (Hemiptera: Diaspididae), in Taiwan

Rafique Bailey,Niann-Tai Chang,Po-Yung Lai 한국응용곤충학회 2011 Journal of Asia-Pacific Entomology Vol.14 No.4

Development, survival, and fecundity of the predator, Cybocephalus flavocapitis Smith, reared on its host Aulacaspis yasumatsui Takagi, were studied at 24 °C, 70±10% RH, and photoperiod of 12:12 (L:D)h under laboratory conditions. Developmental periods for egg, larval, and pupal stages were 6.4, 12.1 and 14.3 d,respectively. The mean longevity of adults was 85.1 d. Raw life history data of all individuals were pooled and analyzed according to the age-stage, two-sex life table theory. The intrinsic rate of increase (r) was 0.05 d^(−1),the finite rate of increase (λ) was 1.05 d^(−1), the net reproductive rate (R0) was 29.1 offspring, and the mean generation time (T) was 63.3 d. When we incorporated the age-stage variability of predation rate with the two-sex life table, our results indicated that the predation rates of larvae and adults were 743 eggs and 1595scales, respectively. The net predation rate of C. flavocapitis is 1874 scales. Additionally, we compared life table results of C. flavocapitis with those of a previous life table study on Cybocephalus nipponicus because both species are currently used for the biological control of A. yasumatsui in Taiwan.

Life table of cycad scale, Aulacaspis yasumatsui (Hemiptera: Diaspididae), reared on Cycas in Taiwan

Rafique Bailey,Po-Yung Lai,Ti- Chuan Hsu,Niann-Tai Chang 한국응용곤충학회 2010 Journal of Asia-Pacific Entomology Vol.13 No.3

Aulacaspis yasumatsui Takagi (Hemiptera: Diaspididae), an invasive scale insect, attacks different species of Cycas (Cycadales: Cycadaceae) in Taiwan. Development, survival and fecundity of A. yasumatsui were studied on Cycas taitungensis at 24 °C, 70±10% RH, and a photoperiod of 12:12 (L:D) h under laboratory conditions. Data on the life history of A. yasumatsui were analyzed using the age-stage, two-sex life table, to address variable development rates among individuals and between sexes. The egg incubation time was 7.26 days for both females and males and female nymphal development duration was 28.65 days. The development duration of male nymphal stages+pupal stage was 19 days. The total pre-oviposition period (TPOP) was 35.92 days. The maximum longevity of female adults was 67 days and 1 day for males. The intrinsic rate of increase (r) was 0.100 day-1, the finite rate of increase (λ) was 1.11 day-1, the net reproduction rate (Ro) was 111.51 offspring /individual, and the mean generation time (T) was 47.24 day. Life table data can be used to project population growth, to design mass rearing programs and to establish management tactics to control insect pests.

Don't Be Depth Charged by the Depth Gauge

Rafique, Bilal,Varghese, Jajini,Toft, Neil Korean Society of Plastic and Reconstructive Surge 2017 Archives of Plastic Surgery Vol.44 No.4

Fabrication of Br doped ZnO nanosheets piezoelectric nanogenerator for pressure and position sensing applications

Rafique Sumera,Kasi Ajab Khan,Aminullah,Kasi Jafar Khan,Bokhari Muzamil,Zafar Shakoor 한국물리학회 2021 Current Applied Physics Vol.21 No.-

In this research, a unique strategy was developed to enhance the output performance of 2D ZnO nanosheets based piezoelectric nanogenerator (PENG). The Br doped 2D ZnO nanosheets were fabricated by facile hydrothermal method on nanoporous anodic aluminum oxide (AAO) template. Along with structural and optical characterization of Br doped 2D ZnO nanosheets, the electrical output performance of Br doped 2D ZnO PENG was demonstrated under external mechanical force. The corresponding output voltage of Br doped 2D ZnO nanosheets PENG reached to 8.82 V at 6HZ, which is 3 times higher than undoped ZnO nanosheets PENG. The output power density of Br doped 2D ZnO nanosheets PENG reached to 38.8962μWcm 2 at an external load resistanec of about 2 MΩ. The Br doping in ZnO nanosheets significantly increased the sensitivity of PENG for pressure sensing and the flexibility of PENG contribute in the application of position sensing.

FREQUENCY OF COTTONSEED CAKE SUPPLEMENTATION FOR YEARLING HEIFERS ON BLUE GRAMA RANGE

Rafique, S.,Wallace, J.D.,Parker, G. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.2

Yearling replacement heifers were used in a two-year study at the Fort Stanton Experimental Ranch near Capitan, New Mexico, USA to compare frequency (once versus three times weekly) of feeding a cottonseed cake supplement. The study involved periods of 130 days (January 4 through May 14) in 1985, and 146 days (December 4 through April 29) in 1986. In each year, supplemental periods were just before the breeding season (natural breeding in multiple-sire groups) that lasted for 75 days during first year and 60 days during second year. During the first year, all (83) heifers (Angus $\times$ Hereford) were supplemented at a level equivalent to 45 kg/head daily and during second year, all (69) heifers (Angus $\times$ Hereford, Hereford) were fed at a level equivalent to .68 kg/head daily. In the first year, heifers were sorted by initial weight into two replications, i.e., those weighing under 223 kg were placed in replicate 1 and those weighing over 223 kg were placed in replicate 2. During the second year, heifers were sorted by breed into two replications, i.e., Angus $\times$ Hereford heifers were placed in replicate 1 and Hereford heifers in replicate 2. Each year, half of the heifers in each replication were supplemented once weekly and the other half three time weekly. Weight gains of heifers were similar for the two treatments over both years of study. During the first year, weight gains for heifers supplemented once or thrice weekly (.23 vs .21 kg daily, respectively) did not differ (p>.05) and the same trend for the second year (.15 vs .16 kg daily, respectively) was observed. Similarly, breeding performance was consistent with weight gains and no difference (p>.05) between treatments was observed either year. Lower conception rates during the second tear of study (92 vs 72% for years 1 and 2, respectively) were due mainly to involvement of Hereford heifers that had an average weight of 232 kg at the start of breeding season and conception rate of 54% (averaged across both supplemental treatments). Based on the combined results of both trials, frequency of supplementation did not affect growth rate of yearling heifers nor did it influence their subsequent conception rate.