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| 1 | Actual evapotranspiration of subalpine meadows in the Qilian Mountains, Northwest China显示文摘As a main component in water balance,evapotranspiration(ET)is of great importance for water saving,especially in arid and semi-arid areas.In this study,the FAO(Food and Agriculture Organization)Penman-Monteith model was used to estimate the magnitude and temporal dynamics of reference evapotranspiration(ET0)in 2014 in subalpine meadows of the Qilian Mountains,Northwest China.Meanwhile,actual ET(ETc)was also investigated by the eddy covariance(EC)system.Results indicated that ETc estimated by the EC System was 583 mm,lower than ET0(923 mm)estimated by the FAO Penman-Monteith model in 2014.Moreover,ET0 began to increase in March and reached the peak value in August and then declined in September,however,ETc began to increase from April and reached the peak value in July,and then declined in August.Total ETc and ET0 values during the growing season(from May to September)were 441 and 666 mm,respectively,which accounted for 75.73%of annual cumulative ETc and 72.34%of annual cumulative ET0,respectively.A crop coefficient(kc)was also estimated for calculating the ETc,and average value of kc during the growing season was 0.81(ranging from 0.45 to 1.16).Air temperature(Ta),wind speed(u),net radiation(Rn)and soil temperature(Ts)at the depth of 5 cm and aboveground biomass were critical factors for affecting kc,furthermore,a daily empirical kc equation including these main driving factors was developed.Our result demonstrated that the ETc value estimated by the data of kc and ET0 was validated and consistent with the growing season data in 2015 and 2016. | GAO Yunfei ZHAO Chuanyan Muhammad W ASHIQ WANG Qingtao RONG Zhanlei LIU Junjie MAO Yahua GUO Zhaoxia WANG Wenbin | 2019 | Journal of Arid Land2019,11,3: | 8 |
| 2 | Corporate disclosures by family firms显示文摘 | Ashiq Ali Tai-Yuan Chen Suresh Radhakrishnan | 2007 | Journal of Accounting and Economics2007,,1: | 4 |
| 3 | Assessment of Genetic Variation Within Indian Mustard (Brassica juncea) Germplasm Using Random Amplified Polymorphic DNA Markers显示文摘Genetic diversity among 45 Indian mustard (Brassica juncea L.) genotypes comprising 37 germplasm collections, five advance breeding lines and three improved cultivars was investigated at the DNA level using the random amplified polymorphic DNA (RAPD) technique. Fifteen primers used generated a total of 92 RAPD fragments, of which 81 (88%) were polymorphic. Of these, 13 were unique to accession 'Pak85559'. Each primer produced four to nine amplified products with an average of 6.13 bands per primer. Based on pairwise comparisons of RAPD amplification products, Nei and Li's similarity coefficients were calculated to evaluate the relationships among the accessions. Pairwise similarity indices were higher among the oilseed accessions and cultivars showing narrow ranges of 0.77-0.99. An unweighted pair-group method with arithmetic averages cluster analysis based on these genetic similarities placed most of the collections and oilseed cultivars close to each other, showing a low level of polymorphism between the accessions used. However, the clusters formed by oilseed collections and cultivars were comparatively distinct from that of advanced breeding lines. Genetically, all of the accessions were classified into a few major groups and a number of individual accessions. Advanced breeding lines were relatively divergent from the rest of the accessions and formed independent clusters. Clustering of the accessions did not show any pattern of association between the RAPD markers and the collection sites. A low level of genetic variability of oilseed mustard was attributed to the selection for similar traits and horticultural uses. Perhaps close parentage of these accessions further contributed towards their little diversity. The study demonstrated that RAPD is a simple and fast technique to compare the genetic relationship and pattern of variation among the gene pool of this crop. | Muhammad Ayub Khan Malik Ashiq Rabbani Muhammad Munir Saifullah Khan Ajmal Muhammad Azim Malik | 2008 | Journal of Integrative Plant Biology2008,50,4: | 2 |
| 4 | A novel symmetric 10 Gbit/s architecture with a single feeder fiber for WDM-PON based on chirp-managed laser显示文摘We propose the single feeder fiber architecture for wavelength division multiplexing passive optical network(WDM-PON)based on directly modulated chirp managed laser(CML).The downlink(DL)signal output from the laser is converted to return-to-zero(RZ)differential phase shift signal using a pulse carver.The downstream signal is reused as a carrier for the upstream using intensity modulation technique.Simulation results show the error-free performance at symmetric data rate of 10 Gbit/s per channel with negligible power penalty and improved receiver sensitivity for the uplink(UL),over 25 km standard single-mode fiber(SSMF).A low-cost and reduced circuitry network design is implemented on a single feeder fiber with the elimination of differential encoder and one external modulator. | Aftab Hussain 忻向军 Abdul Latif Ashiq Hussain 余重秀 Abid Munir Yousaf Khan Muhammad Idrees Afridi | 2012 | Optoelectronics Letters2012,8,6: | 2 |
| 5 | Performance analysis of the silicon waveguide-based wavelength converter显示文摘The conversion efficiency and noise figure (NF) of the silicon-on-insulator (SOI) waveguide-based wavelength converter are investigated with the coupled equations. The effects of the pump power, the nonlinear absorption and the waveguide length on the conversion efficiency and noise figure are discussed. The conversion efficiency decreases with the increasing pump power and the noise figure is degraded due to the two-photon absorption (TPA) and the TPA-induced free-carrier absorption (FCA) at the higher pump power. With the increasing of the free carrier lifetime, the conversion efficiency will decrease and the noise figure will increase accordingly. The optimal waveguide length depends on the pump power and the free carrier lifetime. In practical applications, the high conversion efficiency and low noise figure can be achieved by choosing suitable parameters of the silicon waveguide. | 王莹 桑新柱 尹霄丽 苑金辉 Ashiq Hussaun 余重秀 忻向军 | 2011 | Optoelectronics Letters2011,7,2: | 2 |
| 6 | The Role of Earnings Levels in Annual Earnings - Returns Studies 显示文摘 | Ashiq Ali Paul Zarowin | 1992 | Journal of Accounting Research1992,,30: | 1 |
| 7 | Industry concentration and corporate disclosure policy显示文摘 | Ashiq Ali Sandy Klasa Eric Yeung | 2014 | 2014 (2-3)2014,,2: | 1 |
| 8 | Country-Specific Factors Related to Financial Reporting and the Value Relevance of Accounting Data显示文摘 | Ashiq Ali Lee-Seok Hwang | 2008 | Journal of Accounting Research2008,,38: | 1 |
| 9 | Structural, magnetic and dielectric properties of Zr–Cd substituted strontium hexaferrite (SrFe 12 O 19 ) nanoparticles显示文摘 | Muhammad Naeem Ashiq Muhammad Javed Iqbal Iftikhar Hussain Gul | 2009 | Journal of Alloys and Compounds2009,,1: | 1 |
| 10 | Adsorption of dyes from aqueous solutions on activated charcoal显示文摘 | Muhammad J. Iqbal Muhammad N. Ashiq | 2006 | Journal of Hazardous Materials2006,,1: | 1 |
| 11 | Physical, electrical and dielectric properties of Ca-substituted strontium hexaferrite (SrFe 12 O 19 ) nanoparticles synthesized by co-precipitation method显示文摘 | Muhammad Javed Iqbal Muhammad Naeem Ashiq Iftikhar Hussain Gul | 2009 | Journal of Magnetism and Magnetic Materials2009,,13: | 1 |
| 12 | Effect of doping of Zr–Zn binary mixtures on structural, electrical and magnetic properties of Sr-hexaferrite nanoparticles显示文摘 | Muhammad Javed Iqbal Muhammad Naeem Ashiq Pablo Hernandez Gomez | 2008 | Journal of Alloys and Compounds2008,,1: | 1 |
| 13 | Structural,electrical,dielectric and magnetic properties of Mn-Nd substituted CoFeO_3 nano sized multiferroics显示文摘A series of Mn x Co_(1-x) Fe_(1-y) Nd_yO_3(where x=0.0–1.0 & y=0.0–0.1) multiferroic nanocrystals was synthesized via sol-gel auto-combustion technique. The structure was confirmed by X-ray diffraction(XRD)while morphology was investigated by scanning electron microscopy(SEM). The electrical resistivity was observed to increase from 2.14 * 10~7 to 8.77 * 10~9 Ω-cm and activation energy was found to increase from 0.64 to 0.75 e V, while the drift mobility decreased from 4.75 * 10^(-13) to 1.27 * 10^(-15)cm^2V^(-1)S^(-1) by the substitution of Mn and Nd contents. The dielectric constant, dielectric loss and dielectric loss factor decrease with frequency and Mn-Nd contents. The saturation magnetization was increased from 34 to 70 emu g^(-1) while the coercivity decreased from 705 to 262 Oe with the increase of substituents.The increase in electrical resistivity and saturation magnetization while decrease in dielectric parameters and coercivity make these nanomaterials suitable for applications in microwave devices and longitudinal magnetic recording media. | Abdul Aziz E.Ahmed Muhammad Naeem Ashiq Muhammad Azhar Khan Nazia Karamat Irshad Ali | 2016 | Progress in Natural Science:Materials International2016,26,4: | 1 |
| 14 | The use of error components models in combining cross section with time series data 显示文摘 | WALLACE T D Hussain Ashiq | 1969 | Econometrica1969,37,1: | 1 |
| 15 | 锆酸锶纳米颗粒光催化还原二氧化碳的研究(英文)显示文摘全球变暖和能源危机使得人们开始同时关注二氧化碳和太阳能的利用.在本工作中,我们制备了Sr Zr O3纳米颗粒,并将其作为催化剂使二氧化碳转化为高能量附加值产品.我们利用超声化学法成功制备了Sr Zr O3纳米材料,并通过X射线衍射(XRD)、拉曼光谱、扫描电子显微镜(SEM)、BET比表面积分析、X射线光电子能谱(XPS)以及紫外-可见吸收光谱(UV/vis)等对样品进行了相应表征.将Sr Zr O3作为催化剂,在300W氙灯光源照射下进行光催化还原二氧化碳实验,结果表明乙醇、甲烷和一氧化碳是主要的光催化产物,反应进行4小时后,三种产物相应的产量分别为41、2.57和1.6μmol g-1.论文分析了三种产物生成的原因.本研究工作表明,Sr Zr O3纳米材料可以作为一种有效的催化剂应用于光催化还原二氧化碳. | Muhammad Naeem Ashiq 王艳杰 Muhammad Fahad Ehsan 贺涛 | 2015 | Science China Materials2015,58,8: | 1 |
| 16 | Country-Specific Factors Related to Financial Reporting and the Value Relevance of Accounting Data 显示文摘 | Ashiq Ali Lee-Seok Hwang | 2008 | Journal of Accounting Research2008,,38: | 1 |
| 17 | A Comprehensive Approach to Well -Integrity Management in Adma- Opco显示文摘 | Ihab Tarmoom Hussain Bin Thabet Saleh Samad Khalid Chishti Ashiq Hussain Mohamed Arafat Adma - Opco | | SPE0,,: | 1 |
| 18 | Dividend increases and future earnings显示文摘 | Ashiq Ali Oktay Urcan | 2012 | Asia-Pacific Journal of Accounting & Economics2012,,1: | 1 |
| 19 | Natural occurrence of mycotoxins in medicinal plants: a review 显示文摘 | Ashiq S Hussain M Ahmad B | 2014 | Fungal Genet Biol2014,66,: | 1 |
| 20 | Adsorption studies of arsenic on nano alurninium doped manganese copper ferrite polymer (MA, VA, AA) composite : Kinetics and mechanism显示文摘 | Malana M A Qureshi R B Ashiq M N | 2011 | Chemical Engineering Journal2011,172,23: | 1 |