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| 1 | Assessing soil nitrous oxide emission as affected by phosphorus and nitrogen addition under two moisture levels显示文摘Agricultural soils are deficient of phosphorus(P) worldwide. Phosphatic fertilizers are therefore applied to agricultural soils to improve the fertility and to increase the crop yield. However, the effect of phosphorus application on soil N_2O emissions has rarely been studied. Therefore, we conducted a laboratory study to investigate the effects P addition on soil N_2O emissions from P deficient alluvial soil under two levels of nitrogen(N) fertilizer and soil moisture. Treatments were arranged as follows: P(0 and 20 mg P kg^(–1)) was applied to soil under two moisture levels of 60 and 90% water filled pore space(WFPS). Each P and moisture treatment was further treated with two levels of N fertilizer(0 and 200 mg N kg^(–1) as urea). Soil variables including mineral nitrogen(NH_4^+-N and NO_3~–-N), available P, dissolved organic carbon(DOC), and soil N_2O emissions were measured throughout the study period of 50 days. Results showed that addition of P increased N_2O emissions either under 60% WFPS or 90% WFPS conditions. Higher N_2O emissions were observed under 90% WFPS when compared to 60% WFPS. Application of N fertilizer also enhanced N_2O emissions and the highest emissions were 141 μg N_2O kg^(–1) h^(–1) in P+N treatment under 90% WFPS. The results of the present study suggest that P application markedly increases soil N_2O emissions under both low and high soil moisture levels, and either with or without N fertilizer application. | Bashir Ullah Muhammad Shaaban HU Rong-gui ZHAO Jin-song LIN Shan | 2016 | Journal of Integrative Agriculture2016,15,12: | 2 |
| 2 | A Novel Compact Highly Isolated UWB MIMO Antenna with WLAN Notch显示文摘This paper presents a compact Multiple Input Multiple Output(MIMO)antenna with WLAN band notch for Ultra-Wideband(UWB)applications.The antenna is designed on 0.8mmthick low-cost FR-4 substrate having a compact size of 22mm×30 mm.The proposed antenna comprises of two monopole patches on the top layer of substrate while having a shared ground on its bottom layer.The mutual coupling between adjacent patches has been reduced by using a novel stub with shared ground structure.The stub consists of complementary rectangular slots that disturb the surface current direction and thus result in reducing mutual coupling between two ports.A slot is etched in the radiating patch for WLAN band notch.The slot is used to suppress frequencies ranging from 5.1 to 5.9 GHz.The results show that the proposed antenna has a very good impedance bandwidth of|S11|<−10 dB within the frequency band from 3.1–14 GHz.A low mutual coupling of less than−23 dB is achieved within the entire UWB band.Furthermore,the antenna has a peak gain of 5.8 dB,low ECC<0.002 and high Diversity Gain(DG>9.98). | Muhammad Awais Shahid Bashir Awais Khan Muhammad Asif Nasim Ullah Hend I.Alkhammash | 2023 | Computers, Materials & Continua2023,,4: | 1 |
| 3 | Simultaneous synthesis of bimetallic@3D graphene electrocatalyst for HER and OER显示文摘Currently,the exploration of ultimate energy sources is a hot investigation area for researchers due to the swift diminution of fossil fuels and environmental pollution produced by the ignition of these fossil fuels[1-5].Hydrogen is an ideal alternative energy carrier and is considered to solve such problems due to its high energy density,sustainability,recyclability,and zero COx emission[6-9]. | Nabi ULLAH Meng XIE Shahid HUSSAIN Waleed YASEEN Sayyar Ali SHAH Bashir Adegbemiga YUSUF Chidinma Judith OLUICBO Haroon Ur RASHEED Yuanguo XU Jimin XIE | 2021 | Frontiers of Materials Science2021,15,2: | 0 |
| 4 | Comparative study for machine learning classifier recommendation to predict political affiliation based on online显示文摘In the current era of social media,different platforms such as Twitter and Facebook have frequently been used by leaders and the followers of political parties to participate in political events,campaigns,and elections.The acquisition,analysis,and presentation of such content have received considerable attention from opinion-mining researchers.For this purpose,different supervised and unsupervised techniques have been used.However,they have produced less efficient results,which need to be improved by incorporating additional classifiers with the extended data sets.The authors investigate different su-pervised machine learning classifiers for classifying the political affiliations of users.For this purpose,a data set of political reviews is acquired from Twitter and annotated with different polarity classes.After pre-processing,different machine learning classifiers like K-nearest neighbor,naïve Bayes,support vector machine,extreme gradient boosting,and others,are applied.Experimental results illustrate that support vector machine and extreme gradient boosting have shown promising results for predicting political affiliations. | Hayat Ullah Bashir Ahmad Iqra Sana Anum Sattar Aurangzeb Khan Saima Akbar Muhammad Zubair Asghar | 2021 | CAAI Transactions on Intelligence Technology2021,6,3: | 0 |
| 5 | Molecular detection of Leishmania species in human and animals from cutaneous leishmaniasis endemic areas of Waziristan, Khyber Pakhtunkhwa, Pakistan显示文摘Objectives: To detect Leishmania species in human patients, animal reservoirs and Phlebotomus sandflies in Waziristan, Pakistan. Methods: Tissue smears and aspirates from 448 cutaneous leishmaniasis(CL) suspected patients were analyzed. To sort out role of the reservoir hosts, skin scrapings, spleen and liver samples from 104 rodents were collected. Furthermore, buffy coat samples were obtained from 60 domestic animals. Sandflies were also trapped. All human, animals and sandfly samples were tested by microscopy, kinetoplastic PCR and internal transcribed spacer 1(ITS1) PCR followed by restriction fragment length polymorphism for detection of Leishmania species. Results: An overall prevalence of 3.83% and 5.21% through microscopy and ITS1 PCR respectively was found. However, the statistically non-significant correlation was found between area, gender, and number of lesions. The presence of rodents, sandflies, domestic animals and internally displaced people increased the risk of CL. Using ITS1-PCR-RFLP, Leishmania tropica(L. tropica) was confirmed in 106 samples while 25 of the isolates were diagnosed as Leishmania major(L. major). Similarly, 3/104 rodents were positive for L. major and 14 pools of DNA samples containing Phlebotomus sergenti sandflies were positive for L. tropica. None of samples from domestic animals were positive for leishmaniasis. Conclusions: In the present study, L. tropica and L. major are found to be the main causative agents of CL in study area. Movement of internally displaced people from CL endemic areas presents a risk for nearby CL free areas. To the best of our knowledge, we report for the first time L. major infection in rodents(Rattus rattus) and L. tropica in Phlebotomus sergenti sandflies trapped in Waziristan, Pakistan. | Mubashir Hussain Shahzad Munir Abdullah Jalal Taj Ali Khan Niaz Muhammad Bahar Ullah Khattak Abdullah Khan Irfan Ahmed Zulqarnain Baloch Nawaz Haider Bashir Muhammad Ameen Jamal Kashif Rahim Humaira Mazhar Maira Riaz Noha Watany | 2018 | Asian Pacific Journal of Tropical Medicine2018,11,8: | 0 |