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Ali Zahid,Mushtaq M. Asim,Abbas Yasir,Liu Wei,Wu Zhanpeng 한국탄소학회 2023 Carbon Letters Vol.33 No.3
The development of heteroatoms doped inorganic nanocrystal-carbon composites (INCCs) has attained a great focus for energy applications (energy production and energy storage). A precise approach to fabricate the INCCs with homogenous distribution of the heteroatoms with an appropriate distribution of metal atoms remains a challenge for material scientists. Herein, we proposed a facile two-step route to synthesize INCC with doping of metal (α-Fe2O3) and non-metals (N, P, O) using hydrogel formed by treating hexachlorocyclotriphosphazene (HCCP) and 3, 4, 5-trihydroxy benzoic acid (Gallic acid). Metal oxide was doped using an extrinsic doping approach by varying its content and non-metallic doping by an intrinsic doping approach. We have fabricated four different samples (INCC-0.5%, INCC-1.0%, INCC-1.5%, and INCC-2.0%), which exhibit the uniform distribution of the N, P, O, and α-Fe2O3 in the carbon architecture. These composite materials were applied as anode material in water oxidation catalysis (WOC); INCC-1.5% electro-catalyst confirmed by cyclic voltammetry (CV) with a noticeable catholic peak 0.85 V vs RHE and maximal current density 1.5 mA.cm−2. It also delivers better methanol tolerance and elongated stability than RuO2; this superior performance was attributed due to the homogenous distribution of the α-Fe2O3 causing in promotion of adsorption of O2 initially and a greater surface area of 1352.8 m2/g with hierarchical pore size distribution resulting higher rate of ion transportation and mass-flux.
Effect of once-a-day milk feeding on behavior and growth performance of pre-weaning calves
Mushtaq Syed Husnain,Hussain Danish,Hifz-ul-Rahman,Naveed-ul-Haque Muhammad,Ahmad Nisar,Sardar Ahmad Azeem,Chishti Ghazanfar Ali 아세아·태평양축산학회 2024 Animal Bioscience Vol.37 No.2
Objective: The objectives of the present study were to evaluate the effects of once-a-day milk feeding on growth performance and routine behavior of preweaning dairy calves. Methods: At 22nd day of age, twenty-four Holstein calves were randomly assigned to one of two treatment groups (n = 12/treatment) based on milk feeding frequency (MF): i) 3 L of milk feeding two times a day; ii) 6 L of milk feeding once a day. The milk feeding amount was reduced to half for all calves between 56 and 60 days of age and weaning was done at 60 days of age. To determine the increase in weight and structural measurements, each calf was weighed and measured at 3 weeks of age and then at weaning. The daily behavioral activity of each calf was assessed from the 22nd day of age till weaning (60th day of age) through Nederlandsche Apparatenfabriek (NEDAP) software providing real-time data through a logger fitted on the calf’s foot. Results: There was no interaction (p≥0.17) between MF and sex of the calves for routine behavioral parameters, body weight and structural measurements. Similarly, there was no effect of MF on routine behavioral parameters, body weight and structural measurements. However, the sex of the calves affected body weight gain in calves. Male calves had 27% greater total body weight and average daily gain than female calves. There was no effect of the sex of the calves on behavioral measurements. Collectively, in the current study, no negative effects of a once-a-day milk feeding regimen were found on routine behavioral and growth parameters of preweaning calves in group housing. Conclusion: Once-a-day milk feeding can be safely adopted in preweaning calves from 22nd day of age.
Evaluation of steady-state characteristics for solid oxide carbon fuel cell short-stacks
Mushtaq, Usman,Mehran, Muhammad Taqi,Kim, Sun-Kyoung,Lim, Tak-Hyoung,Naqvi, Syed Asad Ali,Lee, Jong-Won,Lee, Seung-Bok,Park, Seok-Joo,Song, Rak-Hyun ELSEVIER 2017 APPLIED ENERGY -BARKING THEN OXFORD- Vol.187 No.-
<P>Solid oxide based carbon fuel cells (SO-CFCs) offer clean and efficient utilization of carbon based fuels for energy conversion. In this work, we have realized and operated 100 and 200 W-class solid oxide carbon fuel cell (SO-CFC) short stacks to investigate the fuel supply, electrochemical performance, continuous operation, long-term stability, and scale-up characteristics for SO-CFC based power generation systems. Different configurations for 100 and 200 W class short stacks were employed for integrated Boudouard gasification and carbon fuel supply at the stack level. For the 100 W class SO-CFC short stack, maximum stack power of 80.4, 93.5, and 111.5 W was achieved at 700, 750, and 800 degrees C, respectively, while the 200 W class SO-CFC short stack produced maximum power of 224.4 W at 750 degrees C when operated on carbon fuel. Both SO-CFC short stacks were operated continuously at galvanostatic conditions to study the fuel supply conditions and long-term degradation behavior of the tubular cells in the short stacks. A postmortem analysis of the SO-CFC anode was also performed by SEM and XRD to elucidate the reasons for stack performance degradation during relatively longer operation with carbon fuels. Through a detailed analysis of the dry gasification in the integrated gasifier, the electrochemical performance of the SO-CFC stacks, and the post operation diagnosis of the cells, this study provides details on the important challenges in scaling-up SO-CFC technology from a single-cell to a several hundred watt power generation system. (C) 2016 Elsevier Ltd. All rights reserved.</P>
Aamar Mushtaq,Muhammad Tariq,Maqsood Ahmed,Zongshan Zhou,Imran Ali,Raja Tahir Mahmood 한국식물병리학회 2021 Plant Pathology Journal Vol.37 No.3
Glomerella leaf spot (GLS) is a severe infectious dis- ease of apple whose infective area is growing gradually and thus poses a huge economic threat to the world. Different species of Colletotrichum including Colleto- trichum gloeosporioides are responsible for GLS. For efficient GLS control, it is important to understand the mechanism by which the cruciferous crops and C. gloeosporioides interact. Arginine is among one of the several types of amino acids, which plays crucial role in biochemical and physiological functions of fungi. The arginine biosynthesis pathway involved in virulence among plant pathogenic fungi is poorly understood. In this study, CgCPS1 gene encoding carbamoyl phos- phate synthase involved in arginine biosynthesis has been identified and inactivated experimentally. To as- sess the effects of CgCPS1, we knocked out CgCPS1 in C. gloeosporioides and evaluated its effects on virulence and stress tolerance. The results showed that deletion of CgCPS1 resulted in loss of pathogenicity. The Δcgcps1 mutants showed slow growth rate, defects in appres- sorium formation and failed to develop lesions on apple leaves and fruits leading to loss of virulence while complementation strain (CgCPS1-C) fully restored its pathogenicity. Furthermore, mutant strains showed extreme sensitivity to high osmotic stress displaying that CgCPS1 plays a vital role in stress response. These findings suggest that CgCPS1 is major factor that me- diates pathogenicity in C. gloeosporioides by encoding carbamoyl phosphate that is involved in arginine bio- synthesis and conferring virulence in C. gloeosporioides.
Ahmed Ammar,Azam Ali,Wang Yanen,Zhang Zutao,Li Ning,Jia Changyuan,Mushtaq Ray Tahir,Rehman Mudassar,Gueye Thierno,Shahid Muhammad Bilal,Basit Ali Wajid 나노기술연구협의회 2021 Nano Convergence Vol.8 No.37
Additively manufactured nano-MEH systems are widely used to harvest energy from renewable and sustainable energy sources such as wind, ocean, sunlight, raindrops, and ambient vibrations. A comprehensive study focusing on in-depth technology evolution, applications, problems, and future trends of specifically 3D printed nano-MEH systems with an energy point of view is rarely conducted. Therefore, this paper looks into the state-of-the-art technologies, energy harvesting sources/methods, performance, implementations, emerging applications, potential challenges, and future perspectives of additively manufactured nano-mechanical energy harvesting (3DP-NMEH) systems. The prevailing challenges concerning renewable energy harvesting capacities, optimal energy scavenging, power management, material functionalization, sustainable prototyping strategies, new materials, commercialization, and hybridization are discussed. A novel solution is proposed for renewable energy generation and medicinal purposes based on the sustainable utilization of recyclable municipal and medical waste generated during the COVID-19 pandemic. Finally, recommendations for future research are presented concerning the cutting-edge issues hurdling the optimal exploitation of renewable energy resources through NMEHs. China and the USA are the most significant leading forces in enhancing 3DP-NMEH technology, with more than 75% contributions collectively. The reported output energy capacities of additively manufactured nano-MEH systems were 0.5–32 mW, 0.0002–45.6 mW, and 0.3–4.67 mW for electromagnetic, piezoelectric, and triboelectric nanogenerators, respectively. The optimal strategies and techniques to enhance these energy capacities are compiled in this paper. Graphical Abstract
Manzoor Ahmad Wani,Showkat Ali Zargar,Ghulam Nabi Yatoo,Inaamul Haq,Altaf Shah,Jaswinder Singh Sodhi,Ghulam Mohammad Gulzar,Mushtaq Khan 대한소화기내시경학회 2020 Clinical Endoscopy Vol.53 No.4
Background/Aims: This study aimed to study the endoscopic yield, appropriateness, and complications of pediatric endoscopyperformed by adult gastroenterologists in an adult endoscopic suite. Methods: This a retrospective study in which records of all the patients less than 18 years of age who underwent endoscopy in the last5 years were studied. The indications of endoscopy in children were categorized as appropriate or inappropriate per the latest guidelinesby American Society for Gastrointestinal Endoscopy and North American Society for Pediatric Gastroenterology, Hepatology andNutrition. Positive endoscopic yield was defined as the presence of any abnormality on endoscopy. Results: Among the total of 822 children (age <18 years), the most common indications were variceal surveillance/eradication in 157(19.1%), followed by dyspepsia in 143 (17.4%), upper gastrointestinal (UGI) bleeding in 136 (16.5%), recurrent abdominal pain in 94(11.4%), unexplained anemia in 74 (9%), recurrent vomiting in 50 (6.08%), chronic refractory gastroesophageal reflux disease in 34 (4.1%)and others; 780 out of 822 endoscopic procedures (94.9%) done in children were appropriate as per the guidelines. The endoscopicyield was 45.8%, highest in patients with UGI bleeding (71.3%), followed by variceal surveillance (54.8%), recurrent vomiting (38%),dyspepsia (37.8%), and recurrent abdominal pain (36%). Minor adverse events occurred in 7.3% of children. Conclusions: Pediatric endoscopy performed by an experienced adult gastroenterologist may be acceptable if done in cooperation witha pediatrician.