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| 1 | 非贵金属单原子催化剂Co_(1)/MXene(Mo_(2)CS_(2))的CO氧化反应机理研究显示文摘MXene是一类由前过渡态金属碳化物、氮化物或碳氮化物构成的新型二维材料.我们利用量子化学方法研究了单原子Co在新型二维MXene材料Mo2CS2上的吸附构型、稳定性和催化性质.研究发现Co原子可以稳定锚定在MXene材料的表面,形成的单原子催化剂适合于催化低温CO氧化.计算表明,吸附的CO和O2分子与Co_(1)/Mo_(2)CS_(2)催化剂表面之间的电荷转移在活化这些小分子时起着重要作用.我们研究了Co1/Mo2CS2催化氧化CO的三种机理:Eley-Rideal(ER),Langmuir-Hinshelwood(LH)和Termolecular Eley-Rideal(TER),发现在低温下这三种反应机理都是可行的.其中在Co_(1)/Mo_(2)CS_(2)催化剂上TER机理具有最高的催化活性,计算的决速步能垒分别为0.67(TER),0.78(LH)和0.88 eV(ER).我们的研究结果表明,利用二维材料MXene发展和设计经济的、非贵金属单原子催化剂具有重要应用前景. | Shamraiz Hussain Talib Sambath Baskaran 于小虎 于琦 Beenish Bashir Shabbir Mahammad Sajjad Hussain 陈学年 李隽 | 2021 | Science China Materials2021,64,3: | 2 |
| 2 | Constructing S-scheme 2D/0D g-C_(3)N_(4)/TiO_(2) NPs/MPs heterojunction with 2D-Ti3AlC2 MAX cocatalyst for photocatalytic CO_(2) reduction to CO/CH_(4) in fixed-bed and monolith photoreactors显示文摘Exfoliated 2D MAX Ti_(3) AlC_(2) conductive cocatalyst anchored with g-C_(3)N_(4)/TiO_(2) to construct 2D/0D/2D het-erojunction has been explored for enhanced CO_(2) photoreduction in a fixed-bed and monolith photoreac-tor.The TiO_(2) particle sizes(NPs and MPs)were systematically investigated to determine effective metal-support interaction with faster charge carrier separation among the composite materials.When TiO_(2) NPs were anchored with 2D Ti_(3) AlC_(2) MAX structure,10.44 folds higher CH_(4) production was observed com-pared to anchoring TiO_(2) MPs.Maximum CH_(4) yield rate of 2103.5μmol g^(−1) h^(−1) achieved at selectivity 96.59%using ternary g-C_(3)N_(4)/TiO_(2)/Ti_(3) AlC_(2)2D/0D/2D composite which is 2.73 and 7.45 folds higher than using binary g-C_(3)N_(4)/Ti_(3) AlC_(2) MAX and TiO_(2) NPs/Ti_(3)AlC_(2) samples,respectively.A step-scheme(S-scheme)photocatalytic mechanism operates in this composite,suppressed the recombination of useful electron and holes and provides higher reduction potential for efficient CO_(2) conversion to CO and CH_(4).More im-portantly,when light intensity was increased by 5 folds,CH_(4) production rate was increased by 3.59 folds under visible light.The performance of composite catalyst was further investigated in a fixed-bed and monolith photoreactor and found monolithic support increased CO production by 2.64 folds,whereas,53.99 times lower CH_(4) production was noticed.The lower photocatalytic activity in a monolith photore-actor was due to lower visible light penetration into the microchannels.Thus,2D MAX Ti_(3) AlC_(2) composite catalyst can be constructed for selective photocatalytic CO_(2) methanation under visible light in a fixed-bed photoreactor. | Muhammad Tahir Beenish Tahir | 2022 | Journal of Materials Science & Technology2022,,11: | 2 |
| 3 | Rmoval of Zn( Ⅱ ) ions from aqueous solution using Moringa Oleifera Lam (horseradilish tree) biomass 显示文摘 | Haq N B Beenish M Muhammad A H | 2007 | Process Biochemistry2007,42,: | 1 |
| 4 | Pakistan- Russia Rapprochement and Current Geo- Politics 显示文摘 | Muhammad Nawaz Khan Beenish Ahaf | 2013 | IPRI Journal2013,,1: | 1 |
| 5 | Estimation of Exhaust Gas Temperature of the Rocket Nozzle using Hybrid Approach显示文摘In this paper the theoretical model is built for ZEpHyR(ZARM Experimental Hybrid Rocket) main engine which is being developed at ZARM institute,Bremen,Germany.The theoretical model is used to estimate the temperature of exhaust gas.The Conjugate Gradient Method(CGM) with Adjoint Problem for Function Estimation iterative technique is used to solve the Inverse Heat Conduction Problem(IHCP) to estimate the heat flux and internal wall temperature at the throat section of the nozzle.Bartz equation is used to calculate the convective heat transfer coefficient.The exhaust gas temperature is determined using the estimated heat flux,the wall temperature at internal surface of nozzle and the heat transfer coefficient.The accuracy of CGM iterative scheme to solve the IHCP is also investigated and its results are presented. | Manohar Karnal Beenish Batul | 2016 | Journal of Thermal Science2016,25,6: | 1 |
| 6 | Treatment Comparison Efficiency of Microbial Amended Agro-waste Biochar Constructed Wetlands for Reactive Black Textile Dye显示文摘 | Beenish Saba Madeeha Jabeen Tariq Mahmood | 2014 | International Proceedings of Chemical Biological and Environmental Engineering2014,65,: | 1 |
| 7 | Distribution, toxicity level, and concentration of polycyclic aromatic hydrocarbons (PAHs) in surface soil and groundwater of Rawalpindi, Pakistan显示文摘 | Beenish Saba Imran Hashmi Muhammad Ali Awan Habib Nasir Sher Jamal Khan | 2012 | 2012 (1-3)2012,,1: | 1 |
| 8 | Distribu tion, toxicity level, and concentration of polycyclic aromatic hy drocarbons (PAHs) in surface soil and groundwater of Rawal- pindi, Pakistan 显示文摘 | Beenish Saba Imran Hashmi Muhammad All Awan | 2012 | Desalination and Water Treatment2012,49,13: | 1 |
| 9 | CO oxidation on MXene(Mo_(2)CS_(2)) supported single-atom catalyst: A termolecular Eley-Rideal mechanism显示文摘Finding transition metal catalysts for effective catalytic conversion of CO to CO_(2)has attracted much attention.MXene as a new 2D layered material of early transition metal carbides,nitrides,and carbo-nitrides is a robust support for achoring metal atoms.In this study,the electronic structure,geometries,thermodynamic stability,and catalytic activity of MXene (Mo_(2)CS_(2)) supported single noble metal atoms (NM=Ru,Rh,Pd,Ir,Pt and Au) have been systematically examined using first-principles calculations and ab initio molecular dynamic (AIMD) simulations.First,AIMD simulations and phonon spectra demonstrate the dynamic and thermal stabilities of Mo_(2)CS_(2)monolayer.Three likely reaction pathways,LangmuirHinshelwood (LH),Eley-Rideal (ER),and Termolecular Eley–Rideal (TER) for CO oxidation on the Ru1-and Ir_(1)@Mo_(2)CS_(2)SACs,have been studied in detail.It is found that CO oxidation mainly proceeds via the TER mechanism under mild reaction conditions.The corresponding rate-determining steps are the dissociation of the intermediate (OCO-Ru_(1)-OCO) and formation of OCO-Ir_(1)-OCO intermediate.The downshift d-band center of Ru1-and Ir_(1)@Mo_(2)CS_(2)help to enhance activity and improve catalytst stability.Moreover,a microkinetic study predicts a maximum CO oxidation rate of 4.01×10^(2)s^(-1)and 4.15×10^(3)s^(-1)(298.15K) following the TER pathway for the Ru_(1)-and Ir_(1)@Mo_(2)CS_(2)catalysts,respectively.This work provides guideline for fabricating and designing highly efficient SACs with superb catalyts using MXene materials. | Shamraiz Hussain Talib Zhansheng Lu Beenish Bashir Sajjad Hussain Khalil Ahmad Salahuddin Khan Sajjad Haider Zongxian Yang Kersti Hermansson Jun Li | 2023 | Chinese Chemical Letters2023,34,2: | 0 |
| 10 | Pineapple SWEET10 is a glucose transporter显示文摘SWEET transporters are a unique class of sugar transporters that play vital roles in various developmental and physiological processes in plants.While the functions of SWEETs have been well established in model plants such as Arabidopsis,their functions in economically important fruit crops like pineapple have not been well studied.Here we aimed to investigate the substrate specificity of pineapple SWEETs by comparing the protein sequences of known glucose and sucrose transporters in Arabidopsis with those in pineapple.Our genome-wide approach and 3D structure comparison showed that the Arabidopsis SWEET8 homolog in pineapple,AcSWEET10,shares similar sequences and protein properties responsible for glucose transport.To determine the functional conservation of AcSWEET10,we tested its ability to complement glucose transport mutants in yeast and analyzed its expression in stamens and impact on the microspore phenotype and seed set in transgenic Arabidopsis.The results showed that AcSWEET10 is functionally equivalent to AtSWEET8 and plays a critical role in regulating microspore formation through the regulation of the Callose synthase5(CalS5),which highlights the importance of SWEET transporters in pineapple.This information could have important implications for improving fruit crop yield and quality by manipulating SWEET transporter activity. | Beenish Fakher M.Arif Ashraf Lulu Wang Xiaomei Wang Ping Zheng Mohammad Aslam Yuan Qin | 2023 | Horticulture Research2023,10,10: | 0 |
| 11 | Identification,Isolation and Characterization of GaCyPI Gene in Gossypium arboreum under Cotton Leaf Curl Virus Disease Stress显示文摘Pakistan is facing the threat of Cotton Leaf Curl Virus(CLCuV)which is transmitted through whitefly to cotton crop.Molecular mechanism of leaf epicuticular wax protects the plants from different pathogens including insect attack and disease transmission.Objective of current study is the isolation and characterization of a wax related gene GaCyPI from Gossypium arboreum under CLCuV infection.A fragment of 475 bp was isolated from the total RNA and 3’and 5’RACE-PCR products were arranged by overlapping the extended sequences at both the ends.Deduced protein sequence of GaCyPI showed homology with Cyclophilin cis-trans isomerase gene of Gossypium ramondii and Gossypium barbadanse.Multiple sequence alignment also revealed homology among the coding sequences of same gene.GaCyPI protein comprised of 173 amino acids and ORF finder revealed the 69 bases upstream at 5’while 350 bp at 3’UTR.InterProScan revealed that it belongs to Cyclophilin-type peptidyl prolyl cis/trans isomerase(PPIase)family.Active sites are visible at specific amino acid positions and 3D structure was stable in Ramachandran plot.Prosa server showed protein residues have average 3D-1D score>=0.2 and Z-Score was−6.74.Phylogenetic analysis revealed that G.raimondii is the closest species that shares the same sequence.Hence,GaCyPI has strong role in plants’epicuticular wax and its genetic transformation may protect the cotton from whitefly which transmits CLCuV. | Zunaira Sher Muhammad Umair Majid Sameera Hassan Fatima Batool Beenish Aftab Bushra Rashid | 2021 | Phyton-International Journal of Experimental Botany2021,90,6: | 0 |
| 12 | Pakistan and the BRICS Plus in the New Era:A Perspective of Neo-Functionalism显示文摘China proposed the idea of‘BRICS Plus’in 2017.However,this hint exasperated India owing to its diverse political and strategic preferences.Conspicuously,the reason for India’s disapproval relates to a probable role for Pakistan through the BRICS plus.Particularly,in the backdrop is China’s progress on regional integration through the Belt and Road Initiative(BRI)and the significance extended to the China Pakistan Economic Corridor(CPEC).In fact,inimical impulses for Pakistan were also felt when India attempted to label Pakistan as a country‘promoting state-sponsored terrorism’through a BRICS summit held in Goa in 2016;the move was later vetoed both by China and Russia.Meanwhile,India’s bilateral relations with China also lacked synergy,which sometimes impact their interaction within the BRICS framework.If viewed through the Neo-Functionalism framework and its concept of‘spill-over,’BRICS plus can reinforce incentives of cooperation in various sectors within a larger group of countries.Interest groups will begin to flourish at a regional level and domestically these groups will lobby their governments to further integrate.This will be overall critical for BRICS in order to steadily engage the world order as a multilateral forum.The question is,will India let go of bilateralism and accept the role of regional countries,particularly Pakistan?This article intends to explore the very concept of the transregional organisation of BRICS and the impact of the nature of relations between India and China.It also illustrates how states in the region,specifically Pakistan,have an intrinsic potential to complement the transregional agenda of BRICS and BRICS plus,particularly through its strategic geographic location and CPEC.For the persistent rise of BRICS,members will have to let go of bilateralism and allow the countries on the periphery to play their role. | Beenish Sultan Amna Mehmood | 2020 | Asian Journal of Middle Eastern and Islamic Studies2020,14,3: | 0 |
| 13 | Assessment of Biochemical and Antioxidative Status in Patients Suffering from Dengue Fever显示文摘A multi-centred study was designed to collect dengue epidemiologic data from government and registered private hospitals/clinics and maintained archive of frozen specimens in bio-bank to be used for future dengue epidemic control program, and assess the epidemiology of dengue fever(DF) by evaluating biochemical and oxidative status of patients. ELISA Ig M antibodies test was done to confirm DF. From August 2010 to December 2011, 101 confirmed blood samples of DF patients referred to pathology lab of Jinnah Hospital Lahore were subjected to the epidemiologic assessment by evaluating the biochemical and physiological indices and alterations of circulating antioxidants. Clinical features of DF patients and effect of fever on blood components and serum proteins of liver were recorded. The hospital stay in DF, dengue hemorrhagic fever(DHF) and dengue shock syndrome(DSS) showed significant difference. Significant increases in serum alanine amino transferase(ALT)(P=0.000), aspartate amino transferase(AST)(P=0.000), alkaline phosphatase(ALP)(P=0.000), malondialdehyde(MDA) along with significant decreases in total protein(TP)(P=0.000), reduced glutathione(GSH)(P=0.000), superoxide dismutase(SOD), catalase(CAT)(P=0.000), and sialic acid contents(P=0.016) were observed. A positive correlation existed between bound sialic acid levels, liver enzymes and circulating antioxidants(r=0.656, P=0.016). In the present study, alterations of circulating antioxidants in DF suggest that DF might be a metabolic response to an acute, self-limiting tropical viral infection, and a consequence of the viral inflammatory process. | Mahmood Rasool Arif Malik Khalid Mahmud Khan Muhammad Saeed Qureshi Beenish Shabbir Sara Zahid Muhammad Asif Abdul Manan Sana Rashid Saima Rubab Khan Hafiz Muhammad Arsalan Rabail Alam Mahwish Arooj Mahmood Husain Qazi Adeel Gulzar Ahmed Chaudhary Adel Mohammed Abuzenadah Mohammed Hussain Al-Qahtani Sajjad Karim | 2015 | Journal of Huazhong University of Science and Technology(Medical Sciences)2015,35,3: | 0 |
| 14 | Determination of quality of life in patients with chronic renal disease undergoing hemodialysis;a tertiary care experience显示文摘Objective: Our objective is to determine the Quality of Life (QoL) in chronic renal disease patients, to evaluate the pros and cons of dialysis in improving the QoL and to suggest an improved system of healthcare services provided to the patients. Introduction: Chronic kidney disease (CKD), also known as chronic renal disease, is a progressive loss in renal function over a period of months or years. In medicine, Dialysis is a process for removing waste and excess water from the blood, and is used primarily as an artificial replacement for lost kidney function in people with renal failure. Chronic renal disease has many complications which can decrease the QoL. Material and methods: A prospective case control study was conducted on 40 patients admitted to urology department of Mayo Hospital, Lahore for hemodylasis. Data was collected on a preformed questionnaire of WHO about QoL. Some demographic variables like age, education and income of the patient were added to the standard WHO QoL questionnaire. Results: WHO QoL questionnaire for both case and control groups had a significant p-value in four domains including overall QoL (p = 0.001), physical health (p = 0.001), psychological health (p = 0.001) and environmental health (p = 0.001). Conclusion: CKD treatment and in particular dialysis can decrease the QoL due to multiple effects. The major aspects of life affected in an individual undergoing dialysis are physical health, psychological health and environmental health. | Muhammad Tayyab Shera Syeda Beenish Bareeqa Syed Ijlal Ahmed Syeda Sana Samar Muhammad Mishkat Junaid Farasatullah khan | 2018 | Advanced Emergency Medicine2018,7,1: | 0 |
| 15 | Recent advances in titanium carbide MXene-based nanotextures with influential effect of synthesis parameters for solar CO_(2)reduction and H_(2)production:A critical review显示文摘Photocatalytic solar to energy conversion is considered an attractive approach for overcoming energy crises and environmental concerns.Recently,titanium carbide(Ti_(3)C_(2))MXenes have been recognized as promising cocatalysts based on their metallic conductivity,excessive active reaction sites,and enlarged surface area.The current review focuses on the properties and applications of Ti_(3)C_(2)MXenes useful in the field of photocatalysis.More specifically,surface modification of Ti_(3)C_(2)MXenes by varying synthesis parameters to get pure materials and also composites with the role of functional groups towards solar energy conversion applications is highlighted in this review.The effect of etching and oxidizing pathways to get an efficient cocatalyst has been discussed in detail.Considering the significant effect of parameters,optimum synthesis conditions such as etchant type,concentration,time and type of intercalant in both the Ti_(3)C_(2)synthesis approaches for improved photoactivity are discussed.Additionally,the surface modification of Ti_(3)C_(2)through oxidation for TiO2growth on its surface is deliberated with a detailed discussion on etchant type,concentration,etching time,and environmental factors.The optimum oxidation condition,including temperature,time,and environment for thermal treatment of Ti_(3)C_(2),were also included.Lastly,the review summarizes the conclusion and future perspectives for solar energy conversion applications. | Muhammad Tahir Azmat Ali Khan Sehar Tasleem Rehan Mansoor Areen Sherryna Beenish Tahir | 2023 | Journal of Energy Chemistry2023,,1: | 0 |
| 16 | China’s Role in BRICS&Relevance to GCC-China Relations:Complementarities&Conflicting Interests显示文摘BRICS is indeed viewed as one of the manifestations of‘Rise of the Rest’as against the West.In this milieu,China remains the main vehicle of this change in global transformations.Concurrently,GCC was seen broadly as a consortium of the era when the West required venturing with the oil producing countries.Nonetheless,there is potential for improvising connectivity between the GCC and the BRICS in the backdrop of complementarities and dealing with differences.This is true because,on one hand,BRICS is rapidly gaining a central control in international development and cooperation.While on the other hand,GCC countries remain the focal point of the world in terms of energy supplies.Their amalgam can further strengthen the place these blocs enjoy in the globe at large.Furthermore,with the‘Dawn of the Asian Century’,China is flexing its muscles as an economic giant quite aptly.Since the formulation of its policy of‘opening up’to the world,China has pursued a global agenda of connectivity and growth.Consequently,this rapid development is in consonance with unrestricted energy supply.This is where the GCC countries,especially Saudi Arabia as a major oil exporting country to China,play an important part.In fact,the very rise of BRICS coincides with a radical change in its relations with other countries,specifically with the GCC.For instance,China has succeeded in displacing traditional economic powers,such as Japan,the EU and the US,from the list of the GCC’s largest trading partners over the past five years.China has also been successful in completing joint strategic agreements,demonstrated most recently by the Chinese-Kuwaiti joint investment of$9 billion(Dh33.05 billion)in petrochemicals and oil products.In this regard,this article aims at answering questions like,can this makeup be interpreted as a more strengthened China-GCC relations?What are the complementarities of both China and the GCC in the realm of political,social,economic and security affairs?And are there any conflicting interests? | Beenish SULTAN | 2016 | Asian Journal of Middle Eastern and Islamic Studies2016,10,2: | 0 |