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Fasad (Venesection): An important regimental therapy in Unani System of Medicine
Khan, Javed ahmad,Nikhat, Shagufta,Ahmad, Naseem,Zohaib, Sharique,Parray, Shabir ahmad Cellmed Orthocellular Medicine and Pharmaceutical 2017 셀메드 (CellMed) Vol.7 No.4
Fasad i.e. venesection is an old classical method of treatment in the Unani system of medicine. Fasad is Arabic word which means "to open". In the process, complete evacuation which drains out blood and dominating humours mixed with blood from veins. Fasad is carried out when the kamiyat (quantity) of the blood is excess in the body and patient is either exposed to the risk of developing a disease or has actually developed one. In classical literature of Unani system of medicine, physicians wrote a lot about this procedure. The details of venesection is mentioned in the given paper on the basis of classical literature including history, indications, types, amount of blood to be venesected, time, person, procedure, complications and special focus has been made on the number of vessels to be venesected and their benefits with respected to disease and condition.
( Shams Tabrez Khan ),( Rizwan Wahab ),( Javed Ahmad ),( Abdulaziz A. Al-khedhairy ),( Maqsood A. Siddiqui ),( Quaiser Saquib ),( Bahy A. Ali ),( Javed Musarrat ) 한국화학공학회 2015 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.53 No.5
Envisaging the role of Co in theranautics and biomedicine it is immensely important to evaluate its antimicrobial activity. Hence in this study CoO thin nanosheets (CoO-TNs) were synthesized using wet chemical solution method at a very low refluxing temperature (90 oC) and short time (60 min). Scanning electron microscopy of the grown structure revealed microflowers (2~3 μm) composed of thin sheets petals (60~80 nm). The thickness of each individual grown sheet varies from 10~20 nm. Antimicrobial activities of CoO-TNs against two Gram positive bacteria (Micrococcus luteus, and Staphylococcus aureus), and two Gram negative bacteria (Escherichia coli and Pseudomonas aeruginosa) were determined. A 98% and 65% growth inhibition of M. luteus and S. aureus respectively, was observed with 500 μg/ml of CoO-TNs compared to 39 and 34% growth inhibition of E. coli and P. aeruginosa, respectively with the same concentration of CoO-TNs. Hence, synthesized CoO-TNs exhibited antimicrobial activity against Gram negative bacteria and an invariably higher activity against tested Gram positive bacteria. Therefore, synthesized CoO-TNs are less prone to microbial infections.
Fathi Etaher Elbakoush,Qudrat Ullah Khan,Mati Ullah,Arif Ullah,Afaq Ullah Khan,Javed Khan,Asra Iftikhar 한국전기전자재료학회 2021 Transactions on Electrical and Electronic Material Vol.22 No.6
The carbonization performance of the iron-containing carbon film resulting from polyimide was examined, Polyimide/Fe composite films were prepared from Iron (III) 2,4-pentanedionate (Fe(acac)) and poly(amic acid) (PAA) based on ODA and PMDA via a solution process in DMAC, followed by carbonization the polyimide film at a temperature range of 600–1600 °C. The organized polyimide/Fe combined fi lms were characterized using a scanning electron microscope (SEM), and thermogravimetric analysis (TGA), X-ray diffraction (XRD), and Raman. The formation of Fe particles and the synthesis of polyimide (PMDA/ODA) in the polyimide matrix is confirmed by FTIR results. Meantime, in the polyimide matrix, Fe particles were well spread which were showed by the SEM images. Kinetic parameters and thermal stability of the degradation methods for the organized polyimide/Fe combined films were examined in N 2 environment by TGA. The results have shown that the values of the calculated activation energies and thermal stability increased of the (Fe (acac)) the activation energy and loading also different with the weight-loss rate for all compositions.
Hifza Akhtar,,Shahnaz Hamid*, and,Javed Iqbal Khan 한국생약학회 2005 Natural Product Sciences Vol.11 No.4
four varieties of ground nut (Arachis hypogea) were collected from different areas of Pakistan(Tillagang, Gujar khan, Hanoi and Pipplan) from Punjab province .The oils were extracted for the evaluation oflipid .Physico-chemical values of oils were determined like refractive index, peroxide value, unsaponifiablematter, acid value, iodine value, free fatty acid and ester value. The lipid profile as indicated by GLC showed thatPalmitic acid ranged from 8.2-8.8%, proportions of oleic acid and linoleic acid varied from 57.8-59.87% and22.5-24.1% respectively. Gujar khan variety of peanut has higher % age of oil (56.79). The higher yield of oil inthis variety is not at the cost of any nutritional quality of peanut oil.
Khan, Nauman Hanif,Cheema, Taqi Ahmad,Chattha, Javed Ahmad,Park, Cheol Woo American Society of Civil Engineers 2018 Journal of energy engineering Vol.144 No.4
<P>Among various microhydropower plants, gravitational water vortex power plants are emerging because of their simple installation, reduced setup time, and minimal maintenance cost. The methodology and the selection of a suitable basin and turbine blade combinations are yet to be explained by researchers. This study attempts to investigate the parameters that affect the formation and strength of a vortex for efficient power generation using an artificially induced air-core vortex. Computational fluid dynamics based on a two-phase flow analysis of the vortex formation at different basin parameters resulted in the selection of a suitable configuration of the basin. The basin was then used in the blade analysis with different blade shapes at various load conditions. An experimental setup was also fabricated for the validation of the numerical results, in which a close agreement was observed. The proposed methodology could be used to determine the plant specifications and the blade size and shape for various flow rates and heads. The role of vortex height in determining the performance of the gravitational water vortex turbine was explored. Among the four types of blades used in the study, cross-flow blades have shown the best efficiency for the same discharge and head conditions.</P>
The Relationship between Default Risk and Asset Pricing: Empirical Evidence from Pakistan
KHAN, Usama Ehsan,IQBAL, Javed Korea Distribution Science Association 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.3
This paper examines the efficacy of the default risk factor in an emerging market context using the Fama-French five-factor model. Our aim is to test whether the Fama-French five-factor model augmented with a default risk factor improves the predictability of returns of portfolios sorted on the firm's characteristics as well as on industry. The default risk factor is constructed by estimating the probability of default using a hybrid version of dynamic panel probit and artificial neural network (ANN) to proxy default risk. This study also provides evidence on the temporal stability of risk premiums obtained using the Fama-MacBeth approach. Using a sample of 3,806 firm-year observations on non-financial listed companies of Pakistan over 2006-2015 we found that the augmented model performed better when tested across size-investment-default sorted portfolios. The investment factor contains some default-related information, but default risk is independently priced and bears a significantly positive risk premium. The risk premiums are also found temporally stable over the full sample and more recent sample period 2010-2015 as evidence by the Fama-MacBeth regressions. The finding suggests that the default risk factor is not a useless factor and due to mispricing, default risk anomaly prevails in the Pakistani equity market.
( Khan Minhaj Ahmad ),( Rifat Hamid ),( Mahboob Ahmad ),( M. Z. Abdin ),( Saleem Javed ) 한국미생물 · 생명공학회 2010 Journal of microbiology and biotechnology Vol.20 No.11
Chitinase is one of the most important mycolytic enzymes with industrial significance. This enzyme is produced by a number of organisms including bacteria. In this study, we describe the optimization of media components with increased production of chitinase for the selected bacteria, Stenotrophomonas maltophilia, isolated from soil. Different components of the defined media responsible for influencing chitinase secretion by the bacterial isolate were screened using Plackett-Burman experimental design and were further optimized by Box-Behnken factorial design of response surface methodology in liquid culture. Maximum chitinase production was predicted in medium containing 4.94 g/l chitin, 5.56 g/l maltose, 0.62 g/l yeast extract, 1.33 g/l KH2PO4, and 0.65 g/l MgSO4·7H2O using response surface plots and the point prediction tool of the DESIGN EXPERT 7.1.6 (Stat-Ease, USA) software.
Analytical and computational analysis of pressure at the nose of a 2D wedge in high speed flow
Shaikh, Javed S.,Kumar, Krishna,Pathan, Khizar A.,Khan, Sher A. Techno-Press 2022 Advances in aircraft and spacecraft science Vol.9 No.2
Supersonic projectiles like rockets, missiles, or aircraft find various applications in the field of defense. The shape of the wings is mainly designed as wedge shape or delta wings for supersonic vehicles. The study of supersonic flows over the wedges and flat plate delta wings around the large scale of incidence angle is considered in the supersonic projectile. In the present paper, the prime attention is to study the pressure at the nose of the plane wedge over the various Mach number and the various angles of incidence. Ghosh piston theory is used to obtain the pressure distribution analytically, and the results are compared with CFD analysis results. The wedge angle and Mach number are the parameters considered for the research work. The range of wedge angle is 50 to 250, and Mach number is 1.5 to 4.0 are considered for the current research work. The analytical results show excellent agreement with the CFD results. The results show that both the parameters wedge angle and Mach number are influential parameters to vary the static pressure. The static pressure increases with an increase in Mach number and wedge angle.