http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Shagufta Rashid,Fahad Nawaz,Adnan Maqsood,Shuaib Salamat,Rizwan Riaz 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.6
Active flow control techniques, such as opposing jets, hold a high potential to mitigate wave drag effects in supersonic and hypersonic regimes. In literature, most of the work is related to blunt shape bodies and their aerodynamic analysis. This article focuses on using an opposing jet in a drag reduction of a slender forebody and associated changes in flight stability characteristics. Unsteady Reynolds averaged Navier-Stokes (URANS) based solver is used for flow-field modeling. The free-stream flows at a Mach of 1.6 with the jet ejection Mach of 1 is considered. Analysis of the 3D shockwave and its displacement from the surface of the body is discussed. This analysis includes the parametric study of pressure ratios (PR = 3 to 15) with increasing angles of attack ( ∞α = 0° to 4°). The ejection of the jet displaces the shockwave from the leading edge of the slender forebody, which ultimately affects the body’s stability. The longitudinal flight stability characteristic of the body is studied in detail, with and without the jet’s ejection. This study indicates an improvement in the static stability coefficients (C ) at low angles of attack. The dynamic stability coefficients ( +C C ) are also analyzed. It is concluded that the opposing jet improves the stability characteristics of the slender forebody.
Essential Oils: Biological Activity Beyond Aromatherapy
Shagufta Kar,Pawan Gupta,Jeena Gupta 한국생약학회 2018 Natural Product Sciences Vol.24 No.3
The essential oils are fragrant products whose complex compositions are obtained from various parts of plants by dry or steam distillation. Plants with variable biological activities have been explored worldwide. The presence of a large number of phenols, terpenes and other aromatic compounds make essential oils more precise in their mode of action. Because of this, they are known to possess many biological activities like antimicrobial, antioxidant and anti-inflammatory etc. In this article, we will review the published literature summarizing the chemistry of essential oils and their important biological activities.
Parveen, Shagufta,Iqbal, Muhammad Zafar,Shafiq, Muhammad,Athar, Mohammad Techno-Press 2014 Advances in environmental research Vol.3 No.1
Effect of automobile polluted soil with five soil concentration (0 (Control), 25, 50, 75 and 100%) was observed on early seedling growth performance and biomass production of Neem (Azadirachta indica A. Juss). The treatment of 75% automobile polluted soil significantly (p < 0.05) decreased the seedling length (18.60 cm) of A. indica. The automobile polluted soil treatment with the concentration of 50% slightly increased the root length as compared to control. The automobile polluted soil treatment with the concentration of 25, 50, 75 and 100% negatively affected shoot length of A. indica as compared to control. The treatment of all concentration of automobile polluted soil progressively decreased the total leaf area A. indica as compared to control soil treatment. The automobile polluted soils also showed negative effects on biomass production of A. indica. The automobile polluted soil treatment at 25% concentration significantly (p < 0.05) affected shoot, leaves and seedling dry weight of A. indica as compared to control soil treatment. The order of relationship between production of A. indica's seedling dry weight and automobile polluted soil treatment was observed as root > shoot > leaves > total seedling.
The Role of Transverse Arch in Foot Stiffness and Its Clinical Implications
Adil Asghar,Shagufta Naaz 대한체질인류학회 2021 해부·생물인류학 (Anat Biol Anthropol) Vol.34 No.3
The human has the most evolved arched feet. Initially, a transverse arch developed in feet like the carpal arch till modern human arches evolved, which included a longitudinal and transverse arch.
Divya Chauhan,Shagufta Afreen,Shruti Mishra,Nalini Sankararamakrishnan 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.55 No.-
A novel amine functionalized Polyacrylonitrile (PAN) based electrospun nanofibers mat decorated with zinc (A/Zn/PAN) was synthesized, characterized and evaluated for the decontamination of chemical and biological contaminants. The loading capacity of the chromium (Cr (VI)) and congo red (CR) dye on A/Zn/ PAN nanofiber mat were approximately 23 and 25 mg/g, respectively. Various adsorption parameters like pH, kinetics, dose rate were ascertained by using batch adsorption experiments. Using XPS studies a suitable mechanism has been proposed for the adsorption. The nanofiber mat was found to be effective in inhibiting the growth of Escherichia coli, and Staphylococcus aureus bacterial strains.
Study of density of localized states in a-Ga x Se100-x alloysusing SCLC measurements
M. Husain,Shagufta B. Husain,M. Zulfequar,M.A. Majeed Khan 한국물리학회 2004 Current Applied Physics Vol.4 No.5
DC conductivity measurements have been made as a function of temperature and electric eld on a-GaxSe100-x (0≤x≤10)samples, in order to study the eect of the electric eld and temperature on the conduction mechanism. The present paper reports themeasurements on space charge limited conduction (SCLC) in vacuum evaporated amorphous thin lms of a-GaxSe100-x where 0≤x≤10. At high fields (~10⁴V/cm), the current could be tted to the theory of space charge limited conduction, in case ofuniform distribution of localized states in the mobility gap of these materials. The addition of Gallium (Ga) in a-GaxSe100-x results in an increase in the density of localized states and hence an increase in conductivity.
Raza, Md. Thosif,Mizan, Shagufta Korea Genome Organization 2022 Genomics & informatics Vol.20 No.3
A pandemic of respiratory disease named coronavirus disease 2019 (COVID-19) is caused by a novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It is reported prostate cancer patients are susceptible to COVID-19 infection. To understand the possible causes of prostate cancer patients' increased vulnerability and mortality from COVID-19 infection, we focused on the two most important agents, transmembrane protease serine subtype 2 (TMPRSS2) and the C-X-C motif 10 (CXCL10). When SARS-CoV-2 binds to the host cell via S protein-angiotensin-converting enzyme-2 receptor interaction, TMPRSS2 contributes in the proteolytic cleavage of the S protein, allowing the viral and cellular membranes to fuse. CXCL10 is a cytokine found in elevated level in both COVID-19 and cancer-causing cytokine storm. We discovered that TMPRSS2 and CXCL10 are overexpressed in prostate cancer and COVID-19 using the UALCAN and GEPIA2 datasets. The functional importance of TMPRSS2 and CXCL10 in prostate cancer development was then determined by analyzing the frequency of genetic changes in their amino acid sequences using the cBioPortal online portal. Finally, we used the PANTHER database to examine the pathology of the targeted genes. We observed that TMPRSS2 and CXCL10, together with their often co-expressed genes, are important in the binding activity and immune responses in prostate cancer and COVID-19 infection, respectively. Finally, we found that TMPRSS2 and CXCL10 are two putative biomarkers responsible for the increased vulnerability and fatality of prostate cancer patients to COVID-19.
Ismat Bibi,Aneela Sultan,Shagufta Kamal,Shazia Nouren,Yusra Safa,Kashif Jalani,Misbah Sultan,Sadia Atta,Fariha Rehman 한국화학공학회 2017 Korean Journal of Chemical Engineering Vol.34 No.2
The current research project has been devoted to isolating new low cost and eco-friendly phenolic compounds from fruit seeds, peels and vegetables to reduce the atmospheric pollution. Natural phenolic compounds were extracted from different fruit seeds and agriculture waste: P. armeniaca, P. persica, P. domestica and Triticum aesativum. The total phenolic content was quantified, and the maximum value (1 mL extract having 1,933 μg) was found in P. armeniaca seed extract. Phytochemical screening showed that P. armeniaca seeds contain higher amount of alkaloid, tannins, saponins and flavonoid. P. armeniaca seeds enhanced the biotransformation of reactive yellow dye up to 69.89% with maximum laccase (322.45 IU/mL) production. Biodegradation of reactive yellow was only 23.34% without natural redox mediator at sixth day of incubation. Use of P. armeniaca seed stimulators resulted in maximum laccase activity (894.4 IU/mL) with 99.5% rate of removal. UV-Vis, HPLC & FTIR analysis confirmed the transformation of parent dye into various new products. Phytotoxicity study indicated 0% germination index of Avena sativa seeds with reactive yellow, whereas 83% germination index having 100% seed germination while 83% root elongation with treated sample. Thus, the study revealed that the natural phenolic compounds could serve as high potential redox mediators for enhanced laccase-mediated decolorization of reactive yellow dye.
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.
Review on metallic nanoparticles induced toxicity on renal function and overall health of kidneys
Ammara Waris,Saima Sharif,Shagufta Naz,Farkhanda Manzoor,Farzana Rashid,Sobia Tabassum,Farrukh Jamil,Murid Hussain,Yong Jun Choi,Young-Kwon Park 대한환경공학회 2024 Environmental Engineering Research Vol.29 No.4
Recently, innovative developments have been made in the rapidly developing field of nanotechnology. However, toxicity due to long-term exposure to various types of metal-based nanoparticles, especially metal and metal oxide nanoparticles, is gradually increasing. The kidney is prone to toxin-induced impairment because it is one of the main organs for eliminating multiple potentially dangerous substances, including nanoparticles (NPs), from mammals. However, the mechanisms underlying cytotoxicity triggered by various NPs have not yet been reported. This review summarizes the various mechanisms involved in metal-based nanoparticle-induced nephrotoxicity, focusing on Reactive Oxygen Species (ROS) production, which leads to oxidative stress and apoptosis. The mechanisms by which metal-based NPs cause serious side effects in the renal system and the specific toxicity of different types of metal NPs are also summarized.