العدد الحالي
مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا
مجلد 1 عدد 1 (2023)
2023-01-31
10 مقال
المجلد الأول - العدد الأول في مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا
المقالات
10 مقالات
كيفية الاقتباس
Nagi Al-shaibany (المؤلف) (2023). A Model for Enhancing the Information Security Management Systems in Yemen Banks. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.14
Nagi Al-shaibany (المؤلف). “A Model for Enhancing the Information Security Management Systems in Yemen Banks.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.14. Accessed 27 أكتوبر. 2026.
Nagi Al-shaibany (المؤلف). 2023. “A Model for Enhancing the Information Security Management Systems in Yemen Banks.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.14
Nagi Al-shaibany (المؤلف) (2023) ‘A Model for Enhancing the Information Security Management Systems in Yemen Banks’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.14
@article{jast2023_art14,
author = {Nagi Al-shaibany (المؤلف)},
title = {A Model for Enhancing the Information Security Management Systems in Yemen Banks},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.14},
url = {https://doi.org/10.59628/jast.v1i1.14},}
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التواصل مع المؤلفين
A Model for Enhancing the Information Security Management Systems in Yemen Banks
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Antioxidant activity, total phenol contents, and antimacrobial activity of two Yemeni medicinal plants belongs to Euphorbiaceae family(Jatropha curcas and Euphorbia Cactus Ehrenb
بحث مؤتمر المؤتمر العلمي الدولي الثالث للطاقة المتجددة والمياه والاستدامة البيئية
Faten Hameed Thamer (المؤلف)
2023-01-31
الملخص
نبات جاتروفا كركاساو مايسمى في اليمن يطروفة القحطة و ونبات Euphorbia Cactus Ehrenb مايعرف محليا بالعمق نباتات تنتمي إلى عائلة Euphorbiaceae تستخدم لعلاج الالتهابات المختلفة في الطب الشعبي التقليدي. تم تحليل النشاط المضاد للأكسدةباستخدام طريقتي FBRC وFRAP ومحتوى الفينول الكلي (TPCs) لمادة اللاتكس لهذين النباتين وفحص تأثيره المضاد للميكروبات. أظهر كلا النباتين نشاطًا عاليًا لمضادات الأكسدة ومحتويات عالية من الفينول. لوحظ وجود علاقة إيجابية بين نشاط مضادات الأكسدة والفينول الكلي. أظهر نبات يطروفة القحطة ( الجاتروفا كركاس) تثبيطًا كبيرًا للكائنات الحية الدقيقة للاختبار. ونتيجة لذلك فهذة النبتتين يمكن استخدامها في تحضير مستحضرات صيدلانية جديدة لها فاعلية كبيرة ويمكن استخدامها بدلا عن المساحضرات الكيميائية.
الكلمات المفتاحية
Jatropha curcas
Euphorbia Cactus Ehrenb
Antioxidant activity
total phenol contents
antimicrobial
كيفية الاقتباس
Faten Hameed Thamer (المؤلف) (2023). Antioxidant activity, total phenol contents, and antimacrobial activity of two Yemeni medicinal plants belongs to Euphorbiaceae family(Jatropha curcas and Euphorbia Cactus Ehrenb. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.188
Faten Hameed Thamer (المؤلف). “Antioxidant activity, total phenol contents, and antimacrobial activity of two Yemeni medicinal plants belongs to Euphorbiaceae family(Jatropha curcas and Euphorbia Cactus Ehrenb.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.188. Accessed 27 أكتوبر. 2026.
Faten Hameed Thamer (المؤلف). 2023. “Antioxidant activity, total phenol contents, and antimacrobial activity of two Yemeni medicinal plants belongs to Euphorbiaceae family(Jatropha curcas and Euphorbia Cactus Ehrenb.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.188
Faten Hameed Thamer (المؤلف) (2023) ‘Antioxidant activity, total phenol contents, and antimacrobial activity of two Yemeni medicinal plants belongs to Euphorbiaceae family(Jatropha curcas and Euphorbia Cactus Ehrenb’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.188
@article{jast2023_art188,
author = {Faten Hameed Thamer (المؤلف)},
title = {Antioxidant activity, total phenol contents, and antimacrobial activity of two Yemeni medicinal plants belongs to Euphorbiaceae family(Jatropha curcas and Euphorbia Cactus Ehrenb},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.188},
url = {https://doi.org/10.59628/jast.v1i1.188},}
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التواصل مع المؤلفين
Antioxidant activity, total phenol contents, and antimacrobial activity of two Yemeni medicinal plants belongs to Euphorbiaceae family(Jatropha curcas and Euphorbia Cactus Ehrenb
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Development and validation of a new spectrophotometric method for simultaneous determination of spiramycin and metronidazole in tablet pharmaceutical dosage forms using chemometrics technique in comparison with HPLC
بحث مؤتمر المؤتمر العلمي الدولي الثالث للطاقة المتجددة والمياه والاستدامة البيئية
Maher almaqtari، Najat Al-Odaini، Fares Alarbagi، Bushra Alattab، Hussein Al-Maydama (المؤلف)
2023-01-31
الملخص
A new, easy, fast, and cost-effective simultaneous spectrophotometric method for determining the combined concentration of spiramycin and metronidazole in tablet pharmaceutical formulations was developed and proposed. The suggested method was validated using two chemometric techniques, namely partial least square regression (PLS) and principal component regression (PCR). The significance of the proposed method is that pretreatment or separation steps are not required. Various drug concentrations and instrumental spectra of 25 mixed solutions of spiramycin and metronidazole were used for model design and validation. The UV analysis of the prepared mixtures was recorded with respect to a selected solvent blank in the wavelength range of 200–375 nm. The digitized absorbance was sampled at 0.2 nm intervals. The R2 values of 1 and 0.9998 assigned for the PLS of spiramycin and metronidazole, and those of 0.9991 and 0.9998 for the PCR of spiramycin and metronidazole, respectively, exhibited greater prediction efficiencies. The results were statistically compared to those of the HPLC reference method. The statistical comparison between the recommended (PLS and PCR) and reference HPLC method did not find any appreciable variations in accuracy or precision. The suggested approach is simple, effective, and trustworthy enough to be employed as an alternative analytical method for quality control of drug analysis in the pharmaceutical industry.
الكلمات المفتاحية
Spiramycin
Metronidazole
Spectrophotometric method
Chemometrics technique
Validation
كيفية الاقتباس
Maher almaqtari، Najat Al-Odaini، Fares Alarbagi، Bushra Alattab، Hussein Al-Maydama (المؤلف) (2023). Development and validation of a new spectrophotometric method for simultaneous determination of spiramycin and metronidazole in tablet pharmaceutical dosage forms using chemometrics technique in comparison with HPLC. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.34
Maher almaqtari، Najat Al-Odaini، Fares Alarbagi، Bushra Alattab، Hussein Al-Maydama (المؤلف). “Development and validation of a new spectrophotometric method for simultaneous determination of spiramycin and metronidazole in tablet pharmaceutical dosage forms using chemometrics technique in comparison with HPLC.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.34. Accessed 27 أكتوبر. 2026.
Maher almaqtari، Najat Al-Odaini، Fares Alarbagi، Bushra Alattab، Hussein Al-Maydama (المؤلف). 2023. “Development and validation of a new spectrophotometric method for simultaneous determination of spiramycin and metronidazole in tablet pharmaceutical dosage forms using chemometrics technique in comparison with HPLC.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.34
Maher almaqtari، Najat Al-Odaini، Fares Alarbagi، Bushra Alattab، Hussein Al-Maydama (المؤلف) (2023) ‘Development and validation of a new spectrophotometric method for simultaneous determination of spiramycin and metronidazole in tablet pharmaceutical dosage forms using chemometrics technique in comparison with HPLC’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.34
@article{jast2023_art34,
author = {Maher almaqtari، Najat Al-Odaini، Fares Alarbagi، Bushra Alattab، Hussein Al-Maydama (المؤلف)},
title = {Development and validation of a new spectrophotometric method for simultaneous determination of spiramycin and metronidazole in tablet pharmaceutical dosage forms using chemometrics technique in comparison with HPLC},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.34},
url = {https://doi.org/10.59628/jast.v1i1.34},}
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التواصل مع المؤلفين
Development and validation of a new spectrophotometric method for simultaneous determination of spiramycin and metronidazole in tablet pharmaceutical dosage forms using chemometrics technique in comparison with HPLC
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Electrochemical properties of Au Nanoparticles
بحث مؤتمر المؤتمر العلمي الدولي الثالث للطاقة المتجددة والمياه والاستدامة البيئية
Yasmin M.S. Jamil، Hussein M.A. Al-Maydama، Mohammed A. H. Awad (المؤلف)
2023-01-31
الملخص
TiO2 NPs powder (titanium oxide nanoparticles powder) is synthesized via anodization in 0.7 M HClO4 is annealed in N2 at 450°C for 3 hrs to obtain the TiO2 NPs -N2 powder as catalyst support to which Au is loaded via photodeposition technique using tetrachloroauric acid (HAuCl4) and isopropanol as a sacrificial donor. The physicochemical characterizations of TiO2 NPs arrays powder were performed by transmission electron microscopy (TEM). The TEM image suggested that Au nanoparticles were circular and there was a tendency of agglomerations. The electro-catalytic activity of Au NPs/TiO2-NTs-N2 catalysts in ferrocyanide system , KOH ,and H2SO4 electro-oxidation was examined by cyclic voltammetry (CV) and contrasted with a financially accessible polycrystalline gold electrode. Au-TiO2 NPs-N2 powder electrode catalyst displays a strikingly high electrocatalytic activity in KOH and H2SO4 solutions. The results indicate Au NPs/TiO2-NTs-N2 catalysts as a promising support material improve the excellent electro-catalytic activity for acidic and basic oxidation.
الكلمات المفتاحية
TiO2 nanoparticles
anodization
photo deposition
gold nanoparticles
cyclic voltammetry
كيفية الاقتباس
Yasmin M.S. Jamil، Hussein M.A. Al-Maydama، Mohammed A. H. Awad (المؤلف) (2023). Electrochemical properties of Au Nanoparticles. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.153
Yasmin M.S. Jamil، Hussein M.A. Al-Maydama، Mohammed A. H. Awad (المؤلف). “Electrochemical properties of Au Nanoparticles.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.153. Accessed 27 أكتوبر. 2026.
Yasmin M.S. Jamil، Hussein M.A. Al-Maydama، Mohammed A. H. Awad (المؤلف). 2023. “Electrochemical properties of Au Nanoparticles.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.153
Yasmin M.S. Jamil، Hussein M.A. Al-Maydama، Mohammed A. H. Awad (المؤلف) (2023) ‘Electrochemical properties of Au Nanoparticles’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.153
@article{jast2023_art153,
author = {Yasmin M.S. Jamil، Hussein M.A. Al-Maydama، Mohammed A. H. Awad (المؤلف)},
title = {Electrochemical properties of Au Nanoparticles},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.153},
url = {https://doi.org/10.59628/jast.v1i1.153},}
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التواصل مع المؤلفين
Electrochemical properties of Au Nanoparticles
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Green and Chemically Prepared Zinc Sulfide Nanoparticles: A Comparative Study
بحث مؤتمر المؤتمر العلمي الدولي الثالث للطاقة المتجددة والمياه والاستدامة البيئية
A.H. Al-Hammadi، Annas Al-Sharabi، Adnan Alnehia (المؤلف)
2023-01-31
الملخص
Biosynthesis of zinc sulfide (ZnS) nanoparticles (NPs) using plant extracts is an alternative method to traditional chemical route. In this study, ZnS-NPs was synthesized via two different routes: (i) bio-based method using leaf extract of Plectranthus barbatus as a capping agent and (ii) using the chemical co-precipitation route as a capping–free method. The effect of synthesis routes on the structural, morphological, and optical properties of the prepared NPs was analyzed. The obtained ZnS-NPs was characterized using UV-Visible, FTIR, XRD, and SEM. According to XRD analysis, the average crystallite size were found to be 2.259 and 3.080 nm for chemically and bio-synthesized ZnS, respectively; while SEM revealed aggregated NPs to be counted. Additionally, the optical energy bandgap were 3.82 and 3.73 eV of the samples synthesized via chemical and green methods, respectively. The obtained results indicates that ZnS-NPs prepared via the capping–free chemical route is is more favored, in term of its morphological and optical properties, compared to the sample prepared by green method.
الكلمات المفتاحية
plectranthus barbatus
optical
ZnS
green synthesis
كيفية الاقتباس
A.H. Al-Hammadi، Annas Al-Sharabi، Adnan Alnehia (المؤلف) (2023). Green and Chemically Prepared Zinc Sulfide Nanoparticles: A Comparative Study. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.104
A.H. Al-Hammadi، Annas Al-Sharabi، Adnan Alnehia (المؤلف). “Green and Chemically Prepared Zinc Sulfide Nanoparticles: A Comparative Study.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.104. Accessed 27 أكتوبر. 2026.
A.H. Al-Hammadi، Annas Al-Sharabi، Adnan Alnehia (المؤلف). 2023. “Green and Chemically Prepared Zinc Sulfide Nanoparticles: A Comparative Study.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.104
A.H. Al-Hammadi، Annas Al-Sharabi، Adnan Alnehia (المؤلف) (2023) ‘Green and Chemically Prepared Zinc Sulfide Nanoparticles: A Comparative Study’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.104
@article{jast2023_art104,
author = {A.H. Al-Hammadi، Annas Al-Sharabi، Adnan Alnehia (المؤلف)},
title = {Green and Chemically Prepared Zinc Sulfide Nanoparticles: A Comparative Study},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.104},
url = {https://doi.org/10.59628/jast.v1i1.104},}
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التواصل مع المؤلفين
Green and Chemically Prepared Zinc Sulfide Nanoparticles: A Comparative Study
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Larvicidal Effects of New Organophosphorus Schiff base compounds against Dengue Fever Vector Aedes aegypti (Diptera; Culicidae)
بحث مؤتمر المؤتمر العلمي الدولي الثالث للطاقة المتجددة والمياه والاستدامة البيئية
Yasmin M.S. Jamil، Abbas M.Al-Azab، Fathi M.Al-Azab، Nedhal Abdulmawla Al.Selwi (المؤلف)
2023-01-31
الملخص
Mosquitoes are the most important medical insect, that transmits diseases, such as dengue fever and malaria. The biological effects of new Organophosphorus Schiff base compounds (2-Furalidenediphenylphosphate-1-phenylsemicarbazide OPSL1) and 2-methoxybenzalidenediphenylphosphate-1-phenylsemicarbazide OPSL2) against the mosquito larvae of Aedes aegypti was evaluated at different concentrations using WHO standard susceptibility test with some modifications. A laboratory bioassay was conducted to assess the larvicidal activity under controlled laboratory conditions, late 3rd or early 4th instar larvae were exposed to various concentrations – ranging from 150 ppm to 1200 ppm of the tested compounds. Mortalities were observed to increase with the increase in concentrations. The results showed that OPSL2 revealed significantly high activity against Ae. aegypti with (LC50 = 600.6 ppm) compared to the OPSL1, with LC50 = 642.9 ppm respectively. Further investigations would be required to evaluate the new active Organophosphorus compounds responsible for larvicidal efficacy in the future.
الكلمات المفتاحية
Organophosphorus Schiff base
Aedes aegypti
bioassay and dengue fever
كيفية الاقتباس
Yasmin M.S. Jamil، Abbas M.Al-Azab، Fathi M.Al-Azab، Nedhal Abdulmawla Al.Selwi (المؤلف) (2023). Larvicidal Effects of New Organophosphorus Schiff base compounds against Dengue Fever Vector Aedes aegypti (Diptera; Culicidae). مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.156
Yasmin M.S. Jamil، Abbas M.Al-Azab، Fathi M.Al-Azab، Nedhal Abdulmawla Al.Selwi (المؤلف). “Larvicidal Effects of New Organophosphorus Schiff base compounds against Dengue Fever Vector Aedes aegypti (Diptera; Culicidae).” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.156. Accessed 27 أكتوبر. 2026.
Yasmin M.S. Jamil، Abbas M.Al-Azab، Fathi M.Al-Azab، Nedhal Abdulmawla Al.Selwi (المؤلف). 2023. “Larvicidal Effects of New Organophosphorus Schiff base compounds against Dengue Fever Vector Aedes aegypti (Diptera; Culicidae).” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.156
Yasmin M.S. Jamil، Abbas M.Al-Azab، Fathi M.Al-Azab، Nedhal Abdulmawla Al.Selwi (المؤلف) (2023) ‘Larvicidal Effects of New Organophosphorus Schiff base compounds against Dengue Fever Vector Aedes aegypti (Diptera; Culicidae)’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.156
@article{jast2023_art156,
author = {Yasmin M.S. Jamil، Abbas M.Al-Azab، Fathi M.Al-Azab، Nedhal Abdulmawla Al.Selwi (المؤلف)},
title = {Larvicidal Effects of New Organophosphorus Schiff base compounds against Dengue Fever Vector Aedes aegypti (Diptera; Culicidae)},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.156},
url = {https://doi.org/10.59628/jast.v1i1.156},}
تم نسخ الاقتباس!
التواصل مع المؤلفين
Larvicidal Effects of New Organophosphorus Schiff base compounds against Dengue Fever Vector Aedes aegypti (Diptera; Culicidae)
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Modulated ion-acoustic wavepackets in a multi-component dense plasma with Thomas-Fermi distribution
بحث مؤتمر المؤتمر العلمي الدولي الثالث للطاقة المتجددة والمياه والاستدامة البيئية
Mahmood Ahmed Hassan Khaled، Mohmed Ali Shukri، Rowaida Abdullah Abdo Hassan Fare'e (المؤلف)
2023-01-31
الملخص
Modulated ion acoustic wavepackets have been investigated in a multi-component, dense plasma containing degenerate electrons/positrons, and positive/negative ions. The electrons and positrons assumed to be followed Thomas-Fermi distribution, while the ions considered to be classic. Employing a multi-scale perturbation technique, the nonlinear Schrödinger equation is derived. The criteria for the occurrence of modulational instability of the modulated ion acoustic waves are analyzed. The influences of plasma parameters on the modulational instability and its growth rate have been discussed. The envelope solitons have been discussed as well. The results showed that both modulationally unstable domain and stable domain can be found, depending on the plasma parameters. It is also found that the width of the envelop solitons are significantly modified by related plasma parameters. The present results will be useful in understanding the conditions for modulational instability of ion acoustic waves which are relevant to both space and laboratory dense plasmas.
الكلمات المفتاحية
Wavepackets
Envelop solitons
Nonlinear Schrödinger equation
Modulational instability
كيفية الاقتباس
Mahmood Ahmed Hassan Khaled، Mohmed Ali Shukri، Rowaida Abdullah Abdo Hassan Fare'e (المؤلف) (2023). Modulated ion-acoustic wavepackets in a multi-component dense plasma with Thomas-Fermi distribution. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.106
Mahmood Ahmed Hassan Khaled، Mohmed Ali Shukri، Rowaida Abdullah Abdo Hassan Fare'e (المؤلف). “Modulated ion-acoustic wavepackets in a multi-component dense plasma with Thomas-Fermi distribution.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.106. Accessed 27 أكتوبر. 2026.
Mahmood Ahmed Hassan Khaled، Mohmed Ali Shukri، Rowaida Abdullah Abdo Hassan Fare'e (المؤلف). 2023. “Modulated ion-acoustic wavepackets in a multi-component dense plasma with Thomas-Fermi distribution.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.106
Mahmood Ahmed Hassan Khaled، Mohmed Ali Shukri، Rowaida Abdullah Abdo Hassan Fare'e (المؤلف) (2023) ‘Modulated ion-acoustic wavepackets in a multi-component dense plasma with Thomas-Fermi distribution’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.106
@article{jast2023_art106,
author = {Mahmood Ahmed Hassan Khaled، Mohmed Ali Shukri، Rowaida Abdullah Abdo Hassan Fare'e (المؤلف)},
title = {Modulated ion-acoustic wavepackets in a multi-component dense plasma with Thomas-Fermi distribution},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.106},
url = {https://doi.org/10.59628/jast.v1i1.106},}
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التواصل مع المؤلفين
Modulated ion-acoustic wavepackets in a multi-component dense plasma with Thomas-Fermi distribution
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Quantum Effects on Cylindrical Dust-ion Acoustic Waves in a Semiclassical Dense Dusty Plasma
بحث مؤتمر المؤتمر العلمي الدولي الثالث للطاقة المتجددة والمياه والاستدامة البيئية
Ibrahim G. H Loqman، Mahmood Ahmed Hassan Khaled، Khauther Alkuhlani (المؤلف)
2023-01-31
الملخص
The nonlinear cylindrical dust ion acoustic waves are studied in a collisional unmagnetized dense dusty plasma medium containing inertialess degenerated electrons and positrons, fluid ions, negatively charged dust fluid and neutrals in the background, including exchange-correlation effects of both electrons and positrons. Employing the reductive perturbation method, the damped Kadomstev–Petviashvili equation is derived in the framework of two-dimensional cylindrical geometry. An approximate analytical solution of this equation is also discussed. The quantum and geometrical effects on the dust ion acoustic waves have been investigated. It is found that the dust ion acoustic wave is modified by quantum diffraction, Fermi statistics and exchange-correlation potential. Moreover, it has been found that the nebulon structures of quantum dust ions acoustic wave are formed due to the Cartesian geometry and the transverse perturbation. It is also observed that the nebulon structure is significantly modified by the exchange-correlation effects.
الكلمات المفتاحية
Dust ion acoustic waves
Nebulon structures
Dense dusty plasma
كيفية الاقتباس
Ibrahim G. H Loqman، Mahmood Ahmed Hassan Khaled، Khauther Alkuhlani (المؤلف) (2023). Quantum Effects on Cylindrical Dust-ion Acoustic Waves in a Semiclassical Dense Dusty Plasma. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.51
Ibrahim G. H Loqman، Mahmood Ahmed Hassan Khaled، Khauther Alkuhlani (المؤلف). “Quantum Effects on Cylindrical Dust-ion Acoustic Waves in a Semiclassical Dense Dusty Plasma.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.51. Accessed 27 أكتوبر. 2026.
Ibrahim G. H Loqman، Mahmood Ahmed Hassan Khaled، Khauther Alkuhlani (المؤلف). 2023. “Quantum Effects on Cylindrical Dust-ion Acoustic Waves in a Semiclassical Dense Dusty Plasma.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.51
Ibrahim G. H Loqman، Mahmood Ahmed Hassan Khaled، Khauther Alkuhlani (المؤلف) (2023) ‘Quantum Effects on Cylindrical Dust-ion Acoustic Waves in a Semiclassical Dense Dusty Plasma’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.51
@article{jast2023_art51,
author = {Ibrahim G. H Loqman، Mahmood Ahmed Hassan Khaled، Khauther Alkuhlani (المؤلف)},
title = {Quantum Effects on Cylindrical Dust-ion Acoustic Waves in a Semiclassical Dense Dusty Plasma},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.51},
url = {https://doi.org/10.59628/jast.v1i1.51},}
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التواصل مع المؤلفين
Quantum Effects on Cylindrical Dust-ion Acoustic Waves in a Semiclassical Dense Dusty Plasma
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Synthesis and Spectroscopic methods on the complexation ofCoII, NiII and CuII
بحث مؤتمر المؤتمر العلمي الدولي الثالث للطاقة المتجددة والمياه والاستدامة البيئية
Yasmin M.S Jamil (المؤلف)
2023-01-31
الملخص
The Ligand was synthesized by condensation of Indol 3-hydroxy aldehyde, Glycine and Hydrazine hydrate. The reaction of the ligand with ions (CoII, NiII and CuII ions) yielded complexes, these compounds were characterized by physical and spectroscopic techniques. The conductivity showed a non-electrolytic nature for these compounds. The elemental analysis indicated the ligand to metal ratio as 1:1 with general molecular formula M(L)(H2O)nCl2 (L=ligand; M=metal ions. IR data showed the ligand coordinated to the metal ion via azomethine nitrogen and amine of hydrazide in addition to the amine of indol ring with CuΙΙ. The spectral and magnetic studies of the complexes showed that octahedral geometry for CoΙΙ and NiΙΙ while for CuΙΙ distorted octahedral geometry. The particle size and strain of these compounds have been discussed using X-ray diffraction. The antioxidant study for ligand proved to be a good antioxidant. The compounds have been evaluated for their antimicrobial activity against various organisms.
الكلمات المفتاحية
Antibacterial
antifungal
antioxidant
hydrazide
x-ray
كيفية الاقتباس
Yasmin M.S Jamil (المؤلف) (2023). Synthesis and Spectroscopic methods on the complexation ofCoII, NiII and CuII . مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.131
Yasmin M.S Jamil (المؤلف). “ Synthesis and Spectroscopic methods on the complexation ofCoII, NiII and CuII .” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.131. Accessed 27 أكتوبر. 2026.
Yasmin M.S Jamil (المؤلف). 2023. “ Synthesis and Spectroscopic methods on the complexation ofCoII, NiII and CuII .” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.131
Yasmin M.S Jamil (المؤلف) (2023) ‘ Synthesis and Spectroscopic methods on the complexation ofCoII, NiII and CuII ’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.131
@article{jast2023_art131,
author = {Yasmin M.S Jamil (المؤلف)},
title = { Synthesis and Spectroscopic methods on the complexation ofCoII, NiII and CuII },
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.131},
url = {https://doi.org/10.59628/jast.v1i1.131},}
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التواصل مع المؤلفين
Synthesis and Spectroscopic methods on the complexation ofCoII, NiII and CuII
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Structural,Spectral and Electrical Properties of BaNi2-xZnxFe16O27 Nanoparticles Ferrites
بحث مؤتمر المؤتمر العلمي الدولي الثالث للطاقة المتجددة والمياه والاستدامة البيئية
Sadiq.H Khoreem، A. H. AL-Hammadi (المؤلف)
2023-01-31
الملخص
In the current study, w-type BNF-NPs synthesis via ceramic method.the effects of zinc ions doping on the physical properties of BNF-NPs were analyzed. The formation of BNF-NPs emphasized by XRD, FTIR, UV-Visible spectroscopy and electrical conductivity measurement. The phases structure , crysttallite size and lattice parameters wrere evaluated using XRD results. Hexagonal structure with a single phase apeares, the average grain size was found to be in Nano scale from 32 to 34 nm, while the lattice parameters increased slolly as the doping concentration of zinc ions increases. The spectra of FTIR showed main absorption bands which confirmed formation of hexagonal ferrite phase. UV-VIS analysis was also performed and found that the band gaps were in the semiconducting region and increased with increasing zinc concentration. The AC conductivity of the samples decreased with increasing zinc content and showed a dependence on the frequency and temperature. Additionally, as frequency increase the σac conductivity showed dispersion that decreased as temperature increased.
الكلمات المفتاحية
Barium ferrite
Band gaps
Fourier transforms infrared
AC conductivity
Zinc substitution
كيفية الاقتباس
Sadiq.H Khoreem، A. H. AL-Hammadi (المؤلف) (2023). Structural,Spectral and Electrical Properties of BaNi2-xZnxFe16O27 Nanoparticles Ferrites. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. DOI: https://doi.org/10.59628/jast.v1i1.100
Sadiq.H Khoreem، A. H. AL-Hammadi (المؤلف). “Structural,Spectral and Electrical Properties of BaNi2-xZnxFe16O27 Nanoparticles Ferrites.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2023, https://doi.org/10.59628/jast.v1i1.100. Accessed 27 أكتوبر. 2026.
Sadiq.H Khoreem، A. H. AL-Hammadi (المؤلف). 2023. “Structural,Spectral and Electrical Properties of BaNi2-xZnxFe16O27 Nanoparticles Ferrites.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا DOI: https://doi.org/10.59628/jast.v1i1.100
Sadiq.H Khoreem، A. H. AL-Hammadi (المؤلف) (2023) ‘Structural,Spectral and Electrical Properties of BaNi2-xZnxFe16O27 Nanoparticles Ferrites’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. doi: 10.59628/jast.v1i1.100
@article{jast2023_art100,
author = {Sadiq.H Khoreem، A. H. AL-Hammadi (المؤلف)},
title = {Structural,Spectral and Electrical Properties of BaNi2-xZnxFe16O27 Nanoparticles Ferrites},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2023}, month = {يناير}, doi = {10.59628/jast.v1i1.100},
url = {https://doi.org/10.59628/jast.v1i1.100},}
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التواصل مع المؤلفين
Structural,Spectral and Electrical Properties of BaNi2-xZnxFe16O27 Nanoparticles Ferrites
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