1,032 research outputs found
Myrmecaelurus ghoshi Iqbal & Yousuf 1997
No full textMyrmecaelurus ghoshi Iqbal & Yousuf, 1997 * Myrmecaelurus ghoshi Iqbal & Yousuf, 1997: 135. Type locality: Pakistan (Punjab: Pakpattan). Distribution: Pakistan: Punjab prov., Sahiwal div., Pakpattan dist. (Iqbal & Yousuf 1997; Stange 2004). Myrmecaelurus implexus (Walker, 1853) Myrmeleon implexus Walker, 1853: 376. Type locality: India. Distribution: Pakistan: Punjab prov., Multan div., Khanewal dist. (Iqbal & Yousuf 1991b, 1997; Stange 2004),— India (Oswald 2018).Published as part of Hassan, Muhammad Asghar, Oswald, John D., Zia, Ahmed & Liu, Xingyue, 2019, Neuropterida (Insecta: Megaloptera, Raphidioptera, Neuroptera) of Pakistan: a catalogue and faunistic review, pp. 497-541 in Zootaxa 4686 (4) on page 519, DOI: 10.11646/zootaxa.4686.4.3, http://zenodo.org/record/349652
Modeling and Characterization of Metal/SiC Interface for Power Device Application
Full text linkSilicon carbide is a wide band-gap semiconductor widely considered
to be an excellent material for the fabrication of power devices
able to operate in extreme environmental conditions. Its superior
properties such as wide energy bandgap, high hardness, chemical
inertness, high electrical field breakdown strength and high thermal
conductivity enable electronic devices, based on it, to operate at
high temperatures, high voltages and high frequencies and make it
an attractive semiconducting material for the power electronics industry.
Since 1999 a number of electronic devices based on silicon
carbide are commercially available such as Schottky barrier diodes
with voltage rating of 300 - 1700 V (as of 2011) which often show
non-ideal electrical behavior.
Non-ideal electrical behavior is manifested in the abnormal current-voltage characteristics and greater than unity ideality factors.
Various theories exist as to the origin of these non-idealities some attribute
them to different conduction mechanisms such as generation-recombination
and edge-related currents and others to the inhomogeneous
Schottky barrier. We have considered the approach,
taken by Tung, which can explain all the non-ideal behaviors with
thermionic emission theory alone by assuming the Schottky barrier
height to be inhomogeneous. Inhomogeneous Schottky barrier implies
spatially varying isolated low barrier height regions existing
alongside a homogeneous high Schottky barrier. These regions are
supposed to interact, in case of being situated together, resulting in
the region with low barrier height to be pinched-off. If the pinch-off
occurs the low barrier height region (or patch depending on the
shape) has a Schottky barrier height equal to the 'saddle point potential'
in front of that patch or low barrier region. Whole Schottky
barrier is assumed to be composed of numerous such low barrier
height patches. These patches are considered to be embedded into
the high background Schottky barrier and define the overall current
transport through the Schottky barrier diode. A similar model is
the parallel conduction model presented by D. Defives et al. which
instead of considering the Schottky barrier to be composed of various
small patches, divides the Schottky barrier into two major parts
each with different Schottky barrier height and both existing simultaneously
within one Schottky barrier diode. Though accurate to
some extent, this model considers the two Schottky barrier heights
to be electrically independent of each other; which is not true in all situations. After applying Tung's theoretical model it was possible
to extract nearly correct value of Richardson constant for the Schottky
diodes with titanium and molybdenum Schottky contacts on 4H
silicon carbide. It was also possible to fit the experimental data correctly
with Tung's theoretical model. Note: The diodes used in this
research work were fabricated during a research project involving
Vishay and Politecnico di Torino
Analysis of a Model for Generating Weakly Scale-free Networks
No full textIt is commonly believed that real networks are scale-free and fraction of
nodes with degree satisfies the power law . Preferential attachment is the mechanism that
has been considered responsible for such organization of these networks. In
many real networks, degree distribution before the varies very slowly
to the extent of being uniform as compared with the degree distribution for . In this paper, we proposed a model that describe this particular
degree distribution for the whole range of . We adopt a two step approach.
In the first step, at every time stamp we add a new node to the network and
attach it with an existing node using preferential attachment method. In the
second step, we add edges between existing pairs of nodes with the node
selection based on the uniform probability distribution. Our approach generates
weakly scale-free networks that closely follow the degree distribution of
real-world networks. We perform comprehensive mathematical analysis of the
model in the discrete domain and compare the degree distribution generated by
these models with that of real-world networks
AN INTRODUCTION AND SERVICES OF ALLAMA MUHAMMAD IBN YOUSUF KERMANI :علامہ محمد بن یوسف کرمانی کا تعارف و خدمات
No full textABSTRACT
Allama Muhammad Ibn Yousuf Kermani was a preeminent scholar and commentator of his era. He was born in 717 A.H. Due to his early life spent in Kerman, is often referred to as "Kermani and bestowed with the titles "Shams al-Ulama" and "Shams al-Aimma." Kermani." He acquired knowledge from renowned scholars of his time. For many decades, he resided near the Kaaba and authored "Al-Kawakib al-Durrari fi Sharah Sahih al-Bukhari," a famous commentary stemming from the Kermani tradition. The city of Kerman has held importance in the history of Iran. This city is famous for its academic, historical and Islamic significance. It was conquered in the reign of Khilafat-e-Rashida Umar Ibn-Alkhatab. Kerman is the second largest province of Iran. Allama kermani has gained knowledge from scholars like Allama Idd al-Din Abdul-Rehman Ibn-Ahmad, known as Allamai Aiji and Muhammad Ibn Abi-Alqasim and Ali Ibn-yousuf. He have high-ranking scholars like Yahya Ibn Muhammad, Asad Ibn Muhammad and Qadi Muhib Al-din Baghdad among his students. He has written explanations for several books. His life was dedicated to the advancement of knowledge
ARABIC-METAPHOR AND METONYMY EXAMPLES IN SURAH YOUSUF
No full textPraise be to Allah, and prayer be upon the holiest Prophet and messenger of Allah.Sūrat Yūsuf (Arabic: يوسف) is the 12th surah (chapter) of the Quran. It is said to have been revealed in a single sitting, being unique in this respect. The text narrates the story of Yusuf while other surahs tend to jump between topics, this surah is special in sticking to its central theme throughout, telling a coherent story in chronological order. The Qur’an, which is a reflection of the magnificence and glory of Allah and is an eternal and everlasting miracle in itself, presents clear evidence and accurately foretells events. As a witness to these events, it presents true historical facts backed by strong logic and penetrating insight.It is a matter of fact that the Holy Quran has discussed all kinds of sciences of rhetoric and eloquence as we see the Arabic grammar is alive due to the Holy Quran. Such case is with the sciences of rhetoric. They exist and really appear in all the verses of the Holy Quran. This research paper is about the examples of Metaphor and Metonymy in Surah Yousuf. Here we have first of all given a brief introduction of the Surah Yousuf. Following the literal and idiomatic meaning of Metaphor and Metonymy, we have explained Metaphor and Metonymy with examples from Surah Yousuf. There are actually three main types of Metaphor and two Metonymy found in the mentioned book, namely
The Novels Of Syed Muhammad Ashraf and Ecological Discourse
No full textEcocriticism is geo-centered philosophy which examines environmental changes and its effects on literature. The novel gives special place to environment in its vast canvas. Syed Muhammad Ashraf is considered among the great fiction writers of Urdu. The setting of his novels is mostly rural. In them, the presentation of the environment and its related elements are seen indirectly. In his novels there is an unconscious deep connection with his surroundings. Animals and birds form an integral part of his fictions. In his fiction, flora and fauna play an important role in the development of the story. Natural environment and environmental elements are unique features of the fiction of Syed Muhammad Ashraf. </span
The Novels Of Syed Muhammad Ashraf and Ecological Discourse
No full textEcocriticism is geo-centered philosophy which examines environmental changes and its effects on literature. The novel gives special place to environment in its vast canvas. Syed Muhammad Ashraf is considered among the great fiction writers of Urdu. The setting of his novels is mostly rural. In them, the presentation of the environment and its related elements are seen indirectly. In his novels there is an unconscious deep connection with his surroundings. Animals and birds form an integral part of his fictions. In his fiction, flora and fauna play an important role in the development of the story. Natural environment and environmental elements are unique features of the fiction of Syed Muhammad Ashraf. </span
Resolving coreference and security issues of linked data by focusing on OWL:SameAs: a method for similarity matching score on linked data
No full textIn Linked Data, OWL: sameAs predicate is used for linking different datasets. However, there are reservations about its use and its role in linking data. In linking different datasets, OWL: sameAs can lead to violation of the strict identity semantics of this predicate, because it is symmetric and transitive, meaning that anyone can link their data with your dataset, from anywhere. Consequently, the growth of the sameAs network raises concerns as to how accurate different datasets will be in the future. Therefore, there is a need for more sophisticated applications and systems built upon different published datasets that verify and optimize the accuracy of the Linked Datasets. To achieve that goal, we purpose a method that provides a similarity-based numeric identification score, which reviews different constraints and measuring metrics, and verifies the accuracy of the use of sameAs in the selected datasets. The system utilizes different matching algorithms on datasets comprising of three features, URI data management, statistical data and similarity matching score. The functionalities developed in this system were compared with its closest equivalents. The results obtained from the system indicate that not all claimed subjects linked via OWL: sameAs across different entities are simila
Characterization of the carbonic anhydrase gene family and other key osmoregulatory genes in Australian freshwater crayfish (genus Cherax)
No full textCherax quadricarinatus (Redclaw), C. destructor (Yabby) and C. cainii (Marron) are a group of economically important freshwater crayfish and have been developed for aquaculture production in many countries. As crayfish are farmed in a wide range of culture conditions, optimisation of water quality parameters, are crucial for their maximum growth performance. Previous reports have shown that fluctuations in water quality can negatively impact on growth of crayfish. Therefore, this project aims to identify and characterize the major genes that enable freshwater crayfish to persist in different water chemistries and evaluate their patterns of expression under different water parameters. Overall, this project found a number of candidate genes in all three species and determined that water chemistry had a strong influence on the expression of candidate genes. This information is important in the optimization of water quality parameters in freshwater crayfish aquaculture production
sj-docx-1-pie-10.1177_09544089221148294 - Supplemental material for Exploration of the dynamics of non-Newtonian Casson fluid subject to viscous dissipation and Joule heating between parallel walls due to buoyancy forces and pressure
No full textSupplemental material, sj-docx-1-pie-10.1177_09544089221148294 for Exploration of the dynamics
of non-Newtonian Casson fluid subject to viscous dissipation and Joule heating between parallel walls due to buoyancy forces and pressure by Zaheer Abbas, Muhammad Yousuf Rafiq, Hina Asghar and Sabeeh Khaliq in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
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