Direct spun aligned carbon nanotube web-reinforced proton exchange membranes for fuel cells

A composite membrane prepared by electrospinning SPEEK and direct spinning of CNTs is more robust than SPEEK alone and outperforms SPEEK and Nafion 212 membranes.</p

Production of biodiesel from palm oil by using calcium oxide (cao) supported on alumina beads / Nurul Aqilah Sham Shul Bahri

In this research, the main objectives of this study were to determine the effect of the amount of catalyst loadings on the yield of biodiesel Ca/AI203 catalyst without dopant and Ni/Ca/Al203 catalyst with dopant produced from palm oil. Biodiesel was produced by transesterification of palm oil with methanol catalysed by two types of alumina-supported catalysts. In the view of work, homogenous catalysts have more limitation than heterogeneous catalyst. Homogeneous catalyst has caused great impact to environment and market value. The catalysts were prepared by heating a mixture of alumina beads and calcination in the furnace at 700 °C. Transesterification reactions were carried out at 65 °C using a mixture of palm oil and methanol with various mass of catalyst. Ni/Ca/AI203 gave the highest maximum yield (12.6%) with the optimum mass of catalyst that was 4 g. Followed by Ca/AI203 (4.2%) with the mass of catalyst was 3 g. The optimum percentage FAME result at 12.6% Ni/Ca/AI203 with dopant was higher than to the optimum conversion of percentage FAME for Ca/AI203 without dopant at 4.2%. The types of fatty acid in palm oil were determined by using gas chromatographymass spectrometry (GC-MS). The fatty acid that determined was palmitic acid, myristic acid and lauric acid. The palmitic acid at retention time 11.687 min followed by 10.183 min for myristic acid and lauric acid at 8.559 min. It can be concluded the percentage of yield or FAMEs for Ni/Ca/AI203 with dopant higher than Ca/AI203 without dopant

CST-former: Transformer with Channel-Spectro-Temporal Attention for Sound Event Localization and Detection

Sound event localization and detection (SELD) is a task for the classification of sound events and the localization of direction of arrival (DoA) utilizing multichannel acoustic signals. Prior studies employ spectral and channel information as the embedding for temporal attention. However, this usage limits the deep neural network from extracting meaningful features from the spectral or spatial domains. Therefore, our investigation in this paper presents a novel framework termed the Channel-Spectro-Temporal Transformer (CST-former) that bolsters SELD performance through the independent application of attention mechanisms to distinct domains. The CST-former architecture employs distinct attention mechanisms to independently process channel, spectral, and temporal information. In addition, we propose an unfolded local embedding (ULE) technique for channel attention (CA) to generate informative embedding vectors including local spectral and temporal information. Empirical validation through experimentation on the 2022 and 2023 DCASE Challenge task3 datasets affirms the efficacy of employing attention mechanisms separated across each domain and the benefit of ULE, in enhancing SELD performance.Comment: Accepted to ICASSP 202

Potensi Bank Syariah Indonesia (BSI) dalam Upaya Peningkatan Perekonomian Nasional

The merger of three BUMN Sharia Banks namely BRI Syariah (BRIS), Mandiri Syariah Mandiri (BSM), and BNI Syariah (BNIS) which became Bank Syariah Indonesia (BSI) brought new breakthroughs and led the bank to be ranked 7th national bank based on assets. . The government has high hopes for the usefulness of the Indonesian Sharia Bank because it is a momentum that will affect public awareness of the Islamic financial industry, especially Islamic banking. However, behind the opportunities for an industry there is a challenge that must be resolved, as for the challenge is related to increasing financial literacy, how to adapt a new work culture which of course between the three previous Islamic banks has different characteristics, bank management which ensures that integration runs well without sacrificing previous quality resources, and how to create competitive financial services and be able to accommodate and facilitate financing related to MSMEs. Bank Syariah Indonesia can make the Islamic finance industry compete both regionally and internationally so that it can help develop national economy.   Abstrak: Merger yang dilakukan terhadap tiga Bank Syariah BUMN yaitu BRI Syariah (BRIS), Mandiri Syariah Mandiri (BSM), dan BNI Syariah (BNIS) yang menjadi Bank Syariah Indonesia (BSI) membawa terobosan baru dan mengantarkan bank tersebut menjadi peringkat 7 bank nasional berdasarkan aset. Pemerintah menaruh harapan besar terhadap kebermanfaatan dari Bank Syariah Indonesia karena merupakan sebuah momentum yang akan mempengaruhi kesadaran masyarakat terhadap industri keuangan syariah terutama perbankan syariah. Namun, dibalik peluang suatu industri terdapat sebuah tantangan yang harus diselesaikan, adapun tantangan tersebut ialah berkaitan dengan peningkatan literasi keuangan, bagaimana mengadaptasi budaya kerja baru yang tentu di antara ketiga bank syariah sebelumnya memiliki karakteristik yang berbeda, manajamen  bank yang memastikan bahwa integrasi berjalan baik tanpa mengorbankan Sumber Daya berkualiatas sebelumnya, dan bagaimana caranya membuat jasa keuangan yang dapat bersaing serta mampu mengakomodir dan memfasilitasi pembiayaan yang berkaitan dengan UMKM. Bank Syariah Indonesia dapat menjadikan industri keuangan syariah bersaing baik tingkat regional maupun internasional sehingga dapat membantu pembangunan perkonomian nasional.

Effect of Impurities with Internal Structure on Multiband Superconductors - Possible Enhancement of Transition Temperature -

We study inelastic (dynamical) impurity scattering effects in two-band superconductors with the same ($s_{++}$ wave) or different ($s_\pm$ wave) sign order parameters. We focus on the enhancement of the superconducting transition temperature $T_{\rm c}$ by magnetic interband scattering with the interchange of crystal-field singlet ground and multiplet excited states. Either the $s_{++}$-wave or $s_\pm$-wave state is favored by the impurity-mediated pairing, which depends on the magnetic and nonmagnetic scattering strengths derived from the hybridization of the impurity states with the conduction bands. The details are examined for the singlet-triplet configuration that is suggestive of Pr impurities in the skutterudite superconductor LaOs$_4$Sb$_{12}$.Comment: 14 pages, 5 figures, to appear in J. Phys. Soc. Jpn. Vol. 79, No. 9 (2010

[The Concept of Asabiyah According to Ibn Khaldun] Konsep Asabiyah menurut Ibnu Khaldun

The understanding of the meaning of asabiyah is often understood as a spirit of racism and oppression against other races.&nbsp; It is as if the meaning of asabiyah gives a negative connotation in Islam.&nbsp; However, the famous Islamic sociologist, Ibn Khaldun saw asabiyah in terms of its role in developing Islamic civilization throughout history.&nbsp; Therefore, this paper attempts to analyze the fact of asabiyah from a positive point of view according to Ibn Khaldun and how it influenced society in the construction of Islamic civilization. The method used in the writing is based on the method of document analysis from sources related to asabiyah.&nbsp; The results of the study found that Ibn Khaldun has stated that asabiyah should be understood from a positive point of view so that asabiyah can be used for good in the state society.&nbsp; It is a foundation for unification and unity that has strengthened political power throughout the history of Islam. Pemahaman terhadap pengertian asabiyah seringkali difahami sebagai satu semangat perkauman dan penindasan terhadap bangsa lain. Seolah-olah pengertian asabiyah memberi konotasi&nbsp; yang negatif dalam Islam.&nbsp; Namun begitu,&nbsp; ahli sosiologi Islam yang terkenal, Ibnu Khaldun melihat asabiyah dari sudut peranannya membangunkan ketamadunan Islam sepanjang sejarah. Oleh kerana itu, kertas ini cuba menganalisis hakikat asabiyah dari sudut pandang positif menurut Ibnu Khaldun dan bagaimana ia mempengaruhi masyarakat dalam pembinaan tamadun Islam. Kaedah yang digunakan dalam penulisan adalah berdasarkan metod analisis dokumen daripada sumber-sumber yang berkaitan dangan asabiyah. Hasil kajian mendapati bahawa Ibnu Khaldun telah menyatakan asabiyah perlu difahami dari sudut pandang positif sehingga asabiyah dapat digunakan ke arah kebaikan dalam masyarakat bernegara. Ia&nbsp; merupakan satu asas bagi penyatuan dan perpaduan yang mengukuhkan sesuatu kekuasaan politik sepanjang sejarah Islam

On the Origin of Llamas: Model Tree Heritage Recovery

The rapid growth of neural network models shared on the internet has made model weights an important data modality. However, this information is underutilized as the weights are uninterpretable, and publicly available models are disorganized. Inspired by Darwin's tree of life, we define the Model Tree which describes the origin of models i.e., the parent model that was used to fine-tune the target model. Similarly to the natural world, the tree structure is unknown. In this paper, we introduce the task of Model Tree Heritage Recovery (MoTHer Recovery) for discovering Model Trees in the ever-growing universe of neural networks. Our hypothesis is that model weights encode this information, the challenge is to decode the underlying tree structure given the weights. Beyond the immediate application of model authorship attribution, MoTHer recovery holds exciting long-term applications akin to indexing the internet by search engines. Practically, for each pair of models, this task requires: i) determining if they are related, and ii) establishing the direction of the relationship. We find that certain distributional properties of the weights evolve monotonically during training, which enables us to classify the relationship between two given models. MoTHer recovery reconstructs entire model hierarchies, represented by a directed tree, where a parent model gives rise to multiple child models through additional training. Our approach successfully reconstructs complex Model Trees, as well as the structure of "in-the-wild" model families such as Llama 2 and Stable Diffusion