bluuebunny/crossref_metadata_2025 huggingface dataset:
Peningkatan Strategi Promosi Pariwisata Budaya Festival Event Kuliner Tradisional di Desa Pondoknongko Kabupaten Banyuwangi Provinsi Jawa Timur
Authors: Perdana Muhamad Ari , Putra Adetiya Prananda , Rusmawan Putu Ngurah
Published: February 2023

Desa PondokNongko merupakan salah satu desa di Banyuwangi yang tengah menggencarkan kegiatan pariwisata budaya dengan festival bazar kuliner tradisionalnya dan industri ekonomi kreatif UMKM. Disini terdapat daya tarik wisata budaya yang dirintis oleh pemerintah Desa Pondoknongko bersama masyarakat daerah setempat yaitu festival pariwisata budaya berbasis kegiatan masyarakat dengan festival kuliner. Desa Pondok Nongko adalah sebuah desa di kecamatan kabat kabupaten Banyuwangi yang memiliki tiga dusun yaitu palu kuning, krajan, dan Kedawung. Potensi pariwisata budaya yang tinggi di wilayah pemeritah desa pondok nongko sudah dapat dapat dioptimalkan serta menjadi wujud nyata sebagai upaya melestarikan kebudayaan daerah yang sudah mulai ditinggalkan. Diwilayah pemdes pondok nongko dibutuhkan peranannya baik itu untuk mengelola maupun usaha pemasaran pariwisata budaya agar dapat menjadi sumber pendapatan potensial bagi masyarakat sekitar. Pariwisata budaya yang berdaya saing dan berkelanjutan bertumpu pada pemberdayaan masyarakat. Hal yang sangat menarik untuk dilakukan pendampingan mengenai pengingkatan strategi promosi melalui digital marketing serta pengoptimalan pengelolaan event sebagai upaya mewujudkan pariwisata budaya berkelanjutan di desa Pondok Nongko kabupaten Banyuwangi.
Penguatan Kelembagaan Bumdes Wartim Maslahah Melalui Pendampingan Tata Kelola Bumdes Desa Waru Timur Kabupaten Pamekasan Jawa Timur
Authors: Febrianti Salsabila Atikah , Hayati Mardiyah
Published: February 2023

Permasalahan pada kegiatan Pengabdian Kepada Masyrakat (PKM) adalah belum terbentuknya BUMDesa di Desa Waru Timur. Kegiatan pengabdian masyarakat bertujuan pada penguatan pendirian BUMDesa, serta mendaftarkan pengajuan sertifikasi badan hukum atau legalitas agar BUMDesa di Desa Waru Timur memiliki badan hukum sehingga dapat diakui secara hukum. Metode pelaksanaan pengabdian masyarakat ini dilakukan dengan memberikan pengarahan dan melakukan pendampingan dalam proses pembentukan BUMDes serta memperoleh legalitas BUMDess Berbadan Hukum. Hasil dari kegiatan Pengabdian Kepada Masyarakat (PKM) ini adalah a.) Perangkat desa dan pengurus BUMDesa memahami mekanisme pengusulan Badan Hukum sebagai faktor utama penguatan kelembagaan BUMDesa, b.) Terbentuknya BUMDesa dengan nama Wartim Maslahah, c.) Terbentuknya tim pengelola BUMDesa beserta unit usaha, dan d.) Tersusunnya Perdes. Program ini diharapkan melibatkan masyarakat secara langsung dalam pengelolaan BUMDesa agar dapat mendukung dan membantu perekonomian berbasis pemberdayaan masyarakat.
Upaya Peningkatan Taraf Hidup Petani di Desa Seba-Seba Kecamatan Walenrang Timur Kabupaten Luwu Melalui Pembagian Bibit Sayuran
Authors: Laswi Aishiyah Saputri , Sukmawaty Sukmawaty , Bungawati Bungawati , Rahmadani Ervi , Wiratman Arwan , Fakhrunnisaa Nur
Published: February 2023

Desa Seba-Seba memiliki wilayah yang sebagian besar wilayahnya merupakan lahan pertanian dan perkebunan tetapi tidak dimanfaatkan secara optimal. Kegiatan ini bertujuan untuk untuk membagikan bibit-bibit sayur, agar masyarakat dapat menanam sayuran di sekitar rumah, ladang, dan sawah mereka untuk mendukung kesediaan pangan keluarga. Penanaman sayur bertujuan agar masyarakat mempunyai alternatif penghasilan lain ketika mereka mengalami gagal panen. Kegiatan yang dilakukan menggunakan pendekatan Asset Based Community Development. Kegiatan pengabdian meliputi: 1) mengidentifikasi masalah, 2) Wawancara, 3) Membagikan bibit sayuran, dan 4) evaluasi kegiatan berupa diskusi dengan masyarakat maupun perangkat desa mengenai efektivitas kegiatan yang telah dilakukan serta tindak lanjut kegiatan. Data dikumpulkan menggunakan pengamatan langsung, wawancara, dan dokumentasi. Data kemudian dianalisis menggunakan teknik deskriptif dengan menggambarkan keadaan dan situasi yang sebenarnya. Hasil kegiatan yakni pemetaan wilayah berupa potensi yang dimiliki wilayah Seba-Seba yakni wilayah pertanian, perkebunan, serta tambak ikan. Salah satu upaya yang dilakukan yakni dengan membagikan bibit sayuran yang cocok untuk sebagian besar wilayah pertanian. Bibit sayuran yang dibagikan seperti bibit kangkung, terong, tomat serta kacang panjang dengan harapan bibit yang diberikan dapat ditanam di lahan tersebut agar dapat memenuhi kesediaan pangan keluarga dan membantu meningkatkan taraf hidup masyarakat di Desa Seba-Seba.
Manajemen Kesehatan Ternak Domba Lokal Melalui Pemberian Jamu Herbal Fermentasi dan Pengobatan dengan Bahan Alami
Authors: Anggita Arnes Widya
Published: February 2023

Kesehatan ternak merupakan salah satu kunci keberhasilan suatu usaha peternakan. Penyakit merupakan hambatan yang perlu diatasi. Melalui penerapan manajemen kesehatan ternak dapat dioptimalkan dan diharapkan dampak negatif dari penyakit ternak dapat diminimalkan. Manajemen kesehatan hewan berhubungan erat dengan usaha pencegahan infeksi dari agen-agen infeksi melalui upaya menjaga biosekuriti dengan menjaga higienitas dan sanitasi kandang, manajemen pakan yang baik, dan peningkatan daya tahan tubuh ternak melalui pemberian obat cacing dan multivitamin. Jamu ternak fermentasi dapat digunakan untuk kesehatan ternak. Pengobatan pada domba dapat dilakukan dengan bahan alami sehingga terjangkau oleh peternak. Tujuan penyuluhan ini adalah mengenalkan, mempraktekkan dan memotivasi masyarakat untuk dapat melakukan pengobatan dan pembuatan jamu ternak fermentasi dengan menggunakan bahan-bahan yang ada dilingkungan sekitar. Sasaran kegiatan adalah peternak domba lokal di Desa Gadingkulon, Kecamatan Dau Kabupaten Malang. Metode kegiatan, yaitu 1) Penyuluhan manajemen kesehatan, pakan, perkandangan, penjelasan tentang pembuatan jamu ternak fermentasi dan pengobatan dengan bahan alami; 2) Pelatihan praktek secara langsung pembuatan jamu fermentasi. Hasil kegiatan penyuluhan dan praktek pembuatana jamu herbal fermentasi yang dilaksanakan mendapat antusiasme masyarakat, karena kegiatan yang telah dilakukan sesuai kebutuhan masyarakat setempat.
Literasi Baca Tulis Al-Qur’an dengan Metode Iqra’ pada Komunitas Perempuan di Wara Timur Kota Palopo
Authors: Pajarianto Hadi , Yusuf Muhammad , Duriani Duriani , Pribadi Imam , Halim Ibrahim , Salju Salju
Published: February 2023

Al-Qur’an adalah kitab suci bagi umat Islam yang tidak hanya dijadikan sebagai bacaan semata, tetapi dimaknai dan diamalkan dalam kehidupan sehari-hari. Faktanya, mayoritas umat Islam di Indonesia tidak dapat membaca Al-Qur’an dengan baik dan benar. Tujuan pengabdian ini adalah untuk melakukan pembinaan literasi Baca Tulis Al-Qur’an pada perempuan yang berada dalam tingkat pra sejahtera di Wara Timur kota Palopo. Kegiatan pengabdian ini dilaksanakan di kota Palopo selama 5 (lima) bulan, mulai Januari-Juli 2022. Metode pelaksanaan kegiatan menggunakan pendekatan SLA (The Sustainable Livelihood Approach), yang meliputi tahap persiapan, pelaksanaan, serta evaluasi dan monitoring. Pemberdayaan masyarakat dengan metode the Sustainable Livelihood Approach (SLA). Selain itu juga diperkuat dengan metode PALS (Parcipatory Action Learning) yang menitikberatkan pada transformasi kegiatan. Hasil kegiatan melalui siklus Pretest, pembinaan, Post-test, dan refleksi dapat meraih partisipasi aktif peserta dari mitra sasaran yang terdiri dari perempuan sebesar 85% dan kenaikan kemampuan Baca Tulis Al-Qur’an yang signifkan, dan tidak ada lagi peserta yang tidak mengenal huruf Al-Qur’an.
Pendampingan Pengembangan Media Pembelajaran Matematika Berbasis Augmented Realty (AR) pada Guru Sekolah Dasar Negeri Panaragan 2, Kota Bogor
Authors: Purnamasari Ratih , Safitri Nurlinda , Sundari Fitri Siti , Novita Lina , Windiyani Tustiyana
Published: February 2023

Berdasarkan hasil wawancara dengan guru SDN Panaragan 2, Kota Bogor, diketahui matematika masih menjadi mata pelajaran yang dianggap sulit. Terbukti dengan rendahnya jumlah siswa yang mencapai KKM disetiap pembelajaran. Hal tersebut menjadi tantangan bagi guru untuk bisa menghilangkan kesan sulit, melalui penggunaan media pembelajaran yang menarik. Tujuan kegiatan pengabdian masyarakat ini adalah untuk mengenalkan Augmented Reality (AR) serta melakukan pendampingan dalam mengembangkan media pembelajaran matematika berbasis AR kepada guru-guru SDN Panaragan 2, Kota Bogor. Metode pendampingan dilakukan melalui pengenalan teknologi AR, penjelasan bagaimana membuat desain obyek sederhana menggunakan teknologi AR, serta pemberian kesempatan kepada peserta untuk mencoba membuat dengan pendampingan. Setelah pendampingan dilakukan selanjutnya diadakan evaluasi melalui angket dan penilaian terhadap keberhasilan peserta dalam pembuatan media pembelajaran matematika berbasis AR. Para peserta sangat antusias dalam mengikuti pendampingan ini, mereka mulai paham mengenai AR, dan sudah mencoba membuat media pembelajaran matematika yang sederhana dengan menggunakan AR.
Budidaya Kambing Perah Peranakan Etawa (PE) dengan Berbagai Alternatif Komposisi Ransum di Desa Sromo Kecamtan Ngantang
Authors: Cahyo Yustian Dwi
Published: February 2023

Tujuan dari progam ini adalah untuk meningkatkan pendapatan dan sumber daya manusia peternak kambing perah. Pada pelaksanaanya pelatihan tentang manajemen dan pakan kambing perah ini akan menggunakan metode pre dan post-test terhadap peserta yang akan dibina untuk dapat meningkatkan produktivitas susu kambing perah. program pelatihan pembuatan konsentrat ini sangat bermanfaat bagi peternak kambing perah yang ada di Desa Sromo Kecamatan Ngantang dari produksi 0,9 Liter perhari menjadi 1,2 Liter perhari sehingga profit peternak dapat meningkat. Kesimpulanya program pelatihan pembuatan konsentrat ini sangat bermanfaat bagi peternak kambing perah yang ada di Desa Sromo Kecamatan Ngantang sehingga produksi susu dan keuntungannya bertambah. Sumber daya peternak tentang pengetahuan manajemen, pakan dan pembibitan juga semakin bertambah sehingga dapat meningkatkan profit peternak juga.
Program Pendidikan Pemanfaatan Limbah Pertanian dan Peternakan dalam Mewujudkan Green Village di Montong Sapah, Kabupaten Lombok Tengah, NTB
Authors: Kholidi Ahmad Khaerul , Iqbal Lalu Muhammad , Faizun Adi , Masdani Masdani
Published: February 2023

Program pendidikan ini dilaksanakan di Desa Montong Sapah, Kecamatan Praya Barat Daya, Kabupaten Lombok Tengah. Berdasarkan awal mulai melakukan observasi di daerah tersebut memiliki kendala dalam pemanfaatan limbah baik itu pertanian dan pertenakan, kebiasan masyarakat saat ada limbah mereka selalu membuangnya. Program ini berkolaborasi langsung dengan mahasiswa yang sedang melaksankan KKN di Desa Montong Sapah, kkn berlangsung sekitar 3 bulan yang mulai pada bulan Juni, Juli, dan Agustus. Hasil akhir dari program ini; Pertama. Masyarakat memiliki pengetahuan tentang pengolahan limbah pertanian seperti tongkol jangung yang bisa di jadikan sebagai pakan sapi, dan kambing. Untuk limbah peternakan seperti kotoran sapi bisa di jadikan pupuk dasar untuk penanaman pohon. Kedua, masyarakat memiliki pengetahuan tentang lahan yang kering bisa di tanami bibit-bibit pohon yang cocok di tanami di lahan tersebut. Pengabdian ini dilasanakan di masyarakat pertanian dan peternakan yang manfaatnya sangat membantu dalam mensejahtrakan masyarakat. Program ini tentunya bisa diperluas kedepannya untuk mewujudkan desa yang hijau, masyarakat yang ramah lingkungan dan memberikan contoh yang baik untuk desa yang lain.
Pendampingan bagi Anggota Credit Union Prima Danarta Surabaya Usaha Dagang Menuju Terampil Pencatatan Transaksi dan Perpajakan
Authors: Wardani Rr. Puruwita , Hartanto Susanna , Wijanarko Thomas Aquinas , Wibowo Vivian Angelina Soegiharto
Published: February 2023

Usaha mikro, kecil, menengah (UMKM) merupakan salah satu penopang yang mendorong pertumbuhan perekonomian nasional secara berkesinambungan. Pentingnya peran dari UMKM inilah yang membuat masyarakat pelaku UMKM harus dapat melakukan pencatatan keuangan dengan tepat. Pencatatan keuangan yang tepat, dimulai dari pencatatan transaksi hingga penyajian laporan keuangan. Hal ini penting dilakukan karena besar pengaruhnya dalam kegiatan pengambilan keputusan dalam memperluas usahanya. Kenyataannya, pencatatan keuangan ini masih menjadi permasalahan bagi pelaku UMKM. Pelatihan pencatatan akuntansi bagi usaha dagang ini menggunakan pendekatan pos transaksi agar mudah dimengerti oleh peserta. Peserta diberikan kasus usaha dagang untuk dua periode dan diminta memasukkan ke dalam pos transaksi sampai menyajikan laporan laba rugi dan laporan posisi keuangan. Hasil dari pelatihan ini adalah 67% peserta mengerti mengenai materi yang diajarkan dengan jelas, 82% peserta menyatakan pelatihan ini sangat bermanfaat bagi usaha mereka, dan 64% peserta menyatakan dapat menerapkan hasil pelatihan pada usaha yang dimilki.
On the Results of Coffy and Moli
Authors:   Department of Mathematics, Government Science College, Chitradurga (Karnataka), India, Puranik Anand G
Published: February 2023

The primary aim of this article is Generalization leading to search of integrals of the type∫ 𝒍𝒐𝒈𝑷 𝒍𝒐𝒈𝑸 𝒅𝒙 = ∫ 𝑭𝑮 𝒏𝒅𝒙 where both P, Q are functions of x only and also verification of results by using new trend. In this direction of verification, converting integrals into ordinary differential equations and finding the solutions, has significant trend and fresh impetus in the recent years. In this paper, along with the generalization of integrals, formation of ordinary differential equations and their solutions were also listed. Here in this article we obtained significant differential equations based on integrals of Russell [1], type. In the first part, generalizations of preliminary lemmas along with new integrals of logarithmic integrand were evaluated on the lines Mark Coffy [4]. Then first order linear differential equations were obtained for such integrals, to verify the truth of the solutions.
Environmental Issues and Strategic Communication Planning for Tadlac Ecotourism Project, Los Banos, Laguna, Philippines
Authors:   College of Agriculture and Food Science, University of the Philippines Los Baños, Los Baños, Laguna, Philippines, Catherine E. Lee , Cleofe S. Dr. Torres ,   College of Development Communication
Published: February 2023

Tadlac Lake, Los Baños, Laguna has been visited a lot of visitors recently. With the increase of number of visitors, environmental issues confront the integrity of Tadlac Lake Ecotourism Project (TLEP). The study was conducted to address these issues using proper communication strategy since the masterplan lacks communication component by identifying the key elements and their communication need and resources. A descriptive method using case study was used to answer the research problem and objectives. Focus Group Discussions and Key Informant Interview were used for gathering data wherein representatives of different stakeholders were categorized into three namely: government agencies, civil society groups, and private business served as the respondents of the study. Based on the findings, environmental issues in TLEP affect the land, water, waste, biodiversity and environmental pollution. Further, stakeholders indicated that they want to know about ecotourism; benefits and drawbacks and the projects of the government related to it. The information source preferred by the stakeholders are barangay consultations, brochures, flyers, and leaflets while the most accessible way for information sharing is face-to-face interaction. A communication strategy with key elements was also proposed based on all the results of this study.
Strategi peningkatan kompetensi guru dalam meningkatkan kualitas bahan ajar pada Sekolah Madrasah Aliyah Negeri di Kabupaten Karo
Authors: Umi Kalsum Eka , Siregar Roswani , Ramadhan Andri
Published: February 2023

Keberhasilan dunia Pendidikan tidak terlepas dari peran serta guru sebagai tenaga pendidik yang dituntut memiliki konpetensi yang mumpuni dalam mengembangkan bahan ajar. Bahan ajar merupakan seperangkat sarana atau alat pembelajaran yang berisikan materi pembelajaran, metode, batasan-batasan, dan cara mengevaluasi yang didesain secara sistematis dan menarik dalam rangka mencapai tujuan yang diharapkan, yaitu mencapai kompetensi atau subkompetensi dengan segala kompleksitasnya. Guru yang professional adalah guru yang mampu membuat bahan ajar yang inovatif dan menarik sehingga dapat memotivasi siswa dalam belajar. Kegiatan pengabdian masyarakat ini dilaksanakan pada Sekolah Madrasah Aliyah Negeri di kabupaten Karo Propinsi Sumatera utara dengan peserta dewan guru. Metode pelaksanaan dalam program ini meliputi pemberian ceramah mengenai strategi peningkatan kompetensi guru dalam meningkatkan kualitas bahan ajar. Adapun tujuan dari program ini adalah agar mitra mampu membuat dan meningkatkan kualitas bahan ajar yang sesuai dengan kurikulum yang berlaku.
Enhancing ESL Learners’ Emotional Intelligence Skills through Explicit Emotional Intelligence Instruction
Authors: Qanwal Sumaira , Ghani Mamuna
Published: February 2023

With a rapid awareness about the role of Emotional Intelligence (EI) in academic achievement these days, the present paper attempts to investigate whether the Emotional Intelligence of ESL learners can be enhanced through EI-based language instruction so that learners can show good language performance. The research sample consisted of 100 ESL learners with mixed levels of learning achievement (or IQ) enrolled in the BS program at the department of English, The Islamia University of Bahawalpur. A questionnaire (consisting of 71 items) based on Petrides’ (2009) Trait Emotional Intelligence Questionnaire-Short Form and Austin et al.’s (2004) modified version of Schutte et al.’s (1998) and a self-compiled EI-based course were used as research instruments. Following the objectives of the study, a quantitative-cum-experimental research design was adopted to intervene in 100 ESL learners’ EI skills by giving them a course on explicit EI-based Language Instruction and measuring their EI skills before and after the intervention with the help of the aforementioned questionnaire. The findings revealed that after taking EI-induced language instruction, there was a significant increase in the EI skills of all participants, irrespective of the level of their learning achievement. However, students with a higher level of learning achievement benefit more from EI instruction as compared to the ones with lower learning achievement.
A Blueprint for Minimizing Audit Anticipation Gap in a Developing Country: Stakeholders Perceptions
Authors: Ghandour Dina Ahmed Mohamed
Published: February 2023

Purpose: This paper provides a blueprint for minimizing Audit Anticipation Gap (AAG) in a developing country. The focus was on exploring the occurrence, causes, and consequent effects of the Audit Anticipation Gap in Sudan, by identifying the possible factors that contribute to that gap. This was achieved by surveying the opinions of practicing external auditors, key users of financial statements, and accounting educators.Research Design/Methodology/Approach: A qualitative research approach was adopted through a cross-sectional survey, using in-depth face-to-face structured personal interviews. Furthermore, purposive/judgmental sampling was utilized to select interviewees. Twenty-nine interviews were carried out, and their responses were analyzed using thematic content analysis.Major Findings: The findings did indicate that an Audit Anticipation Gap exists in Sudan due to a weak and undeveloped accounting and auditing profession in the country, ambiguity concerning auditor’s independence, lack of external auditor rotation in the majority of the financial sectors, rendering both audit and non-audit services, absence of rules and regulations that govern external audit practices. Furthermore, major contributing factors included misunderstanding the objectives of auditing, the audit process, and the auditor’s roles and responsibilities by key users of financial statements.Practical Implications: The study provided a wide range of findings that have significant implications for policy making geared toward minimizing the Audit Anticipation Gap in the country, so that accounting will play its proper role in its sustainable economic development.Originality/Value: This study contributes to the existing literature by providing detailed and comprehensive findings from a region that has gained little focus on the subject matter. Specifically, it has shed light on the weaknesses of the accounting and auditing profession in Sudan, with a particular emphasis on the Audit Anticipation Gap. Thus, by surveying the viewpoints of the key stakeholders, the study provided prescriptions for turning around the accounting profession in the country to a potential world-class status.
Entrepreneurship and Innovation in Public Management
Authors: Magul Michel Afif , Pasqualetto Antonio
Published: February 2023

Entrepreneurship is defined as the generation of a “new or innovative idea”. Innovation is the energy that drives productivity. It is the purpose or reason for any adaptation, improvement or invention, and when successfully applied, is able to transform scarce resources into results. It is known that an entrepreneurial culture in public organizations raises the level of management. The objective of this article is to evaluate the current Brazilian scenario regarding studies that investigate whether entrepreneurship and innovation are capable of transforming the public sector. The methodology used included the search for articles on the Capes journal portal. The results demonstrated the importance of an entrepreneurial profile with the capacity to innovate, with more flexible and creative behavior. They show how leaders can create market opportunities and are able to perfect their actions. It finds that an entrepreneurial culture in public organizations raises the level of management. It was found that in the public sector, at all levels of policy and services there are different forms of innovation including, conceptual, systemic, political, administrative/organizational, in-service products and in service.
Optimizing Disassembly Line Balancing Problem Using Multi-objective ADAM Optimizer Algorithm
Authors: Siddig Nadir , Mokhtar Abdallah , Abualnor Ahmed , Zhang Zeqiang
Published: February 2023

Disassembly for the end of life products considered a very important issue nowadays, to keep an environment is clean as much as possible and reduce pollution by reducing industrial waste, the disassembly line is to solve this problem, but the disassembly line is facing more problems such as smoothness of workload in workstations, hazard parts in disassembly products, etc. To optimize these problems in the disassembly line, we proposed a multi-objective ADAM optimizer algorithm to optimize and balance the objectives. An automatic disassembly line is assumed to increase disassembly processes rather than manually. The mathematical model embedded in the proposed algorithm simulated in default disassembly line, a Pareto set used to detect for non-inferior solutions in the algorithms, and the results indicated to improve the productivity of between 400% to 500%, reduced the energy consumption between 50% to 75%, reducing the number of workstations between 80% to 95%, and reduced cycle time between 70% to 85%.
Numerical Simulation and Experimental Study of Internal Ballistics Parameters for Howitzer Field Guns
Authors: Ahmed Mahjub  , H. M. Abuuznien Mohammed , M. A. Elmokhtar Haytham , A. Abdalla Mohammed
Published: February 2023

Howitzer Gun is a type of large-caliber artillery gun that typically utilizes a mixture of propellant grain shapes to control the burning inside the gun, and to impart the prescribed velocity to the projectile with the smallest mass of charge without exceeding the maximum allowable pressure. In this paper, a mathematical model has been developed to predict the main internal ballistic parameters i.e., Maximum Pressure (Max. P) and Muzzle Velocity (MV) for artillery howitzer guns. The propellant charge utilized is a single-base propellant using a mixture of dual-shape grain namely, tubular and multi-tubular seven-hole shapes. The mathematical model was solved numerically using the Runge-Kutta method in MATLAB environment for a 130 mm howitzer field gun which was chosen as a test case. The simulation results were obtained in terms of several plots showing the effect of grain shape and grain mixture ratio on the Max. P and MV along the gun barrel. Furthermore, the optimum mixture ratio gives a slightly reduced MV with a significant reduction in Max. P has been determined graphically and compared with experimental data taken from the test firing of the gun. The simulation results showed good agreement with the experimental ones (less than 10% numerical error). The proposed model can be used in the analysis and optimization of other similar gun systems taking into account the right input data for both guns, and propellants.
Redesigning & Manufacturing the First Punch for 107 mm Warhead
Authors: Mohammed Abdelnasir , Abdelateef Altaher Abdelateef Mohammed
Published: February 2023

This paper is devoted to show the effect of changing the design of the first punch on the wear consumption of the second punch by redesigning, simulating and manufacturing of the first punch for 107 mm warhead in order to reduce the consumption in the second punch, increase the productivity and also produce the product with high quality. SOLIDWORKS software for design and simufact forming for analysis has been used to design and manufacturing the first punch. Simufact forming has been used to study the die wear to determine the consumption rate of the second punch. The effective stress that affect the properties of the final product has been calculated by simufact. A comparison between the second punch which has been used after using the designed first punch and after using the old first punch shows that the wear in the second punch after using the new design is less than the wear in the second punch after using the old one, which means the life time of the second punch after using the new designed first punch will be longer than using it after using the old first punch. The various machining processes which is required for producing the punch are done, beside heat treatments. Final results of this work show that it is possible to improve the dies and use it in the optimal way also it prove the possibility of manufacturing dies locally instead of importing it from outside Sudan.
Study and Manufacturing of Heat Insulator for Thermoplastic Composite Propellant
Authors: Hamad Omer elamin , Nagmeldin m. elamin
Published: February 2023

The aim of this paper is to study the possibility of localizing the manufacturing of heat insulator for thermoplastic Composite propellant which plays an important role in modern warfare. The Original heat insulator had been tested and the mechanical properties were determined to take them as a reference results for the new one in working different formulation. The heat insulation materials which used are silicon dioxide, Titanium dioxide, Antimony tri oxide, calcium carbonate and talk powder. It was seen that, the using of the above materials grand good results in the first testing stage. When the heat insulator used in the production processes some remarks were appeared, such as the flow by heat during homogenizing process. One of the formulations suggested and tested, was passed all the production processes and tests in the real product and grant excellent results compared with the Original heat insulator. The erosion rate for local insulator was 0.36mm/s while the erosion rate for the Original one is 0.37mm/s. This work proved that, the production of heat insulator for Thermoplastic composite propellants can be localized successfully.
Centrifugal Compressor and Bell mouth Air Intake Preliminary Design for Micro Turbojet Engine
Authors: Ali Hamed Mohamed Ahmed , Abdallah Almadani MuhammadAlhassan  , Abdelrazig Abdelfadail Abdelrazig  , Alla aldeen Ismail Massar  , Muhammed Musa Haroun
Published: February 2023

This paper presents a design of centrifugal compressor and air intake for micro turbojet engine of 200 N thrust. Because of the small size of the micro turbine engines the air intake is designed in the form of bellmouth air intake in order to capture the needed amount of mass flow rate (0.45 kg/s). The function of the air intake is to deliver the air to the entry of the centrifugal compressor. The air intake has been drawn with start-up motor to take in the consideration the effect. The centrifugal compressor was designed to deliver 3.8 pressure ratio with efficiency about 77%.  The compressor impeller was built with 7 main blades and 7 splitters in order to reduce the effect of slip at the exit of the impeller due to pressure difference between pressure and suction side of the main blade.  Diffuser of 13 vanes also was designed to increase the static pressure, direct the flow to the combustion chamber and decrease the flow velocity before to enhance the combustion process.  The structural integrity for impeller was validated using ANSYS software for aluminum alloy 7075-T6; 7075651. In addition, the aerodynamic analysis was investigated using NUMECA software. The most important findings of the extensive analysis were; the impact of air intake on compressor performance is very crucial. It add an increment in efficiency and pressure ratio, it should be taken in consideration in early design stage of the compressor. The highest performance characteristics of compressor were achieved by accurate design optimization of impeller-diffuser interaction.
Design and Implementation of CNC Writing Machine Based on Arduino Micro-controller
Authors: Asaad Asaad musaab Ali 	yousif , Mohammed Alamein Taha Babker Ibrahim  , Mahmoud Osman Suliman Omer  , Marwa Mahmoud AbdAllatif Mohamed
Published: February 2023

This paper discussed the design and implementation of a Computer Numerical Control (CNC) machine for writing or sketch by employ parts of computer scraps (DVD-ROM). The Arduino Uno used as the controller for this project with using Inkscape program, which converts images and text into g- code format and then sends this g- code to the processing3 program which is an interface the connection between the arduino and the computer and the language of the CNC machine. The g-code includes a set of x y z coordinates that are sent to the motors, the Z coordinates are transmitted to the servo motor that directs the movement of the pen, the Y coordinates are sent to the stepper motor 1 that directs the horizontal movement of the DVD rail and the X coordinate is send to the Stepper motor 2 that directs the vertical movement of the DVD rail. This project can be used in logo Design. CNC machines can be utilized ceaselessly 24 hours every day, 365 days per year and just should be turned off for intermittent support.
Structural Design and Analysis of a Light Aircraft Wing
Authors: HANA.M. ALMAGZOB  , TARIK.H. ELSSONI  , ABDULAZIZ ABDUL MAJID
Published: February 2023

The aim of this study is to perform structural design and analysis of a light aircraft wing. Both aerodynamic analysis and structural design of the wing are covered. The aerodynamic analysis is achieved by using Schrenks Approximation Method simulated in MATLAB to estimate the lift distribution. In addition, static stress analysis of the wing is carried out to compute the stresses at wing structure when subjected to the generated aerodynamic loads and thereby examine its structural reliability. The stresses are estimated by using the finite element software package MSC/NASTRAN/PATRAN. A maximum Von Mises stress of 135MPa is obtained which is less than the yield stress for aluminum alloy used in wing design. On the other hand, and based on the finite element model, a free-vibration analysis is performed for the whole model. The frequencies for the first three modes and the corresponding mode shapes are presented. The purpose of this study is to correlate and validate the finite element model against the modal test in preparation for further complex analysis. The finite element results have shown that the suggested wing configuration of the light aircraft is safe, with margins of safety equal to 1.33 which occurs at the root section.
Rear Fuselage Structural Optimization Using Genetic Algorithm
Authors: Elmshaikhi Mutwakil , ABDALMAGED
Published: February 2023

Structural optimization is one of the most important tasks during the airplane structural design and yet there is a lack of well established procedures to determine the optimum design of aerospace structures. This paper represents development of structural optimization code based on genetic algorithm, and results for light aircraft aft fuselage optimal design using the optimization code. We have developed a MATLAB code according to the genetic algorithm and FE model for the composite light aircraft aft fuselage using MSC PATRAN to generate NASTRAN input file; the MATLAB code was coupled with MSC NASTRAN which used to perform linear static and buckling analysis. we obtained the minimum weight of the aft fuselage with a linear static and buckling constraints; the minimum weight is 21.6 kg; it has been obtained after 43 iterations; the margin of safety is of the optimum design is 1.22 and the buckling factor is 1.24 and hence the structure is free of static failure and buckling. The code is efficient in the conceptual and preliminary structural design phases to obtain the optimal aft fuselage weight.
Improvement of the Design of Rocket Propelled Granite (RPG.7) Main Tubes Forging Dies
Authors: Eltahir Elhadi Malik , Abdelfattah Bilal Abdelsalam  , Abdelnasir Mohammed Zain
Published: February 2023

This paper presents a proposed new design of a forging die used for producing the forged tube of a rocket launcher. In the practiced technology for producing as the forged tube many problems raised as a result of the selection of the parting line (P.L.) at the upper tangent of the circular cross-section of the product, which resulted in a semi-parabolic cross- section that causes some technical mishaps which can be summarized in the following points: the large amount of raw material lost as turning chips during the turning process of the machined tube; The high consumption rate of tools during the turning process of the machined tube; damage caused by rough turning lathe machine as a result of the high vibrations due to turning of a non-cylindrical profiles and the short life-time of the forging die due to its embracing of the majority of the volume of the forge tube. In the proposed design the parting line (P.L.) will be located in the mid-section of the circular cross-section of the product (the forged tube) in order to solve these problems .This led to a design of a new set of hammering dies and subsequently a set of trimming dies by applying the standard design considerations and with the help of the CAD/CAM package software: ”VISI-15”. The proposed design differs significantly from the upsetting forging which have a parting line perpendicular to the longitudinal rolling direction of the forged product. When using the new designed dies, the saving in an input raw material (weapon steel) is estimated to reach up to 5 kilograms per forged tube. This became a considerable saving in the annual production cost. Minimizing the handling weight of the forged tube (from 16 Kg/Piece to 5 Kg/Piece) during the production processes results in a relatively less man power effort compared with the practiced technology. Besides the minimization of the consumption rate of the cutting tools and the rate of the replacement of the rough turning machines
Development of a Computer Based Gas Turbine Instruments Test system
Authors: Yousif Elkhidir Tay Allah , Faris Osman Mohamed  , Ahmed Alamin
Published: February 2023

Due to the significant importance of gas turbine engines as it is the core of the aircr aft, the engine health status should be tested periodically. Testing methodologies are needed to conduct the engine tests required as a part of airworthiness certification. In this project, a Data Acquisition System (DAQ) was developed as a turboshaft engi ne (GTD 350) testing system. This system was developed to monitor the engine parameters for determining its condition. A PIC 16F877A microcontroller was used as the heart of the DAQ. Internal Analog to Digital Converters (ADC) acquired data from analog sig nals. The analog signals gathered from temperature, tacho generator, throttle, and pressure sensors were transformed into digital format, and then the corresponding data was sent serially to Personal Computer (PC) through a microcontroller serial port. The visual basic program was designed to convert, scale, and display these data. Furthermore, the system was designed to analyze, compare the displayed data with standard stored data, and provides automatically a troubleshooting list whenever upnormal data oc curred. The developed test system had been applied successfully and the results are accurate, reliable, and acceptable.
Design and Optimization of Low speed wind tunnel Contraction Using CFD
Authors: Rami Abdalgadir Alneem  , Musa Eimad eldin E.
Published: February 2023

This paper describes the design and fabrication of a device measuring mass properties include mass, the center of gravity, and moment of inertias properties by integrating three operations into one equipment device for the object GRAD rocket. This paper focuses only on measuring mass and center of gravity in a single setup. The design is divided into three steps. The first step is to explain how to measure the mass and center of gravity. The second step is the design and fabrication considerations of the equipment device. In the third step, the data acquisition systems for load cell using PLC. Test results of fabricated devices on a calibrated bar are homogeneity, and its center of gravity is also known. The mass and center of gravity of the GRAD rocket are a measure for three samples. And the results were within the required tolerance with high accuracy compared to CAD software, and the results achieved a percentage error rate of less than 5% for both the mass and center of gravity.
Preparation and Characterization of Polymer bonded Explosives Based on Isoprene Rubber
Authors: Noreldeen Moammer , M.M. Ahmed  , M. A. Abdalla  , M. F. Karar
Published: February 2023

The aim of this work is to prepare five samples of Polymer Bonded Explosives (PBXs) with various percent of Isoprene Rubber (IR) and Cyclotrimethylenetrinitramine (RDX) (RDX /IR), based on Sulfur Vulcanization process, and applying them on warheads as insensitive explosive. Density, sensitivity to impact, and ignition temperature have been tested. Mixer water path which used for the manufacturing of plastic bonded explosives (PBXs) (capacity 5 L), Filling was made by casting methods, Filling in C-8 rocket warhead. The killing range of the C-8 (IR-RDX) was 18 meters.
Study of Detonation Wave Profile of Shaped Charge for Different Liner Configurations
Authors: F. Karar Mohamed , Abdalla Mohammed A. , M.H. Abuuznien
Published: February 2023

Shaped charges are explosive devices with a high penetration capability; they are used for both civilian and military purposes. Shaped charges are used against different kinds of armors, primarily as anti-tank devices. This work involved modeling and simulation to study the performance parameters of an anti-tank warhead of type PG-7 (40 mm) shaped charge with different liner configurations. The mentioned performance includes jet formation, jet velocity, breakup, and penetration (its main parameters diameter and depth of penetration). ANSYS AUTODYN software is used for numerical simulations. Different solver and modeling alternatives of AUTODYN are evaluated for the jet formation and penetration studies. In AUTODYN two solvers were used, Euler solver and Lagrange solver. There are four cases that will discuss in this work, case-1 represents the original PG-7 with a cone angle of liner and the explosive charge is comp-A3, case-2 is the same as case-1 but the liner cone angle is, in case-3 modify the shape of the liner from cone to bi-cone with angle 22.5o and 60o, and case-4 is the same as case-3 but the angle of bi-cone is 14.5o and 60o. The results show that angle 60o is better than angle 45o, and the shape of the liner with bi-cone gives results of penetration better than that of the conical liner.
Design and fabrication device for determine Mass and Center of gravity of GRAD rocket
Authors: Rami Abdalgadir Alneem  , Omer Mohamed A.
Published: February 2023

This paper describes the design and fabrication of a device measuring mass properties include mass, the center of gravity, and moment of inertias properties by integrating three operations into one equipment device for the object GRAD rocket. This paper focuses only on measuring mass and center of gravity in a single setup. The design is dividing into three steps. The first step is to explain how to measure the mass and center of gravity. The second step is the design and fabrication considerations of the equipment device. In the third step, the data acquisition systems for load cell using PLC. Test results of fabricated devices on a calibrated bar are homogeneity, and its center of gravity is also known. The mass and center of gravity of the GRAD rocket are a measure for three samples. And the results were within the required tolerance with high accuracy compared to CAD software, and the results achieved a percentage error rate of less than 5% for both the mass and center of gravity.
Experimental Study of Boundary Layer flow over a Zero Pressure Gradient Convergent Riblet Plate
Authors: Osman Elmukashfi , Lavi.R.Zuhal  , B. Nugroho
Published: February 2023

Reducing the friction force in turbulence flows is an important research topic in fluid mechanics. Shark skin has less drag than smooth skins, therefore shark skin surfaces have been widely used. However, some turbulence mechanisms are not completely understood and the drag reduction mechanism of real shark skin has not been thoroughly understood. Many researchers have experimentally studied bio-inspired riblet surfaces to explain some specified phenomena for the sharkskin drag reduction effect. The objectives of this study were to investigate the effect of the converging-diverging riblet-type surface roughness on a zero pressure gradient turbulent boundary layers, to investigate the effect of the surface roughness on the large-scale features and to confirm that converging-diverging riblet generate large-scale counter-rotating vortices. The wind tunnel experiments involved laminar and turbulent flow at various Re were performed. Hot-wire anemometry was used to investigate near-wall flow structure over smooth and riblet surfaces. The results showed that the convergent riblet plate significantly impacted the boundary layer properties. Furthermore, the turbulent skin friction drag over the convergent riblet was higher than on a smooth surface. The results agree well with previous studies.
Performance Analysis of Eroded Compressor Stage
Authors: Abdelwahid Mohammed Balla , Musa Eimad Eldin Elhadi , Taha Hazim Mohammed , Hamed Sohaib Osman , Alhassan Esra Abdulrahman Mohamed
Published: February 2023

Erosion of compressor blades due to operation in dusty environments is a serious problem for the manufacturers and users of gas turbine engines, because of significant degradations in performance. This study has been devoted to estimating the change of performance parameters of an axial compressor stage due to erosive deterioration. The influence of erosion considered as consequences of a reduction of rotor blade airfoils, and an increase of tip clearance. The results of this study obtained using the CFD code “NUMECA Fine/Turbo”. This CFD code is a steady, quasi-three-dimensional Reynolds Averaged Navier-Stokes (RANS) solver. A Spalart-Allmaras turbulence model is used. The compressor stage parameters presented for three rotational speeds. Proposed a new approach to consider the changes of geometric parameters of blades due to erosion. Presented an analysis of the effect of erosion and its individual consequences on the pressure ratio, isentropic efficiency and stability margin of the stage. The obtained results verified using an existing experimental data.
Design and Simulation of a CAN Type Combustion Chamber
Authors: Abdelwahid Mohammed Balla , Hazim Mohammed Taha  , Amar Mustafa Suliman  , Hozaifa Mohammed Nazir  , Ayaat Ibrahim Ali
Published: February 2023

The design of high-performance combustion chambers for gas turbine engines is considered one of the difficult tasks for engineers. This study presents the design of a can-type combustion chamber. The parametric cycle analysis of a low bypass turbofan engine (AL-31F) was provided to obtain the air properties at the combustor inlet. Empirical equations are used to determine the dimensions of the combustion chamber. GAMBIT software was used to create the combustor model and the simulation was accomplished using ANSYS software. This CFD code is a steady, quasi-three-dimensional Reynolds Averaged Navier-Stokes (RANS) solver. K-w viscous model and non-premixed combustion model are used. Presented the results of cycle analysis of the turbofan engine and the dimensions of combustor components and cooling holes. An analysis of the distribution of temperature, pressure, and velocity throughout the combustion chamber is provided. The obtained results were compared for analytical and computational approaches and suggested with previous studies.
Enhancing the Bending Stiffness of Nanosatellite Composite Panel
Authors: Sulieman Abdulaziz Abdulmajid , Awad Ibrahim  , Tariq Hassan
Published: February 2023

The extreme working environment presented in many forms such as inevitable vibrations caused by various sources can lead to problems of the impairment of the nanosatellite functionality and integrity of its structure, as well as weakening the protection of internal components, which may trigger minor structural damage to total failure. To solve these addressed problems in this work, the bending stiffness of square laminated composite panel used in the structure of CubeSat, a version of nanosatellite, has been improved. A literature review for the previous studies and publications related to the current work has been studied. A mathematical equation that describes the stiffness behaviour of the composite panel has been derived based on the classical laminated plate theory (CLPT). The equation of motion (E.O.M) is also derived according to the Euler-Lagrange energy equation of the second kind. For determining the eigenfrequencies and eigenmodes of vibrating panel, Fourier series is used to solve the E.O.M of plate supported with a numerical solution using finite element method (FEM) for verification. The optimisation process is conducted to improve the bending stiffness of the structure, which is indicated by the increased value of first mode fundamental frequency, by finding the optimum stacking sequence for a set of design constraints using Miki Diagram method. The obtained results and conclusion from the addressed problem have been reported at the end of this work presenting the enhanced composite-panel bending stiffness and showed a promising findings that believed to contribute solving problems relevant to structural performance of aerospace structures.