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PRODUCTIVITY AND FRESH SEMEN CHARACTERISTICS OF SIMMENTAL BULL DIFFERENT AGES Satrio, Faisal Amri; Karja, Ni Wayan Kurniani; Setiadi, Mohamad Agus; Kaiin, Ekayanti Mulyawati; Kurnia, Asep; Purwantara, Bambang
Jurnal Kedokteran Hewan Vol 16, No 1 (2022): March
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v16i1.23487

Abstract

This study aimed to determine the effect of age on bulls productivity and fresh semen characteristics of Simmental bull in Indonesia. A total of 1071 data of semen collection and production from four age groups (two years old (yo), four yo, 10 yo with high semen rejection (10 HR), and 10 yo with low semen rejection (10 LR) were used in this study to evaluate the productivity and characteristics of fresh semen. The results showed that the pre-freezing and post-freezing semen rejection rate of 10 HR group was higher (P0.05) than the other groups. The four yo group had the percentage of second semen ejaculation each collection was higher (P0.05) than the other groups. Furthermore, semen volume, sperm concentration, and total sperm concentration significantly increased (P0.05) until four yo and then decreased (P0.05) in 10 yo groups. The 10 HR group had the volume and total sperm concentration significantly different (P0.05) with a group of 10 LR. Total sperm motility, individual motility, and mass movement were lower (P0.05) in 10 HR than the other groups. In conclusion, age differences of bulls can affect the productivity and characteristics of fresh semen.
PERLINDUNGAN HUKUM BAGI PEKERJA ALIHDAYA DENGAN UPAH DIBAWAH KETENTUAN: TINJAUAN TEORI KEPASTIAN HUKUM Kurnia, Asep
Legal Standing : Jurnal Ilmu Hukum Vol. 8 No. 1 (2024): Januari-April
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/ls.v8i1.7961

Abstract

Outsourcing is to respond to global economic developments and the speed of technological development so that global competition is very tight. The logical consequence of this condition is the decision by company leaders or management to hand over or outsource some of the company's processes to other parties. The aim of this research is the implementation of Law Number 11 of 2020 concerning Job Creation in relation to providing protection for outsourcing workers. This type of research is qualitative, with a normative legal research approach. The results of the discussion obtained the answer that legal protection for outsourced workers is viewed from the principle of legal certainty in Law Number 13 of 2003 and Law Number 11 of 2020 on Job Creation concerning Employment which can be seen in two forms, namely legal certainty in preventive protection and legal certainty in repressive protection. Legal certainty in the context of preventive protection covers several aspects, including clarity regarding employment relations, time-limited work agreements (PKWT), social security, wage levels and wage compensation. In the context of outsourcing, there are no longer any restrictions on the types of work that can be outsourced. For this reason, regulations are needed that provide further detail regarding legal certainty in preventive and repressive protection, to ensure more comprehensive protection.
Analysis of the Influence of Adhesive, Geometry, and Manufacturing Processes on Mixed Mode Stress Ratio in Single Lap Shear Adhesive Joint Structures of Aluminum and Composite Plates Kurnia, Asep; Hadi, Bambang Kismono; Syamsudin, Hendri; Suada, Muhamad Giri
Jurnal Penelitian Pendidikan IPA Vol 10 No 11 (2024): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i11.9107

Abstract

In aircraft structures, composite plate joints often present significant challenges. Mechanical fastenings such as pins, bolts, or rivets require holes to be drilled in the plates, which reduces the strength of the laminate due to stress concentrations around the hole edges. These joints frequently become sources of structural failure in aircraft. Therefore, the design of composite plate joints is crucial to maintain structural integrity. Adhesive joints offer several advantages over mechanical joints, including the ability to join two different materials, more uniform stress distribution along the joint, and reduced weight since no bolts or rivets are needed. The most common adhesive joint design is the Single Lap Joint (SLJ), which is popular due to its simple geometry and high structural efficiency. However, the main drawback of the SLJ is load eccentricity, which leads to secondary bending and undesirable normal stresses along the adhesive edges. The hypothesis of this study is that SLJ conditions with optimal shear strength can be achieved through the right combination of adhesive type, bond surface preparation, and joint configuration. This study analyzes the influence of various adhesive materials, joint designs, and manufacturing methods using numerical modeling methods, validated with analytical approaches and ASTM standard testing. Numerical modeling is conducted using the finite element method with a cohesive zone model (CZM) approach to examine stress distribution in various cases, such as the impact of geometry, adhesive thickness, and joint length. The normal and shear stress distribution along the joint is found to significantly affect the strength of the SLJ, highlighting the importance of careful design and material selection in these applications.
The Role of the Indonesian Air Force in Military Operations Other Than War (MOOTW) Satispi, Evi; Puspita Dewi, Maya; Kurnia, Asep; Sujatmiko, Ari
Journal Of Social Science (JoSS) Vol 4 No 12 (2025): Journal of Social Science
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/ww5dyq21

Abstract

This study examines the role of the Indonesian National Army Air Force (TNI AU) in the implementation of Non-War Military Operations (OMSP), especially in the handling of non-natural disasters of the COVID-19 pandemic at the Raden Sadjad Air Force Base, Natuna. The COVID-19 pandemic is a non-traditional security threat that requires a rapid and coordinated response from various sectors, including the military. This study uses a qualitative approach with a case study method, analyzing the role of the Indonesian Air Force based on Health Theory which includes the stages of pre-action, action, and post-action (maintenance). Data was collected through in-depth interviews with Indonesian Air Force officers, health workers, and local government officials, as well as direct observation and documentation studies. The results of the study show that the Indonesian Air Force, especially the Raden Sadjad Base, played a strategic role in the quarantine of 238 Indonesian citizens from Wuhan in February 2020, the distribution of health logistics, and coordination with various agencies. However, there are significant challenges in the form of limited regulations regarding the operational procedures of the Indonesian Air Force in dealing with non-military threats in the form of dangerous viruses, coordination between institutions that are not optimal, limited infrastructure including defense equipment that is not commensurate with the size of the area, and gaps in human resource capacity. Analysis using Health Theory revealed that the pre-action stage requires strengthening through the preparation of clear Standard Operating Procedures (SOPs) and strengthening preventive coordination, 
Analysis of the Integrated Smart Maintenance System to Support Aircraft Readiness in Air Defense Facing Regional Crises Novian, Randy; Setiawan, Asep; Hasanudin, Usni; Kurnia, Asep
Indonesian Journal of Multidisciplinary Science Vol. 5 No. 4 (2026): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/ijoms.v5i4.1254

Abstract

This research examines the necessity and implementation of the Integrated Smart Maintenance System (ISMS) as a strategic solution to enhance the aircraft readiness of the Indonesian National Armed Forces (TNI) amidst the growing complexity of regional and global security challenges. The study is grounded in the fact that the current aircraft maintenance system within TNI remains reactive, fragmented, and lacks predictive capabilities supported by artificial intelligence. These limitations result in high aircraft downtime, delayed logistics support, and inefficiencies that directly affect Indonesia’s air defense credibility. The study employs a qualitative approach using a case study method, combining in-depth interviews with TNI logistics officials, aircraft technicians, and defense industry stakeholders (PT Dirgantara Indonesia and GMF AeroAsia), along with comprehensive document analysis and literature review. The theoretical framework encompasses Regional Security Theory (Buzan & Wæver), Air Defense Theory, Maintenance Theory (Tjiptono & Diana), Information System Theory (McLeod), and strategic planning and forecasting concepts. The findings reveal fundamental weaknesses in TNI’s maintenance system, including poor data integration, the absence of predictive algorithms, limited spare parts availability, and weak coordination across services and industry. Nevertheless, SWOT analysis indicates strong opportunities for ISMS development, supported by defense modernization initiatives, national industrial readiness, and the advancement of digital technologies such as AI, IoT, and data analytics. ISMS is projected to increase aircraft readiness to 70–80%, reduce downtime, strengthen deterrence capability, and establish a digital maintenance culture within TNI.