2686 research outputs found
Sort by
PENGARUH PERSENTASE KATALIS BIOETANOL DARI UMBI-UMBIAN PADA PROSES FERMENTASI TERHADAP TEMPERATUR NYALA API
Get PDFPeningkatan jumlah kendaraan bermotor mengakibatkan penurunan jumlah bahan bakar minyak sehingga diperkirakan akan mengalami kehabisan stok nantinya. Untuk itu penelitian ini dilakukan untuk mengetahui pengaruh waktu fermentasi pembuatan bioetanol umbi kayu, umbi walur, dan umbi jalar terhadap temperatur nyala api. Penelitian ini merupakan penelitian eksperimental. lama fermentasi berpengaruh terhadap temperatur yang dihasilkan oleh bioethanol dari ubi jalar, ubi walur, dan singkong. Suhu terbaik dihasilkan bioethanol dari ubi jalar dengan kadar ragi 15 gr dan waktu fermentasi 90 jam sebesar 37,06 °C dan suhu terendah dihasilkan bioetanol dari ubi walur dengan kadar ragi 10 gr dan waktu fermentasi 50 jam sebesar 26,96 °C
STUDI PERBANDINGAN CURAH HUJAN AKTUAL DAN DATA SATELIT GPM DI BENDUNGAN KUNINGAN
Get PDFData curah hujan sangat penting karena sering digunakan dalam perhitungan perencanaan infrastruktur air, pengelolaan daerah aliran sungai, pembangkit listrik tenaga air, pencegahan banjir, irigasi, pemenuhan kebutuhan air baku, dan penanggulangan kekeringan. Data curah hujan ini juga disebut sebagai data curah hujan observasi. Namun, saat ini terdapat satelit yang dapat digunakan untuk memperoleh data curah hujan. Tujuan penelitian ini adalah untuk mengetahui perbedaan antara curah hujan aktual dan data curah hujan yang diperolah dari satelit dengan studi kasus di daerah aliran Sungai Bendungan Kuningan. Berdasarkan data yang diperoleh (1 Juni 2000 – 30 September 2021) dari dua sumber data, diperoleh hasil yang berbeda untuk debit puncak. Pada Gambar x yang bersumber dari stasiun darat Ciwaru, debit hujan maksimum terjadi pada 29 Januari 2003 sebesar 24,4 m3/s, sedangkan data dari satelit GPM menunjukkan debit hujan maksimum pada 26 oktober 2017 sebesar 42,5 m3/s. curah hujan maksimum tahunan rata-rata terjadi pada tahun 2010 dari kedua data yang diperoleh. Nilai korelasi yang diperoleh adalah 0,70, yang termasuk dalam kategori kuat. Nilai RMSE cukup tinggi. Root Mean Square Error (RMSE) digunakan untuk mengukur perbedaan antara nilai observasi dan nilai situasi
UJI METABOLIT SEKUNDER PADA DAUN DAN BUAH ARBEI HUTAN (Rubus rosifolius) DARI DESA DOLAT RAYAT MENGGUNAKAN METODE GC-MS
Get PDFABSTRAKMasyarakat di Desa Dolat Rayat memanfaatkan arbei hutan (Rubus rosifolius) sebagai tanaman obat tradisional dalam kehidupan sehari-hari. Penggunaan arbei hutan sebagai obat lebih didasarkan pada pengetahuan tradisional yang diwariskan secara turun-temurun. Penelitian ini dilakukan untuk mengidentifikasi senyawa metabolit sekunder yang terkandung dalam buah dan daun arbei hutan. Penelitian dilaksanakan pada Maret-Mei 20224 di Laboratorium Pengembangan Politeknik Teknologi Kimia Industri (PTKI). Untuk mengidentifikasi kandungan senyawa aktif selain dilakukan pengujian kualitatif, juga dilakukan pengujian menggunakan metode GC-MS. Hasil penelitian menunjukkan pada buah terdapat senyawa flavonoid, terpenoid, tanin, dan alkaloid, sedangkan pada daun terdapat senyawa flavonoid, steroid dan tanin yang bermanfaat untuk kesehatan manusia dan juga untuk pertahanan diri tumbuhan. Berdasarkan hasil uji menggunakan GC-MS pada ekstrak daun arbei hutan terdeteksi beberapa senyawa metabolit sekunder yaitu 4-penten-2-ol, alkoholmethyl alcohol, ethanol, undecanoic acid, hydroxy-1, 1,9-octadecenoic acid (z)-me, methyl ester, n-hexadecanoic acid, oxacyclododecan-2-one. Senyawa yang terdeteksi pada ekstrak buah ekstrak arbei hutan yaitu methyl alcohol, pentadecanoic acid, n-hexadecanoic acid, 9-tetradecen-1-ol, (e), 1-tridecene.                                                     ABSTRACTPeople in Dolat Rayat Village use forest strawberries (Rubus rosifolius) as a traditional medicinal plant in their daily lives. The use of forest strawberries as medicine is based more on traditional knowledge passed down from generation to generation. This research was conducted to identify secondary metabolite compounds contained in forest strawberry fruit and leaves. The research was carried out in March-May 2024 at the Industrial Chemical Technology Polytechnic Development Laboratory (PTKI). To identify the active compound content, besides from qualitative testing, it was also carried out using the GC-MS method The results of the research showed that the fruit contains flavonoids, terpenoids, tannins and alkaloids, while the leaves contained flavonoids, steroids and tannins which are beneficial for human health and also for plant self-defense. Based on the test results using GC-MS on forest strawberry leaf extract, several secondary metabolite compounds were detected, namely 4-penten-2-ol, alcohol-methyl alcohol, ethanol, undecanoic acid, hydroxy-1, 1,9-octadecenoic acid (z)-me, methyl ester, n-hexadecanoic acid, oxacyclododecan-2-one. The compounds detected in forest strawberry fruit extract were methyl alcohol, pentadecanoic acid, n-hexadecanoic acid, 9-tetradecen-1-ol, (e), 1-tridecene.Â
KEPADATAN CACING TANAH PADA TANAMAN HORTIKULTURA DI KAMPUNG SALOR INDAH DISTRIK KURIK KABUPATEN MERAUKE
Get PDFABSTRAK Cacing tanah merupakan salah satu organisme tanah yang mempunyai peran penting dalam memperbaiki aerasi tanah, mengurai bahan organik dan meningkatkan kesuburan tanah. Penelitian ini bertujuan untuk mengetahui kepadatan cacing tanah pada tanaman hortikultura. Metode yang digunakan yaitu kuantitatif deskriptif. Penelitian diawali dengan melakukan survei untuk menginventarisir jenis tanaman hortikultura yang ada di Kampung Salor Indah. Selanjutnya dilakukan pengambilan sampel tanah pada lahan tempat budidaya tanaman kangkung, jagung, sawi, tanaman terong dan pada lahan yang tanpa tanaman. Pengambilan sampel tanah dilakukan dengan luasan P x L x T yaitu 25 cm x 25 cm x 20 cm. Selanjutnya dilakukan pengamatan keberadaan cacing tanah. Hasil penelitian menunjukkan bahwa pada budidaya tanaman hortikultura di Kampung Salor Indah Distrik Kurik Kabupaten Merauke kepadatan cacing yang paling banyak ditemukan pada lahan jagung dengan total 34 cacing, setelah itu pada lahan kangkung 21 cacing, pada lahan sawi sebanyak 18 cacing, pada lahan terong 12 cacing dan pada tanah tanpa tanaman 10 cacing.  ABSTRACT Earthworms are one of the soil organisms that have an important role in improving soil aeration, breaking down organic matter and increasing soil fertility. This research aims to determine the density of earthworms on horticultural plants. The method used is descriptive quantitative. The research began by conducting a survey to inventory the types of horticultural plants in Salor Indah Village. Next, soil samples were taken on land where kale, corn, mustard greens, eggplant plants were cultivated and on land without plants. Soil samples were taken with an area of L x W x H, namely 25 cm x 25 cm x 20 cm. Next, observations were made for the presence of earthworms. The results of the research showed that in the cultivation of horticultural crops in Salor Indah Village, Kurik District, Merauke Regency, the highest density of worms was found in corn fields with a total of 34 worms, followed by 21 worms in water spinach fields, 18 worms in mustard fields, and 12 worms in eggplant fields. and on land without plants 10 worms.Â
Kemitraan Pertanian: Melalui Asas Proporsionalitas Dengan Sistem Mudharabah
Get PDFThe decline in economic growth has an impact on increasing unemployment rates, both in the industrial and agricultural sectors, thereby making the poor population increase and becoming one of the groups most vulnerable to the impact of the Covid-19 pandemic. That is the fate of farmers who have been hit by the impact of the Covid-19 pandemic, and their situation is increasingly far from the prospect of achieving prosperity. Considering this, there is a need for a concept that can be an alternative for improving farmers' welfare through agricultural partnership patterns. In this regard, updating the agricultural partnership agreement model based on the principle of proportionality, in combining the muzara'ah contract with the mudharabah system, could be an alternative. This research is a normative legal research that analyzes legal rules relating to the principle of proportionality, muzara'ah contracts with the mudharabah system. The focus of research in this journal is: First, understanding and describing muzara'ah contract collaboration with the mudharabah system in the rice farming partnership pattern. Second, understand and seek justice based on the principle of proportionality of the muzara'ah contract with the mudharabah system in the rice farming partnership pattern
Pencantuman Klausula Eksonerasi Dalam Syarat Dan Ketentuan Aplikasi Trading Efek
Get PDFThe rapid digitalization of technology has influenced the efficiency of financial services, particularly in the capital market sector. Consumers who initially conducted securities transactions face-to-face through representative can now do so through electronic devices online. However, it comes with a flaw. When problems occur in conducting virtual transactions, sometimes companies (PUJK) include an exclusion terms to avoid such responsibilities, therefore legal protection is needed. The research method used is a normative juridical approach. The result of this research is that the form of agreement used in securities services is in the form of a standard electronic-based agreement, and is valid based on Article 1320 of the Civil Code and UU ITE, where the form of agreement is referred to as a clickwrap agreement. The weakness of a standard agreement is the lack of a bargaining process, allowing the party in a strong position to include exoneration clauses that are prohibited by legislation in the agreement to avoid losses. The form of legal protection that can be provided is by establishing UU 21/2011, to establish a Financial Services Authority (OJK), as a means of legal protection focusing on the financial services sector. The presence of the OJK can provide legal protection from a preventive aspect, by establishing POJK No. 06/POJK.07/2022. Meanwhile, repressive legal protection can be provided by imposing sanctions on PUJK, as well as providing a dispute resolution mechanism through the establishment of the Lembaga Alternatif Penyelesaian Sengketa (LAPS SJK) as a substitute for the Badan Penyelesaian Sengketa Konsumen (BPSK)
Tindak Pidana Eksploitasi Seksual Komersial Anak
Get PDFIt is still felt that the implementation of the Child Protection Law has not provided justice for victims. Apart from that, these regulations also cannot provide full guarantees of children's rights for victims. At least, through the two case studies raised by the author, it can be seen that there are several differences in the fulfillment of children's rights as victims. The legal research method used is empirical juridical using a case approach, conceptual approach and statutory regulations approach. The results of the research have found conclusions from both problem formulations. The guarantee of victim protection has not yet been realized in the Child Protection Law, so improvements are still needed to prevent disharmony. Implementation of guarantees for victim protection also cannot proceed according to procedures. This was because the prosecutor experienced several obstacles, namely the case files were incomplete and the victim witnesses could not be presented during the trial process. These obstacles can be minimized by the prosecutor working together with investigators, social workers, and creating strategies to fully guarantee the victims' rights
Perceraian Ghaib Menurut Hukum Perkawinan Di Indonesia
Get PDFUnseen/mafqud divorce is a divorce petition submitted by one of the parties to the Court without the whereabouts of the Defendant or Respondent being clearly unknown. This unseen/mafqud divorce is regulated in the Marriage Law, Government Regulations, Civil Code and the Compilation of Islamic Law. One example of an unseen divorce case is case number 3156/Pdt.P/2017/PA.Sda. The mechanism for an unseen divorce is the same as a contested divorce or talak divorce, except that there is an absolute requirement for submitting a request for an unseen divorce, namely by attaching a certificate of disappearance of the Defendant/Respondent from the village where the Defendant/Respondent resides. . Apart from that, the consequences of a ghaib/mafqud divorce for the parties are that the status between the wife and husband becomes clear, Ba'in Sughraa, where the ex-husband and ex-husband cannot reconcile without a new contract, an iddah period (waiting period). ) for the wife so that she is not allowed to remarry before her iddah period has been completed, the verstek decision which is the result of the Defendant/Respondent not attending the unseen divorce hearing, this unseen/mafqud divorce also has an impact on child maintenance, and also has an impact on joint assets (gono-gini) assets obtained by husband and wife at the time of marriage. . This research is research with a normative juridical approach based on existing marriage laws in Indonesia, legal theory and expert opinions. The results of this research show the role of law in Indonesia in regulating supernatural divorces that occur in society to find out about the regulations for unseen divorces based on existing marriage laws in Indonesia and to be able to know and understand the legal consequences that occur for the parties carrying out unseen divorces
Pengaruh Berat Weight Roller Terhadap Daya, Torsi, dan Topspeed pada Honda Beat
Get PDFCVT (Continuous Variable Transmission) components have several components that must be considered, one of which is the roller component that is often used on the 2013 Beat automatic motorbike. The rollers found on automatic motorbikes consist of two types. The rollers have different masses on both parts. Based on the mass of the two types of rollers, a study was conducted using the experimental method, which is a form of study to find cause and effect (causal relationship) between two factors by eliminating or reducing or setting aside other interfering factors. The study was conducted to determine the effect of replacing the roller with a mass of 15 grams on power, torque and top speed on the 2013 Honda Beat motorbike. The testing tool used in this study used a dynamometer that was able to analyze the effect of roller mass on the power generated by the automatic motorbike and also the centrifugal force of the roller. The lighter the roller weight, the smaller the centrifugal force generated. However, at high engine speeds, centrifugal force will decrease faster than rollers that have a heavier weight. The torque obtained in the use of 13 gram and 15 gram rollers respectively is 9.24 Nm, 8.79 Nm obtained at 6000 rpm engine speed. While the top speed obtained from the use of 13 gram roller is 75.06 km / h in 1 second, and the top speed achieved by the 15 gram roller is 78.65 km / h in 1 second
OPTIMALITASI MEDIA TANAM UNTUK KEBERHASILAN AKLIMATISASI PLANLET TANAMAN NILAM (Pogostemon cablin Benth)
Get PDFABSTRAKFase aklimatisasi pada planlet merupakan tahap kritis dalam transisi dari lingkungan in vitro ke ex vivo. Tujuan penelitian ini adalah untuk mengeksplorasi variasi media tanam guna meningkatkan keberhasilan aklimatisasi planlet tanaman nilam (Pogostemon cablin Benth). Metode yang digunakan adalah Rancangan Acak Lengkap (RAL) Non Faktorial. Rancangan eksperimen menggunakan lima perlakuan media tanam dengan tiga ulangan. Parameter yang diamati adalah tinggi tanaman, jumlah daun, diameter batang, dan panjang akar. Hasil penelitian menunjukkan bahwa perlakuan M0: Tanah Topsoil + Cocopeat + Arang Sekam (1:1:1) berpengaruh nyata terhadap tinggi tanaman, mencapai 9.13 cm pada minggu ke-3 dan 21,13 cm pada minggu ke-8, serta menghasilkan panjang akar terpanjang. Di sisi lain, perlakuan M3: Tanah Top Soil + Cocopeat + Pasir Malang (1:1:1)  memberikan pengaruh nyata terhadap jumlah daun, dari 12.83 helai pada minggu ke-3 hingga 18.33 helai pada minggu ke-8. Perlakuan  media tanam tidak memberikan pengaruh nyata terhadap diameter batang dan panjang akar tanaman nilam. Perlakuan terbaik untuk pertumbuhan tanaman nilam secara berurut dari yang tertinggi hingga terendah adalah M0, M1, M3 dan M2. ABSTRACTAcclimatization phase of plantlets is a critical stage in the transition from the in vitro to the ex vivo environment. The aim of this research is to explore variations in planting media to increase the success of acclimatization of patchouli plantlets (Pogostemon cablin Benth). The method used was a non-factorial completely randomized design (CRD). The experimental design used five planting media treatments with three replications. The parameters observed were plant height, number of leaves, stem diameter and root length. The results show that the M0 treatment: Topsoil + Cocopeat + Charcoal Husk (1:1:1) had a significant effect on plant height, reaching 9.13 cm in the 3rd week and 21.13 cm in the 8th week, as well as producing long roots. longest. On the other hand, treatment M3: Top Soil + Cocopeat + Malang Sand (1:1:1) had a real effect on the number of leaves, from 12.83 in the 3rd week to 18.33 in the 8th week. The planting media treatment did not have a significant effect on the stem diameter and root length of patchouli plants. The best treatments for patchouli plant growth in order from highest to lowest were M0, M1, M3 and M2.Â