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Uji komparasi perhitungan gerhana matahari global Muhammad Wasil dan K.H. Ahmad Ghozali
Full text linkMuhammad Wasil dan K.H. Ahmad Ghozali memiliki riwayat pernah belajar ilmu falak kepada Kiai Noor Ahmad Jepara (alm) pengarang kitab falak Nur al-Anwar. Meski begitu, Muhammad Wasil dan K.H. Ahmad Ghozali memiliki metode yang berbeda dalam memprediksi fenomena gerhana Matahari. Kedua metode perhitungan ini sering digunakan sebagai referensi dalam memprediksi fenomena gerhana Matahari, meskipun memiliki hasil akhir yang berbeda. Penelitian ini dimaksudkan untuk menjawab pertanyaan: (1) Bagaimana metode perhitungan gerhana Matahari global Muhammad Wasil dan K.H. Ahmad Ghozali? (2) Bagaimana perbandingan tingkat akurasi dari metode perhitungan gerhana Matahari global Muhammad Wasil dan K.H. Ahmad Ghozali? (3) Bagaimana kelebihan dan kekurangan dari metode perhitungan gerhana Matahari global Muhammad Wasil dan K.H. Ahmad Ghozali? Permasalahan dibahas melalui studi pustaka dengan pengumpulan data secara dokumentasi dan wawancara. Semua data dianalisis dan dikomparasikan dengan hasil NASA sebagai acuan tingkat akurasi.
Penelitian ini menyimpulkan: Yang pertama, metode perhitungan Muhammad Wasil dan K.H Ahmad Ghozali memiliki persamaan menggunakan konsep sistem koordinat ekliptika geosentrik, selain itu terdapat perbedaan antara kedua metode perhitungan meliputi konsep bentuk Bumi yang digunakan, sumber data, ketentuan delta T(∆T), dan pendekatan yang digunakan dalam metode perhitungan. Yang kedua, tingkat akurasi metode perhitungan gerhana Matahari global K.H. Ahmad Ghozali lebih tinggi daripada metode perhitungan Muhammad Wasil dalam memprediksi fenomena gerhana Matahari. Tingkat akurasi ini berdasar pada perhitungan keadaan greatest eclipse yang berdampak langsung terhadap pelaksanaan salat gerhana. Yang ketiga, metode perhitungan gerhana Matahari global Muhammad Wasil memiliki kelebihan kontak yang dihitung lebih lengkap, dapat menggambarkan peta pergerakan gerhana, tingkat akurasi lebih tinggi dalam perhitungan kontak umbra, sedangkan terdapat kekurangannya, yaitu sulit diimplementasikan tanpa bantuan program sebagai alat bantu. Pada metode perhitungan gerhana Matahari global K.H. Ahmad Ghoazali memiliki kelebihan diantaranya metode perhitungan lebih praktis, memiliki tingkat akurasi tinggi untuk kontak penumbra dan puncak gerhana (greatest eclipse), sedangkan kekurangannya, yaitu akurasi rendah dalam perhitungan kontak umbra gerhana Matahari global.
Kata Kunci: Muhammad Wasil, K.H. Ahmad Ghozali, gerhana Matahari global
ABSTRACT:
Muhammad Wasil and K.H. Ahmad Ghozali has a history of studying astronomy with Kiai Noor Ahmad Jepara (deceased), author of the book of astronomy Nur al-Anwar. Even so, Muhammad Wasil and K.H. Ahmad Ghozali has a different method for predicting the phenomenon of a solar eclipse. These two calculation methods are often used as references in predicting solar eclipse phenomena, even though they have different final results. This research is intended to answer the questions: (1) What is the method for calculating global solar eclipses by Muhammad Wasil and K.H. Ahmad Ghozali? (2) What is the comparison of the level of accuracy of the global solar eclipse calculation method of Muhammad Wasil and K.H. Ahmad Ghozali? (3) What are the advantages and disadvantages of the global solar eclipse calculation method Muhammad Wasil and K.H. Ahmad Ghozali? Problems are discussed through literature study by collecting data through documentation and interviews. All data is analyzed and compared with NASA results as a reference for accuracy levels.
This research concludes: Firstly, the calculation methods of Muhammad Wasil and K.H Ahmad Ghozali have similarities using the concept of a geocentric ecliptic coordinate system, apart from that there are differences between the two calculation methods including the concept of the shape of the Earth used, data sources, provisions for delta T(∆T), and the approach used in the calculation method. Second, the level of accuracy of the global solar eclipse calculation method K.H. Ahmad Ghozali's calculation method is higher than Muhammad Wasil's in predicting the phenomenon of a solar eclipse. This level of accuracy is based on calculating the state of the greatest eclipse which has a direct impact on the implementation of eclipse prayers. Third, Muhammad Wasil's method for calculating global solar eclipses has the advantage of contacts being calculated more completely, being able to depict a map of the movement of the eclipse, a higher level of accuracy in calculating umbral contacts, while there are disadvantages, namely that it is difficult to implement without the help of a program as a tool. In the calculation method for global solar eclipses, K.H. Ahmad Ghoazali has advantages, including a more practical calculation method, having a high level of accuracy for penumbral contact and the peak of the eclipse (greatest eclipse), while his disadvantages are low accuracy in calculating umbral contact for global solar eclipses.
Keywords: Muhammad Wasil, K.H. Ahmad Ghozali, global solar eclipse
الملخص
محمد واصل وكياي الحاج أحمد غزالي لهم تاريخ في دراسة علم الفلك مع كياي نور أحمد جيبارا (متوفى)، مؤلف الكتاب الفلكي نور الأنوار. ومع ذلك، فإن محمد واصل وكياي الحاج أحمد غزالي لديهما طرق مختلفة للتنبؤ بظاهرة كسوف الشمس. غالبًا ما يتم استخدام هاتين الطريقتين الحسابيتين كمراجع في التنبؤ بظواهر كسوف الشمس، على الرغم من اختلاف نتائجهما النهائية. يهدف هذا البحث إلى الإجابة على الأسئلة التالية: (1) ما هي طريقة حساب كسوف الشمس العالمي لمحمد واصل وكياي الحاج أحمد غزالي؟ (2) كيف يمكن مقارنة مستوى دقة طرق حساب كسوف الشمس العالمي لمحمد واصل وكياي الحاج أحمد غزالي؟ (3) ما هي مميزات وعيوب طريقة حساب كسوف الشمس العالمي لمحمد واصل وكياي الحاج أحمد غزالي؟ تتم مناقشة المشاكل من خلال دراسة الأدبيات من خلال جمع البيانات من خلال الوثائق والمقابلات. ويتم تحليل جميع البيانات ومقارنتها بنتائج وكالة ناسا كمرجع لمستويات الدقة.
ويخلص هذا البحث إلى ما يلي: أولاً، هناك أوجه تشابه بين طريقتي الحساب لمحمد واصل وكياي الحاج أحمد غزالي باستخدام مفهوم نظام الإحداثيات الكسوف لمركز الأرض، عدا عن ذلك هناك اختلافات بين طريقتي الحساب بما في ذلك مفهوم شكل الأرض المستخدم. ومصادر البيانات وأحكام دلتا T(∆T) والنهج المستخدم في طريقة الحساب. ثانيا، مستوى دقة طريقة حساب كسوف الشمس العالمي لكياي الحاج أحمد غزالي أعلى من طريقة حساب محمد واصل في التنبؤ بظاهرة كسوف الشمس. ويعتمد هذا المستوى من الدقة على حساب حالة الكسوف الأكبر الذي له تأثير مباشر على تنفيذ صلاة الكسوف. ثالثا، تتميز طريقة محمد واصل لحساب كسوف الشمس العالمي بميزة احتساب الاتصالات بشكل أكثر اكتمالا، والقدرة على تصوير خريطة لحركة الكسوف، ومستوى أعلى من الدقة في حساب الاتصالات الظلية، في حين أن هناك عيوب، وهي أن فمن الصعب تنفيذها دون مساعدة البرنامج كأداة. تتميز طريقة كياي حاج أحمد غزالي لحساب كسوف الشمس العالمي بمزايا، بما في ذلك طريقة حسابية أكثر عملية، وجود مستوى عالٍ من الدقة في الاتصال شبه الظلي وذروة الكسوف (الكسوف الأكبر)، في حين أن العيب هو انخفاض الدقة في حساب الاتصال الظلي لكسوف الشمس العالمي.
الكلمات المفتاحية: محمد واصل، أحمد غزالي، كسوف الشمس العالمي
Going Beyond Counting First Authors in Author Co-citation Analysis
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counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
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koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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