Noor Saif Muhammad Mussafi

• Doctor of Philosophy
• Lecturer at Sunan Kalijaga State Islamic University Yogyakarta

Distribution is the process of distributing goods from source to destination. The main problem with distribution is the inefficiencies in distribution costs. The distribution problem can be solved by transportation methods. The transportation method is carried out in two stages, namely finding the initial solution then looking for the optimal solut...

Article History: The short interval between the collecting and distribution of zakat al-fitr is a recurring issue. As a result, 'amil does not always pay attention to the ideal route, leading in inefficient transportation expenditures. This study aims to minimize the amount of vehicle mileage that affects fuel consumption. The branch-and-bound algo...

One of the essential concerns of investors of all time is to choose the best investment opportunities to capitalize on the value of their investment in stocks. Its objective is to minimize risk and at the same time also maximize return. This refers to portfolio optimization as the procedure of choosing the weights of a number of stocks to be includ...

Risk-adjusted return is believed to be one of the optimal parameters to determine an optimum portfolio. A risk-adjusted return is a calculation of the profit or potential profit from an investment that takes into account the degree of risk that must be accepted to achieve it. This paper presents a new procedure in portfolio selection and utilizes t...

The research system and ranking system in universities have long followed the standards set by the higher education system that originated in the western world. Developing countries such as Malaysia and Indonesia follow a system that has existed in western higher education, even since the era of colonialism. Occupation of countries such as the Neth...

This research seeks to analyze the development of syariah stock optimization method using Nonlinear Programming in order to provide an optimal portfolio as a reference in improving the quality of syariah capital market in Indonesia. The research design used is descriptive qualitative by presenting a Shariah stock history data within a certain perio...

Red Ginger is a spice commodities are still very much needed by the industry in Indonesia. But in fact the production capability has not been able to meet the needs of the market. Therefore, efforts should be made or engineering for the processing and maintenance of red ginger in order to increase the quantity and quality of the crop appropriate qu...

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alter...

Antrian pada jasa perbankan syariah merupakan suatu permasalahan yang berkaitan dengan kenyamanan nasabah. Sistem antrian yang efisien dengan sendirinya dapat meningkatkan kepuasan nasabah dan tentunya akan berimbas pada kualitas kinerja perusahaan. Penelitian ini bertujuan untuk menganalisis karakteristik antrian, distribusi pola kedatangan dan po...

Cutting stock problem is the problem of cutting standard-sized pieces of stock material, such as vinyl rolls (synthetic leather) into pieces of specified sizes while minimizing material wasted. The study of cutting stock problem is expected to provide an alternative solution to publishing industrial. This study examines the cutting stock problem ba...

Pendistribusian produk berperan penting dalam dunia industri. Salah satu usaha yang dapat dilakukan perusahaan untuk mengoptimalkan pendistribusian produk adalah meminimalkan biaya tranportasi melalui penentuan rute optimal kendaraan yang disebut dengan VRP (Vehicle Routing Problem). Tujuan dari VRP adalah menentukan rute optimal yaitu rute dengan...

Map coloring is the process of coloring on areas such that any two adjacent areas directly will have a different color. In this case the required color will be as many as the number of specific areas in the city that can cause inefficient. Therefore, it should be examined how the determination of the colors on the map with the minimum number of col...

This study sought to determine and analyze the development of Islamic stock optimization method using Nonlinear Programming principles in order to provide alternative optimal portfolio can be used as a reference in improving the quality of Islamic capital market in Indonesia. The data in this study is the Islamic stock price incorporated in the Jak...

Abstract. In the middle ages, Muhammad Al-Idrisi as a Moslem Cartographer was drawn an incredible map that written in Arabic called Tabula Rogeriana for the Norman King Roger II of Sicily. The study of graph coloring in particular the Welsh-Powell algorithm is expected to provide an alternative perspective to such map. This study examines the discr...

Semakin meningkatnya kompetisi global menuntut setiap perusahaan untuk meningkatkan kualitas serta efektifitas kinerja karyawannya yang pada akhirnya diharapkan dapat meningkatkan keuntungan. Penempatan sejumlah X karyawan pada Y pekerjaan dimana masing-masing karyawan mempunyai kompetensi untuk menyelesaikan semua pekerjaan dengan mempertimbangkan...

Kasus kebakaran di Indonesia, khususnya Kota Yogyakarta dari tahun ke tahun masih menunjukkan angka yang tinggi. Hal ini mengakibatkan kerugian yang cukup tinggi bagi korban kebakaran. Untuk meminimalisasi terjadinya korban jiwa dan kerugian secara material saat terjadi kebakaran, maka pihak pemadam kebakaran mengupayakan melalui rute terpendek unt...

Traffic congestion is a problem which is often found in big cities in Indonesia. This requires a range of solutions, one of them with the settings of the traffic light. Traffic light arrangement can be completed with graph theory. Part of graph theory a graph coloring is used. Staining graf three i.e. coloring is differentiated into a knot, stainin...

Kombinatorika merupakan salah satu materi dasar yang penting dalam memahami penerapan Matematika khususnya di bidang komputasi. Untuk itu buku ini dilengkapi dengan dasar-dasar logika, kaidah pencacahan, analisis kombinatorika, dan pemodelan. Sebagai pelengkap aplikasi struktur diskrit, buku ini juga memuat pengantar teori graf. Oleh karena itu bag...

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to...

Given a finite set K of terminals in the plane. A rectilinear Steiner minimum tree for K (RST) is a tree which interconnects among these terminals using only horizontal and vertical lines of shortest possible length containing Steiner point. We show the complexity of RST i.e. belongs to NP-complete. Moreover we present an approximative method...