Activities in the Secondary School

In this chapter there is the presentation of a vertical path on the main topics of arithmetic-algebra-infinitesimal calculus and numerical methods, which are an object of study in the secondary school. Naturally, the attention will be focused on the “virtual” phase, that is the applications with the computer and the MatCos 3.X environment, both as graphical-numerical experimentation, of intuitive support to the understanding of the concepts, that as a necessary moment for the actual calculation in the applications. It presents a TLS based on a real problem, from which the whole presented methodology shines through: from problem solving, to mathematical and numerical modeling, to the formulation of the solving algorithm and its implementation in the MatCos 3.X environment.

Storm Surge Risk Assessment for Non-Life Insurance

This chapter introduces the efforts of the storm surge risk assessment for non-life insurance especially focusing on Japan. First, the importance of storm surge risk assessment in non-life insurance, the requirements for storm surge risk assessment in insurance, and an overview of the natural disaster model that evaluates them are described. Second, study on stochastic storm surge risk assessment, study on storm surge hazard modeling, study on vulnerability modeling which convert hazard intensity into damage are presented. Third, as an actual calculation example, the results of applying the procedure with low calculation load presented by past study to Tokyo Bay are shown. As a result, it is confirmed that the procedure can reduce the calculation load and maintain the calculation accuracy. Finally, how to select the existing storm surge risk assessment procedures when risk assessment is actually performed for the insurance purposes is considered.

Akurasi Aplikasi Penghitung Langkah (Pedometer) Pada Smartphone Berbasis Android

The purpose of this study is to determine the accuracy of the Android-based step counter application to provide an overview of the accuracy in step counting. This research is a descriptive research. The population in this study is Universitas Nahdlatul Ulama Sidoarjo Jurusan Pendidikan Guru Sekolah Dasar students year 2017 amounting to 82 students. The results showed that the step counter application (pedometer) on an Android-based smartphone is not accurate. Of the five applications, the average number of steps detected is not the same as that done by respondents. Application 1 records the steps taken outdoors 7.40% higher than the actual calculations and 0.77% lower than the actual calculations performed outdoors. Application 2 records a higher step both outdoors and indoors, which is 4.92% and 0.73%. Application 3 records steps taken outdoors 0.69% higher and indoor ones 1.79% lower than the actual calculation. Application 4 records the steps taken outdoors 0.33% higher than the actual calculation and 4.80% lower in the room than the actual calculation. Application 5 records lower than the actual calculation of 6.50% outdoors and 10.85% indoors.Keywords: Pedometer, Step Counter Application, Smartphone, Android, Accuration AbstrakTujuan penelitian ini untuk mengetahui akurasi aplikasi penghitung langkah berbasis android untk memberikan gambaran tentang akurasi dalam penghitungan langkah. Penelitian ini merupakan penelitian deskriptif. Populasi dalam penelitian ini adalah Mahasiswa Universitas Nahdlatul Ulama Sidoarjo Jurusan Pendidikan Guru Sekolah Dasar angkatan 2017 berjumlah 82 mahasiswa. Hasil penelitian menunjukkan bahwa aplikasi penghitung langkah (pedometer) pada smartphone berbasis android tidak akurat. Dari kelima aplikasi tersebut rata-rata mendeteksi jumlah langkah tidak sama dengan yang dilakukan oleh responden. Aplikasi 1 mencatat langkah yang dilakukan di luar ruangan 7.40% lebih tinggi dari perhitungan sebenarnya dan 0.77% lebih rendah dari perhitungan sebenarnya yang dilakukan diluar ruangan. Aplikasi 2 mencatat langkah lebih tinggi baik yang di luar ruangan maupun yang di dalam ruangan yaitu sebesar 4.92% dan 0.73 %. Aplikasi 3 mencatat langkah yang dilakukan di luar ruangan 0.69% lebih tinggi dan yang di dalam ruangan 1.79% lebih rendah dari perhitungan sebenarnya. Aplikasi 4 mencatat langkah yang dilakukan di luar ruangan 0.33% lebih tinggi dari perhitungan sebenarnya dan lebih rendah 4.80% di dalam ruangan dari perhitungan sebenarnya. Aplikasi 5 mencatat lebih rendah dari perhitungan sebenanrnya yaitu 6.50% di luar ruangan dan 10.85% di dalam ruangan.Kata kunci: Pedometer, Aplikasi Penghitung Langkah, smartphone, android, akurasi

Production of monopoles: A theoretical attempt

The production of a monopole–antimonopole pair through electromagnetic interaction is considered. The particular process considered involves the annihilation of a pair of leptons into photons and the subsequent formation of the MA pair. The actual calculation involves some approximations but no expansion in coupling constant.

Research on Performance Evaluation and Performance Budget of Fiscal Expenditure with Information Technology

The finance is the key factor in the operation of the market economy, and how to specifically evaluate the fiscal expenditure performance and the budget is a very important problem. This paper describes the effect of fiscal expenditure on the performance evaluation in detail, minutely researches the actual calculation process for performance budget, discusses the problems in the evaluation system according to the contents above, and offers the targeted suggestions to how the performance budget should reform.

A note on a singular integral equation

In his treatise entitled Introduction to the theory of Fourier integrals, E. C. Titchmarsh derives a Fourier transform of the solution of the integral equationThe transform of the solution given by him does not satisfy the Riemann-Lebesgue lemma, and further suffers from the defect that it has certain exponential properties which prevent the actual calculation of the function φ(ξ), since the inversion integral does not exist for all ξ > 0. We shall correct these defects and show further that the solution of (1) is particularly simple and that it can be expressed as the Legendre function of an order which depends on λ.

IV.—Studies in Clocks and Time-keeping: No. 6. The Arc Equation

The isochronism of a pendulum is only true to a first approximation. If we make the arc large, the period increases, reaching infinity just before the pendulum makes complete circuits. Assuming the full value of the Circular Error, the actual calculation is given in No. 2 of this series (Proc. Roy. Soc. Edin., vol. xxxviii, 1918, p. 169) for the first few degrees, where it is seen that even with variations that may occur in practice, the change of daily rate may easily amount to several seconds. The defect was recognized before regulation of pressure and temperature were considered feasible, as early, for instance, as in 1673, when Huygens published his Horologium Oscillatorium. In fact Huygens invented the cycloid to prevent it, and gave an ingenious device to make the pendulum describe true cycloids—a device that has been given up for various reasons, among others, that it involves disturbance of the pendulum which it is very desirable to avoid.