Color2Hatch: conversion of color to hatching for low-cost printing

In this paper, we propose Color2Hatch, a decolorization method for business/presentation graphics. In Color2Hatch, each region represented as a closed path and uniformly colored in scalable vector graphics (SVG) is converted to a region hatched in black and white. From the characteristics of business graphics, the hatching patterns are designed to represent mainly the hue in the region; additionally, lightness and saturation can also be reflected. To discriminate subtle differences between colors, attached short line segments, zigzag lines, and wave lines are used in hatching by analogy to a clock. Compared with the existing decolorization methods, for example, grayscale conversion and texturing, our method is superior in the discrimination of regions, suitable for low-cost black and white printing that meets real-world needs.

Flexible Optimization of International Shipping Routes considering Carbon Emission Cost

Carbon emissions cost is a potential effective measure to restrict hydrocarbon pollution in the international shipping trade. The minimization of the total cost is pursued by ship operators, whereas voyage cost is increasingly involving the replacement of clean fuel and changing the cost of the shipping route. A flexible optimization method focusing on maximizing the total profit is developed in terms of sailing speed optimization and single port skips integrate carbon emission influence. An actual ocean shipping route from Shanghai to Rotterdam is applied to validate the effectiveness of the proposed models. The results have shown that the shipping route profit is volatile along with the sailing speed and the number of port calls. However, the profit will be maximized when applying the single port skip and will slow down the sailing speed at the same time. The demand of planned skip port can be supported by a short line container. A system composed of ocean container liner and short line container can improve the profit by 4.05% and reduce the carbon emission by 19.70%. Furthermore, sensitive results show that the profit is less affected by the changing of the carbon emission cost. A small size container has enough ability to solve the short transportation demand in adjacent ports and convert extraberthing cost into profit. These findings can provide reliable support for the shipping route decision process considering future carbon emission costs.

Financial and marketing analysis of pedada syrup (Sonneratia caseolaris L.) in Sei Nagalawan village, North Sumatra province, Indonesia

Sei Nagalawan village is one of the coastal villages in Perbaungan district, Serdang Bedagai regency that has the potential of mangrove ecosystems. Some fishermans in this village use pedada fruit (Sonneratia caseolaris L.) to be processed commercially into pedada syrup. Pedada syrup is marketed in mangrove tourist sites of Kampung Nypah and around Perbaungan district. This research aimed to analyze the financial feasibility, flow and marketing margins of the pedada syrup making business conducted by the Sei Nagalawan village community. The method used is quantitative descriptive analysis on the business actors processing, distribution and marketing of pedada syrup. The results showed that the business of making pedada syrup was feasible with an R/C ratio of 5, a break event point of 17 bottles and a payback period of 2 production cycles. The marketing flow of the pedada syrup business consists of 2 channels, namely the short line (direct) marketing channel and the long line marketing channel. The profit margin obtained by the producer through the short line marketing channel is IDR. 9.000,-/bottle. In the long line marketing channel, the margin obtained by producers is IDR. 6.000,-, collectors of IDR. 1,000, and retailers IDR. 2,000,per bottle.

Pemberantasan Buta Huruf Al-Qur’an pada Warga dan Komunitas Pemulung di Tempat Pembuangan Akhir Sampah (TPA) Kelurahan Karyabaru, Palembang

ERADICATING ILLITERACY OF AL-QUR'AN LETTERS ON RESIDENTS AND COMMUNITY OF SCAVENGERS AT THE FINAL WASTE DISPOSAL SITE (TPA) OF KARYABARU VILLAGE, PALEMBANG. The purpose of this community service program is to overcome literacy of the Koran in the scavenger community in the garbage dumps of Karyabaru Village, Alang-alang District, Palembang City. The method used The method used in this service is participatory action research (PAR) in the form of assistance in learning. Based on this service activity, it can be concluded that the ability of learning citizens to show an increase in writing and reading hijaiyah letters, this can be seen from the results of the evaluation at each meeting, namely: (1) the ability to write and read hijaiyah letters of learning citizens who are declared complete as many as 18 (90 %) and incomplete 2 (10%). (2) the ability to write and read changes in hijaiyah letters, namely 17 (85%) learning citizens were declared complete and 3 (15%) learning citizens were declared incomplete. (3) the ability of citizens to learn to pronounce letters correctly and fluently according to their meaning 15 (75%) learning citizens were declared complete and 5 (25%) learning residents were declared not complete, and (4) the ability of residents to learn to pronounce letters that were already marked with a long and short line according to the level in tajwid, namely there are 15 (75%) learning residents who have completed and 5 (25%) learning residents are declared incomplete.