• 한국환경과학회지
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• 제32권11호
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• pp.857-860
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• 2023

We investigated the fecal properties and hemoglobin levels in dogs fed with general canine diets and 7 black soldier fly-based companion canine diets. A total of 16 dogs, including 8 poodles (average weight 2.7±0.5 kg) and 8 bichon frises (average weight 2.0±0.5 kg) were used in this study. The changes in fecal properties of all treatments at 0 weeks and 2 weeks showed no significant differences (p>0.05). However, at 4 weeks, compared to the control group, all black soldier fly-based companion canine diets have an effect on fecal properties (p<0.05). Hemoglobin levels in all treatments were within the normal range. Therefore, feeding black soldier fly-based diets to canines affected the fecal properties and the hemoglobin level was not of clinical concern since it was within the desired reference intervals for healthy canines, indicating that the effect of iron supplementation and anemia prevention was not observed.

• International Journal of Industrial Entomology and Biomaterials
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• 제33권2호
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• pp.92-95
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• 2016

The black soldier fly is economically important because its prepupae are used as feed for many animals, including fish and swine. In Korea, black-soldier-fly farms have attempted to increase annual breeding and mass egg production for use in animal feed, as well as the decomposition of organic waste. Such efforts require an understanding of optimal mating and oviposition techniques. Specifically, adult densities and cage size may both improve the efficiency of mass egg production. Our study used four sizes of nylon cages ($1.0{\times}1.0{\times}2.5m$, $1.5{\times}1.5{\times}2.5m$, $2.0{\times}2.0{\times}2.5m$, $2.5{\times}2.5{\times}2.5m$) and three density treatments (4 kg, 8 kg, and 10 kg of pupae) to investigate optimal habitat size and adult density. We found that cage size (independent of density) did not significantly influence female fecundity (number of egg clutches and egg weight), whereas higher densities increased egg number and weight regardless of cage size. Thus, we recommend manipulating adult density to enhance productivity in commercial black-soldier-fly farming. However, we also propose further detailed research to develop methods that account for seasonal changes and environmental conditions, as climatic variables (temperature, sunlight) likely influence female fecundity as well.

• 시큐리티연구
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• 제43호
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• pp.147-175
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• 2015

앞으로 여성공무원 수 증가와 함께 여성공무원의 파워가 더욱 거세질 것으로 보인다. 이러한 시대적 변화에 발맞추기 위해 최근 여군, 여경의 선발이 증가하고 있으며 군 경찰 내부조직에서도 여성인력을 효율적으로 운영하려는 움직임이 증가하고 있다. 본 연구는 특정직 여성인력 중에서도 대표적인 여군과 여경을 면밀하게 분석하여 보다나은 직무수행능력을 향상시키는 방향을 제시하고자 하는데 목적이 있다. 여군과 여경은 남성이 대다수인 조직 내에서 소수인원으로 많은 어려움을 겪고 있으며 근무하고 있다. 우수한 여성인력의 활발한 사회진출을 위한 변화의 흐름에 발맞추어 군대와 경찰도 적극 노력해야 할 것이다. 더구나 일반직 여성인력과는 다르게 여군과 여경은 특수한 성향을 띠고 있는 조직 내에서 업무를 수행하고 있는 만큼 정책적인 지원과 관심이 필요하다.

• International Journal of Industrial Entomology and Biomaterials
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• 제35권2호
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• pp.100-105
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• 2017

Under natural conditions, black soldier fly, Hermetia illucens (L.) (Diptera: Stratiomyidae), colonizes in warm temperate regions, and is active in Korea from May through October. Information on black soldier fly rearing, which is affected by seasonal factors in Korea, is limited. Oviposition by black soldier flies is dependent on light intensity and wavelength. Therefore, continuous mass rearing of this fly requires determination of optimal artificial conditions of illumination. In this study, we compared the number of eggs laid under an artificial light source (750 watt HPL lamp) versus nature sunlight. Our results showed that compared to oviposition under natural sunlight, the use of one or two lamps for 7 hours, resulted in only 43 and 76%, of the total number of eggs laid under natural sunlight, respectively. We also investigated the hatchability of oviposited eggs under artificial illumination and under natural sunlight. The hatching rate under the former was much significantly lower than under the latter. Further detailed research is required to develop methods for successful mass rearing of black soldier fly throughout the year by means of an indoor system.

• 한국군사과학기술학회지
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• 제23권2호
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• pp.139-146
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• 2020

The camouflage pattern was difficult to distinguish from the surrounding background, so it was difficult to classify the object and the background image when the color image is used as the training data of deep-learning. In this paper, we proposed a red-green color blindness image transformation method using the principle that people of red-green blindness distinguish green color better than ordinary people. Experimental results show that the camouflage soldier's recognition performance improved by proposed a deep learning model of the ensemble technique using the imitated red-green-blind image data and the original color image data.

• 한국지반공학회논문집
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• 제16권2호
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• pp.5-12
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• 2000

The hazard of excavation may be very high until a supporting system is completely installed. In this paper, an excavation method which uses partially reinforced soldier pile($\square$-shape) inserted by a short length steel bar was proposed and simulated by the finite element method. The reinforcing steel bar is moved down along the stage of excavation to reinforce the stiffness of the supporting system. The result of analysis showed that the risk of failure by bending moment or shear stress could be significantly reduced by the reinforcing effect of the steel bar. The proposed method could be applied to the strut-supporting wall or the diaphragm wall.

• 한국군사과학기술학회지
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• 제14권2호
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• pp.167-172
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• 2011

In this paper, a study on variation of an accuracy rate as the gradient of a rifle is shown. In the a state of hostilities, a soldier is not easy to take a shot vertically against the ground. If a soldier shoots as the pistol is inclined, how the accuracy rate is changed. While the pistol is shot, the change of ballistic curve is estimated. And we also verify the accuracy rate through the firing test. Then we compare two results and present some ideas which overcome the decrease of an accuracy rate. Hereafter, it is possible to adapt in the future soldier system and expected that the accuracy rate of the conventional gun is maintained.

• 한국군사과학기술학회지
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• 제16권6호
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• pp.841-846
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• 2013

Recently, personal health monitoring system using intelligent biosensors and equipments has been realized. This system can be adopted for soldier's biosignal monitoring system. In this paper, we propose a soldier biosignal monitoring system using personal biosensors, such as the ECG sensors and accelerometer.

• Mycobiology
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• 제44권4호
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• pp.310-313
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• 2016

While surveying the diversity of fungi of the order Mucorales, two isolates, EML-PUKI12-1 and EML-PUKI06-1, were obtained from the gut of soldier fly larvae inhabiting the bulrush at a pond located in the Chonnam National University Arboretum, Gwangju, Korea. The isolates were confirmed as Mucor irregularis and Mucor fragilis species, respectively, based on the morphological characteristics and phylogenetic analysis of rDNA internal transcribed spacer region. Such mucoralean species belonging to undiscovered taxa has not previously been described in Korea.

• 대한건축학회논문집:구조계
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• 제35권3호
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• pp.19-25
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• 2019

The purpose of this study was to evaluate bending performance of concrete filled soldier pile for temporary retaining wall. Structural performance tests were conducted on total number of four specimens. Each specimen had a unique characteristics with combination of the following variables, existence of reinforcing bar and locations of reinforcing steel plates. The results of this study were as follows; concrete filled steel tubes with being reinforced bar and flange rather than non-bar showed better performance. Higher yield, tensile strength and sufficient plastic strain were archived and maximum moment observed in experiments exceeded theoretical maximum moment in both allowable stress design and limit state design at all specimens.