• Title/Summary/Keyword: Mate

Search Result 244, Processing Time 0.027 seconds

Precopulatory Mate Guarding, Mating System and Pairing Parental Care in Hyale rubra (Peracarida; Amphipoda; Gammaridae)

  • Kim, Sung-Han
    • Journal of Ecology and Environment
    • /
    • v.31 no.1
    • /
    • pp.17-21
    • /
    • 2008
  • Mating behaviour of the gammarid amphipod, Hyale rubra, was observed. H. rubra displayed precopulatory mate guarding: males clasped females with their gnathopods during copulation, forming a pair. Males also participated in embryo care during the incubation period. The population was small, and the sex ratio was almost equal. Energy allocation for mating effort and parental effort in the two sexes appear to be almost equal. The mating system was sequentially polygamous (or promiscuous) and there was conspicuous sexual dimorphism in the size of the gnathopod, which was used for mate guarding. However, there appears to be relatively weak sexual competition for mating opportunities despite conspicuous sexual dimorphism. H. rubra did not display territorial competition or external fertilization. Nevertheless, the male provided paternal care. Since H. rubra inhabit tide pools and live on algae, the polygamous mating system of the species can be explained by the polygyny threshold model. The evolution of mate guarding and parental care may have been favored by the species' low population density and harsh environments, an interpretation consistent with the optimality model.

MATE: Memory- and Retraining-Free Error Correction for Convolutional Neural Network Weights

  • Jang, Myeungjae;Hong, Jeongkyu
    • Journal of information and communication convergence engineering
    • /
    • v.19 no.1
    • /
    • pp.22-28
    • /
    • 2021
  • Convolutional neural networks (CNNs) are one of the most frequently used artificial intelligence techniques. Among CNN-based applications, small and timing-sensitive applications have emerged, which must be reliable to prevent severe accidents. However, as the small and timing-sensitive systems do not have sufficient system resources, they do not possess proper error protection schemes. In this paper, we propose MATE, which is a low-cost CNN weight error correction technique. Based on the observation that all mantissa bits are not closely related to the accuracy, MATE replaces some mantissa bits in the weight with error correction codes. Therefore, MATE can provide high data protection without requiring additional memory space or modifying the memory architecture. The experimental results demonstrate that MATE retains nearly the same accuracy as the ideal error-free case on erroneous DRAM and has approximately 60% accuracy, even with extremely high bit error rates.

Extractions of Chlorophyll from Spinach and Mate Powders and Their Dyeability on Fabrics (시금치와 마테 분말을 이용한 클로로필 추출과 직물 염색)

  • Yoo, Hye Ja;Ahn, Cheunsoon;Narantuya, Lkhagva
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.37 no.3
    • /
    • pp.413-423
    • /
    • 2013
  • Chlorophyll is an abundant pigment found in all green plants, algae, and cyanobacteria. This study uses methanol, acetone and water to extract spinach and mate powders in order to examine the possibility of dyeing animal fibers with chlorophyll without chemical alteration. It was shown that methanol extracts of spinach and mate powders can be effectively used to dye wool and silk fabrics if the extract is mixed with water by methanol:water 65:35 v/v. Compared to methanol extract, the acetone extract showed lower chlorophyll yield and lower dye uptake. Water was not an appropriate solvent for chlorophyll extraction and dyeing. Spinach powder showed a higher dye uptake than mate powder due to the higher chlorophyll content than mate powder. It is possible that the chlorophyll dyeing of wool and silk fabrics is due to the hydrogen bonding between the hydroxy amino acids in fiber and the carbonyl groups of chlorophyll. These carbonyl groups are on the heterocyclic ring and the methyl and ethyl side chains of chlorophyll.

A Study on Development Type Bentonite Mate Waterproofing Materials under the Influence of Salt Water (개량형 벤토나이트 매트 방수재의 염수 영향에 관한 연구)

  • Kim Yung-Buok;Kim Su-Ryon;Kwak Kyu-Sung;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • v.y2004m10
    • /
    • pp.45-49
    • /
    • 2004
  • A general bentonite mate waterproofing material applied salt pollution without particular way(it is a land reclaimed from a sea(or near by sea). Analysis showed that it(general bentonite mate) has a little resistant salt pollution and a little watertightness. There are a lot of problem before completed structure because of salt pollution. So that, they have to a sum of money to repair works. Also, to repaired a part leak water again and again. because it doesn't match for salt pollution. So, I am going to study about a bentonite mate waterproofing material in salt pollution and it will be within the range of possibility to underground structure under the salt pollution. Also, I suggest waterproofing method in salt pollution about workability, stability, economy and etc.

  • PDF

MLP: Mate-based Sequence Layout with PHRAP

  • Kim, Jin-Wook;Roh, Kang-Ho;Park, Kun-Soo;Park, Hyun-Seok;Seo, Jeong-Sun
    • Bioinformatics and Biosystems
    • /
    • v.1 no.1
    • /
    • pp.61-66
    • /
    • 2006
  • We propose a new fragment assembly program MLP (mate-based layout with PHRAP). MLP consists of PHRAP, repeat masking, and a new layout algorithm that uses the mate pair information. Our experimental results show that by using MLP instead of PHRAP, we can significantly reduce the difference between the assembled sequence and the original genome sequence.

  • PDF

Path Control for NeuroMate Robot in a Skull Drilling System (두개골 천공을 위한 NeuroMate 로봇의 경로 제어)

  • Chung, Yun-Chan
    • Journal of the Korean Society of Manufacturing Technology Engineers
    • /
    • v.22 no.2
    • /
    • pp.256-262
    • /
    • 2013
  • This paper presents a linear path control algorithm for NeuroMate robot in a skull drilling system. For the path control inverse kinematics of the robot is analyzed and a linear interpolation algorithm is presented. A geometric approach is used for solving inverse kinematic equations for the robot. Four feasible solutions are found through the approach. The approach gives geometric insights for selecting the best solution from the feasible solutions. The presented linear interpolation algorithm computes a next position considering current velocity and remaining distance to the target position. Presented algorithm is implemented and tested in a skull drilling system.

ShipMate: Marine Logistics Specialist Consultation Chatbot using Deep Learning (ShipMate: 딥러닝을 이용한 해상물류 전문상담 챗봇)

  • Hyun-Su Yu;Seo-Yeon Nam;Joo-Yeong Baek;So-Yeong Ahn;Se-Jin Hwang;Gyu-Young Lee
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2023.11a
    • /
    • pp.1092-1093
    • /
    • 2023
  • 본 논문에서는 한국무역협회(KITA)의 오픈상담 자료들을 바탕으로, 딥러닝 기술을 이용하여 구현한 해상물류 대화형 챗봇 ShipMate를 제안한다. 챗봇 ShipMate는 KoGPT2를 활용한 답변과 Doc2Vec 기반의 유사 상담사례 추천이 가능하고, 무역상담을 시간제약 없이 진행할 수 있기 때문에, 기존 해상물류 서비스의 접근성을 한층 더 높일 수 있으며 이를 실험을 통해 입증하였다.

Male Colors and Female Mate Preference in Korean Rosy Bitterling, Rhodeus uyekii (Cyprinidae: Acheilognathinae) (한국산 각시붕어 수컷의 혼인색과 암컷의 배우자 선택)

  • Jeon, Hyung Bae;Suk, Ho Young
    • Korean Journal of Ichthyology
    • /
    • v.24 no.4
    • /
    • pp.263-271
    • /
    • 2012
  • A female preference is a potentially complex function relating variation in multiple male traits with her probability of accepting the most optimal individuals as a mate. If mate preference is dominantly driven by additive fitness benefits, different females tend to be congruent in the decision of choice, whereas females will not necessarily share their mate preferences if non-additive benefits more strongly operate. Here, a sequential blocked design ($4{\times}4$) was applied to experimentally assess the relative contribution of additive and non-additive components to the female mate preference with Korean rosy bitterling, Rhodeus uyekii. In a total of 48 single stimulus presentations, behavioral elements of courtship activities were analyzed to derive the 'index of female preference'. Females showed a clear preference for males with more elaborate carotenoid colors, but mated randomly with respect to male body size and other color patterns. However, they were not individually consistent in their choice of mates, suggesting that non-additive components probably contribute to the evolution of female preference.

A Review of Combination Effects and Adverse Effects of Yerba Mate (Ilex paraguariensis) on the Treatment of Obesity (비만치료를 목적으로 마테(Yerba Mate, Ilex paraguariensis)를 함유한 복합투여물의 효과 및 부작용에 대한 고찰)

  • Ahn, Jae Hyun;Lee, Min Ho;Lee, Seung Hoon;Choi, Do Young;Lee, Jae Dong
    • Journal of Acupuncture Research
    • /
    • v.33 no.2
    • /
    • pp.135-150
    • /
    • 2016
  • Objectives : The aim of this study is to review the combination effects and adverse effects of Yerba Mate (Ilex paraguariensis) on the treatment of obesity. Methods : Four databases were searched, including Pubmed, National assembly library, RISS4u, and NDSL, for studies published before March 31, 2016 using the keywords 'yerba mate', 'Ilex paraguariensis', and those related to 'obesity'. Clinical trials, and both in vivo and in vitro studies were classified according to the following categories: publication year, nationality, types and composition of test compounds, combination effects, adverse effects, and safety. Results : A total of 16 articles (14 clinical trials, one in vivo, one in vitro) were included in the analysis. Combination effects were reported from six YGD (Yerba Mate, Guarana, Damiana, Zotrim), five Meltdown, one Shred-matrix, one DBX (DymaBurn Xtreme), one XSIII research study, and adverse effects were reported from two YGD (Zotrim), four Meltdown, one Shred-matrix and one MetEF research study. YGD and Shred-matrix increased satiety while YGD and MetEF had adverse gastrointestinal effects potentially due to guarana. Meltdown and Shred-matrix increased energy expenditure and fat oxidation and had the adverse effects of increased heart rate and blood pressure due to the thermogenic effect of caffeine and yohimbine. DBX increased resting energy expenditure but no difference was observed in respiratory exchange ratio. XSIII reduced body weight gain and food intake more than each of the extracts did on their own. Conclusion : Taken together, the combination effects and adverse effects differed according to the composition of test compounds and the ratio of ingredients. Multicomponent approaches should be used for treating multifactorial diseases such as obesity. As a general conclusion, there is a place for a combination of herbal components including yerba mate, based on the principle of Kun-Shin-Choa-Sa for the treatment of obesity.

SYNTHESIS OF STEREO-MATE THROUGH THE FUSION OF A SINGLE AERIAL PHOTO AND LIDAR DATA

  • Chang, Ho-Wook;Choi, Jae-Wan;Kim, Hye-Jin;Lee, Jae-Bin;Yu, Ki-Yun
    • Proceedings of the KSRS Conference
    • /
    • v.1
    • /
    • pp.508-511
    • /
    • 2006
  • Generally, stereo pair images are necessary for 3D viewing. In the absence of quality stereo-pair images, it is possible to synthesize a stereo-mate suitable for 3D viewing with a single image and a depth-map. In remote sensing, DEM is usually used as a depth-map. In this paper, LiDAR data was used instead of DEM to make a stereo pair from a single aerial photo. Each LiDAR point was assigned a brightness value from the original single image by registration of the image and LiDAR data. And then, imaginary exposure station and image plane were assumed. Finally, LiDAR points with already-assigned brightness values were back-projected to the imaginary plane for synthesis of a stereo-mate. The imaginary exposure station and image plane were determined to have only a horizontal shift from the original image's exposure station and plane. As a result, the stereo-mate synthesized in this paper fulfilled epipolar geometry and yielded easily-perceivable 3D viewing effect together with the original image. The 3D viewing effect was tested with anaglyph at the end.

  • PDF