• Title/Summary/Keyword: Light Sensory

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Analysis of Safety Alarm Mechanism for RF -based Equipment for Casualty Protection by Railway Maintenance Vehicle

  • Jo, Hyun-Jeong;Hwang, Jong-Gyu;Yoon, Yong-Ki
    • International Journal of Safety
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    • v.9 no.2
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    • pp.29-34
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    • 2010
  • When doing maintenance works at the trackside of railway, the method which delivers information on approaching of train to maintenance workers through alarm devices such as the flag or indication light, etc., is being used by locating persons in charge of safety alarm in addition to the maintenance workers at fixed distances in the front and rear of the workplace. Workers maintaining at the trackside may collide with the train since they cannot recognize the approach of train although it approaches to the vicinity of maintenance workplace because of the sensory block phenomenon occurred due to their long hours of continued monotonous maintenance work. The clash or rear-end collision accidents between many maintenance trains called motor-cars can be occurred since there are cases where the signal systems for safe operation of motor-car such as track circuit etc. are blocked or not operated normally. We developed the new safety equipment for protection of trackside maintenance workers using radio frequency signals and bidirectional detection mechanism. The developed safety equipment must analyze the several operational mechanism for each different operation situations. In this paper the analysis results are represented.

Sensitivity Analysis According to the Presence of the Logo (로고 유무에 따른 감성 분석)

  • Yoon, Hyung-Kun;Fu, kaili;Zhou, Junjun;Zhuo, Tian
    • Science of Emotion and Sensibility
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    • v.15 no.3
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    • pp.355-366
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    • 2012
  • This paper analyses the sensory responses of Chinese female consumers towards different designs of perfume bottles with particular attention to the existence of logos on them. We used total 40 samples of the perfume bottles, 20 with logos on them and 20 without, and the results show that young Chinese female consumers prefer simple designs over complex designs that contain different types of free curves with vivid colors. In addition, the existence of logos on bottles was found not to change the responses significantly, meaning that the logos on bottles do not affect sensibility of Chinese female towards perfume bottles. A logo's impacts on the bottle depended in part on the bottle's color and shape. Overall, a perfume bottle with simple shapes and light colors became regarded as more resplendent when the logo was added, but a bottle with more complex shapes and vivid colors tended to become regarded as plainer after adding the logo. This shows that a logo serves as a conciliatory element in the impression of the whole bottle in the 'resplendent-plain' category.

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Preparation and Quality of Uncooked-Colored Wine Using Black Rice (흑미를 이용한 무증자 유색주의 제조와 품질)

  • 김순동;김미향;함승시
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.29 no.2
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    • pp.224-230
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    • 2000
  • In order to study the quality of uncooked-colored wine by using polished black rice(PBR) and glucoamylase, the mixture ration of PBR ws investigated. The growths of yeast and lactic acid bacteria, pH and alcohol concentration of the colored wine prepared by adding PBR in the range of 20 to 100% were higher than those of polished rice only, whereas the contents of residual sugars, total free amino acids and fusel oil of the colored wine were lower. The colored wine prepared by 20% PBR and that of over 80% PBR showed a light red color and a dark red, respectively. The optimal addition ratios of PBR evaluated by palatability of color and flavor, and sensory overall quality was 40 to 60%.

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The Use of Travel-Related WeChat Mini-Programs in China: An Affordance Theory Perspective

  • Cheng, Ao;Koo, Chulmo;Yoon, Hyejin
    • Journal of Smart Tourism
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    • v.1 no.2
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    • pp.37-46
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    • 2021
  • The travel-related applications on a smartphone help tourists make a reservation before their trip conveniently; use a map, direction guidance, and translation services during the travel; evaluate and recommend travel services communicating with others after their journey. This study examines the relationships among affordances and constraints provided by the mini-program, users' perceived value, and travel-related mini-program (TRMP) usage by analyzing the structural equation modeling. An online questionnaire was developed from the available scales in the published literature. A total of 651 TRMP users responded to the survey, and 448 valid responses were included for analysis. Affordance, including physical, cognitive, sensory, and functional affordance, significantly influenced the hedonic value of TRMP; utilitarian value except for cognitive affordance. There were negative relationships between unfamiliarity and both types of value. The utilitarian and hedonic value of TRMP significantly influenced both the exploitative and explorative use of TRMP. Travel-related mobile applications are dramatically increased in the tourism field. This research sheds light on TRMP usage, as a new and smart device, from a user's perspective based on the affordance theory. This study represents a valuable direction regarding the emerging travel-related online platforms in tourism.

Effect of Different Brine Injection Levels on the Drying Characteristics and Physicochemical Properties of Beef Jerky

  • Kim, Dong Hyun;Shin, Dong-Min;Lee, Jung Hoon;Kim, Yea Ji;Han, Sung Gu
    • Food Science of Animal Resources
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    • v.42 no.1
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    • pp.98-110
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    • 2022
  • Meat jerky is a type of meat snack with a long shelf life, light weight, and unique sensory properties. However, meat jerky requires a long manufacturing time, resulting in high energy consumption. In this study, beef jerky was prepared by injecting different concentrations of brine at different hot-air drying times (0-800 min). When the brine injection levels were increased to 30%, the drying characteristics of beef jerky, such as drying time and effective moisture diffusivity, were significantly improved owing to the relatively high water content and the formation of porous structures. The physicochemical properties (e.g. meat color, porosity, shear force, and volatile basic nitrogen) of the beef jerky injected with 30% brine were improved owing to the shortened drying time. Scanning electron microscopy images showed that the beef jerky structure became porous and irregular during the brine injection process. Our novel processing technique for manufacturing beef jerky leads to improved quality characteristics and shortened drying times.

Design and Implementation of Magnetic Stimulation Device Suitable for Herpes Zoster and Post Herpetic Neuralgia

  • Tack, Han-Ho;Kim, Gye-Sook;Kim, Whi-Young
    • Journal of Advanced Information Technology and Convergence
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    • v.10 no.2
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    • pp.199-214
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    • 2020
  • An important technique of the present invention is primarily to parallel light detection, self-pulse therapy after diagnosis. Herpes zoster is a disease caused by varicella zoster virus, and the virus that has been latent in the dorsal root ganglion that controls the skin segment loses its immune system and physically damages it. It is an acute skin disease in which acute pain and bullous rash occur along the sensory ganglia, which are rehab by inducers such as malignant tumors. Dorsal root ganglion after complete recovery of varicella, relapsed after incubation in brain ganglion, latent virus sometimes suppressed activity by cell mediated immunity, and in cell ganglion with reduced cellular immunity. It proliferates and destroys neurons, causing pain while forming a rash and blisters. This can reduce cell necrosis and increase the phagocytosis and enzymatic activity through the movement of ions through the cell membrane, depolarization and membrane potential change, growth factor secretion, calcium ion transfer, chondrocyte synthesis, etc., And may offer treatment options for lesions of herpes zoster and post-herpetic neuralgia (PHN).Therefore, according to the present research, the diagnosis and treatment device of treating paing for herpes zoster and post-herpetic pain can be implemented in the early stage of herpes zoster, and conventional analgesic regulation, anti-inflammatory effect, post-herpetic neuralgia.

A Study on the Sensory Characteristics and Consumer Preferences for the Development of Food Menus Using Agricultural Products in Chungju (충주 지역농산물을 활용한 메뉴 개발을 위한 관능적 특성 및 소비자 기호도 조사)

  • Jeong-Eun Yang;Hojin Lee
    • The Korean Journal of Food And Nutrition
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    • v.36 no.4
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    • pp.274-285
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    • 2023
  • This study was conducted to select representative agricultural products (4 types of fruits and 4 types of wild vegetables) in Chungju, define their sensual characteristics, derive suitable flavour-pairing and recipes for each ingredient, and use them as a cornerstone in the development of menus. For the experiment, 10 experts were selected to choose 8 representative agricultural products in Chungju, and 18 menus were selected through a flavour-pairing survey. A consumer panel (a total of 413 people, 105 in their 20s, 103 in their 30s, 103 in their 40s, and 102 in their 50s) for evaluating the characteristics of consumer preferences was selected. After the flavour-pairing survey 'sweet taste', 'light flavour', 'soft flavour', 'savoury flavour', 'familiar flavour', 'harmonious flavour', 'softness', and 'harmoniousness with food ingredients' were determined as drivers of liking, on the other hand, 'disturbance with food ingredients' and 'soybean fishy smell' were determined as drivers of disliking. The degree of consumer preference and overall acceptance were found to be related to the consumers' familiarity, suggesting that if a menu should be developed using unfamiliar local agricultural products, it should be configured with familiar recipes and seasoning methods.

Microscopic research on the olfactory organ of the Far Eastern brook lamprey Lethenteron reissneri (Pisces, Petromyzontidae)

  • Hyun-Tae Kim;Jong-Young Park
    • Applied Microscopy
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    • v.50
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    • pp.18.1-18.7
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    • 2020
  • The olfactory anatomy and histology of Lethenteron reissneri were researched using a stereo microscope, a light microscope, and a scanning electron microscope. As in other lampreys, it shows same characters as follows: i) a single olfactory organ, ii) a single tubular nostril, iii) a single olfactory chamber with gourd-like form, iv) a nasal valve, v) a nasopharyngeal pouch, vi) a sensory epithelium (SE) of continuous distribution, vii) a supporting cells with numerous long cilia, viii) an accessory olfactory organ. However, the description of a pseudostratified columnar layer in the SE and Non SE is a first record, not reported in sea lamprey Petromyzon marinus. In particular, both 19 to 20 lamellae in number and olfactory receptor neuron's quarter ciliary length of the knob diameter differ from those of P. marinus. From these results, it might be considered that the olfactory organ of L. reissneri shows well adaptive structure of a primitive fish to slow flowing water with gravel, pebbles, and sand and a hiding habit into sand bottom at daytime. The lamellar number and neuron's ciliary length may be a meaningful taxonomic character for the class Petromyzonida.

Preference and Perception of Korean Foods of Foreign Consumers by Nationality (외국인 소비자의 한식 선호도와 관능적 특성에 대한 인식 - 출신국가별 비교를 중심으로 -)

  • Lee, Jin-Young;Kim, Kyung-Ja;Park, Young-Hee;Kim, Hang-Ran
    • Journal of the Korean Society of Food Culture
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    • v.25 no.1
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    • pp.9-16
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    • 2010
  • To establish a globalization strategy for Korean food, it is important to ascertain foreign consumer's taste preferences and to evaluate their sensory perceptions of Korean food. In concert with previous studies, the most preferred food were Bulgogi and Galbi. However, respondents showed somewhat different preferences for other foods. Chinese and other Asian participants preferred Galbitang and Samgyetang, while Japanese participants preferred Pajeon, Galbitang and Japchae, and Western participants preferred Galbitang, Mandu and Bibimbap. The most preferred condiment was hot pepper paste (the representative condiment of Korea) and the least preferred one was ginger. Hot pepper paste was preferred most by Japanese participants, while Chinese participants tended not to prefer ginger and other Asian participants excepting those from China and Japan disliked vinegar most. Foreign consumers tended to consider Korean food as sweet, salty and very hot. Chinese participants considered Korean food to be 'plain' and 'light and washy' in taste, while Japanese participants considered Korean food to be 'greasy' and 'thick and sticky'. Chinese participants considered typical servings to be inadequate, while Japanese participants considered the servings as excessive.

Molecular Mechanisms of Inner Ear Development and Disease

  • Hayoung Yang;Jiho Ryu;Sungbo Shim
    • Biomedical Science Letters
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    • v.29 no.3
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    • pp.95-102
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    • 2023
  • The inner ear constitutes a complex organ responsible for auditory perception and equilibrium. It comprises diverse cellular entities operating collaboratively to perceive and transmit sensory information to the brain. Inner ear disease is a sophisticated and multifactorial scenario substantially impacting the quality of life of affected individuals. Gaining insights into the developmental process of the inner ear is crucial for diagnosing and treating inner ear diseases, which can lead to hearing loss and impaired balance. Recent research in inner ear development and associated pathophysiology has focused on several pivotal domains, including identifying new genes and signaling pathways involved in inner ear development, using stem cells for inner ear regeneration, and developing novel therapies for inner ear diseases. Recent advances in genetics research have shed new light on the fundamental etiologies of inner ear diseases, with a growing body of evidence suggesting that genetic mutations might exert a pivotal influence on the development and progression of this condition. In this review, we have delved into certain common genetic mutations linked to inner ear disorders. We also discussed ongoing research endeavors and future directions for understanding the genetic mechanisms underlying this condition and potential therapeutic avenues.