6,162 research outputs found
Le Tan et le Temps
No full textSi la réduction de la longue durée du tannage végétal et la recherche des nouveaux agents tanniques constituaient la principale préoccupation des innovateurs de l’industrie du cuir dès le XVIIIe siècle, la devise des tanneurs français était encore au début du XXe siècle : « Pour avoir du bon cuir, il faut du tan et du temps ». Ces deux facteurs sont responsables de l’inertie technique : le tan (écorce de chêne) appliqué en grande quantité et le temps, excessivement long (deux à trois ans) investi dans les opérations de tannage, pour ce secteur-clé de l’industrie française, si peu étudié jusqu’ici. Par l’examen des diverses techniques de tannage et du rôle des emprunts techniques venant de l’étranger, l’auteur tente de dégager les principaux axes technologiques de la transformation de la peau en cuir.Tan and time. Technical change and historical dimension of tanning in France (14th-18th centuries)The reduction of the extreme length of vegetal tanning and the search for new tannic agents were the major preoccupations of the leather industry since the 18th century. However, even at the beginning of the 20th century, the motto of French tanners was still : « To get good leather, you need tan and time ». Two elements therefore were responsible for the technical inertia of this little-known key-sector of the the French industry : tan (oak-tree bark) used in great amount and time, excessively long (up to three years). Examining various tanning methods and the role played by the introduction of techniques from abroad, the author outlines the main technological axes of the conversion of raw hide into leather.El tanino y tiempo. Cambio técnico y dimensón histórica en el curtido en Francia (S. XIV-XVIII)Si la principal preocupación de los innovadores en la industria del cuero, a partir del siglo XVIII, fue reducir la larga duración que comportaba el proces de curtido mediante productos de origen vegetal, e investigar acerca de nuevos agentes « tanínicos », la divisa de los curtidores franceses a principios del siglo XX aún era : « Pare conseguir buen cuero hace falta tiempo y tanino ». Ambos factores son responsables de la inercia técnica en este sector clave de la industria francesa que hasta ahora ha sido tan poco estudiado : el tanino (extraído de la corteza del roble) aplicado en grandes cantidades, y el tiempo excesivamente largo (de dos a tres años) que se invertía en las operaciones de curtido. A travès del examen de las diversas técnicas de curtido, y del papel desempeñado por las innovaciones técnicas que provenían del extranjero, la autora intenta desentrañar los técnicos principales de la transormación de la piel en cuero
Development of driver assistant system part I
No full textOver the years, the advancement of technology has been rapid and this creates convenience in our daily life. For instance, the invention of automobile has helped to reduce the time spent, travelling from one place to another. However it has led to injury and even fatality when drivers are not careful. Accidents happen when drivers are unaware of the surroundings, due to laziness, complacency of their skills or feeling fatigue.
Through the development of Driver Assistant System (DAS), 4 sensors are installed at left, right, front as well as at the rear of the vehicle respectively. These sensors will help to determine whether to speed up or slow down the vehicle and send a text message to alert the driver through his/her mobile phone.
The aim of this report is to outline what the author had done and achieved throughout the project phase. This includes from purchasing the hardware components to the implementation and testing phase of DAS, and the searching of the tools that were required for the completion of this project.
In conclusion, due to the complexity of implementation on the actual vehicle as well as time constraint, the author has designed a simulation software to conduct appropriate tests to obtain the results needed in this project.Bachelor of Engineerin
[[alternative]]The Effect of Wai Tan Kung Exercise on Energy Expenditure And Heart Rate Variability
No full text[[abstract]]The Effect of Wai Tan Kung Exercise on
Energy Expenditure And Heart Rate Variability
Graduate student: Cheng-Kun Wu
Advisor: Cheng-Chung Lin ,Ph.D.
Abstract
The purpose of the present study was to investigate the effect of long-term Wai Tan Kung exercise on heart rate (HR), energy expenditure, oxygen uptake (VO2), ventilation (VE), heart rate variability and blood pressure. Two different groups of older adults were recruited. One group subjects (n =16; 65.0 ± 4.2 yrs, 163.3 ± 7.3 cm, 63.3 ± 7.3 kg) had been participated at least 10 years of regular Wai Tan Kung exercise (long-term group, LTG), and the other (n = 16; 59.0 ± 3.7 yrs, 162.0 ± 3.9 cm, 65.7 ± 3.6 kg) had been participated as same exercise as LTG but less than one year (short-term group, STG). The results of this study showed that there were significant differences (p < .05) in rest systolic pressure, and HR, energy expenditure, VO2, VE, high frequency power (HFP) and low frequency power (LFP) during exercise between LTG and STG (p < .05). LTG subjects had a significant lower in rest heart rate and blood pressure (p < .05) than STG subjects, and the former also reached higher (p < .05) exercise intensities during exercise testing than the latter. Moreover, there were significant higher heart rate, VO2 and VE during exercise testing for LTG than STG, suggesting that LTG subjects had higher metabolic rate. Additionally, LTG had a higher HFP than STG, suggesting that there was a significant increase in parasympathetic division of autonomic nervous activity during exercise testing for LTG than STG, indicating LTG subjects may prevent from coronary artery disease and improve functions of the heart. It is concluded that older adults participate in regular long-term of Wai Tan Kung exercise have a positive effect on their cardiovascular fitness. Therefore, such kind of exercise may especially fit for older adults.
Key words: oxygen uptake (VO2), ventilation (VE), heart rate, heart rate variability, Wai Tan Kung exercise.
Danielle Tan : Chinese Engagement in Laos [ISEAS - Publication en ligne]
No full text[ndlr] Nouvelle publication en ligne sur le Laos de notre collègue Danielle Tan. Chinese Engagement in Laos: Past, Present, and Uncertain Future By Danielle Tan Executive Summary During the colonial period, Laos welcomed the smallest overseas Chinese communities in Southeast Asia, communities that almost disappeared after the communist forces seized power in Laos in 1975. Yet, this landlocked country shares a long history with China and even experienced a Golden Age thanks to the thrivi..
Danielle Tan : Chinese Engagement in Laos [ISEAS - Publication en ligne]
No full text[ndlr] Nouvelle publication en ligne sur le Laos de notre collègue Danielle Tan. Chinese Engagement in Laos: Past, Present, and Uncertain Future By Danielle Tan Executive Summary During the colonial period, Laos welcomed the smallest overseas Chinese communities in Southeast Asia, communities that almost disappeared after the communist forces seized power in Laos in 1975. Yet, this landlocked country shares a long history with China and even experienced a Golden Age thanks to the thrivi..
LONG Yingzong 龍瑛宗, « Le petit bourg aux papayers »〈植有木瓜樹的小鎮〉(1937)
No full textTraduction du chinois vers le français de la nouvelle « Zhiyou muguashu de xiaozhen
Values and longevity in family business: Evidence from a cross-cultural analysis
No full textThe link between longevity and values has been pointed out by several authors, who have underlined values as an important factor for supporting a long-term vision, as well as a source of competitive advantage based on using values as specific company resources. Nevertheless, not many empirical works have dealt with this topic. The present paper aims to shed light on this stream of research by developing a cross-cultural analysis, contrasting samples from Spain, Italy, France and Finland.Longevity; family business; values;
Long-term and short-term effects in the perturbative regime.
No full textThe effect of a third species on a pair of species {1, 2} with small interaction parameter a ≠ 0 and other interactions vanishing in Eq (S7) in S5 Appendix. In Panel (A), black line is the perturbative theoretical prediction for the long-term effects (LE) Eq (S8) in S5 Appendix, and blue dots are exact analytic values of LE. Red dots are simulated short-term effects (SE), for extinction threshold η = 0.0001 and time T = 100, using 125,000 environmental conditions θ uniformly distributed on the unit sphere and initial conditions with all populations at 0.5. This example illustrates the general trend that LE >1 (1). Panel (B) depicts the set of initial conditions where the persistence of species {1, 2} differs in the presence or absence of the third species {3} over the finite time simulations, in the case a = 0.01, illustrating the shape expected from the theoretical analysis. Detailed pattern of points reflects sampling choice over sphere (grid points uniformly spaced in θ3, tan−1(θ2/θ1)); extinction boundary is localized near θ1 ∼ −0.06 ∼ (ln η)/T (up to finite shift of ln η, T from initial conditions), and expands in width roughly as θ3 as predicted. Please refer to S5 Appendix for more details. (PDF)</p
Towards Sustainable Composting of Source-Separated Biodegradable Municipal Solid Waste—Insights from Long An Province, Vietnam
No full textInadequate municipal solid waste (MSW) management has become a pressing concern, resulting in significant environmental contamination, particularly in developing countries. Composting has demonstrated its practicality and feasibility for addressing this issue; however, the lack of at-source solid waste separation remains a major challenge. As a result, in this study, the first sustainable MSW separation at source was conducted in Tan An City, Long An Province. The objective of this study was to evaluate the compost process and quality using Tan An City’s separated biodegradable organic solid waste as the raw material, through a windrow composting process with active aeration. Biodegradable organic waste, slow-biodegradable organic waste and plastic waste accounted for 84.5%, 15.1% and 0.4%, respectively, of the total waste. The pH, moisture, volatile solid percentage, total nitrogen, total organic carbon and carbon-to-nitrogen ratio of the separated solid waste were 8.7 ± 0.4, 76.8 ± 1.9%, 68.3 ± 1.3%, 2.1 ± 0.1%, 35.7 ± 2.2% and 17 ± 0.8, respectively. Rice straw was mixed with solid waste as a bulking material in a 31%:69% ratio to achieve a moisture content of 55% in the mixture. After 10 weeks, an evaluation of the compost’s quality revealed its potential suitability for agricultural applications. Notably, Salmonella was not detected in the compost, and the heavy metal levels were below standard limits, indicating the safety of the compost. To ensure optimal nutrient levels for effective plant growth, a slight nitrogen and phosphorus supplement was recommended. Aligned with the C/N ratio of 12.1 and a consistent temperature of approximately 29 °C, this indicates a high degree of maturity and stability in the composting process. The framework of this study demonstrates the effectiveness of at-source MSW separation in paving a sustainable path for MSW management
Miriatroides luna Tan & Storozhenko 2023, sp. nov.
No full text<i>Miriatroides luna</i> Tan & Storozhenko, sp. nov. <p>(Figs. 15, 16)</p> <p> <b>Material examined.</b> VIETNAM, Th ừa Thiên Hu ễ province, Bạch Mã National Park: •Ô holotype; Summit Trail (forest trail), N16.19667 E107.86169, 1428.0± 5.8 m.a.s.l.; 7 March 2023, 20h15; hiding among rotten tree trunk on the ground; coll. M.K. Tan & V. T. Trung; VIET.23.17 (VNMN) (Figs. 15, 16).</p> <p> <b>Diagnosis.</b> This new species is most similar to <i>Miriatroides kannackiensis</i> Storozhenko, 2016 from Gia Lai Province, but differs from latter (as well as from all other congeners) by the rostrum more projected in lateral view and the fore femur with margins (especially ventral margin) undulated.</p> <p> <b>Etymology.</b> This species is named after the moon (in Latin, luna = moon), as the holotype was collected near the summit on a clear night with a full moon.</p> <p> <b>Description.</b> Habitus as shown in Figs. 15, 16A, 16B. Different shades of brown, ranging from pale brown, and dark brown to red brown, well camouflaged against leaf litter and tree trunk on the ground.</p> <p>Head: In frontal view (Fig. 16C): antennal groove inserted below lower margin of eyes. Fastigium convex; sinuosoidal on anterior border. Face with numerous nodules. Frontal costa elongated. Bifurcation of frontal costa in line with middle of eye. Facial carinae faintly sinusoidal. Compound eyes hemispheric, not exerted above vertex, 1.55 times taller than wide. Lateral ocelli slightly ventral of bifurcation of frontal costa and slightly above antennal groove. In dorsal view (Fig. 16A): apex of fastigium clearly surpasses frontal margin of eyes, emarginated in the middle. Vertex 1.53 times wider than eye width. Lateral carinae of fastigium not distinct; median carina well surpassing apex of fastigium. In lateral view: frontal costa arched and well protruding in front of eyes. Mouthparts mostly brown to grey with small pale-coloured nodules. Maxillary palps pale coloured with tint of grey; with segments stout and apical segment somewhat oval.</p> <p>Pronotum: Pronotum reaching apex of posterior knee, 2.03 times longer than wide (pronotal lateral lobe width). In lateral view (Fig. 16B): with median, humero-apical, and interhumeral carinae irregularly undulated. Infrascapular area broad. Angle of ventral sinus between lateral shoulder and lateral lobe acute. In dorsal view (Fig. 16A): median carina distinct throughout length of pronotum, flanked by a network of irregular carinae. Lateral carinae distinct. Interhumeral carina distinct, diverging posteriorly. In dorsal view (Fig. 16A), lower margin of lateral lobe of pronotum leaf-shaped. Apical end of pronotal disc acute.</p> <p>Legs (Figs. 16A, 16B): Fore and middle legs: generally brown with either dark- or light-coloured bands. Fore femur with distinct dorsal carina straight, with ventral carina undulated, forming three nodules. Middle femur with less distinct dorsal and ventral carinae, clearly not undulating; lateral external carina undulated, forming two or three small nodules. Hind legs: posterior femur about 3.36 times longer than wide, about 1.34 times longer than hind tibia; with clear carinae along dorsal margin. Knee of hind femur with antegenicular tooth small but acute, genicular tooth rounded. Posterior tibia dark coloured anteriorly, becoming slightly lighter in colouration; with five spines on each lateral margin, with numerous spinules between these large dorsal spines. Basal article of hind tarsus generally pale coloured, 0.78 times as long as apical article; middle article dark coloured and very short; apical article white, except apex being black.</p> <p>Abdomen: Tergites and sternites typically dark coloured with some sparse patches of pale spots. Subgenital plate triangular (Figs. 16D, 16E).</p> <p> <b>Measurements (in mm).</b> PL = 7.17; PW = 3.54; PH = 1.20; HWL = NA; HFL = 4.53; HFW = 1.35; TL = NA; VW = 0.55; EW = 0.36; SW = 0.14; IAH = 0.52; BL = 7.34; PAW = 1.47; PPW = 2.16; MAL =?; MAW =?; 1 stAW = 0.18; TW = NA; FFL = 1.70; FFW = 0.55; MFL = 1.93; MFW = 0.44; HTL = 3.37; 1 st TaL = 0.49; 3 rd TaL = 0.63; SGPL = 0.56; SGPW = 0.59.</p> <p> <b>Ecology.</b> Only one specimen was encountered staying still and camouflaging itself in a decaying wood on the ground of a sheltered montane forest habitat at high altitude of Bạch Mã National Park (Fig. 3). Upon disturbance, it remained still.</p> <p> <b>Distribution.</b> So far known only from type locality.</p> <p> <b>Type locality.</b> Vietnam, Th ừa Thiên Hu ễ Province, B ạch Mã National Park.</p>Published as part of <i>Tan, Ming Kai, Vu, Trung Thanh, Le, Cuong Viet Canh & Pham, Thai Hong, 2023, Pygmy grasshoppers (Orthoptera: Tetrigidae) from B ạch Mã National Park, central Vietnam, pp. 199-223 in Zootaxa 5319 (2)</i> on pages 212-215, DOI: 10.11646/zootaxa.5319.2.3, <a href="http://zenodo.org/record/8182415">http://zenodo.org/record/8182415</a>
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