Number of results to display per page
Search Results
41442. Warchalowski, A.: The palaearctic chrysomelidae. Identification Keys. Vol. 1 & Vol. 2
- Creator:
- Bezděk, J.
- Type:
- article, recenze, model:article, and TEXT
- Subject:
- Zoologie, zoologie, 2, and 59
- Language:
- English
- Description:
- [autor recenze] J. Bezděk.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
41443. Wãsitské vyznání
- Creator:
- Bronislav Ostřanský
- Type:
- article, recenze, model:article, and TEXT
- Subject:
- Sociologie kultury. Kulturní život, orientální civilizace, oriental civilization, 1, and 316.7
- Language:
- Czech
- Description:
- [Bronislav Ostřanský].
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
41444. Water as symbol: transformation and/or re-birth in the Indian anglophone novel
- Creator:
- Volná, Ludmila
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Water, symbol, and Indian anglophone
- Language:
- English
- Description:
- This article deals with the Hindu cosmological imagery of water as presented in the Indian novel in English. The writers show a great interest in water as a means of depicting a transformation and/or re-birth of both the Indian society and the individuals in it relying on the water as symbolizing a beginning of a new life/identity in the Hindu cosmology. This is rendered vividly, for example, through the Nārada and Mārkandeya myths, where the two sages, after a passage through water, experience a new identity or a world perception totally different from that known to them before. R. K. Narayan, an author who lived all his life in India, deals in his novel The English Teacher with the spiritual transformation of the main character, Krishnan, which is accompanied and accomplished by different entities of water. He is oppressed both by the colonial condition and by personal tragedy, whereas Saleem, the main character of Salman Rushdie’s Midnight’s Children, who is made to represent the country, acquires in the jungle of the Sundarbans an understanding of the necessity of adopting elements of other cultures. Two other authors, Anita Desai and Chitra Banerjee Divakaruni, develop the theme of the woman’s condition as a representation of the counterpart and contradictory images of water and sun/fire. Desai’s Fasting, Feasting relates the Indian condition to that of another culture and Divakaruni’s The Mistress of Spices addresses the problems of the Indian concept of marriage in the diaspora while using mythological imageries of other cultures.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
41445. Water infiltration in an aquifer recharge basin affected by temperature and air entrapment
- Creator:
- Loizeau, Sébastien, Rossier, Yvan, Gaudet, Jean-Paul, Refloch, Aurore, Besnard, Katia, Angulo-Jaramillo, Rafael, and Lassabatere, Laurent
- Type:
- article, model:article, and TEXT
- Subject:
- aquifer recharge, unsaturated/saturated modeling, infiltration test, air entrapment, and temperature dependence
- Language:
- Slovak
- Description:
- Artificial basins are used to recharge groundwater and protect water pumping fields. In these basins, infiltration rates are monitored to detect any decrease in water infiltration in relation with clogging. However, miss-estimations of infiltration rate may result from neglecting the effects of water temperature change and air-entrapment. This study aims to investigate the effect of temperature and air entrapment on water infiltration at the basin scale by conducting successive infiltration cycles in an experimental basin of 11869 m2 in a pumping field at Crepieux-Charmy (Lyon, France). A first experiment, conducted in summer 2011, showed a strong increase in infiltration rate; which was linked to a potential increase in ground water temperature or a potential dissolution of air entrapped at the beginning of the infiltration. A second experiment was conducted in summer, to inject cold water instead of warm water, and also revealed an increase in infiltration rate. This increase was linked to air dissolution in the soil. A final experiment was conducted in spring with no temperature contrast and no entrapped air (soil initially water-saturated), revealing a constant infiltration rate. Modeling and analysis of experiments revealed that air entrapment and cold water temperature in the soil could substantially reduce infiltration rate over the first infiltration cycles, with respective effects of similar magnitude. Clearly, both water temperature change and air entrapment must be considered for an accurate assessment of the infiltration rate in basins.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
41446. Water loss of male and female Alphitobius diaperinus (Coleoptera: Tenebrionidae) maintained under dry conditions
- Creator:
- Renault, David and Coray, Yann
- Type:
- article, model:article, and TEXT
- Subject:
- Desiccation resistance, survival, sex, body size, body water, water loss rate, Tenebrionidae, and Coleoptera
- Language:
- English
- Description:
- Survival under dry conditions was examined in males and females of Alphitobius diaperinus Panzer (Coleoptera: Tenebrionidae), a beetle of tropical origin. The range of individual responses and the effect of gender on water loss were also evaluated. Females exhibit significantly longer survival (Lt50 and Lt90) than males under desiccating conditions. Larger females beetles have a greater initial water mass and hence can tolerate greater water losses. Such beetles have longer survival under dry conditions. Males and females loose an average of 54.8 and 58.9% of their body water prior to death. The insects were inactive most of the time, when kept under dry conditions; the rate of decrease in body water was thus reduced. Beetles of both gender display a negative correlation between the rates of water loss under desiccating conditions and the duration of survival. We conclude that the difference in survival period between males and females is due to a combination of greater female tolerance to desiccation and larger body size.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
41447. Water surface topology of supercritical junction flow
- Creator:
- Rak , Gašper, Hočevar , Marko, and Steinman , Franci
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- junction, hydraulic experimention, standing wave, supercritical flow, and flow patterns
- Language:
- Slovak
- Description:
- The complexity of flow conditions at junctions amplifies significantly with supercritical flow. It is a pronounced three-dimensional two-phased flow phenomenon, where standing waves with non-stationary water surface are formed. To analyse the hydrodynamic conditions at an asymmetric right-angled junction with incoming supercritical flows at Froude numbers between 2 and 12, an experimental approach was used. For a phenomenological determination of the relations between the integral parameters of incoming flows and the characteristics of standing waves at the junction area, water surface topographies for 168 scenarios at the junction were measured using non-intrusive measurement techniques. The new, phenomenologically derived equations allow for determination of location, height and extent of the main standing waves at the junction. Research results give important information on the processes and their magnitude for engineering applications.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
41448. Water-wave problem for a vertical shell
- Creator:
- Kuznetsov, Nikolay and Maz'ya, Vladimir
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- time-harmonic velocity potential, uniqueness theorem, Helmholtz equation, Neumann’s eigenvalue problem for Laplacian, integral equation method, and weighted Hölder spaces
- Language:
- English
- Description:
- The uniqueness theorem is proved for the linearized problem describing radiation and scattering of time-harmonic water waves by a vertical shell having an arbitrary horizontal cross-section. The uniqueness holds for all frequencies, and various locations of the shell are possible: surface-piercing, totally immersed and bottom-standing. A version of integral equation technique is outlined for finding a solution.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
41449. Watson-Crick pushdown automata
- Creator:
- Chatterjee , Kingshuk and Ray, Kumar S.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- deterministic Watson-Crick automata, deterministic Watson-Crick pushdown automata, deterministic multi-head pushdown automata, and context free languages
- Language:
- English
- Description:
- A multi-head 1-way pushdown automaton with k heads is a pushdown automaton with k 1-way read heads on the input tape and a stack. It was previously shown that the deterministic variant of the model cannot accept all the context free languages. In this paper, we introduce a 2-tape, 2-head model namely Watson-Crick pushdown automata where the content of the second tape is determined using a complementarity relation, similar to Watson-Crick automata. We show computational powers of nondeterministic two-head pushdown automata and nondeterministic Watson-Crick pushdown automata are same. Moreover, deterministic Watson-Crick pushdown automata can accept all the context free languages.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
41450. Watt A.D., Stork, N.E. & Hunter, M.D. (eds.): Forest and insects
- Creator:
- Lepš, J.
- Type:
- article, model:article, and TEXT
- Language:
- English
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public