Water tension

Ebook "The Jordan river and Dead Sea Basin: Cooperation amid conflict" provides vital new insights into possible elements of a sustainable future in one key area, that of the Jordan River and Dead Sea Basin. The future development of the Jordanian, Palestinian and Israeli people depends on finding a just and sustainable system of water resource management in this Basin. Given the potential for regional and other conflicts arising out of tensions over water, the ramifications are wider and even global in significance.

328p giangdongdinh 28-05-2024 3 1   Download

Continued part 1, part 2 of ebook "Soil sampling and methods of analysis (Second edition)" provide readers with content about: soil organic matter analyses; soil physical analyses; soil water analyses; unsaturated hydraulic conductivity: laboratory tension infiltrometer; unsaturated hydraulic properties: field tension infiltrometer;...

644p hanlinhchi 11-11-2022 16 3   Download

This study presents the synthesis of glucose-based surfactants including quaternary ammonium salts. Their surface properties and influence on the soil environment were investigated. The synthesized quaternary ammonium chlorides of glucose-based ester exhibited good surface tension reduction properties and formed stable foam in contact with water. The results showed that quaternary ester ammonium salts affect the activation of metals (nickel and cadmium) from the soil matrix after their introduction into the soil environment. This phenomenon can increase the bioavailability of these metals.

15p tudichquannguyet 29-11-2021 5 1   Download

Researchers have studied and evaluated the effects of electrical current frequency (f = 0÷2.000 Hz) on the physicochemical properties (surface tension, dynamic viscosity, specific weight) of wastewater. The effect of electric fields on the physicochemical properties of water, allows it to identify the optimal treatment regimes that promote the intensification of various processes taking place in an aqueous medium or in the presence of water.

7p nguaconbaynhay12 13-06-2021 21 1   Download

In this study, the numerical computation is used to investigate the transient thermocapillary migration of a water droplet in a micro-channel under the effect of heating source. For tracking the evolution of the free interface between two immiscible fluids, we employed the finite element method with the two-phase level set technique to solve the Navier-Stokes equations and continuity equation coupled with the energy equation. Both the upper wall and the bottom wall of the microchannel are set to be an ambient temperature.

8p trinhthamhodang9 04-12-2020 16 3   Download

This paper reviews the mechanisms of oil release and the use of microbes and their metabolic products to enhance oil recovery. Alteration of oil/rock/water interfacial tensions properties and changes in flow behaviour assist the enhancement of oil recovery. Oil recovery can be improved by injecting gases and solvents or by stimulating their production by reservoir microflora in situ for reservoir repressurization and carbonate rock dissolution.

14p nguathienthan8 20-10-2020 14 1   Download

The scrutiny was laid out in a split-split plot design with three replications. The investigation unwraps the information that the treatment i.e. no stress condition (- 0kPa) and -10kPa perform better when contrasted with the presentation of stress situation (- 40kPa) regardless of cultivars in the vast majority of the development and formative traits. Physical characters estimated regarding leaf appearance rate was found to diminish altogether if there should arise an occurrence of - 40kPa when contrasted with - 0 and - 10kPa.

9p nguaconbaynhay7 15-08-2020 11 1   Download

An experiment was carried out to study the influence of rootstocks on plant volume, root growth, biomass, water relations and leaf nutrient status of almond cv. Non Pareil under different soil moisture regimes at the experimental farm of Department of Pomology, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.).

10p gaocaolon5 14-06-2020 12 0   Download

Surfactants are widely used in the petroleum industry as one kind of Enhanced Oil Recovery methods (EOR). The oil sands mines in Northern Alberta are the largest one in the world. Due to using sodium hydroxide in bitumen extraction process, there are a lot of surfactant molecules in the tailing water. The surfactants from oil sands industry have brought a potential threat to the environment and human health.

7p mentospurefresh 29-11-2019 22 0   Download

Undesirable and desirable effects of stressors on the body are assigned to distress and eustress, respectively. Immune system and brain are the most susceptible parts to stressful conditions, whereas longlasting alterations in putative immune proteins involved in tension such as corticosterone (CORT), interleukin 6 (IL-6), and tumor necrosis factor-alpha (TNF-a) can impact learning and memory. Intermittent fasting (IF) is a repeated regular cycle of dietary restriction with well-known beneficial properties on the body.

5p trinhthamhodang1 14-11-2019 31 2   Download

This paper evaluates and compares the water retention in the ,fresh state and adhesion or bond strength in the hardened state of powdered and aqueous polymer-modified mortars. The polymermodified mortars using various powdered and aqueous cement modifiers were prepared with different polymer-cement ratios, and tested for water retention in the fresh state and adhesion in tension in the hardened state.

6p christian2605 11-10-2019 41 2   Download

The feeding-solution-N concentration giving the highest tomato fruit yield was about 120 mg N l-1 as estimated using a N-concentration yield-response function.

6p masterbarista 14-01-2019 12 1   Download

After studying this chapter you will be able to understand: The role of passive transport, active transport, and cotransport in plant transport; the role of diffusion, active transport, and bulk flow in the movement of water and nutrients in plants; how the transpiration cohesion-tension mechanism explain water movement in plants; how pressure flow explains translocation.

24p nomoney10 04-05-2017 38 2   Download

Another major global trend – and one not easily controlled – is the global rise in temperature. Most debates are currently focused on the extent of human agency and on the nature of the causes of climate change. Should climate change have the effects popularly predicted – by no means a fait accompli – then geostrategy will return as an important factor in interna- tional politics.

35p thamgiacongdong 02-05-2013 48 3   Download

There are three things to be said in response to this concern. First, even if it is sometimes true that sensing and adjusting is done automatically or unconsciously, it is not always the case. When, after a long bout of reading, I straighten my frame and enjoy a delicious sensation of stretching, this may be very consciously appreciated and adjusted so as to work out subtle areas of tension that have built up. The reciprocal relation of doing and undergoing is quite conscious: ‘the action and its consequence’ are ‘joined in perception’ . ...

7p giamdocamnhac 06-04-2013 55 6   Download

A heightened concern for the environment, combined with increasing sophistication in tracking and modelling air currents, has led to the realization that local air and water may be contaminated by pollutants emitted many miles away. Indeed, this realization has resulted in inter-regional and international tensions regarding air pollution. For example, much of the acid rain problem in the northeastern United States is a result of SOx emissions from coal-fired power plants in the Midwest.

9p tainhacmienphi 19-02-2013 60 3   Download

Physical water resource constraints make companies more susceptible to reputational risks. Declines in water availability and quality can increase competition for clean water. In water-scarce regions, tensions can arise between businesses and local communities, particularly in developing countries where local populations often lack access to safe and reliable drinking water. Community opposition to industrial water withdrawals and perceived or real inequities in use can emerge quickly and affect businesses profoundly.

34p saimatkhauroi 01-02-2013 59 3   Download

There have been major breakthroughs in lung surfactant (LS) research over the last two decades that have changed our concept of how and why the material works well at the lung air–water interface. From the initial ideas of a surface active material lining the alveoli to the seminal concepts of how low surface tension is reached, the classical ideas about Comroe’s “extraordinary juice” requires revision and re-thinking.

530p crius75 04-01-2013 32 4   Download

Water policies intersect with a wide array of sectors, especially energy and agriculture, and are implemented at various geographical scales, from local to international. Thus, policy coherence is essential. However, tensions may arise from real or perceived trade‑offs between various policy objectives ‑ for instance, between food security and water productivity. Inefficiencies may result from subsidies that have negative impacts on water, as in the case of energy subsidies for groundwater abstraction by farmers. Resolving these tensions requires a global perspective.

0p lulaula 25-10-2012 44 6   Download

Vascular dysfunction may also reduce oxygen delivery to gingival tissue. Pocket oxygen tension was reported to be significantly lower in smokers than non-smokers providing support for the negative effects of smoking on vascular system (Hanioka et al. 2000). Evidence from both human and experimental studies suggests that smoking has a long-term chronic effect, and its effect is not simply a vasoconstriction.

51p pt_1669 26-03-2012 149 54   Download