All-variable-speed chilled-water plants
- Calcium delivery and storage in plant leaves: exploring the link with water flow. Gilliham, Matthew; Dayod, Maclin; Hocking, Bradleigh J.; Bo Xu; Conn, Simon J.; Kaiser, Brent N.; Leigh, Roger A.; Tyerman, Stephen D. // Journal of Experimental Botany;Apr2011, Vol. 62 Issue 7, p2233
Calcium (Ca) is a unique macronutrient with diverse but fundamental physiological roles in plant structure and signalling. In the majority of crops the largest proportion of long-distance calcium ion (Ca2+) transport through plant tissues has been demonstrated to follow apoplastic pathways,...
- Mailbox. D'Antonio, Barbara; Radke, Lauren; Mindel, Delma; Patrick, Kate; Doyle, Dyan; Meehan, Patty; Phrops, Jenna; Hagerman, Bonnie; Welch, Laura Anne; Standeford, James; Rekker, Jason // Horticulture;Aug/Sep2006, Vol. 103 Issue 6, p12
Several letters to the editor are presented in response to articles and topics in previous issues, including "A Potted Aquatic," in the July 2006 issue, "Exceptional Alaska," in the July 2006 issue and how several gardeners developed their love for plants.
- Chilled Water Plants. Chua, Metcalfe // ASHRAE Journal;Nov2011, Vol. 53 Issue 11, p10
A letter to the editor is presented in response to the article "Optimizing Design & Control of Chilled Water Plants, Part I," by Steve Taylor in the July 2011 issue is presented.
- The Author Responds. Taylor, Steve // ASHRAE Journal;Nov2011, Vol. 53 Issue 11, p12
A response by Steve Taylor to a letter to the editor about his article "Optimizing Design & Control of Chilled Water Plants, Part I" in the July 2011 issue is presented.
- The role of the flow pattern in wastewater aeration tanks. Gresch, M.; Braun, D.; Gujer, W. // Water Science & Technology;2010, Vol. 61 Issue 2, p407
Reactor hydraulics is one of the key factors for plant performance and plant control. The residence time distribution is a good but limited indicator of reactor hydraulics. A more detailed view is obtained by direct observations within the reactor. Two different techniques (conservative tracer,...
- Aeration characteristics of a rectangular stepped cascade system. Moulick, Sanjib; Tambada, Naresh V.; Singh, Basant K.; Mal, B. C. // Water Science & Technology;2010, Vol. 61 Issue 2, p415
Aeration experiments, maintaining nappe flow conditions, were carried out on a rectangular stepped cascade of total height 3.0m to determine the total number of steps, slope of the entire cascade and hydraulic loading rate at which maximum overall aeration efficiency occurs, keeping the surface...
- Reader's view. Jermalowicz-Jones, Jennifer L.; Ema, Samuel; Huffman, John L.; Oliver, Frances; Kessel, Christina; Paul, DeLores // National Wildlife (World Edition);Dec2005/Jan2006, Vol. 44 Issue 1, p8
The article presents several letters to the editor. A reader says that he was not surprised to read that Lake Champlain is experiencing nuisance aquatic plant and algae growth. He says that this theme is becoming commonplace all over the world as undeveloped, forested lands that border water...
- Implementing small scale processes at the soil-plant interface - the role of root architectures for calculating root water uptake profiles. Schneider, C. L.; Attinger, S.; Delfs, J.-O.; Hildebrandt, A. // Hydrology & Earth System Sciences Discussions;2009, Vol. 6 Issue 3, p4233
In this paper, we present a stand alone root water uptake model called aRoot, which calculates the sink term for any bulk soil water flow model taking into account water flow within and around a root network. The boundary conditions for the model are the atmospheric water demand and the bulk...
- Torrent Control and Stabilization through Bio-engineering Measures in North Western Himalayan Region. Kumar, R.; Sharma, I. P.; Sharma, V. // Journal of Agricultural Science & Technology (19391250);Feb2011, Vol. 5 Issue 2, p188
The study revealed that low cost bio-engineering measures using local grass (Saccharum munja), shrubs (Vitex negundo and Ipomea spp.) and trees (Acacia nilotica and Acacia catechu) along with loose boulder structures (spurs, check dams and gully plugs) of suitable design and dimensions were very...