نتایج جستجو برای: leaf dehydration speed

تعداد نتایج: 304686  

2013
Samuel N Cheuvront Robert W Kenefick Nisha Charkoudian Michael N Sawka

Dehydration (body water deficit) is a physiologic state that can have profound implications for human health and performance. Unfortunately, dehydration can be difficult to assess, and there is no single, universal gold standard for decisionmaking. In this article, we review the physiologic basis for understanding quantitative dehydration assessment. We highlight how phenomenologic interpretati...

Journal: :Physics in medicine and biology 2004
Weihua Fu Jianrong Dai Yimin Hu Dongsheng Han Yixin Song

The treatment delivery time of intensity-modulated radiation therapy (IMRT) with a multileaf collimator (MLC) is generally longer than that of conventional radiotherapy. In theory, removing the flattening filter from the treatment head may reduce the beam-on time by enhancing the output dose rate, and then reduce the treatment delivery time. And in practice, there is a possibility of delivering...

Journal: :Medical physics 2004
Kaile Li Jianrong Dai Lijun Ma

Leaf end abutment is seldom studied when delivering segmental intensity modulated radiation therapy (IMRT) fields. We developed an efficient leaf sequencing method to eliminate leaf end abutment for segmental IMRT delivery. Our method uses simple matrix and sorting operations to obtain a solution that simultaneously minimizes total monitor units and number of segments without leaf end abutment ...

Journal: :Journal of insect physiology 2012
Nicholas M Teets Yuta Kawarasaki Richard E Lee David L Denlinger

Larvae of the Antarctic midge, Belgica antarctica, routinely face periods of limited water availability in their natural environments on the Antarctic Peninsula. As a result, B. antarctica is one of the most dehydration-tolerant insects studied, surviving up to 70% loss of its body water. While previous studies have characterized the physiological effects of a single bout of dehydration, in nat...

2015
Adam C Levine Justin Glavis-Bloom Payal Modi Sabiha Nasrin Soham Rege Chieh Chu Christopher H Schmid Nur H Alam

INTRODUCTION Diarrhea remains one of the most common and most deadly conditions affecting children worldwide. Accurately assessing dehydration status is critical to determining treatment course, yet no clinical diagnostic models for dehydration have been empirically derived and validated for use in resource-limited settings. METHODS In the Dehydration: Assessing Kids Accurately (DHAKA) prospe...

Journal: :The American journal of clinical nutrition 2013
Samuel N Cheuvront Robert W Kenefick Nisha Charkoudian Michael N Sawka

Dehydration (body water deficit) is a physiologic state that can have profound implications for human health and performance. Unfortunately, dehydration can be difficult to assess, and there is no single, universal gold standard for decision making. In this article, we review the physiologic basis for understanding quantitative dehydration assessment. We highlight how phenomenologic interpretat...

Pervaporation (PV) is a well-established membrane technique used in separation; especially dehydration of organic solvents. Along with other parameters such as permeate pressure and feed temperature; feed composition is an important parameter, which affects separation characteristics and membrane performance in pervaporation. In this paper, the separation characteristics of a hydrophilic polyvi...

2016
Merlin Thomas Sagar P. Patel Ankit V. Patel Jigar V. Patel

This research work investigates the efficiency of H3PO4and KOH impregnated jackfruit leaf powder based carbon as adsorbent to remove Ni from wastewater. The removal characteristics of Nickel using both the adsorbents were investigated under various operating variables like contact time, adsorbent dosage, initial metal concentration, solution pH, temperature and stirring speed. The results showe...

Journal: :Cryo letters 2004
Rommanee Charoensub Dai Hirai Akira Sakai

Shoot tips of cassava (Manihot esculenta Crantz) in vitro plantlets were successfully cryopreserved using the encapsulation-vitrification technique. Nodal cuttings of 5 mm length with one leaf were cultured on modified MS medium in Petri dishes (90 mm x 20 mm) for about 28 days. Excised shoot tips were precultured on sucrose enriched (0.3 M) medium for 16 h, encapsulated and osmoprotected with ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید