Results 71 to 80 of about 1,983 (199)

Development of Multi-Unit Orchard Centrifugal Spray System and Deposition Evaluation on Pear Trees

Agronomy
An air-assisted sprayer is a primary tool for pest and disease control in orchards. However, conventional systems often suffer from insufficient deposition at the canopy top and poor coverage on the abaxial leaf surfaces, which are highly susceptible to ...
Shaoqing Xu, Yanfang Li, Ziqi Geng, Peng Qi, Jianli Song   +4 more
doaj   +1 more source

Distribuição da calda herbicida por pontas de pulverização agrícola utilizadas em áreas de reflorestamento com eucalipto Herbicide distribution by spraying nozzles used in eucalyptus reforestation areas

Engenharia Agrícola, 2009
O trabalho teve como objetivo avaliar a distribuição de calda por pontas de pulverização hidráulicas para a aplicação de herbicidas em pré-emergência das plantas daninhas, em função do espaçamento na barra utilizada em áreas de reflorestamento com ...
Marcelo da C. Ferreira, José R. G. Di Oliveira, Ivan R. P. da S. Dal Pietro   +2 more
doaj   +1 more source

Influence of Delivery Method of Hydraulic Calcium Silicate Cement‐Based Sealer on Void Formation: A Micro‐Computed Tomography Study

Australian Endodontic Journal, EarlyView.
ABSTRACT The aim of this study was to compare three delivery methods of a hydraulic calcium silicate cement‐based sealer by quantifying voids using the single‐cone technique. Forty‐eight human mandibular molars were instrumented and scanned using micro‐computed tomography.
Yasmina Andreani, Ryan David Butler, Diana Patalwala, Paul V. Abbott, Mostafa M. A. Elkholy   +4 more
wiley   +1 more source

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

Boreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest, Neda Rahimzadeh, Debra Colarossi, Falko Malis, Tobias Lauer, Wera Sander‐Beuermann, Yvonne Spychala, Christian Brandes, Runa Fälber, Sumiko Tsukamoto, Jutta Winsemann   +10 more
wiley   +1 more source

Evaluation of New ULV Formulations (Ultra Low Volume) of the Lambda-Cyhalothrin (Amigo ULV 4%) and Deltamethrin (Delros ULV 1.25%) Compared with Malathion (EC 57%) for the Control of Moroccan Locust Dociostaurus maroccanus (Orth. Acrididae) [PDF]

پژوهش‌های حفاظت گیاهان ایران
Introduction[1]Almost every year, various types of native and migratory locusts attack pastures and agricultural crops. Unfortunately, to control these locusts, EC formulations of various insecticides are used, which are sprayed with various hydraulic ...
Ahmad Heidari, Mehran Ghazavi
doaj   +1 more source

Assessment of fit accuracy and retentive strength of additively manufactured zirconia crowns luted to Ti‐base abutments with different resin cements: An in vitro study

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study investigated the influence of cement gap size on the marginal and internal fit, and cement gap size and type on retention of additively manufactured zirconia (AM‐Z) crowns on titanium bases (Ti‐base). Materials and Methods A total of 135 zirconia crowns were designed with three different cement gap sizes: 20 µm, 30 µm, and ...
Rafat Sasany, Sultan Merve Uçar, Burak Yilmaz   +2 more
wiley   +1 more source

Plasma Pharmacokinetic Profile of Fipronil 1% Pour‐On in Cattle: Photodegradation and the Sustained Systemic Persistence of Fipronil Sulfone

Journal of Veterinary Pharmacology and Therapeutics, EarlyView.
ABSTRACT This study characterized the long‐term pharmacokinetic profile of a 1% fipronil pour‐on formulation in Nellore bulls under field conditions. Seventeen animals received a single topical dose (1 mg/kg), and plasma concentrations of fipronil and its metabolites (sulfone and desulfinyl) were monitored for 175 days using LC–MS/MS.
Stefani Maria Ferreira, Leonila Ester Reinert Raspantini, Giselle Kindlein, Fabiano Barreto, Caroline Andrade Tomaszewski, Tamara dos Santos Castilhos, Daniel Rodrigo Hillesheim, Silvana Lima Górniak, André Tadeu Gotardo   +8 more
wiley   +1 more source

Optimization Design and Atomization Performance of a Multi-Disc Centrifugal Nozzle for Unmanned Aerial Vehicle Sprayer

Agronomy
The nozzle is a crucial component in unmanned aerial vehicle (UAV) sprayers. The centrifugal nozzle offers unique advantages; however, there is a scarcity of published research regarding the structural parameters, spraying parameters, and practical ...
Zhaoyan Zhu, Mengran Yang, Yangfan Li, Supakorn Wongsuk, Cheng Zhao, Lin Xu, Yongping Zhang, Xiongkui He, Changling Wang   +8 more
doaj   +1 more source

Evidence for regulation of transpiration in nonstomatal plants: insights from bryophyte gametophytes

New Phytologist, EarlyView.
Kinetics of cell wall water vapor potential (Ψcw) and resistance of cell wall and plasmatic membrane to water flux in response to cytoplasmic water potential (Ψcyt) during dehydration. Ψcyt was calculated from the WC at any moment of the dehydration curve by using the relationship between −1/Ψw and WC of pressure volume curves and assuming Ψw = Ψcyt ...
Alicia V. Perera‐Castro, Diego A. Márquez, Florian A. Busch, David T. Hanson   +3 more
wiley   +1 more source

China's Export Surge and the Persistence of Machinery Competitiveness: Panel Evidence From 25 Countries

The World Economy, EarlyView.
ABSTRACT China's rapid ascent as a global machinery exporter raises fundamental questions about competitive resilience of incumbent economies. This paper examines whether China's gains in revealed comparative advantage (RCA) are associated with declining competitive positions among 24 incumbent economies and whether such changes coincide with ...
Hyungbae Gil, Oonkyu Lee, Hangjung Zo
wiley   +1 more source