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Author: CR. Tuck Publisher: ISBN: Category : Application Languages : en Pages : 13
Book Description
The need for designers and users of pesticide application equipment to balance the risk of off-target contamination with high product efficacies when using the minimum dose of active ingredient has led to the requirement for more data defining the performance of such equipment. Measurements of the droplet size distribution in sprays from conventional nozzles has shown acceptable levels of consistency between data obtained with different measuring systems enabling such sprays to be classified providing that systems are calibrated with agreed reference nozzles. For sprays with air inclusions different measuring systems have been shown to give comparable and consistent results, and there is now a need to fully integrate such sprays into a revised classification scheme. Temperature of both spray liquid and the surrounding air have been shown to influence droplet size distribution measurements. It is therefore proposed that measurement protocols specify a maximum difference in temperature between the spray liquid and surrounding air of 5°C. For boom sprayers it is not possible to predict accurately the risk of drift from droplet size measurements alone because of the complex detrainment mechanisms involved. It is proposed that standardized wind tunnel procedures be defined that enable the relative risk of drift from different nozzle designs to be quantified. In the future it is likely that more of the information relating to application system performance will be delivered pre-programmed in the units control system or as part of a decision support system.
Author: CR. Tuck Publisher: ISBN: Category : Application Languages : en Pages : 13
Book Description
The need for designers and users of pesticide application equipment to balance the risk of off-target contamination with high product efficacies when using the minimum dose of active ingredient has led to the requirement for more data defining the performance of such equipment. Measurements of the droplet size distribution in sprays from conventional nozzles has shown acceptable levels of consistency between data obtained with different measuring systems enabling such sprays to be classified providing that systems are calibrated with agreed reference nozzles. For sprays with air inclusions different measuring systems have been shown to give comparable and consistent results, and there is now a need to fully integrate such sprays into a revised classification scheme. Temperature of both spray liquid and the surrounding air have been shown to influence droplet size distribution measurements. It is therefore proposed that measurement protocols specify a maximum difference in temperature between the spray liquid and surrounding air of 5°C. For boom sprayers it is not possible to predict accurately the risk of drift from droplet size measurements alone because of the complex detrainment mechanisms involved. It is proposed that standardized wind tunnel procedures be defined that enable the relative risk of drift from different nozzle designs to be quantified. In the future it is likely that more of the information relating to application system performance will be delivered pre-programmed in the units control system or as part of a decision support system.
Author: Roger Anthony Downer Publisher: ASTM International ISBN: 0803134533 Category : Pesticides Languages : en Pages : 187
Book Description
Held in October of 2001 in Dallas, Texas, the symposium set out to integrate the efforts of formulation chemists, regulators, and those in industry related to sprayer and nozzle manufacture on topics related to the delivery of crop protection agents (pesticides). Sixteen contributions are presented. After the invited paper on continuity and change in U.S. federal pesticide policy, the papers are organized into two sections, first treating formulation ingredients and design, and then discussing delivery strategies. The first deals with such topics as novel polymeric dispersants, clays as microbial carriers, and Alkyl Citrate Ester surfactants. The second explores such issues as bees as delivery agents, roles of surfactants in foliar application of systemic compounds, and related topics. Annotation copyrighted by Book News, Inc., Portland, OR.
Author: Anthony J. Hickey Publisher: John Wiley & Sons ISBN: 1118943171 Category : Science Languages : en Pages : 455
Book Description
Provides a review of novel pharmaceutical approaches for Tuberculosis drugs Presents a novel perspective on tuberculosis prevention and treatment Considers the nature of disease, immunological responses, vaccine and drug delivery, disposition and response Multidisciplinary appeal, with contributions from microbiology, immunology, molecular biology, pharmaceutics, pharmacokinetics, chemical and mechanical engineering
Author: Ramdane Dris Publisher: Springer Science & Business Media ISBN: 1402025335 Category : Science Languages : en Pages : 292
Book Description
Today, in a world with abundant food, more than 700 million people are chro- cally undernourished. Over the next 20 years, the world’s population will probably double. The global food supply would need to double or to triple for the larger population to be fed adequately. Agriculture is closely linked to environmental quality in a variety of ways, and the challenge of our generation is how to feed a growing planet while maintaining the integrity of our ecological life-support system. The responsibility of governments for ensuring food security will grow proportionately with the growth of populations, and governments bear a special responsibility for promoting agricultural inputs. Agriculture in the 21st century, will certainly focus increasingly on adapting modern technologies to local farming systems, needs and environments. Worldwide climatic changes have been raising concerns about potential changes to crop yields and production systems. Such concerns include the ability to acc- modate these uncertain effects in order to ensure an adequate food supply for an increasing population. What can be done concretely to use agriculture to address some of the fundamental issues of today’s world? We must recognize that agric- ture is part of the solution and not just a problem. Agricultural development is a key to social stability and equity in many parts of the world. It can help to al- viate the subtle and unspoken fears of modernization and the space of change if innovation is handled transparently.
Author: Yashwant Pathak Publisher: CRC Press ISBN: 1000450767 Category : Medical Languages : en Pages : 692
Book Description
Handbook of Lung Targeted Drug Delivery Systems: Recent Trends and Clinical Evidences covers every aspect of the drug delivery to lungs, the physiology and pharmacology of the lung, modelling for lung delivery, drug devices focused on lung treatment, regulatory requirements, and recent trends in clinical applications. With the advent of nano sciences and significant development in the nano particulate drug delivery systems there has been a renewed interest in the lung as an absorption surface for various drugs. The emergence of the COVID-19 virus has brought lung and lung delivery systems into focus, this book covers new developments and research used to address the prevention and treatment of respiratory diseases. Written by well-known scientists with years of experience in the field this timely handbook is an excellent reference book for the scientists and industry professionals. Key Features: Focuses particularly on the chemistry, clinical pharmacology, and biological developments in this field of research. Presents comprehensive information on emerging nanotechnology applications in diagnosing and treating pulmonary diseases Explores drug devices focused on lung treatment, regulatory requirements, and recent trends in clinical applications Examines specific formulations targeted to pulmonary systems
Author: Ming Miao Publisher: Royal Society of Chemistry ISBN: 1839164182 Category : Science Languages : en Pages : 537
Book Description
Lipophilic nutraceuticals include vitamins (A, C and E), carotenoids and flavanoids This book is intended to review the current bioactive delivery systems for lipophilic nutraceuticals, and introduce their mechanisms, preparation methods, and application range.
Author: Giuseppe Manetto Publisher: MDPI ISBN: 3036513035 Category : Technology & Engineering Languages : en Pages : 112
Book Description
The effective and efficient application of PPP in agriculture is a very complex task, involving a lot of aspects ranging from active substance properties to climatic conditions, from target structure to equipment features, from operator awareness to the reference legislative framework. Some of these aspects have been treated in the six papers collected in this Special Issue on “Pesticide Applications in Agricultural Systems”.
Author: Lawrence A. Lacey Publisher: Springer Science & Business Media ISBN: 1402059337 Category : Science Languages : en Pages : 852
Book Description
This field manual is designed to provide background and instruction on a broad spectrum of techniques and their use in the evaluation of entomopathogens in the field. The second edition provides updated information and includes two additional chapters and 12 new contributors. The intended audience includes researchers, graduate students, practitioners of integrated pest management (IPM), regulators and those conducting environmental impact studies of entomopathogens.
Author: CR. Tuck
Author: CR. Tuck
Author: Masoud Salyani
Author: Roger Anthony Downer
Author: Shrikaant Kulkarni
Author: Anthony J. Hickey
Author: Ramdane Dris
Author: Yashwant Pathak
Author: Ming Miao
Author: Giuseppe Manetto
Author: Lawrence A. Lacey