Hossein Hashemi – författare

Seven years ago research in the ?eld of mm-wave silicon was virtually non-existent. Fewpeoplethoughtthatoperationat60GHzwasevenfeasibleinsilicontechnology. Inthecourseofsevenyearsthe topichastransitionedfromanobscureresearchtopic to an exciting buzzword (60GHz) that has generated much interest from industry and the venture community.To put things in historical perspective, seven years ago most commercial efforts were focused on the 1-10 GHz spectrum for voice and data applications for mobile phones and portable computers. Many people were actively seeking solutions to the “last mile” problem, or a way to deliver high speed data to users in their homes and of?ces throughcable, telephone, or wireless infrastructure. At the same time, the explosive growth of wireless data such as WiFi spurred s- ni?cant research into and development of new architectures for radio transceivers that could deliver very high data rates over short ranges, particularly for video and personal area networks. Thisproblem can be viewed as the “last meter” or even the “last inch” connection that delivers high bandwidth multimedia content to devices. The growth of MP3 media devices, and now handheld video devices, and the rapid adoptionofHDTV and ?at screentelevisions hascreateda healthydemandforte- nology that enables high speed wireless video transmission. For this reason, today we witness a very active interest in mm-wave silicon technology. Other important commercial applications include automotive radar for safety and improved driving experience. But these applications are only the tip of the iceberg.

Seven years ago research in the ?eld of mm-wave silicon was virtually non-existent. Fewpeoplethoughtthatoperationat60GHzwasevenfeasibleinsilicontechnology. Inthecourseofsevenyearsthe topichastransitionedfromanobscureresearchtopic to an exciting buzzword (60GHz) that has generated much interest from industry and the venture community.To put things in historical perspective, seven years ago most commercial efforts were focused on the 1-10 GHz spectrum for voice and data applications for mobile phones and portable computers. Many people were actively seeking solutions to the “last mile” problem, or a way to deliver high speed data to users in their homes and of?ces throughcable, telephone, or wireless infrastructure. At the same time, the explosive growth of wireless data such as WiFi spurred s- ni?cant research into and development of new architectures for radio transceivers that could deliver very high data rates over short ranges, particularly for video and personal area networks. Thisproblem can be viewed as the “last meter” or even the “last inch” connection that delivers high bandwidth multimedia content to devices. The growth of MP3 media devices, and now handheld video devices, and the rapid adoptionofHDTV and ?at screentelevisions hascreateda healthydemandforte- nology that enables high speed wireless video transmission. For this reason, today we witness a very active interest in mm-wave silicon technology. Other important commercial applications include automotive radar for safety and improved driving experience. But these applications are only the tip of the iceberg.

Hydrological Insights: Synergizing Groundwater Models, Remote Sensing, and AI for Water Sustainability offers an in-depth exploration of hydrological modeling and its cutting-edge advancements, presented across six comprehensive sections. Part I establishes the foundational principles and methodologies of hydrological modeling, while Part II delves into sophisticated techniques and tools that enhance the accuracy and efficiency of hydrological studies. Part III highlights the powerful integration of remote sensing and artificial intelligence, showcasing how these technologies revolutionize modern hydrological practices.Part IV focuses on environmental impact assessment and management strategies, outlining effective methods for sustainable water resource management. Part V covers the latest advancements in remote sensing and machine learning, emphasizing their pivotal role in contemporary hydrology. Finally, Part VI presents real-world case studies and future directions, offering practical insights and forward-looking perspectives. With meticulously crafted chapters that combine theoretical foundations with practical applications, this book is an essential resource for students, researchers, and professionals seeking to advance their understanding of hydrology through the integration of remote sensing and AI.Covers the latest developments and future trends in AI and machine-learning in the fields of hydrology and water resource engineeringIncludes advanced groundwater methods and techniques demonstrated through real-world case studies with step-by-step analysisOffers an easy-to-follow structure with data-driven approachesAuthored by world acclaimed experts in the fields of hydrology and AI

Hydrological Insights: Synergizing Groundwater Models, Remote Sensing, and AI for Water Sustainability offers an in-depth exploration of hydrological modeling and its cutting-edge advancements, presented across six comprehensive sections. Part I establishes the foundational principles and methodologies of hydrological modeling, while Part II delves into sophisticated techniques and tools that enhance the accuracy and efficiency of hydrological studies. Part III highlights the powerful integration of remote sensing and artificial intelligence, showcasing how these technologies revolutionize modern hydrological practices.Part IV focuses on environmental impact assessment and management strategies, outlining effective methods for sustainable water resource management. Part V covers the latest advancements in remote sensing and machine learning, emphasizing their pivotal role in contemporary hydrology. Finally, Part VI presents real-world case studies and future directions, offering practical insights and forward-looking perspectives. With meticulously crafted chapters that combine theoretical foundations with practical applications, this book is an essential resource for students, researchers, and professionals seeking to advance their understanding of hydrology through the integration of remote sensing and AI. - Covers the latest developments and future trends in AI and machine-learning in the fields of hydrology and water resource engineering- Includes advanced groundwater methods and techniques demonstrated through real-world case studies with step-by-step analysis- Offers an easy-to-follow structure with data-driven approaches- Authored by world acclaimed experts in the fields of hydrology and AI

Build high-performance, spectrally clean, energy-efficient mm-wave power amplifiers and transmitters with this cutting-edge guide to designing, modeling, analysing, implementing and testing new mm-wave systems. Suitable for students, researchers and practicing engineers, this self-contained guide provides in-depth coverage of state-of-the-art semiconductor devices and technologies, linear and nonlinear power amplifier technologies, efficient power combining systems, circuit concepts, system architectures and system-on-a-chip realizations. The world''s foremost experts from industry and academia cover all aspects of the design process, from device technologies to system architectures. Accompanied by numerous case studies highlighting practical design techniques, tradeoffs and pitfalls, this is a superb resource for those working with high-frequency systems.

Build high-performance, spectrally clean, energy-efficient mm-wave power amplifiers and transmitters with this cutting-edge guide to designing, modeling, analysing, implementing and testing new mm-wave systems. Suitable for students, researchers and practicing engineers, this self-contained guide provides in-depth coverage of state-of-the-art semiconductor devices and technologies, linear and nonlinear power amplifier technologies, efficient power combining systems, circuit concepts, system architectures and system-on-a-chip realizations. The world''s foremost experts from industry and academia cover all aspects of the design process, from device technologies to system architectures. Accompanied by numerous case studies highlighting practical design techniques, tradeoffs and pitfalls, this is a superb resource for those working with high-frequency systems.

Seven years ago research in the ?eld of mm-wave silicon was virtually non-existent. Fewpeoplethoughtthatoperationat60GHzwasevenfeasibleinsilicontechnology. Inthecourseofsevenyearsthe topichastransitionedfromanobscureresearchtopic to an exciting buzzword (60GHz) that has generated much interest from industry and the venture community.To put things in historical perspective, seven years ago most commercial efforts were focused on the 1-10 GHz spectrum for voice and data applications for mobile phones and portable computers. Many people were actively seeking solutions to the “last mile” problem, or a way to deliver high speed data to users in their homes and of?ces throughcable, telephone, or wireless infrastructure. At the same time, the explosive growth of wireless data such as WiFi spurred s- ni?cant research into and development of new architectures for radio transceivers that could deliver very high data rates over short ranges, particularly for video and personal area networks. Thisproblem can be viewed as the “last meter” or even the “last inch” connection that delivers high bandwidth multimedia content to devices. The growth of MP3 media devices, and now handheld video devices, and the rapid adoptionofHDTV and ?at screentelevisions hascreateda healthydemandforte- nology that enables high speed wireless video transmission. For this reason, today we witness a very active interest in mm-wave silicon technology. Other important commercial applications include automotive radar for safety and improved driving experience. But these applications are only the tip of the iceberg.

Research Paper (postgraduate) from the year 2018 in the subject Environmental Sciences, , language: English, abstract: When saline water is used to irrigate crops in arid environments, appropriate irrigation management should be applied to avoid negatively impacting soil characteristics. In this study, the effects of irrigating date palms with saline water (2,24 g l-1) on soil physicochemical characteristics such as the electrical conductivity (ECe), the pH of the saturated soil paste (pHe), the concentrations of soluble cations (Ca2+, Mg2+, Na+), the sodium adsorption ratio (SAR), the saturated soil hydraulic conductivity (Ks), and the volumetric water content of the soil (?v) were evaluated in a Tunisian Saharan cropland, the Dergine Oasis, during a 4-year period (2012-2015). The effects of three different irrigation treatments of date palms on soil properties were investigated: low treatment (90% of the net irrigation requirement (NIR) of date palms was applied); medium treatment (100% of NIR was applied), and high treatment (110% of NIR was applied). The results showed that the application of saline water for irrigation inevitably has a negative impact on the physicochemical properties of the soil. Irrigation with saline water was observed to have severe negative impacts on the soil characteristics, especially ECe, Na+, Ks, and ?v. However, among the three irrigation treatments applied, statistical analysis (Duncan s multiple range test) indicated that the high treatment significantly (p < 0.05) minimized the degradation of soil characteristics by the saline water; this treatment decreased ECe, Na+, and SAR and increased the water content, ?v, of the studied soil.