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This article describes a novel bearingless split-tooth flux-reversal motor with integrated centrifugal blood pump. This motor has a magnet-free rotor and is capable of operating at up to 3000 r/min with up to 100 mN $\cdot$ m torque. The motor also has 50 N radial force capability for centering the rotor. The motor rotor is 50 mm diameter, housed in a 170 mm wide stator. The motor has a novel magnetic configuration, wherein the force generation is independent of the rotor angle. This allows simple radial force generation using stator-fixed currents. The motor torque is generated using commutated two-phase currents. The finite-element simulations are used to optimize the design in order to achieve sufficient radial force and motor torque while minimizing cogging torque. The design also achieves an axial passive magnetic stiffness of 5.4 N/mm, which is the constraint on axial motions of the rotor. This article includes mechanical design and fabrication details as well as experimental closed-loop levitation and speed control performance. With an integrated impeller, the rotor and the centrifugal pump are tested by pumping fluid in a closed circuit to obtain experimental pressure–flow curves with impeller-limited performance.

This article describes a position sensor with six degrees of freedom (DoF) measurement capability. This sensor is designed for the position sensing of the rotor in a bearingless slice motor to enable active control. The sensor is designed to fit entirely under the rotor and operates by accessing the rotor bottom surface only, enabling packaging of the pump on the top of the rotor. The sensor has two parts; both operate using eddy currents. One of these parts measures the two radial DoF of the rotor. The other part measures the axial, angular rotation and tip/tilt DoF. The sensor utilizes a conductive target fixed to the underside of the rotor. Motion of this target varies the magnetic fields, which can then be measured by the sensor as variation in either induced voltage or inductance value. The design and fabrication of the sensor along with the signal processing methods are presented in detail. The radial position measurements are the most critical for active levitation due to the small working gaps in these DoF, hence a resolution of $<1.2\ \mu \rm {m}$ and bandwidth of 1 kHz is achieved. This article also describes the closed-loop behavior of a bearingless motor using this sensor.

Artificial intelligence (AI) is revolutionizing various fields of medicine, and anesthesia is no exception. AI in anesthesia is not only streamlining the work of anesthesiologists but also improving patient outcomes. The integration of biotechnology and AI has created opportunities for personalized care in anesthesia, with the aim of optimizing patient outcomes. The use of biotechnology in conjunction with AI has further expanded the possibilities in anesthesia care. Biotechnology tools such as genomics and proteomics can provide insights into individual patient responses to anesthesia drugs, enabling personalized drug dosing and reducing the risk of adverse events. Similarly, the use of biosensors and wearable devices can provide continuous monitoring of vital signs and other physiological parameters, allowing for real-time adjustments to anesthesia care. In future the integration of AI and biotechnology in anesthesia care has the potential to transform the field of anesthesia and improve patient outcomes. The development of personalized care plans and the early identification of at-risk patients can lead to a safer and more efficient anesthesia experience for patients.

Cytokine storm is an excessive immune response that can occur in various medical conditions, including infections, autoimmune diseases, and cancer. It is characterized by a massive release of cytokines, leading to widespread inflammation and tissue damage. Clinical manifestations of cytokine storm include fever, hypotension, respiratory distress, and organ dysfunction. Laboratory findings typically show elevated levels of inflammatory markers and cytokines. The treatment of cytokine storm depends on the underlying cause and severity of the condition, but commonly involves immunosuppressive therapy, cytokine inhibitors, supportive care, plasma exchange, and other therapies. Early recognition and management are crucial for improving patient outcomes. Several cytokine inhibitors have been used in the treatment of cytokine storm, including tocilizumab, anakinra, emapalumab, sarilumab, and baricitinib. However, the use of cytokine inhibitors should be individualized based on the underlying condition and potential side effects. Further research is needed to better understand the pathophysiology of cytokine storm and develop more effective treatment strategies.

A 2 pole bearingless interior permanent magnet (IPM) motor with slice rotor configuration is presented in this paper. A novel IPM rotor is designed considering various specifications such as force constant, torque constant and cogging torque. Cogging torque and resulting vibrations affects the motor and levitation operation significantly. Since the cogging torque is a result of the motor geometry, finite element (FE) simulation is used to simulate various rotor geometries to find the desired rotor configuration. FE simulations are also used to obtain other parameters like force and torque constant, and magnetic stiffness for designing control. The final design is fabricated and tested for closed loop levitation control and speed control. The simulation results and experimental control system performance is shown and explained in the paper.

Environmental radioactivity due to radon, thoron and their progenies in the ambient air in the multi-storeyed malls situated in Delhi National Capital Region (NCR) including district Faridabad, Haryana (India) was evaluated using LR-115 (type-II) SSNTDs. The average value of activity in different seasons due to radon and thoron varied from 18.45 ± 1.95 Bqm−3to 45.37 ± 4.69 Bqm−3and 10.64 ± 0.94 Bqm−3to 22.91 ± 1.88 Bqm−3respectively. The collective annual exposure and annual effective dose due to radon and thoron varied from 45.37 × 10−3WLM to 295.67 × 10−3WLM with an average value of (159.88 ± 3.66) × 10−3WLM, and 0.17 mSv to 1.13 mSv with an average value of 0.61 ± 0.01 mSv respectively during the four seasons of the year. Owing to poor ventilation in basement of malls, the annual effective dose is high compared with upper floors of the malls where proper ventilation is provided.

This indoor stadium with a seating capacity of 25,000 was built in 1982 in New Delhi. The structure is circular in plan with a diameter of 155 m.

This is one of the biggest aqueducts constructed in India. It was executed in 1978 by the Hindustan Construction Co, Bombay, for the Irrigation Department of Uttar Pradesh.