A flexible and robust method for assessing conditional association and conditional concordance

A Simplified Protocol for the Stereospecific Nickel-Catalyzed C–S Vinylation Using NiX2 Salts and Alkyl Phosphites

Synthesis ◽

10.1055/s-0039-1690717 ◽

2019 ◽

Vol 52 (02) ◽

pp. 311-319

Author(s):

Austin D. Marchese ◽

Bijan Mirabi ◽

Egor M. Larin ◽

Mark Lautens

Keyword(s):

Cross Coupling ◽

Robust Method ◽

Alkyl Phosphites

A Ni-catalyzed C–S cross-coupling using only NiI2 (0.5–2.5 mol%) and P(OiPr)3 (2.0–10.0 mol%) is reported. Using an air-stable Ni(II) precatalyst, and a cheap and commercially available ligand, a scalable and robust method was developed to cross-couple various thiophenols and styryl bromides, including some sterically encumbered thiols, an α-bromocinnamaldehyde as well as a thiolation-cyclization.

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Patch antenna sensor for wireless ice and frost detection

Scientific Reports ◽

10.1038/s41598-021-93082-2 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Ryan Kozak ◽

Kasra Khorsand ◽

Telnaz Zarifi ◽

Kevin Golovin ◽

Mohammad H. Zarifi

Keyword(s):

Resonant Frequency ◽

Patch Antenna ◽

Wide Band ◽

Power Lines ◽

Ice Thickness ◽

Ice Accretion ◽

Robust Method ◽

Frequency Shifts ◽

Resonant Amplitude ◽

Recorded Data

AbstractA patch antenna sensor with T-shaped slots operating at 2.378 GHz was developed and investigated for wireless ice and frost detection applications. Detection was performed by monitoring the resonant amplitude and resonant frequency of the transmission coefficient between the antenna sensor and a wide band receiver. This sensor was capable of distinguishing between frost, ice, and water with total shifts in resonant frequency of 32 MHz and 36 MHz in the presence of frost and ice, respectively, when compared to the bare sensor. Additionally, the antenna was sensitive to both ice thickness and the surface area covered in ice displaying resonant frequency shifts of 2 MHz and 8 MHz respectively between 80 and 160 μL of ice. By fitting an exponential function to the recorded data, the freezing rate was also extracted. The analysis within this work distinguishes the antenna sensor as a highly accurate and robust method for wireless ice accretion detection and monitoring. This technology has applications in a variety of industries including the energy sector for detection of ice on wind turbines and power lines.

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641 What Is the Most Reliable Way to Secure A Surgical Drain?

British Journal of Surgery ◽

10.1093/bjs/znab134.157 ◽

2021 ◽

Vol 108 (Supplement_2) ◽

Author(s):

B Hughes ◽

J Stallard ◽

S Jivan

Keyword(s):

Suture Material ◽

Suture Techniques ◽

Robust Method ◽

Suturing Technique ◽

The Moment ◽

Tissue Reactions ◽

Surgical Drain

Abstract Introduction Surgical drains are used by many specialities, we aim to determine the most robust method of securing them by comparing suturing technique, material and fixation angle. Method A Blake’s drain was inserted into a piece of pork belly and secured using a standard ‘three half hitch’ technique with 3.0 Silk, EthilonTM and ProleneTM . For each suture type, drains were sutured in line, at 45 and 90 degrees to the course of the drain. The force needed for the suture to failure was measured and each repeated 3 times. Different suture techniques were then used to determine the strongest fixation. Results With the drain exiting inline the moment of failure was, on average, 1.25kg for silk, 3.5kg for EthilonTM and 4.0kg for ProleneTM. Increasing drain fixation angle required more force for the suture to fail. With EthilonTM and ProleneTM, the suture snapped before the drain slipped. Three half hitches was the strongest technique. Conclusions Suture material, technique and drain fixation angle had an impact on suture strength with ProleneTM outperforming Silk. We advocate using a ‘three half hitch’ technique with 3.0 ProleneTM to secure a surgical drain. It offers superior strength whilst reducing the risk of localised tissue reactions.

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A robust method for the reliability-based design optimization of shape memory alloy actuator

Mechanics Based Design of Structures and Machines ◽

10.1080/15397734.2021.1873803 ◽

2021 ◽

pp. 1-19

Author(s):

Ahmed Yaich ◽

Fatma Abid ◽

Tarek Merzouki ◽

Abdelkhalak El Hami ◽

Lassaad Walha ◽

...

Keyword(s):

Shape Memory Alloy ◽

Shape Memory ◽

Design Optimization ◽

Robust Method ◽

Reliability Based Design Optimization ◽

Shape Memory Alloy Actuator ◽

Reliability Based Design

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Is centrifugal ultrafiltration a robust method for determining encapsulation efficiency of pesticide nanoformulations?

Nanoscale ◽

10.1039/d0nr08693b ◽

2021 ◽

Vol 13 (10) ◽

pp. 5410-5418

Author(s):

Rocío López-Cabeza ◽

Melanie Kah ◽

Renato Grillo ◽

Zuzana Bílková ◽

Jakub Hofman

Keyword(s):

Encapsulation Efficiency ◽

Robust Method ◽

Centrifugal Ultrafiltration

Encapsulation efficiency of nanoformulated pesticides is often determined by centrifugal ultrafiltration.

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A Robust Method for Dual Faceted Linearization

IFAC-PapersOnLine ◽

10.1016/j.ifacol.2020.12.1683 ◽

2020 ◽

Vol 53 (2) ◽

pp. 6095-6100

Author(s):

Yusuke Igarashi ◽

Masaki Yamakita ◽

Jerry Ng ◽

H. Harry Asada

Keyword(s):

Robust Method

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Oxazolinone derivative of leucine for GC-MS: a sensitive and robust method for stable isotope kinetic studies of lipoproteins

The Journal of Lipid Research ◽

10.1016/s0022-2275(20)30177-2 ◽

2002 ◽

Vol 43 (2) ◽

pp. 344-349 ◽

Cited By ~ 7

Author(s):

Kevin P. Dwyer ◽

P. Hugh R. Barrett ◽

Dick Chan ◽

Jock I. Foo ◽

Gerald F. Watts ◽

...

Keyword(s):

Stable Isotope ◽

Kinetic Studies ◽

Robust Method

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Efficient Reactive Obstacle Avoidance Using Spirals for Escape

Drones ◽

10.3390/drones5020051 ◽

2021 ◽

Vol 5 (2) ◽

pp. 51

Author(s):

Fábio Azevedo ◽

Jaime S. Cardoso ◽

André Ferreira ◽

Tiago Fernandes ◽

Miguel Moreira ◽

...

Keyword(s):

Unmanned Aerial Vehicles ◽

Mobile Robotics ◽

Point Clouds ◽

Depth Camera ◽

Main Task ◽

Robust Method ◽

Aerial Vehicles ◽

Correct Execution ◽

Low Altitude ◽

High Degree

The usage of unmanned aerial vehicles (UAV) has increased in recent years and new application scenarios have emerged. Some of them involve tasks that require a high degree of autonomy, leading to increasingly complex systems. In order for a robot to be autonomous, it requires appropriate perception sensors that interpret the environment and enable the correct execution of the main task of mobile robotics: navigation. In the case of UAVs, flying at low altitude greatly increases the probability of encountering obstacles, so they need a fast, simple, and robust method of collision avoidance. This work covers the problem of navigation in unknown scenarios by implementing a simple, yet robust, environment-reactive approach. The implementation is done with both CPU and GPU map representations to allow wider coverage of possible applications. This method searches for obstacles that cross a cylindrical safety volume, and selects an escape point from a spiral for avoiding the obstacle. The algorithm is able to successfully navigate in complex scenarios, using both a high and low-power computer, typically found aboard UAVs, relying only on a depth camera with a limited FOV and range. Depending on the configuration, the algorithm can process point clouds at nearly 40 Hz in Jetson Nano, while checking for threats at 10 kHz. Some preliminary tests were conducted with real-world scenarios, showing both the advantages and limitations of CPU and GPU-based methodologies.

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