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Measurement of hemostatic parameters is essential for patients receiving long-term oral anticoagulant agents. In this paper, we present a shear mode bulk acoustic resonator based on an inclined c-axis aluminum nitride (AlN) film for monitoring the human hemostatic parameters. During the blood coagulation process, the resonant frequency of the device decreases along with a step-ladder profile due to the viscosity change during the formation of fibers in blood, revealing the sequential coagulation stages. Two hemostatic parameters with clinical significance, prothrombin time (PT) along with its derived measure of international normalized ratio (INR), are determined from time-frequency curves of the device. Furthermore, the resonator is compared with a commercial coagulometer by monitoring the hemostatic parameters for one month in a patient taking the oral anticoagulant. The results are consistent. In addition, thanks to the excellent potential for integration, miniaturization and the availability of direct digital signals, the proposed device has promising application for point of care coagulation monitoring.

In this paper, we characterized and compared signal transmission performances of traces with different specifications of fiber weave. Measurements demonstrated that the dielectric constant, impedance fluctuation, and differential skew were all affected by fiber weave style. For flattened fiber weaves, the dielectric constant fluctuation reached 0.18, the impedance fluctuation amplitude was 1.0 Ω, and the differential skew was 2 ps/inch. For conventional fiber weaves, the three parameters were 0.44, 2.5 Ω, and 4 ps/inch respectively. Flattened fiber weave was more favorable for high-speed signal control. We also discussed the other methods to improve the fiber weave effect. It turned out that NE-glass (new electronic glass) fiber weave also had better performance in reducing impedance fluctuation and differential skew. Furthermore, made the signal traces and fiber weave bundles with an angle or designing the long signal line parallel to the weft direction both are simple and effective methods to solve this problem.

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The needs of visualization of multidimensional information of the earth, 3D virtual construction, and engineering design are driving research into some technologies of 3D landscape interactive design. The function and availability of the 3D landscape interactive system are largely determined by an efficient interactive algorithm, which is an essential part of the interactive design system of commercial architecture landscape. This paper investigates and evaluates the current state of 3D landscape intersection in landscape design, compares and evaluates existing 3D landscape modeling methods, and proposes some recommendations for the feasibility of a 3D commercial building performance scheme that will serve as a model for future large-scale urban commercial building landscape modeling. When the landscape is represented by objective substances like visual images, people are more likely to actively engage with nature and make automatic decisions based on physiological responses. The introduction of 3D technology has given people’s lives a new lease on life, and it is critical to optimize urban planning and management.

Carbon fiber (CF) nonwoven fabric possesses excellent chemical resistance, remarkable electrical properties, and low density, but its mechanical strength must be enhanced to facilitate its application. Therefore, a flexible compound nonwoven fabric (CEF-NF) consisting of CF and a bicomponent polypropylene/polyethylene core/sheath fiber (known as ESF) was prepared using a 2-step wet papermaking/ thermal bonding process. Scanning electron microscopy observations indicated that the CEF-NF fibrous network could be strengthened without blocking its pores by using a heat-pressing temperature falling between the melting regions of the sheath polyethylene and core polypropylene. Additionally, uniaxial tensile experiments were conducted to investigate the failure mode and tensile properties of the CEF-NF by varying the thermal bonding and structural parameters. The results showed that 3 failure modes of fiber physical contact separation, thermal bond breakage, and ESF fracture emerged and could be defined based on the variation in the heat-pressing temperature. The tensile strength of the CEF-NF was improved with increasing thermal bonding and structural parameters. Under a set of process parameters, ie, 180°C heat-pressing temperature, 6-MPa heat-pressing pressure, 40 wt% ESF mass fraction, and 40-gsm areal density, the tensile strength of CEF-NF reached 5.7 MPa, which is much higher than that of pure CF nonwoven fabric.