This paper studies the design of a robust discrete-time sliding-mode control (DT-SMC) for high precision electrohydraulic actuator (EHA) system. Nonlinear friction in hydraulic can greatly influence performance and accuracy actuators, it is difficult to accurately model nonlinear characteristics. In this paper, proposed characterize frictions as an uncertainty system matrices. Indeed, effects variations coefficients are considered norm-bounded uncertainties that span bounded region cover...

We propose and demonstrate an optical signal processor performing matrix-vector multiplication, which is composed of laser-modulator array, multiplexer, splitter, microring modulator matrix photodetector array. 8 × 10⁷ multiplications accumulations (MACs) per second implemented at the clock a frequency 10 MHz. All functional units can be ultimately monolithically integrated on chip with development silicon photonics efficient high-performance computing system expected in future.

Cellular respiration is a worthwhile criterion to evaluate mitochondrial dysfunction by measuring the dissolved oxygen. However, most of existing sensing strategies merely report extracellular (ec-) or intracellular (ic-) O2 rather than intramitochondrial (im-) . Herein we present method assess tumor with three phosphorescent nanosensors, which respond ec-, ic-, and im-O2 Time-resolved luminescence applied determine respective oxygen consumption rates (OCRs) under varying respiratory...

We demonstrate a 40 Gbit/s silicon Mach-Zehnder optical modulator driven by differential voltage of 0.36 Vpp. The energy efficiency is as low 32.4 fJ/bit which near the power ring modulator. analyze relationship between electrical bandwidth and electro-optical (EO) based on S parameter measurement. Because nonlinear response, bandwidths in small-signal tests are slightly different when biased at transmission points. But EO response much phase change large enough to cover linear regions same...

In this paper, we report a facile route to synthesize mitochondria-targeted core–shell nanoparticles (NPs). Firstly, PLL-coated NPs are prepared by one-step reprecipitation-encapsulation method assisted positively charged poly-L-lysine (PLL). The effect of the molecular weight PLL on formation particles is studied in terms morphology, size and zeta potential, medium-sized (MH-PLL) proved be optimum one. By means crosslinking with different amounts glutaraldehyde, amino groups MH-PLL-NPs...

Wide-swath and high-resolution Thermal infrared (TIR) data are limited by the mutual constraint between swath resolution. In this paper, we propose a whisk-broom imaging method with long-linear-array (LLA) 4-stage TDI detector (a total of 2048 pixels along splicing direction) high-precision one-dimensional scanning mirror to achieve 30 m resolution 300 km swath. And it is being implemented in first SDGs satellite (SATSAT-1) thermal spectrometer (TIS). Specially, integration time system speed...

Computational spectrometers based on coded measurement and computational reconstruction have great application prospects. This paper proposes a spectrometer that has low cost, is easy to implement in hardware, high accuracy. The proposed uses low-cost but highly correlated polymethyl methacrylate (PMMA) material as broadband encoding filters, which could affect spectral To alleviate this issue, we decoupled the sensing matrix, product of matrix sparse base subsequently optimized...

Abstract Cellular respiration is a worthwhile criterion to evaluate mitochondrial dysfunction by measuring the dissolved oxygen. However, most of existing sensing strategies merely report extracellular (ec‐) or intracellular (ic‐) O 2 rather than intramitochondrial (im‐) . Herein we present method assess tumor with three phosphorescent nanosensors, which respond ec‐, ic‐, and im‐O Time‐resolved luminescence applied determine respective oxygen consumption rates (OCRs) under varying...

We propose and demonstrate a directed optical logic circuit that performs the encoding function from 4 bit electrical signal to 2 based on cascaded microring switches. The four input signals control states of switches, while two outputs are given by power at output waveguides. For proof concept, thermo-optic switching effect is used with an operation speed 10 kbps.

Abstract Background The mandibular second molars demonstrate variations on root and canal morphology. aim of this study was to investigate all the morphology analyze morphological in patients by gender age a Chinese population use CBCT imaging. Methods Cone-beam computed tomographic images 1200 bilateral were obtained from 600 (300 females 300 males) who required preoperative assessment for implant surgery, surgical removal impacted teeth, orthodontic treatment, surgery maxillofacial tumour...

We propose and demonstrate a directed optical decoder that can perform the decoding function from two-bit electrical signal to four-bit based on two cascaded microring resonators. use signals regarded as modulate resonators through thermo-optic effect four appear at output ports, respectively. The device operating 10 kbps is demonstrated.

As is commonly understood, the root canal morphology of maxillary molars usually complex and variable. It sometimes difficult to detect distobuccal orifice a second molar with treatment. No literature related canals has been published.To investigate position in Chinese population using cone-beam computed tomography (CBCT).In total, 816 from 408 patients were selected scanned CBCT. The following information was recorded: (1) number per tooth, (2) distance between mesiobuccal (DM), (3) palatal...

We report an electro-optic directed logic circuit which can implement the AND/NAND operations based on two parallel microring resonators. PIN diodes are embedded around resonators to achieve carrier-injection modulation, electrical pulse sequences regarded as operands of employed modulate through plasma dispersion effect. The operation results obtained at optical output ports in form light. Microheaters fabricated top compensate resonance mismatch caused by fabrication errors thermo-optic...

This study presents $e\phantom{\rule{0}{0ex}}x\phantom{\rule{0}{0ex}}p\phantom{\rule{0}{0ex}}e\phantom{\rule{0}{0ex}}r\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}m\phantom{\rule{0}{0ex}}e\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}t\phantom{\rule{0}{0ex}}a\phantom{\rule{0}{0ex}}l$ evidence of nonclassical optical bistability, in the context photon-pair generation via spontaneous four-wave mixing a silicon microring resonator. The hysteresis results greatly benefit on-chip quantum...

Geometric positioning of a remote sensing image is one the core technologies for quantitative application geostationary satellite data. Affected by change incident angle sunlight, spatial thermal environment surrounding cameras (RSCs), especially RSCs, fluctuates greatly and has noticeable impact on installation matrix based reference to body. Therefore, will ultimately influence camera's geometric model final accuracy. This paper proposes novel correction method stellar observations...

Optical computing is a new method to implement signal processing functions. The multiplication between vector and matrix an important arithmetic algorithm in the domain. optical vector-matrix multiplier (OVMM) optoelectronic system carry out this operation, which consists of electronic module module. In paper, we propose for OVMM. To eliminate cross talk make full use elements, elaborately designed structure that involves spherical lenses cylindrical utilized system. design software package...

Matrix-vector multiplication is a fundamental operation in modern digital signal processing. Inspired by the intrinsic spatial parallelism of optics, many efforts have been made to develop optical apparatuses that can perform such parallelizable operation. Here we report proposal an on-chip processor with function matrixvector multiplication, which composed laser-modulator array, multiplexer, splitter, microring modulator matrix and photodetector array. We fabricate 4×4 on...