Optical differentiation and optical Hilbert transformation play important roles in communications, computing, information processing signal analysis domain offering huge bandwidth. Meanwhile, silicon-based photonic integrated circuit is one of the most promising candidates for all-optical due to its intrinsic advantages low power consumption, compact footprint, ultra-high speed compatibility with electronic circuits. In this study, we analyze interrelation between first-order then...

We compare several schemes for broadband optical frequency comb (OFC) generation based on nonlinear effects in highly fiber (HNLF). Cascaded four wave mixing (CFWM) and self-phase modulation (SPM) processes HNLF are proved to be effective ways spectrum broadening. investigate some parameters affecting the performance of output OFC detail. When only CFWM occurs HNLF, can generated with poor power flatness. SPM we obtain a 10 GHz 103 lines within 5-dB deviation. both simultaneously occur 143...

We propose and experimentally demonstrate a high-order photonic differentiator using on-chip complementary metal oxide semiconductor-compatible cascaded microring resonators, including first-, second-, third-order differentiators. All the resonator units have radius of 150 μm free spectral range 80 GHz. The can implement first-order derivative optical field near its critical coupling region. Hence higher-order differentiation be obtained by cascading more on single chip. For periodical...

Many blockchain-based crowdsourcing frameworks currently struggle to address the high costs associated with on-chain storage and computation effectively, they lack a quality-driven incentive mechanism tailored bounding box annotation scenarios. To these challenges, this paper proposes CrowdBA: A low-cost, architecture. The CrowdBA utilizes Ethereum public blockchain as foundational architecture develops corresponding smart contracts. First, by integrating InterPlanetary File System (IPFS),...

Abstract Animal models are indispensible to investigate the pathogenesis and treatments of non-alcoholic fatty liver diseases (NAFLD). Altered cholesterol metabolism has been implicated into NAFLD. Here, using high fat, cholate diet (HFHC), we generated a novel tree shrew ( Tupaia belangeri chinensis ) model NAFLD, which displayed dyslipidemia with increased levels plasma alanine aminotransferase (ALT) aspartate (AST), total (TC), low density lipoprotein-cholesterol (LDL-c) (HDL-c), but...

We propose and experimentally demonstrate a notch microwave photonic filter (MPF) with optimized performance (including the sub-gigahertz narrowband, ultra-high rejection ratio tunable bandwidth) based on two cascaded silicon Mach–Zehnder interferometers (MZI) coupled microring resonators (MRRs). The MRR structure is to obtain high quality (Q) factor (corresponding 3dB-bandwidth), adjustable bandwidths extinction ratios. One ring designed as over-coupled state π resonant peak phase shift...

We propose and demonstrate an optical arbitrary waveform generator high-order photonic differentiator based on a four-tap finite impulse response (FIR) silicon-on-insulator (SOI) on-chip circuit. Based amplitude phase modulation of each tap controlled by thermal heaters, we obtain several typical waveforms such as triangular waveform, sawtooth square Gaussian etc., assisted frequency comb injection. Unlike other proposed schemes, our scheme does not require spectral disperser which is...

The purpose of this study was to describe the population pharmacokinetics (PK) tacrolimus (TAC) in 52 Chinese pediatric patients early after liver transplantation.Details drug dose, sampling times and concentrations were collected retrospectively from routine therapeutic monitoring data first day surgery. A total 488 concentration obtained analyzed by a nonlinear mixed-effect modeling (NONMEM) method. number demographic clinical variables tested for their influence on TAC PK parameters.The...

We propose and demonstrate a silicon-on-insulator (SOI) onchip programmable filter based on four-tap finite impulse response structure.The photonic is thanks to amplitude phase modulation of each tap controlled by thermal heaters.We further the tunability central wavelength, bandwidth variable passband shape.The tuning range wavelength at least 42% free spectral range.The half range.Our scheme has distinct advantages compactness, capability for integrating with electronics.

Abstract Antibiotics are frequently used to clinically treat osteomyelitis caused by bacterial infections. However, extended antibiotic use may result in drug resistance, which can be life threatening. Here, a heterojunction comprising Fe 2 O 3 /Fe S 4 magnetic composite is constructed achieve short‐term and efficient methicillin‐resistant Staphylococcus aureus (MRSA). The exhibits powerful microwave (MW) absorption properties, thereby effectively converting incident electromagnetic energy...

We propose and experimentally demonstrate a continuously tunable all-optical microwave filter based on photonic crystal (PC) L3 cavity. Due to the small cavity mode volume prominent optical properties, required power arouse nonlinear effects is low as microwatt level. Moreover, resonance could be shifted by finely adjusting input powers. Therefore, under single sideband modulation, frequency interval between carrier controllable. In this case, central of (MPF) tuned with consumption. To best...

ABSTRACT Non-alcoholic fatty liver disease (NAFLD) is becoming a severe public health problem that affecting large proportion of the world population. Generally, NAFLD in patients usually accompanied by obesity, hyperglycemia, insulin resistance (IR) and type 2 diabetes (T2D), for which numerous animal models have been generated order to explore pathogenesis therapies NAFLD. On contrary, quite number subjects, especially Asian regions, are non-obese non-diabetic; however, few available...

Obesity plays crucial roles in the pathogenesis of metabolic diseases such as hyperlipidemia, nonalcoholic fatty liver disease (NAFLD), and type 2 diabetes (T2D). The underlying mechanisms linking obesity to are still less understandable.Previously, we screened a group spontaneously obese rhesus monkeys. Here, performed plasma lipidomic analysis normal monkeys using gas chromatography/mass spectroscopy (GC/MS) ultra-high performance liquid (UPLC/MS).In total, 143 lipid species were...

Arbitrary waveform generation has been widely used in optical communication, radar system and many other applications. We propose experimentally demonstrate a silicon-on-insulator (SOI) on chip arbitrary generator, which is based Taylor synthesis method. In our scheme, Gaussian pulse launched to some cascaded microrings obtain first-, second- third-order differentiations. By controlling amplitude phase of the initial successive differentiations, we can realize an generator according...

Physical layer security is a cross research hotspot of information and wireless communications. Recently, orbital angular momentum (OAM) technology has attracted widespread attention due to its potential improving capacity spectrum efficiency. However, there are few researches on system based OAM technology. In this work, we studied the proposed wiretap by applying physical theory Firstly, uniform circular array-based multi-mode derived secrecy capacity. Secondly, phase profiles, channel...

he Termolator is an open-source high-performing terminology extraction system, available on Github. The combines several different approaches to get superior coverage and precision. in-line term component identifies potential instances of using a chunking procedure, similar noun group chunking, but favoring chunks that contain out-of-vocabulary words, nominalizations, technical adjectives, other specialized word classes. distributional ranks such according metrics including: (a) set favors...

Free space optical (FSO) communication has attracted significant attention due to its high transmission rate and information security. Nevertheless, the FSO link is sensitive various weather conditions which limit application range. Thus, research on channel plays an important role for combatting fading. In paper, we first establish a testbed obtain received signal strength indication (RSSI) of signal. Then utilize environmental chamber indoor experiments simulate changes in real world....

Resource demands prediction has become a promising tool to facilitate automatic scaling of resource management, which makes it feasible reduce the cost and improve utilization in cloud. Most current methods are based on single model. However, load patterns usually diversity variability cloud, is hard get satisfactory performance through To solve this problem, LSRP proposed paper novel ensemble approach for prediction. The method contains two important learning phases. First, we use set...

Determining the liver changes during early stages of diabetes is critical to understand nature disease and development novel treatments for it. Advances in use animal models next-generation sequencing technologies offer a powerful tool connection between diabetes. Here, we created tree shrew model akin type 1 by using streptozotocin induce hyperglycemia hyperlipidemia. Using RNA-seq, compiled transcriptome profiles determine differentially expressed genes explore role changes. Our results,...