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The development of metal–organic frameworks for carbon dioxide (CO2) capture has drawn considerable interest among researchers with MIL-101(Cr) gaining significance owing to its high stability. This paper investigates the one-step synthesis of MIL-101-NH2(Cr) by using guanidine hydrochloride as a mediator under relatively mild conditions (aqueous phase, reaction temperature of 120 °C, and without the use of mineralization agents such as hydrofluoric acid). MIL-101-NH2(Cr) not only exhibited a high specific surface area with a Lewis-base site-rich ligand but also possessed a good CO2 adsorption capacity of 3.96 mmol/g at 1 bar. Furthermore, diethylenetriamine (DETA) was loaded into MIL-101-NH2(Cr) to design a new CO2 adsorbent DETA@MIL-101-NH2(Cr). The loaded material maintained the original structure and also displayed an improved adsorption capacity of 0.29 mmol/g under low (< 0.11 bar) CO2 partial pressure. The absorbents possessed good selectivity, stability, and recyclability which make them ideal candidates for CO2 capture. [ABSTRACT FROM AUTHOR]

Cnidium monnieri, a medicinal herb of the Cnidium genus and the Apiaceae family, is among the most important traditional Chinese medicines and is widely distributed in China. However, to date, no C. monnieri-related genomic information has been described. In this study, we assembled the C. monnieri genome of approximately 1210.23 Mb with a contig N50 of 83.14 Mb. Using PacBio HiFi and Hi-C sequencing data, we successfully anchored 93.86% of the assembled sequences to 10 pseudochromosomes (2n = 20). We predicted a total of 37,460 protein-coding genes, with 97.02% of them being functionally annotated in Non-Redundant, Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, and other databases. In addition, we identified 2,778 tRNAs, 4,180 rRNAs, 258 miRNAs, and 1,700 snRNAs in the genome. This is the first reported C. monnieri genome. Hopefully, the availability of this chromosome-level reference genome provides a significant basis for upcoming natural product-related biosynthetic pathway assessment in C. monnieri. [ABSTRACT FROM AUTHOR]

This paper presents a forensic numerical study on hydro-fracturing at three locations within an excavation in a clayey till underlain by an aquifer in Ontario, Canada. The pioneering forensic studies were based on continuum mechanics using finite element method (FEM) combined with an effective medium approach, which did not explicitly simulate the physical process of fracture propagation. This has overestimated the size of the venting holes (i.e., model aperture approximately 8 m, observed approximately 0.1 m), hindering accurate assessment of the venting locations at the excavation base. For this reason, a coupled hydro-mechanical XFEM analysis, which explicitly models fracture propagation, was performed in this study to revisit the case history from the perspective of fracture mechanics. Parametric study is also performed to investigate the influence of flow rate on the direction of the fracture propagation, and thus location of venting holes. It is shown that the coupled hydro-mechanical XFEM analysis offers better predictions than previous FEM analysis for both, locations and sizes of the three observed venting holes. The parametric study reveals that an increase in the flow rate from 5 to 10 L/min (which is within the reported range) leads to a wider and less curved fracture, altering the predictions of the venting locations at the excavation base by around 8 m. This is because an increasing flow rate causes wider aperture and higher shear stress near the fracture tip, which intensifies the re-orientation of maximum principle stress that facilitates the re-direction of the propagating fractures. [ABSTRACT FROM AUTHOR]

Basketball motion image recognition is a challenging task, and traditional methods often face many limitations and difficulties. The purpose of this study is to explore the application of near-infrared spectral imaging and artificial intelligence technology in basketball motion image recognition to improve the recognition accuracy and robustness. In this paper, the near infrared spectral data of basketball movement images are collected, and an artificial intelligence classification model is established based on these data. The experimental results show that the basketball motion image recognition method based on near-infrared spectral imaging and artificial intelligence technology has achieved significant improvement in accuracy and robustness. Compared with traditional methods, our model can still perform accurate classification stably under different lighting conditions. This study proves the potential application of near-infrared spectral imaging and artificial intelligence classification in basketball motion image recognition. This method has important practical application value. The method can be further explored and optimized in the future to adapt to a wider range of motion scenarios and task requirements. [ABSTRACT FROM AUTHOR]

The additive manufacturing of titanium alloy parts has important scientific significance and practical value. Controlling the distribution of residual stress caused by the high cooling rate and temperature gradient is the key to regulating the performance of devices obtained from additive manufacturing. In this work, the effects of the interlayer scanning angle on the residual stress in Ti–6Al–4V parts manufactured by selective laser melting were investigated by finite element simulations. We studied how changing the interlayer deflection angle alleviated residual stress under different energy inputs. The results showed that the residual stress in the z-direction was reduced by the deflection angle of 67° and 90°, and the non-uniform distribution of residual stress was reduced by a deflection angle of 67°. The combination of a chessboard pattern and interlayer deflection angle greatly alleviated the generation of residual stress. This work has important guiding significance for the additive manufacturing design of high-quality and high-performance titanium alloy devices. [ABSTRACT FROM AUTHOR]

As one of the most appealing strategies for the synthesis of nanomaterials with various architectures, emulsion-directed methods have been rarely used to control the structure of metal-organic frameworks (MOFs). Herein, we report a versatile salt-assisted nanoemulsion-guided assembly to achieve continuous architecture transition of hierarchical Zr-based MOFs. The morphology of nanoemulsion can be facilely regulated by tuning the feed ratio of a dual-surfactant and the introduced amount of compatible hydrophobic compounds, which directs the assembly of MOFs with various architectures such as bowl-like mesoporous particle, dendritic nanospheres, walnut-shaped particles, crumpled nanosheets and nanodisks. The developed dendritic nanospheres with highly open and large mesochannels is successfully used as matrix for the co-immobilization of coenzymes and corresponding enzymes to realize the in situ heterogeneous regeneration of NAD+. This strategy is expected to pave a way for exploring sophisticated hierarchical MOFs which can be competent for practical applications with bulk molecules involved. Controlling the structure of hierarchical metal-organic frameworks via soft template remains a challenge. Here, the authors report a salt-assisted nanoemulsion-guided strategy to achieve continuous structure transition of hierarchical Zr-based MOFs. [ABSTRACT FROM AUTHOR]

The article "Application of near-infrared spectral imaging and artificial intelligence classification in basketball motion image recognition" published in Optical & Quantum Electronics has been retracted due to concerns raised by the Publisher and Editors-in-Chief. The investigation revealed issues such as manipulation of the peer review process, irrelevant references, and attempts to compromise the publishing process. The authors have not responded to the retraction. Springer Nature maintains neutrality in this matter. [Extracted from the article]

Peucedani Radix is the dry root of Peucedanum praeruptorum of the umbelliferous family, but the dry root of Angelica decursiva was also the source of Peucedani Radix in the past. As one of the most popular traditional Chinese medicinal herbs, the certified source of Peucedani Radix is still disputed. To better understand the relationship between A. decursiva and P. praeruptorum, we sequenced their chloroplast (cp) genomes. The gene structure, codon usage bias, repeat, simple sequence repeat (SSR), as well as their borders of inverted repeat (IR) regions of the two cp genomes are analyzed to identify potential genetic markers. Great variation is exhibited in the repeat sequences of IR, large single copy regions and the SSRs of the two cp genomes, which can be used as molecular markers to distinguish them. The phylogenetic analysis also indicates that they belong to two different genera in Apiaceae family: A. decursiva is an Angelica plant and P. praeruptorum is a Peucedanum plant. Our observations suggest that the two species are somewhere different in gene features, which contributes to support A. decursiva as an independent species from P. praeruptorum. The results also provide new evidence that A. decursiva should not be regarded as the certified source of Peucedani Radix in taxonomy. [ABSTRACT FROM AUTHOR]

The stability of excavation face in shield tunneling plays a key role for construction safety. The ignorance of soil anisotropy in most previous studies would induce inaccurate stability assessment. This paper studies the failure of shield tunnel face in cross-anisotropic granular media by physical model tests and discrete element simulation. Model tests were carried out on the tunnel face stability in anisotropic granular media, and initial anisotropy was generated by controlling the long axis of non-spherical particles. By conducting image analysis on the picture taken by HD camera, the failure mode of tunnel face was obtained. It consists of a sliding wedge and an overlying loosen area, and the inclination angle of sliding wedge varies with the bedding plane. The variation in limit support pressure with the intersection angle of the shield tunneling direction and the soil bedding plane was obtained. Discrete element simulation was further employed to study the tunnel face stability in cross-anisotropic granular media; the microscopic parameters were calibrated by fitting against the particle drop test and repose test. Clump particle consisted of three identical ball was used in the simulations, and its long and short axes were in accordance with rice particles. The obtained varying characteristic of limit support pressure with intersection angle from simulation is consistent with the test results, and the obtained failure mode is also similar to that of physical model test. The principal stress distribution at failure state was analyzed in the discrete element simulation, and the change of major principal stress direction from vertical to nearly horizontal in the loosen area clearly shows the formation of soil arches. [ABSTRACT FROM AUTHOR]

Key Message: Psoralen synthase and angelicin synthase responsible for the formation of psoralen and angelicin in Peucedanum praeruptorum Dunn were identified and functionally characterized, respectively. Furanocoumarins were reported to possess several activities such as anticancer, anti-inflammatory and neuroprotective, and function as phytotoxin and allelochemical in plants. Furanocoumarins are the main bioactive ingredient in P. praeruptorum which is a commonly used traditional Chinese medicine. Phenylalanine ammonia lyase (PAL), 4-coumarate: CoA ligase (4CL), p-coumaroyl CoA 2'-hyfroxylase (C2'H) were cloned previously to elucidate the biosynthetic mechanism of coumarin lactone ring. However, the genes involved in complex coumarins in P. praeruptorum have not been explored. Herein, putative psoralen synthase CYP71AJ49 and angelicin synthase CYP71AJ51 were cloned from P. praeruptorum. In vivo and in vitro yeast assays were conducted to confirm their activities. Furthermore, the results of High Performance Liquid Chromatography–Electrospray Ionization Mass Spectrometry (HPLC–ESI–MS) verified that CYP71AJ49 catalyzed the conversion of marmesin to psoralen, and CYP71AJ51 catalyzed columbianetin to angelicin. Subsequently, the expression profile showed that CYP71AJ49 and CYP71AJ51 were easily affected by environmental conditions, especially UV and temperature. The genes tissue-specific expression and compounds tissue-specific distribution pattern indicated the existence of substance transport in P. praeruptorum. Phylogenetic analysis was conducted with 27 CYP71AJs, CYP71AJ49 and CYP71AJ51 were classified in I-4 and I-2, respectively. These results provide further insight to understand the biosynthetic mechanism of complex coumarins. [ABSTRACT FROM AUTHOR]

Unlike the crystalline solids, the atomic arrangements in amorphous solids lack long-range translational and orientational order. Despite intense research activity on their structures, the details of how the atoms are packed in amorphous solids remain mysterious at present. Here, we propose a structure feature like polymers and estimate the nanoscale of short-range order (SRO) and medium-range order (MRO) in this description according to the boson peak in amorphous solids. The result supports the concepts that (a) the low-frequency local vibrations are defined by the characteristic length of nanoscale clusters and (b) a decisive scale correlation of solvent atoms, SRO and MRO is about 1:3:7 in amorphous solids. [ABSTRACT FROM AUTHOR]

The objective of this study is to identify individual-level factors and health venue utilization patterns associated with uptake of pre-exposure prophylaxis (PrEP) and to evaluate whether PrEP uptake behavior is further diffused among young men who have sex with men (YMSM) through health venue referral networks. A sample of 543 HIV-seronegative YMSM aged 16–29 were recruited in 2014–2016 in Chicago, IL, and Houston, TX. Stochastic social network models were estimated to model PrEP uptake. PrEP uptake was associated with more utilization of health venues in Houston and higher levels of sexual risk behavior in Chicago. In Houston, both Hispanic and Black YMSM compared to White YMSM were less likely to take PrEP. No evidence was found to support the spread of PrEP uptake via referral networks, which highlights the need for more effective PrEP referral network systems to scale up PrEP implementation among at-risk YMSM. [ABSTRACT FROM AUTHOR]

During the planar lightwave circuit (PLC) splitter manufacturing process, high precision is essential. Controlling machining precision is extremely difficult during the high-speed-and-precision dicing process, which is empirically related to the rotational speed, static diameter and elastic modulus of diamond dicing blades and other factors. However, the effect of changes in the outer diameter of blades on machining precision has been disregarded in the PLC manufacturing process. In this research, we proposed a dynamic diameter (Dd) for describing changes in a blade's outer diameter during the high-speed machining process. Dd is positively correlated with machining precision. Here, we derived a formula for calculating Dd that is related to the rotational speed, static diameter, elastic modulus, Poisson's ratio, density, cutting length and radial wear rate of diamond dicing blades. Furthermore, a series of experimental Dd values was obtained by changing the rotational speed, static diameter and elastic modulus of diamond dicing blades. These values are highly consistent with the calculated results. Our findings not only provide clues to compensate for diameter during high-speed-and-precision dicing process, but also offer guidelines for a new design route of diamond tools. [ABSTRACT FROM AUTHOR]

Face alignment and segmentation are challenging problems which have been extensively studied in the field of multimedia. These two tasks are closely related and their learning processes are supposed to benefit each other. Hence, we present a joint multi-task learning algorithm for both face alignment and segmentation using deep convolutional neural network (CNN). The proposed multi-task learning approach allows CNN model to simultaneously share visual knowledge between different tasks. With a carefully designed refinement residual module, the cross-layer features are fused in a collaborative manner. To the best of our knowledge, this is the first time that face alignment and segmentation are learned together via deep multi-task learning. Our experiments show that learning these two related tasks simultaneously builds a synergy between them, improves the performance of each individual task, and rivals recent approaches. Furthermore, we demonstrate the effectiveness of our model in two practical applications: virtual makeup and face swap. [ABSTRACT FROM AUTHOR]

Shear band (SB) multiplication is considered as an essential characteristic of the plastic deformation in metallic glasses (MGs). In this work, the evolutionary characteristics of SBs and serrated behavior in ductile Fe50Ni30P13C7 MGs were studied by the finite element method simulation. The study demonstrated that the stress field would redistribute and become inhomogeneous during SB sliding, where the stress perpendicular to the original SB gradually accumulates until reaching the magnitude of yielding strength and triggering new SBs. The results of simulation are in good agreement with the SBs intersection morphologies observed in SEM images and the serration flows on the stress-strain curves. Furthermore, several factors affecting stress field distribution in MGs, such as contact friction, aspect ratio, and boundary confinement, were also analyzed and discussed. The overall results indicate that the ductility of Fe-based MGs could be achieved without any inhomogeneous structure, and scientifically explicate the dependence of SB multiplication on both material properties and loading condition, which can provide us with a deeper understanding on plastic deformation mechanism of MGs. [ABSTRACT FROM AUTHOR]

In pursuing excellent supercapacitor electrodes, we designed a series of MoS2/CoS2 composites consisting of flower-liked MoS2 and octahedron-shaped CoS2 through a facile one-step hydrothermal method and investigated the electrochemical performance of the samples with various hydrothermal time. Due to the coupling of two metal species and a big amount of well-developed CoS2 and MoS2, the results indicated that the MoS2/CoS2 composites electrodes exhibited the best electrochemical performance with a large specific capacitance of 490 F/g at 2 mV/s or 400 F/g at 10 A/g among all samples as the hydrothermal time reached 48 h (MCS48). Furthermore, the retention of MCS48 is 93.1% after 10000 cycles at 10 A/g, which manifests the excellent cycling stability. The outstanding electrochemical performance of MCS48 indicates that it could be a very promising and novel energy storage material for supercapacitors in the future. [ABSTRACT FROM AUTHOR]

A facile one-step hydrothermal process was used to prepare MoS2/CoS2 binary composite as electrode material for supercapacitors with outstanding energy storage performance. The microstructure and morphology characterized by XRD, XPS, SEM and TEM analyses reveals that the MoS2/CoS2 binary composite is composed of octahedron-shaped CoS2 and flower-liked MoS2. For comparison, MoS2 was prepared through the same process, and its electrochemical performance was systematically investigated as well. Taking advantage of coupling two metal species, large surface areas and the tunable compositions, the obtained MoS2/CoS2 binary composite electrodes exhibit higher specific capacitance of 549 F/g at 2 mV/s or 434 F/g at 1 A/g than that of MoS2. In addition, the retention of MoS2/CoS2 binary composite is 91.6% after 10,000 cycles at 10 A/g, which manifests the excellent cycling stability. All these merits endow MoS2/CoS2 binary composite a potential supercapacitor electrode material for future application. [ABSTRACT FROM AUTHOR]

Although many primates are identified as effective endozoochorous seed dispersers in forest ecosystems, epizoochorous seed dispersal by primates has generally been overlooked. In this study, we report epizoochorous seed dispersal in a group of free-ranging golden snub-nosed monkeys (Rhinopithecus roxellana) residing in the temperate forests of central China by identifying seeds carried by 12 well-habituated individuals. The results showed a total of 1920 seeds (five families, seven genera) belonging to eight plant species attached to the monkeys’ fur; the three most abundant species were Geum aleppicum (54% of the total), Torilis japonica (17%), and Agrimonia pilosa (14%). The majority of seeds (95.3%) that attached to the monkeys’ fur had special morphologies such as hairs, hooks, or awns. We also found that the quantity of seeds attached to the fur was not significantly different by age-sex class, even though adult males have very long fur. Our study provides the first empirical evidence of epizoochorous seed dispersal by primates and suggests the role of primates in seed dispersal may be greater than previously assumed. [ABSTRACT FROM AUTHOR]

Key message: A p-coumaroyl CoA 2′-hydroxylase responsible for the formation of coumarin lactone ring was identified from Peucedanum praeruptorum Dunn and functionally characterized in vitro. Abstract: Coumarins are important plant secondary metabolites with a variety of biological activities. Ortho-hydroxylation of cinnamates leads to the formation of coumarin lactone ring and is generally thought to be a key step in coumarin biosynthesis. However, ortho-hydroxylases, especially p-coumaroyl CoA 2′-hydroxylase (C2′H) responsible for the biosynthesis of the most common coumarin skeleton, have received insufficient attention. Here, a putative ortho-hydroxylase PpC2′H was isolated from P. praeruptorum Dunn, a traditional Chinese medicinal herb rich in coumarins. Expression profile indicated that PpC2′H exhibited the highest transcript level in roots and could be up-regulated by MeJA elicitation. Subcellular localization of PpC2′H was demonstrated to be cytosol in planta. In order to functionally characterize PpC2′H, the purified recombinant protein was incubated with various potential substrates. HPLC-ESI-MS analysis indicated that PpC2′H catalyzed the conversion of p-coumaroyl CoA into hydroxylated intermediate, which then underwent spontaneous lactonization to generate umbelliferone. Our data also showed that light would promote the spontaneous process. In addition, based on homology modeling and site-directed mutagenesis, amino acid residues Phe-130, Lys-141, Asn-207, His-224, Asp-226, His-282 and Phe-298 were verified essential for enzymatic activity. These findings provide insight into structure-function relationship of this pivotal ortho-hydroxylase and also contribute to elucidating the biosynthetic mechanism of coumarin skeleton. [ABSTRACT FROM AUTHOR]

MnO nanomaterials are synthesized via calcinations in air at various temperatures. Amorphous MnO masses appear between 100 and 300 °C and nanorods form above 400 °C. Transmission and scanning electron microscopy are used to observe the geometries of each material, with further structural analyses conducted using X-ray photoelectron spectroscopy, X-ray diffraction, and BET method. The electrochemical properties are investigated through galvanostatic charge/discharge cycling, electrochemical impedance spectra, and cyclic voltammetry within a three-electrode test cell filled with 1 mol L NaSO solution. The slightly asymmetric galvanostatic cycling curves suggest that the reversibility of the Faradaic reactions are imperfect, requiring a larger time to charge than discharge. The specific capacitances of each sample are calculated and trends are identified, proving that the samples synthesized at higher temperatures exhibit poorer electrochemical behaviors. The highest calculated specific capacitance is 175 F g by the sample calcinated at 400 °C. However, the lower temperature samples exhibit more favorable geometric properties and higher overall average specific capacitances. For future research, it is suggested that surface modifications such as a carbon coating could be used in conjunction with the MnO nanorods to reach the electrochemical properties required by contemporary industrial applications. [ABSTRACT FROM AUTHOR]

Purpose: This study was aimed at exploring the use of liposomes to deliver aquated cisplatin (ACP), a metabolite of CDDP, with increased potency and toxicity. Three liposomal formulations were compared for delivery of ACP to a multidrug resistant tumor. Methods: Three different liposomes (DMPC, DPPC and DSPC as the main lipid components) were loaded with ACP by the thin-film hydration method. In vitro drug release was assessed over 72 h at 37°C in PBS. The pharmacokinetics of free CDDP and the three ACP liposomes was determined using ICP-AES and their efficacy against EMT6-AR1 multidrug resistant murine breast tumor was compared. Results: The DSPC formulation, composed of a C18 acyl chain lipid, exhibited the slowest drug release (~2%) after 72 h at 37°C, compared to the other two formulations with decreased carbon chain lengths (C16 and C14; 7 and 25% release respectively). The pharmacokinetic profile was improved with all liposomal formulations relative to free CDDP, with clearance reduced by 500-fold for DSPC, 200-fold for DPPC and 130-fold for DMPC. The DSPC formulation displayed the highest drug accumulation in the tumor with 2-fold, 3-fold and 100-fold increases compared to DPPC, DMPC and free CDDP respectively. The DSPC formulation significantly inhibited the EMT6-AR1 tumor growth by ~90%, while the other formulations displayed no statistically significant improved activity compared to saline. Conclusion: These results suggest that the DSPC liposomal formulation is a promising formulation for MDR tumor therapy over DMPC and DPPC formulations and free drug. [ABSTRACT FROM AUTHOR]

In this work, three kinds of ultrathin tremella-like MnO have been simply synthesized by decomposing KMnO under mild hydrothermal conditions. When applied as electrode materials, they all exhibited excellent electrochemical performance. The asprepared MnO samples were characterized by means of XRD, SEM, TEM and XPS. Additionally, the relationship of the crystalline nature with the electrochemical performance was investigated. Among the three samples, the product with the poorest crystallinity had the highest capacitance of 220 F/g at a current density of 0.1 A/g. It is thought that the ultrathin MnO nanostructures can serve as promising electrode materials for supercapacitors. [ABSTRACT FROM AUTHOR]

theoretical model of effective magnetostriction for nanocrystalline magnetic alloys was proposed considering the effects of impurity phases. The dependence of effective magnetostriction on the volume fraction of different components determined by annealing conditions was analyzed. Moreover, the phenomenon that the effective magnetostriction has a valley value which can't be explained previously was interpreted perfectly by using this model. The results of theoretical analysis are in excellent agreement with existing experimental data. [ABSTRACT FROM AUTHOR]

Onion-like carbon (OLC) was synthesized by annealing nanodiamond in low vacuum of 1 Pa and at annealing temperatures from 500°C to 1400°C. The high-resolution transmission electron microscope (HRTEM) images, X-ray diffraction (XRD) and Raman spectrum of the OLC showed that there was no OLC when the annealing temperature was lower than 900°C. Moreover, the fragment amorphous carbon existed on the surfaces of the nanodiamond particles. At the annealing temperature of 900°C, the OLC particles began appearing and the size of the OLC particles was smaller than 5 nm. When the annealing temperature was increased from 900°C to 1400°C, the nanodiamond was transformed into OLC gradually. At the annealing temperature of 1400°C, all the nanodiamond particles were transformed into OLC completely. The OLC exhibited similarity to the original nanodiamond particles in shape. A mechanism for the OLC synthesis by annealing was provided. The graphitization started at the surfaces of the nanodiamond particles. The formation process of the OLC includes formation of graphite fragments, connection and curvature of graphite sheets between diamond (111) planes and closure of the graphite layers. [ABSTRACT FROM AUTHOR]

Onion-like carbon (OLC) was fabricated by annealing nanodiamond at 1000 °C for 2 hours in low vacuum (1 Pa). The OLC was characterized by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and differential scanning calorimetry (DSC). The experimental results show that the OLC exhibits similarity to the original nanodiamond particles in shape. The size of the OLC is found to be approximately 5 nm. The transformation mechanism of the OLC from nanodiamond was discussed also. [ABSTRACT FROM AUTHOR]

Connecting an input port and an output port of a single-mode fiber coupler to form a fiber-loop, and making the time delay of the fiber-loop odd multiple of the half-period of the input optical pulse stream, we can obtain a pulse stream with multiplying repetition rate at the other output port of the coupler. Utilizing three loop-connecting fiber couplers cascaded, a pulse stream with eight times the repetition rate is achieved. [ABSTRACT FROM AUTHOR]

A novel method utilizing a cantilever beam to tune the center wavelength and the linear chirp of fiber gratings is presented. Based on this method, the center wavelength and the chirp of a 10 cm uniform fiber grating are tuned to compensate for the dispersion of 19 ps pulse width after 133 km transmission. Experimental results show that the effect of dispersion compensation is favorable. [ABSTRACT FROM AUTHOR]

Opium poppy is one of the most important medicinal plants and remains the only commercial resource of morphinan-based painkillers. However, little is known about the regulatory mechanisms involved in benzylisoquinoline alkaloids (BIAs) biosynthesis in opium poppy. Herein, the full-length transcriptome dataset of opium poppy was constructed for the first time in accompanied with the 33 samples of Illumina transcriptome data from different tissues, growth phases and cultivars. The long-read sequencing produced 902,140 raw reads with 55,114 high-quality transcripts, and short-read sequencing produced 1,923,679,864 clean reads with an average Q30 rate of 93%. The high-quality transcripts were subsequently quantified using the short reads, and the expression of each unigene among different samples was calculated as reads per kilobase per million mapped reads (RPKM). These data provide a foundation for opium poppy transcriptomic analysis, which may aid in capturing splice variants and some non-coding RNAs involved in the regulation of BIAs biosynthesis. It can also be used for genome assembly and annotation which will favor in new transcript identification. Design Type(s) transcription profiling design • sequence annotation objective • organism part comparison design Measurement Type(s) transcription profiling assay Technology Type(s) RNA sequencing Factor Type(s) cultivar • developmental stage • organism part Sample Characteristic(s) Papaver somniferum • root • stem • leaf Machine-accessible metadata file describing the reported data (ISA-Tab format) [ABSTRACT FROM AUTHOR]