gebhart/patrepeval huggingface dataset:
Metal Oxide-Derived MOF-74 Polymer Composites through Pickering Emulsion-Templating: Interfacial Recrystallization, Hierarchical Architectures, and CO2 Capture Performances (2023)

Currently, metal-organic framework (MOF)-polymer composites are attracting great interest as a step forward in making MOFs a useful material for industrially relevant applications. However, most of the research is engaged with finding promising MOF/polymer pairs and less with the synthetic methods by which these materials are then combined, albeit hybridization has a significant impact on the properties of the new composite macrostructure. Thus, the focus of this work is on the innovative hybridization of MOFs and polymerized high internal phase emulsions (polyHIPEs), two classes of materials that exhibit porosity at different length scales. The main thrust is the in situ secondary recrystallization, i.e., growth of MOFs from metal oxides previously fixed in polyHIPEs by the Pickering HIPE-templating, and further structure-function study of composites through the CO<sub>2</sub> capture behavior. The combination of Pickering HIPE polymerization and secondary recrystallization at the metal oxide-polymer interface proved advantageous, as MOF-74 isostructures based on different metal cations (M<sup>2+</sup> = Mg, Co, or Zn) could be successfully shaped in the polyHIPEs' macropores without affecting the properties of the individual components. The successful hybridization resulted in highly porous, co-continuous MOF-74-polyHIPE composite monoliths forming an architectural hierarchy with pronounced macro-microporosity, in which the MOF microporosity is almost completely accessible for gases, i.e., about 87% of the micropores, and the monoliths exhibit excellent mechanical stability. The well-structured porous architecture of the composites showed superior CO<sub>2</sub> capture performance compared to the parent MOF-74 powders. Both adsorption and desorption kinetics are significantly faster for composites. Regeneration by temperature swing adsorption recovers about 88% of the total adsorption capacity of the composite, while it is lower for the parent MOF-74 powders (about 75%). Finally, the composites exhibit about 30% improvement in CO<sub>2</sub> uptake under working conditions compared to the parent MOF-74 powders, and some of the composites are able to retain 99% of the original adsorption capacity after five adsorption/desorption cycles.
High Rate-Reliability Beamformer Design for 2x2 MIMO-OFDM System Under Hostile Jamming (2020)

Multiple-input multiple-output (MIMO) systems find immense potential and applicability in the long term evolution (LTE), 5G, Internet of Things (IoT), vehicular ad hoc networks (VANETs), and tactical communication systems. Jamming poses significant communication hindrance as well as security risks to the wireless communication systems. The achievable rate and reliability are the two most compromised aspects of a wireless link under such severe jamming. Owing to the high capacity and reliability of MIMO systems, they are increasingly used in tactical and critical applications. Therefore, it becomes essential to assess and enhance their sustenance under hostile jamming scenarios. To this end, we address the rate and reliability requirements of a MIMO OFDM system and propose a novel rate-reliability beamformer transceiver design for highly reliable and spectrally efficient operation under the most detrimental jamming attacks. We consider the disguised all band and multiband jamming where the jammer continuously attempts to mimic the legit transmissions. Additionally, we evaluate the rate and reliability performance under barrage jamming. The significant contributions of the proposed rate-reliability beamformer scheme are: (i) achieves a minimum of 2 orders of magnitude better reliability in contrast to the state-of-the-art, (ii) outperforms the state-of-the-art scheme by 1.4x with regards to achievable spectral efficiency, (iii) a very low complexity (O(|Q|)) decoder is presented, and (iv) first work to evaluate the performance of state-of-the-art transmit diversity scheme under hostile jamming attacks.
Numerical simulations of radar surface air pressure measurements at O/sub 2/ bands (2005)

An active microwave method is investigated for measuring surface air pressure by using radar reflections at frequencies around 53-55 GHz O/sub 2/ bands. The numerical simulation results for homogeneous backgrounds show that with an airborne radar working at these O/sub 2/ absorption bands, the rms errors of the radar surface pressure estimations with 15-dB signal-to-noise ratio can be as low as 4-7 mb. A radar system that covers these wavelengths will have great potentials for weather observations and other meteorological applications.
Metastatic Breast Carcinoma Presenting As Acute Liver Failure and Portal Hypertension (2002)

Metastatic carcinoma is a rare but important cause of acutehepatic failure. We report the case of a relatively youngpatient who presented with the previously undescribed com-bination of acute hepatic failure and variceal bleeding due tointrasinusoidal hepatic inﬁltration from metastatic breastcarcinoma. As breast carcinoma is a common disease (1),this potential disease manifestation warrants note.
Large improvement in intersubband saturation intensityin InGaAs/AlAsSbquantum well (2001)

Wavelength dependence of the intersubband absorption saturation in InGaAs/AlAsSb quantum wells is presented. Large intersubband nonlinearity at 1.72 µm with the estimated saturation intensity as low as 4 MW/cm2 was observed.
nSwitching: Virtual Machine aware relay hardware switching to improve intra-NIC Virtual Machine traffic (2012)

Recent development on Ethernet switching to provide Single Root I/O Virtualization (SR-IOV) on network interface cards (NICs) improves Ethernet throughput for Virtual Machines (VMs) and lowers CPU loads. SR-IOV creates multiple receive queues on a NIC, directly accessible by VMs for frames coming from sources external to the Ethernet port. This virtualization of Ethernet ports and the presentation of frames directly to VMs eliminates a major cause for CPU loading by reducing the interrupts for receipt of inbound frames. However, SR-IOV cannot provide switching support for two VMs on the same computer; the only existing switching option is software-based switching in the hypervisor, which limits throughput and results in high CPU utilization. New industry standards 802.1Qbg and 802.1Qbh assist Ethernet traffic between VMs, but they require costly replacement of both Ethernet NICs and the data center external physical switch infrastructure. In this paper, we propose a new design by integrating a new Ethernet switching functionality into the NIC, which is called nSwitch, to enable hardware-based switching for inter-VM traffic on a single computer that has a single or multi-socket, multi-core CPU. Compared with software-based switching in the hypervisor, this enhancement greatly reduces CPU utilization and permits efficient traffic monitoring for on-board inter-VM I/O. Furthermore, it eliminates the back-and-forth usage of external port or channel bandwidth for internal VM communications.
Functional change in rat with bilateral common carotid occlusion is apparently visualized by connectivity analysis with 18F-FDG PET (2014)

1812 Objectives Permanent bilateral common carotid artery occlusion (BCCAO) is an established small animal model demonstrating temporal dementic change and gradual recovery due to chronic cerebral hypoperfusion and compensatory mechanism in the brain. Behavioral, immunohistochemical and anatomical changes have already reported in BCCAO model. We investigated functional change in the BCCAO rat model by using 18F-FDG PET. Methods Wistar rats (8 week old, male) were purchased and were divided into two groups, BCCAO and Sham groups. Sequential 18F-FDG PET imaging was performed in each rat before and 1, 2, 3 months after surgery. All rats completed 4 serial PET imaging were terminated. Inter- and intra-group, inter-temporal and inter-regional changes of brain metabolism were evaluated by voxel-based and connectivity analyses. Results Total 174 18F-FDG PET images in 81 wistar rats were obtained for about 15 months. Some animals (N=28, 32.1%) were missed before completion of study due to death of unknown cause during operation, PET imaging and management. Compared with baseline, there was decreased intra-group temporal FDG uptake in 2 or 3 months after surgery in both groups. However, there was no significant inter-group inter-regional change of FDG uptake. In connectivity analysis, inter-regional correlation of BCCAO group was broadly impaired and that of sham group was not. Conclusions Connectivity analysis with 18F-FDG PET clearly showed change of inter-regional connectivity in BCCAO model which had no significant regional impairment of brain metabolism. Therefore, connectivity analysis with 18F-FDG PET can be a useful approach for evaluation of brain functional change. Research Support This research was supported by a grant No. R31-2008-000-10103-0 from the WCU project of the MEST and the NRF and a grant (seed-10-4) from the Inter-Institutional Collaboration Research Program under the Korea Research Council of Fundamental Science & Technology (KRCF).
Automatic concolic test generation with virtual prototypes for post-silicon validation (2013)

Post-silicon validation is a crucial stage in the system development cycle. To accelerate post-silicon validation, high-quality tests should be ready before the first silicon prototype becomes available. In this paper, we present a concolic testing approach to generation of post-silicon tests with virtual prototypes. We identify device states under test from concrete executions of a virtual prototype based on the concept of device transaction, symbolically execute the virtual prototype from these device states to generate tests, and issue the generated tests concretely to the silicon device. We have applied this approach to virtual prototypes of three network adapters to generate their tests. The generated test cases have been issued to both virtual prototypes and silicon devices. We observed significant coverage improvement with generated test cases. Furthermore, we detected 20 inconsistencies between virtual prototypes and silicon devices, each of which reveals a virtual prototype or silicon device defect.
A 1.5 GHz highly linear CMOS downconversion mixer (1995)

A CMOS mixer topology for use in highly integrated downconversion receivers is presented. The mixing is based on the modulation of nMOS transistors in the triode region which renders an excellent linearity independent of mismatch. With two extra capacitors added to the classical cross-coupled MOSFET-C lowpass filter structure, GHz signals can be processed while only a low-frequency opamp is required as output amplifier. The downconversion mixer has an input bandwidth of 1.5 GHz. The measured third-order intercept point (IP3) of 45.2 dBm demonstrates the high linearity. The mixer has been implemented in a 1.2 /spl mu/m CMOS process. It takes up 1 mm/sup 2/ of total chip area and its power consumption is 1.3 mW from a single 5 V power supply.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Defect repair for soft x-ray projection lithography masks (1992)

The most promising option for masks intended for use in soft x-ray projection lithography (SXPL) at λ=13 nm is a reflective mask which uses a Mo/Si multilayer reflective coating. A variety of multilayer coated reflective mask technologies have been reported which can provide both high-resolution features and good reflectance contrast between the patterned and unpatterned regions. Repair of defects generated during patterning is a necessary feature of any practical mask technology. We have investigated the application of focused ion beam milling and deposition to programmed defects in the absorber layer of a SXPL Mo/Si multilayer reflection mask. Use of a sacrificial polymer barrier layer is described as well as milling and deposition conditions. The effect of ion implantation of the barrier layer on its removal after absorber repair is also reported. Both reflectivity measurements and resist images comparing repaired and unrepaired regions of masks are used to demonstrate the efficacy of the technique.
New design of CHP for hypermarket of higher energy efficiency, less-fugitive refrigerant emissions and a remarkable reduction in initial and operating cost (2013)

High initial cost of power plant, limited power capacity of the existing plant and the frequent black out of many districts due to the continuous increase in electrical demands, in addition to the adverse effect of the blackout on hypermarkets, especially on foodstuff such as meat, chicken, etc. strongly encourage the adoption of a regenerating process and the principle of combined heat and power. This work investigates the upgrading of the combined cooling heat and power system and improving the regenerating process adopted in the first design of an existing project. Linking between refrigeration and air-conditioning systems is proposed in scheme-II. A single-effect absorption chiller operating in the range of refrigeration scale (i.e. aqueous-ammonia refrigeration, not air-conditioning scale, LiBr–H2O employed in scheme-I) will be adopted using pressurised hot water recovered from the generators. The chilled water system will be serving three categories in the following order, namely, refrigeration stores, cold stores and air-conditioning units, respectively. The chilled water output of the first category will be the input of the second one. This will enhance the overall system efficiency, reduce the generator load and lessen the fugitive refrigerant emissions, which mainly participate in ozone-depleting potential and global-warming potential. This is in addition to the dramatic reduction in initial and operating cost, which can be estimated to be 50% and 79.6%, respectively.
2D CMOS integrated magnetometer based on the miniaturized circular vertical Hall device (2009)

We present a CMOS integrated two axes magnetometer. The sensor contains a miniaturized 8-contact circular vertical Hall device as a sensing device, as well as the necessary biasing and signal conditioning electronics. A novel biasing of the device, signal retrieval and phase sensitive detection that involve all contacts were applied. This approach strongly suppresses offset and low frequency noise of the sensor in a similar way as the conventional spinning current method does. The magnetometer has sensitivity of 0.22 V/T for 0.2 mA Hall biasing current, low residual offset in the range 80-300 muT, low nonlinearity and 15 nV/radicHz input referred voltage noise.
Diagnosis, Clinical Implications, and Complications of Onychomycosis (2013)

The diagnosis of onychomycosis is suggested by the clinical presentation as well as the family history and patient age. The definitive diagnosis of onychomycosis is based on (1) establishing the presence or absence of fungal elements using laboratory methods and/or (2) identifying the fungus using fungal culture or, in the future, by polymerase chain reaction as new developments emerge in this technology, making more widespread application of this technique possible.
Development of a Relevant Image Processing Method to Characterize the Distribution of Tissue within a Bone Structure (2015)

In this study one evaluate the efficiency of a new method to characterize the distribution of bone tissue within a human structure that could be wildly explored in research but especially in medical fields due to its simplicity and efficiency. Two different methods were used to characterize the distribution of tissue in the bone structure.
Supplementary Figure S1 from Phase I Clinical Study of Seneca Valley Virus (SVV-001),a Replication-Competent Picornavirus, in Advanced Solid Tumors with Neuroendocrine Features (2023)

&lt;p&gt;Supplementary Figure S1.&lt;/p&gt;
A Path Forward for Regenerative Medicine (2018)

Although clinical trials of cell-based approaches to cardiovascular disease have yielded some promising results, no cell-based therapy has achieved regulatory approval for a cardiovascular indication. To broadly assess the challenges to regulatory approval and identify strategies to facilitate this goal, the Cardiac Safety Research Consortium sponsored a session during the Texas Heart Institute International Symposium on Cardiovascular Regenerative Medicine in September 2017. This session convened leaders in cardiovascular regenerative medicine, including participants from academia, the pharmaceutical industry, the US Food and Drug Administration, and the Cardiac Safety Research Consortium, with particular focus on treatments closest to regulatory approval. A goal of the session was to identify barriers to regulatory approval and potential pathways to overcome them. Barriers identified include manufacturing and therapeutic complexity, difficulties identifying an optimal comparator group, limited industry capacity for funding pivotal clinical trials, and challenges to demonstrating efficacy on clinical end points required for regulatory decisions. Strategies to overcome these barriers include precompetitive development of a cell therapy registry network to enable dual-purposing of clinical data as part of pragmatic clinical trial design, development of standardized terminology for product activity and end points to facilitate this registry, use of innovative statistical methods and quality of life or functional end points to supplement outcomes such as death or heart failure hospitalization and reduce sample size, involvement of patients in determining the research agenda, and use of the Food and Drug Administration’s new Regenerative Medicine Advanced Therapy designation to facilitate early discussion with regulatory authorities when planning development pathways.
A Method of Trajectory Planning for Unmanned Aerial Vehicle Formation Based on Fluid Dynamic Model (2019)

This paper mainly studies the obstacle avoidance and rapid reconstruction of UAV formations. A hybrid trajectory planning algorithm based on potential field fluid dynamic model and bidirectional fast search random tree is proposed to improve the ability of UAV formation to adapt to complex dynamic environment. Firstly, a dynamic system mathematical model based on fluid potential energy field is proposed; and the obstacle potential energy function and potential energy function between the formations modify the disturbance flow field. Secondly, IBi-directional Rapidly Exploring Random Tree (IBi-RRT) algorithm with adaptive step size is scheduled to solve the dispersive and convergent streamlines of disturbed flow field and to plan the trajectory. This method can clarify the flow field streamlines by adaptive step size combined with rolling detection method, which greatly improves the formation's ability to avoid dynamic threats. The experimental results show that the proposed improved fluid potential energy field dynamic system and IBi-RRT hybrid trajectory planning algorithm with adaptive step size can effectively improve the adaptive ability of UAV formation to the dynamic environment, and can plan the ideal trajectory in response to unexpected situations.
Modified pull test for the testing of very adherent films. [Zr on Sapphire substrate] (1988)

The effectiveness of a thin film on a substrate depends largely on the degree of adhesion of the film to its substrate. Much effort has been put into developing reproducible, quantitative adhesion tests. The pull test is a direct measure of the tensile force required to remove the test film normal to the substrate surface. A technique was developed to introduce a reproducible flaw at the film/substrate interface in an attempt to lower the apparent adhesion of the film to within the range of the pull tester. This technique also promotes film failure at the artificial flaw and subsequent crack propagation along the film/substrates interface. Zirconium films approximately 500 nm were electron beam evaporated onto the basal plane of single crystal sapphire substrates. The pull test was performed using a Sebastian I adherence tester. The pins were 3 mm in diameter and coated with epoxy. The adhesion of these zirconium films to their sapphire substrates was greater than the strength of the epoxy used to bond the test pin to the specimen. A thin layer of gold was sputter deposited onto a small portion of the sapphire substrate after the substrate had been cleaned. The test film was then depositedmore » through a mask such that a portion of this new film overlapped the gold layer. Since the gold layer was non-adherent (experimentally) to the sapphire substrates used in this experiment, this served as a release layer for the test films. The mild shadowing effect of the mask used during gold deposition caused the edge of the gold layer under the test film to be tapered and thus this was treated as a reproducible crack and the analysis made using the concept of fracture toughness as indicated by the stress intensity factor, K. Results are discussed. 12 refs., 3 figs., 3 tabs.« less
Study of Routing Protocols in Wireless Sensor Networks (2009)

Recent advances in Wireless Sensor Networks (WSN) now witness the increased interest in the potential use in applications like disaster management, combat field reconnaissance, border protection and security surveillance. Sensors are expected to be remotely deployed in large numbers and operate autonomously in unattended environments. Many routing protocols have been specifically designed for WSNs where energy awareness is an essential design issue. This paper presents a survey of the state-of-the-art routing techniques in WSNs. We survey different routing algorithms for WSNs from the recent work; highlighting their objectives, features, complexity, etc. with a classification for the various approaches. Each routing protocol is described and discussed under the appropriate category.
Blood-feeding patterns of native mosquitoes and insights into their potential role as pathogen vectors in the Thames estuary region of the United Kingdom (2017)

This study expands the vertebrate host range of mosquitoes in the Thames estuary region of the UK. Feeding on both resident and migratory bird species by potential arbovirus vectors including Cx. pipiens f. pipiens and Cx. modestus indicates the potential for enzootic transmission of an introduced arbovirus between migratory and local bird species by native mosquito species.
Analytical Investigations of the Acceleration Sensitivity. (1997)

Abstract : A number of distinct treatments of transversely varying thickness modes in contoured quartz resonators with beveled edges have been performed. In the first two of these treatments the conditions at the free edge of the resonator were ignored. The first of the two employed rectangular coordinates while the second employed the more suitable cylindrical coordinates. In the third treatment the dominant condition at the free-edge of the cylindrical resonator was included. This latter treatment resulted in an analytical-computational procedure for the estimation of the diameter required for a good resonator. In other work the influence of an asymmetric air-gap on transversely varying thickness modes in quartz trapped energy resonators was determined and the equation for transversely varying thickness modes was modified to account for the gap. In different work the similarities and differences in the analytical-computational description of the acceleration sensitivities of acoustic bulk and surface wave resonators were noted and compared.