Miracle-dz/UniFAR-FTUs huggingface dataset:
A Modified Cartesian Factorized Backprojection Algorithm Integrating with Non-Start-Stop Model for High Resolution SAR Imaging

High resolution synthetic aperture radar (SAR) imaging has extensive application value especially in military reconnaissance and disaster monitoring. The motion of the satellite during the transmission and reception of the signal introduces notable errors in the high resolution SAR spotlight mode, which will lead to a defocused SAR image if not handled. To address this problem, an accurate correct echo model based on non-start-stop model is derived to describe the property of the SAR signal in the paper. Then, in the imaging processing, an azimuth-time-varying range frequency modulation rate is used for range compression. The range history and compensation phase are also derived based on the correct echo model. Then, combining the correct echo model and Cartesian factorized backprojection (CFBP) algorithm, a modified CFBP algorithm is proposed for SAR imaging to improve the accuracy and efficiency of processing. Besides, the influence of residual error due to mismatch is analyzed in detail. In the end, the simulation experiment and Gaofen-3 (GF-3) data experiment are carried out to demonstrate the feasibility of the proposed algorithm.
Analysis of black phosphorus double gate MOSFET using hybrid method for analogue/RF application

In this work, the authors study the performance of black phosphorus double gate MOSFET (BP-DGMOSFET) within the ballistic limit. A hybrid simulation technique involving both atomistic and technology computer-aided design (TCAD) tool has been used for the first time to simulate the device characteristics. First, the density functional theory has been used to simulate the electrical characteristics of single and fewlayer (five layers) phosphorene (including armchair and zigzag directions). The parameters such as bandgap and effective mass obtained using an atomistic simulator tool are exported into Sentaurus TCAD to simulate the BP-DGMOSFET characteristics. They have used the kinetic velocity model and quantum model to account for the ballistic mobility and quantum effects in the device. The current drain characteristics are calibrated with non-equilibrium Greens function (NEGF) simulation and radio frequency (RF) characteristics with compact model values and found that their results agree with them. Secondly, the other RF figure of merits, such as maximum frequency of oscillation, transconductance, output conductance and stability has also been simulated. It is found that their proposed method shows results comparable to NEGF with reduced computation time and complexity.
Temperature dependence of the refractive indices of liquids: Deviation from the Lorentz-Lorenz formula

The temperature dependence of the refractive index of liquids is an old problem which has received much attention because experimental results depart significantly from the values inferred from the usual Lorentz–Lorenz formula. Using a sensitive interferometric device, we have very accurately measured the values of (∂n/∂T)p for 15 different molecular liquids, and we give the corresponding deviations from the values predicted by the Lorentz–Lorenz formula. We review the main phenomena able to explain this deviation. Although the Yvon theory gives an expression which well describes our experimental data, it must be considered as an empirical result, since drastic approximations have been made. As both the density correlations and the polarizability anisotropy cannot explain the whole deviation, electronic overlaps and distortions of the molecular framework necessarily affect the refractive index derivatives.
Impact of Organizational Culture on Employee Performance and Organiza- tional Citizenship Behavior (OCB)

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WEAKLY-EINSTEIN HERMITIAN SURFACES by V. APOSTOLOV and O. MUS̆KAROV

A Hermitian surface (M,J, h) is a complex surface (M,J) endowed with a J-invariant Riemannian metric h. If the Kähler form F (., .) = h(J., .) of (M,J, h) is closed we obtain a Kähler surface. The Riemannian metric h is said to be Einstein if its Ricci tensor Ric is a constant multiple of the metric, i.e., if Ric = λh, where the constant 4λ is the scalar curvature of h. Many efforts have been done to study compact Einstein Hermitian surfaces (which, in general, give examples of non-homogeneous Einstein 4-spaces [10], [8]). The compact Kähler-Einstein surfaces have been described by completely resolving the corresponding complex Monge-Ampère equations, see [33], [3], [25], [28], [26], while the only known example of a compact, nonKähler, Einstein Hermitian surface is the Hirzebruch surface F1 ∼= CP]C̄P 2 with the Page metric [21]. Recently C. LeBrun [19] has proved that the only other compact complex surfaces that could admit non-Kähler Einstein Hermitian metrics are CP2]2C̄P and CP2]3C̄P. It is thus natural to consider some weaker conditions on the Ricci tensor than the Einstein one in order to provide more examples of (non-Kähler) Hermitian metrics still having interesting geometric properties. A possible way to do this is to consider the two irreducible components of the traceless part of the Ricci tensor under the action of the unitary group U(2) and to impose as a condition the vanishing of one of them.This leads to consider Hermitian surfaces with J-invariant Ricci tensor or with J-anti-invariant traceless
EFFECTS OF BULK DENSITY AND SOIL TYPE ON THE GAS DIFFUSION COEFFICIENT IN REPACKED AND UNDISTURBED SOILS

The gas diffusion coefficient in soil is affected by several soil physical parameters, including (1) air-filled porosity, (2) bulk density, (3) soil disturbance, (4) the kind of diffusion gases, and (5) soil texture. From the measurement of the relative gas diffusion coefficient (D/D0) of alluvial and volcanic soils, the effects of (2), (3), and (4) on D/D0 were evaluated. Gas diffusion coefficients of sieved, repacked and of undisturbed soil samples were measured in the laboratory. The gas diffusion coefficient of soil increased with bulk density at the same air-filled porosity in both soil types because the proportion of the effective pore space for gas diffusion relatively increased during the compaction procedure. In alluvial soil, the gas diffusion coefficients of undisturbed samples were higher than those of disturbed samples because of the presence of macropores and cracks in the undisturbed samples. The apparent D/D0 of CO2 gas was larger than for O2 and N2 because of differences in the solubilities of the gases.
Parameterized ROM using Artificial Neural Networks for Interaction between Incompressible Fluid and Moving Structure

This paper presents development of a reduced-order model (ROM) for fluid-structure interaction (FSI). Herein, the fluid analysis is coupled with a structure which undergoes rigidbody motion. In order for efficient computation of the FSI analysis, the ROM for fluid analysis is developed via proper orthogonal decomposition. Moreover, the parameterization of the present ROM is accomplished by employing the artificial neural network. Finally, the efficiency and accuracy of the present ROM is verified by comparing with the relevant fullorder computation.
Atomic charges of Cl− ions confined in a model Escherichia coli ClC−Cl−/H+ ion exchanger: a density functional theory study

We present extensive semi-empirical and pseudo-potential density functional theory calculations dedicated to analyse the stability, charge density distribution and migration behaviour of Cl− ions confined in model Escherichia coli (ec) ClC−Cl−/H+ ion-exchangers. Following recent high-resolution crystal structure determination in these kinds of systems, we use a finite-cluster model approach and construct various chemically simplified pore structures made of a glutamate residue −CH2−CH2−COO− (E148) and its closets 15, 19, 23 and 26 amino acids into which the Cl− ions will be confined. We reveal the sequence of molecular rearrangements induced on the E148 chain, which blocks the middle of the conduction pathway, leading to the pore opening. The −CH2−CH2−COO− fragment shows notable variations in its average charge density for small changes in the intra-cellular environment varying from −0.4e to −0.3e to −0.1e in the presence of zero, one and two confined Cl− ions, respectively, a result that reveals an interesting functionality of the E148 chain during Cl− conduction. We also obtain complex fluctuations in the ionic charge of the confined Cl− ions varying from ∼−0.7e to −0.2e, which deviate significantly from the value (−1e) usually used in classical simulations. By attaching a single H species to one of the oxygens of the glutamate group, we obtain that the −CH2−CH2−COOH fragment has now a small effective charge of ∼+0.25e. The energy barriers opposing the exit of the Cl− ions from our considered ion-exchangers vary from 0.65 eV to 4.7 eV, the smallest values being obtained for model structures exhibiting a high degree of flexibility and having protonated E148 fragments. Our results reinforce previous findings and provide additional physical insight, at the atomic level, on the gating process. Finally, we underline the importance of using electronically polarisable force fields to describe the transport of anionic species through this kind of molecular constrictions.
Relationship between amide proton chemical shifts and hydrogen bonding in amphipathic .alpha.-helical peptides

The relationship between amide proton chemical shift and hydrogen bond length has been investigated for a designed amphipathic α-helical peptide (Ac-Glu-Leu-Glu-Lys-Leu-Leu-Lys-Glu-Leu-Glu-Lys-Leu-Leu-Lys-Glu-Leu-Glu-Lys-NH 2 ). Four important results were obtained. (1) The secondary chemical shifts (Δδ HN ) changed periodically in a 3-4 repeat pattern along the peptide chain except for the first three residues at the N-terminal end of the peptide
INCREASING THE EFFICIENCY OF CLOSED LOOPS OF REUSABLE CONTAINERS IN PRODUCTION ENVIRONMENTS CONCERNING CONTAINER CLEANING

Today reusable containers, widely used in closed loops in production environments, are cleaned irrespective of their cleanliness-status and thus the actual necessity for being cleaned. This often leads to a considerable degree of technically superfluous container-cleaning, associated with high costs, transport efforts and resource utilization. This paper aims at investigating ways to harness the savings potential of a necessity based triggering of the cleaning process amid securing the quality of the container supply, controlling the uncertainty introduced into the container-loops through the status-dependent triggering of cleaning and establishing a process transparency enabling a reduction of the overall container inventory. A case study performed in an automotive supplier is included.
An Experimental Study For Identification items in Organizational Culture based on Customer-Centered in Iran`s Bank (Case Study: Maskan Bank in Semnan Province)

The aim of this study is, identification items in organizational culture based on Customer-Centered in largest services namely, maskan bank and largest province, namely, Semnan. Investigation was taken into applied target and gathering information about measurement. In analyzing main hypothesis from Factor Analysis and identification items in organizational culture based on customer-centered and Varimax Rotation, and for analysis second hypothesis, determining roll of items, we can use Multiple Regression whit step wise. For gathering information, use on questionnaire whit 42 items in 10 section and likert spectra. Statistical populations are: managers, assistance and personal in maskan bank and select 150 people for determining extent of sample, regard to sampling formula. This study was carried for first time and had innovative trend. The result show: in factor analysis and regression there were 42 items in 8 groups, named regard to investigations literature, and reward system had no effect on organizational culture based on customer-centered, therefore omitted. Also whit regard to standard value, highest share is related to integrate and least role in leadership.
Synthesis, Characterisation and Electrochemical Studies of Cu (II) Complex of (E)-4-(2-(4-Methoxyphenyl) Diazenyl) Benzene 1, 3 Diol Including DNA Binding and Antibacterial Activity

An innermetalic chelated azo-dye complex of second order having the stoichiometry (Cu (L1)2, 2H2O) with ligand L1,(E)-4-(2-(4-methoxyphenyl) diazenyl) benzene 1, 3 diol, has been sythesised at pH =7.48 and studied in both solid state and aqueous phase using different spectroscopic techniques. The structure of the complex has been carried out from elemental analysis, UV-Vis, IR, and mass spectrophotometry. Thermal decomposition has been studied from TGA-DSC analysis. Cyclic voltammetry of the complex has been carried out to ensure the presence of Cu (II) in the complex (Cu(L1)2,2H2O). Magnetic susceptibility determination of (Cu (L1)2, 2H2O) complex has been taken at a constant magnetic field of 5 KG with powder sample in the temperature range 20-35K. In addition special attention has been given to the studies of ct-DNA binding to the complex (Cu(L1)2, 2H2O) by absorption spectroscopy and cyclic voltammetry measurements under physiological condition (pH=7.4, 25°C) with intrinsic binding constant in the order of 10 4 M -1 . The complex also shows higher antibacterial activity than L1.
Subtalar Implant for Foot Deformity

*Please see amendment for Pennsylvania Medicaid at the end of this CPB. Aetna considers subtalar implants experimental and investigational for the treatment of subtalar instability, talipes equinovarus deformity (club foot), foot drop (dangle foot), and flatfoot deformity including congenital and adult-onset (acquired) flatfoot deformity (e.g., pes planus, pes planovalgus, pes valgus) and posterior tibial tendon dysfunction) or any other conditions because their clinical value has not been established.
The first study in Turkey about the chromosomes of tongue fish, Pegusa lascaris (Risso, 1810) (Soleidae, Pleuronectiformes), living in the Black Sea

In this study, It was examined the chromosome structures, numbers and other cytogenetic features of sole Pegusa lascaris (Risso, 1810) being one of the flatfish species live in the Black Sea, by conventional banding methods. The Sole specimens were obtained from fishermen along the coast of West and Central Black Sea (between Zonguldak and Ordu). Gill and fin epithelia tissues derived by dissecting fish samples which used colchicine (0.05%) treatment for six hours were incubated in hypotonic solution (0.4% KCl) and then treated with Carnoy’s fixative. As a result of karyological examination, it was determined that the chromosome number of P. lascaris showed 2n= 42 including 6 metacentric, 8 submetacentric, 12 subtelocentric and 16 acrocentric chromosomes (NF= 56).
Fecal Coliform Removal within a Marshland Upwelling System Consisting of Scatlake Soils

The marshland upwelling system (MUS) was installed on private camps in the Grand Bay National Estuarine Research Reserve, Moss Point, Mississippi. The system was evaluated for its effectiveness in removing fecal coliforms from settled, raw wastewater. A suite of studies was performed at flow rates of 1.9, 2.8, and 5.5 L/min and an injection frequency of 30 min every 3 h to investigate fecal coliform removal. An additional study was performed at a flow rate of 2.8 L/min and an injection frequency of 15 min every hour. Overall, the MUS consistently maintained fecal concentrations below effluent regulatory standards for shellfish harvesting waters (14 most probable number of colonies per 100 mL). Mean influent concentrations of 55,269±2,218,016 colony forming units (CFU)/100 mL were reduced to effluent counts of 2.7±14.07 CFU/100 mL (observed in the 1.5 m wells). Three- to four-log reductions in influent counts were observed over the initial 1.4 vector m from the injection well. The overall removal followed a first-order decay relationship with respect to vector distance, resulting in removal rate constants ranging from 5.6 to 6.6/m and predicted surface concentrations approaching 0 CFU/100 mL. The 2.8 L/min for 30 min every 3 h treatment provided the best effluent quality.
Fine-Grained Outsourced Data Deletion Scheme in Cloud Computing

With the rapid development of cloud computing, more and more data owners embrace cloud storage service, by which they can outsource their data to the cloud server to greatly reduce the local storage overhead. However, in cloud storage, the outsourced data deletion becomes a severe secure challenge, because the cloud server might not honestly perform the data deletion for ﬁnancial beneﬁts. To solve this problem, we put forward a ﬁne-grained data deletion scheme for cloud storage. In the proposed scheme, we introduce committed Rank-based Merkle hash tree chain, and adopt it to generate related evidences, which will be used to verify the storage and deletion results. Moreover, the proposal can achieve public veriﬁability without requiring any trusted third party, which exceeds plenty of previous solutions. Finally, the security analysis and simulation experiments demonstrate that the proposed scheme not only can satisfy the desired design goals, but also can achieve the eﬃciency and practicality.
An evaluation of the Ten15 persistent store

Persistent programming languages provide abstract mechanisms which completely describe the storage and retrieval of long term data. In this paper, the Ten15 persistent programming language is reviewed. Ten15 can be categorised as supporting a minimal persistence mechanism and an extremely powerful and expressive type system. Details of using Ten15 to build a general purpose filing system, based on dictionaries, are given. It is concluded that the ability to build a complex and flexible file system depends on two factors: the constructive power of the type system and the flexibility of the minimal persistent store. hhhhhhhhhhhhhhh * Research is sponsored by SERC/UK research grant number 89556293 and with the support of the Procurement Executive Ministry of Defence.
Immediate implant and provisionalisation of an upper lateral incisor with an autogenous bone graft associated with a laterally positioned flap and connective tissue graft

Implant placement, followed by the extraction of a single tooth, is a common practice in implantology. Nevertheless, with the increase in the use of implants, the demand for satisfactory aesthetic results also increased. This case report demonstrated the aesthetic and functional resolution of the immediate implant and provisionalisation of an upper lateral incisor with an autogenous bone graft associated with a laterally positioned flap and a connective tissue graft. The present procedure, which is in the aesthetic zone, is made a challenge because of the marginal mucosal recession of tooth 22 and the periodontal tissue biotype. Sixty days after the surgery and provisional crown, the patient reported aesthetic satisfaction and excellent soft tissue healing in the dental implant region. It can be concluded that the aesthetic and functional resolution of this clinical case that success in replacing a tooth for implantation in the aesthetic zone requires perio-implantology planning and professional skill in tissue
Superconducting Single Crystals of Tl2Ba2CaCu2O8 and YBa2Cu4O8: Crystal Structures in the Vicinity of Tc

The structures of superconducting Tl 2 Ba 2 CaCu 2 O 8 (T c ∼ 110 K) and YBa 2 Cu 4 O 8 (T c ∼70 K) were investigated by single-crystal X-ra y diffraction techniques in a wide temperature range. Some of the structure parameters show anomalous behaviour in the vicinity of the critical temperature. The most pronounced structural change is the shift of the apical O atoms in CuO 5 pyramids towards the CuO 2 planes, indicating charge redistribution near T c . This behaviour of the apical O atoms seems to be the common structural feature of hole-doped high-T c superconductors. Another effect of charge redistribution at T 1 concerns a very small decrease of in-plane Cu-O distances and/or O-O distances in CuO 5 pyramids. Both effects represent an averaged structure response to charge (hole) redistribution upon the phase transition to the superconducting state.
Kinetic model of the chemical recycling of waste polyethylene into fuels

Tertiary recycling methods offer potential possibilities for the utilization of waste plastics. Thermal and catalytic degradation of low-density polyethylene wastes were studied in a batch reactor under mild cracking conditions to derive liquid cracking products of olefins and paraffins. Zeolite catalysts with different activities were studied: a commercial equilibrium FCC catalyst, an H form ZSM-5 catalyst, and a natural clinoptilolite containing rhyolite tuff. The catalytic processes could convert waste polymers into valuable hydrocarbons. The properties of products could be modified by the use of catalysts. The olefin content and the position of the olefinic double bonds were investigated with IR spectrometry. In the presence of catalysts the olefin content increased, and the terminal bonds migrated into internal positions. Furthermore the liquid products had lower average molecular weights than those obtained without catalysts. The activation energies of the cracking reactions with or without catalysts were determined. The apparent activation energy was lower in catalytic than that in thermal degradation. The cracking reaction rates were modelled and the reaction rate constant of each hydrocarbon type was calculated. The model gives a good approximation of the experimental results obtained from the degradation of LDPE waste in the presence and absence of catalysts. Under the studied parameters, liquids were formed with suitable properties for further uses (e.g. low sulphur content, low pour point).
Formation of a xerogel in reduced gravity using the acid catalysed silica sol-gel reaction

An acid catalysed silica sol-gel reaction was used to create a xerogel in reduced gravity. Samples were formed in a special apparatus which utilised vacuum and heating to speed up the gelation process. Testing was conducted aboard NASA's KC-135 aircraft which flies a parabolic trajectory, producing a series of 25 second reduced gravity periods. The samples formed in reduced gravity were compared against a control sample formed in normal gravity. 29Si NMR and nitrogen adsorption/desorption techniques yielded information on the molecular and physical structure of the xerogels. The microstructure of the reduced gravity samples contained more Q4 groups and less Q3 and Q2 groups than the control sample. The pore size of the reduced gravity samples was also larger than the control sample. This indicated that in a reduced gravity environment, where convection is lessened due to the removal of buoyancy forces, the microstructure formed through cyclisation reactions rather than bimolecularisation reactions. The latter requires the movement of molecules for reactions to occur whereas cyclisation only requires a favourable configuration. Q4 groups are stabilised when contained in a ring structure and are unlikely to undergo repolymerisation. Thus reduced gravity favoured the formation of a xerogel through cyclisation, producing a structure with more highly coordinated Q groups. The xerogel formed in normal gravity contained both chain and ring structures as bimolecularisation reactions were able to effectively compete with cyclisation.