Journal articles: 'Partial termination'

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Uydur, Cihat Cagdas, and Oktay Arikan. "Use of Tanδ and Partial Discharge for Evaluating the Cable Termination Assembly." Energies 13, no. 20 (October 12, 2020): 5299. http://dx.doi.org/10.3390/en13205299.

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It is known that the failure of cable terminations causes power outages and impairs system quality and continuity. Besides, serious economic losses on both the distribution and consumer sides occur. In this study, the dielectric behavior of the cable and the faults caused by the defects in the cable termination under overvoltage has been examined. As test samples, 12 kV XLPE insulated cable is used and they were aged at three (3*U0) and five (5*U0) times the rated voltage. After each aging cycle, dielectric parameters of the cable were measured by an OMIRCRON CPC100/CPTD1 device, and the partial discharge (PD) was measured by an OMICRON MPD600 device. In the measurements, it was observed that the cable was broken down at different aging cycle numbers as a result of defects in the cable termination due to weak workmanship. As a result of the measurements, it is concluded that defects in the cable termination give information about the increase in the probability of failure and the decrease of the cable lifetime. Consequently, it is concluded that fine workmanship and timely maintenance of cable terminations prevent the system from unwanted power outages and economic losses.

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Blass, Andreas, and Yuri Gurevich. "Program termination and well partial orderings." ACM Transactions on Computational Logic 9, no. 3 (June 2008): 1–26. http://dx.doi.org/10.1145/1352582.1352586.

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Suwanasri, Cattareeya, Thanapong Suwanasri, and Phanupong Fuangpian. "Investigation on Partial Discharge of Power Cable Termination Defects using High Frequency Current Transformer." ECTI Transactions on Electrical Engineering, Electronics, and Communications 12, no. 1 (November 19, 2013): 16–23. http://dx.doi.org/10.37936/ecti-eec.2014121.170810.

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This paper presents partial discharge (PD) investigation of different cable termination defects. The medium voltage power cables as rated of 3.6/6(7.2) kV are applied. Finite Element Method Magnetic (FEMM) program is used as a simulation tool for electric field stress investigation. The partial discharges patterns are detected by using a commercial High Frequency Current Transformer (HFCT). The simple cases for internal, surface and corona discharge are firstly observed in order to investigate the performance of the HFCT. Then eight different case studies of cable termination defects are further investigated, which includes non-terminator, voids between XLPE and stress control, 20 mm. overlaps between semiconductor and stress control, particles on XLPE, non-smooth XLPE, needle tip on insulation screen, impropriate cable bending, and proper termination. The results are then compared with the results from a conventional PD diagnosis tool according to IEC 60270 standard. The results of PD detection show that the commercial product can detect the PD waveform and measure the electric charge when it is highly enough. The test can also identify trends toward breakdown and there severity due to improper cable termination defects.

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Codish, Michael, Vitaly Lagoon, and Peter J. Stuckey. "Solving Partial Order Constraints for LPO Termination." Journal on Satisfiability, Boolean Modeling and Computation 5, no. 1-4 (June 1, 2008): 193–215. http://dx.doi.org/10.3233/sat190056.

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de Curtis, Marco, and Massimo Avoli. "Initiation, Propagation, and Termination of Partial (Focal) Seizures." Cold Spring Harbor Perspectives in Medicine 5, no. 7 (July 2015): a022368. http://dx.doi.org/10.1101/cshperspect.a022368.

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Dionisio, Jenna, and William O. Tatum. "Triggers and techniques in termination of partial seizures." Epilepsy & Behavior 17, no. 2 (February 2010): 210–14. http://dx.doi.org/10.1016/j.yebeh.2009.11.027.

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Mints, G. "A termination proof for epsilon substitution using partial derivations." Theoretical Computer Science 303, no. 1 (June 2003): 187–213. http://dx.doi.org/10.1016/s0304-3975(02)00451-6.

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Schulze-Bonhage, A., S. Hefft, and B. Oehl. "Termination of complex partial status epilepticus by intravenous levetiracetam." Journal of Neurology, Neurosurgery & Psychiatry 80, no. 8 (March 12, 2007): 931–33. http://dx.doi.org/10.1136/jnnp.2006.113951.

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9

DOMÉNECH, JESÚS J., JOHN P. GALLAGHER, and SAMIR GENAIM. "Control-Flow Refinement by Partial Evaluation, and its Application to Termination and Cost Analysis." Theory and Practice of Logic Programming 19, no. 5-6 (September 2019): 990–1005. http://dx.doi.org/10.1017/s1471068419000310.

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AbstractControl-flow refinement refers to program transformations whose purpose is to make implicit control-flow explicit, and is used in the context of program analysis to increase precision. Several techniques have been suggested for different programming models, typically tailored to improving precision for a particular analysis. In this paper we explore the use of partial evaluation of Horn clauses as a general-purpose technique for control-flow refinement for integer transitions systems. These are control-flow graphs where edges are annotated with linear constraints describing transitions between corresponding nodes, and they are used in many program analysis tools. Using partial evaluation for control-flow refinement has the clear advantage over other approaches in that soundness follows from the general properties of partial evaluation; in particular, properties such as termination and complexity are preserved. We use a partial evaluation algorithm incorporating property-based abstraction, and show how the right choice of properties allows us to prove termination and to infer complexity of challenging programs that cannot be handled by state-of-the-art tools. We report on the integration of the technique in a termination analyzer, and its use as a preprocessing step for several cost analyzers.

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Cai, Zi-Jian. "The Spatial Constraint Requiring Organogenetic Termination: Supplemental to Haeckel and von Baer for Development and Evolution." European Journal of Theoretical and Applied Sciences 2, no. 3 (May 1, 2024): 504–16. http://dx.doi.org/10.59324/ejtas.2024.2(3).39.

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In this article, it is pointed out that the requirement for organogenetic termination is the new spatial constraint for animal development and heredity, based on that: (a) organogenesis manifests limitation in time and possession of termination, while infinite cell proliferation known as cancer is lethal; (b) the notable indeterminate growth in some fishes and a few outgrowing skin derivatives reversely demonstrates that termination is required for organogenesis inside the animal. In further, it is supplemented this new spatial constraint to Haeckel and von Baer for development and evolution. While not influencing the temporal and spatial reorganization of morphogenesis during evolution, it places restrictions on alteration of organogenetic mechanisms themselves, as that: (a) addition of new induction mechanism or elimination of termination mechanism would usually cause endless organogenesis, liable to become lethal; (b) addition of new termination mechanism or elimination of induction mechanism in evolution not be affected by this spatial constraint. Finally, it is identified this spatial constraint as partial convergence and partial difference with Haeckel’s recapitulation, and as restriction onto Baer’s tree. It is perspectives to use the method of mathematical probability and statistics to study the spatial constraint of development onto evolution in future.

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Ellwood, David. "Late terminations of pregnancy – an obstetrician's perspective." Australian Health Review 29, no. 2 (2005): 139. http://dx.doi.org/10.1071/ah050139.

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THE RECENTLY REIGNITED DEBATE on abortion has raised many questions, including the number performed, the age of the women and indications for the procedure. Those on the ?pro-life? side of the highly polarised participants have also focused attention on ?late abortions?. There have been suggestions that there may be large numbers of late terminations of pregnancy being performed, in some cases close to full term, with no medical indication other than a woman?s choice not to continue the pregnancy. Indeed, the phrase ?partial-birth abortion? which is sometimes used by political activists on the pro-life side may lead the uninformed listener to conclude that this is something close to infanticide, being performed at a time when survival for the infant is a realistic possibility. What then is the real situation with late terminations in Australia? The term ?late termination? is understood by most obstetricians to mean one that is carried out at or above 20 weeks? gestation. This legal watershed, beyond which the fetus attains a legal identity, often triggers a change in the decisionmaking process when a request for termination is made. This depends on the practice and laws that apply in various jurisdictions.

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Zhao, Mingshu, Xiaoyan Cao, Kai Zhou, Yao Fu, Xutao Li, and Li Wan. "Flexible Sensor Array Based on Transient Earth Voltage for Online Partial Discharge Monitoring of Cable Termination." Sensors 20, no. 22 (November 20, 2020): 6646. http://dx.doi.org/10.3390/s20226646.

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Cable termination is a weak point in an underground cable system. The transient earth voltage (TEV) method is an effective and nonintrusive method for estimating the insulation condition of cable termination. However, the practical application of TEV detection is mainly focused on switchgears, generators, and transformers with a flat and conductive shell. A flexible sensor array based on the TEV method is presented for online partial discharge (OLPD) monitoring of the cable termination. Each sensing element is designed with a dual-capacitor structure made of flexible polymer material to obtain better and more stable sensitivity. Based on the electromagnetic (EM) wave propagation theory, the partial discharge (PD) propagation model in the cable termination is built to analyze and verify the rationality and validity of the sensor unit. Some influencing factors are discussed regarding the response characteristics of sensors. Finally, the performance of the sensor array is verified by simulations and experiments. Besides, an OLPD monitoring system is introduced. The monitoring system is composed of the on-site monitoring device and the remote monitoring host. The two parts of the system exchange the data through wireless networks using a wireless communication module. The experiment results show that the monitoring device could supply the PD condition monitoring demand for cable termination.

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Glenstrup, Arne John, and Neil D. Jones. "Termination analysis and specialization-point insertion in offline partial evaluation." ACM Transactions on Programming Languages and Systems 27, no. 6 (November 1, 2005): 1147–215. http://dx.doi.org/10.1145/1108970.1108973.

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14

Afra, Pegah, Christopher C. Jouny, and Gregory K. Bergey. "Termination patterns of complex partial seizures: An intracranial EEG study." Seizure 32 (November 2015): 9–15. http://dx.doi.org/10.1016/j.seizure.2015.08.004.

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15

Gergely, Lajos, Miroslav Korbeľ, Vanda Repiská, Ľudovít Danihel, Juraj Hutník, Liam McCullough, and Petra Priščáková. "DNA analysis of partial hydatidiform mole revealing triandric monogynic tetraploidy." Česká gynekologie 88, no. 6 (December 20, 2023): 446–49. http://dx.doi.org/10.48095/cccg2023446.

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The authors present a case of a partial hydatidiform mole where DNA analysis (STR – short tandem repeat genotyping) showed a triandric monogynic tetraploid genome composition with a XXXY gonosomal complement. This genetic finding clinicopathologically correlates with a partial hydatidiform mole, although it is rare in comparison with the typical, diandric monogynic triploid partial moles. The genetic analysis definitively confirmed the suspected diagnosis of a partial mole. To exclude the possibility that molar pregnancy represented retained products of conception after elective pregnancy termination, STR profiles from molar pregnancy and previous products of conception were compared. Short tandem repeats genotyping is a useful molecular genetic method in the differential diagnosis of partial hydatidiform moles, where clinical-pathological findings are frequently ambiguous. Key words: DNA analysis – short tandem repeat genotyping – tetraploidy – partial hydatidiform mole – retained product of conception

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Olbrich, M. O., and E. M. Biebl. "A Low-Cost Versatile Broadband (DC to K-Band) Planar 50Ω Termination." Advances in Radio Science 3 (May 12, 2005): 147–50. http://dx.doi.org/10.5194/ars-3-147-2005.

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Abstract. Numerous standard RF circuits like directional couplers, hybrids, amplitude modulators, oscillators, etc. require a 50Ω termination. Additionally, in several measurement scenarios, ports have to be terminated. Such terminations are preferable of the same waveguide type as the circuits to avoid degradation of their performance. In general, standard fabrication steps are desired as they are cost-effective. The straightforward solution is a 50Ω resistor shunted to ground by means of a via. Partial wraparound SMD resistors in a 0402 size have low parasitics making them applicable up to K-band. However, for RF, this combination suffers from the considerable inductive parasitics of the via. Different approaches to avoid the vias, with varying disadvantages exist. We analyzed the approach of broadband matching the non ideal viaresistor combination to 50Ω by means of a filter structure. The realization uses only standard design and fabrication methods. The design procedure can easily be adapted to arbitrary substrates and fabrication technologies. The assembled 50Ω termination was measured using TRL calibration with a VNA. Therefore its characteristics are determined in the intended plane and it can be directly included into a planar 50Ω circuit. The measured terminations showed a VSWR better than 1.34 within the whole band from DC to K-band, and within 57% of the band (including the 24GHz ISM band) the VSWR is better than 1.22.

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17

Daszczuk, Wiktor. "Specification and Verification in Integrated Model of Distributed Systems (IMDS)." Computers 7, no. 4 (December 2, 2018): 65. http://dx.doi.org/10.3390/computers7040065.

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Distributed systems, such as the Internet of Things (IoT) and cloud computing, are becoming popular. This requires modeling that reflects the natural characteristics of such systems: the locality of independent components, the autonomy of their decisions, and asynchronous communication. Automated verification of deadlocks and distributed termination supports rapid development. Existing techniques do not reflect some features of distribution. Most formalisms are synchronous and/or use some kind of global state, both of which are unrealistic. No model supports the communication duality that allows the integration of a remote procedure call and client-server paradigm into a single, uniform model. The majority of model checkers refer to total deadlocks. Usually, they do not distinguish between communication deadlocks from resource deadlocks and deadlocks from distributed termination. Some verification mechanisms check partial deadlocks at the expense of restricting the structure of the system being verified. The paper presents an original formalism for the modeling and verification of distributed systems. The Integrated Model of Distributed Systems (IMDS) defines a distributed system as two sets: states and messages, and the relationship of the “actions” between these sets. Communication duality provides projections on servers and on traveling agents, but the uniform specification of the verified system is preserved. General temporal formulas over IMDS, independent of the structure of the verified system, allow automated verification. These formulas distinguish between deadlocks and distributed termination, and between communication deadlocks and resource deadlocks. Partial deadlocks and partial termination can be checked. The Dedan tool was developed using IMDS formalism.

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18

Snarr, Brian B. "Halliburton—Tax Court Provides Guidance on Partial Termination of Retirement Plans." Compensation & Benefits Review 25, no. 5 (October 1993): 4–6. http://dx.doi.org/10.1177/088636879302500502.

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19

Cao, Qidong, and Mark A. McKnew. "Partial termination rule of Lagrangian relaxation for manufacturing cell formation problems." Computers & Operations Research 25, no. 2 (February 1998): 159–68. http://dx.doi.org/10.1016/s0305-0548(97)00004-x.

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20

Rybarz, Jacek, Sebastian Borucki, Michał Kunicki, Aneta Kucińska-Landwójtowicz, and Dawid Wajnert. "Influence of the Cable Accessories Installing Method on the Partial Discharge Activity in Medium Voltage Cables." Energies 15, no. 12 (June 8, 2022): 4216. http://dx.doi.org/10.3390/en15124216.

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This article proposes a method to modify the construction of a medium voltage (MV) heat shrinkable cable termination in cases of atypical damage to the shields of cross-linked polyethylene (XLPE) insulated cables. The proposed solutions include a modified method of assembling electric field control coating. An attempt was made to check the effect of such damage to the shields of MV cables with XLPE insulation on the level of occurrence of partial discharges within the cable termination. The investigations included testing the XRUHAKXS 1 × 240/25 cable type using the electric method (ME) and high frequency (HF) method with sinusoidal AC test voltage. As a result of the measurements, the values of total charges in the period and phase-resolved partial discharge (PRPD) patterns were obtained. The presented experimental results show the influence of the damage of the semiconducting coating surface on the occurrence of a defect in the cable termination without a modified method of control mantissa pinning. We suggest new methods of assembling MV cable accessories in the case of the presented coating damage in MV cable insulation.

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Kuribayashi, Shiko, Benson T. Massey, Muhammad Hafeezullah, Lilani Perera, Syed Q. Hussaini, Linda Tatro, Ronald J. Darling, Rose Franco, and Reza Shaker. "Terminating motor events for TLESR are influenced by the presence and distribution of refluxate." American Journal of Physiology-Gastrointestinal and Liver Physiology 297, no. 1 (July 2009): G71—G75. http://dx.doi.org/10.1152/ajpgi.00017.2009.

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Transient lower esophageal sphincter relaxation (TLESR) is frequently associated with reflux events and terminates with a primary or secondary peristaltic wave. However, it is unclear whether the presence and properties of the refluxate affect TLESR-termination events. The aims of this study were to determine the pattern of terminating esophageal motor activity after TLESR in healthy subjects and factors affecting the type of terminating motor event. Fifteen healthy subjects (7 men, age 18–56) were studied. High-resolution manometry and impedance/pH monitoring were performed simultaneously in supine position for 2 h after subjects took a 1,000-kcal meal (Awake Study). This procedure was repeated during the night under polysomnographic recording for 6–8 h after consuming a 1,000-kcal meal (Sleep Study). We categorized three types of TLESR-terminating motor events, primary peristalsis (PP), full secondary contraction (FSC), which propagated the entire esophagus, and partial secondary contractions (PSC), which started distal to the upper esophageal sphincter. Overall, 289 TLESR events were found. The percentages of TLESR events terminated by PP, FSC, and PSC were 22%, 14%, and 64%, respectively. TLESR events terminated by PP were less likely to be accompanied by reflux events. TLESR events terminated by FSC were significantly more likely to have evidence for proximal esophageal reflux and esophago-pharyngeal reflux. Findings were similar in awake and sleep states. We concluded that, in healthy recumbent subjects, the most common TLESR-termination event is a secondary contraction, rather than PP. Presence and distribution of the refluxate is a major influence on the type of terminating contraction.

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Fiore, Marcelo P. "Order-enrichment for categories of partial maps." Mathematical Structures in Computer Science 5, no. 4 (December 1995): 533–62. http://dx.doi.org/10.1017/s0960129500001225.

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Motivated by a desire to treat non-termination directly in the semantics of computation, the notion of approximation between programs is studied in the context of categories of partial maps. In particular, contextual approximation and specialisation are considered and shown to coincide. Moreover, after exhibiting the approximation between total maps as a primitive notion, from an arbitrary (or axiomatic) approximation order on total maps a computationally natural approximation order on partial maps is derived. The main technical contribution is a characterisation of when this approximation order between partial maps is domain-theoretic (in the sense that the category of partial maps Cpo-enriches) provided that the approximation order between total maps is also.

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Zhang, Rui-Qing, Jia-Rong Zhang, and Shuang-Di Li. "Termination of a partial hydatidiform mole and coexisting fetus: A case report." World Journal of Clinical Cases 7, no. 20 (October 6, 2019): 3289–95. http://dx.doi.org/10.12998/wjcc.v7.i20.3289.

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Kushiyama, Yasunori, Haruo Honjo, Ryoko Niwa, Hiroki Takanari, Masatoshi Yamazaki, Yoshio Takemoto, Ichiro Sakuma, Itsuo Kodama, and Kaichiro Kamiya. "Partial IK1 blockade destabilizes spiral wave rotation center without inducing wave breakup and facilitates termination of reentrant arrhythmias in ventricles." American Journal of Physiology-Heart and Circulatory Physiology 311, no. 3 (September 1, 2016): H750—H758. http://dx.doi.org/10.1152/ajpheart.00228.2016.

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It has been reported that blockade of the inward rectifier K+ current ( IK1) facilitates termination of ventricular fibrillation. We hypothesized that partial IK1 blockade destabilizes spiral wave (SW) re-entry, leading to its termination. Optical action potential (AP) signals were recorded from left ventricles of Langendorff-perfused rabbit hearts with endocardial cryoablation. The dynamics of SW re-entry were analyzed during ventricular tachycardia (VT), induced by cross-field stimulation. Intercellular electrical coupling in the myocardial tissue was evaluated by the space constant. In separate experiments, AP recordings were made using the microelectrode technique from right ventricular papillary muscles of rabbit hearts. Ba2+ (10–50 μM) caused a dose-dependent prolongation of VT cycle length and facilitated termination of VT in perfused hearts. Baseline VT was maintained by a stable rotor, where an SW rotated around an I-shaped functional block line (FBL). Ba2+ at 10 μM prolonged I-shaped FBL and phase-singularity trajectory, whereas Ba2+ at 50 μM transformed the SW rotation dynamics from a stable linear pattern to unstable circular/cycloidal meandering. The SW destabilization was not accompanied by SW breakup. Under constant pacing, Ba2+ caused a dose-dependent prolongation of APs, and Ba2+ at 50 μM decreased conduction velocity. In papillary muscles, Ba2+ at 50 μM depolarized the resting membrane potential. The space constant was increased by 50 μM Ba2+. Partial IK1 blockade destabilizes SW rotation dynamics through a combination of prolongation of the wave length, reduction of excitability, and enhancement of electrotonic interactions, which facilitates termination of ventricular tachyarrhythmias.

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Wouters, P. A. A. F., F. Barakou, and E. F. Steennis. "Application of Open-air Capacitive Sensors for Voltage Monitoring near Terminations in HV and EHV Insulated Connections." Proceedings of the Nordic Insulation Symposium, no. 26 (August 8, 2019): 70–75. http://dx.doi.org/10.5324/nordis.v0i26.3281.

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Contactless capacitive sensors are applied to monitor(over)voltages near the overhead line terminations of asubstation or at cable to line transitions. The sensor response isthe signal time derivative when loaded with a resistiveimpedance and the waveform is restored by integration. As partof this differentiating/integrating (D/I) measuring concept, theuse of open-air sensors results in excellent EMC characteristicsbut the inherent cross-coupling to other phases has to be dealtwith. Three applications are presented: 1) For a 150 kV cabletermination the partial discharge activity needs to be related tomomentary phase voltages; 2) Measured slow front overvoltageat a 380 kV cable termination from line energizationare compared with predictions from numerical simulation; 3)The perspectives of employing the D/I method for (very) fastfront overvoltages near a 380 kV circuit breaker are examined.

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LEUSCHEL, MICHAEL, and MAURICE BRUYNOOGHE. "Logic program specialisation through partial deduction: Control issues." Theory and Practice of Logic Programming 2, no. 4-5 (July 2002): 461–515. http://dx.doi.org/10.1017/s147106840200145x.

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Program specialisation aims at improving the overall performance of programs by performing source to source transformations. A common approach within functional and logic programming, known respectively as partial evaluation and partial deduction, is to exploit partial knowledge about the input. It is achieved through a well-automated application of parts of the Burstall-Darlington unfold/fold transformation framework. The main challenge in developing systems is to design automatic control that ensures correctness, efficiency, and termination. This survey and tutorial presents the main developments in controlling partial deduction over the past 10 years and analyses their respective merits and shortcomings. It ends with an assessment of current achievements and sketches some remaining research challenges.

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Apt, Krzysztof R., and Dominik Wojtczak. "Verification of Distributed Epistemic Gossip Protocols." Journal of Artificial Intelligence Research 62 (May 28, 2018): 101–32. http://dx.doi.org/10.1613/jair.1.11204.

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Gossip protocols aim at arriving, by means of point-to-point or group communications, at a situation in which all the agents know each other secrets. Distributed epistemic gossip protocols use as guards formulas from a simple epistemic logic and as statements calls between the agents. They are natural examples of knowledge based programs.We prove here that these protocols are implementable, that their partial correctness is decidable and that termination and two forms of fair termination of these protocols are decidable, as well. To establish these results we show that the definition of semantics and of truth of the underlying logic are decidable.

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Zacharis, Konstantinos, Stavros Kravvaritis, Anastasia Papakonstantinou, Theodoros Charitos, Eleni Chrysafopoulou, and Anastasia Fouka. "Dandy-Walker Malformation: Prenatal sonographic diagnosis." Hellenic Journal of Obstetrics and Gynecology 19, no. 2 (April 3, 2020): 101–4. http://dx.doi.org/10.33574/hjog.1992.

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The Dandy-Walker malformation is a rare congenital intracranial malformation that comprises of complete or partial agenesis of the cerebellar vermis, cystic dilatation of the 4th ventricle and an enlarged posterior fossa. Here we report a case of Dandy-Walker malformation detected incidentally during a routine fetal sonographic examination at 18 weeks of gestation. The couple decided termination of pregnancy, after adequate genetic counseling. Detailed postmortem examination revealed correlation between prenatal sonographic imaging and histopathological findings. This case report indicates the fact that fetal magnetic resonance imaging may not be necessary in diagnosis, especially when pregnancy termination is preferred.

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Woolway, Matthew, Byron A. Jacobs, Ebrahim Momoniat, Charis Harley, and Dieter Britz. "Numerical Convergence Analysis of the Frank–Kamenetskii Equation." Entropy 22, no. 1 (January 9, 2020): 84. http://dx.doi.org/10.3390/e22010084.

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This work investigates the convergence dynamics of a numerical scheme employed for the approximation and solution of the Frank–Kamenetskii partial differential equation. A framework for computing the critical Frank–Kamenetskii parameter to arbitrary accuracy is presented and used in the subsequent numerical simulations. The numerical method employed is a Crank–Nicolson type implicit scheme coupled with a fourth order spatial discretisation as well as a Newton–Raphson update step which allows for the nonlinear source term to be treated implicitly. This numerical implementation allows for the analysis of the convergence of the transient solution toward the steady-state solution. The choice of termination criteria, numerically dictating this convergence, is interrogated and it is found that the traditional choice for termination is insufficient in the case of the Frank–Kamenetskii partial differential equation which exhibits slow transience as the solution approaches the steady-state. Four measures of convergence are proposed, compared and discussed herein.

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Hedlund, Jeffrey D. "An Economic Case for Mandatory Bargaining over Partial Termination and Plant Relocation Decisions." Yale Law Journal 95, no. 5 (April 1986): 949. http://dx.doi.org/10.2307/796378.

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Bondorf, Anders, and Jesper Jørgensen. "Efficient analyses for realistic off-line partial evaluation." Journal of Functional Programming 3, no. 3 (July 1993): 315–46. http://dx.doi.org/10.1017/s0956796800000769.

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AbstractBased on Henglein's efficient binding-time analysis for the lambda calculus (with constants and ‘fix’) (Henglein, 1991), we develop three efficient analyses for use in the preprocessing phase of Similix, a self-applicable partial evaluator for a higher-order subset of Scheme. The analyses developed in this paper are almost-linear in the size of the analysed program. (1) A flow analysis determines possible value flow between lambda-abstractions and function applications and between constructor applications and selector/predicate applications. The flow analysis is not particularly biased towards partial evaluation; the analysis corresponds to the closure analysis of Bondorf (1991b). (2) A (monovariant) binding-time analysis distinguishes static from dynamic values; the analysis treats both higher-order functions and partially static data structures. (3) A new is-used analysis, not present in Bondorf (1991b), finds a non-minimal binding-time annotation which is ‘safe’ in a certain way: a first-order value may only become static if its result is ‘needed’ during specialization; this ‘poor man's generalization’ (Holst, 1988) increases termination of specialization. The three analyses are performed sequentially in the above mentioned order since each depends on results from the previous analyses. The input to all three analyses are constraint sets generated from the program being analysed. The constraints are solved efficiently by a normalizing union/find-based algorithm in almost-linear time. Whenever possible, the constraint sets are partitioned into subsets which are solved in a specific order; this simplifies constraint normalization. The framework elegantly allows expressing both forwards and backwards components of analyses. In particular, the new is-used analysis is of backwards nature. The three constraint normalization algorithms are proved correct (soundness, completeness, termination, existence of a best solution). The analyses have been implemented and integrated in the Similix system. The new analyses are indeed much more efficient than those of Bondorf (1991b); the almost-linear complexity of the new analyses is confirmed by the implementation.

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Dang, J., and G. Kuiper. "Re-Entrant Jet Modeling of Partial Cavity Flow on Two-Dimensional Hydrofoils." Journal of Fluids Engineering 121, no. 4 (December 1, 1999): 773–80. http://dx.doi.org/10.1115/1.2823536.

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A potential based panel method is developed to predict the partial cavity flow on two-dimensional hydrofoil sections. The Dirichlet type dynamic boundary condition on the cavity surface and the Neumann type kinematic boundary condition on the wetted section surface are enforced. A re-entrant jet cavity termination model is introduced. A validation is accomplished by comparing the present calculations with cavitation experiments of a modified Joukowsky foil and a NACA 66(MOD) a = 0.8 section.

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Pour, Ali Nakhaei, and Fatemeh Dolati. "Activation Energies for Chain Growth Propagation and Termination in Fischer–Tropsch Synthesis on Iron Catalyst as a Function of Catalyst Particle Size." Progress in Reaction Kinetics and Mechanism 41, no. 4 (November 2016): 371–84. http://dx.doi.org/10.3184/174751916x14701459562861.

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The influence of the catalyst particle size in determining Fischer–Tropsch synthesis (FTS) performance for nano-structured iron catalysts was investigated. The catalysts were prepared by a microemulsion method and to achieve a series of catalysts with different iron particle size, the water-to-surfactant molar ratio (W/S) in the microemulsion system varied from 4 to 12. The results demonstrate that by decreasing the levels of active phase of the iron catalyst, the termination rates for chain growth are increased compared to the propagation rates. In addition, the activation energy for chain propagation is lower than for chain termination, and this difference (Et – Ep) for the hydrocarbon product distributions which is characterised by α1, is lower than the hydrocarbon product distribution which is characterised by α2 The results indicate the H2 concentration on the catalyst surface is decreased by increasing the catalyst particle size. Thus, the dependence of α (α1, and/or α2) on H2 partial pressures is increased by decreasing of catalyst particle size and the dependence of α2 on H2 partial pressures is weaker than for α1.

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Ashraf, Ammar, Ahmed Mohamed Abdelrahman, Ahmed Senna, and Fatimah Alsaad. "Congenital High Airway Obstruction Syndrome (CHAOS): No Intervention, No Survival—A Case Report and Literature Review." Case Reports in Radiology 2020 (June 27, 2020): 1–6. http://dx.doi.org/10.1155/2020/1036073.

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Congenital high airway obstruction syndrome (CHAOS) is complete or partial obstruction of the fetal upper airway. CHAOS is a rare and fatal condition if no perinatal intervention is done. Antenatal sonographic imaging has typical findings that can help in an early diagnosis, which is important in deciding elective termination of the pregnancy or successful planning of appropriate perinatal management.

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Le, Q., J. P. Franc, and J. M. Michel. "Partial Cavities: Pressure Pulse Distribution Around Cavity Closure." Journal of Fluids Engineering 115, no. 2 (June 1, 1993): 249–54. http://dx.doi.org/10.1115/1.2910132.

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Pressure pulse height spectra (PPHS) are measured in the case of partial cavitation attached to the leading edge of a hydrofoil. It is shown that the distributions of pressure pulses around cavity closure may significantly differ according to the type of cavity. In the case of a thin, well-closed and stable cavity, the pressure pulse distributions exhibit a strong maximum centered on the visible cavity termination. As the cavity becomes thicker and increasingly open and unsteady, the pressure pulse distribution widens. In the limit case of a cavity periodically shedding bubble clusters, no definite maximum in the pressure pulse distribution is observed. In addition, scaling of pressure pulse height spectra is approached from measurements at two different velocities. It is shown that the pressure pulse height spectra can be correctly transposed from a velocity to another one from two basic scaling rules concerning pulse heights and production rates of bubbles.

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Behram, Mustafa, Salim Sezer, Yasemin Doğan, Züat Acar, Zeynep Gedik Özköse, Alper Gezdirici, and Ali Gedikbaşı. "Does fetal MR alter the management of pregnancy in the diagnosis of isolated corpus callosum agenesis?" Perinatal Journal 28, no. 2 (August 1, 2020): 113–19. http://dx.doi.org/10.2399/prn.20.0282015.

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Objective To determine if fetal MR alters the management of pregnancy and family decisions in the isolated corpus callosum agenesis (CCA) cases or not. Methods Fetal MR was carried out in the cases diagnosed with CCA in the Perinatology Unit of our hospital between 2013 and 2019 after they were differentiated as complex and isolated CCA cases. The impact of MR results on the family decisions and their approaches towards termination were assessed. Results A total of 109 out 139 cases were evaluated as isolated CCA. While 93 (85.32%) of them were diagnosed with the complete CCA, 16 (14.68%) cases were diagnosed with the partial CCA. When the period after 2017 during which fetal MR was recommended to all patients was reviewed, it was seen that 7 (23.3%) of 30 cases who underwent fetal MR and 2 (20%) of 10 cases who did not undergo fetal MR terminated their pregnancies. There was no statistical difference between two groups in terms of the decisions of the patients for gestational termination who did and did not undergo fetal MR. Conclusion Fetal MR imaging in the isolated CCA does not change the decisions of the families for the gestational termination. In terms of the termination decision, week of gestation and socio-cultural factors may have more impacts.

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RABINOVITCH, A., M. FRIEDMAN, and D. BAHAT. "Fracture mechanics model of a fault termination zone." Geological Magazine 149, no. 1 (March 25, 2011): 56–66. http://dx.doi.org/10.1017/s0016756811000227.

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AbstractA fault termination zone from Middle Eocene chalks near Beer Sheva, Israel, is analysed via a fracture mechanical technique. The zone consists of the end of the primary fault, three secondary faults and joints associated with these structures. We demonstrate that the shape of the first secondary fault can be obtained from theoretical fracture mechanical calculations. This shape also enables us to obtain the set of conditions which induced the observed structures. The technique reveals the relative importance of the different variables that appear in the theory. The most significant parameters in determining the shape of the first secondary fault are the vertical dimension of the primary fault, the ratio of the two horizontal differential stresses and the initiation angle of the secondary fault. Results indicate that the fault termination zone was created under an almost pure shear load. The true lateral displacement of the primary fault is unknown; hence, exact calculation of the stresses leading to the secondary fault is hardly possible. However, an estimation, based on a partial conversion of this displacement to an uplift, yields σ1 and σ3 values at initiation of between 3.8 and 7.6 MPa and 3.65 and 7.3 MPa, respectively.

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Morozov, Igor Y., Susana Negrete-Urtasun, Joan Tilburn, Christine A. Jansen, Mark X. Caddick, and Herbert N. Arst. "Nonsense-Mediated mRNA Decay Mutation in Aspergillus nidulans." Eukaryotic Cell 5, no. 11 (September 8, 2006): 1838–46. http://dx.doi.org/10.1128/ec.00220-06.

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ABSTRACT An Aspergillus nidulans mutation, designated nmdA1, has been selected as a partial suppressor of a frameshift mutation and shown to truncate the homologue of the Saccharomyces cerevisiae nonsense-mediated mRNA decay (NMD) surveillance component Nmd2p/Upf2p. nmdA1 elevates steady-state levels of premature termination codon-containing transcripts, as demonstrated using mutations in genes encoding xanthine dehydrogenase (hxA), urate oxidase (uaZ), the transcription factor mediating regulation of gene expression by ambient pH (pacC), and a protease involved in pH signal transduction (palB). nmdA1 can also stabilize pre-mRNA (unspliced) and wild-type transcripts of certain genes. Certain premature termination codon-containing transcripts which escape NMD are relatively stable, a feature more in common with certain nonsense codon-containing mammalian transcripts than with those in S. cerevisiae. As in S. cerevisiae, 5′ nonsense codons are more effective at triggering NMD than 3′ nonsense codons. Unlike the mammalian situation but in common with S. cerevisiae and other lower eukaryotes, A. nidulans is apparently impervious to the position of premature termination codons with respect to the 3′ exon-exon junction.

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Abbot, Dorian S., and Itay Halevy. "Dust Aerosol Important for Snowball Earth Deglaciation." Journal of Climate 23, no. 15 (August 1, 2010): 4121–32. http://dx.doi.org/10.1175/2010jcli3378.1.

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Abstract Most previous global climate model simulations could only produce the termination of Snowball Earth episodes at CO2 partial pressures of several tenths of a bar, which is roughly an order of magnitude higher than recent estimates of CO2 levels during and shortly after Snowball events. These simulations have neglected the impact of dust aerosols on radiative transfer, which is an assumption of potentially grave importance. In this paper it is argued, using the Dust Entrainment and Deposition (DEAD) box model driven by GCM results, that atmospheric dust aerosol concentrations may have been one to two orders of magnitude higher during a Snowball Earth event than today. It is furthermore asserted on the basis of calculations using NCAR’s Single Column Atmospheric Model (SCAM)—a radiative–convective model with sophisticated aerosol, cloud, and radiative parameterizations—that when the surface albedo is high, such increases in dust aerosol loading can produce several times more surface warming than an increase in the partial pressure of CO2 from 10−4 to 10−1 bar. Therefore the conclusion is reached that including dust aerosols in simulations may reconcile the CO2 levels required for Snowball termination in climate models with observations.

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Pang, Si, Bruce E. Rittmann, Chengyang Wu, Lin Yang, Jingzhou Zhou, and Siqing Xia. "Synergistic Inorganic Carbon and Denitrification Genes Contributed to Nitrite Accumulation in a Hydrogen-Based Membrane Biofilm Reactor." Bioengineering 9, no. 5 (May 20, 2022): 222. http://dx.doi.org/10.3390/bioengineering9050222.

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Partial denitrification, the termination of NO3−-N reduction at nitrite (NO2−-N), has received growing interest for treating wastewaters with high ammonium concentrations, because it can be coupled to anammox for total-nitrogen removal. NO2− accumulation in the hydrogen (H2)-based membrane biofilm reactor (MBfR) has rarely been studied, and the mechanisms behind its accumulation have not been defined. This study aimed at achieving the partial denitrification with H2-based autotrophic reducing bacteria in a MBfR. Results showed that by increasing the NO3− loading, increasing the pH, and decreasing the inorganic-carbon concentration, a nitrite transformation rate higher than 68% was achieved. Community analysis indicated that Thauera and Azoarcus became the dominant genera when partial denitrification was occurring. Functional genes abundances proved that partial denitrification to accumulate NO2− was correlated to increases of gene for the form I RuBisCo enzyme (cbbL). This study confirmed the feasibility of autotrophic partial denitrification formed in the MBfR, and revealed the inorganic carbon mechanism in MBfR denitrification.

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Komarov, I. V., D. A. Polyakov, and K. I. Nikitin. "Partial discharges characteristics study in XLPE cable insulation with multiple defects." Omsk Scientific Bulletin, no. 180 (2021): 33–40. http://dx.doi.org/10.25206/1813-8225-2021-180-33-40.

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The paper simulates the electric field intensity picture in the cable with one and several defects. Modeling has shown that the presence of several closely spaced defects does not lead to an increase in the electric field intensity in comparison with one defect. On the basis of experimental studies, an analysis of defects' number influence on various parameters of partial discharges (PD) is performed. Artificial defects are created in the area of the XLPE-insulated cable termination. The following parameters of PD are measured: the magnitude of the apparent charge, the power (intensity) of partial discharges, the phase-resolved partial discharge (PRPD) patterns, the shape of PD signals. The analysis shows an increase in the number of defects does not affect the characteristics of partial discharges, despite the fact the defects are located in different sections of the cable with distributed parameters. Thus, it can be difficult to quantify defects during cable partial discharge measurements.

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Cselkó, Richárd. "Repetition Rate of Partial Discharges in Low Voltage Cables." Periodica Polytechnica Electrical Engineering and Computer Science 64, no. 1 (October 30, 2019): 33–39. http://dx.doi.org/10.3311/ppee.14434.

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Diagnostic testing of low voltage cables by partial discharge measurement has several difficulties. One of them is that the cables are not designed to be partial discharge free at their test voltage. As partial discharge impulses may originate from numerous spots even in new cables, it is expected that impulses reach the termination with high repetition rate. The propagation of impulses in low voltage cables differs from the medium and high voltage cables; there is no lossy semiconducting layer or layers, but the cross section of the conductors are lower. The measurement method of partial discharges has to be adjusted to the discharge type and the propagation path as these determine the frequency content of the individual impulses, and the time resolution of the system has to be appropriate for the expected repetition rate. Measurements have been performed on various types of cables by different methods. Based on the results suggestions are given on the suitable measurement methods.

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ZHANG, H., C. J. GARRAT, and A. V. HOLDEN. "ONSET AND TERMINATION OF REENTRANT EXCITATION IN HOMOGENEOUS HUMAN VIRTUAL ATRIAL TISSUE." International Journal of Bifurcation and Chaos 13, no. 12 (December 2003): 3631–43. http://dx.doi.org/10.1142/s0218127403008867.

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Multicellular models of homogeneous and isotropic human atria have been developed by incorporating cellular models of membrane electrical activity of single human atrial myocyte into a parabolic partial differential equation. These models are used to study the rate dependent conduction velocity of excitation wave, vulnerability of tissue to reentry and dynamical behaviors of reentry. Bidomain models were also developed to study the actions of a large and brief external electrical stimulus on wave propagation in human atria. These studies provide basic insights to understand the onset and termination of atrial arrhythmias in the human heart.

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Straus, Julian, and Sigurd Skogestad. "A new termination criterion for sampling for surrogate model generation using partial least squares regression." Computers & Chemical Engineering 121 (February 2019): 75–85. http://dx.doi.org/10.1016/j.compchemeng.2018.10.008.

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Park, Ji-Man, Ja-Yoon Kang, Young-Chae Moon, Jin-Sik Lee, and Jeong-Chay Jeon. "A Analysis on the Partial Discharge Characteristics of 22.9kV CN-CV Power Cable Termination Defect." Transactions of The Korean Institute of Electrical Engineers 72, no. 11 (November 30, 2023): 1546–53. http://dx.doi.org/10.5370/kiee.2023.72.11.1546.

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Yu, Pei Xiang, Long Zhang, Rui Peng Li, Yu Qi Yang, and Hong Jie Li. "Study on Characteristics of Partial Discharge in XLPE Cable under Damped AC Voltage at Different Frequencies." Advanced Materials Research 1049-1050 (October 2014): 750–53. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.750.

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Damped AC (DAC) voltage method is widely used in partial discharge (PD) detection of power cable. The frequency of DAC voltage is changed due to different length of testing cable. To study the PD characteristics in the heat-shrinkable cable accessories under DAC voltage at different frequencies, four different cases of artificial defects in cross-linked polyethylene (XLPE) cables were investigated. These defects include termination without stress tube, incorrect use of insulation tape as the semi-conductive adhesive tape in the middle joint, void and metal particles on the surface of XLPE insulation. Furthermore, some characteristic PD parameters including the partial discharge inception voltage (PDIV), the partial discharge extinction voltage (PDEV), discharge magnitude, discharge times and so on were compared and analyzed. The results show that PD characteristics are different as the DAC frequency changes, which provides guidance for the practical application.

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Korneyeva, I. A., E. G. Novikova, N. A. Rubtsova, E. Yu Moskovskaya, and K. B. Puzakov. "CURRENT APPROACHES TO EVALUATING THE EFFICIENCY OF TREATMENT FOR REPRODUCTIVE TRACT TUMORS BY RECIST OR GCIG CRITERIA." Russian Journal of Oncology 17, no. 3 (June 15, 2012): 54–56. http://dx.doi.org/10.17816/onco39992.

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The present communication discusses unified criteria for assessing the response evaluation criteria in solid tumors (RESIST) that are used to determine complete and partial responses, stabilization, and progression. It gives a classification of gynecological cancer intergroup (GCIG) criteria for elevated CA125 levels in patients with ovarian cancer after termination of primary therapy, which can determine the time of disease progression in patients having isolated growth of the marker during monitoring, without revealing tumor foci.

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Cho, Alyssa H., Alan W. Hodges, and Carlene A. Chase. "Partial Budget Analysis of Summer Fallows for Organic Nutrient and Weed Management in Florida." HortTechnology 22, no. 2 (April 2012): 258–62. http://dx.doi.org/10.21273/horttech.22.2.258.

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Partial budget analyses of five summer fallow treatments in Florida preceding a cash crop of summer squash (Cucurbita pepo) were conducted. The five treatments were sunn hemp (Crotalaria juncea), velvet bean (Mucuna deeringiana), cowpea (Vigna unguiculata), sorghum-sudangrass (Sorghum bicolor × S. bicolor var. sudanense), and tillage. Costs were estimated for each summer fallow treatment, including the cost of seed, inoculant, implementation, management, and termination. Benefits were calculated in terms of contributions to the following cash crop of summer squash in the form of biologically fixed nitrogen and reduced weed pressure. Results showed that total production costs were minimized by cover crops, even though implementation costs were higher than for tillage.

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Zhang, Wei, Zhi Wei Huang, Rong Xue, Long Zhang, Hong Jie Li, and Chong Xin Liu. "Characteristics of Partial Discharge in Cross-Linked Polyethylene Insulation Cable under Damped AC Voltage." Applied Mechanics and Materials 494-495 (February 2014): 1444–47. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.1444.

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Partial discharge (PD) diagnosis techniques are widely used in the insulation condition monitoring for power cables. In this paper, the damped AC (DAC) voltage method was used to study the PD characteristics in the heat-shrinkable cable accessories. Four different cases of artificial defects in cross-linked polyethylene (XLPE) cables were investigated, and these defects include termination without stress tube, incorrect use of insulation tape as the semi-conductive adhesive tape in the middle joint, void and metal particles on the surface of XLPE insulation. Furthermore, the PD inception voltage and patterns obtained under the DAC voltage are compared with the AC test results.

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Yang, Yi, Hong Wang, Zhenpeng Wang, Xuefeng Pan, and Ying Chen. "First trimester diagnosis of body stalk anomaly complicated by ectopia cordis." Journal of International Medical Research 48, no. 12 (December 2020): 030006052098021. http://dx.doi.org/10.1177/0300060520980210.

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Body stalk anomaly is a rare abnormality characterized by an abdominal wall defect with evisceration of abdominal organs, severe kyphoscoliosis, and a very short or absent umbilical cord. Ectopia cordis (EC) is a rare, lethal anomaly characterized by complete or partial malpositioning of the heart outside of the thorax. A 28-year-old healthy primigravida was referred to our department to undergo a nuchal translucency thickness scan at 12 weeks’ gestation. The scan revealed typical features of body stalk anomaly and EC. Given the lethal condition of the fetus, the patient opted for termination of the pregnancy. Body stalk anomalies, especially those complicated by EC, are universally lethal for the affected fetus. Selective termination should be recommended to avoid possible complications that can arise during pregnancy. Additionally, the future parents should be informed that because the condition is not associated with chromosomal abnormalities, there is no increased risk of recurrence.

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Journal articles on the topic 'Partial termination'

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