Miracle-dz/UniFAR-FTUs huggingface dataset:
Suppression of voltage gain fluctuation in LLC Resonant Converter Based on chaotic spread spectrum

In order to realize the voltage stable output of the LLC resonant converter under different loads, a voltage gain fluctuation suppression technology of the LLC resonant converter based on a chaotic spread spectrum is proposed. The gain fluctuation electromagnetic interference signal is eliminated by the Chua’s circuit; The rated voltage value is discretized, and the target network and the evaluation network are used to form a deep Q network, with the multi-threshold judgment method and the variable step method respectively completed the gain fluctuation suppression target under different working conditions. The experimental results show that the proposed technology can achieve stable voltage output in both dynamic and steady-state conditions, with good gain fluctuation suppression effect and strong timeliness. It provides data reference for the rational application of the LLC resonant converter.
Bem Study of 3D Heat Conduction in Multiply Adjoined Anisotropic Media with Quadratic Domain Heat Generation

In engineering, it is quite often to have applications of the heat transfer of conduction having domain heat generation present inside. The paper aims to present boundary element formulations for analyzing the three-dimensional heat-conduction in dissimilarly bonded anisotropic media involving quadratic volume heat sources. In this paper, the additional volume integral present in the boundary integral equation is analytically transformed to the boundary surface for the volume heat sources modeled by quadratic functions. The technique of domain-mapping is employed to treat the three-dimensional anisotropic heat conduction in multiply adjoined media with proper interfacial conditions provided. For showing our successful implementation, a few example cases are analyzed with verification of independent analyses by the finite element method.
Control Strategy of Circulating Current Suppression for Modular Multilevel Converter

The structural characteristics of modular multilevel converters (MMC) lead to circulating current problems, which increases the requirements for device capacity and withstand voltage levels. Therefore, this paper proposes a circulating current suppression strategy based on new sliding mode control. This strategy uses a variable approach rate to reduce chattering caused by sliding mode control. Compared with the circulating current suppression strategy using traditional PI control, it enhances the anti-interference of the circulating current suppression strategy. Finally, this paper builds the MATLAB/Simulink simulation model and experimental platform. The results show that the strategy has good anti-interference performance.
The Coordinated Protection of the Whole Ship’s Power System of 143-meter Fishery Refrigerated Transport Ship

The selective protection of over-current is the focus of the protection of the entire ship’s power system, it ensures the reliability of safe operation of the ship’s power system. The article takes the 143-meter fishery refrigerated transport ship (No.992 Fuyuan Yuyun) as an example to analyze the selective protection of over-current, and the coordination analysis of various protective appliances is carried out.
Scratch Detection Method of Shaft Parts Based on Improved YOLOv5

The pre-extracted target object is always distorted due to many parts spots, surface reflection and other factors in traditional visual inspection. Therefore, a detection process based on improved YOLOv5 is proposed. In the early stage, for the optimization of light source, the circular light is generally used to successfully extract the region of interest, so as to reduce the scratches caused by image pretreatment, resulting in detection omission and distortion. Adding the ACON (All Class in One Network, ACON) activation function can improve the network feature extraction ability and the accuracy of the detection algorithm. Bounding box loss, means of target detection loss and classification loss are all significantly improved by the improved algorithm, far exceeding the performance of traditional detection methods, and all have a certain degree of reduction.
Simulation-based Multi-unit Collaborative Optimization in Data Centers

With the rapid development of information technology in China, the problem of energy conservation in data centers has become increasingly prominent, and the green data center model is inevitable. The refrigeration equipment which is the main power consumption in the data center is affected by the environment, room temperature, unit output, and other factors. This paper provides a scheme of multi-unit collaborative optimization cooling. It is mainly divided into four stages: first, a model of the data center is built through Modelica, and it is exported as a fmu file. Second, the PSO optimization strategy is used to generate the data sets which contain unit output and cooling effect at different times. Third, LSTM and TCN load forecasting models are trained. Finally, through a comparison of various optimization algorithms, the PSO-LSTM-TCN model is used to simulate the unit output and optimize the output parameters of multiple units.
UAV Swarm Reconfiguration Based on Improved Artificial Physics and Virtual Structure

The reconfiguration problem was researched for the homogenous fixed-wing unmanned aerial vehicle (UAV) swarm. The kinematic model of a fixed-wing UAV was constructed. The virtual structure expressed the desired swarm configuration. A node in the virtual structure represented the desired position of a UAV. The improved artificial physics (AP) method used the node to produce the attraction to a UAV. The repulsion was designed for the UAVs to avoid collisions among them during the swarm reconfiguration. The UAV controller included the attraction, the repulsion, and the damp term. The damp term reduced the chattering process of the UAV’s flight states. A numerical simulation was carried out to show the reconfiguration process of the UAV swarm. The simulation results validate that the designed controller can drive the UAV to avoid collisions with other UAVs and to successfully complete the swarm reconfiguration process.
Single-worm long-read sequencing reveals genome diversity in free-living nematodes

Obtaining sufficient genetic material from a limited biological source is currently the primary operational bottleneck in studies investigating biodiversity and genome evolution. In this study, we employed multiple displacement amplification (MDA) and Smartseq2 to amplify nanograms of genomic DNA and mRNA, respectively from individual Caenorhabditis elegans. Although reduced genome coverage was observed in repetitive regions, we produced assemblies covering 98% of the reference genome using long-read sequences generated with Oxford Nanopore Technologies (ONT). Annotation with the sequenced transcriptome coupled with the available assembly revealed that gene predictions were more accurate, complete and contained far fewer false positives than de novo transcriptome assembly approaches. We sampled and sequenced the genomes and transcriptomes of 13 nematodes from Dorylaimia, Enoplia, and early-branching species in Chromadoria. These free-living species had larger genome sizes, ranging from 147-792 Mb, compared to those of the parasitic lifestyle. Nine mitogenomes were fully assembled and displaying a complete lack of synteny to other species. Phylogenomic analyses based on the new annotations revealed strong support for Enoplia as sister to the rest of Nematoda. Our result demonstrates the robustness of MDA in combination with ONT, paving the way for the study of genome diversity in the phylum Nematoda and beyond.
Assessing the reliability of pediatric emergency medicine billing code assignment for future consideration as a proxy workload measure

Objectives Prediction of pediatric emergency department (PED) workload can allow for optimized allocation of resources to improve patient care and reduce physician burnout. A measure of PED workload is thus required, but to date no variable has been consistently used or could be validated against for this purpose. Billing codes, a variable assigned by physicians to reflect the complexity of medical decision making, have the potential to be a proxy measure of PED workload but must be assessed for reliability. In this study, we investigated how reliably billing codes are assigned by PED physicians, and factors that affect the inter-rater reliability of billing code assignment. Methods A retrospective cross-sectional study was completed to determine the reliability of billing code assigned by physicians (n = 150) at a quaternary-level PED between January 2018 and December 2018. Clinical visit information was extracted from health records and presented to a billing auditor, who independently assigned a billing code–considered as the criterion standard. Inter-rater reliability was calculated to assess agreement between the physician-assigned versus billing auditor-assigned billing codes. Unadjusted and adjusted logistic regression models were used to assess the association between covariables of interest and inter-rater reliability. Results Overall, we found substantial inter-rater reliability (AC2 0.72 [95% CI 0.64–0.8]) between the billing codes assigned by physicians compared to those assigned by the billing auditor. Adjusted logistic regression models controlling for Pediatric Canadian Triage and Acuity scores, disposition, and time of day suggest that clinical trainee involvement is significantly associated with increased inter-rater reliability. Conclusions Our work identified that there is substantial agreement between PED physician and a billing auditor assigned billing codes, and thus are reliably assigned by PED physicians. This is a crucial step in validating billing codes as a potential proxy measure of pediatric emergency physician workload.
Molecular Classification of Endometrial Cancer and the 2023 FIGO Staging: Exploring the Challenges and Opportunities for Pathologists

Simple Summary In this commentary, I delve into the complexities and potential of the recently proposed 2023 FIGO staging system for endometrial cancer, with a focus on the incorporation of molecular classifications. I aim to evaluate the predictive capacity of histology and molecular testing, emphasizing the challenge of utilizing the POLE mutation test in determining prognosis. By addressing challenges like discerning synchronous independent tumors from metastatic ones when both endometrium and ovary are involved, and considering new elements such as lymph node metastasis size, this work may inform future treatment approaches, reinforcing the indispensable role of pathologists in this evolving landscape. Abstract This commentary explores the complexities of the FIGO 2023 staging system and the inclusion of The Cancer Genome Atlas’s (TCGA) molecular classification in the management of endometrial cancer. It highlights the importance of histology as a prognostic tool, while scrutinizing the merits and demerits of its application to aggressive endometrial cancers. The commentary review sheds light on the recent introductions of lymphovascular space invasion (LVSI) and lymph node metastasis size in cancer staging. It outlines the difficulties in differentiating between synchronous and metastatic endometrial and ovarian cancers, underlining their implications on treatment strategies. Furthermore, the commentary discusses the integration of molecular classifications within the FIGO 2023 framework, emphasizing the pivotal yet challenging implementation of the pathogenic POLE mutation test. The commentary concludes by reaffirming the vital role of pathologists in executing the FIGO 2023 staging system.
The effects of land use and management practices on soil microbial diversity as determined by PCR-DGGE and CLPP.

The environmental impact of anthropogenic disturbances such as agriculture, on the soil ecosystem, and particularly on soil microbial structural and functional diversity, is of great importance to soil health, conservation and remediation. Therefore, this study assessed the effects of various land use and management practices on both the structural (genetic) and functional (catabolic) diversity of the soil bacterial and fungal communities, at two long-term sites in KwaZulu-Natal. The first site is situated at Baynesfield Estate, and the second at Mount Edgecombe Sugarcane Research Institute. At site 1, the land uses investigated included soils under pre-harvest burnt sugarcane (Saccharum officinarum, Linn.) (SC); maize (Zea mays, Linn.) under conventional tillage (M); permanent kikuyu (Pennisetum clandestinum, Chiov) pasture (KIK); pine (Pinus patula, Schiede) plantation (PF); and wattle (Acacia mearnsii, De Wild) plantation (W), all fertilized; and undisturbed native grassland (NAT) that had never been cultivated or fertilized. At site 2, a sugarcane (Saccharum officinarum × S. spontaneum var. N27) pre-harvest burning and crop residue retention trial was investigated. The treatments studied included conventional pre-harvest burning of sugarcane with the tops removed (Bto), and green cane harvesting with retention of crop residues on the soil surface as a trash blanket (T). Each of these treatments was either fertilized (F) or unfertilized (Fo). The polymerase chain reaction (PCR), followed by denaturing gradient gel electrophoresis (DGGE) were used to determine the structural diversity, and community level physiological profiling (CLPP) using BIOLOG plates, the catabolic diversity. In addition, the soils were analysed with respect to selected physicochemical variables, and the effects of these on the soil microbial communities were determined. Replicate soil samples (0–5 cm) were randomly collected from three independent locations within each land use and management, at both sites. Soil suspensions for the CLPP analyses were prepared from fresh soil subsamples (within 24 h of collection) for the bacterial community analyses, and from 8-day-old soil subsamples (incubated at 4°C to allow for spore germination) for the fungal community analyses. BIOLOG EcoPlatesTM were used for the bacterial CLPP study and SF-N2 MicroPlatesTM for the fungal analysis, the protocols being adapted and
Biomasse, production et dynamique des populations de Nereis diversicolor (annélide polychète) de l'estuaire de la Loire (France)

L'etude, qui prend en compte les variations saisonnieres de la densite et de la biomasse,permet en separant les cohortes a l'aide du logiciel Bhatta, adapte a la methode de Bhattacharya de determiner la croissance et la production.Le rapport production/biomasse est alors compare aux donnees de la Cote Atlantique
Innovations in Rural Extension: Case Studies from Bangladesh

Part I: Introduction New road map, P Van Mele Part II: Gender The right to learn: women want more agricultural advice, T Paris, International Rice Research Institute, Philippines, S Arifa Nabi, International Rice Research Institute, Bangladesh, A Salahuddin and N P Magor Breaking down barriers: village women spread the word, H L Nessa, Geneticist, Bangladesh, and P Van Mele Family approach in extension, H-A-Rashid, Agricultural Advisory Society, Bangladesh Bringing science to life: video development for women-to-women extension, P Van Mele, A K M Zakaria, The Rural Development Academy, Bangladesh, R Nasrin and B Chakroborty, TMSS, Bangladesh, M Haque, RDA, Bangladesh, and J Rodgers, Countrywise Communication, UK Part III: Learning with rural communities Creative learning methods, J W Bentley, Consultant, Bolivia, and P Van Mele Watch and learn: video education for appropriate technology, P Van Mele, A K M Zakaria and J W Bentley Village soil fertility maps, M Abu Saleque, Bangladesh Rice Research Institute, H-A-Rashid, P Van Mele, and J W Bentley Going public: a quick way to interact with communities, P Nash, CABI Bioscience, UK, and P Van Mele Picture songs, J W Bentley, M Nuruzzaman and Q W Nawaz, Shushilan, Bangladesh, and R Haque Part IV: Enterprise webs The enterprise web, N P Magor Integrated rice-duck: a new farming system for Bangladesh, M A Khan, Friends in Village Development, Bangladesh, G J U Ahmed, Bangladesh Rice Research Institute, N P Magor and A Salahuddin Pump it up: developing a pro-poor mobile pump market, B Alam, International Development Enterprises, Bangladesh, N P Magor and P Van Mele Adding flavour: a value chain approach for aromatic rice, M Hassanullah, Agricultural Marketing Specialist, Bangladesh, A Salam, APEX, Bangladesh, S Ahmed, Consultant, Bangladesh, and N P Magor Part V: Pro-poor seed systems Innovations in seed systems, S Danielsen, Danida, Nicaragua, K Bashar, Bangladesh Rice Research Institute, and M Holderness, CABI Bioscience, UK More is more: validating rice varieties with NGOs and poor farmers, M Husain, Bangladesh Rice Research Institute Building a rice seed network, K Bashar, A Salahuddin and P Van Mele Farmseed: putting farmers at the heart of the seed system, P Van Mele Grameen seed: Grameen experiments with a pro-poor seed business, P Van Mele, A Salahuddin, and A Jabbar, Grameen Krishi Foundation, Bangladesh Innovating with federations: community institutions take the lead in seed marketing, S Samsuzzaman, RDRS, Bangladesh, and P Van Mele Part VI: Synthesis People and pro-poor innovation systems, P Van Mele, A Salahuddin and N P Magor
Harvesting cereals at Tappeh Sang-e Chakhmaq and the introduction of farming in Northeastern Iran during the Neolithic

Tappeh Sang-e Chakhmaq is the only Neolithic site in Northeastern Iran, characterised by aceramic and ceramic levels corresponding to an occupation of 1500 years from the eighth to the end of the sixth millennium BCE. The Western and Eastern Mounds represent the oldest and longest occupation among the sites identified East of the Zagros, providing a unique context to explore the origin and spread of farming outside the core area of the Eastern Fertile Crescent. We present data about the first harvesting activities in the Northeastern Iranian Central Plateau by applying usewear and microtexture analysis through confocal microscopy on sickle gloss blades. Our results indicate a community of pioneer farmers who settled down in the area carrying with them both domestic cereals as well as advanced techniques of cereal cultivation. We demonstrate that most of the tools were used for harvesting cereals in a fully ripened state collected near the ground, indicating a well-established cereal cultivation strategy. The use of straight shafts with parallel inserts in Tappeh Sang-e Chakhmaq, as known in some sites in the Zagros, suggests the dispersal of farming practices and technologies from the Eastern Fertile Crescent north-eastward across Iran. We observe an evolution in the degree of ripeness of harvested cereals along the first four levels of occupation of the Western Mound, where semi-ripe harvesting is relatively important, suggesting that domestic cereals to be harvested before full maturity were introduced into the village. From the topmost of the Western Mound and along the occupation of the Eastern Mound, ripe harvesting is dominant, showing a well-established cultivation strategy of fully mature cereal. This shift could indicate an in-situ evolution towards a better-established agricultural technology, including harvesting riper crops, that would have resulted in higher yields, as cereals were collected when the grain was fully formed.
Evaluating operational parameters of the careHPV, GeneXpert, AmpFire, and MA-6000 HPV systems for cervical precancer screening: Experience from Battor, Ghana

In response to calls by the World Health Organization for cervical precancer screening services in low-resource settings to lean toward HPV DNA testing, a number of testing platforms have been made available. This study aimed to evaluate the operational parameters of four HPV testing systems in previous (careHPV) and current (GeneXpert, AmpFire, and MA-6000) use in a secondary healthcare setting in terms of ‘appropriateness’, ease of use, throughput, and diagnostic yield. This descriptive retrospective cohort analysis included 6056 women who presented to our facility between June 2016 and March 2022 for cervical precancer screening via HPV testing. A large majority of this cohort underwent AmpFire testing (55.8%), followed by careHPV (23.3%), MA-6000 (14.7%), and GeneXpert (6.1%). MA-6000 showed the highest hr-HPV positivity rate of 26.4% (95% CI, 23.6–29.5), followed by AmpFire (17.2%; 95% CI, 15.9–17.5). GeneXpert and careHPV showed similar hr-HPV positivity rates of 14.8% (95% CI, 11.3–18.8) and 14.8% (95% CI, 13.0–16.8), respectively. For the AmpFire and MA-6000 platforms, which utilize similar detection and reporting formats, we found a significant excess detection rate of 9.2% (95% CI, 6.1–12.4; p-value <0.0001) for MA-6000 compared to AmpFire. At the genotype level, MA-6000 also detected significantly higher rates of HPV 16 and other hr-HPV types (both p-values <0.001) than AmpFire; there was no difference in detection for HPV 18. Based on our experiences and preliminary analysis, we believe that the choice of HPV testing platform cannot be accomplished with a one-size-fits-all approach. Factors worth considering are the financial implications of platform acquisition, costs to clients, and throughput when screening programs are not sufficiently large. We describe our successes and challenges with the different platforms which we believe will be helpful to centers in low-income countries as they transition into using HPV DNA testing for cervical precancer screening.
Double-blind placebo-controlled evaluation of the PROMETA™ protocol for methamphetamine dependence.

AIMS To evaluate the efficacy and safety of the PROMETA™ Protocol for treating methamphetamine dependence. DESIGN A double-blind, placebo-controlled 108-day study with random assignment to one of two study conditions: active medication with flumazenil (2 mg infusions on days 1, 2, 3, 22, 23), gabapentin (1200 mg to day 40) and hydroxazine (50 mg to day 10) versus placebo medication (with active hydroxazine only). SETTING Three substance abuse treatment clinics: two in-patient, one out-patient. PARTICIPANTS Treatment-seeking, methamphetamine-dependent adults (n = 120). MEASUREMENTS Primary outcome was percentage of urine samples testing negative for methamphetamine during the trial. FINDINGS No statistically significant between-group differences were detected in urine drug test results, craving, treatment retention or adverse events. CONCLUSIONS The PROMETA protocol, consisting of flumazenil, gabapentin and hydroxyzine, appears to be no more effective than placebo in reducing methamphetamine use, retaining patients in treatment or reducing methamphetamine craving.