bluuebunny/crossref_metadata_2025_split huggingface dataset:
A New Approach of Petrophysical Rock Typing (PRT) for Carbonate Reservoir Using KNN Based on Conventional Wireline Data and Core Analysis Data
Authors: Nie Xiang Bin , Wang An , Hao Jianfei 
Published: March 2023

AbstractFor reservoir simulation, one of the most important part of reservoir characterization is rock typing, where rock quality is evaluated and estimated for any simulation grid and OOIP (original oil in place) is calculated based on average petrophysical parameters for any layer. To allocate different rock types to simulation grids, rock types should be assigned according to ranges of parameters that differentiate different rock types.Based on the experience in carbonate reservoirs of XXXX oilfield and other oilfields, irreducible water saturation (Swi) is a critical differentiation parameter for rock typing, although it can be difficult and expensive to evaluate. In oil zones, water saturation from log data is assumed to be the irreducible water saturation. The problem arises in transition zone and water zone, where water saturation from log data is not equal to the irreducible water saturation of that rock.KNN(K-Nearest Neighbor) is an effective machine learning method for classification and regression in many industries including geo-science. Models can be trained and predict irreducible water saturation from the traditional logs such as GR, Density, Neutron, Sonic using KNN and other Machine Learning methods using labelled data from oil zones. Randomly selected 50% of the dataset was used for training and other 50% was used as testing dataset to be predicted. The prediction precision of KNN method can reach the minimum 92% line for all 25 wells studied and is most robust compared to other methods such as Random Forest and SVM. The trained model was used to predict all the rock types in the reservoir and was confirmed in wells with core data and other advanced measurements data.A new approach of petrophysical rock typing (PRT) for carbonate reservoir using KNN based on traditional wireline data and core analysis data is studied and the results show it can solve the PRT problems in carbonate reservoir simulation without acquiring extra data and additional cost. A new workflow was established to process wireline data and provide the PRT results based on wireline data for every newly drilled well on top of traditional "Porosity-Permeability-Saturation" petrophysical evaluation results. This paper presents the methodology, workflow, results, verification, as well as appropriate application scenarios of this new approach. Considering the requirements of the data input and the workflow of the approach, it could be applied widely in similar carbonate reservoirs.
Analysis of Fracturing Cutter Development and In-Bit Sensing Parameter Optimization when Drilling a Challenging Heterogeneous Section Containing Massive Cherts with a PDC Containing Both Shearing and Fracturing Elements
Authors: Nunez Ygnacio Jesus , Ruiz Fernando , Al Nuaimi Mouza , Amorocho Alexander , Connelly Nicola , El-Hafez Hany , Fierro Juan Carlos 
Published: March 2023

AbstractA PDC design containing updated fracturing elements and utilizing in-bit sensing to optimize parameters can deliver improved ROP and drill a challenging heterogeneous section containing massive chert in one run compared to previously used PDC. The demonstration is supported by a real field case from an unconventional gas exploratory field project in Abu Dhabi.In this unconventional field, seven wells have been drilled using three bits on average to complete the 12 ¼″ section (tricone and PDC) where the presence of chert has resulted in additional trips due to bit life. The content of cherts are large, at approximately 2,000 ft thick, which is the reason why it was decided to think of a new customized PDC bit design and use it in well number seven. The plan is to prove that is possible to achieve one run to TD by fracturing cutter development and optimized drillers roadmap using in-bit sensing.The new unique PDC shaped cutter, with increased point surface area and thicker diamond table, makes the overall design more impact resistant and reduces vibrations while drilling. In bit sensing data is utilized to increase the efficiency in rock interaction through optimized parameters. It will be used in the ongoing exploratory project to demonstrate its advantage in terms of cost saving and rig time reduction.The study will compare the data with previously used bit and create a basement for the exploratory field in 12 ¼″ section. A strong hypothesis is that this bit will complete the well in this particular area and optimize drilling costs in development studies.Where such non-homogenous formations containing massive cherts can be crossed and have detrimental impact on the bit life, the novelty is to bring to the stage an enhanced combined PDC and parameter solution, which will be able to offer a different alternative by reducing torque, having healthier wells, and optimizing drilling cost in this unconventional field where drilling CAPEX reduction are paramount.
A New Research on the Mechanism of Stick-Slip Vibration and the Design of an Auto-Response DOC Controller
Authors: He Zhenguo , Shi Libao , Nie Hongfang , Li Lingxi , Li Canguang 
Published: March 2023

AbstractStick-slip vibration has been a major problem in drilling operations in B basin, Chad, where rocks in basement formation are hard granite. Premature failure of drill bits and string has profoundly undermined the safe and economical drilling operations. Hence, it is urgent to reveal the mechanism of stick-slip vibration and find a way to eliminate or relieve stick-slip problem. Through the numerical and experimental study on the effects of the cutting parameters on cutting performance, root cause on depth of cut (DOC) or cutting depth is revealed as the mechanism of stick-slip vibration, optimized cutting depths for different rock layers are recommended as well. With it, a novel design of auto-response DOC controller is proposed and those structural parameters are modified and via numerical simulation research. After machining and testing, the structure of the auto-response DOC controller is preliminary determined and it has acquired the satisfactory motion performance and met the testing standards as it can slowly retract into the body by resisting the load and quickly extend outward the body. The auto-response DOC controller and the anti-stick-slip PDC bit have profound application potential in developing the ultra-deep and unconventional reservoirs, especially in this era shocked by low oil price and the pandemic.
Retrological glance into the future of criminology as a criminal-legal science
Authors: Gorshenkov G. N. 
Published: March 2023

Objective: to reveal the essence and signiﬁcance of the historical experience of interdisciplinary study of crime and its use in modern conditions of scientiﬁc support of crime prevention.Methods: dialectical method and system-synergetic approach, the method of retrospection in the study and evaluation of historical facts of the complex development of scientiﬁc directions in the legal doctrine of crime and punishment; dogmatic and empirical methods determining the speciﬁcs of scientiﬁc approaches to the general subject of research, their critical analysis; comparative historical assessment of the integration of criminal-legal sciences at various stages of accumulation and development of their scientiﬁc potential; prognostic assessment of the preventive capabilities of the criminal-legal sciences within the frameworks of 5.1.4 scientiﬁc major.Results: in modern criminal jurisprudence, there are ambiguous research approaches to the perception and evaluation of some scientiﬁc provisions. On the one hand, in retrospection, the phenomena are observed which are unproductive in relation to science or generally useless for it (due to uncriticism or formalism). On the other hand, retrospection, being methodologically justiﬁed, serves the scientiﬁc perspective, in particular, the development of associative links of criminal-legal sciences, and the activation of the historically determined general scientiﬁc function of criminology. These processes, if scientiﬁcally optimized, have the prospect of bringing the energies of criminal-legal sciences and relevant practices to a resultant effect, i.e. to a well-coordinated system of combating crime. This is what the aspirations of the founders of the new legal science of crime are aimed at.Scientiﬁc novelty: the possibilities are substantiated of developing a number of aspects of interdisciplinary (within the framework of the 5.1.4 scientiﬁc major) research of crime regularities, of developing and implementing special measures of counteraction in the parameters of criminological and political support. A retrospective analysis of some criminological provisions in their historical connections initiates a deeper understanding of the painful issues that are covered by the category of “crime” (in the individual and cumulative meanings of this term). Initially, there were three main directions of theoretical and applied legal doctrine about crime in the scientiﬁc world of criminal justice: dogmatic-legal, criminological-legal and political-legal. Analytical reﬂections in the parameters of retrospection lead to the comprehension of a very complex nature of the evolution of scientiﬁc thought.Practical signiﬁcance: the theoretical provisions may equip practice; namely, they form a higher and more sustainable level of criminological, or rather, criminological-political thinking, without which effective criminal-legal (legislative, law enforcement) practice is impossible.
Association between plasma irisin and impaired glucose regulation among Chinese young men: a cross-sectional study
Authors: Sun Lina , Fan Dongmei , Ma Yongfang , Wang Xing , Du Guohui , Zhang Weinan , Liu Bowei , Yin Fuzai 
Published: March 2023

Abstract

Objective: To investigate the association between plasma irisin and impaired glucose regulation (IGR) among Chinese young men.
Materials and Methods: This cross-sectional study involved 86 Chinese male subjects, aged 18-45 years, who visited the First Hospital of Qinhuangdao (Hebei, China) in 2017 for annual health check-up. Anthropometric measurements, including height, weight and waist circumference (WC) were performed. All patients underwent an oral glucose tolerance test (OGTT) after 8 hours of fasting, and the levels of glucose, insulin, lipids and serum irisin were measured. Participants were categorized into: normal glucose tolerance (NGT) [fasting plasma glucose (FPG)＜5.6 mmol/L, and 2-h plasma glucose (2hPG) ＜7.8 mmol/L after a 75-g OGTT]; IGR[impaired fasting glucose (IFG) ( 5.6mmol/l ≤FPG＜7.0 mmol/L, and 2hPG＜7.8 mmol/L ) and impaired glucose tolerance (IGT) (FPG＜5.6 mmol/L, and 7.8 mmol/l ≤2hPG＜11.1 mmol/L].
Results: Subjects in the IGR group had higher body mass index (BMI), WC, FPG, 2hPG and homeostasis model assessment of insulin resistance (HOMA-IR), and lower high-density lipoprotein cholesterol(HDL-C) than subjects in the NGT group (P < 0.05). The levels of serum irisin (4.43 ± 1.44 vs. 6.25 ± 1.46 µg/mL) were significantly lower in the IGR group (P<0.05). The prevalence of obesity (42.2% vs. 65.9%), abdominal obesity (66.7% vs. 85.4%), high levels of triglyceride(22.2% vs. 41.5%), low levels of HDL-C (8.9% vs. 41.5%) and low levels of irisin (26.7% vs. 75.6%) was significantly higher among cases in the IGR group (P <0.05). A multiple logistic regression showed that irisin (OR=0.110, P= 0.000) and HOMA-IR (OR=5.586, P = 0.011) were independent risk factors for predicting IGR.
Conclusions: Serum irisin levels were reduced in Chinese young men with IGR. Reduced irisin may increase the occurrence of IGR. It suggested that irisin may predict the occurrence of impaired glucose homeostasis and should be examined in future studies.
Relative contributions of water level components to extreme water levels along the United States Southeast Atlantic Coast from a regional-scale water level hindcast
Authors: Parker Kai , Erikson Li , Thomas Jenny , Nederhoff Kees , Barnard Patrick , Muis Sanne 
Published: March 2023

Abstract
A 38-year hindcast water level product is developed for the United States Southeast Atlantic coastline from the entrance of Chesapeake Bay to the southeast tip of Florida. The water level modelling framework utilized in this study combines a global-scale hydrodynamic model (Global Tide and Surge Model, GTSM-ERA5), a novel ensemble-based tide model, a parameterized wave setup model, and statistical corrections applied to improve modelled water level components. Corrected water level data are found to be skillful, with an RMSE of 13 cm, when compared to observed water level measurement at tide gauge locations. The largest errors in the hindcast are location-based and typically found in the tidal component of the model. Extreme water levels across the region are driven by compound events, in this case referring to combined surge, tide, and wave forcing. However, the relative importance of water level components varies spatially, such that tides are found to be more important in the center of the study region, non-tidal residual water levels to the north, and wave setup in the north and south. Hurricanes drive the most extreme water level events within the study area, but non-hurricane events define the low to mid-level recurrence interval water level events. This study presents a robust analysis of the complex oceanographic factors that drive coastal flood events. This dataset will support a variety of critical coastal research goals including research related to coastal hazards, landscape change, and community risk assessments.
Thoracic anterior spinal cord herniation: treatment and prognosis outcome of 7 patients and review of the literature
Authors: Jiang Qingyu , Gao Gan , Tao Benzhang , Gao Haihao , Wang Hui , Wang Peixin , Sun Mengchun , Shang Aijia 
Published: March 2023

Abstract
Background: This study aimed to investigate the treatment and curative effects of thoracic anterior spinal cord herniation.
Methods: Clinical data of 7 patients with thoracic anterior spinal cord herniation were represented. All patients were diagnosed with a complete pre-operative examination and scheduled for surgical treatment. In addition, regular follow-up was performed after the surgery, and the operation’s efficacy was evaluated according to clinical symptoms, imaging findings, and improvement in neurological function.
Results: All patients underwent spinal cord release with an anterior dural patch. Notably, no severe post-operative surgical complications were observed. 7 patients were followed up for 12–75 months, with an average duration of approximately 46.57 months. Post-operative pain symptoms were effectively controlled, neurological dysfunction and related symptoms improved to varying degrees, and anterior spinal cord herniation did not recur. The modified Japanese Orthopaedic Association score at the last follow-up was significantly higher than the pre-operative score.
Conclusions: Clinicians should avoid misdiagnosing patients with thoracic anterior spinal cord herniation with intervertebral disc herniation, arachnoid cysts, and other related diseases, and patients should undergo surgical treatment as early as possible. In addition, surgical treatment can protect the neurological function of patients and effectively prevent the aggravation of clinical symptoms.
Continuous Triangular Fuzzy Generalized OWA Operator and Its Application to Combined Prediction
Authors: Hu Zhicheng , Zhou Ligang , Zhang Kai , Wang Yixiang 
Published: March 2023

Abstract
In this paper, a new aggregation operator, called the continuous triangular fuzzy generalized ordered weighted averaging (CTF-GOWA) operator, is proposed for aggregating triangular fuzzy numbers (TFNs). In order to adapt to the uncertainty and complexity of prediction, differential polymerization method is used and a special form of CTF-GOWA operator is generated. In particular, the special cases of control parameters and basic unit monotone functions introduced in information aggregation is discussed and its credibility is verified. In addition, the CTF-GOWA operator is applied to the aggregation of multiple TFNs, and various aggregation operators are obtained, including the weighted CTF-GOWA (WCTF-GOWA) operator, the ordered WCTF-GOWA (OWCTF-GOWA) operator, and the combined CTF-GOWA (CCTF-GOWA) operator. Later, the induced variables are added to the OWCTF-GOWA operator to obtain the induced OWCTF-GOWA (IOWCTF-GOWA) operator, which is combined with the cosine similarity degree to construct a combined prediction model about the TFNs. The proposed model has the advantages of less computation, high accuracy, and more adaptability to the actual situation. Finally, the validity of the proposed model is verified by illustrative examples. Sensitivity and comparative analyses are also implemented to assess the stability and validity of our method.
A randomized, controlled clinical study of low molecular weight heparin improving pregnancy outcomes in patients with polycystic ovary syndrome
Authors: Huang Ou , Ding Haixia , wu dandan , Zhang Qing , Li Wen 
Published: March 2023

Abstract
Background: Polycystic ovary syndrome (PCOS), an incidence of 10%-15% in women of reproductive age, shows sex hormone disorders, luteal insufficiency and the tendency of Placental villus space thrombus. The incidence of early pregnancy loss in women with PCOS is 3-8 times higher than that in non-PCOS women. PCOS women were reported in a pre-thrombotic state, which was manifested by accelerated thrombin production, increased PAI-1 activity and fibrinogen. Other research also found an over-activated state of women with PCOS in immune system. Therefore, changing the prethrombotic state of PCOS through anticoagulation may be a new way to improve the adverse pregnancy outcome of PCOS. Low molecular weight heparin (LMWH), the most common used anticoagulant drug in pregnancy, and it also was proposed for the prevention of recurrent abortion. Although, the application of LMWH in PCOS population during early pregnancy has not been reported. The objective of this study is to investigate the effect of LMWH on pregnancy outcomes after invitro fertilization-frozen embryo transfer (IVF-FET) in patients with polycystic ovary syndrome.
Methods:
A total of 376 PCOS women aged between 20 and 38 years which prepared for IVF followed with FET will be enrolled in the study. The patients, from four different hospitals stratified by age and Body mass index (BMI), were randomly divided into the study group who will be treated with LMWH started on the day of progesterone transformation (hormone therapy) during FET cycle, and the control group without additional medicine. Serum or urine hCG test will be given 14 days after embryo transfer to confirm biochemical pregnancy. LMWH+ hormone therapy / hormone therapy will be continued for another 2 weeks if pregnancy positive, withdraw otherwise. Transvaginal ultrasonography will be performed 14 days later to confirm intrauterine pregnancy. The primary outcome is the ongoing pregnancy, which is defined as intrauterine live fetus with ultrasound after 12 weeks of gestation.
Discussion: This is the first study protocol to investigate the efficacy of LMWH as an adjuvant drug for IVF-FET outcomes in PCOS women, by comparing differences in ongoing pregnancy rate, clinical pregnancy rate, live birth rate, and early pregnancy loss rate between LMWH group and the control group.
Trial registration: ChiCTR2000036527. Registered August 24, 2020. This trial protocol is version 2.0
Unravelling specific diet and gut microbial contributions to inflammatory bowel disease
Authors: Martens Eric , Pereira Gabriel , Boudaud Marie , Wolter Mathis , Alexander Celeste , De Sciscio Alessandro , Grant Erica , Trindade Bruno Caetano , Pudlo Nicholas , Singh Shaleni , Campbell Austin , Shan Mengrou , Zhang Li , Willieme Stéphanie , Kim Kwi , Denike-Duval Trisha , Bleich André , Schmidt Thomas , Kennedy Lucy , Lyssiotis Costas , Chen Grace , Eaton Kathryn , Desai Mahesh 
Published: March 2023

Abstract
Inflammatory bowel disease (IBD) is a chronic condition characterized by periods of spontaneous intestinal inflammation and is increasing in industrialized populations. Combined with host genetic predisposition, diet and gut bacteria are thought to be prominent features contributing to IBD, but little is known about the precise mechanisms involved. Here, we show that low dietary fiber promotes bacterial erosion of protective colonic mucus, leading to lethal colitis in mice lacking the IBD-associated cytokine, interleukin-10. Diet-induced inflammation is driven by mucin-degrading bacteria-mediated Th1 immune responses and is preceded by expansion of natural killer T cells and reduced immunoglobulin A coating of some bacteria. Surprisingly, an exclusive enteral nutrition diet, also lacking dietary fiber, reduced disease by increasing bacterial production of isobutyrate, which was dependent on the presence of a specific bacterial species, Eubacterium rectale. Our results illuminate a mechanistic framework using gnotobiotic mice to unravel the complex web of diet, host and microbial factors that influence IBD.
Co-occurrence network of soil bacterial communities in agricultural fields in central Yunnan under different fertilization treatments
Authors: ZHANG Xiao-Hua , Wang Keqin , Yang Xin , Hu Chun , Song Yali 
Published: March 2023

Abstract

Aims
Soil microbial communities contribute to crops' growth, health, and productivity during agricultural production. However, how different fertilization practices affect the diversity, composition, and co-occurrence networks of soil bacterial communities during the different tobacco growth stages remains elusive.
Methods
Here, we report on the soil bacterial communities' alterations and their characteristics after fertilizer application at different tobacco growth stages and fallow periods. The experiments were performed in long-term continuous crop tobacco fields by applying different fertilizers (control (CK), cattle manure organic fertilizer (OM), cattle manure organic fertilizer chemical fertilizer mix (MNPK), chemical fertilizer (NPK), and crushed straw (ST)) at the time of tobacco planting. The soil bacterial communities were assessed using high-throughput sequencing technology and molecular ecological network methods.
Results
Soil bacterial diversity did not exhibit substantial alterations after fertilizer application during the growing period of roasted tobacco. The bacterial diversity was only increased in the fallow period, and the bacterial community composition was altered in the maturation and fallow periods. The bacterial community functions were mainly influenced by the roasted tobacco cultivation stage and did not exhibit substantial differences in response to fertilizer application. Bacterial interspecies relationships throughout the tobacco planting cycle were mainly cooperative. The co-occurrence networks were divided into four modules with the following network stability across the different growth periods: retardation period > maturation period > fallow period > fast growth period. The key taxa of the co-occurrence network were significantly decreased in abundance during tobacco cultivation's peak and maturity periods and gradually recovered after following. Fertilizer application significantly affected the bacterial co-occurrence network and thus influenced the bacterial community functions and enzyme activity, mainly by increasing soil nutrients (alkaline nitrogen and available phosphorus).
Conclusion
The application of straw, chemical fertilizer, and cow manure organic fertilizer mixed with chemical fertilizer resulted in the improved growth of roasted tobacco. On the other hand application of organic matter fertilizer (straw and cow manure) as a base fertilizer could reverse the bacterial co-occurrence network changes after the fallow period and improve the overall health of the tobacco-planted soil.