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World Journal of Gastrointestinal Surgery 2024年第6期16卷 1910-1917页

作者： Akihiro Cho Satoshi Katagiri Masao Ota Shunsuke Onizawa Ryota higuchi Toshiya Sugishita Yukiko Niwa Takeshi Ishita Toshihiko mouri.Akita Kato Moe Iwata Division of Gastroenterological Surgery Tokyo Women’s Medical UniversityYachiyo Medical CenterChiba 276-8524Japan

BACKGROUND Emergency pancreaticoduodenectomy(EPD)is a rare event for complex periam-pullary *** intraoperative blood loss is correlated with poor post-operative *** SUMMARY Two patients underwent EPD using a no-touch isolation technique,in which all arteries supplying the pancreatic head region were ligated and divided before manipulation of the pancreatic head and *** operative times were 220 and 239 min,and the blood loss was 70 and 270 g,*** patients were discharged on the 14^(th) and 10^(th) postoperative day,***-two patients underwent EPD for the treatment of neoplastic *** mean operative time was 361.6 min,and the mean blood loss was 747.3 *** comp-lication rate was 37.5%.The in-hospital mortality rate was 9.38%.CONCLUSION The no-touch isolation technique is feasible,safe,and effective for reducing intraoperative blood loss in EPD.

关键词： No-touch isolation technique Pancreaticoduodenectomy Emergency pancre-aticoduodenectomy Neoplastic bleeding Superior mesenteric artery first approach Case report

Protein-S-100-beta is increased in patients with decompensated cirrhosis admitted to ICU

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Journal of Intensive Medicine 2024年第2期4卷 222-230页

作者： Nicolas Weiss Simona Tripon Maxime Mallet Françoise Imbert-Bismut Mehdi Sakka Dominique Bonnefont-Rousselot Philippe Sultanik Sarah mouri.Marika Rudler Dominique Thabut Sorbonne Université AP-HP.Sorbonne UniversitéHôpital de la Pitié-SalpêtrièreDépartement de NeurologieUnitéde Médecine Intensive RéanimationàOrientation NeurologiqueParisFrance Brain Liver Pitié-Salpêtrière(BLIPS)Study Group INSERM UMR_S 938Centre de recherche Saint-AntoineMaladies métaboliquesBiliaires et Fibro-Inflammatoire du FoieInstitute of Cardiometabolism and Nutrition(ICAN)ParisFrance Groupe de Recherche Clinique en REanimation et Soins intensifs du Patient en Insuffisance Respiratoire aiguE(GRC-RESPIRE)Sorbonne Université ParisFrance Assistance Publique-hôpitaux de Paris AP-HP.Sorbonne UniversitéHôpital de la Pitié-SalpêtrièreService d'hépato-GastroentérologieUnitéde Soins Intensifs d'HépatologieParisFrance Assistance Publique-hôpitaux de Paris AP-HP.Sorbonne UniversitéService de Biochimie MétaboliqueHôpitaux Universitaires Pitié-Salpêtrière-Charles FoixDMU BioGeMParis F-75013France UniversitéParis Cité UFR de PharmacieCNRSInsermUTCBSParisFrance

Background hepatic encephalopathy(hE)is highly prevalent in patients with liver *** pathophysiology of hE is centered on the synergic role of hyperammonemia and systemic ***,some data suggest altered functioning of the blood–brain barrier(BBB).Assessing BBB function is challenging in clinical practice and at the ***-S-100 Beta(PS100-Beta)could be a useful peripheral marker of BBB permeability in *** study aimed to assess plasmatic PS100-Beta levels in a prospective cohort of patients admitted to the intensive care unit(ICU)with decompensated cirrhosis with and without overt *** We retrospectively evaluated a prospective cohort of cirrhotic patients admitted to the ICU from October 2013 to September 2015 that had an available plasmatic PS100-Beta *** with previous neurological impairment or limitation of intensive or resuscitative measures were *** hE was defined as West-haven grades 2 to *** patients were compared to a control cohort of outpatient clinic cirrhotic and non-cirrhotic patients explored for isolated elevation of liver *** ICU discharge,the patients were followed for at least 3 months for the occurrence of overt *** outcomes(liver transplantation or death)were *** ability of PS100-Beta–in combination with other factors–to predict overt hE was evaluated in a multivariate analysis using logistic *** ratios were used to determine the effects and calculate odds ratios(OR).Survival analysis was performed by using the Kaplan–Meier method and survival between groups was compared using a Log-rank *** A total of 194 ICU patients and 207 outpatients were included in the *** levels of plasmatic PS100-Beta were detected in the ICU decompensated cirrhotic patients compared with the outpatients([0.15±0.01]mg/L vs.[0.08±0]mg/L,Ph overt hE had higher levels of PS100-Beta([0.19±0.03]mg/L)compared with the

关键词： Cirrhosis hepatic encephalopathy Blood-brain barrier PS100-Beta Liver disease

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用无机填充剂提高轮胎湿路面牵引性能

轮胎研究与开发 2000年第1期26卷 19-23页

作者：曾泽新 mouri.,h

白炭黑被广泛地用于轿车轮胎胎面，因为用白炭黑比完全用炭黑更能改善湿路面牵引性能和滚动阻力之间的平衡。用白炭黑提高湿路面牵引性能性能归因于在高频产生的能量损失不同。在白炭黑胶料与炭黑产的粘弹性试验中，通过时间－温度叠加... 详细信息

白炭黑被广泛地用于轿车轮胎胎面，因为用白炭黑比完全用炭黑更能改善湿路面牵引性能和滚动阻力之间的平衡。用白炭黑提高湿路面牵引性能性能归因于在高频产生的能量损失不同。在白炭黑胶料与炭黑产的粘弹性试验中，通过时间－温度叠加原理可以确定，根据平移因子的差异可以推断出能量损失的差异，经进一步研究表明，涂白炭黑外，一些无机填充剂均具有同样的特性，因此。

关键词：轮胎湿路面牵引性无机填充剂橡胶

Free vibration and buckling analysis of polymeric composite beams reinforced by functionally graded bamboo fbers

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Applied Mathematics and Mechanics(English Edition) 2024年第3期45卷 543-562页

作者： h.M.FEIZABAD M.h.YAS Department of Mechanical Engineering Razi UniversityKermanshah ***Iran

Natural fibers have been extensively researched as reinforcement materials in polymers on account of their environmental and economic advantages in comparison with synthetic fibers in the recent *** fibers are renowned for their good mechanical properties,abundance,and short cycle *** beams are one of the fundamental structural components and are susceptible to mechanical loads in engineering applications,this paper performs a study on the free vibration and buckling responses of bamboo fiber reinforced composite(BFRC)beams on the elastic *** different functionally graded(FG)layouts and a uniform one are the considered distributions for unidirectional long bamboo fibers across the *** elastic properties of the composite are determined with the law of *** hamilton’s principle,the governing equations of motion are *** generalized differential quadrature method(GDQM)is then applied to the equations to obtain the *** achieved outcomes exhibit that the natural frequency and buckling load values vary as the fiber volume fractions and distributions,elastic foundation stiffness values,and boundary conditions(BCs)and slenderness ratio of the beam ***,a comparative study is conducted between the derived analysis outcomes for BFRC and homogenous polymer beams to examine the effectiveness of bamboo fibers as reinforcement materials,demonstrating the significant enhancements in both vibration and buckling responses,with the exception of natural frequencies for cantilever beams on the Pasternak foundation with the FG-◇fiber ***,the obtained analysis results of BFRC beams are also compared with those for carbon nanotube reinforced composite(CNTRC)beams found in the literature,indicating that the buckling loads and natural frequencies of BFRC beams are lower than those of CNTRC beams.

关键词： bamboo fiber free vibration buckling analysis functionally graded(FG)beam elastic foundation generalized differential quadrature method(GDQM)

Convexification of hybrid AC-DC Optimal Power Flow with Line-Commutated Converters

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CSEE Journal of Power and Energy Systems 2024年第2期10卷 617-628页

作者： hongyuan Liang Zhigang Li J.h.Zheng Q.h.Wu School of Electric Power Engineering South China University of TechnologyGuangzhou 510641China

Line-commutated converter (LCC)-based high-voltage DC (hVDC) systems have been integrated with bulk AC power grids for interregional transmission of renewable power. The nonlinear LCC model brings additional nonconvexity to optimal power flow (OPF) of hybrid AC-DC power grids. A convexification method for the LCC station model could address such nonconvexity but has rarely been discussed. We devise an equivalent reformulation for classical LCC station models that facilitates second-order cone convex relaxation for the OPF of LCC-based AC-DC power grids. We also propose sufficient conditions for exactness of convex relaxation with its proof. Equivalence of the proposed LCC station models and properties, exactness, and effectiveness of convex relaxation are verified using four numerical simulations. Simulation results demonstrate a globally optimal solution of the original OPF can be efficiently obtained from relaxed model.

关键词： AC-DC power system convex relaxation linecommutated converter optimal power flow second-order cone programming

Shell-model representations of the microscopic version of the Bohr–Mottelson collective model

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Communications in Theoretical Physics 2024年第8期76卷 81-92页

作者： h G Ganev Joint Institute for Nuclear Research Dubna Russia Institute of Mechanics Bulgarian Academy of Sciences

The structure of the irreducible collective spaces of the group Sp（12, R）, which many-particle nuclear states are classified according to the chain Sp（12, R） ? U（6） ? SO（6） ? SUpn（3） ■SO（2） ? SO（3） of the proton–neutron symplectic model（PNSM）, is considered in detail. This chain of the PNSM was recently shown to correspond to a microscopic shell-model version of the Bohr–Mottelson collective model. The construction of the relevant shell-model representations of the Sp（12, R） group along this chain is considered for three nuclei with varying collective properties and from different mass regions. It is shown that the SUpn（3） basis states of the Sp（12, R） representations belonging to the SO（6） irreps with seniority υ ≥ υ0, with υ0denoting the maximal seniority SO（6） irrep contained in the Sp（12, R） bandhead, are always Pauli allowed, but organized in a different way into different SO（6） shells. This is in contrast to the case of filling the levels of the standard three-dimensional harmonic oscillator and using the plethysm operation. Although the SUpn（3） multiplets within υ hem. The results obtained in the present work are important for the practical application of the microscopic version of the Bohr–Mottelson collective model.

关键词： microscopic shell-model version of the Bohr-Mottelson model proton-neutron symplectic model shell-model representations Sp(12, R) dynamical algebra

holographic dark energy in non-conserved gravity theory

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Communications in Theoretical Physics 2024年第4期76卷 126-133页

作者： h R Fazlollahi Institute of Gravitation and Cosmology Peoples Friendship University of Russia(RUDN University)6 Miklukho-Maklaya StMoscow117198Russia

Recently, reconsidering the Rastall idea T_(μ;νν)^(v)=α_(,μ) through relativistic thermodynamics gives a new form for the scalar field α which led us to construct modern modified theory of gravity debugged ‘non-conserved gravity theory’ Fazlollahi 2023 Euro. Phys. J. C 83 923. This theory unlike other modified theories of gravity cannot directly explain the current acceleration expansion in the absence of the cosmological constant and or existence of other forms of dark energy. hence, in this study we have reinvestigated holographic dark energy Ρ_(X)~h^(2) in the non-conserved theory of gravity. In this context, the density and pressure of dark energy depend on the non-conserved term and density of the dust matter field. As shown, due to non-conservation effects on large-scale structures, unlike the original holographic model, our model onsets an acceleration epoch for the current Universe satisfies observations. Moreover, the interaction and viscous scenarios are studied for this model.

关键词： non-conserved gravity covariant form of thermodynamics holographic dark energy

Marinoan glaciation in the Indian subcontinent——Anatomy and global implications

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Journal of Palaeogeography 2024年第2期13卷 293-308页

作者： h.N.Bhattacharya Department of Earth Sciences Techno India UniversityWest BengalSector VSalt LakeKolkata700091India

Detailed sedimentological analysis of the Pokaran Boulder Bed,representing the most basal unit of the Neoproterozoic-Lower Cambrian Marwar Supergroup,clearly indicates its glacial *** glacial sediments are interpreted as an ice-contact submarine fan *** on the detrital and inherited zircon population of the Marwar Supergroup sediments and interlayered pyroclastic deposits,a Marinoan cryochron of the Cryogenian Period is envisaged for the Pokaran Boulder *** well-preserved Ediacaran elements in the post-glacial sedimentary succession also support a Cryogenian to Early Cambrian age of the Marwar *** glacial deposition at the base of the Marwar Supergroup strengthens the regional correlation between the studied sediments with the Lesser himalayan Blaini-Krol-Tal sediments and the haqf Supergroup of *** available zircon ages and paleomagnetic data of the Malani Igneous suite,along with the Marinoan glacial deposits,detrital zircon ages,and Ediacaran fossil elements of the Marwar Supergroup add significant information to the Neoproterozoic Earth history.

关键词： Neoproterozoic Marinoan glaciation Diamictites Pokaran Boulder Bed Marwar Supergroup

Skeletal muscle as a molecular and cellular biomarker of disease progression in amyotrophic lateral sclerosis:a narrative review

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Neural Regeneration Research 2024年第4期19卷 747-753页

作者： Peter h.King Department of Neurology and Center for Neurodegeneration and Experimental Therapeutics The University of Alabama at BirminghamBirminghamALUSA Birmingham Veterans Affairs Medical Center BirminghamALUSA

Amyotrophic lateral sclerosis is a fatal multisystemic neurodegenerative disease with motor neurons being a primary *** progressive weakness is a hallmark feature of amyotrophic lateral sclerosis,there is considerable heterogeneity,including clinical presentation,progression,and the underlying triggers for disease *** on longitudinal studies with families harboring amyotrophic lateral sclerosis-associated gene mutations,it has become apparent that overt disease is preceded by a prodromal phase,possibly in years,where compensatory mechanisms delay symptom *** 85-90%of amyotrophic lateral sclerosis is sporadic,there is a strong need for identifying biomarkers that can detect this prodromal phase as motor neurons have limited capacity for *** Food and Drug Administration-approved therapies work by slowing the degenerative process and are most effective early in the *** muscle,including the neuromuscular junction,manifests abnormalities at the earliest stages of the disease,before motor neuron loss,making it a promising source for identifying biomarkers of the prodromal *** accessibility of muscle through biopsy provides a lens into the distal motor system at earlier stages and in real *** advent of“omics”technology has led to the identification of numerous dysregulated molecules in amyotrophic lateral sclerosis muscle,ranging from coding and non-coding RNAs to proteins and *** technology has opened the door for identifying biomarkers of disease activity and providing insight into disease mechanisms.A major challenge is correlating the myriad of dysregulated molecules with clinical or histological progression and understanding their relevance to presymptomatic phases of *** are two major goals of this *** first is to summarize some of the biomarkers identified in human amyotrophic lateral sclerosis muscle that have a clinicopathological correlation with disease activi

关键词： amyotrophic lateral sclerosis biomarkers clinicopathological correlation disease progression muscle biomarkers neurogenic atrophy neuromuscular junction non-coding RNAs presymptomatic stages skeletal muscle SOD1G93A mouse model

Experimental and numerical investigation on alternatives to sandy gravel

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Defence Technology（防务技术） 2024年第1期31卷 130-141页

作者： V.Denefeld h.Aurich Fraunhofer Institute for high-Speed Dynamics Ernst-Mach-Institut(EMI)Ernst-Zermelo-Str.479104FreiburgGermany Fraunhofer Institute for high-Speed Dynamics Ernst-Mach-Institut(EMI)Am Christianswuhr 279400KandernGermany

The NATO agreement STANAG 4569 defines the protection levels for the occupants of logistic and light armored *** Allied Engineering Publication,AEP-55,Volume 2 document outlines the test conditions for underbelly improvised explosive device(IEDs),which must be buried in water-saturated sandy *** use of sandy gravel has some drawbacks,for instance reproducibility,time consumption,and *** paper focuses on the investigation of four alternatives to sandy gravel,which could produce similar specific and cumulative impulses:a concrete pot filled with water,a concrete pot filled with quartz sand,a steel pot without filling and a concrete pot filled with glass spheres(diameter 200μm—300μm)and different water *** impulses are measured with a ring technology developed at the Fraunhofer EMI.A numerical soil model based on the work of Marrs,2014 and Fi serov a,2006 and considering the soil moisture was used to simulate the experiments with glass spheres at different water contents,showing much better agreement with the experiments than the classical Laine&Sandvik model,even for high saturation *** results can be used to create new test conditions at original scale that are more cost-effective,more reproducible and simpler to manage in comparison to the current tests carried out with STANAG sandy gravel.

关键词： Improvised explosive device(IED) Specific impulse Momentum transfer Sandy gravel Glass spheres Numerical model Soil moisture