检索结果-南通市图书馆

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机车的零排放能源

国外铁道机车与动车 2024年第3期 20-21页

作者： [美]alex Luvishis 石开文(译) 张静(校) 不详

无论铁路机车采用哪种牵引方式,只有采用可再生能源或核能供电,才能实现净零排放。介绍全球采用绿色能源供电的零排放铁路,以及太阳能和风力发电站等可再生能源的技术发展及进出口状况。

关键词：聚光太阳能发电光伏太阳能发电风力发电场风力涡轮机海底电缆零排放铁路

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谷歌的AI人物图像生成功能陷入困境

商业周刊（中文版） 2024年第5期 56-58页

作者： Kurt Wagner alex Barinka 孟洁冰(译) 不详

对于谷歌雄心勃勃的人工智能发展战略来说,2月原本是个铸就辉煌的月份。该公司将其聊天机器人重新命名为Gemini,并发布了两项重要产品升级,以便在利益攸关的人工智能竞赛中更好地与各方对手竞争。在此之际,谷歌还开始允许Gemini的用户... 详细信息

对于谷歌雄心勃勃的人工智能发展战略来说,2月原本是个铸就辉煌的月份。该公司将其聊天机器人重新命名为Gemini,并发布了两项重要产品升级,以便在利益攸关的人工智能竞赛中更好地与各方对手竞争。在此之际,谷歌还开始允许Gemini的用户生成逼真的人物图像。

关键词：人工智能聊天机器人谷歌图像生成产品升级 Gemini AI 重新命名

Air Quality Assessment of Ubeji Community near Petroleum-Related Activities

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Open Journal of Air Pollution 2024年第2期13卷 57-71页

作者： Adedoyin Olubunmi Bankole Akinyemi Olufemi Ogunkeyede Oluwafunmilayo Mary Haruna Harrison Agboro Prince alex Ekhorutomwen Osasenaga Israel Otuomagie Christabel Ifuwe Efe Jeffery Isukuru Department of Environmental Management and Toxicology College of Science Federal University of Petroleum Resources Effurun Delta State Nigeria Department of Biology and Environmental Science College of Arts and Sciences University of New Haven West Haven USA Department of Surveying and Geoinformatics Faculty of Environmental Science Dennis Osadebay University Asaba Asaba Nigeria

The escalating global concern over air pollution requires rigorous investigations. This study assesses air quality near residential areas affected by petroleum-related activities in Ubeji Community, utilizing Aeroqual handheld mobile multi-gas monitors and air quality multi-meters. Air sampling occurred on three distinct days using multi-gas monitors and meters, covering parameters such as CO, NO2, CH4, NH3, VOCs, Particulate Matter, Temperature, Relative Humidity, and Air Quality Index. Soil and plant samples were collected and analyzed for physicochemical and organic components. Air pollutant concentrations showed significant fluctuations. Carbon monoxide (CO) ranged from 0.00 to 3.22 ppm, NO2 from 0.00 to 0.10 ppm, CH4 from 4.00 to 2083 ppm, NH3 from 371 to 5086 ppm, and VOCs from 414 to 6135 ppm. Soil analysis revealed low total nitrogen, and undetected BTEX levels. Plant samples displayed a pH range of 7.72 to 9.45. CO concentrations, although below WHO limits, indicated potential vehicular and industrial influences. Fluctuations in NO2 and CH4 were linked to traffic, industrial activities, and gas flaring. NH3 levels suggested diverse pollution sources. The result in this study highlights the dynamic nature of air pollution in Ubeji community, emphasizing the urgent need for effective pollution control measures. Although CO concentrations were within limits, continuous monitoring is essential. Elevated NO2 levels gave information on the impact of industrial activities, while high CH4 concentrations may be associated with gas flaring and illegal refining. The study recommends comprehensive measures and collaborative efforts to address these complex issues, safeguarding both the environment and public health. This study shows the potential synergy between air quality sensors and plants for holistic environmental health assessments, offering valuable insights for environmental assessments and remediation endeavours. The findings call for stringent regulations and

关键词： Air Quality Assessment Bioindicators Ubeji Community Pollution Assessment

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发现新鸟种康厄安纹胸鹛

森林与人类 2024年第5期 116-117页

作者： alex Berryman Cameron Rutt(摄影) 刘剑国(编译) 不详

美国康奈尔大学麦考利图书馆拥有世界上最大的野生动物声音库。目前生活在地球上的10749种鸟类中,只有124种最不为人知的鸟类在麦考利图书馆没有任何介绍。我们对它们还知之甚少,不能确定它们是否仍然存在,甚至不能确定它们是不是有效... 详细信息

美国康奈尔大学麦考利图书馆拥有世界上最大的野生动物声音库。目前生活在地球上的10749种鸟类中,只有124种最不为人知的鸟类在麦考利图书馆没有任何介绍。我们对它们还知之甚少,不能确定它们是否仍然存在,甚至不能确定它们是不是有效物种。

关键词：图书馆野生动物鸟类纹胸

Heavy Metal Levels and Ecological Risk in Crude Oil-Contaminated Soils from Okpare-Olomu, Niger Delta, Nigeria

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Journal of Environmental Protection 2024年第4期15卷 415-438页

作者： Adedoyin Olubunmi Bankole Akinyemi Olufemi Ogunkeyede Harrison Agboro Prince alex Ekhorutomwen Osasenaga Israel Otuomagie Khadijah Ateda Isimekhai Ekaette Akpan Fadairo Efe Jeffery Isukuru Department of Environmental Management and Toxicology College of Science Federal University of Petroleum Resources Effurun Nigeria Department of Biology and Environmental Science College of Arts and Sciences University of New Haven West Haven USA Department of Chemistry University of Abuja Abuja Nigeria Department of Science Laboratory Technology Petroleum Training Institute Effurun Nigeria

Crude oil spills have inflicted extensive disruption upon the Niger Delta ecosystem, resulting in crop loss and severe environmental damage. Such spills exacerbate heavy metal concentration within soil due to the presence of metallic ions. The Okpare-Olomu community has borne the brunt of crude oil pollution from illicit bunkering, sabotage, and equipment malfunction. This study targets an evaluation of ecological hazards linked to heavy metals (HMs) in crude oil impacted agriculturally soils within Okpare-Olomu in Ughelli South LGA of Delta State. In this study, 24 topsoil samples were obtained from areas affected by crude oil pollution;the heavy metal content was evaluated through atomic absorption spectrometry. The concentration ranges for HMs (mg/kg) in soil were: 24.1 - 23,174 (Cu);0.54 - 37.1 (Cd);9.05 - 54 (Cr);12 - 174 (Ni);18.5 - 8611 (Pb);and 148 - 9078 (Zn) at a soil depth of 0 - 15 cm. Notably, metal concentrations were recorded to be above permissible World Health Organization limits. Predominantly, Zn and Pb recorded higher heavy metal concentration when compared to other heavy metals analysed, notably at sampling points PT7 through PT24. Zinc and Pb contamination exhibited highly significant contamination factors, and contamination severity was evidenced across all sample points, signifying a grave risk level. Pollution load indices indicated pervasive extreme pollution levels. Geoaccumulation indices signaled moderate to strong pollution, mainly by Pb and Zn. Ecological risk assessments revealed variable levels of heavy metal contamination, from low to very high, with potential ecological risk reflecting markedly elevated levels. This study underscores the imperative for soil remediation to rectify ecological imbalances in agriculturally affected soil constituents.

关键词： Heavy Metals Crude Oil Pollution Degree of Contamination Potential Risk Index

Bioremediation Potential of the Macroalga Ulva lactuca (Chlorophyta) for Ammonium Removal in Elastomer Industry Wastewater

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Advances in Bioscience and Biotechnology 2024年第6期15卷 325-343页

作者： Diego Lelis alex Enrich-Prast Camille R. Chaves Thuane Mendes Anacleto Roberta R. C. Pereira Vinicius P. de Oliveira Programa de Ps-Graduao em Biotecnologia Vegetal e Bioprocessos Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Unidade Multiusurio de Anlises Ambientais Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Institute of Marine Science Federal University of So Paulo (IMar/UNIFESP) Santos Brazil Department of Thematic StudiesEnvironmental Change and Biogas Solutions Research Center (BSRC) Linkping University Linkping Sweden Department of Marine Biology Institute of Biology Federal University of Rio de Janeiro Rio de Janeiro Brazil

During the production of nitrile rubber, significant amounts of nitrogen in the form of ammonium are generated in the wastewater. The discharge of this high-nitrogen wastewater can lead to serious environmental issues, including eutrophication, disruption of aquatic ecosystems, and groundwater contamination. To mitigate these impacts, this research explored the bioremediation capabilities of the macroalgae Ulva lactuca (Chlorophyta) for removing nitrogen from nitrile rubber production wastewater. The study employed single-phase and Michaelis-Menten decay models based on ammonium consumption, using various dilutions of wastewater to identify the optimal concentration for treatment. The physiological state of the macroalgae was monitored by measuring the photosynthetic capacity and specific growth rate during the experiments. In the presence of U. lactuca, ammonium concentrations decreased in all treatment groups, confirming that the ammonium kinetics conformed to both applied models. Our results show that U. lactuca effectively reduces ammonium concentrations, with an approximate removal rate of 0.020 µM·g−1·min−1 across different wastewater concentrations (70%, 80%, 90%, and 100%). Notably, the treatments with 70%, 80%, and 90% wastewater strength achieved about 67% reduction in ammonium, demonstrating the alga’s capacity to treat high-nitrogen wastewater. The photosynthetic performance of U. lactuca initially declined in control conditions but stabilized across all treatments, highlighting its adaptability. The kinetic analysis using the Michaelis-Menten model indicated a Vmax of 1342 μM·g−1·DMh−1, suggesting a robust capacity for ammonium uptake when fully saturated. Our study underscores the potential of Ulva lactuca as a cost-effective and efficient agent for wastewater bioremediation, particularly in settings with high nitrogen loads.

关键词： Photosynthetic Quantum Yield One-Phase Decay Model Michaelis-Menten Model Nitrogen Physiological Parameters Elastomers

Birth Defects of the Child Optic Disc: Diagnostic Challenges and Prospects for Care

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Open Journal of Ophthalmology 2024年第2期14卷 128-135页

作者： Prudence Ada Assoumou Davy alex Mouinga Abayi Annick Kougou Ntoutoume Hélène Nyinko Aboughe Olive Matsanga Tatiana Harly Mba Aki Emmanuel Mve Mengome Owendo University Hospital Center Department of Surgery at the Faculty of Medicine of the University of Health Sciences Libreville Gabon Omar Bongo Ondimba Military Instructions Hospital Department of Surgery at the Faculty of Medicine of the University of Health Sciences Libreville Gabon Jeanne Ebori Foundation Mother and Child University Hospital Center Department of Surgery at the Faculty of Medicine of the University of Health Sciences Libreville Gabon

Introduction: Congenital optic disc anomalies in children refer to structural variations of the optic nerve head present from birth. These deformations involve the size, shape, color, and vessels of the optic disc. Although often asymptomatic, these anomalies can impact the visual development of the child, underscoring the importance of a thorough fundus examination for early detection and appropriate medical follow-up. We present two cases of congenital optic disc anomalies in children, illustrating the diagnostic challenges and complexity of their management. Case 1: A 3-year-old girl presented with a white spot in her left eye present since birth. Uncorrected distance visual acuity was 2/10 in the right eye, while she could perceive hand movements at 2 meters with the left eye. Normal examination in the right eye showed leukocoria, microphthalmia, and a white mass at the center of the optic disc on fundus examination in the left eye. Ocular imaging, including ultrasound and optical coherence tomography (OCT), confirmed the diagnosis of persistent hyperplastic primary vitreous (PHPV) in its mixed form in the left eye. Management included prescribing full optical correction and functional rehabilitation, without resorting to surgery. The course was marked by persistent amblyopia leading to a poor prognosis. Case 2: A 7-year-old girl consulted for vision disturbance in her right eye. Visual acuity was finger counting at 2 meters in the right eye and 10/10 in the left eye. Anterior segment examination revealed no abnormalities in both eyes. However, fundus examination highlighted a large funnel-shaped excavation associated with central glial proliferation, wheel spoke vessels, and neuroretinal ring atrophy in the right eye. Optical coherence tomography (OCT) of the right eye confirmed the diagnosis of isolated unilateral Morning Glory syndrome. Management included full optical correction and orthoptic rehabilitation. The course was marked by the absence of ocular com

关键词： Optic Disc PHPV Morning Glory Diagnosis Treatment

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“变色龙”空间——NOA建筑事务所新总部

现代装饰 2024年第3期 86-95页

作者： NOA设计团队(设计) alex Filz(摄影) 范嘉苑(编译) 不详

NOA建筑事务所新总部于近期正式落成,这也是事务所的第三次搬迁。经过13年的沉淀,这个集体已逐渐壮大,需要一个更大的空间来适应发展。这不仅是为了扩张,而是创造一个能培育创造力、激励创新,并充分反应NOA本质的生态系统。这个位于博... 详细信息

NOA建筑事务所新总部于近期正式落成,这也是事务所的第三次搬迁。经过13年的沉淀,这个集体已逐渐壮大,需要一个更大的空间来适应发展。这不仅是为了扩张,而是创造一个能培育创造力、激励创新,并充分反应NOA本质的生态系统。这个位于博尔扎诺的总部,将负责协调NOA位于米兰、都灵和柏林的其它分支机构,也是作为事务所设计能力的有形表达。

关键词：建筑事务所生态系统激励创新变色龙分支机构创造力

A Rare Cause of Leukocoria in Children: Persistent Hyperplastic Primary Vitreous

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Open Journal of Ophthalmology 2024年第1期14卷 63-68页

作者： Prudence Ada Assoumou Davy alex Mouinga Abayi Yoan Mboussou Annick Kougou Ntoutoume Helene Nyinko Aboughe Olive Matsanga Tatiana Harly Mba Aki Emmanuel Mve Mengome Owendo University Hospital Center Department of Surgery at the Faculty of Medicine of the University of Health Sciences Libreville Gabon Omar Bongo Ondimba Military Instructions Hospital Department of Surgery at the Faculty of Medicine of the University of Health Sciences Libreville Gabon Médivision Clinic Libreville Gabon Jeanne Ebori Foundation Mother and Child University Hospital Center Department of Surgery at the Faculty of Medicine of the University of Health Sciences Libreville Gabon

Introduction: Leukocoria, a whitish pupillary reflection, is a common warning sign of various pediatric ocular pathologies, including Persistent hyperplastic primary vitreous (PHVP). This case report describes the observation of a 3-year-old child with melanoderma, presenting with a white spot in the left eye since birth. Observation: Uncorrected distance visual acuity was 2/10 in the right eye and hand movements were perceived at 2 meters in the left eye. Examination of the anterior segment in the left eye revealed leukocoria and microphthalmia. The fundus examination was normal in the right eye but revealed a white mass extending from the center of the optic disc towards the temporal region in the left eye. Ocular imaging, including ocular ultrasound and optical coherence tomography, confirmed the diagnosis of PHVP, illustrated by a residual white mass at the center of the optic disc in the left eye. Conclusion: PHVP should be considered in the presence of leukocoria in a child, with urgent exclusion of retinoblastoma. This observation underscores the importance of early diagnosis for appropriate management. .

关键词： PHVP Leukocoria Amblyopia Ocular Imaging Childhood