46 research outputs found
Fortuynia bungei Boiss., Fl.
No full textFortuynia bungei Boiss., Fl. Orient. 1: 402. 1867. Type: “Hab. ubique in Persiâ australi trans desertum magnum et inter Yezd et Ispahan (Bunge!). in deserto circa Djendack (Buhse!), in Affghaniâ occid. ad Anarderch (Bunge!)”. Lectotypus (designated here): IRAN: “inter Jesd et Isfahan ”, V.1859, Bunge s.n. (G-BOIS [G00332669]; isolecto-: P [P00741667, P00741668]). Syntypus: IRAN: “Persia”, 1847, Buhse 1259 (G-BOIS [G00332668], LE). = Fortuynia garcinii (Burm.) Shuttlew. ex Boiss. in Ann. Sci. Nat., Bot. ser. 2, 17: 178. 1842. Notes. – The lectotype is a collection folder of two sheets, the label of one is handwritten by Bunge and the other has a printed label and the species name in Boissier’s handwriting. No material of Bunge from Afghanistan was found in the Geneva herbaria, and it is likely that such material is at LE. Of the six sheets collected by Bunge and deposited at P, only the above two probably qualify for isolectotypes, though the printed label indicate April instead of May 1859, and the locality data was written in pencil that almost completely faded away. Although HEDGE (1968: 52–53) and JAFRI (1973: 43) recognized two species in Fortuynia, the former author correctly observed that there is a continuous variation in fruit morphology from being typically emarginate and as long as wide (F. bungei) to the acute or slightly emarginate and longer than broad (F. garcini) and that such variation can be found within the same population. Therefore, the genus is recognized here as monospecific instead of dispecific (AL-SHEHBAZ, 2012).Published as part of AL-Shehbaz, Ihsan A. & Barriera, Gabrielle, 2019, Typification of Edmond Boissier's Cruciferae (Brassicaceae) names enumerated in Flora Orientalis, pp. 1-193 in Boissiera 72 on page 170, DOI: 10.5281/zenodo.763043
Hesperis pulmonarioides Boiss.
No full textHesperis pulmonarioides Boiss. in Ann. Sci. Nat., Bot. ser. 2, 17: 68. 1842. Type: “[Aucher-Eloy] N. 129, Alep et Nardin”. Lectotypus (designated by DVOŘÁK, 1966b: 183): SYRIA: “ Alep ”, s.d., Aucher-Eloy 129 (G-BOIS [G00332224]; isolecto-: BM [BM000522194], K [K000693667], P [P00234984, P02272578, P02272579]). Notes. – Description of the species was emended by DVOŘÁK (1966b), and his lectotypification of the species is justified because Boissier annotated P 02272578 and thus based his species description on that sheet and the unicate in his herbarium. Dvořák annotated P 00234984 as the lectotype but did not cite that in his publications. FOURNIER (1866) and CULLEN (1965) recognized H. pulmonarioides and confirmed its occurrence in Turkey, though the latter author indicated that the species also grows in the Syrian desert.Published as part of AL-Shehbaz, Ihsan A. & Barriera, Gabrielle, 2019, Typification of Edmond Boissier's Cruciferae (Brassicaceae) names enumerated in Flora Orientalis, pp. 1-193 in Boissiera 72 on page 72, DOI: 10.5281/zenodo.763043
SSD-Based Workload Characteristics and Their Performance Implications
No full textThis repo contains blocktrace from YCSB benchmark run on a RocksDB KV store hosted on a ext4 File System.
More details can be found in the README file and also in our ACM TOS Paper here: https://dl.acm.org/doi/10.1145/3423137
Please cite our paper, if the trace is useful in your research:
@article{10.1145/3423137,
author = {Yadgar, Gala and Gabel, Moshe and Jaffer, Shehbaz and Schroeder, Bianca},
title = {SSD-Based Workload Characteristics and Their Performance Implications},
year = {2021},
issue_date = {January 2021},
publisher = {Association for Computing Machinery}, address = {New York, NY, USA},
volume = {17},
number = {1},
issn = {1553-3077},
url = {https://doi.org/10.1145/3423137},
doi = {10.1145/3423137},
abstract = {Storage systems are designed and optimized relying on wisdom derived from analysis studies of file-system and block-level workloads. However, while SSDs are becoming a dominant building block in many storage systems, their design continues to build on knowledge derived from analysis targeted at hard disk optimization. Though still valuable, it does not cover important aspects relevant for SSD performance. In a sense, we are “searching under the streetlight,” possibly missing important opportunities for optimizing storage system design.We present the first I/O workload analysis designed with SSDs in mind. We characterize traces from four repositories and examine their “temperature” ranges, sensitivity to page size, and “logical locality.” We then take the first step towards correlating these characteristics with three standard performance metrics: write amplification, read amplification, and flash read costs. Our results show that SSD-specific characteristics strongly affect performance, often in surprising ways.}, journal = {ACM Trans. Storage}, month = jan, articleno = {8}, numpages = {26}, keywords = {locality, workload characterization, I/O workload analysis, SSD}
}Paper BibTex:
@article{10.1145/3423137,
author = {Yadgar, Gala and Gabel, MOSHE and Jaffer, Shehbaz and Schroeder, Bianca},
title = {SSD-Based Workload Characteristics and Their Performance Implications},
year = {2021},
issue_date = {January 2021},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
volume = {17},
number = {1},
issn = {1553-3077},
url = {https://doi.org/10.1145/3423137},
doi = {10.1145/3423137},
abstract = {Storage systems are designed and optimized relying on wisdom derived from analysis studies of file-system and block-level workloads. However, while SSDs are becoming a dominant building block in many storage systems, their design continues to build on knowledge derived from analysis targeted at hard disk optimization. Though still valuable, it does not cover important aspects relevant for SSD performance. In a sense, we are "searching under the streetlight," possibly missing important opportunities for optimizing storage system design.We present the first I/O workload analysis designed with SSDs in mind. We characterize traces from four repositories and examine their "temperature" ranges, sensitivity to page size, and "logical locality." We then take the first step towards correlating these characteristics with three standard performance metrics: write amplification, read amplification, and flash read costs. Our results show that SSD-specific characteristics strongly affect performance, often in surprising ways.},
journal = {ACM Trans. Storage},
month = jan,
articleno = {8},
numpages = {26},
keywords = {locality, workload characterization, I/O workload analysis, SSD}
Evaluation of Machine Learning Models in Predicting Mechanical Properties of Additive Manufactured Parts
No full textDifferent machine learning (ML) models have been applied in predicting mechanical properties of additive-manufactured parts. However, the existing research primarily focuses on individual mechanical properties and overlooks interrelations among multiple properties and their combined responses to additive manufacturing (AM) process parameters. This research investigates ML models for predicting ultimate tensile strength (UTS), compressive strength (CS), and Young’s modulus (YM) of fused filament fabricated parts. Gaussian Process Regression (GPR), Support Vector Machines (SVM), Neural Networks (NNs) and Linear Regression (LinReg) models are evaluated. GPR achieved the highest performance for UTS and CS with R2 values of 0.95 and mean absolute errors (MAE) of 0.78 MPa and 2.4 MPa, respectively. For YM, SVM performed best with an R2 of 0.90 and an MAE of 23 MPa. SHAP analysis reveals that printing temperature and infill density are the most influential parameters for UTS and CS, respectively, while YM is primarily affected by infill density and wall thickness. These findings highlight the critical role of AM process parameters, such as wall thickness, layer height, infill density, print speed, and print temperature, in determining the part performance, and demonstrate the potential of ML models to effectively predict mechanical properties of 3D-printed components.The presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Substitution of Atriplex amnicola Leaves for Trifolium alexandarinum Hay Ration in Stall-Fed Teddy Goats
No full textABSTRACT The present study was conducted to examine the influence of partial replacement of conventional forages with saltbushes (Atriplex amnicola) leaves on Teddy goat performance. A basal feed comprising of 60% wheat straw and 40% Egyptian clover hay was substituted with a 50% fixed level of A. amnicola leaves hay. Data obtained for a 30 days of feeding trial showed a non-significant change in dry matter intake, organic matter intake, digestibility coefficients for crude protein, crude fiber and weight variation in response to substituted feed. However, there was more water intake, weight gain, and high digestibility of dry matter or organic matter in saltbush leave substituted feed group. It was noted that animals used more water when they are maintained on saltbush mixed rations. It was concluded that A. amnicola leaves could be used for the partial substitution of conventional forages to support livestock population maintained on saline affected lands
A comprehensive review on inherited Sensorineural Hearing Loss and their syndromes
No full textHearing impairment is an immensely diagnosed genetic cause, 5% of the total world population effects with different kind of congenital hearing loss (HL). In third-world countries or countries where consanguineous marriages are more common the frequency rate of genetic disorders are at its zenith. Approximately, the incidence of hearing afflictions is ostensibly 7-8:1000 individuals whereas it is estimated that about 466 million peoples suffer with significant HL, and of theses deaf cases 34 million are children’s up to March, 2020. Several genes and colossal numbers of pathogenic variants cause hearing impairment, which aided in next-generation with recessive, dominant or X-linked inheritance traits. This review highlights on syndromic and non-syndromic HL (SHL and NSHL), and categorized as conductive, sensorineural and mixed HL, which having autosomal dominant and recessive, and X-linked or mitochondrial mode of inheritance. Many hundred genes involved in HL are reported, and their mutation spectrum becomes very wide. Mapping of pathogenic genes in consanguinity family is facilitated to understand the disease history. Review presents the bases of HL and also focused on various genetic factors that cause deafness like the basics of genetic inheritance, and classic and well-characterized inherited factors of it. It also overviews the application of linkage analysis, SNPs genotyping and whole exome sequencing methods, in mapping and identification of new locus, causative genes and their variants in families inherited with HL. Conclusively, this review supports researchers in understanding the location of chromosome, the causative genes and specific locus which causing deafness in humans
Rapid Prototyping and Tooling Technology to Assist the Development of Low-Cost Dies
No full textThis case study aims toward the importance of the application of rapid prototyping and tooling technology in die design and manufacturing. Many conventional machining processes of die manufacturing, including computer numeric control (CNC) machining and electric discharge machining (EDM), are used by the local manufacturers of die, but these processes are time-consuming and expensive. There is a need to explore opportunities to reduce die manufacturing costs. This paper aims to assist the development of low-cost dies through the application of rapid prototyping and tooling technology. For this purpose, solid works software was used to design the die of a 4-hole Lego Block. 3D printing was incorporated in the existing capability of investment casting process for die manufacturing. A proper gating system design consideration was taken into account to ensure the accurate flow of casting material for achieving fine surface finish. From the results, it has been observed that gating system design with four ingates gives the optimum value of surface finish (~3.4156μm). The proposed rapid prototyping and tooling technology makes the practitioners (tool makers) capable of making dies with complex shapes, superior surface finishes, and dimensional accuracy in less or no time
Aubrieta amasya (Brassicaceae, Cruciferae), a new species from northern Turkey
No full textAubrieta amasya is described from Amasya Province in northern Turkey, and its relationship to closest relatives A. anamasica and A. pinardii is discussed. From these, it is readily distinguished by the veinless (vs. reticulate-veined) fruits and longer styles 7-8 (vs. 2-5) mm long.TUEBITAK Foundation [121Y430]The first author thanks the TUEBITAK Foundation for the grant 121Y430 that supported the fieldwork. We are grateful to Karol Marhold for the editorial advice, Dmitry A. German for a critical review of the manuscript, and Mike Bloomberg (MO) for scanning the illustration
Blockchain based secure energy marketplace scheme to motivate peer to peer microgrids
No full textIn the past few years, the trend of microgrids has been increasing very fast to reduce peak-hour costs. However, in these systems, third parties are still involved in selling surplus energy. This raises the cost of energy, and such systems have numerous operational and security barriers. These issues can be solved by the decentralized distributed system of microgrids, where a consumer can locally sell their surplus energy to another consumer. To deploy such a system, one must consider security barriers for the transaction of energy. This paper proposes a solution to these problems by devising a scheme as a marketplace where users interact with each other to buy and sell energy at better rates and get energy-generating resources on lease so that users do not have to worry about capital investment. An agreement between the owner of resources and the consumer is recorded on blockchain-based smart contracts. In this paper, a survey of well-known decentralized energy solutions is conducted. This paper also proposes an extra layer of security to leverage a shielded execution environment so that information about energy generated, utilized, and shared cannot be changed by consumers and third parties even if the system is compromised
Advanced mesh knitted curtain fabric for electromagnetic interference shielding
No full textIn modern society, a wide variety of electronic devices, such as those linked to Wi-Fi routers and power outlets, emit significant electromagnetic radiation. This radiation poses risks not only to human and animal health but also to data security, potentially serving as a source of sensitive information leakage. While short-term exposure to low-frequency radiation typically does not result in adverse effects, prolonged exposure has been associated with various health issues, including depression, nausea, anxiety, headaches, and, in some cases, miscarriages in women. The best solution to protect human from radiation is to cover human body with electromagnetic shielded textile fabrics. Author developed five different mesh-knitted structures and compared their properties with a plain single jersey structure. The purpose of developing mesh knitted fabric is to create curtains that can block or lessen electromagnetic radiation while still allowing light and air to pass through. Composite yarn containing stainless steel wire and carbon fiber was used. Fabric construction was carried out using a fully automatic flat knitting machine. The MH3 and MH5 mesh knitted structures were newly invented. The results showed that the MH3 mesh knitted structure exhibited the highest EMI SE among all the mesh knitted fabrics. The plain single jersey fabric (PJ0) included for the comparison with mesh knitted structures and it exhibited the highest value of electromagnetic interference shielding and UPF rating
