Advances in Engineering Research

Global demand for industrial lubricants is increasing every year in line with the increasing of production and demand of various products. Castor oil has been acknowledged as one of vegetable oil base lubricant source that has advantages over mineral based lubricants due to their renewability properties....

The carbon dioxide is a common impurity to the natural gas production which causing equipment failures due to corrosion and natural gas calorific content decreased. Gathering Station of PT Pertamina EP Asset XY has significant carbon dioxide concentration on its natural gas production. However, installing...

The purpose of this study is to provide an overview of the increased use of ECDIS (Electronic Chart Display and Information System) and how it can contribute to enhancing safety on board by ensuring that officers are properly trained in its use. This research employs a qualitative approach and was conducted...

Haze has been a worldwide problem disturbing the daily life of human, and even causing a variety risk to human health. However, haze particles, normally named “air pollutants” and “toxic wastes”, were firstly used to remove heavy metals from wastewater with a high efficiency. The morphology of haze particles...

Diamond-like carbon (DLC) film has drawn an intensive concern, but suffers from its poor toughness. Characterization method for the film toughness is not available to date, which hampers the researches for toughening DLC films. This work attempts to reveal the scratch failure mechanism from stress aspects,...

Hydraulic maintenance vehicle for aviation is a critical ground device to ensure the flight safety and the provision of hydraulic oil. A novel multi-functional vehicle for aerial hydraulic maintenance is designed for proposing a maintenance approach for modern aircraft. Aiming at issues of existing ground...

Disulphide derivatised mesoporphyrin (DSDMP) and its cobalt complex Co(II)DSDMP were conveniently synthesized and successfully immobilized onto gold surface by monolayer self-assembly of disulfide. The modified electrode was characterized by Infrared Spectrometer (IR) and X-ray photoelectron spectroscopy...

Cylindrical liner is the place of burning to generate power or effort inside the Mother Machine. The size of the oversized diameter will affect the incomplete combustion. The purpose of this study was to determine the causes of broken piston rings and surging, the impact of oversized liners and strategies...

In this work, silk fibroin/carbamate blend films are fabricated in different ratios to improve the appropriate properties required for corneal stroma cell regeneration on the films. The structure of the films, the moisture content, protein dissolution loss rate, mechanical properties and light transmittance...

According to the Clausius inequality, it can be proven that the quotient of work-temperature in the real process is no less than one in the reversible process. On the basis of the Carnot theorem, it can be proven that the work in the real process is no less than one in the reversible process, or the...

In order to solve the constrained multi-objective optimization problem, an improved NSGA-II algorithm is proposed. On the basis of NSGA, the cross operation of the feasible and unfeasible solution is implemented in order to give full play to the role of the infeasible solution in the optimization process....

Global energy demand continues to grow rapidly every year; therefore, alternative energy sources are needed to reduce dependence on fossil fuels and support long-term sustainability. Renewable energy offers a viable solution, with biomass being one of the most promising. However, by products of the combustion...

High pressure mercury and nitrogen adsorption had been conducted on outcrop and core samples for studying the pore structure characteristics about shale in eastern uplift of Liaohe depression. The results showed that: The pores mainly are nano-scale and irregular in size and arrangement. The nitrogen...

Soil improvement as steps to be taken in reclamation works where the condition of soil under seabed is very bad based on soil investigaton . It is engineering requirement to do so in order to be able to get the stable soil surface where people can built port facilities on top of it. Pumping or deformation...

The Jammu & Kashmir State Power Development Corporation (JKSPDC) is contemplating for construction of different run of the river schemes on Dras – Suru Rivers to harness the power potential of these rivers. The Pre-feasibility Stage geotechnical and geological investigation of three hydroelectric projects...

In the recent years, using CO2 injection into oil reservoirs to enhanced oil recovery (CO2-EOR) has attracted more and more attention from industry and laboratory experiment. The mass transfer and diffusion of CO2 in oil is one of the key parameters of displacement process. In this study, by employing...

In the traditional power flow analysis, the output of generator is controllable and certain. While due to the intermittence and randomness of new energy resources, the output of new energy generator is uncertain, traditional power flow calculation cannot deal with this kind of uncertain power flow problem,...

Power industry as the main source of CO2 emissions, is facing tremendous challenge of CO2 emission reduction during the periods of “12th Five-year” and “13th Five-year”. How to maximize the reduction of power CO2 emissions under the premise of regional economic development and energy requirements is...

The objective of this study is to reduce marine pollution caused by the improper use and disposal of hazardous liquid chemical waste that does not comply with the procedures and regulations mandated by MARPOL 1973/1978. The research employs a qualitative approach with descriptive analysis. Data were...

In this paper, the signal collected by WM8731 that is a high resolution analog to digital controller (ADC) is set to establish custom NIOS II central processing unit (CPU) and peripheral controlling in the system on a programmable chip (SOPC) Builder, systems developing tool, of Altera Quartus II that...

Turpan-Hami Basin contains abundant coal resources and is an important part of large coal base in Xinjiang. In this study, the 4–2 coal seam of the Badaowan Formation in the Lower Jurassic in the Panji Coal Mine in the Turpan-Hami Basin is selected as the research object. Through systematic analysis...

Based on the generic name of Continuation Period Techniques (CPT), various different and effective Geophysical Techniques are covered. According to the Paragraph 69, Part II of the Protocol to the Comprehensive Nuclear-Test-ban Treaty(CTBT), the techniques allowed once the continuation of the inspection...

Flooding is a prevalent natural calamity in urban areas, particularly in tropical regions like Indonesia. Some places in Palembang are more likely to flood than others because of how people act and how nature acts. Human activities that contribute to flooding in Palembang include the construction of...

With the change of the large power grid's security and stability situation, the technical requirements of the power plant excitation system modeling and power system stabilizer (PSS) setting are continuously improved. In order to analyze the operation status of the excitation system of the grid-connected...

This research was carried out with the aim of developing a competency test instrument for the results of the navigation function practice exam in the bridge simulator for student officers (management level) of Nautical Studies at the Barombong Shipping Polytechnic. This research was conducted at the...

Due to imperfect water entry, a high speed supercavitating vehicle, while moving in the forward direction, rotatesinside the cavity. This rotation leads to a series of impacts between the vehicle body and the cavity wall. The impacts affect the trajectory as well as the stability of motion of the vehicle....

Data on the synthesis and sorption properties of natural calcium aluminosilicates modified by poly-1-vinyl imidazole (PVIm) and poly-4-vinyl pyridine (PVP) are presented. The fullest recovery of nickel (II) ions from low-concentration solutions is observed for PVP-modified aluminosilicates. Adsorption...

Semi-flexible pavement (SFP) can effectively refine rutting problem of asphalt pavements with the combining of rigidity and flexibility simultaneously. This study focuses on interconnected porosity rate (IPR), a key indicator to control engineering quality of semi-flexible pavement, and investigates...

In this work, a packaging laminate consisting of LDPE (Low Density Polyethylene), Al-foil (Aluminum foil) is focused, and failure due to necking in substrates and interfacial delamination under loading are considered. A coupled elasto-plasticity damage and fracture constitutive model is combined. The...

Ulcerative colitis is an inflammation in the intestinal tract. Animal models of ulcerative colitis were used to study unknown pathogenesis and identify new drugs. Animal models of ulcerative colitis could be induced by chemical agents such as dextran sulfate sodium, trinitrobenzene sulfonic acid, and...

On the reliability of failure data, this paper provides wide ranges of theoretical method, and determines the effectiveness of those methods about rolling bearing. Under the reference standard based on the empirical value of medium rank, the veracity about those methods apply to rolling bearing would...

Rolling bearings is the basic connection parts of machinery, whose quality plays an irreplaceable role for the normal operation of machinery and equipment. Therefore, it is particularly important to make an evaluation of bearing quality. In this paper, factors affecting the machining precision of the...

Accumulation of heavy metals in aqueous environment has raised increasing concerns for public health. An alginate based biodegradable adsorbent was successfully developed for fast removal of heavy metals, and could adsorb 99.4% Cu(II) in 10 min when immersed in 10 mM Cu(II). Surface characteristics exhibited...

Based on investigation dada on petroleum hydrocarbon (PHC) in July, August and October 1984 in Jiaozhou Bay, we analyzed the content, distribution of PHC. Results showed that PHC contents in 1984 in surface waters were 0.01-0.16 mg L-1 and were meeting Grade I (0.05 mg L-1), II (0.05 mg L-1) and III...

The interval prediction and stability analysis model of time series are verified by the manufacturing system and friction torque experiments of rolling bearings in this paper. According to the dynamic characteristics of the surface roundness error of outer ring, the stability situation of outer ring...

Procedures of the flexible job shop scheduling problems with a workpiece can be machined with different processing time, and not necessarily equal, taking into account the green low carbon emissions is an urgent need to solve manufacturing problems, construct a to minimize the maximum completion time...

To avoid the long time of dialysis process, a novel Strategy that Bovine serum albumin (BSA) was immobilized on Au-MNPs at first and afterward the CAP molecules were immobilized on the BSA in sequence has been applied to Chloramphenicol (CAP) detection with chemiluminescent immunoassays (CLIA) based...

As the core load-bearing system of modern large-scale buildings, complex spatial steel structures play a pivotal role in enhancing engineering efficiency and quality through intelligent optimization technologies. This paper addresses prevalent issues in current steel structure joint design, such as low...

This study adopts a 3D model of a double cantilever beam with interlayer defects under pulsed laser. The type II stress intensity factor at the 3D crack tip of the interlayer and its variation with time are obtained via displacement extrapolation under the classical thermoelasticity and generalized thermoelasticity,...

In order to control pesticide pollution in water environment, ozone-fly ash combined process was studied in laboratory. Dicamba(3,6-Dichloro-2-methoxybenzoic acid) was selected as model pollutant. The reaction temperature was changed to study the degradation efficiency. The experimental results show...

The need for the development of the guide fin design that will be used in vertical double shaft wind turbines, the development of the directional tail fins are used to increase the efficiency of the wind turbine. By using a ratio of 1.4 and the area being scaled to 0.042 m2. The purpose of this research...

This paper present a performance analysis of bi-directional converter using continuous switching pulse width modulation (CSPWM) and sinusoidal pulse width modulation (S-PWM) techniques. The analysis is carried out by means of rectification and inversion operation using two cases. In CASE-I CSPWM technique...

In recent years, with Schiff base being applied and researched deeply in biology, IsoIsovanillinSchiff base ligands’ synthesis and the coordinathion properties have become a hot spot in the research of Schiff bases compounds. This paper expounds that we keep Isovanillin and taurine as the raw material...

This paper is introduced by a kind of agricultural greenhouse automatic winding system, according to the changes in light intensity and temperature change to adjust the greenhouses mesh opening, when the current is too large or motor block or send out alarm when turning, and then stop the motor work....

Isolation and screening of a strain with high efficiency of flocculation effect from the activated sludge of a wastewater treatment plant in Kunming, after identification of strains, flocculating activity experiments, and eventually extracted Bacillus megaterium flocculant and study on its treatment...

Polymer nanotube (PNT) is a polymer nanomaterial with tubular structure. In this study, we have developed a simple technique for the fabrication of polymer nanotubes by using self-assembled metal organic nanotube (MONT) as a sacrificial template and dendritic amine and acid as precursor molecules. MONT...

In this paper, an intelligent monitoring terminal for boiler operating state was studied based on embedded technology, wireless communication technology, and highly integrated design technology. The architecture of intelligent monitoring system for industrial boiler was proposed firstly, and then the...

The drilling rate of penetration (ROP) is essential in the oil and gas industry, influencing both exploration efficiency and cost-effectiveness. The ROP optimization needs careful attention to dynamic and static drilling parameters prediction using machine learning (ML) and gene expression programming...

The project is a reinforced concrete frame construction office building, which contains 5 floors. Each floor's height is 3.6 meters . The whole elevation is 19.6 meters. In this area, the intensity of earthquake resistance is 7. The basic wind pressure is 0.75 kN/m2.The location type of the constructs...

This research is exploring the need of development of student-cantered learning model textbook to teach mathematics through Innovative Learning II course. This course is compulsory course for students of mathematics education study program. The paper focuses on the preliminary research of the three main...

Polycyclic aromatic hydrocarbons have very strong toxicity, it has intended to must be controlled primary by U.S. Environmental Protection Agency and the European Union. In this study, we investigated the samples of groundwater in 7 provinces of southwest China. The main conclusion is: (i) we detected...

As one of the hazardous solid wastes, iron sludge has received considerable and increasing attention for its potential damage to the environment. Thus this paper reports the reusability of iron sludge for a Fenton-type process. However, the slow transformation of Fe(III)/Fe(II) limits its repetitive...

Carried out the pump concrete mix optimizing tests for Jinping II diversion tunnels secondary lining by preference tests of 4 kinds of fly ash, comparison tests of 7 kinds of water reducing agent, mixing with air-entraining agent, mixing with different kinds of cement, parameters selection test of standard...

Silica gel was modified with N-[3-(Trimethoxysilyl)propyl]ethylenediamine, following grafted with ethylenediaminetetraacetic acid (EDTA). The functionalized silica gel was used to readily absorb Co(II) ion from aqueous solution forming SG-Co, via the coordination of EDTA group on the surface of silica...

We have studied a dynamic analysis of the prey-predator model that describes the interaction between pests and predators as natural enemies. The model is considering a Modified Leslie-Gower prey-predator model with the nature of fear of the growth of pests and additional food to predator. The predation...

To study the function and effects of L-cysteine on the separation analysis of inorganic divalent mercury [Hg(II)], methylmercury (MeHg) and ethylmercury (EtHg), the separation, transformation and signal intensity of mercury speciation were investigated with liquid chromatography coupled on-line cold...

Silica gel was modified with N-[3-(Trimethoxysilyl)propyl]ethylenediamine, following grafted with ethylenediaminetetraacetic acid (EDTA). The functionalized silica gel was used to readily absorb Cu(II) ion from aqueous solution forming SG-Cu, via the coordination of EDTA group on the surface of silica...

Amino-EDTA functionalized silica gel was prepared, and it was used to absorb Ni(II) ion from aqueous solution to form SG-Ni, via the coordination interaction of Ni(II) ion with EDTA group on the surface of the silica gel. The adsorption of anionic dyes including Acid Orange II (AO II) and Reactive Brilliant...

For large wind-photovoltaic-storage hybrid system, in order to maximize the match between output of the hybrid system and the scheduling plan, it is very important to coordinate the output power of wind, photovoltaic and energy storage system. Taking the uncertain of wind, photovoltaic generation and...

Shallow seismic exploration is the unique approach to obtain first-hand data of engineering geology for municipal construction. In this work, a mechanical shocking source has been designed for facilitating exploration of constructive stratum datum of urban construction. Aiming at the existing issues...

Copper and iron ions are common heavy metal ions in industrial wastewater, pollution can be caused by the direct emissions of wastewater to the environment, only when waste water reach the standard that it can be let out. Zeolite cross-linked chitosan composite adsorbent using natural raw materials,...

Macroalga, due to its high-harvesting yield, easily available, low-cost, and eco-friendly, become more and more favored tool-like alga for researchers. The method of control harmful algal blooms (HABs) by macroalga is an international study issue, and the water extract of seaweed have the advantage of...

The complex [Zn(C8H9N2O3S)(C8H6O5)(H2O)] (C8H9N2O3S = the Schiff base formed by 2-Pyridinecarboxaldehyde and taurine) was synthesized by reaction of Zn(CH3COO)2 - 2H2O. The crystal structure of the Zinc(II) complex has been determined and studied by X-ray diffraction. The complex is monoclinic, space...

PD control, short for Proportional-Derivative control, is a type of feedback control where the control signal is a linear combination of two terms: proportional to the error signal (the difference between the desired setpoint and the actual output) and derivative of the error signal. It is a common method...

The transportation sector accounts for approximately 27% of Indonesia’s greenhouse gas emissions, yet public awareness of individual carbon footprints remains critically low. This study presents a comprehensive mobile-based system for real-time vehicle carbon emission calculation and environmental awareness...

Based on investigation dada on lead (Pb) in July and October 1984 in bottom waters in Jiaozhou Bay, we analyzed the content, pollution level and distribution of Pb. Results showed that Pb contents in 1984 in bottom waters were 1.33-17.34 g L-1 and were meeting Grade II, III and IV in National Sea Water...

Two Lagrangian models are developed for the accurate simulation of advection-diffusion transport in unsteady open channel flows. The first one is based on a second-order partial differential equation (PDE) for pollutant concentration (model I), and the second one is a first-order system with diffusive...

The ecological design projects of different levels were carried out at the demonstration area. From 2013 to 2015, the dynamic monitoring of the demonstration zone water quality was carried out: the background information of wetland was investigated in 2013; two wetlands with serious pollution were selected...

In order to study the change condition of the influence on the centrifugal compressor blade field, we change the size of the centrifugal compressor inlet flow and the centrifugal compressor impeller rotational speed,using the realizable κ-ε ii equation model to do the steady numerical simulation for...

Fissures in the high stress mass of deep buried had a great influence on mechanical properties and wave velocity of rock mass. Based on similarity theory, Rock like materials simulated deep buried marble of Jinping-II Hydropower Station. Under different fracture and different confining pressure, the...

This paper analyzed the contents, pollution levels and their seasonal variations of Pb in the early stage of the reform and opening-up in Jiaozhou Bay, China. Results showed that Pb contents in surface waters in spring, summer and autumn in 1979 were 0.37-0.99 " "g L-1, 0.25-1.52 " "g L-1 and 0.29-0.75...

In order to improve the surface compatibility of bamboo pulp fibers (BPF) with plastic materials, enlarge the application fields, BPF macromolecule which was modified by 2-bromoisobutyryl bromide (BIBB) was chosen as the initiator. Copper(II)bromide/ N,N,N ,N ,N - pentamethyldiethylenetriamine PMDETA...

The seabuckthorn plant flexible dam (The SPFD) is a new type of ecological engi-neering, which can efficaciously control soil erosion and capture sediment in the Pisha sandstone gully within Loess Plateau of China. The seabuckthorn plant can resist flow due mainly to slowing velocity, and thus reduce...

This study added fly ash in cement mortar to replace some cement,using three grades (GradeI II III )and three contents (10% 20% 30%)of fly ash respectively to make nine kinds of cement mortar specimen. Standard curing periods were respectively 3,7,14,28 days of each kind of specimen. The compressive...

The Polbeng II ship has the following main dimensions: Lpp = 9.8 m, B = 1.8 m, H = 1 m, T = 0.6 m, and Vs = 21 knots. Based on the calculation, the ship’s resistance is 5.7 kN, and the engine power is 98 HP. In the ship’s transmission system, the gearbox ratio is 1:3, the shaft has a diameter of 13/4″,...

Nanocellulose was extracted from pineapple leaf using high pressure homogenization (HPH) in a liquid, homogeneous state. After optimizing conditions, nanocellulose was obtained at 100 MPa for 45 cycles with the diameter of 4-10 nm. The nanocellulose was cellulose II, with the crystallization index reducing...

By design the program and control the corresponding hardware devices, to design a Stepping motor control system to control the rotation of the stepping motor. The software part of this system is programmed based on LabVIEW, and communicates with the ELVIS II platform via USB port of the computer, so...

According to the characteristics of anaerobic, aerobic and semi-aerobic bioreactor landfill, combined with the status of rural garbage disposal. Indoor simulation comparison tests were carried out between anaerobic (R3-I) - semi-aerobic (R3-II) united bioreactor and anaerobic (R1), semi-aerobic (R2)...

To solve bi-objective assembly line design problem (ALDP) considering station paralleling and equipment selection, a Pareto-dominance-based method is presented. The two objectives are minimization of investment cost and maximization of availability of the assembly line. A multi-objective particle swarm...

The copper(II) complex[Cu(H3ssal)(2,2'-bipy)(4,4'-bipy)(H2O)](H3ssal=5-sulfosalicylic acid) as synthesized with 5-sulfosalicylic acid by high pressure hydrothermal method. The crystal structure of the copper (II) complex contained derivative bipyridine ligands has been determined and studied by X-ray...

Accurate characterization of reservoirs is a great difficulty in the study of carbonate reservoirs. Characterization of reservoirs shall be firstly based on the geological recognition of carbonate reservoirs, including multiple reservoir quality-related geologic features such as structure evolution,...

This paper applies the attribute mathematics theory to prefabricated building construction safety evaluation, establishes the attribute mathematics model of prefabricated building construction safety evaluation. Based on the analysis of main causes of prefabricated building construction safety, personnel...

MPSK is a modulation method which uses various phase states of the carrier to describe digital information. And it is widely used in the field of digital communications. Now, the applicable scope of MPSK signal modulation is too narrow, and it is necessary to know the type of signal source to modulate...

Traffic lights are common in daily life’s digital systems, the design of traffic lights need to use many basic functional units of digital systems. Traditional digital circuit design is based on the design of integrated circuit in small or medium scale, which has the limitations of needing too many circuits,...

The scan digital display has the function of receiving and processing digital signals. As an advanced display type, the digital display presents a trend of accelerating development. Because of shortage of the long development cycle and high price of the traditional display design, this paper designs...

According to the characteristics of deep diversion tunnel of Jinping II Hydropower Station located in the high field stress condition, for its surrounding rock, i.e. marble, the conventional triaxial test and pre-peak unloading test are carried out. Then study on its mechanical characteristics through...

Daqing oilfield was put into production in 1960. Excellent achievement is acquired. It has maintain the production of 5000ž104 tons / year for 27 years and 5500ž104 tons / year for 13 years. Main technologies adopted in Daqing oilfield include early-stage water flooding for pressure maintenance, separate-zone...

in this study, the influence s of the particle size, adsorption time, dosage, pH value and initial concentration of the solution on the removal effect of Cu (II) in groundwater were studied by batch experiments and got the static optimal reaction conditions to determine the Static influence factors firstly.

Researches on methyl tertiary butyl ether(MTBE) distillation desulfurization process are very common now, but the influence of the separation of tertiary butyl alcohol(TBA) in MTBE on this process was seldom reported. This paper analyzes the 2-column MTBE distillation desulfurization process in detail...

Simulated leaching solution of tin anode slime was prepared as electrolyte to investigate the performance of cyclone electrowinning on extraction of tin from solution in this work. The results showed that Sn(II) could be extracted as sponge tin with cyclone electrowinning. Sn(IV) could be extracted as...

The primary question in the debris flow initiation study is differentiation of the initiation process from other processes. This paper introduced a new experimental method and apparatus which can apply artificial rain, detect deformation, resistance and other variables. Based on the experimental data...

The process of gas-liquid two-phase flow of an IC anaerobic reactor (25L) was simulated by fluent software. Inner Cycle Flow Rate (QIC) under different volume loading rate(OLR), ratios of riser diameter to reactor diameter(Dr/D), ratios of reactor height to diameter (H/D) were investigated respectively....

This paper designs smart home electricity management system based on power line carrier communication. Firstly, the paper makes the ARM Cortex-M3 as a central controller and ports the uC/OS-II operating system on the ARM, then designs Web Serve program to mornitor and control equipment remotely using...

In this paper, from the experimental teaching, to describe the process of timing signal produce in the micro-program controller, and using Altera Quartus that is integrated development platform to validation logic functions. By the simulation design, you can see the design effect visually, to get a ring-pulse...

Ti-MCM-41 zeolite was hydrothermally synthesized by using tetrabutyl orthotitanate as titanium source and fumed silica as silicon. Powder X-ray diffraction UV-vis diffuse reflectance spectroscopy and inductively coupled plasma were used to characterize the product, results indicated revealed that the...

Conventional geolocation techniques include the time of arrival (TOA), the time difference of arrival (TDOA), the angle of arrival (AOA), the received signal strength (RSS) ,the fingerprint positioning based methods and etc. Among these location techniques, a method based on RSS has attracted much attention...

Sugarcane bagasse cellulose (SBC) was dissolved in three imidazolium-based ionic liquids (ILs) [Emim]DEP, [Emim]Ac and [Bmim]Cl at the same conditions (1% mass loading, 110 ). Among the three ILs, [Emim]DEP has the highest dissolution rate and regeneration yield of SBC. Both the original and regenerated...

Due to its remarkable mechanical qualities, composites are now widely used in unconventional industries, particularly aircraft. During assembly, drilling CFRP composite elements is a common activity, and choosing the right process parameters and geometry is essential to prevent drilling-related damage...

During the concrete pouring process, the long downtime would weaken the bonding strength between old and new concrete layers. The bonding parts would like to form horizontal cracks, especially winter intermittent surface in the severe cold region, of which cracks would easily propagates from surface...

The complex {[Cu(C9H8O4)(DMSO)2(H2O)2]·(DMSO)2}n (C9H8O4=2-Methyl-1,4-benzenedicarboxylic acid, DMSO = dimethyl sulfoxide)was synthesized by reaction of Cu(NO3)2·3H2O. The crystal structure of the copper(II) complex has been determined and studied by X-ray diffraction. The complex is monoclinic, space...